Areas of gusty winds, heavy rain leading to flash flooding, and high surf continue across portions of Hawaii as Tropical Storm Lala continues to move away from the islands. Severe thunderstorm, heavy rainfall, and flash flooding threats continue from the Midwest to the Mid-Atlantic and across the central High Plains. Record heat continues for areas of the central/southern Plain into the Southeast Read More >
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Computed 10 Hour FM Haines
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616
FNUS54 KMRX 181839
FWFMRX
Fire Weather Planning Forecast for East Tennessee...Southwest
Virginia...and Extreme Southwest North Carolina
National Weather Service Morristown TN
239 PM EDT Tue Aug 18 2026
.DISCUSSION...
Dry weather and near normal temperatures will continue for
Wednesday. Rain chances return on Thursday afternoon, with showers
and thunderstorms expected.
VAZ001-191945-
Lee-
Including the city of Rose Hill
239 PM EDT Tue Aug 18 2026
Tonight Wed Wed Night Thu
Cloud Cover Mclear Mclear Pcldy Pcldy
Temp (24h trend) 60-65 (-5) 84-89 (+3) 64-69 81-86
RH % (24h trend) 95-100 (0) 45-50 (-15) 95-100 60-65
RH Recovery Excellent Excellent
AM 20FT Wnd (mph) Lgt/Var Lgt/Var
PM 20FT Wnd (mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Transport Wnd (mph) NE 3 W 6 W 3 W 9
Mixing Hgt(ft-agl) 360 4430 390 3440
Vent Rate (mph-ft) 1080 26580 1170 30960
Max Dispersion Early 2 Very Poor 13 Gen Poor 2 Very Poor 22 Fair
Max Dispersion Late 2 Very Poor 22 Fair 1 Very Poor 30 Fair
Category Day 1 3 1 3
Max LVORI Early 7 9 6 8
Max LVORI Late 9 3 8 3
Precip Chance (%) 0 0 40 50
Precip Type None None Showers Tstms
Precip Duration 1 1
Precip Amount 0.00 0.00 0.02 0.06
Precip Begin 5 AM Continuing
Precip End Continuing Continuing
Chance of Thunder (%) 0 0 0 40
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.THURSDAY NIGHT...Mostly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the mid 60s. Light winds.
.FRIDAY...Partly sunny with showers likely and a chance of
thunderstorms. Highs in the lower 80s. Minimum RH 68 percent.
Light winds.
.FRIDAY NIGHT...Partly cloudy with a slight chance of showers and
thunderstorms. Lows in the lower 60s. Light and variable wind.
.SATURDAY...Mostly sunny with a slight chance of showers and
thunderstorms. Highs in the lower 80s. Minimum RH 57 percent.
West winds less than 10 mph.
.SATURDAY NIGHT...Mostly clear. Lows in the lower 60s. Northwest
winds less than 10 mph.
.SUNDAY...Sunny. Highs in the lower 80s. Minimum RH 52 percent.
Northwest winds less than 10 mph.
.SUNDAY NIGHT...Mostly clear. Lows in the upper 50s. North winds
less than 10 mph.
.MONDAY...Mostly sunny. Highs in the lower 80s. Minimum RH
50 percent. West winds less than 10 mph.
.MONDAY NIGHT...Partly cloudy. Lows in the lower 60s. Northeast
winds less than 10 mph.
.TUESDAY...Mostly sunny with a slight chance of showers and
thunderstorms. Highs in the mid 80s. Minimum RH 52 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.
$$
VAZ002-191945-
Wise-
Including the cities of Big Stone Gap, Norton, Wise, Coeburn,
Appalachia, and Pardee
239 PM EDT Tue Aug 18 2026
Tonight Wed Wed Night Thu
Cloud Cover Mclear Mclear Pcldy Pcldy
Temp (24h trend) 59-64 (-5) 81-86 (+3) 63-68 78-83
RH % (24h trend) 95-100 (0) 47-52 (-16) 94-99 62-67
RH Recovery Excellent Excellent
AM 20FT Wnd (mph) Lgt/Var SW 5
PM 20FT Wnd (mph) Lgt/Var Lgt/Var Lgt/Var W 6
Transport Wnd (mph) N 5 W 7 S 5 SW 12
Mixing Hgt(ft-agl) 410 4520 370 3580
Vent Rate (mph-ft) 2050 31640 1850 42960
Max Dispersion Early 2 Very Poor 14 Gen Poor 2 Very Poor 28 Fair
Max Dispersion Late 2 Very Poor 27 Fair 3 Very Poor 35 Fair
Category Day 1 3 1 3
Max LVORI Early 7 9 5 7
Max LVORI Late 9 3 7 4
Precip Chance (%) 0 0 40 60
Precip Type None None Showers Tstms
Precip Duration 1 2
Precip Amount 0.00 0.00 0.01 0.09
Precip Begin 5 AM Continuing
Precip End Continuing Continuing
Chance of Thunder (%) 0 0 0 40
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.THURSDAY NIGHT...Mostly cloudy with a chance of showers and
thunderstorms. Lows in the lower 60s. Light winds.
