Dry and windy conditions will produce dangerous fire weather conditions across the southern High Plains into the Southwest. Severe storms, including very large hail, strong tornadoes, and winds, are expected from the Great Lakes into the central/southern Plains. Heavy late-season snow and cold temperatures are expected in the northern to central Rockies. Heat is spreading across the eastern U.S.. Read More >
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426
FNUS54 KMRX 210637
FWFMRX
Fire Weather Planning Forecast for East Tennessee...Southwest
Virginia...and Extreme Southwest North Carolina
National Weather Service Morristown TN
237 AM EDT Thu May 21 2026
.DISCUSSION...
A wet and unsettled weather pattern will continue through the
weekend. Periods of showers and afternoon thunderstorms are
anticipated each day, especially during the afternoon and early
evening hours. Lightning, heavy rain, and gusty winds can be
expected during any thunderstorm.
VAZ001-220745-
Lee-
Including the city of Rose Hill
237 AM EDT Thu May 21 2026
Today Tonight Fri
Cloud Cover Mcldy Mcldy Mcldy
Temp (24h trend) 72-77 (-12) 58-63 (-1) 75-80
RH % (24h trend) 75-80 (+31) 95-100 (0) 71-76
RH Recovery Excellent
AM 20FT Wnd (mph) Lgt/Var SE 7
PM 20FT Wnd (mph) Lgt/Var E 5 SE 8
Transport Wnd (mph) W 5 E 6 S 13
Mixing Hgt(ft-agl) 1870 450 2290
Vent Rate (mph-ft) 9350 2700 29770
Max Dispersion Early 8 Poor 3 Very Poor 18 Gen Poor
Max Dispersion Late 8 Poor 3 Very Poor 25 Fair
Category Day 1 1 3
Max LVORI Early 10 8 9
Max LVORI Late 5 9 4
Precip Chance (%) 90 50 100
Precip Type Tstms Tstms Tstms
Precip Duration 6 1 5
Precip Amount 0.44 0.02 0.37
Precip Begin 8 AM Continuing Continuing
Precip End Continuing Continuing Continuing
Chance of Thunder (%) 40 20 50
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.FRIDAY NIGHT...Showers and a chance of thunderstorms. Lows in
the lower 60s. Southeast winds 5 to 10 mph.
.SATURDAY...Showers and a chance of thunderstorms. Highs in the
upper 70s. Minimum RH 79 percent. South winds less than 10 mph.
.SATURDAY NIGHT...Mostly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows around 60. South winds less
than 10 mph.
.SUNDAY...Showers and a chance of thunderstorms. Highs in the
lower 80s. Minimum RH 71 percent. Southwest winds less than
10 mph.
.SUNDAY NIGHT...Mostly cloudy with showers likely and a chance of
thunderstorms. Lows in the lower 60s. South winds less than
10 mph.
.MONDAY...Showers and a chance of thunderstorms. Highs in the
upper 70s. Minimum RH 72 percent. Southwest winds less than
10 mph.
.MONDAY NIGHT...Mostly cloudy with showers likely and a chance of
thunderstorms. Lows in the lower 60s. East winds less than
10 mph.
.TUESDAY...Showers and a chance of thunderstorms. Highs around
80. Minimum RH 70 percent. Southwest winds less than 10 mph.
.TUESDAY NIGHT...Mostly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the lower 60s. Southeast
winds less than 10 mph.
.WEDNESDAY...Showers and a chance of thunderstorms. Highs in the
lower 80s. Minimum RH 67 percent. Southwest winds less than
10 mph.
*The AGL Mixing Height is calculated from an average elevation for
the entire Forecast Zone and should only be used as a guide.
For a specific AGL Mixing Height a Spot Forecast will be needed.
$$
VAZ002-220745-
Wise-
Including the cities of Big Stone Gap, Norton, Wise, Coeburn,
Appalachia, and Pardee
237 AM EDT Thu May 21 2026
Today Tonight Fri
Cloud Cover Mcldy Mcldy Mcldy
Temp (24h trend) 68-73 (-13) 57-62 (-1) 72-77
RH % (24h trend) 79-84 (+34) 95-100 (+1) 73-78
RH Recovery Excellent
AM 20FT Wnd (mph) Lgt/Var S 8
PM 20FT Wnd (mph) Lgt/Var E 6 S 9
Transport Wnd (mph) N 6 E 6 S 14
Mixing Hgt(ft-agl) 1590 460 2340
Vent Rate (mph-ft) 9540 2760 32760
Max Dispersion Early 7 Poor 3 Very Poor 24 Fair
Max Dispersion Late 8 Poor 4 Very Poor 29 Fair
Category Day 1 1 3
Max LVORI Early 9 7 8
Max LVORI Late 6 9 4
Precip Chance (%) 100 60 90
Precip Type Tstms Tstms Tstms
Precip Duration 5 1 5
Precip Amount 0.36 0.07 0.27
Precip Begin 8 AM Continuing Continuing
Precip End Continuing Continuing Continuing
Chance of Thunder (%) 40 20 40
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.FRIDAY NIGHT...Showers and a slight chance of thunderstorms.
Lows around 60. Southeast winds 5 to 10 mph.
.SATURDAY...Showers and a chance of thunderstorms. Highs in the
mid 70s. Minimum RH 78 percent. South winds 5 to 10 mph.
.SATURDAY NIGHT...Mostly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows around 60. South winds less
than 10 mph.
.SUNDAY...Showers and a chance of thunderstorms. Highs in the
upper 70s. Minimum RH 69 percent. Southwest winds less than
10 mph.
.SUNDAY NIGHT...Mostly cloudy with a chance of showers and
thunderstorms. Lows in the lower 60s. South winds less than
10 mph.
.MONDAY...Showers and a chance of thunderstorms. Highs in the
upper 70s. Minimum RH 73 percent. Southwest winds less than
10 mph.
.MONDAY NIGHT...Mostly cloudy with showers likely and a slight
chance of thunderstorms. Lows in the lower 60s. South winds less
than 10 mph.
.TUESDAY...Showers and a chance of thunderstorms. Highs in the
upper 70s. Minimum RH 72 percent. Southwest winds less than
10 mph.
.TUESDAY NIGHT...Mostly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the lower 60s. South
winds less than 10 mph.
.WEDNESDAY...Showers and a chance of thunderstorms. Highs in the
upper 70s. Minimum RH 70 percent. Southwest winds less than
10 mph.
*The AGL Mixing Height is calculated from an average elevation for
the entire Forecast Zone and should only be used as a guide.
For a specific AGL Mixing Height a Spot Forecast will be needed.
$$
VAZ005-220745-
Scott VA-
Including the city of Hiltons
237 AM EDT Thu May 21 2026
Today Tonight Fri
Cloud Cover Mcldy Mcldy Mcldy
Temp (24h trend) 74-79 (-10) 60-65 (-1) 76-81
RH % (24h trend) 75-80 (+32) 95-100 (+1) 68-73
RH Recovery Excellent
AM 20FT Wnd (mph) Lgt/Var SE 7
PM 20FT Wnd (mph) Lgt/Var E 6 SE 8
Transport Wnd (mph) W 5 E 7 S 12
Mixing Hgt(ft-agl) 2050 400 2390
Vent Rate (mph-ft) 10250 2800 28680
Max Dispersion Early 9 Poor 3 Very Poor 18 Gen Poor
Max Dispersion Late 7 Poor 3 Very Poor 24 Fair
Category Day 1 1 2
Max LVORI Early 8 7 9
Max LVORI Late 5 9 4
Precip Chance (%) 100 50 90
Precip Type Tstms Tstms Tstms
Precip Duration 5 1 5
Precip Amount 0.42 0.02 0.24
Precip Begin 8 AM Continuing Continuing
Precip End Continuing Continuing Continuing
Chance of Thunder (%) 40 20 40
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.FRIDAY NIGHT...Showers and a slight chance of thunderstorms.
Lows in the lower 60s. Southeast winds 5 to 10 mph.
.SATURDAY...Showers and a chance of thunderstorms. Highs in the
upper 70s. Minimum RH 79 percent. South winds less than 10 mph.
.SATURDAY NIGHT...Mostly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the lower 60s. South
winds less than 10 mph.
.SUNDAY...Showers and a chance of thunderstorms. Highs in the
lower 80s. Minimum RH 70 percent. Southwest winds less than
10 mph.
.SUNDAY NIGHT...Mostly cloudy with a chance of showers and
thunderstorms. Lows in the lower 60s. South winds less than
10 mph.
.MONDAY...Showers and a chance of thunderstorms. Highs around 80.
Minimum RH 72 percent. Southwest winds less than 10 mph.
.MONDAY NIGHT...Mostly cloudy with showers likely and a chance of
thunderstorms. Lows in the lower 60s. Southeast winds less than
10 mph.
.TUESDAY...Showers and a chance of thunderstorms. Highs in the
lower 80s. Minimum RH 70 percent. Southwest winds less than
10 mph.
.TUESDAY NIGHT...Mostly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the lower 60s. South
winds less than 10 mph.
.WEDNESDAY...Showers and a chance of thunderstorms. Highs in the
lower 80s. Minimum RH 68 percent. Southwest winds less than
10 mph.
*The AGL Mixing Height is calculated from an average elevation for
the entire Forecast Zone and should only be used as a guide.
For a specific AGL Mixing Height a Spot Forecast will be needed.
$$
VAZ006-220745-
Russell-
Including the cities of Hansonville, Lebanon, Dye, Castlewood,
Honaker, and Rosedale
237 AM EDT Thu May 21 2026
Today Tonight Fri
Cloud Cover Mcldy Mcldy Mcldy
Temp (24h trend) 71-76 (-11) 59-64 (-2) 72-77
RH % (24h trend) 77-82 (+36) 95-100 (+3) 70-75
RH Recovery Excellent
AM 20FT Wnd (mph) Lgt/Var SE 11
PM 20FT Wnd (mph) Lgt/Var E 10 SE 11
Transport Wnd (mph) NW 5 E 5 SE 12
Mixing Hgt(ft-agl) 2000 420 2200
Vent Rate (mph-ft) 10000 2100 26400
Max Dispersion Early 10 Poor 3 Very Poor 22 Fair
Max Dispersion Late 8 Poor 4 Very Poor 22 Fair
Category Day 1 1 2
Max LVORI Early 9 7 8
Max LVORI Late 5 7 4
Precip Chance (%) 100 60 90
Precip Type Tstms Tstms Tstms
Precip Duration 4 1 5
Precip Amount 0.46 0.02 0.12
Precip Begin 8 AM Continuing Continuing
Precip End Continuing Continuing Continuing
Chance of Thunder (%) 40 20 30
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.FRIDAY NIGHT...Showers and a slight chance of thunderstorms.
Lows in the lower 60s. Southeast winds 5 to 15 mph.
.SATURDAY...Showers and a chance of thunderstorms. Highs in the
mid 70s. Minimum RH 79 percent. South winds 5 to 10 mph.
.SATURDAY NIGHT...Mostly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the lower 60s. South
winds less than 10 mph.
.SUNDAY...Showers and a chance of thunderstorms. Highs in the
upper 70s. Minimum RH 69 percent. Southwest winds less than
10 mph.
.SUNDAY NIGHT...Mostly cloudy with a chance of showers and
thunderstorms. Lows in the lower 60s. South winds less than
10 mph.
.MONDAY...Showers and a chance of thunderstorms. Highs in the
upper 70s. Minimum RH 73 percent. Southwest winds less than
10 mph.
.MONDAY NIGHT...Mostly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the lower 60s. South
winds less than 10 mph.
.TUESDAY...Showers and a chance of thunderstorms. Highs in the
upper 70s. Minimum RH 72 percent. Southwest winds less than
10 mph.
.TUESDAY NIGHT...Mostly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the lower 60s. South
winds less than 10 mph.
.WEDNESDAY...Showers and a chance of thunderstorms. Highs in the
upper 70s. Minimum RH 71 percent. Southwest winds less than
10 mph.
*The AGL Mixing Height is calculated from an average elevation for
the entire Forecast Zone and should only be used as a guide.
For a specific AGL Mixing Height a Spot Forecast will be needed.
$$
VAZ008-220745-
Washington VA-
Including the cities of Benhams, Bristol VA, and Abingdon
237 AM EDT Thu May 21 2026
Today Tonight Fri
Cloud Cover Mcldy Mcldy Mcldy
Temp (24h trend) 74-79 (-9) 57-62 (-2) 73-78
RH % (24h trend) 72-77 (+30) 95-100 (+2) 63-68
RH Recovery Excellent
AM 20FT Wnd (mph) Lgt/Var SE 11
PM 20FT Wnd (mph) Lgt/Var E 9 SE 11
Transport Wnd (mph) SW 6 E 9 S 13
Mixing Hgt(ft-agl) 2360 400 2490
Vent Rate (mph-ft) 14160 3600 32370
Max Dispersion Early 12 Poor 3 Very Poor 18 Gen Poor
Max Dispersion Late 11 Poor 4 Very Poor 26 Fair
Category Day 2 1 3
Max LVORI Early 8 6 9
Max LVORI Late 5 8 4
Precip Chance (%) 100 60 80
Precip Type Tstms Tstms Tstms
Precip Duration 4 1 5
Precip Amount 0.58 0.04 0.07
Precip Begin 8 AM Continuing Continuing
Precip End Continuing Continuing Continuing
Chance of Thunder (%) 40 20 30
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.FRIDAY NIGHT...Showers and a slight chance of thunderstorms.
Lows in the upper 50s. Southeast winds 5 to 10 mph.
.SATURDAY...Showers and a chance of thunderstorms. Highs in the
mid 70s. Minimum RH 76 percent. South winds 5 to 10 mph.
.SATURDAY NIGHT...Mostly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the upper 50s. Southeast
winds less than 10 mph.
.SUNDAY...Showers and a chance of thunderstorms. Highs around 80.
Minimum RH 70 percent. Southwest winds less than 10 mph.
.SUNDAY NIGHT...Mostly cloudy with a chance of showers and
thunderstorms. Lows in the lower 60s. South winds less than
10 mph.
.MONDAY...Showers and a chance of thunderstorms. Highs in the
upper 70s. Minimum RH 71 percent. Southwest winds less than
10 mph.
.MONDAY NIGHT...Mostly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the lower 60s. Southeast
winds less than 10 mph.
.TUESDAY...Showers and a chance of thunderstorms. Highs in the
upper 70s. Minimum RH 71 percent. Southwest winds less than
10 mph.
.TUESDAY NIGHT...Mostly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows around 60. South winds less
than 10 mph.
.WEDNESDAY...Showers and a chance of thunderstorms. Highs in the
upper 70s. Minimum RH 69 percent. Southwest winds less than
10 mph.
*The AGL Mixing Height is calculated from an average elevation for
the entire Forecast Zone and should only be used as a guide.
For a specific AGL Mixing Height a Spot Forecast will be needed.
$$
TNZ018-220745-
Johnson-
Including the cities of Doeville, Mountain City, Neva,
Shady Valley, Trade, and Laurel Bloomery
237 AM EDT Thu May 21 2026
Today Tonight Fri
Cloud Cover Mcldy Mcldy Mcldy
Temp (24h trend) 74-79 (-8) 55-60 (-1) 70-75
RH % (24h trend) 64-69 (+24) 95-100 (+5) 61-66
RH Recovery Excellent
AM 20FT Wnd (mph) Lgt/Var SE 8
PM 20FT Wnd (mph) Lgt/Var SE 7 SE 9
Transport Wnd (mph) SW 7 E 6 S 13
Mixing Hgt(ft-agl) 2300 430 1890
Vent Rate (mph-ft) 16100 2580 24570
Max Dispersion Early 13 Gen Poor 5 Very Poor 16 Gen Poor
Max Dispersion Late 13 Gen Poor 6 Very Poor 21 Fair
Category Day 2 1 2
Max LVORI Early 7 6 7
Max LVORI Late 4 7 3
Precip Chance (%) 90 70 70
Precip Type Tstms Tstms Tstms
Precip Duration 5 2 2
Precip Amount 0.49 0.06 0.05
Precip Begin 9 AM Continuing Continuing
Precip End Continuing Continuing Continuing
Chance of Thunder (%) 50 20 20
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.FRIDAY NIGHT...Showers and a slight chance of thunderstorms.
Lows in the mid 50s. Southeast winds 5 to 10 mph.
.SATURDAY...Showers and a chance of thunderstorms. Highs in the
mid 70s. Minimum RH 73 percent. South winds less than 10 mph.
.SATURDAY NIGHT...Mostly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the upper 50s. Southeast
winds less than 10 mph.
.SUNDAY...Showers and a chance of thunderstorms. Highs in the
upper 70s. Minimum RH 68 percent. Southwest winds less than
10 mph.