.FRIDAY...Partly sunny with showers likely and a chance of
thunderstorms. Highs around 80. Minimum RH 71 percent. Light
winds.
.FRIDAY NIGHT...Partly cloudy with a chance of showers and
thunderstorms. Lows in the lower 60s. Southwest winds less than
10 mph.
.SATURDAY...Mostly sunny with a slight chance of showers and
thunderstorms. Highs around 80. Minimum RH 60 percent. West winds
less than 10 mph.
.SATURDAY NIGHT...Partly cloudy with a slight chance of showers
and thunderstorms. Lows around 60. West winds less than 10 mph.
.SUNDAY...Sunny. Highs in the upper 70s. Minimum RH 54 percent.
Northwest winds less than 10 mph.
.SUNDAY NIGHT...Mostly clear. Lows in the upper 50s. North winds
less than 10 mph.
.MONDAY...Mostly sunny. Highs in the upper 70s. Minimum RH
53 percent. West winds less than 10 mph.
.MONDAY NIGHT...Partly cloudy. Lows around 60. Southwest winds
less than 10 mph.
.TUESDAY...Mostly sunny with a slight chance of showers and
thunderstorms. Highs in the lower 80s. Minimum RH 55 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.
$$
VAZ005-191945-
Scott VA-
Including the city of Hiltons
239 PM EDT Tue Aug 18 2026
Tonight Wed Wed Night Thu
Cloud Cover Mclear Mclear Mclear Pcldy
Temp (24h trend) 61-66 (-5) 83-88 (+1) 64-69 81-86
RH % (24h trend) 95-100 (0) 50-55 (-11) 93-98 61-66
RH Recovery Excellent Excellent
AM 20FT Wnd (mph) Lgt/Var Lgt/Var
PM 20FT Wnd (mph) Lgt/Var Lgt/Var Lgt/Var SW 5
Transport Wnd (mph) NE 3 W 6 SW 3 SW 10
Mixing Hgt(ft-agl) 350 4390 350 3420
Vent Rate (mph-ft) 1050 26340 1050 34200
Max Dispersion Early 2 Very Poor 15 Gen Poor 2 Very Poor 22 Fair
Max Dispersion Late 2 Very Poor 22 Fair 1 Very Poor 30 Fair
Category Day 1 3 1 3
Max LVORI Early 7 9 6 7
Max LVORI Late 9 3 8 3
Precip Chance (%) 0 0 20 40
Precip Type None None Showers Tstms
Precip Duration 1 1
Precip Amount 0.00 0.00 0.01 0.04
Precip Begin 6 AM Continuing
Precip End Continuing Continuing
Chance of Thunder (%) 0 0 0 40
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.THURSDAY NIGHT...Partly cloudy with a chance of showers and
thunderstorms. Lows in the mid 60s. Light winds.
.FRIDAY...Partly sunny with showers likely and a chance of
thunderstorms. Highs in the lower 80s. Minimum RH 70 percent.
Light winds.
.FRIDAY NIGHT...Mostly cloudy with a chance of showers and
thunderstorms. Lows in the mid 60s. South winds less than 10 mph.
.SATURDAY...Mostly sunny with a slight chance of showers and
thunderstorms. Highs in the lower 80s. Minimum RH 61 percent.
West winds less than 10 mph.
.SATURDAY NIGHT...Mostly clear. Lows in the lower 60s. Northwest
winds less than 10 mph.
.SUNDAY...Sunny. Highs in the lower 80s. Minimum RH 53 percent.
Northwest winds less than 10 mph.
.SUNDAY NIGHT...Mostly clear. Lows in the upper 50s. North winds
less than 10 mph.
.MONDAY...Mostly sunny. Highs in the lower 80s. Minimum RH
52 percent. West winds less than 10 mph.
.MONDAY NIGHT...Partly cloudy. Lows in the lower 60s. Northeast
winds less than 10 mph.
.TUESDAY...Mostly sunny with a slight chance of showers and
thunderstorms. Highs in the mid 80s. Minimum RH 54 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.