.SUNDAY NIGHT...Mostly cloudy with a chance of showers and
thunderstorms. Lows in the upper 50s. South winds less than
10 mph.
.MONDAY...Showers and a chance of thunderstorms. Highs in the
upper 70s. Minimum RH 68 percent. Southwest winds less than
10 mph.
.MONDAY NIGHT...Mostly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the upper 50s. Southeast
winds less than 10 mph.
.TUESDAY...Showers and a chance of thunderstorms. Highs in the
upper 70s. Minimum RH 68 percent. Southwest winds less than
10 mph.
.TUESDAY NIGHT...Mostly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the upper 50s. South
winds less than 10 mph.
.WEDNESDAY...Showers and a chance of thunderstorms. Highs in the
upper 70s. Minimum RH 65 percent. West winds less than 10 mph.
*The AGL Mixing Height is calculated from an average elevation for
the entire Forecast Zone and should only be used as a guide.
For a specific AGL Mixing Height a Spot Forecast will be needed.
$$
TNZ047-220745-
Southeast Carter-
Including the city of Hampton
237 AM EDT Thu May 21 2026
Today Tonight Fri
Cloud Cover Mcldy Mcldy Mcldy
Temp (24h trend) 72-77 (-8) 57-62 (-1) 69-74
RH % (24h trend) 68-73 (+25) 95-100 (+8) 65-70
RH Recovery Excellent
AM 20FT Wnd (mph) Lgt/Var SE 11
PM 20FT Wnd (mph) Lgt/Var SE 10 SE 11
Transport Wnd (mph) SW 7 E 6 S 14
Mixing Hgt(ft-agl) 2330 420 2090
Vent Rate (mph-ft) 16310 2520 29260
Max Dispersion Early 15 Gen Poor 5 Very Poor 19 Gen Poor
Max Dispersion Late 15 Gen Poor 7 Poor 26 Fair
Category Day 2 1 2
Max LVORI Early 5 6 6
Max LVORI Late 4 6 3
Precip Chance (%) 100 70 70
Precip Type Tstms Tstms Tstms
Precip Duration 6 2 2
Precip Amount 0.61 0.08 0.04
Precip Begin 8 AM Continuing Continuing
Precip End Continuing Continuing Continuing
Chance of Thunder (%) 50 20 30
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.FRIDAY NIGHT...Showers and a slight chance of thunderstorms.
Lows in the upper 50s. Southeast winds 5 to 10 mph.
.SATURDAY...Showers and a chance of thunderstorms. Highs in the
lower 70s. Minimum RH 77 percent. South winds 5 to 10 mph.
.SATURDAY NIGHT...Mostly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows around 60. Southeast winds
less than 10 mph.
.SUNDAY...Showers and a chance of thunderstorms. Highs in the
upper 70s. Minimum RH 70 percent. South winds less than 10 mph.
.SUNDAY NIGHT...Mostly cloudy with showers likely and a chance of
thunderstorms. Lows in the lower 60s. South winds less than
10 mph.
.MONDAY...Showers and a chance of thunderstorms. Highs in the mid
70s. Minimum RH 73 percent. Southwest winds less than 10 mph.
.MONDAY NIGHT...Mostly cloudy with a chance of showers and
thunderstorms. Lows in the lower 60s. Southeast winds less than
10 mph.
.TUESDAY...Showers and a chance of thunderstorms. Highs in the
upper 70s. Minimum RH 72 percent. Southwest winds less than
10 mph.
.TUESDAY NIGHT...Mostly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows around 60. South winds less
than 10 mph.
.WEDNESDAY...Showers and a chance of thunderstorms. Highs in the
upper 70s. Minimum RH 69 percent. West winds less than 10 mph.
*The AGL Mixing Height is calculated from an average elevation for
the entire Forecast Zone and should only be used as a guide.
For a specific AGL Mixing Height a Spot Forecast will be needed.
$$
TNZ045-220745-
Unicoi-
Including the cities of Erwin, Unicoi, and Limestone Cove
237 AM EDT Thu May 21 2026
Today Tonight Fri
Cloud Cover Mcldy Mcldy Mcldy
Temp (24h trend) 72-77 (-9) 60-65 (-1) 71-76
RH % (24h trend) 67-72 (+24) 93-98 (+8) 62-67
RH Recovery Excellent
AM 20FT Wnd (mph) Lgt/Var SE 11
PM 20FT Wnd (mph) Lgt/Var SE 9 SE 11
Transport Wnd (mph) SW 7 E 5 S 16
Mixing Hgt(ft-agl) 2220 420 2580
Vent Rate (mph-ft) 15540 2100 41280
Max Dispersion Early 14 Gen Poor 4 Very Poor 27 Fair
Max Dispersion Late 13 Gen Poor 6 Very Poor 35 Fair
Category Day 2 1 3
Max LVORI Early 5 6 5
Max LVORI Late 5 5 3
Precip Chance (%) 100 60 80
Precip Type Tstms Tstms Tstms
Precip Duration 5 2 5
Precip Amount 0.69 0.09 0.06
Precip Begin 8 AM Continuing Continuing
Precip End Continuing Continuing Continuing
Chance of Thunder (%) 50 20 30
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.FRIDAY NIGHT...Showers and a slight chance of thunderstorms.
Lows in the lower 60s. Southeast winds 5 to 10 mph.
.SATURDAY...Showers and a chance of thunderstorms. Highs in the
mid 70s. Minimum RH 74 percent. South winds 5 to 10 mph.
.SATURDAY NIGHT...Mostly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the lower 60s. South
winds less than 10 mph.
.SUNDAY...Showers and a chance of thunderstorms. Highs in the
upper 70s. Minimum RH 67 percent. Southwest winds less than
10 mph.
.SUNDAY NIGHT...Mostly cloudy with showers likely and a chance of
thunderstorms. Lows in the mid 60s. South winds less than 10 mph.
.MONDAY...Showers and a chance of thunderstorms. Highs in the
upper 70s. Minimum RH 70 percent. Southwest winds less than
10 mph.
.MONDAY NIGHT...Mostly cloudy with showers likely and a chance of
thunderstorms. Lows in the mid 60s. Southeast winds less than
10 mph.
.TUESDAY...Showers and a chance of thunderstorms. Highs in the
upper 70s. Minimum RH 68 percent. Southwest winds less than
10 mph.
.TUESDAY NIGHT...Mostly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the mid 60s. South winds
less than 10 mph.
.WEDNESDAY...Showers and a chance of thunderstorms. Highs in the
upper 70s. Minimum RH 67 percent. Southwest winds less than
10 mph.
*The AGL Mixing Height is calculated from an average elevation for
the entire Forecast Zone and should only be used as a guide.
For a specific AGL Mixing Height a Spot Forecast will be needed.
$$
TNZ043-220745-
Southeast Greene-
Including the city of Cedar Creek
237 AM EDT Thu May 21 2026
Today Tonight Fri
Cloud Cover Mcldy Mcldy Mcldy
Temp (24h trend) 71-76 (-10) 60-65 (-1) 72-77
RH % (24h trend) 68-73 (+26) 93-98 (+4) 58-63
RH Recovery Excellent
AM 20FT Wnd (mph) Lgt/Var SE 12
PM 20FT Wnd (mph) Lgt/Var SE 9 SE 13
Transport Wnd (mph) W 6 SE 5 S 16
Mixing Hgt(ft-agl) 1990 420 2440
Vent Rate (mph-ft) 11940 2100 39040
Max Dispersion Early 9 Poor 4 Very Poor 28 Fair
Max Dispersion Late 9 Poor 6 Very Poor 34 Fair
Category Day 1 1 3
Max LVORI Early 6 6 5
Max LVORI Late 5 5 3
Precip Chance (%) 100 50 80
Precip Type Tstms Tstms Tstms
Precip Duration 5 1 5
Precip Amount 0.67 0.04 0.15
Precip Begin 8 AM Continuing Continuing
Precip End Continuing Continuing Continuing
Chance of Thunder (%) 50 20 40
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.FRIDAY NIGHT...Showers and a slight chance of thunderstorms.
Lows in the lower 60s. Southeast winds 5 to 10 mph.
.SATURDAY...Showers and a chance of thunderstorms. Highs in the
mid 70s. Minimum RH 75 percent. South winds 5 to 10 mph.
.SATURDAY NIGHT...Mostly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the lower 60s. Southeast
winds less than 10 mph.
.SUNDAY...Showers and a chance of thunderstorms. Highs in the
upper 70s. Minimum RH 68 percent. South winds less than 10 mph.
.SUNDAY NIGHT...Mostly cloudy with showers likely and a chance of
thunderstorms. Lows in the lower 60s. Southeast winds less than
10 mph.
.MONDAY...Showers and a chance of thunderstorms. Highs in the
upper 70s. Minimum RH 71 percent. Southwest winds less than
10 mph.
.MONDAY NIGHT...Mostly cloudy with showers likely and a chance of
thunderstorms. Lows in the lower 60s. Southeast winds less than
10 mph.
.TUESDAY...Showers and a chance of thunderstorms. Highs in the
upper 70s. Minimum RH 69 percent. West winds less than 10 mph.
.TUESDAY NIGHT...Mostly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the lower 60s. South
winds less than 10 mph.
.WEDNESDAY...Showers and a chance of thunderstorms. Highs in the
upper 70s. Minimum RH 67 percent. Southwest winds less than
10 mph.
*The AGL Mixing Height is calculated from an average elevation for
the entire Forecast Zone and should only be used as a guide.
For a specific AGL Mixing Height a Spot Forecast will be needed.
$$
TNZ041-220745-
Cocke Smoky Mountains-
Including the city of Hartford
237 AM EDT Thu May 21 2026
Today Tonight Fri
Cloud Cover Mcldy Mcldy Mcldy
Temp (24h trend) 72-77 (-9) 61-66 (-1) 73-78
RH % (24h trend) 72-77 (+27) 94-99 (+7) 62-67
RH Recovery Excellent
AM 20FT Wnd (mph) Lgt/Var SE 11
PM 20FT Wnd (mph) Lgt/Var SE 7 SE 10
Transport Wnd (mph) W 5 SE 6 S 13
Mixing Hgt(ft-agl) 1780 400 3020
Vent Rate (mph-ft) 8900 2400 39260
Max Dispersion Early 8 Poor 3 Very Poor 28 Fair
Max Dispersion Late 8 Poor 5 Very Poor 33 Fair
Category Day 1 1 3
Max LVORI Early 6 6 6
Max LVORI Late 5 5 3
Precip Chance (%) 100 50 90
Precip Type Tstms Tstms Tstms
Precip Duration 4 1 6
Precip Amount 0.72 0.03 0.14
Precip Begin 8 AM Continuing Continuing
Precip End Continuing Continuing Continuing
Chance of Thunder (%) 50 20 40
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.FRIDAY NIGHT...Showers and a chance of thunderstorms. Lows in
the mid 60s. Southeast winds 5 to 10 mph.
.SATURDAY...Showers and a chance of thunderstorms. Highs in the
mid 70s. Minimum RH 74 percent. South winds 5 to 10 mph.
.SATURDAY NIGHT...Mostly cloudy with a slight chance of showers
and thunderstorms. Lows in the mid 60s. South winds less than
10 mph.
.SUNDAY...Showers and a chance of thunderstorms. Highs in the
upper 70s. Minimum RH 70 percent. Southwest winds less than
10 mph.
.SUNDAY NIGHT...Mostly cloudy with showers likely and a chance of
thunderstorms. Lows in the mid 60s. South winds less than 10 mph.
.MONDAY...Showers and a chance of thunderstorms. Highs in the
upper 70s. Minimum RH 71 percent. Southwest winds less than
10 mph.
.MONDAY NIGHT...Mostly cloudy with a chance of showers and
thunderstorms. Lows in the mid 60s. South winds less than 10 mph.
.TUESDAY...Showers and a chance of thunderstorms. Highs in the
upper 70s. Minimum RH 69 percent. West winds less than 10 mph.
.TUESDAY NIGHT...Mostly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the mid 60s. Southeast
winds less than 10 mph.
.WEDNESDAY...Showers and a chance of thunderstorms. Highs in the
upper 70s. Minimum RH 68 percent. West winds less than 10 mph.
*The AGL Mixing Height is calculated from an average elevation for
the entire Forecast Zone and should only be used as a guide.
For a specific AGL Mixing Height a Spot Forecast will be needed.
$$
TNZ074-220745-
Sevier Smoky Mountains-
Including the cities of Elkmont and Gatlinburg
237 AM EDT Thu May 21 2026
Today Tonight Fri
Cloud Cover Mcldy Mcldy Mcldy
Temp (24h trend) 69-74 (-9) 59-64 (-1) 71-76
RH % (24h trend) 68-73 (+21) 95-100 (+8) 63-68
RH Recovery Excellent
AM 20FT Wnd (mph) Lgt/Var S 13
PM 20FT Wnd (mph) Lgt/Var S 9 S 11
Transport Wnd (mph) SW 7 SE 6 S 13
Mixing Hgt(ft-agl) 2060 420 3150
Vent Rate (mph-ft) 14420 2520 40950
Max Dispersion Early 13 Gen Poor 3 Very Poor 24 Fair
Max Dispersion Late 10 Poor 5 Very Poor 33 Fair
Category Day 1 1 3
Max LVORI Early 6 6 5
Max LVORI Late 5 6 4
Precip Chance (%) 100 50 90
Precip Type Tstms Tstms Tstms
Precip Duration 4 1 6
Precip Amount 0.70 0.04 0.21
Precip Begin 8 AM Continuing Continuing
Precip End Continuing Continuing Continuing
Chance of Thunder (%) 50 20 50
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.FRIDAY NIGHT...Showers and a chance of thunderstorms. Lows in
the lower 60s. South winds 5 to 10 mph.
.SATURDAY...Showers and a chance of thunderstorms. Highs in the
lower 70s. Minimum RH 75 percent. South winds 5 to 10 mph.
.SATURDAY NIGHT...Mostly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the lower 60s. South
winds less than 10 mph.
.SUNDAY...Showers and a chance of thunderstorms. Highs in the mid
70s. Minimum RH 72 percent. Southwest winds less than 10 mph.
.SUNDAY NIGHT...Mostly cloudy with a chance of showers and
thunderstorms. Lows in the lower 60s. Southeast winds less than
10 mph.
.MONDAY...Showers and a chance of thunderstorms. Highs in the
upper 70s. Minimum RH 70 percent. Southwest winds less than
10 mph.
.MONDAY NIGHT...Mostly cloudy with showers likely and a chance of
thunderstorms. Lows in the lower 60s. Southeast winds less than
10 mph.
.TUESDAY...Showers and a chance of thunderstorms. Highs in the
upper 70s. Minimum RH 68 percent. Southwest winds less than
10 mph.
.TUESDAY NIGHT...Mostly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the lower 60s. Southeast
winds less than 10 mph.
.WEDNESDAY...Showers and a chance of thunderstorms. Highs in the
upper 70s. Minimum RH 66 percent. Southwest winds less than
10 mph.
*The AGL Mixing Height is calculated from an average elevation for
the entire Forecast Zone and should only be used as a guide.
For a specific AGL Mixing Height a Spot Forecast will be needed.
$$
TNZ072-220745-
Blount Smoky Mountains-
Including the city of Cades Cove
237 AM EDT Thu May 21 2026
Today Tonight Fri
Cloud Cover Mcldy Mcldy Mcldy
Temp (24h trend) 74-79 (-10) 62-67 (-1) 77-82
RH % (24h trend) 69-74 (+24) 95-100 (+4) 61-66
RH Recovery Excellent
AM 20FT Wnd (mph) Lgt/Var SE 11
PM 20FT Wnd (mph) Lgt/Var SE 7 S 10
Transport Wnd (mph) SW 6 SE 6 S 13
Mixing Hgt(ft-agl) 2020 440 3820
Vent Rate (mph-ft) 12120 2640 49660
Max Dispersion Early 10 Poor 3 Very Poor 30 Fair
Max Dispersion Late 10 Poor 5 Very Poor 41 Gen Good
Category Day 1 1 3
Max LVORI Early 7 7 6
Max LVORI Late 5 6 4
Precip Chance (%) 90 60 90
Precip Type Tstms Tstms Tstms
Precip Duration 5 2 6
Precip Amount 0.49 0.04 0.26
Precip Begin 8 AM Continuing Continuing
Precip End Continuing Continuing Continuing
Chance of Thunder (%) 50 20 50
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.FRIDAY NIGHT...Showers and a chance of thunderstorms. Lows in
the mid 60s. South winds 5 to 10 mph.
.SATURDAY...Showers and a chance of thunderstorms. Highs in the
upper 70s. Minimum RH 71 percent. South winds 5 to 10 mph.
.SATURDAY NIGHT...Mostly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the mid 60s. Southeast
winds less than 10 mph.