$$
VAZ006-191945-
Russell-
Including the cities of Hansonville, Lebanon, Dye, Castlewood,
Honaker, and Rosedale
239 PM EDT Tue Aug 18 2026
Tonight Wed Wed Night Thu
Cloud Cover Mclear Mclear Mclear Pcldy
Temp (24h trend) 60-65 (-5) 81-86 (+2) 63-68 79-84
RH % (24h trend) 95-100 (0) 48-53 (-16) 92-97 62-67
RH Recovery Excellent Excellent
AM 20FT Wnd (mph) Lgt/Var SW 6
PM 20FT Wnd (mph) Lgt/Var Lgt/Var Lgt/Var W 6
Transport Wnd (mph) E 3 NW 7 SW 5 SW 10
Mixing Hgt(ft-agl) 370 4520 360 3620
Vent Rate (mph-ft) 1110 31640 1800 36200
Max Dispersion Early 2 Very Poor 17 Gen Poor 2 Very Poor 27 Fair
Max Dispersion Late 2 Very Poor 27 Fair 2 Very Poor 33 Fair
Category Day 1 3 1 3
Max LVORI Early 7 9 5 6
Max LVORI Late 9 3 7 3
Precip Chance (%) 0 0 30 50
Precip Type None None Showers Tstms
Precip Duration 1 2
Precip Amount 0.00 0.00 0.01 0.05
Precip Begin 6 AM Continuing
Precip End Continuing Continuing
Chance of Thunder (%) 0 0 0 40
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.THURSDAY NIGHT...Mostly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the mid 60s. Light winds.
.FRIDAY...Partly sunny with showers likely and a chance of
thunderstorms. Highs in the lower 80s. Minimum RH 73 percent.
Light winds.
.FRIDAY NIGHT...Mostly cloudy with a chance of showers and
thunderstorms. Lows in the lower 60s. South winds less than
10 mph.
.SATURDAY...Partly sunny with a chance of showers and
thunderstorms. Highs around 80. Minimum RH 64 percent. West winds
less than 10 mph.
.SATURDAY NIGHT...Partly cloudy with a slight chance of showers
and thunderstorms. Lows in the lower 60s. West winds less than
10 mph.
.SUNDAY...Mostly sunny. Highs in the upper 70s. Minimum RH
56 percent. Northwest winds less than 10 mph.
.SUNDAY NIGHT...Mostly clear. Lows in the upper 50s. North winds
less than 10 mph.
.MONDAY...Mostly sunny. Highs around 80. Minimum RH 53 percent.
West winds less than 10 mph.
.MONDAY NIGHT...Partly cloudy. Lows around 60. Southeast winds
less than 10 mph.
.TUESDAY...Mostly sunny with a slight chance of showers and
thunderstorms. Highs in the lower 80s. Minimum RH 54 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.
$$
VAZ008-191945-
Washington VA-
Including the cities of Benhams, Bristol VA, and Abingdon
239 PM EDT Tue Aug 18 2026
Tonight Wed Wed Night Thu
Cloud Cover Mclear Mclear Mclear Pcldy
Temp (24h trend) 60-65 (-6) 82-87 (+2) 63-68 81-86
RH % (24h trend) 95-100 (0) 46-51 (-16) 88-93 56-61
RH Recovery Excellent Excellent
AM 20FT Wnd (mph) Lgt/Var SW 6
PM 20FT Wnd (mph) Lgt/Var Lgt/Var Lgt/Var W 6
Transport Wnd (mph) E 2 W 7 SW 5 W 12
Mixing Hgt(ft-agl) 310 4210 330 3870
Vent Rate (mph-ft) 620 29470 1650 46440
Max Dispersion Early 2 Very Poor 17 Gen Poor 1 Very Poor 30 Fair
Max Dispersion Late 1 Very Poor 26 Fair 2 Very Poor 39 Fair
Category Day 1 2 1 3
Max LVORI Early 7 9 6 6
Max LVORI Late 9 3 6 3
Precip Chance (%) 0 0 20 40
Precip Type None None None Tstms
Precip Duration 1
Precip Amount 0.00 0.00 0.01 0.02
Precip Begin 6 AM Continuing
Precip End Continuing Continuing
Chance of Thunder (%) 0 0 0 40
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.THURSDAY NIGHT...Partly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the mid 60s. Light winds.
.FRIDAY...Partly sunny with showers likely and a chance of
thunderstorms. Highs in the lower 80s. Minimum RH 71 percent.
Light winds.
.FRIDAY NIGHT...Mostly cloudy with a chance of showers and
thunderstorms. Lows in the lower 60s. South winds less than
10 mph.
.SATURDAY...Partly sunny with a chance of showers and
thunderstorms. Highs around 80. Minimum RH 62 percent. West winds
less than 10 mph.
.SATURDAY NIGHT...Partly cloudy with a slight chance of showers
and thunderstorms. Lows in the lower 60s. West winds less than
10 mph.
.SUNDAY...Mostly sunny. Highs in the upper 70s. Minimum RH
54 percent. West winds less than 10 mph.
.SUNDAY NIGHT...Mostly clear. Lows in the upper 50s. Northeast
winds less than 10 mph.
.MONDAY...Mostly sunny. Highs around 80. Minimum RH 51 percent.
West winds less than 10 mph.
.MONDAY NIGHT...Partly cloudy. Lows around 60. Southeast winds
less than 10 mph.
.TUESDAY...Mostly sunny with a slight chance of showers and
thunderstorms. Highs in the lower 80s. Minimum RH 51 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.
$$
TNZ018-191945-
Johnson-
Including the cities of Doeville, Mountain City, Neva,
Shady Valley, Trade, and Laurel Bloomery
239 PM EDT Tue Aug 18 2026
Tonight Wed Wed Night Thu
Cloud Cover Mclear Mclear Mclear Pcldy
Temp (24h trend) 59-64 (-5) 80-85 (+2) 62-67 79-84
RH % (24h trend) 95-100 (-1) 41-46 (-18) 82-87 47-52
RH Recovery Excellent Excellent
AM 20FT Wnd (mph) Lgt/Var W 6
PM 20FT Wnd (mph) Lgt/Var Lgt/Var Lgt/Var W 6
Transport Wnd (mph) NW 5 NW 8 W 3 W 14
Mixing Hgt(ft-agl) 360 3920 280 4020
Vent Rate (mph-ft) 1800 31360 840 56280
Max Dispersion Early 3 Very Poor 19 Gen Poor 2 Very Poor 36 Fair
Max Dispersion Late 2 Very Poor 26 Fair 2 Very Poor 48 Gen Good
Category Day 1 3 1 3
Max LVORI Early 7 8 4 5
Max LVORI Late 8 3 5 3
Precip Chance (%) 0 0 0 30
Precip Type None None None Tstms
Precip Duration 1
Precip Amount 0.00 0.00 0.00 0.01
Precip Begin Continuing
Precip End Continuing
Chance of Thunder (%) 0 0 0 20
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.THURSDAY NIGHT...Partly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the lower 60s. Light
winds.
.FRIDAY...Showers and a chance of thunderstorms. Highs in the
upper 70s. Minimum RH 69 percent. Light winds.
.FRIDAY NIGHT...Mostly cloudy with a chance of showers and
thunderstorms. Lows in the lower 60s. Southeast winds less than
10 mph.
.SATURDAY...Mostly sunny with a chance of showers and
thunderstorms. Highs in the upper 70s. Minimum RH 60 percent.
West winds less than 10 mph.
.SATURDAY NIGHT...Partly cloudy with a slight chance of showers
and thunderstorms. Lows around 60. West winds less than 10 mph.
.SUNDAY...Sunny with a slight chance of showers and
thunderstorms. Highs in the upper 70s. Minimum RH 53 percent.
West winds less than 10 mph.
.SUNDAY NIGHT...Mostly clear. Lows in the upper 50s. North winds
less than 10 mph.
.MONDAY...Sunny. Highs in the upper 70s. Minimum RH 49 percent.
West winds less than 10 mph.
.MONDAY NIGHT...Partly cloudy. Lows in the upper 50s. Southeast
winds less than 10 mph.
.TUESDAY...Mostly sunny with a slight chance of showers and
thunderstorms. Highs in the lower 80s. Minimum RH 49 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.
$$
TNZ047-191945-
Southeast Carter-
Including the city of Hampton
239 PM EDT Tue Aug 18 2026
Tonight Wed Wed Night Thu
Cloud Cover Mclear Mclear Mclear Pcldy
Temp (24h trend) 59-64 (-5) 80-85 (+3) 62-67 80-85
RH % (24h trend) 95-100 (-3) 43-48 (-19) 78-83 50-55
RH Recovery Excellent Excellent
AM 20FT Wnd (mph) Lgt/Var W 5
PM 20FT Wnd (mph) W 6 Lgt/Var Lgt/Var W 5
Transport Wnd (mph) W 5 NW 8 W 3 W 13
Mixing Hgt(ft-agl) 380 3710 300 4160
Vent Rate (mph-ft) 1900 29680 900 54080
Max Dispersion Early 4 Very Poor 18 Gen Poor 2 Very Poor 39 Fair
Max Dispersion Late 3 Very Poor 26 Fair 3 Very Poor 49 Gen Good
Category Day 1 3 1 3
Max LVORI Early 7 7 4 4
Max LVORI Late 8 3 4 3
Precip Chance (%) 0 0 0 20
Precip Type None None None Tstms
Precip Duration 1
Precip Amount 0.00 0.00 0.00 0.01
Precip Begin 2 PM
Precip End Continuing
Chance of Thunder (%) 0 0 0 20
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.THURSDAY NIGHT...Partly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the lower 60s. Light
winds.
.FRIDAY...Showers and a chance of thunderstorms. Highs around 80.
Minimum RH 71 percent. Light winds.
.FRIDAY NIGHT...Mostly cloudy with a chance of showers and
thunderstorms. Lows in the lower 60s. South winds less than
10 mph.
.SATURDAY...Mostly sunny with a chance of showers and
thunderstorms. Highs in the upper 70s. Minimum RH 61 percent.
West winds less than 10 mph.
.SATURDAY NIGHT...Partly cloudy. Lows around 60. West winds less
than 10 mph.
.SUNDAY...Sunny with a slight chance of showers and
thunderstorms. Highs in the upper 70s. Minimum RH 54 percent.