.SUNDAY...Showers and a chance of thunderstorms. Highs in the
lower 80s. Minimum RH 68 percent. Southwest winds less than
10 mph.
.SUNDAY NIGHT...Mostly cloudy with showers likely and a chance of
thunderstorms. Lows in the mid 60s. South winds less than 10 mph.
.MONDAY...Showers and a chance of thunderstorms. Highs in the
lower 80s. Minimum RH 66 percent. South winds less than 10 mph.
.MONDAY NIGHT...Mostly cloudy with showers likely and a chance of
thunderstorms. Lows in the mid 60s. Southeast winds less than
10 mph.
.TUESDAY...Showers and a chance of thunderstorms. Highs in the
lower 80s. Minimum RH 64 percent. Southwest winds less than
10 mph.
.TUESDAY NIGHT...Mostly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the mid 60s. Southeast
winds less than 10 mph.
.WEDNESDAY...Showers and a chance of thunderstorms. Highs in the
lower 80s. Minimum RH 62 percent. Southwest winds less than
10 mph.
*The AGL Mixing Height is calculated from an average elevation for
the entire Forecast Zone and should only be used as a guide.
For a specific AGL Mixing Height a Spot Forecast will be needed.
$$
TNZ087-220745-
Southeast Monroe-
Including the cities of Citico and Coker Creek
237 AM EDT Thu May 21 2026
Today Tonight Fri
Cloud Cover Mcldy Mcldy Mcldy
Temp (24h trend) 73-78 (-10) 61-66 (-1) 76-81
RH % (24h trend) 68-73 (+21) 95-100 (+4) 61-66
RH Recovery Excellent
AM 20FT Wnd (mph) Lgt/Var SE 11 G18
PM 20FT Wnd (mph) Lgt/Var SE 6 S 11 G18
Transport Wnd (mph) SW 7 SE 5 S 16
Mixing Hgt(ft-agl) 2130 440 3850
Vent Rate (mph-ft) 14910 2200 61600
Max Dispersion Early 10 Poor 3 Very Poor 38 Fair
Max Dispersion Late 12 Poor 5 Very Poor 56 Gen Good
Category Day 1 1 4
Max LVORI Early 7 7 6
Max LVORI Late 4 6 3
Precip Chance (%) 100 70 90
Precip Type Tstms Tstms Tstms
Precip Duration 4 2 6
Precip Amount 0.33 0.06 0.25
Precip Begin 8 AM Continuing Continuing
Precip End Continuing Continuing Continuing
Chance of Thunder (%) 50 20 50
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.FRIDAY NIGHT...Showers and a chance of thunderstorms. Lows in
the mid 60s. Southeast winds 5 to 10 mph.
.SATURDAY...Showers and a chance of thunderstorms. Highs in the
upper 70s. Minimum RH 74 percent. South winds less than 10 mph.
.SATURDAY NIGHT...Mostly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the mid 60s. Southeast
winds less than 10 mph.
.SUNDAY...Showers and a chance of thunderstorms. Highs around 80.
Minimum RH 71 percent. South winds less than 10 mph.
.SUNDAY NIGHT...Mostly cloudy with showers likely and a chance of
thunderstorms. Lows in the mid 60s. Southeast winds less than
10 mph.
.MONDAY...Showers and a chance of thunderstorms. Highs in the
upper 70s. Minimum RH 68 percent. South winds less than 10 mph.
.MONDAY NIGHT...Mostly cloudy with showers likely and a chance of
thunderstorms. Lows in the mid 60s. Southeast winds less than
10 mph.
.TUESDAY...Showers and a chance of thunderstorms. Highs around
80. Minimum RH 66 percent. South winds less than 10 mph.
.TUESDAY NIGHT...Mostly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the mid 60s. Southeast
winds less than 10 mph.
.WEDNESDAY...Showers and a chance of thunderstorms. Highs in the
lower 80s. Minimum RH 62 percent. Southwest winds less than
10 mph.
*The AGL Mixing Height is calculated from an average elevation for
the entire Forecast Zone and should only be used as a guide.
For a specific AGL Mixing Height a Spot Forecast will be needed.
$$
TNZ102-220745-
East Polk-
Including the cities of Big Frog Mountain, Ducktown,
and Turtletown
237 AM EDT Thu May 21 2026
Today Tonight Fri
Cloud Cover Mcldy Mcldy Pcldy
Temp (24h trend) 75-80 (-9) 61-66 (0) 77-82
RH % (24h trend) 70-75 (+23) 95-100 (+1) 65-70
RH Recovery Excellent
AM 20FT Wnd (mph) Lgt/Var SE 11
PM 20FT Wnd (mph) Lgt/Var SE 6 S 11
Transport Wnd (mph) W 7 SE 5 S 17
Mixing Hgt(ft-agl) 2240 430 3680
Vent Rate (mph-ft) 15680 2150 62560
Max Dispersion Early 9 Poor 3 Very Poor 54 Gen Good
Max Dispersion Late 14 Gen Poor 5 Very Poor 55 Gen Good
Category Day 2 1 4
Max LVORI Early 8 7 6
Max LVORI Late 4 7 3
Precip Chance (%) 90 70 90
Precip Type Tstms Tstms Tstms
Precip Duration 3 2 5
Precip Amount 0.31 0.12 0.28
Precip Begin 8 AM Continuing Continuing
Precip End Continuing Continuing Continuing
Chance of Thunder (%) 50 20 50
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.FRIDAY NIGHT...Showers and a chance of thunderstorms. Lows in
the mid 60s. Southeast winds 5 to 10 mph.
.SATURDAY...Showers and a chance of thunderstorms. Highs in the
upper 70s. Minimum RH 73 percent. South winds less than 10 mph.
.SATURDAY NIGHT...Mostly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the lower 60s. Southeast
winds less than 10 mph.
.SUNDAY...Showers and a chance of thunderstorms. Highs in the
lower 80s. Minimum RH 70 percent. South winds less than 10 mph.
.SUNDAY NIGHT...Mostly cloudy with showers likely and a chance of
thunderstorms. Lows in the mid 60s. Southeast winds less than
10 mph.
.MONDAY...Showers and a chance of thunderstorms. Highs in the
lower 80s. Minimum RH 68 percent. South winds less than 10 mph.
.MONDAY NIGHT...Mostly cloudy with showers likely and a chance of
thunderstorms. Lows in the mid 60s. Southeast winds less than
10 mph.
.TUESDAY...Showers and a chance of thunderstorms. Highs in the
lower 80s. Minimum RH 64 percent. South winds less than 10 mph.
.TUESDAY NIGHT...Mostly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the mid 60s. Southeast
winds less than 10 mph.
.WEDNESDAY...Partly sunny with showers likely and a chance of
thunderstorms. Highs in the lower 80s. Minimum RH 59 percent.
Southwest winds less than 10 mph.
*The AGL Mixing Height is calculated from an average elevation for
the entire Forecast Zone and should only be used as a guide.
For a specific AGL Mixing Height a Spot Forecast will be needed.
$$
NCZ060-220745-
Cherokee-
Including the cities of Andrews, Marble, Topton, Hiawasse Dam,
Murphy, Unaka, and Violet
237 AM EDT Thu May 21 2026
Today Tonight Fri
Cloud Cover Mcldy Mcldy Mcldy
Temp (24h trend) 75-80 (-9) 59-64 (-1) 76-81
RH % (24h trend) 66-71 (+18) 95-100 (+1) 62-67
RH Recovery Excellent
AM 20FT Wnd (mph) Lgt/Var SE 9
PM 20FT Wnd (mph) Lgt/Var Lgt/Var SE 10
Transport Wnd (mph) S 6 SE 6 S 16
Mixing Hgt(ft-agl) 2170 420 3740
Vent Rate (mph-ft) 13020 2520 59840
Max Dispersion Early 11 Poor 2 Very Poor 35 Fair
Max Dispersion Late 12 Poor 4 Very Poor 51 Gen Good
Category Day 1 1 3
Max LVORI Early 9 7 8
Max LVORI Late 4 8 3
Precip Chance (%) 90 70 90
Precip Type Tstms Tstms Tstms
Precip Duration 3 2 6
Precip Amount 0.41 0.13 0.27
Precip Begin 8 AM Continuing Continuing
Precip End Continuing Continuing Continuing
Chance of Thunder (%) 60 20 50
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.FRIDAY NIGHT...Showers and a chance of thunderstorms. Lows in
the lower 60s. Southeast winds 5 to 10 mph.
.SATURDAY...Showers and a chance of thunderstorms. Highs in the
upper 70s. Minimum RH 73 percent. South winds less than 10 mph.
.SATURDAY NIGHT...Mostly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the lower 60s. Southeast
winds less than 10 mph.
.SUNDAY...Showers and a chance of thunderstorms. Highs around 80.
Minimum RH 70 percent. South winds less than 10 mph.
.SUNDAY NIGHT...Mostly cloudy with showers likely and a chance of
thunderstorms. Lows in the lower 60s. Southeast winds less than
10 mph.
.MONDAY...Showers and a chance of thunderstorms. Highs around 80.
Minimum RH 68 percent. South winds less than 10 mph.
.MONDAY NIGHT...Mostly cloudy with showers likely and a chance of
thunderstorms. Lows in the lower 60s. Southeast winds less than
10 mph.
.TUESDAY...Showers and a chance of thunderstorms. Highs in the
lower 80s. Minimum RH 65 percent. South winds less than 10 mph.
.TUESDAY NIGHT...Mostly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the lower 60s. Southeast
winds less than 10 mph.
.WEDNESDAY...Partly sunny with showers likely and a chance of
thunderstorms. Highs in the lower 80s. Minimum RH 61 percent.
Southwest winds less than 10 mph.
*The AGL Mixing Height is calculated from an average elevation for
the entire Forecast Zone and should only be used as a guide.
For a specific AGL Mixing Height a Spot Forecast will be needed.
$$
NCZ061-220745-
Clay-
Including the cities of Shooting Creek, Brasstown, Hayesville,
and Tusquitee
237 AM EDT Thu May 21 2026
Today Tonight Fri
Cloud Cover Mcldy Mcldy Mcldy
Temp (24h trend) 73-78 (-7) 58-63 (-1) 72-77
RH % (24h trend) 72-77 (+19) 95-100 (+4) 70-75
RH Recovery Excellent
AM 20FT Wnd (mph) Lgt/Var SE 10
PM 20FT Wnd (mph) Lgt/Var SE 6 SE 8
Transport Wnd (mph) SW 7 S 5 S 14
Mixing Hgt(ft-agl) 2450 420 3150
Vent Rate (mph-ft) 17150 2100 44100
Max Dispersion Early 16 Gen Poor 3 Very Poor 27 Fair
Max Dispersion Late 12 Poor 4 Very Poor 38 Fair
Category Day 2 1 3
Max LVORI Early 8 6 8
Max LVORI Late 4 7 4
Precip Chance (%) 90 70 90
Precip Type Tstms Tstms Tstms
Precip Duration 3 2 6
Precip Amount 0.43 0.08 0.30
Precip Begin 8 AM Continuing Continuing
Precip End Continuing Continuing Continuing
Chance of Thunder (%) 50 20 50
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.FRIDAY NIGHT...Showers and a chance of thunderstorms. Lows in
the lower 60s. Southeast winds 5 to 10 mph.
.SATURDAY...Showers and a chance of thunderstorms. Highs in the
mid 70s. Minimum RH 79 percent. South winds less than 10 mph.
.SATURDAY NIGHT...Mostly cloudy with showers likely and a slight
chance of thunderstorms. Lows in the lower 60s. Southeast winds
less than 10 mph.
.SUNDAY...Showers and a chance of thunderstorms. Highs in the
upper 70s. Minimum RH 76 percent. South winds less than 10 mph.
.SUNDAY NIGHT...Mostly cloudy with showers likely and a chance of
thunderstorms. Lows in the lower 60s. Southeast winds less than
10 mph.
.MONDAY...Showers and a chance of thunderstorms. Highs in the
upper 70s. Minimum RH 74 percent. South winds less than 10 mph.
.MONDAY NIGHT...Showers and a chance of thunderstorms. Lows in
the lower 60s. Southeast winds less than 10 mph.
.TUESDAY...Showers and a chance of thunderstorms. Highs in the
upper 70s. Minimum RH 72 percent. South winds less than 10 mph.
.TUESDAY NIGHT...Mostly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the lower 60s. East winds
less than 10 mph.
.WEDNESDAY...Partly sunny with showers likely and a chance of
thunderstorms. Highs in the upper 70s. Minimum RH 68 percent.
Southwest winds less than 10 mph.
*The AGL Mixing Height is calculated from an average elevation for
the entire Forecast Zone and should only be used as a guide.
For a specific AGL Mixing Height a Spot Forecast will be needed.
$$
TNZ015-220745-
Hancock-
Including the cities of Evanston, Sneedville, Treadway,
and Kyles Ford
237 AM EDT Thu May 21 2026
Today Tonight Fri
Cloud Cover Mcldy Mcldy Mcldy
Temp (24h trend) 75-80 (-11) 58-63 (-1) 77-82
RH % (24h trend) 74-79 (+33) 95-100 (0) 70-75
RH Recovery Excellent
AM 20FT Wnd (mph) Lgt/Var SE 5
PM 20FT Wnd (mph) Lgt/Var Lgt/Var SE 5
Transport Wnd (mph) W 6 SE 7 S 13
Mixing Hgt(ft-agl) 1910 440 2560
Vent Rate (mph-ft) 11460 3080 33280
Max Dispersion Early 9 Poor 3 Very Poor 18 Gen Poor
Max Dispersion Late 9 Poor 3 Very Poor 29 Fair
Category Day 1 1 3
Max LVORI Early 9 8 9
Max LVORI Late 4 9 4
Precip Chance (%) 100 50 100
Precip Type Tstms Tstms Tstms
Precip Duration 6 1 5
Precip Amount 0.37 0.02 0.32
Precip Begin 8 AM Continuing Continuing
Precip End Continuing Continuing Continuing
Chance of Thunder (%) 40 20 50
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.FRIDAY NIGHT...Showers and a chance of thunderstorms. Lows in
the lower 60s. Southeast winds less than 10 mph.
.SATURDAY...Showers and a chance of thunderstorms. Highs in the
upper 70s. Minimum RH 77 percent. South winds less than 10 mph.
.SATURDAY NIGHT...Mostly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows around 60. South winds less
than 10 mph.
.SUNDAY...Showers and a chance of thunderstorms. Highs in the
lower 80s. Minimum RH 69 percent. Southwest winds less than
10 mph.
.SUNDAY NIGHT...Mostly cloudy with showers likely and a chance of
thunderstorms. Lows in the lower 60s. Light and variable wind.
.MONDAY...Showers and a chance of thunderstorms. Highs in the
lower 80s. Minimum RH 69 percent. Southwest winds less than
10 mph.
.MONDAY NIGHT...Mostly cloudy with showers likely and a chance of
thunderstorms. Lows in the lower 60s. Light and variable wind.
.TUESDAY...Showers and a chance of thunderstorms. Highs in the
lower 80s. Minimum RH 67 percent. Southwest winds less than
10 mph.
.TUESDAY NIGHT...Mostly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the lower 60s. Light and
variable wind.
.WEDNESDAY...Showers and a chance of thunderstorms. Highs in the
lower 80s. Minimum RH 65 percent. Southwest winds less than
10 mph.
*The AGL Mixing Height is calculated from an average elevation for
the entire Forecast Zone and should only be used as a guide.
For a specific AGL Mixing Height a Spot Forecast will be needed.
$$
TNZ016-220745-
Hawkins-
Including the city of Mooresburg
237 AM EDT Thu May 21 2026
Today Tonight Fri
Cloud Cover Mcldy Mcldy Mcldy
Temp (24h trend) 75-80 (-11) 59-64 (-1) 78-83
RH % (24h trend) 73-78 (+31) 95-100 (0) 68-73
RH Recovery Excellent
AM 20FT Wnd (mph) Lgt/Var SE 5
PM 20FT Wnd (mph) Lgt/Var Lgt/Var SE 7
Transport Wnd (mph) W 5 SE 7 S 12
Mixing Hgt(ft-agl) 1960 400 2400
Vent Rate (mph-ft) 9800 2800 28800
Max Dispersion Early 8 Poor 3 Very Poor 16 Gen Poor
Max Dispersion Late 9 Poor 3 Very Poor 24 Fair
Category Day 1 1 2
Max LVORI Early 9 7 9
Max LVORI Late 4 9 4
Precip Chance (%) 90 40 90
Precip Type Tstms Tstms Tstms
Precip Duration 6 1 5
Precip Amount 0.41 0.01 0.22
Precip Begin 8 AM Continuing Continuing
Precip End Continuing Continuing Continuing
Chance of Thunder (%) 40 20 40
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.FRIDAY NIGHT...Showers and a chance of thunderstorms. Lows in
the lower 60s. Southeast winds less than 10 mph.