West winds less than 10 mph.
.SUNDAY NIGHT...Mostly clear. Lows in the upper 50s. West winds
less than 10 mph.
.MONDAY...Mostly sunny. Highs in the upper 70s. Minimum RH
50 percent. West winds less than 10 mph.
.MONDAY NIGHT...Partly cloudy. Lows in the upper 50s. Southeast
winds less than 10 mph.
.TUESDAY...Mostly sunny with a slight chance of showers and
thunderstorms. Highs in the lower 80s. Minimum RH 50 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.
$$
TNZ045-191945-
Unicoi-
Including the cities of Erwin, Unicoi, and Limestone Cove
239 PM EDT Tue Aug 18 2026
Tonight Wed Wed Night Thu
Cloud Cover Mclear Mclear Mclear Pcldy
Temp (24h trend) 61-66 (-4) 80-85 (+2) 63-68 81-86
RH % (24h trend) 95-100 (-2) 46-51 (-18) 80-85 51-56
RH Recovery Excellent Excellent
AM 20FT Wnd (mph) Lgt/Var W 5
PM 20FT Wnd (mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Transport Wnd (mph) SW 3 NW 7 SW 3 W 12
Mixing Hgt(ft-agl) 390 3680 310 3830
Vent Rate (mph-ft) 1170 25760 930 45960
Max Dispersion Early 3 Very Poor 17 Gen Poor 2 Very Poor 30 Fair
Max Dispersion Late 2 Very Poor 22 Fair 2 Very Poor 38 Fair
Category Day 1 2 1 3
Max LVORI Early 7 8 4 4
Max LVORI Late 9 3 4 3
Precip Chance (%) 0 0 0 0
Precip Type None None None Tstms
Precip Duration
Precip Amount 0.00 0.00 0.00 0.00
Precip Begin
Precip End
Chance of Thunder (%) 0 0 0 10
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.THURSDAY NIGHT...Partly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the mid 60s. Light winds.
.FRIDAY...Showers and a chance of thunderstorms. Highs in the
lower 80s. Minimum RH 72 percent. Light winds.
.FRIDAY NIGHT...Mostly cloudy with a chance of showers and
thunderstorms. Lows in the lower 60s. South winds less than
10 mph.
.SATURDAY...Mostly sunny with a chance of showers and
thunderstorms. Highs in the upper 70s. Minimum RH 62 percent.
West winds less than 10 mph.
.SATURDAY NIGHT...Partly cloudy. Lows in the lower 60s. Southwest
winds less than 10 mph.
.SUNDAY...Sunny with a slight chance of showers and
thunderstorms. Highs in the upper 70s. Minimum RH 56 percent.
West winds less than 10 mph.
.SUNDAY NIGHT...Mostly clear. Lows in the upper 50s. Northeast
winds less than 10 mph.
.MONDAY...Mostly sunny. Highs in the upper 70s. Minimum RH
51 percent. West winds less than 10 mph.
.MONDAY NIGHT...Partly cloudy. Lows in the lower 60s. South winds
less than 10 mph.
.TUESDAY...Mostly sunny with a slight chance of showers and
thunderstorms. Highs in the lower 80s. Minimum RH 51 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.
$$
TNZ043-191945-
Southeast Greene-
Including the city of Cedar Creek
239 PM EDT Tue Aug 18 2026
Tonight Wed Wed Night Thu
Cloud Cover Pcldy Mclear Mclear Pcldy
Temp (24h trend) 61-66 (-4) 80-85 (+2) 63-68 81-86
RH % (24h trend) 94-99 (-4) 44-49 (-18) 81-86 49-54
RH Recovery Excellent Excellent
AM 20FT Wnd (mph) Lgt/Var W 6
PM 20FT Wnd (mph) NW 5 Lgt/Var SE 6 Lgt/Var
Transport Wnd (mph) W 3 NW 6 SE 3 W 10
Mixing Hgt(ft-agl) 360 3330 290 3310
Vent Rate (mph-ft) 1080 19980 870 33100
Max Dispersion Early 3 Very Poor 14 Gen Poor 2 Very Poor 27 Fair
Max Dispersion Late 2 Very Poor 18 Gen Poor 2 Very Poor 30 Fair
Category Day 1 2 1 3
Max LVORI Early 6 7 4 4
Max LVORI Late 8 2 5 3
Precip Chance (%) 0 0 0 20
Precip Type None None None Tstms
Precip Duration 1
Precip Amount 0.00 0.00 0.00 0.01
Precip Begin 2 PM
Precip End Continuing
Chance of Thunder (%) 0 0 0 20
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.THURSDAY NIGHT...Partly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the mid 60s. Light winds.
.FRIDAY...Mostly sunny with showers likely and a chance of
thunderstorms. Highs in the lower 80s. Minimum RH 67 percent.
Light winds.
.FRIDAY NIGHT...Mostly cloudy with a chance of showers and
thunderstorms. Lows in the lower 60s. South winds less than
10 mph.
.SATURDAY...Mostly sunny with a slight chance of showers and
thunderstorms. Highs around 80. Minimum RH 58 percent. West winds
less than 10 mph.
.SATURDAY NIGHT...Partly cloudy with a slight chance of showers
and thunderstorms. Lows in the lower 60s. Southwest winds less
than 10 mph.
.SUNDAY...Sunny with a slight chance of showers and
thunderstorms. Highs in the upper 70s. Minimum RH 52 percent.
West winds less than 10 mph.
.SUNDAY NIGHT...Mostly clear. Lows in the upper 50s. Southeast
winds less than 10 mph.
.MONDAY...Mostly sunny. Highs around 80. Minimum RH 48 percent.
West winds less than 10 mph.
.MONDAY NIGHT...Partly cloudy. Lows in the lower 60s. Southeast
winds less than 10 mph.
.TUESDAY...Mostly sunny with a slight chance of showers and
thunderstorms. Highs in the lower 80s. Minimum RH 48 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.
$$
TNZ041-191945-
Cocke Smoky Mountains-
Including the city of Hartford
239 PM EDT Tue Aug 18 2026
Tonight Wed Wed Night Thu
Cloud Cover Pcldy Mclear Mclear Pcldy
Temp (24h trend) 63-68 (-4) 81-86 (+2) 65-70 81-86
RH % (24h trend) 92-97 (-5) 43-48 (-19) 81-86 50-55
RH Recovery Excellent Excellent
AM 20FT Wnd (mph) Lgt/Var W 6
PM 20FT Wnd (mph) E 5 Lgt/Var S 6 Lgt/Var
Transport Wnd (mph) SW 3 NW 7 S 3 W 13
Mixing Hgt(ft-agl) 340 3500 260 3640
Vent Rate (mph-ft) 1020 24500 780 47320
Max Dispersion Early 2 Very Poor 14 Gen Poor 2 Very Poor 37 Fair
Max Dispersion Late 2 Very Poor 19 Gen Poor 2 Very Poor 41 Gen Good
Category Day 1 2 1 3
Max LVORI Early 5 6 4 4
Max LVORI Late 7 3 4 3
Precip Chance (%) 0 0 0 30
Precip Type None None None Tstms
Precip Duration 1
Precip Amount 0.00 0.00 0.00 0.01
Precip Begin 2 PM
Precip End Continuing
Chance of Thunder (%) 0 0 0 30
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.THURSDAY NIGHT...Partly cloudy with a chance of showers. Lows in
the upper 60s. Light winds.
.FRIDAY...Partly sunny with showers likely and a chance of
thunderstorms. Highs in the lower 80s. Minimum RH 69 percent.
Light winds.
.FRIDAY NIGHT...Mostly cloudy with a chance of showers and
thunderstorms. Lows in the mid 60s. South winds less than 10 mph.
.SATURDAY...Mostly sunny with a slight chance of showers and
thunderstorms. Highs around 80. Minimum RH 59 percent. West winds
less than 10 mph.
.SATURDAY NIGHT...Partly cloudy with a slight chance of showers
and thunderstorms. Lows in the mid 60s. Southwest winds less than
10 mph.
.SUNDAY...Sunny with a slight chance of showers and
thunderstorms. Highs in the upper 70s. Minimum RH 53 percent.
Northwest winds less than 10 mph.
.SUNDAY NIGHT...Mostly clear. Lows in the lower 60s. Southwest
winds less than 10 mph.
.MONDAY...Mostly sunny. Highs around 80. Minimum RH 50 percent.
Northwest winds less than 10 mph.
.MONDAY NIGHT...Partly cloudy. Lows in the lower 60s. Southeast
winds less than 10 mph.
.TUESDAY...Mostly sunny with a slight chance of showers and
thunderstorms. Highs in the lower 80s. Minimum RH 50 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.
$$
TNZ074-191945-
Sevier Smoky Mountains-
Including the cities of Elkmont and Gatlinburg
239 PM EDT Tue Aug 18 2026
Tonight Wed Wed Night Thu
Cloud Cover Pcldy Mclear Pcldy Pcldy
Temp (24h trend) 60-65 (-5) 78-83 (+2) 64-69 78-83
RH % (24h trend) 91-96 (-4) 45-50 (-18) 78-83 52-57
RH Recovery Excellent Excellent
AM 20FT Wnd (mph) Lgt/Var W 6
PM 20FT Wnd (mph) NW 5 Lgt/Var SE 5 Lgt/Var
Transport Wnd (mph) NE 5 NW 6 SE 3 W 10
Mixing Hgt(ft-agl) 370 3220 270 3420
Vent Rate (mph-ft) 1850 19320 810 34200
Max Dispersion Early 3 Very Poor 13 Gen Poor 3 Very Poor 27 Fair
Max Dispersion Late 2 Very Poor 17 Gen Poor 2 Very Poor 30 Fair
Category Day 1 2 1 3
Max LVORI Early 6 6 4 4
Max LVORI Late 6 3 3 3
Precip Chance (%) 0 0 0 30
Precip Type None None None Tstms
Precip Duration 1
Precip Amount 0.00 0.00 0.00 0.01
Precip Begin 8 AM
Precip End Continuing
Chance of Thunder (%) 0 0 0 30
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.THURSDAY NIGHT...Partly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the mid 60s. Light winds.