.SATURDAY...Showers and a chance of thunderstorms. Highs in the
upper 70s. Minimum RH 78 percent. South winds less than 10 mph.
.SATURDAY NIGHT...Mostly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows around 60. South winds less
than 10 mph.
.SUNDAY...Showers and a chance of thunderstorms. Highs in the
lower 80s. Minimum RH 71 percent. Southwest winds less than
10 mph.
.SUNDAY NIGHT...Mostly cloudy with a chance of showers and
thunderstorms. Lows in the lower 60s. South winds less than
10 mph.
.MONDAY...Showers and a chance of thunderstorms. Highs in the
lower 80s. Minimum RH 71 percent. Southwest winds less than
10 mph.
.MONDAY NIGHT...Mostly cloudy with showers likely and a chance of
thunderstorms. Lows in the lower 60s. Light and variable wind.
.TUESDAY...Showers and a chance of thunderstorms. Highs in the
lower 80s. Minimum RH 70 percent. West winds less than 10 mph.
.TUESDAY NIGHT...Mostly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the lower 60s. Light and
variable wind.
.WEDNESDAY...Showers and a chance of thunderstorms. Highs in the
lower 80s. Minimum RH 67 percent. Southwest winds less than
10 mph.
*The AGL Mixing Height is calculated from an average elevation for
the entire Forecast Zone and should only be used as a guide.
For a specific AGL Mixing Height a Spot Forecast will be needed.
$$
TNZ017-220745-
Sullivan-
Including the cities of Kingsport, Bristol TN,
and South Holston Dam
237 AM EDT Thu May 21 2026
Today Tonight Fri
Cloud Cover Mcldy Mcldy Mcldy
Temp (24h trend) 75-80 (-10) 60-65 (-1) 76-81
RH % (24h trend) 69-74 (+29) 95-100 (+4) 60-65
RH Recovery Excellent
AM 20FT Wnd (mph) Lgt/Var SE 10
PM 20FT Wnd (mph) Lgt/Var E 7 SE 11
Transport Wnd (mph) W 5 SE 8 SE 12
Mixing Hgt(ft-agl) 2230 400 2670
Vent Rate (mph-ft) 11150 3200 32040
Max Dispersion Early 10 Poor 3 Very Poor 19 Gen Poor
Max Dispersion Late 10 Poor 4 Very Poor 28 Fair
Category Day 1 1 3
Max LVORI Early 7 6 8
Max LVORI Late 4 8 3
Precip Chance (%) 90 60 90
Precip Type Tstms Tstms Tstms
Precip Duration 5 1 5
Precip Amount 0.41 0.03 0.12
Precip Begin 8 AM Continuing Continuing
Precip End Continuing Continuing Continuing
Chance of Thunder (%) 40 20 30
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.FRIDAY NIGHT...Showers and a slight chance of thunderstorms.
Lows in the lower 60s. Southeast winds 5 to 10 mph.
.SATURDAY...Showers and a chance of thunderstorms. Highs in the
upper 70s. Minimum RH 72 percent. South winds less than 10 mph.
.SATURDAY NIGHT...Mostly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the lower 60s. Southeast
winds less than 10 mph.
.SUNDAY...Showers and a chance of thunderstorms. Highs in the
lower 80s. Minimum RH 66 percent. Southwest winds less than
10 mph.
.SUNDAY NIGHT...Mostly cloudy with a chance of showers and
thunderstorms. Lows in the lower 60s. South winds less than
10 mph.
.MONDAY...Showers and a chance of thunderstorms. Highs in the
lower 80s. Minimum RH 67 percent. Southwest winds less than
10 mph.
.MONDAY NIGHT...Mostly cloudy with a chance of showers and
thunderstorms. Lows in the lower 60s. Southeast winds less than
10 mph.
.TUESDAY...Showers and a chance of thunderstorms. Highs in the
lower 80s. Minimum RH 66 percent. Southwest winds less than
10 mph.
.TUESDAY NIGHT...Mostly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the lower 60s. South
winds less than 10 mph.
.WEDNESDAY...Showers and a chance of thunderstorms. Highs in the
lower 80s. Minimum RH 65 percent. Southwest winds less than
10 mph.
*The AGL Mixing Height is calculated from an average elevation for
the entire Forecast Zone and should only be used as a guide.
For a specific AGL Mixing Height a Spot Forecast will be needed.
$$
TNZ046-220745-
Northwest Carter-
Including the city of Elizabethton
237 AM EDT Thu May 21 2026
Today Tonight Fri
Cloud Cover Mcldy Mcldy Mcldy
Temp (24h trend) 75-80 (-9) 58-63 (-1) 74-79
RH % (24h trend) 66-71 (+26) 95-100 (+5) 58-63
RH Recovery Excellent
AM 20FT Wnd (mph) Lgt/Var SE 9
PM 20FT Wnd (mph) Lgt/Var E 6 SE 10
Transport Wnd (mph) W 6 E 5 S 14
Mixing Hgt(ft-agl) 2260 400 2380
Vent Rate (mph-ft) 13560 2000 33320
Max Dispersion Early 11 Poor 4 Very Poor 19 Gen Poor
Max Dispersion Late 12 Poor 5 Very Poor 26 Fair
Category Day 2 1 3
Max LVORI Early 7 6 7
Max LVORI Late 4 6 3
Precip Chance (%) 100 60 80
Precip Type Tstms Tstms Tstms
Precip Duration 5 2 5
Precip Amount 0.55 0.05 0.11
Precip Begin 8 AM Continuing Continuing
Precip End Continuing Continuing Continuing
Chance of Thunder (%) 50 20 30
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.FRIDAY NIGHT...Showers and a slight chance of thunderstorms.
Lows around 60. Southeast winds 5 to 10 mph.
.SATURDAY...Showers and a chance of thunderstorms. Highs in the
upper 70s. Minimum RH 70 percent. South winds less than 10 mph.
.SATURDAY NIGHT...Mostly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows around 60. Southeast winds
less than 10 mph.
.SUNDAY...Showers and a chance of thunderstorms. Highs in the
lower 80s. Minimum RH 65 percent. Southwest winds less than
10 mph.
.SUNDAY NIGHT...Mostly cloudy with showers likely and a chance of
thunderstorms. Lows in the lower 60s. Southeast winds less than
10 mph.
.MONDAY...Showers and a chance of thunderstorms. Highs around 80.
Minimum RH 66 percent. Southwest winds less than 10 mph.
.MONDAY NIGHT...Mostly cloudy with a chance of showers and
thunderstorms. Lows in the lower 60s. Southeast winds less than
10 mph.
.TUESDAY...Showers and a chance of thunderstorms. Highs in the
lower 80s. Minimum RH 65 percent. Southwest winds less than
10 mph.
.TUESDAY NIGHT...Mostly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the lower 60s. Light and
variable wind.
.WEDNESDAY...Showers and a chance of thunderstorms. Highs around
80. Minimum RH 64 percent. Southwest winds less than 10 mph.
*The AGL Mixing Height is calculated from an average elevation for
the entire Forecast Zone and should only be used as a guide.
For a specific AGL Mixing Height a Spot Forecast will be needed.
$$
TNZ044-220745-
Washington TN-
Including the city of Johnson City
237 AM EDT Thu May 21 2026
Today Tonight Fri
Cloud Cover Mcldy Mcldy Mcldy
Temp (24h trend) 75-80 (-10) 60-65 (-1) 76-81
RH % (24h trend) 66-71 (+26) 95-100 (+7) 58-63
RH Recovery Excellent
AM 20FT Wnd (mph) Lgt/Var SE 8
PM 20FT Wnd (mph) Lgt/Var E 5 SE 11
Transport Wnd (mph) W 6 E 6 S 14
Mixing Hgt(ft-agl) 2270 420 2960
Vent Rate (mph-ft) 13620 2520 41440
Max Dispersion Early 11 Poor 3 Very Poor 19 Gen Poor
Max Dispersion Late 10 Poor 4 Very Poor 35 Fair
Category Day 2 1 3
Max LVORI Early 7 6 7
Max LVORI Late 4 6 3
Precip Chance (%) 100 60 80
Precip Type Tstms Tstms Tstms
Precip Duration 5 2 5
Precip Amount 0.47 0.05 0.15
Precip Begin 8 AM Continuing Continuing
Precip End Continuing Continuing Continuing
Chance of Thunder (%) 40 20 30
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.FRIDAY NIGHT...Showers and a slight chance of thunderstorms.
Lows in the lower 60s. Southeast winds 5 to 10 mph.
.SATURDAY...Showers and a chance of thunderstorms. Highs in the
upper 70s. Minimum RH 70 percent. South winds 5 to 10 mph.
.SATURDAY NIGHT...Mostly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the lower 60s. Southeast
winds less than 10 mph.
.SUNDAY...Showers and a chance of thunderstorms. Highs in the
lower 80s. Minimum RH 65 percent. Southwest winds less than
10 mph.
.SUNDAY NIGHT...Mostly cloudy with showers likely and a chance of
thunderstorms. Lows in the lower 60s. South winds less than
10 mph.
.MONDAY...Showers and a chance of thunderstorms. Highs in the
lower 80s. Minimum RH 66 percent. Southwest winds less than
10 mph.
.MONDAY NIGHT...Mostly cloudy with a chance of showers and
thunderstorms. Lows in the lower 60s. Southeast winds less than
10 mph.
.TUESDAY...Showers and a chance of thunderstorms. Highs in the
lower 80s. Minimum RH 64 percent. West winds less than 10 mph.
.TUESDAY NIGHT...Mostly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the lower 60s. Light and
variable wind.
.WEDNESDAY...Showers and a chance of thunderstorms. Highs in the
lower 80s. Minimum RH 63 percent. Southwest winds less than
10 mph.
*The AGL Mixing Height is calculated from an average elevation for
the entire Forecast Zone and should only be used as a guide.
For a specific AGL Mixing Height a Spot Forecast will be needed.
$$
TNZ042-220745-
Northwest Greene-
Including the city of Greeneville
237 AM EDT Thu May 21 2026
Today Tonight Fri
Cloud Cover Mcldy Mcldy Mcldy
Temp (24h trend) 75-80 (-11) 60-65 (-1) 77-82
RH % (24h trend) 68-73 (+27) 95-100 (+2) 60-65
RH Recovery Excellent
AM 20FT Wnd (mph) Lgt/Var SE 8
PM 20FT Wnd (mph) Lgt/Var E 6 SE 8
Transport Wnd (mph) SW 5 E 6 S 13
Mixing Hgt(ft-agl) 2060 390 2500
Vent Rate (mph-ft) 10300 2340 32500
Max Dispersion Early 8 Poor 3 Very Poor 20 Gen Poor
Max Dispersion Late 8 Poor 4 Very Poor 30 Fair
Category Day 1 1 3
Max LVORI Early 7 6 8
Max LVORI Late 4 7 3
Precip Chance (%) 100 40 90
Precip Type Tstms Tstms Tstms
Precip Duration 5 1 5
Precip Amount 0.44 0.02 0.16
Precip Begin 8 AM Continuing Continuing
Precip End Continuing Continuing Continuing
Chance of Thunder (%) 50 20 40
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.FRIDAY NIGHT...Showers and a slight chance of thunderstorms.
Lows in the lower 60s. Southeast winds less than 10 mph.
.SATURDAY...Showers and a chance of thunderstorms. Highs around
80. Minimum RH 72 percent. South winds less than 10 mph.
.SATURDAY NIGHT...Mostly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the lower 60s. Southeast
winds less than 10 mph.
.SUNDAY...Showers and a chance of thunderstorms. Highs in the
lower 80s. Minimum RH 67 percent. Southwest winds less than
10 mph.
.SUNDAY NIGHT...Mostly cloudy with showers likely and a chance of
thunderstorms. Lows in the lower 60s. Southeast winds less than
10 mph.
.MONDAY...Showers and a chance of thunderstorms. Highs in the
lower 80s. Minimum RH 67 percent. Southwest winds less than
10 mph.
.MONDAY NIGHT...Mostly cloudy with a chance of showers and
thunderstorms. Lows in the lower 60s. Southeast winds less than
10 mph.
.TUESDAY...Showers and a chance of thunderstorms. Highs in the
lower 80s. Minimum RH 66 percent. West winds less than 10 mph.
.TUESDAY NIGHT...Mostly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the lower 60s. South
winds less than 10 mph.
.WEDNESDAY...Showers and a chance of thunderstorms. Highs in the
lower 80s. Minimum RH 64 percent. Southwest winds less than
10 mph.
*The AGL Mixing Height is calculated from an average elevation for
the entire Forecast Zone and should only be used as a guide.
For a specific AGL Mixing Height a Spot Forecast will be needed.
$$
TNZ038-220745-
Grainger-
Including the city of Bean Station
237 AM EDT Thu May 21 2026
Today Tonight Fri
Cloud Cover Mcldy Mcldy Mcldy
Temp (24h trend) 75-80 (-11) 60-65 (-1) 78-83
RH % (24h trend) 75-80 (+33) 95-100 (0) 71-76
RH Recovery Excellent
AM 20FT Wnd (mph) Lgt/Var SE 5
PM 20FT Wnd (mph) Lgt/Var Lgt/Var Lgt/Var
Transport Wnd (mph) SW 6 E 6 S 10
Mixing Hgt(ft-agl) 2110 380 2550
Vent Rate (mph-ft) 12660 2280 25500
Max Dispersion Early 10 Poor 3 Very Poor 15 Gen Poor
Max Dispersion Late 10 Poor 3 Very Poor 22 Fair
Category Day 1 1 2
Max LVORI Early 9 8 9
Max LVORI Late 4 9 4
Precip Chance (%) 100 50 90
Precip Type Tstms Tstms Tstms
Precip Duration 5 1 5
Precip Amount 0.39 0.02 0.33
Precip Begin 8 AM Continuing Continuing
Precip End Continuing Continuing Continuing
Chance of Thunder (%) 50 20 50
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.FRIDAY NIGHT...Showers and a chance of thunderstorms. Lows in
the lower 60s. Southeast winds less than 10 mph.
.SATURDAY...Showers and a chance of thunderstorms. Highs around
80. Minimum RH 79 percent. Southwest winds less than 10 mph.
.SATURDAY NIGHT...Mostly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the lower 60s. South
winds less than 10 mph.
.SUNDAY...Showers and a chance of thunderstorms. Highs in the
lower 80s. Minimum RH 72 percent. Southwest winds less than
10 mph.
.SUNDAY NIGHT...Mostly cloudy with showers likely and a chance of
thunderstorms. Lows in the lower 60s. Light and variable wind.
.MONDAY...Showers and a chance of thunderstorms. Highs in the
lower 80s. Minimum RH 70 percent. Southwest winds less than
10 mph.
.MONDAY NIGHT...Mostly cloudy with showers likely and a chance of
thunderstorms. Lows in the lower 60s. Light and variable wind.
.TUESDAY...Showers and a chance of thunderstorms. Highs in the
lower 80s. Minimum RH 69 percent. Southwest winds less than
10 mph.
.TUESDAY NIGHT...Mostly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the lower 60s. Light and
variable wind.
.WEDNESDAY...Showers and a chance of thunderstorms. Highs in the
lower 80s. Minimum RH 66 percent. Southwest winds less than
10 mph.
*The AGL Mixing Height is calculated from an average elevation for
the entire Forecast Zone and should only be used as a guide.
For a specific AGL Mixing Height a Spot Forecast will be needed.
$$
TNZ039-220745-
Hamblen-
Including the cities of Alpha, Morristown, and Russellville
237 AM EDT Thu May 21 2026
Today Tonight Fri
Cloud Cover Mcldy Mcldy Mcldy
Temp (24h trend) 75-80 (-11) 60-65 (-1) 78-83
RH % (24h trend) 73-78 (+30) 95-100 (0) 69-74
RH Recovery Excellent
AM 20FT Wnd (mph) Lgt/Var Lgt/Var
PM 20FT Wnd (mph) Lgt/Var Lgt/Var SE 5
Transport Wnd (mph) W 5 E 7 S 12
Mixing Hgt(ft-agl) 2200 390 2400
Vent Rate (mph-ft) 11000 2730 28800
Max Dispersion Early 9 Poor 4 Very Poor 17 Gen Poor
Max Dispersion Late 10 Poor 3 Very Poor 23 Fair
Category Day 1 1 2
Max LVORI Early 10 7 9
Max LVORI Late 4 9 4
Precip Chance (%) 90 40 90
Precip Type Tstms Tstms Tstms
Precip Duration 6 1 5
Precip Amount 0.30 0.01 0.25
Precip Begin 8 AM Continuing Continuing
Precip End Continuing Continuing Continuing
Chance of Thunder (%) 50 20 50
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.FRIDAY NIGHT...Showers and a chance of thunderstorms. Lows in
the lower 60s. Southeast winds less than 10 mph.
.SATURDAY...Showers and a chance of thunderstorms. Highs around
80. Minimum RH 78 percent. Southwest winds less than 10 mph.
.SATURDAY NIGHT...Mostly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the lower 60s. Light and
variable wind.
.SUNDAY...Showers and a chance of thunderstorms. Highs in the
lower 80s. Minimum RH 71 percent. Southwest winds less than
10 mph.
.SUNDAY NIGHT...Mostly cloudy with showers likely and a chance of
thunderstorms. Lows in the lower 60s. Light and variable wind.
.MONDAY...Showers and a chance of thunderstorms. Highs in the
lower 80s. Minimum RH 71 percent. Southwest winds less than
10 mph.
.MONDAY NIGHT...Mostly cloudy with showers likely and a chance of
thunderstorms. Lows in the lower 60s. Light and variable wind.
.TUESDAY...Showers and a chance of thunderstorms. Highs in the
lower 80s. Minimum RH 70 percent. West winds less than 10 mph.
.TUESDAY NIGHT...Mostly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the lower 60s. Light and
variable wind.
.WEDNESDAY...Showers and a chance of thunderstorms. Highs in the
lower 80s. Minimum RH 66 percent. Southwest winds less than
10 mph.
*The AGL Mixing Height is calculated from an average elevation for
the entire Forecast Zone and should only be used as a guide.
For a specific AGL Mixing Height a Spot Forecast will be needed.
$$
TNZ040-220745-
Northwest Cocke-
Including the cities of Bybee and Newport
237 AM EDT Thu May 21 2026
Today Tonight Fri
Cloud Cover Mcldy Mcldy Mcldy
Temp (24h trend) 75-80 (-10) 62-67 (-1) 78-83
RH % (24h trend) 72-77 (+28) 95-100 (+4) 63-68
RH Recovery Excellent
AM 20FT Wnd (mph) Lgt/Var SE 9
PM 20FT Wnd (mph) Lgt/Var Lgt/Var SE 8
Transport Wnd (mph) W 3 E 6 S 12
Mixing Hgt(ft-agl) 2100 390 3020
Vent Rate (mph-ft) 6300 2340 36240
Max Dispersion Early 7 Poor 3 Very Poor 17 Gen Poor
Max Dispersion Late 8 Poor 3 Very Poor 29 Fair
Category Day 1 1 3
Max LVORI Early 9 6 9
Max LVORI Late 4 6 3
Precip Chance (%) 90 40 90
Precip Type Tstms Tstms Tstms
Precip Duration 4 1 6
Precip Amount 0.43 0.02 0.19
Precip Begin 8 AM Continuing Continuing
Precip End Continuing Continuing Continuing
Chance of Thunder (%) 50 20 40
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.FRIDAY NIGHT...Showers and a chance of thunderstorms. Lows in
the mid 60s. Southeast winds less than 10 mph.
.SATURDAY...Showers and a chance of thunderstorms. Highs around
80. Minimum RH 72 percent. Southwest winds less than 10 mph.
.SATURDAY NIGHT...Mostly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the mid 60s. South winds
less than 10 mph.
.SUNDAY...Showers and a chance of thunderstorms. Highs in the
lower 80s. Minimum RH 68 percent. West winds less than 10 mph.
.SUNDAY NIGHT...Mostly cloudy with showers likely and a chance of
thunderstorms. Lows in the mid 60s. South winds less than 10 mph.
.MONDAY...Showers and a chance of thunderstorms. Highs in the
lower 80s. Minimum RH 67 percent. Southwest winds less than
10 mph.
.MONDAY NIGHT...Mostly cloudy with showers likely and a chance of
thunderstorms. Lows in the mid 60s. South winds less than 10 mph.
.TUESDAY...Showers and a chance of thunderstorms. Highs in the
lower 80s. Minimum RH 66 percent. West winds less than 10 mph.
.TUESDAY NIGHT...Mostly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the mid 60s. Light and
variable wind.
.WEDNESDAY...Showers and a chance of thunderstorms. Highs in the
lower 80s. Minimum RH 64 percent. West winds less than 10 mph.
*The AGL Mixing Height is calculated from an average elevation for
the entire Forecast Zone and should only be used as a guide.
For a specific AGL Mixing Height a Spot Forecast will be needed.
$$
TNZ070-220745-
Jefferson-
Including the cities of Jefferson City, Strawberry Plains,
Chestnut Hill, Dandridge, and White Pine
237 AM EDT Thu May 21 2026
Today Tonight Fri
Cloud Cover Mcldy Mcldy Mcldy
Temp (24h trend) 75-80 (-11) 62-67 (-1) 79-84
RH % (24h trend) 74-79 (+29) 95-100 (+1) 69-74
RH Recovery Excellent
AM 20FT Wnd (mph) Lgt/Var Lgt/Var
PM 20FT Wnd (mph) Lgt/Var Lgt/Var Lgt/Var
Transport Wnd (mph) W 5 E 5 S 8
Mixing Hgt(ft-agl) 2190 360 2570
Vent Rate (mph-ft) 10950 1800 20560
Max Dispersion Early 9 Poor 5 Very Poor 11 Poor
Max Dispersion Late 10 Poor 2 Very Poor 18 Gen Poor
Category Day 1 1 2
Max LVORI Early 10 7 10
Max LVORI Late 5 9 4
Precip Chance (%) 90 40 90
Precip Type Tstms Tstms Tstms
Precip Duration 5 1 6
Precip Amount 0.29 0.01 0.35
Precip Begin 8 AM Continuing Continuing
Precip End Continuing Continuing Continuing
Chance of Thunder (%) 50 20 50
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.FRIDAY NIGHT...Showers and a chance of thunderstorms. Lows in
the mid 60s. Southeast winds less than 10 mph.
.SATURDAY...Showers and a chance of thunderstorms. Highs around
80. Minimum RH 76 percent. Southwest winds less than 10 mph.
.SATURDAY NIGHT...Mostly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the lower 60s. Southwest
winds less than 10 mph.
.SUNDAY...Showers and a chance of thunderstorms. Highs in the
lower 80s. Minimum RH 71 percent. Southwest winds less than
10 mph.
.SUNDAY NIGHT...Mostly cloudy with showers likely and a chance of
thunderstorms. Lows in the mid 60s. Light and variable wind.
.MONDAY...Showers and a chance of thunderstorms. Highs in the
lower 80s. Minimum RH 70 percent. West winds less than 10 mph.
.MONDAY NIGHT...Mostly cloudy with showers likely and a chance of
thunderstorms. Lows in the mid 60s. Light and variable wind.
.TUESDAY...Showers and a chance of thunderstorms. Highs in the
lower 80s. Minimum RH 68 percent. West winds less than 10 mph.
.TUESDAY NIGHT...Mostly cloudy with showers likely and a slight
chance of thunderstorms. Lows in the mid 60s. Light and variable
wind.
.WEDNESDAY...Showers and a chance of thunderstorms. Highs in the
lower 80s. Minimum RH 66 percent. Southwest winds less than
10 mph.
*The AGL Mixing Height is calculated from an average elevation for
the entire Forecast Zone and should only be used as a guide.
For a specific AGL Mixing Height a Spot Forecast will be needed.
$$
TNZ035-220745-
Morgan-
Including the cities of Pine Orchard, High Point, and Petros
237 AM EDT Thu May 21 2026
Today Tonight Fri
Cloud Cover Mcldy Mcldy Mcldy
Temp (24h trend) 73-78 (-10) 59-64 (0) 76-81
RH % (24h trend) 76-81 (+22) 95-100 (0) 72-77
RH Recovery Excellent
AM 20FT Wnd (mph) Lgt/Var S 8
PM 20FT Wnd (mph) Lgt/Var E 5 S 10
Transport Wnd (mph) SW 6 SE 7 S 17
Mixing Hgt(ft-agl) 1830 420 3020
Vent Rate (mph-ft) 10980 2940 51340
Max Dispersion Early 9 Poor 3 Very Poor 33 Fair
Max Dispersion Late 10 Poor 4 Very Poor 48 Gen Good
Category Day 1 1 3
Max LVORI Early 10 8 9
Max LVORI Late 5 9 4
Precip Chance (%) 90 70 90
Precip Type Tstms Tstms Tstms
Precip Duration 5 2 6
Precip Amount 0.40 0.06 0.48
Precip Begin 8 AM Continuing Continuing
Precip End Continuing Continuing Continuing
Chance of Thunder (%) 50 20 50
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.FRIDAY NIGHT...Showers and a chance of thunderstorms. Lows in
the lower 60s. South winds 5 to 10 mph.
.SATURDAY...Showers and a chance of thunderstorms. Highs in the
upper 70s. Minimum RH 79 percent. Southwest winds 5 to 10 mph.
.SATURDAY NIGHT...Mostly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the lower 60s. South
winds less than 10 mph.
.SUNDAY...Showers and a chance of thunderstorms. Highs in the
lower 80s. Minimum RH 76 percent. South winds less than 10 mph.
.SUNDAY NIGHT...Mostly cloudy with showers likely and a chance of
thunderstorms. Lows in the lower 60s. South winds less than
10 mph.
.MONDAY...Showers and a chance of thunderstorms. Highs around 80.
Minimum RH 75 percent. South winds less than 10 mph.
.MONDAY NIGHT...Mostly cloudy with showers likely and a chance of
thunderstorms. Lows in the lower 60s. South winds less than
10 mph.
.TUESDAY...Showers and a chance of thunderstorms. Highs in the
lower 80s. Minimum RH 73 percent. South winds less than 10 mph.
.TUESDAY NIGHT...Mostly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the lower 60s. South
winds less than 10 mph.
.WEDNESDAY...Showers and a chance of thunderstorms. Highs in the
lower 80s. Minimum RH 67 percent. South winds less than 10 mph.
*The AGL Mixing Height is calculated from an average elevation for
the entire Forecast Zone and should only be used as a guide.
For a specific AGL Mixing Height a Spot Forecast will be needed.
$$
TNZ012-220745-
Scott TN-
Including the cities of Big South Fork National, Oneida,
Smokey Junction, Elgin, Huntsville, Norma, and Slick Rock
237 AM EDT Thu May 21 2026
Today Tonight Fri
Cloud Cover Mcldy Mcldy Mcldy
Temp (24h trend) 73-78 (-9) 59-64 (-1) 76-81
RH % (24h trend) 74-79 (+20) 95-100 (0) 68-73
RH Recovery Excellent
AM 20FT Wnd (mph) Lgt/Var S 8
PM 20FT Wnd (mph) Lgt/Var Lgt/Var S 9
Transport Wnd (mph) S 6 SE 8 S 18
Mixing Hgt(ft-agl) 1850 430 3020
Vent Rate (mph-ft) 11100 3440 54360
Max Dispersion Early 9 Poor 3 Very Poor 24 Fair
Max Dispersion Late 10 Poor 4 Very Poor 48 Gen Good
Category Day 1 1 3
Max LVORI Early 9 7 7
Max LVORI Late 5 8 4
Precip Chance (%) 100 60 90
Precip Type Tstms Tstms Tstms
Precip Duration 6 2 6
Precip Amount 0.45 0.08 0.38
Precip Begin 8 AM Continuing Continuing
Precip End Continuing Continuing Continuing
Chance of Thunder (%) 40 20 50
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.FRIDAY NIGHT...Showers and a chance of thunderstorms. Lows in
the lower 60s. South winds 5 to 10 mph.
.SATURDAY...Showers and a chance of thunderstorms. Highs in the
upper 70s. Minimum RH 74 percent. Southwest winds 5 to 10 mph.
.SATURDAY NIGHT...Mostly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the lower 60s. South
winds less than 10 mph.
.SUNDAY...Showers and a chance of thunderstorms. Highs in the
lower 80s. Minimum RH 72 percent. South winds less than 10 mph.
.SUNDAY NIGHT...Mostly cloudy with showers likely and a chance of
thunderstorms. Lows in the lower 60s. South winds less than
10 mph.
.MONDAY...Showers and a chance of thunderstorms. Highs in the
upper 70s. Minimum RH 71 percent. Southwest winds less than
10 mph.
.MONDAY NIGHT...Mostly cloudy with showers likely and a chance of
thunderstorms. Lows in the lower 60s. South winds less than
10 mph.
.TUESDAY...Showers and a chance of thunderstorms. Highs in the
lower 80s. Minimum RH 70 percent. Southwest winds less than
10 mph.
.TUESDAY NIGHT...Mostly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the lower 60s. South
winds less than 10 mph.
.WEDNESDAY...Showers and a chance of thunderstorms. Highs in the
lower 80s. Minimum RH 64 percent. Southwest winds less than
10 mph.
*The AGL Mixing Height is calculated from an average elevation for
the entire Forecast Zone and should only be used as a guide.
For a specific AGL Mixing Height a Spot Forecast will be needed.
$$
TNZ013-220745-
Campbell-
Including the cities of Fincastle, La Follette, Elk Valley,
Jellico, White Oak, Caryville, and Royal Blue
237 AM EDT Thu May 21 2026
Today Tonight Fri
Cloud Cover Mcldy Mcldy Mcldy
Temp (24h trend) 71-76 (-10) 60-65 (-1) 74-79
RH % (24h trend) 79-84 (+27) 95-100 (+1) 74-79
RH Recovery Excellent
AM 20FT Wnd (mph) Lgt/Var SE 7
PM 20FT Wnd (mph) Lgt/Var Lgt/Var S 8
Transport Wnd (mph) SW 6 SE 7 S 15
Mixing Hgt(ft-agl) 1870 410 2340
Vent Rate (mph-ft) 11220 2870 35100
Max Dispersion Early 8 Poor 3 Very Poor 22 Fair
Max Dispersion Late 9 Poor 3 Very Poor 30 Fair
Category Day 1 1 3
Max LVORI Early 9 6 8
Max LVORI Late 6 8 4
Precip Chance (%) 100 60 90
Precip Type Tstms Tstms Tstms
Precip Duration 6 2 6
Precip Amount 0.45 0.04 0.39
Precip Begin 8 AM Continuing Continuing
Precip End Continuing Continuing Continuing
Chance of Thunder (%) 40 20 50
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.FRIDAY NIGHT...Showers and a chance of thunderstorms. Lows in
the lower 60s. South winds 5 to 10 mph.
.SATURDAY...Showers and a chance of thunderstorms. Highs in the
upper 70s. Minimum RH 81 percent. South winds 5 to 10 mph.
.SATURDAY NIGHT...Mostly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the lower 60s. South
winds less than 10 mph.
.SUNDAY...Showers and a chance of thunderstorms. Highs around 80.
Minimum RH 76 percent. South winds less than 10 mph.
.SUNDAY NIGHT...Mostly cloudy with showers likely and a chance of
thunderstorms. Lows in the mid 60s. South winds less than 10 mph.
.MONDAY...Showers and a chance of thunderstorms. Highs in the
upper 70s. Minimum RH 76 percent. Southwest winds less than
10 mph.
.MONDAY NIGHT...Mostly cloudy with showers likely and a chance of
thunderstorms. Lows in the mid 60s. South winds less than 10 mph.
.TUESDAY...Showers and a chance of thunderstorms. Highs in the
upper 70s. Minimum RH 74 percent. Southwest winds less than
10 mph.
.TUESDAY NIGHT...Mostly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the mid 60s. South winds
less than 10 mph.
.WEDNESDAY...Showers and a chance of thunderstorms. Highs around
80. Minimum RH 68 percent. South winds less than 10 mph.
*The AGL Mixing Height is calculated from an average elevation for
the entire Forecast Zone and should only be used as a guide.
For a specific AGL Mixing Height a Spot Forecast will be needed.
$$
TNZ014-220745-
Claiborne-
Including the cities of Lone Mountain, Sandlick, Springdale,
Arthur, Harrogate-Shawanee, Clairfield, and Howard Quarter
237 AM EDT Thu May 21 2026
Today Tonight Fri
Cloud Cover Mcldy Mcldy Mcldy
Temp (24h trend) 74-79 (-11) 59-64 (-1) 77-82
RH % (24h trend) 74-79 (+30) 95-100 (0) 71-76
RH Recovery Excellent
AM 20FT Wnd (mph) Lgt/Var SE 5
PM 20FT Wnd (mph) Lgt/Var Lgt/Var S 5
Transport Wnd (mph) SW 5 E 7 S 13
Mixing Hgt(ft-agl) 2070 410 2780
Vent Rate (mph-ft) 10350 2870 36140
Max Dispersion Early 8 Poor 3 Very Poor 17 Gen Poor
Max Dispersion Late 10 Poor 3 Very Poor 30 Fair
Category Day 1 1 3
Max LVORI Early 9 9 9
Max LVORI Late 5 9 4
Precip Chance (%) 100 50 100
Precip Type Tstms Tstms Tstms
Precip Duration 5 1 5
Precip Amount 0.43 0.04 0.35
Precip Begin 8 AM Continuing Continuing
Precip End Continuing Continuing Continuing
Chance of Thunder (%) 40 20 50
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.FRIDAY NIGHT...Showers and a chance of thunderstorms. Lows in
the lower 60s. Southeast winds less than 10 mph.