.FRIDAY...Partly sunny with showers likely and a chance of
thunderstorms. Highs in the upper 70s. Minimum RH 72 percent.
Light winds.
.FRIDAY NIGHT...Mostly cloudy with a chance of showers and
thunderstorms. Lows in the lower 60s. South winds less than
10 mph.
.SATURDAY...Mostly sunny with a slight chance of showers and
thunderstorms. Highs in the upper 70s. Minimum RH 61 percent.
Northwest winds less than 10 mph.
.SATURDAY NIGHT...Partly cloudy. Lows in the lower 60s. Southwest
winds less than 10 mph.
.SUNDAY...Sunny. Highs in the mid 70s. Minimum RH 56 percent.
Northwest winds less than 10 mph.
.SUNDAY NIGHT...Mostly clear. Lows in the upper 50s. East winds
less than 10 mph.
.MONDAY...Mostly sunny. Highs in the upper 70s. Minimum RH
53 percent. West winds less than 10 mph.
.MONDAY NIGHT...Partly cloudy. Lows in the lower 60s. Southeast
winds less than 10 mph.
.TUESDAY...Mostly sunny with a slight chance of showers and
thunderstorms. Highs in the upper 70s. Minimum RH 55 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.
$$
TNZ072-191945-
Blount Smoky Mountains-
Including the city of Cades Cove
239 PM EDT Tue Aug 18 2026
Tonight Wed Wed Night Thu
Cloud Cover Mclear Mclear Pcldy Pcldy
Temp (24h trend) 63-68 (-5) 83-88 (+2) 67-72 83-88
RH % (24h trend) 92-97 (-3) 45-50 (-15) 81-86 52-57
RH Recovery Excellent Excellent
AM 20FT Wnd (mph) Lgt/Var SW 6
PM 20FT Wnd (mph) Lgt/Var Lgt/Var SE 5 Lgt/Var
Transport Wnd (mph) E 3 N 6 SE 3 W 8
Mixing Hgt(ft-agl) 370 3590 270 3380
Vent Rate (mph-ft) 1110 21540 810 27040
Max Dispersion Early 3 Very Poor 14 Gen Poor 2 Very Poor 16 Gen Poor
Max Dispersion Late 2 Very Poor 18 Gen Poor 2 Very Poor 23 Fair
Category Day 1 2 1 3
Max LVORI Early 6 6 4 4
Max LVORI Late 7 3 4 3
Precip Chance (%) 0 0 0 20
Precip Type None None None Tstms
Precip Duration 1
Precip Amount 0.00 0.00 0.00 0.01
Precip Begin 8 AM
Precip End Continuing
Chance of Thunder (%) 0 0 0 20
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.THURSDAY NIGHT...Partly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the upper 60s. Light
winds.
.FRIDAY...Mostly sunny with showers likely and a chance of
thunderstorms. Highs in the lower 80s. Minimum RH 69 percent.
Light winds.
.FRIDAY 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.
.SATURDAY...Mostly sunny with a slight chance of showers and
thunderstorms. Highs in the lower 80s. Minimum RH 58 percent.
Northwest winds less than 10 mph.
.SATURDAY NIGHT...Mostly clear. Lows in the mid 60s. Southeast
winds less than 10 mph.
.SUNDAY...Sunny. Highs in the lower 80s. Minimum RH 53 percent.
Northwest winds less than 10 mph.
.SUNDAY NIGHT...Partly cloudy. Lows in the lower 60s. East winds
less than 10 mph.
.MONDAY...Mostly sunny. Highs in the lower 80s. Minimum RH
50 percent. Northwest winds less than 10 mph.
.MONDAY NIGHT...Partly cloudy. Lows in the mid 60s. Southeast
winds less than 10 mph.