.SATURDAY...Showers and a chance of thunderstorms. Highs in the
upper 70s. Minimum RH 79 percent. South winds less than 10 mph.
.SATURDAY NIGHT...Mostly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the lower 60s. South
winds less than 10 mph.
.SUNDAY...Showers and a chance of thunderstorms. Highs in the
lower 80s. Minimum RH 72 percent. Southwest winds less than
10 mph.
.SUNDAY NIGHT...Mostly cloudy with showers likely and a chance of
thunderstorms. Lows in the lower 60s. South winds less than
10 mph.
.MONDAY...Showers and a chance of thunderstorms. Highs in the
lower 80s. Minimum RH 71 percent. Southwest winds less than
10 mph.
.MONDAY NIGHT...Mostly cloudy with showers likely and a chance of
thunderstorms. Lows in the lower 60s. Southeast winds less than
10 mph.
.TUESDAY...Showers and a chance of thunderstorms. Highs in the
lower 80s. Minimum RH 70 percent. Southwest winds less than
10 mph.
.TUESDAY NIGHT...Mostly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the lower 60s. Southeast
winds less than 10 mph.
.WEDNESDAY...Showers and a chance of thunderstorms. Highs in the
lower 80s. Minimum RH 66 percent. Southwest winds less than
10 mph.
*The AGL Mixing Height is calculated from an average elevation for
the entire Forecast Zone and should only be used as a guide.
For a specific AGL Mixing Height a Spot Forecast will be needed.
$$
TNZ037-220745-
Union-
Including the cities of Maynardville, Norris Lake, Paulette,
Rose Hill, Sharps Chapel, and Luttrell
237 AM EDT Thu May 21 2026
Today Tonight Fri
Cloud Cover Mcldy Mcldy Mcldy
Temp (24h trend) 75-80 (-10) 61-66 (0) 77-82
RH % (24h trend) 76-81 (+32) 95-100 (+1) 73-78
RH Recovery Excellent
AM 20FT Wnd (mph) Lgt/Var Lgt/Var
PM 20FT Wnd (mph) Lgt/Var Lgt/Var Lgt/Var
Transport Wnd (mph) W 6 E 5 SW 10
Mixing Hgt(ft-agl) 2030 360 2200
Vent Rate (mph-ft) 12180 1800 22000
Max Dispersion Early 9 Poor 3 Very Poor 17 Gen Poor
Max Dispersion Late 10 Poor 2 Very Poor 21 Fair
Category Day 1 1 2
Max LVORI Early 9 7 9
Max LVORI Late 4 9 5
Precip Chance (%) 100 60 100
Precip Type Tstms Tstms Tstms
Precip Duration 5 2 5
Precip Amount 0.43 0.05 0.34
Precip Begin 8 AM Continuing Continuing
Precip End Continuing Continuing Continuing
Chance of Thunder (%) 40 20 50
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.FRIDAY NIGHT...Showers and a chance of thunderstorms. Lows in
the lower 60s. South winds less than 10 mph.
.SATURDAY...Showers and a chance of thunderstorms. Highs in the
upper 70s. Minimum RH 80 percent. Southwest winds less than
10 mph.
.SATURDAY NIGHT...Mostly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the lower 60s. South
winds less than 10 mph.
.SUNDAY...Showers and a chance of thunderstorms. Highs in the
lower 80s. Minimum RH 73 percent. Southwest winds less than
10 mph.
.SUNDAY NIGHT...Mostly cloudy with showers likely and a chance of
thunderstorms. Lows in the mid 60s. Light and variable wind.
.MONDAY...Showers and a chance of thunderstorms. Highs in the
lower 80s. Minimum RH 72 percent. Southwest winds less than
10 mph.
.MONDAY NIGHT...Mostly cloudy with showers likely and a chance of
thunderstorms. Lows in the mid 60s. Light and variable wind.
.TUESDAY...Showers and a chance of thunderstorms. Highs in the
lower 80s. Minimum RH 71 percent. Southwest winds less than
10 mph.
.TUESDAY NIGHT...Mostly cloudy with showers likely and a slight
chance of thunderstorms. Lows in the lower 60s. Light and
variable wind.
.WEDNESDAY...Showers and a chance of thunderstorms. Highs in the
lower 80s. Minimum RH 66 percent. South winds less than 10 mph.
*The AGL Mixing Height is calculated from an average elevation for
the entire Forecast Zone and should only be used as a guide.
For a specific AGL Mixing Height a Spot Forecast will be needed.
$$
TNZ036-220745-
Anderson-
Including the cities of Oak Ridge and Clinton
237 AM EDT Thu May 21 2026
Today Tonight Fri
Cloud Cover Mcldy Mcldy Mcldy
Temp (24h trend) 73-78 (-10) 60-65 (-1) 76-81
RH % (24h trend) 76-81 (+27) 95-100 (0) 74-79
RH Recovery Excellent
AM 20FT Wnd (mph) Lgt/Var S 7
PM 20FT Wnd (mph) Lgt/Var NE 5 S 9
Transport Wnd (mph) W 6 SE 5 S 14
Mixing Hgt(ft-agl) 2120 370 2430
Vent Rate (mph-ft) 12720 1850 34020
Max Dispersion Early 8 Poor 3 Very Poor 23 Fair
Max Dispersion Late 11 Poor 3 Very Poor 28 Fair
Category Day 1 1 3
Max LVORI Early 9 8 9
Max LVORI Late 5 9 5
Precip Chance (%) 100 70 100
Precip Type Tstms Tstms Tstms
Precip Duration 5 2 6
Precip Amount 0.31 0.05 0.46
Precip Begin 8 AM Continuing Continuing
Precip End Continuing Continuing Continuing
Chance of Thunder (%) 50 20 50
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.FRIDAY NIGHT...Showers and a chance of thunderstorms. Lows in
the lower 60s. South winds 5 to 10 mph.
.SATURDAY...Showers and a chance of thunderstorms. Highs in the
upper 70s. Minimum RH 82 percent. Southwest winds 5 to 10 mph.
.SATURDAY NIGHT...Mostly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the lower 60s. Southwest
winds less than 10 mph.
.SUNDAY...Showers and a chance of thunderstorms. Highs around 80.
Minimum RH 77 percent. Southwest winds less than 10 mph.
.SUNDAY NIGHT...Mostly cloudy with showers likely and a chance of
thunderstorms. Lows in the mid 60s. Southwest winds less than
10 mph.
.MONDAY...Showers and a chance of thunderstorms. Highs around 80.
Minimum RH 76 percent. Southwest winds less than 10 mph.
.MONDAY NIGHT...Showers and a chance of thunderstorms. Lows in
the mid 60s. Southwest winds less than 10 mph.
.TUESDAY...Showers and a chance of thunderstorms. Highs around
80. Minimum RH 75 percent. Southwest winds less than 10 mph.
.TUESDAY NIGHT...Mostly cloudy with showers likely and a slight
chance of thunderstorms. Lows in the lower 60s. South winds less
than 10 mph.
.WEDNESDAY...Showers and a chance of thunderstorms. Highs in the
lower 80s. Minimum RH 69 percent. South winds less than 10 mph.
*The AGL Mixing Height is calculated from an average elevation for
the entire Forecast Zone and should only be used as a guide.
For a specific AGL Mixing Height a Spot Forecast will be needed.
$$
TNZ069-220745-
Knox-
Including the cities of Bearden, Knoxville, and Lake Forest
237 AM EDT Thu May 21 2026
Today Tonight Fri
Cloud Cover Mcldy Mcldy Mcldy
Temp (24h trend) 75-80 (-11) 62-67 (-1) 78-83
RH % (24h trend) 75-80 (+30) 95-100 (+1) 73-78
RH Recovery Excellent
AM 20FT Wnd (mph) Lgt/Var Lgt/Var
PM 20FT Wnd (mph) Lgt/Var Lgt/Var S 5
Transport Wnd (mph) SW 6 SE 3 SW 10
Mixing Hgt(ft-agl) 2200 350 2720
Vent Rate (mph-ft) 13200 1050 27200
Max Dispersion Early 9 Poor 4 Very Poor 23 Fair
Max Dispersion Late 12 Poor 2 Very Poor 29 Fair
Category Day 2 1 3
Max LVORI Early 8 7 10
Max LVORI Late 5 9 5
Precip Chance (%) 100 60 100
Precip Type Tstms Tstms Tstms
Precip Duration 4 1 6
Precip Amount 0.30 0.04 0.41
Precip Begin 8 AM Continuing Continuing
Precip End Continuing Continuing Continuing
Chance of Thunder (%) 50 20 50
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.FRIDAY NIGHT...Showers and a chance of thunderstorms. Lows in
the mid 60s. South winds less than 10 mph.
.SATURDAY...Showers and a chance of thunderstorms. Highs around
80. Minimum RH 78 percent. Southwest winds less than 10 mph.
.SATURDAY NIGHT...Mostly cloudy with showers likely and a slight
chance of thunderstorms. Lows in the lower 60s. Southwest winds
less than 10 mph.
.SUNDAY...Showers and a chance of thunderstorms. Highs in the
lower 80s. Minimum RH 73 percent. Southwest winds less than
10 mph.
.SUNDAY NIGHT...Mostly cloudy with showers likely and a chance of
thunderstorms. Lows in the mid 60s. Southwest winds less than
10 mph.
.MONDAY...Showers and a chance of thunderstorms. Highs in the
lower 80s. Minimum RH 71 percent. Southwest winds less than
10 mph.
.MONDAY NIGHT...Showers and a chance of thunderstorms. Lows in
the mid 60s. Southwest winds less than 10 mph.
.TUESDAY...Showers and a chance of thunderstorms. Highs in the
lower 80s. Minimum RH 70 percent. Southwest winds less than
10 mph.
.TUESDAY NIGHT...Mostly cloudy with showers likely and a slight
chance of thunderstorms. Lows in the mid 60s. Light and variable
wind.
.WEDNESDAY...Showers and a chance of thunderstorms. Highs in the
lower 80s. Minimum RH 66 percent. Southwest winds less than
10 mph.
*The AGL Mixing Height is calculated from an average elevation for
the entire Forecast Zone and should only be used as a guide.
For a specific AGL Mixing Height a Spot Forecast will be needed.
$$
TNZ073-220745-
North Sevier-
Including the cities of Harrisburg, Kodak, McMahan, Sevierville,
Seymour, and Pigeon Forge
237 AM EDT Thu May 21 2026
Today Tonight Fri
Cloud Cover Mcldy Mcldy Mcldy
Temp (24h trend) 75-80 (-11) 62-67 (-1) 79-84
RH % (24h trend) 70-75 (+26) 95-100 (+4) 64-69
RH Recovery Excellent
AM 20FT Wnd (mph) Lgt/Var E 6
PM 20FT Wnd (mph) Lgt/Var Lgt/Var S 6
Transport Wnd (mph) W 5 SE 6 S 8
Mixing Hgt(ft-agl) 2020 360 3030
Vent Rate (mph-ft) 10100 2160 24240
Max Dispersion Early 8 Poor 3 Very Poor 11 Poor
Max Dispersion Late 10 Poor 2 Very Poor 22 Fair
Category Day 1 1 2
Max LVORI Early 7 6 8
Max LVORI Late 4 7 3
Precip Chance (%) 90 50 90
Precip Type Tstms Tstms Tstms
Precip Duration 5 1 6
Precip Amount 0.36 0.02 0.27
Precip Begin 8 AM Continuing Continuing
Precip End Continuing Continuing Continuing
Chance of Thunder (%) 50 20 50
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.FRIDAY NIGHT...Showers and a chance of thunderstorms. Lows in
the mid 60s. South winds less than 10 mph.
.SATURDAY...Showers and a chance of thunderstorms. Highs in the
lower 80s. Minimum RH 73 percent. Southwest winds less than
10 mph.
.SATURDAY NIGHT...Mostly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the mid 60s. South winds
less than 10 mph.
.SUNDAY...Showers and a chance of thunderstorms. Highs in the
lower 80s. Minimum RH 70 percent. Southwest winds less than
10 mph.
.SUNDAY NIGHT...Mostly cloudy with showers likely and a chance of
thunderstorms. Lows in the mid 60s. South winds less than 10 mph.
.MONDAY...Showers and a chance of thunderstorms. Highs in the
lower 80s. Minimum RH 67 percent. Southwest winds less than
10 mph.
.MONDAY NIGHT...Mostly cloudy with showers likely and a chance of
thunderstorms. Lows in the mid 60s. South winds less than 10 mph.
.TUESDAY...Showers and a chance of thunderstorms. Highs in the
lower 80s. Minimum RH 66 percent. West winds less than 10 mph.
.TUESDAY NIGHT...Mostly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the mid 60s. Southeast
winds less than 10 mph.
.WEDNESDAY...Showers and a chance of thunderstorms. Highs in the
lower 80s. Minimum RH 64 percent. West winds less than 10 mph.
*The AGL Mixing Height is calculated from an average elevation for
the entire Forecast Zone and should only be used as a guide.
For a specific AGL Mixing Height a Spot Forecast will be needed.
$$
TNZ067-220745-
Roane-
Including the cities of Harriman, Eagle Furnace, Rockwood,
Bradbury, Fairview, Kingston, and Oliver Springs
237 AM EDT Thu May 21 2026
Today Tonight Fri
Cloud Cover Mcldy Mcldy Mcldy
Temp (24h trend) 76-81 (-10) 60-65 (-1) 78-83
RH % (24h trend) 80-85 (+31) 95-100 (0) 77-82
RH Recovery Excellent
AM 20FT Wnd (mph) Lgt/Var S 5
PM 20FT Wnd (mph) Lgt/Var Lgt/Var S 7
Transport Wnd (mph) SW 6 SE 5 S 16
Mixing Hgt(ft-agl) 2280 400 2810
Vent Rate (mph-ft) 13680 2000 44960
Max Dispersion Early 7 Poor 4 Very Poor 34 Fair
Max Dispersion Late 11 Poor 4 Very Poor 41 Gen Good
Category Day 2 1 3
Max LVORI Early 10 9 9
Max LVORI Late 5 10 5
Precip Chance (%) 90 80 100
Precip Type Tstms Tstms Tstms
Precip Duration 4 1 6
Precip Amount 0.28 0.07 0.55
Precip Begin 8 AM Continuing Continuing
Precip End Continuing Continuing Continuing
Chance of Thunder (%) 50 20 50
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.FRIDAY NIGHT...Showers and a chance of thunderstorms. Lows in
the lower 60s. South winds less than 10 mph.
.SATURDAY...Showers and a chance of thunderstorms. Highs around
80. Minimum RH 83 percent. Southwest winds less than 10 mph.
.SATURDAY NIGHT...Mostly cloudy with showers likely and a slight
chance of thunderstorms. Lows in the lower 60s. South winds less
than 10 mph.
.SUNDAY...Showers and a chance of thunderstorms. Highs in the
lower 80s. Minimum RH 78 percent. South winds less than 10 mph.
.SUNDAY NIGHT...Mostly cloudy with showers likely and a chance of
thunderstorms. Lows in the lower 60s. South winds less than
10 mph.
.MONDAY...Showers and a chance of thunderstorms. Highs in the
lower 80s. Minimum RH 76 percent. Southwest winds less than
10 mph.
.MONDAY NIGHT...Showers and a chance of thunderstorms. Lows in
the lower 60s. South winds less than 10 mph.
.TUESDAY...Showers and a chance of thunderstorms. Highs in the
lower 80s. Minimum RH 74 percent. Southwest winds less than
10 mph.
.TUESDAY NIGHT...Mostly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the lower 60s. South
winds less than 10 mph.
.WEDNESDAY...Partly sunny with showers likely and a chance of
thunderstorms. Highs in the mid 80s. Minimum RH 68 percent.
Southwest winds less than 10 mph.
*The AGL Mixing Height is calculated from an average elevation for
the entire Forecast Zone and should only be used as a guide.
For a specific AGL Mixing Height a Spot Forecast will be needed.
$$
TNZ068-220745-
Loudon-
Including the cities of Lenoir City and Loudon
237 AM EDT Thu May 21 2026
Today Tonight Fri
Cloud Cover Mcldy Mcldy Mcldy
Temp (24h trend) 76-81 (-11) 61-66 (0) 79-84
RH % (24h trend) 80-85 (+32) 95-100 (0) 74-79
RH Recovery Excellent
AM 20FT Wnd (mph) Lgt/Var S 6
PM 20FT Wnd (mph) Lgt/Var Lgt/Var S 7
Transport Wnd (mph) SW 5 SE 3 S 16
Mixing Hgt(ft-agl) 2380 370 3430
Vent Rate (mph-ft) 11900 1110 54880
Max Dispersion Early 7 Poor 4 Very Poor 31 Fair
Max Dispersion Late 12 Poor 2 Very Poor 46 Gen Good
Category Day 1 1 3
Max LVORI Early 9 9 10
Max LVORI Late 5 10 4
Precip Chance (%) 90 70 100
Precip Type Tstms Tstms Tstms
Precip Duration 4 1 6
Precip Amount 0.28 0.05 0.46
Precip Begin 8 AM Continuing Continuing
Precip End Continuing Continuing Continuing
Chance of Thunder (%) 50 20 50
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.FRIDAY NIGHT...Showers and a chance of thunderstorms. Lows in
the lower 60s. South winds less than 10 mph.
.SATURDAY...Showers and a chance of thunderstorms. Highs around
80. Minimum RH 80 percent. Southwest winds 5 to 10 mph.
.SATURDAY NIGHT...Mostly cloudy with showers likely and a slight
chance of thunderstorms. Lows in the lower 60s. South winds less
than 10 mph.
.SUNDAY...Showers and a chance of thunderstorms. Highs in the
lower 80s. Minimum RH 76 percent. Southwest winds less than
10 mph.
.SUNDAY NIGHT...Mostly cloudy with showers likely and a chance of
thunderstorms. Lows in the mid 60s. Light and variable wind.
.MONDAY...Showers and a chance of thunderstorms. Highs in the
lower 80s. Minimum RH 73 percent. Southwest winds less than
10 mph.
.MONDAY NIGHT...Showers and a chance of thunderstorms. Lows in
the mid 60s. Light and variable wind.
.TUESDAY...Showers and a chance of thunderstorms. Highs in the
lower 80s. Minimum RH 72 percent. Southwest winds less than
10 mph.
.TUESDAY NIGHT...Mostly cloudy with showers likely and a slight
chance of thunderstorms. Lows in the mid 60s. Light and variable
wind.
.WEDNESDAY...Partly sunny with showers likely and a chance of
thunderstorms. Highs in the lower 80s. Minimum RH 67 percent.
Southwest winds less than 10 mph.
*The AGL Mixing Height is calculated from an average elevation for
the entire Forecast Zone and should only be used as a guide.
For a specific AGL Mixing Height a Spot Forecast will be needed.
$$
TNZ071-220745-
Northwest Blount-
Including the cities of Happy Valley, Maryville, and Alcoa
237 AM EDT Thu May 21 2026
Today Tonight Fri
Cloud Cover Mcldy Mcldy Mcldy
Temp (24h trend) 76-81 (-10) 63-68 (0) 79-84
RH % (24h trend) 76-81 (+29) 95-100 (+2) 70-75
RH Recovery Excellent
AM 20FT Wnd (mph) Lgt/Var SE 5
PM 20FT Wnd (mph) Lgt/Var Lgt/Var S 6
Transport Wnd (mph) SW 6 SE 5 S 12
Mixing Hgt(ft-agl) 2020 380 3830
Vent Rate (mph-ft) 12120 1900 45960
Max Dispersion Early 7 Poor 3 Very Poor 22 Fair
Max Dispersion Late 11 Poor 2 Very Poor 39 Fair
Category Day 1 1 3
Max LVORI Early 9 7 8
Max LVORI Late 5 8 4
Precip Chance (%) 100 60 90
Precip Type Tstms Tstms Tstms
Precip Duration 4 1 6
Precip Amount 0.34 0.03 0.35
Precip Begin 8 AM Continuing Continuing
Precip End Continuing Continuing Continuing
Chance of Thunder (%) 50 20 50
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.FRIDAY NIGHT...Showers and a chance of thunderstorms. Lows in
the mid 60s. South winds less than 10 mph.
.SATURDAY...Showers and a chance of thunderstorms. Highs in the
lower 80s. Minimum RH 76 percent. Southwest winds less than
10 mph.
.SATURDAY NIGHT...Mostly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the mid 60s. South winds
less than 10 mph.
.SUNDAY...Showers and a chance of thunderstorms. Highs in the
lower 80s. Minimum RH 73 percent. Southwest winds less than
10 mph.
.SUNDAY NIGHT...Mostly cloudy with showers likely and a chance of
thunderstorms. Lows in the mid 60s. South winds less than 10 mph.
.MONDAY...Showers and a chance of thunderstorms. Highs in the
lower 80s. Minimum RH 71 percent. Southwest winds less than
10 mph.
.MONDAY NIGHT...Mostly cloudy with showers likely and a chance of
thunderstorms. Lows in the mid 60s. South winds less than 10 mph.
.TUESDAY...Showers and a chance of thunderstorms. Highs in the
lower 80s. Minimum RH 69 percent. Southwest winds less than
10 mph.
.TUESDAY NIGHT...Mostly cloudy with showers likely and a slight
chance of thunderstorms. Lows in the mid 60s. Southeast winds
less than 10 mph.
.WEDNESDAY...Showers and a chance of thunderstorms. Highs in the
lower 80s. Minimum RH 66 percent. Southwest winds less than
10 mph.
*The AGL Mixing Height is calculated from an average elevation for
the entire Forecast Zone and should only be used as a guide.
For a specific AGL Mixing Height a Spot Forecast will be needed.
$$
TNZ086-220745-
Northwest Monroe-
Including the cities of Sweetwater, Madisonville,
and Bullet Creek
237 AM EDT Thu May 21 2026
Today Tonight Fri
Cloud Cover Mcldy Mcldy Mcldy
Temp (24h trend) 76-81 (-11) 62-67 (0) 79-84
RH % (24h trend) 75-80 (+28) 95-100 (+1) 67-72
RH Recovery Excellent
AM 20FT Wnd (mph) Lgt/Var S 7
PM 20FT Wnd (mph) Lgt/Var Lgt/Var S 7
Transport Wnd (mph) SW 5 SE 6 S 17
Mixing Hgt(ft-agl) 2230 400 3750
Vent Rate (mph-ft) 11150 2400 63750
Max Dispersion Early 8 Poor 2 Very Poor 42 Gen Good
Max Dispersion Late 11 Poor 3 Very Poor 55 Gen Good
Category Day 1 1 4
Max LVORI Early 9 8 9
Max LVORI Late 5 8 4
Precip Chance (%) 90 70 90
Precip Type Tstms Tstms Tstms
Precip Duration 4 2 6
Precip Amount 0.27 0.06 0.37
Precip Begin 8 AM Continuing Continuing
Precip End Continuing Continuing Continuing
Chance of Thunder (%) 50 20 50
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.FRIDAY NIGHT...Showers and a chance of thunderstorms. Lows in
the mid 60s. South winds less than 10 mph.
.SATURDAY...Showers and a chance of thunderstorms. Highs in the
lower 80s. Minimum RH 77 percent. South winds less than 10 mph.
.SATURDAY NIGHT...Mostly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the mid 60s. South winds
less than 10 mph.
.SUNDAY...Showers and a chance of thunderstorms. Highs in the
lower 80s. Minimum RH 73 percent. South winds less than 10 mph.
.SUNDAY NIGHT...Mostly cloudy with showers likely and a chance of
thunderstorms. Lows in the mid 60s. South winds less than 10 mph.
.MONDAY...Showers and a chance of thunderstorms. Highs in the
lower 80s. Minimum RH 71 percent. Southwest winds less than
10 mph.
.MONDAY NIGHT...Showers and a chance of thunderstorms. Lows in
the mid 60s. South winds less than 10 mph.
.TUESDAY...Showers and a chance of thunderstorms. Highs in the
lower 80s. Minimum RH 68 percent. Southwest winds less than
10 mph.
.TUESDAY NIGHT...Mostly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the mid 60s. Light and
variable wind.
.WEDNESDAY...Partly sunny with showers likely and a chance of
thunderstorms. Highs in the mid 80s. Minimum RH 64 percent.
Southwest winds less than 10 mph.
*The AGL Mixing Height is calculated from an average elevation for
the entire Forecast Zone and should only be used as a guide.
For a specific AGL Mixing Height a Spot Forecast will be needed.
$$
TNZ083-220745-
Rhea-
Including the cities of Dayton, Evensville, Old Washington,
Grandview, and Spring City
237 AM EDT Thu May 21 2026
Today Tonight Fri
Cloud Cover Mcldy Mcldy Mcldy
Temp (24h trend) 74-79 (-10) 60-65 (-1) 76-81
RH % (24h trend) 84-89 (+28) 95-100 (0) 81-86
RH Recovery Excellent
AM 20FT Wnd (mph) Lgt/Var S 8
PM 20FT Wnd (mph) Lgt/Var Lgt/Var S 8
Transport Wnd (mph) SE 6 SE 6 S 16
Mixing Hgt(ft-agl) 2210 390 2650
Vent Rate (mph-ft) 13260 2340 42400
Max Dispersion Early 7 Poor 3 Very Poor 33 Fair
Max Dispersion Late 10 Poor 3 Very Poor 38 Fair
Category Day 2 1 3
Max LVORI Early 9 9 9
Max LVORI Late 7 10 5
Precip Chance (%) 90 80 90
Precip Type Tstms Tstms Tstms
Precip Duration 4 2 6
Precip Amount 0.27 0.19 0.54
Precip Begin 8 AM Continuing Continuing
Precip End Continuing Continuing Continuing
Chance of Thunder (%) 50 20 50
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.FRIDAY NIGHT...Showers and a chance of thunderstorms. Lows in
the lower 60s. South winds less than 10 mph.
.SATURDAY...Showers and a chance of thunderstorms. Highs in the
upper 70s. Minimum RH 87 percent. South winds less than 10 mph.
.SATURDAY NIGHT...Mostly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the lower 60s. South
winds less than 10 mph.
.SUNDAY...Showers and a chance of thunderstorms. Highs in the
lower 80s. Minimum RH 83 percent. South winds less than 10 mph.
.SUNDAY NIGHT...Showers and a chance of thunderstorms. Lows in
the lower 60s. South winds less than 10 mph.
.MONDAY...Showers and a chance of thunderstorms. Highs around 80.
Minimum RH 80 percent. South winds less than 10 mph.
.MONDAY NIGHT...Showers and a chance of thunderstorms. Lows in
the lower 60s. South winds less than 10 mph.
.TUESDAY...Showers and a chance of thunderstorms. Highs in the
lower 80s. Minimum RH 78 percent. South winds less than 10 mph.
.TUESDAY NIGHT...Mostly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the lower 60s. Light and
variable wind.
.WEDNESDAY...Partly sunny with showers likely and a chance of
thunderstorms. Highs in the lower 80s. Minimum RH 70 percent.
South winds less than 10 mph.
*The AGL Mixing Height is calculated from an average elevation for
the entire Forecast Zone and should only be used as a guide.
For a specific AGL Mixing Height a Spot Forecast will be needed.
$$
TNZ084-220745-
Meigs-
Including the city of Big Spring
237 AM EDT Thu May 21 2026
Today Tonight Fri
Cloud Cover Mcldy Mcldy Mcldy
Temp (24h trend) 76-81 (-10) 60-65 (-1) 78-83
RH % (24h trend) 79-84 (+29) 95-100 (0) 76-81
RH Recovery Excellent
AM 20FT Wnd (mph) Lgt/Var S 6
PM 20FT Wnd (mph) Lgt/Var Lgt/Var S 8
Transport Wnd (mph) SE 6 SE 5 S 17
Mixing Hgt(ft-agl) 2210 370 2870
Vent Rate (mph-ft) 13260 1850 48790
Max Dispersion Early 7 Poor 4 Very Poor 33 Fair
Max Dispersion Late 11 Poor 2 Very Poor 43 Gen Good
Category Day 2 1 3
Max LVORI Early 9 9 9
Max LVORI Late 5 10 4
Precip Chance (%) 90 80 90
Precip Type Tstms Tstms Tstms
Precip Duration 4 3 6
Precip Amount 0.23 0.16 0.60
Precip Begin 8 AM Continuing Continuing
Precip End Continuing Continuing Continuing
Chance of Thunder (%) 50 20 50
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.FRIDAY NIGHT...Showers and a chance of thunderstorms. Lows in
the lower 60s. South winds less than 10 mph.
.SATURDAY...Showers and a chance of thunderstorms. Highs in the
lower 80s. Minimum RH 81 percent. South winds less than 10 mph.
.SATURDAY NIGHT...Mostly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the lower 60s. South
winds less than 10 mph.
.SUNDAY...Showers and a chance of thunderstorms. Highs in the
lower 80s. Minimum RH 77 percent. South winds less than 10 mph.
.SUNDAY NIGHT...Mostly cloudy with showers likely and a chance of
thunderstorms. Lows in the lower 60s. Light and variable wind.
.MONDAY...Showers and a chance of thunderstorms. Highs in the
lower 80s. Minimum RH 74 percent. South winds less than 10 mph.
.MONDAY NIGHT...Showers and a chance of thunderstorms. Lows in
the lower 60s. Light and variable wind.
.TUESDAY...Showers and a chance of thunderstorms. Highs in the
lower 80s. Minimum RH 72 percent. Southwest winds less than
10 mph.
.TUESDAY NIGHT...Mostly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the lower 60s. Light and
variable wind.
.WEDNESDAY...Partly sunny with showers likely and a chance of
thunderstorms. Highs in the mid 80s. Minimum RH 66 percent. South
winds less than 10 mph.
*The AGL Mixing Height is calculated from an average elevation for
the entire Forecast Zone and should only be used as a guide.
For a specific AGL Mixing Height a Spot Forecast will be needed.
$$
TNZ085-220745-
McMinn-
Including the cities of Athens, Clear Water, Dentville,
and Etowah
237 AM EDT Thu May 21 2026
Today Tonight Fri
Cloud Cover Mcldy Mcldy Mcldy
Temp (24h trend) 76-81 (-11) 60-65 (-1) 79-84
RH % (24h trend) 77-82 (+31) 95-100 (0) 72-77
RH Recovery Excellent
AM 20FT Wnd (mph) Lgt/Var S 6
PM 20FT Wnd (mph) Lgt/Var Lgt/Var S 7
Transport Wnd (mph) SW 3 SE 5 S 16
Mixing Hgt(ft-agl) 2290 380 3160
Vent Rate (mph-ft) 6870 1900 50560
Max Dispersion Early 7 Poor 3 Very Poor 36 Fair
Max Dispersion Late 11 Poor 3 Very Poor 45 Gen Good
Category Day 1 1 3
Max LVORI Early 9 10 9
Max LVORI Late 5 10 4
Precip Chance (%) 90 70 90
Precip Type Tstms Tstms Tstms
Precip Duration 4 2 6
Precip Amount 0.19 0.10 0.48
Precip Begin 8 AM Continuing Continuing
Precip End Continuing Continuing Continuing
Chance of Thunder (%) 50 20 50
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.FRIDAY NIGHT...Showers and a chance of thunderstorms. Lows in
the lower 60s. South winds 5 to 10 mph.
.SATURDAY...Showers and a chance of thunderstorms. Highs around
80. Minimum RH 79 percent. South winds less than 10 mph.
.SATURDAY NIGHT...Mostly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the lower 60s. South
winds less than 10 mph.
.SUNDAY...Showers and a chance of thunderstorms. Highs in the
lower 80s. Minimum RH 75 percent. South winds less than 10 mph.
.SUNDAY NIGHT...Mostly cloudy with showers likely and a chance of
thunderstorms. Lows in the lower 60s. South winds less than
10 mph.
.MONDAY...Showers and a chance of thunderstorms. Highs in the
lower 80s. Minimum RH 72 percent. Southwest winds less than
10 mph.
.MONDAY NIGHT...Showers and a chance of thunderstorms. Lows in
the lower 60s. South winds less than 10 mph.
.TUESDAY...Showers and a chance of thunderstorms. Highs in the
lower 80s. Minimum RH 69 percent. Southwest winds less than
10 mph.
.TUESDAY NIGHT...Mostly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the lower 60s. Southeast
winds less than 10 mph.
.WEDNESDAY...Partly sunny with showers likely and a chance of
thunderstorms. Highs in the mid 80s. Minimum RH 64 percent.
Southwest winds less than 10 mph.
*The AGL Mixing Height is calculated from an average elevation for
the entire Forecast Zone and should only be used as a guide.
For a specific AGL Mixing Height a Spot Forecast will be needed.
$$
TNZ099-220745-
Hamilton-
Including the cities of Chattanooga, Lookout Mountain,
and Signal Mountain
237 AM EDT Thu May 21 2026
Today Tonight Fri
Cloud Cover Mcldy Mcldy Mcldy
Temp (24h trend) 76-81 (-9) 62-67 (-1) 77-82
RH % (24h trend) 79-84 (+24) 95-100 (+1) 77-82
RH Recovery Excellent
AM 20FT Wnd (mph) Lgt/Var S 9
PM 20FT Wnd (mph) Lgt/Var Lgt/Var S 9 G17
Transport Wnd (mph) S 6 E 5 S 15
Mixing Hgt(ft-agl) 2440 390 2750
Vent Rate (mph-ft) 14640 1950 41250
Max Dispersion Early 7 Poor 2 Very Poor 37 Fair
Max Dispersion Late 13 Gen Poor 4 Very Poor 37 Fair
Category Day 2 1 3
Max LVORI Early 8 8 7
Max LVORI Late 5 8 5
Precip Chance (%) 90 80 90
Precip Type Tstms Tstms Tstms
Precip Duration 5 2 5
Precip Amount 0.23 0.17 0.60
Precip Begin 8 AM Continuing Continuing
Precip End Continuing Continuing Continuing
Chance of Thunder (%) 50 20 50
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.FRIDAY NIGHT...Showers and a chance of thunderstorms. Lows in
the mid 60s. South winds 5 to 10 mph.
.SATURDAY...Showers and a chance of thunderstorms. Highs around
80. Minimum RH 80 percent. South winds less than 10 mph.
.SATURDAY NIGHT...Mostly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the mid 60s. South winds
less than 10 mph.
.SUNDAY...Showers and a chance of thunderstorms. Highs in the
lower 80s. Minimum RH 79 percent. South winds less than 10 mph.
.SUNDAY NIGHT...Mostly cloudy with showers likely and a chance of
thunderstorms. Lows in the mid 60s. South winds less than 10 mph.
.MONDAY...Showers and a chance of thunderstorms. Highs in the
lower 80s. Minimum RH 75 percent. South winds less than 10 mph.
.MONDAY NIGHT...Showers and a chance of thunderstorms. Lows in
the mid 60s. South winds less than 10 mph.
.TUESDAY...Showers and a chance of thunderstorms. Highs in the
lower 80s. Minimum RH 73 percent. South winds less than 10 mph.
.TUESDAY NIGHT...Mostly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the mid 60s. Southeast
winds less than 10 mph.
.WEDNESDAY...Partly sunny with showers likely and a chance of
thunderstorms. Highs in the lower 80s. Minimum RH 66 percent.
South winds less than 10 mph.
*The AGL Mixing Height is calculated from an average elevation for
the entire Forecast Zone and should only be used as a guide.
For a specific AGL Mixing Height a Spot Forecast will be needed.
$$
TNZ100-220745-
Bradley-
Including the cities of Cleveland and Tasso
237 AM EDT Thu May 21 2026
Today Tonight Fri
Cloud Cover Mcldy Mcldy Mcldy
Temp (24h trend) 77-82 (-9) 61-66 (-1) 78-83
RH % (24h trend) 74-79 (+26) 95-100 (0) 72-77
RH Recovery Excellent
AM 20FT Wnd (mph) Lgt/Var S 9 G17
PM 20FT Wnd (mph) Lgt/Var Lgt/Var S 9 G17
Transport Wnd (mph) SE 7 SE 5 S 17
Mixing Hgt(ft-agl) 2550 380 3160
Vent Rate (mph-ft) 17850 1900 53720
Max Dispersion Early 8 Poor 2 Very Poor 46 Gen Good
Max Dispersion Late 14 Gen Poor 2 Very Poor 45 Gen Good
Category Day 2 1 3
Max LVORI Early 9 9 9
Max LVORI Late 5 10 4
Precip Chance (%) 90 70 90
Precip Type Tstms Tstms Tstms
Precip Duration 4 2 5
Precip Amount 0.21 0.16 0.44
Precip Begin 8 AM Continuing Continuing
Precip End Continuing Continuing Continuing
Chance of Thunder (%) 50 20 50
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.FRIDAY NIGHT...Showers and a chance of thunderstorms. Lows in
the mid 60s. South winds 5 to 10 mph.
.SATURDAY...Showers and a chance of thunderstorms. Highs around
80. Minimum RH 77 percent. South winds less than 10 mph.
.SATURDAY NIGHT...Mostly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the lower 60s. South
winds less than 10 mph.
.SUNDAY...Showers and a chance of thunderstorms. Highs in the
lower 80s. Minimum RH 74 percent. South winds less than 10 mph.
.SUNDAY NIGHT...Mostly cloudy with showers likely and a chance of
thunderstorms. Lows in the mid 60s. South winds less than 10 mph.
.MONDAY...Showers and a chance of thunderstorms. Highs in the
lower 80s. Minimum RH 71 percent. South winds less than 10 mph.
.MONDAY NIGHT...Showers and a chance of thunderstorms. Lows in
the mid 60s. South winds less than 10 mph.
.TUESDAY...Showers and a chance of thunderstorms. Highs in the
lower 80s. Minimum RH 68 percent. South winds less than 10 mph.
.TUESDAY NIGHT...Mostly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the mid 60s. Southeast
winds less than 10 mph.
.WEDNESDAY...Partly sunny with showers likely and a chance of
thunderstorms. Highs in the mid 80s. Minimum RH 63 percent. South
winds less than 10 mph.
*The AGL Mixing Height is calculated from an average elevation for
the entire Forecast Zone and should only be used as a guide.
For a specific AGL Mixing Height a Spot Forecast will be needed.
$$
TNZ101-220745-
West Polk-
Including the cities of Conasauga, Archville, Benton, Parksville,
and Reliance
237 AM EDT Thu May 21 2026
Today Tonight Fri
Cloud Cover Mcldy Mcldy Pcldy
Temp (24h trend) 77-82 (-9) 62-67 (-1) 79-84
RH % (24h trend) 70-75 (+25) 95-100 (+3) 65-70
RH Recovery Excellent
AM 20FT Wnd (mph) Lgt/Var S 8
PM 20FT Wnd (mph) Lgt/Var Lgt/Var S 9
Transport Wnd (mph) S 6 SE 7 S 17
Mixing Hgt(ft-agl) 2310 410 3800
Vent Rate (mph-ft) 13860 2870 64600
Max Dispersion Early 8 Poor 2 Very Poor 54 Gen Good
Max Dispersion Late 12 Poor 3 Very Poor 58 Gen Good
Category Day 2 1 4
Max LVORI Early 7 7 8
Max LVORI Late 4 8 3
Precip Chance (%) 90 70 90
Precip Type Tstms Tstms Tstms
Precip Duration 3 2 5
Precip Amount 0.17 0.16 0.34
Precip Begin 8 AM Continuing Continuing
Precip End Continuing Continuing Continuing
Chance of Thunder (%) 50 20 50
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.FRIDAY NIGHT...Showers and a chance of thunderstorms. Lows in
the mid 60s. South winds less than 10 mph.
.SATURDAY...Showers and a chance of thunderstorms. Highs around
80. Minimum RH 73 percent. South winds less than 10 mph.
.SATURDAY NIGHT...Mostly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the mid 60s. Southeast
winds less than 10 mph.
.SUNDAY...Showers and a chance of thunderstorms. Highs in the
lower 80s. Minimum RH 69 percent. South winds less than 10 mph.
.SUNDAY NIGHT...Mostly cloudy with showers likely and a chance of
thunderstorms. Lows in the mid 60s. Light and variable wind.
.MONDAY...Showers and a chance of thunderstorms. Highs in the
lower 80s. Minimum RH 67 percent. South winds less than 10 mph.
.MONDAY NIGHT...Showers and a chance of thunderstorms. Lows in
the mid 60s. Southeast winds less than 10 mph.
.TUESDAY...Showers and a chance of thunderstorms. Highs in the
lower 80s. Minimum RH 64 percent. Southwest winds less than
10 mph.
.TUESDAY NIGHT...Mostly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the mid 60s. Light and
variable wind.
.WEDNESDAY...Partly sunny with showers likely and a chance of
thunderstorms. Highs in the mid 80s. Minimum RH 59 percent.
Southwest winds less than 10 mph.
*The AGL Mixing Height is calculated from an average elevation for
the entire Forecast Zone and should only be used as a guide.
For a specific AGL Mixing Height a Spot Forecast will be needed.
$$
TNZ082-220745-
Bledsoe-
Including the cities of Old Cumberland, Palio, Melvine,
Mount Crest, Pikeville, and Brayton
137 AM CDT Thu May 21 2026
Today Tonight Fri
Cloud Cover Mcldy Mcldy Mcldy
Temp (24h trend) 73-78 (-8) 60-65 (0) 74-79
RH % (24h trend) 81-86 (+21) 95-100 (0) 78-83
RH Recovery Excellent
AM 20FT Wnd (mph) Lgt/Var S 8
PM 20FT Wnd (mph) Lgt/Var Lgt/Var S 8
Transport Wnd (mph) S 6 E 6 S 17
Mixing Hgt(ft-agl) 2280 420 2610
Vent Rate (mph-ft) 13680 2520 44370
Max Dispersion Early 7 Poor 3 Very Poor 33 Fair
Max Dispersion Late 11 Poor 5 Very Poor 41 Gen Good
Category Day 2 1 3
Max LVORI Early 9 9 8
Max LVORI Late 7 9 4
Precip Chance (%) 90 80 80
Precip Type Tstms Tstms Tstms
Precip Duration 5 2 5
Precip Amount 0.32 0.15 0.47
Precip Begin 8 AM Continuing Continuing
Precip End Continuing Continuing Continuing
Chance of Thunder (%) 50 20 50
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.FRIDAY NIGHT...Showers and a chance of thunderstorms. Lows in
the lower 60s. South winds less than 10 mph.
.SATURDAY...Showers and a chance of thunderstorms. Highs in the
upper 70s. Minimum RH 84 percent. South winds less than 10 mph.
.SATURDAY NIGHT...Mostly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the lower 60s. South
winds less than 10 mph.
.SUNDAY...Showers and a chance of thunderstorms. Highs in the
upper 70s. Minimum RH 82 percent. South winds less than 10 mph.
.SUNDAY NIGHT...Mostly cloudy with showers likely and a chance of
thunderstorms. Lows in the lower 60s. South winds less than
10 mph.
.MONDAY...Showers and a chance of thunderstorms. Highs in the
upper 70s. Minimum RH 79 percent. South winds less than 10 mph.
.MONDAY NIGHT...Mostly cloudy with showers likely and a chance of
thunderstorms. Lows in the lower 60s. South winds less than
10 mph.
.TUESDAY...Showers and a chance of thunderstorms. Highs in the
upper 70s. Minimum RH 77 percent. South winds less than 10 mph.
.TUESDAY NIGHT...Mostly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the lower 60s. Southeast
winds less than 10 mph.
.WEDNESDAY...Partly sunny with showers likely and a chance of
thunderstorms. Highs in the lower 80s. Minimum RH 70 percent.
South winds less than 10 mph.
*The AGL Mixing Height is calculated from an average elevation for
the entire Forecast Zone and should only be used as a guide.
For a specific AGL Mixing Height a Spot Forecast will be needed.
$$
TNZ081-220745-
Sequatchie-
Including the cities of Cagle, Dunlap, Cartwright, and Lone Oak
137 AM CDT Thu May 21 2026
Today Tonight Fri
Cloud Cover Mcldy Mcldy Mcldy
Temp (24h trend) 73-78 (-8) 60-65 (-1) 73-78
RH % (24h trend) 83-88 (+21) 95-100 (0) 81-86
RH Recovery Excellent
AM 20FT Wnd (mph) Lgt/Var S 7
PM 20FT Wnd (mph) Lgt/Var Lgt/Var S 8
Transport Wnd (mph) S 7 SE 6 S 16
Mixing Hgt(ft-agl) 2570 430 2330
Vent Rate (mph-ft) 17990 2580 37280
Max Dispersion Early 7 Poor 3 Very Poor 31 Fair
Max Dispersion Late 15 Gen Poor 5 Very Poor 32 Fair
Category Day 2 1 3
Max LVORI Early 9 8 8
Max LVORI Late 7 7 5
Precip Chance (%) 90 80 90
Precip Type Tstms Tstms Tstms
Precip Duration 5 2 6
Precip Amount 0.33 0.22 0.45
Precip Begin 8 AM Continuing Continuing
Precip End Continuing Continuing Continuing
Chance of Thunder (%) 50 20 50
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.FRIDAY NIGHT...Showers and a chance of thunderstorms. Lows in
the lower 60s. South winds less than 10 mph.
.SATURDAY...Showers and a chance of thunderstorms. Highs in the
upper 70s. Minimum RH 85 percent. South winds less than 10 mph.
.SATURDAY NIGHT...Mostly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the lower 60s. South
winds less than 10 mph.
.SUNDAY...Showers and a chance of thunderstorms. Highs in the
upper 70s. Minimum RH 83 percent. South winds less than 10 mph.
.SUNDAY NIGHT...Mostly cloudy with showers likely and a chance of
thunderstorms. Lows in the mid 60s. South winds less than 10 mph.
.MONDAY...Showers and a chance of thunderstorms. Highs in the
upper 70s. Minimum RH 80 percent. South winds less than 10 mph.
.MONDAY NIGHT...Mostly cloudy with showers likely and a chance of
thunderstorms. Lows in the mid 60s. South winds less than 10 mph.
.TUESDAY...Showers and a chance of thunderstorms. Highs in the
upper 70s. Minimum RH 78 percent. South winds less than 10 mph.
.TUESDAY NIGHT...Mostly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the mid 60s. Southeast
winds less than 10 mph.
.WEDNESDAY...Partly sunny with showers likely and a chance of
thunderstorms. Highs around 80. Minimum RH 71 percent. South
winds less than 10 mph.
*The AGL Mixing Height is calculated from an average elevation for
the entire Forecast Zone and should only be used as a guide.
For a specific AGL Mixing Height a Spot Forecast will be needed.
$$
TNZ098-220745-
Marion-
Including the cities of South Pittsburg, Haletown (Guild),
Jasper, Martin Springs, Whitwell, Powells Crossroads,
and Monteagle
137 AM CDT Thu May 21 2026
Today Tonight Fri
Cloud Cover Mcldy Mcldy Mcldy
Temp (24h trend) 74-79 (-7) 62-67 (0) 74-79
RH % (24h trend) 76-81 (+14) 95-100 (0) 76-81
RH Recovery Excellent
AM 20FT Wnd (mph) Lgt/Var SE 7
PM 20FT Wnd (mph) Lgt/Var Lgt/Var S 7
Transport Wnd (mph) S 7 SE 5 S 14
Mixing Hgt(ft-agl) 2590 420 2320
Vent Rate (mph-ft) 18130 2100 32480
Max Dispersion Early 6 Very Poor 3 Very Poor 28 Fair
Max Dispersion Late 15 Gen Poor 4 Very Poor 26 Fair
Category Day 2 1 3
Max LVORI Early 8 7 7
Max LVORI Late 5 6 4
Precip Chance (%) 90 80 90
Precip Type Tstms Tstms Tstms
Precip Duration 4 3 5
Precip Amount 0.19 0.28 0.51
Precip Begin 8 AM Continuing Continuing
Precip End Continuing Continuing Continuing
Chance of Thunder (%) 50 30 50
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.FRIDAY NIGHT...Showers and a chance of thunderstorms. Lows in
the mid 60s. South winds less than 10 mph.
.SATURDAY...Showers and a chance of thunderstorms. Highs in the
upper 70s. Minimum RH 78 percent. South winds less than 10 mph.
.SATURDAY NIGHT...Mostly cloudy with showers likely and a slight
chance of thunderstorms. Lows in the mid 60s. South winds less
than 10 mph.
.SUNDAY...Showers with thunderstorms likely. Highs in the upper
70s. Minimum RH 78 percent. South winds less than 10 mph.
.SUNDAY NIGHT...Mostly cloudy with showers likely and a chance of
thunderstorms. Lows in the mid 60s. Southeast winds less than
10 mph.
.MONDAY...Showers and a chance of thunderstorms. Highs in the
upper 70s. Minimum RH 75 percent. South winds less than 10 mph.
.MONDAY NIGHT...Mostly cloudy with showers likely and a chance of
thunderstorms. Lows in the mid 60s. Southeast winds less than
10 mph.
.TUESDAY...Showers and a chance of thunderstorms. Highs around
80. Minimum RH 72 percent. South winds less than 10 mph.
.TUESDAY NIGHT...Mostly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the mid 60s. Southeast
winds less than 10 mph.
.WEDNESDAY...Partly sunny with showers likely and a chance of
thunderstorms. Highs in the lower 80s. Minimum RH 67 percent.
South winds less than 10 mph.
*The AGL Mixing Height is calculated from an average elevation for
the entire Forecast Zone and should only be used as a guide.
For a specific AGL Mixing Height a Spot Forecast will be needed.
$$
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