.TUESDAY...Mostly sunny with a slight chance of showers and
thunderstorms. Highs in the mid 80s. Minimum RH 52 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.
$$
TNZ087-191945-
Southeast Monroe-
Including the cities of Citico and Coker Creek
239 PM EDT Tue Aug 18 2026
Tonight Wed Wed Night Thu
Cloud Cover Mclear Mclear Mclear Pcldy
Temp (24h trend) 61-66 (-5) 84-89 (+2) 66-71 84-89
RH % (24h trend) 95-100 (-3) 42-47 (-15) 81-86 49-54
RH Recovery Excellent Excellent
AM 20FT Wnd (mph) Lgt/Var Lgt/Var
PM 20FT Wnd (mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Transport Wnd (mph) NE 5 N 7 SE 3 W 8
Mixing Hgt(ft-agl) 400 3310 330 3480
Vent Rate (mph-ft) 2000 23170 990 27840
Max Dispersion Early 3 Very Poor 15 Gen Poor 2 Very Poor 18 Gen Poor
Max Dispersion Late 2 Very Poor 20 Gen Poor 3 Very Poor 26 Fair
Category Day 1 2 1 3
Max LVORI Early 6 7 4 4
Max LVORI Late 7 3 4 3
Precip Chance (%) 0 0 0 0
Precip Type None None None None
Precip Duration
Precip Amount 0.00 0.00 0.00 0.00
Precip Begin
Precip End
Chance of Thunder (%) 0 0 0 0
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.THURSDAY NIGHT...Partly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the upper 60s. Light
winds.
.FRIDAY...Mostly sunny with showers likely and a chance of
thunderstorms. Highs in the mid 80s. Minimum RH 65 percent. Light
winds.
.FRIDAY 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.
.SATURDAY...Mostly sunny with a slight chance of showers and
thunderstorms. Highs in the lower 80s. Minimum RH 55 percent.
Northwest winds less than 10 mph.
.SATURDAY NIGHT...Mostly clear. Lows in the lower 60s. North
winds less than 10 mph.
.SUNDAY...Sunny. Highs in the lower 80s. Minimum RH 50 percent.
Northwest winds less than 10 mph.
.SUNDAY NIGHT...Mostly clear. Lows in the lower 60s. Northeast
winds less than 10 mph.
.MONDAY...Mostly sunny. Highs in the lower 80s. Minimum RH
48 percent. West winds less than 10 mph.
.MONDAY NIGHT...Partly cloudy. Lows in the mid 60s. Southeast
winds less than 10 mph.
.TUESDAY...Mostly sunny with a slight chance of showers and
thunderstorms. Highs in the mid 80s. Minimum RH 50 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.
$$
TNZ102-191945-
East Polk-
Including the cities of Big Frog Mountain, Ducktown,
and Turtletown
239 PM EDT Tue Aug 18 2026
Tonight Wed Wed Night Thu
Cloud Cover Mclear Mclear Mclear Pcldy
Temp (24h trend) 62-67 (-5) 87-92 (+3) 65-70 88-93
RH % (24h trend) 95-100 (0) 40-45 (-11) 87-92 46-51
RH Recovery Excellent Excellent
AM 20FT Wnd (mph) Lgt/Var NW 5
PM 20FT Wnd (mph) NW 5 Lgt/Var SE 5 Lgt/Var
Transport Wnd (mph) N 5 N 8 E 3 W 8
Mixing Hgt(ft-agl) 370 3670 340 4250
Vent Rate (mph-ft) 1850 29360 1020 34000
Max Dispersion Early 2 Very Poor 18 Gen Poor 2 Very Poor 25 Fair
Max Dispersion Late 2 Very Poor 25 Fair 2 Very Poor 33 Fair
Category Day 1 3 1 3
Max LVORI Early 6 8 4 5
Max LVORI Late 9 2 5 3
Precip Chance (%) 0 0 0 0
Precip Type None None None None
Precip Duration
Precip Amount 0.00 0.00 0.00 0.00
Precip Begin
Precip End
Chance of Thunder (%) 0 0 0 0
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.THURSDAY NIGHT...Partly cloudy with a chance of showers and
thunderstorms. Lows in the upper 60s. Light winds.
.FRIDAY...Mostly sunny with a chance of showers and
thunderstorms. Highs in the upper 80s. Minimum RH 62 percent.
Light winds.
.FRIDAY NIGHT...Partly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the mid 60s. Light and
variable wind.
.SATURDAY...Mostly sunny with a slight chance of showers and
thunderstorms. Highs in the mid 80s. Minimum RH 52 percent.
Northwest winds less than 10 mph.
.SATURDAY NIGHT...Mostly clear. Lows in the mid 60s. North winds
less than 10 mph.
.SUNDAY...Sunny. Highs in the mid 80s. Minimum RH 47 percent.
Northwest winds less than 10 mph.
.SUNDAY NIGHT...Mostly clear. Lows in the lower 60s. Northeast
winds less than 10 mph.
.MONDAY...Mostly sunny. Highs in the mid 80s. Minimum RH
45 percent. Northwest winds less than 10 mph.
.MONDAY NIGHT...Mostly clear. Lows in the mid 60s. Southeast
winds less than 10 mph.
.TUESDAY...Mostly sunny with a slight chance of showers and
thunderstorms. Highs in the upper 80s. Minimum RH 47 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.
$$
NCZ060-191945-
Cherokee-
Including the cities of Andrews, Marble, Topton, Hiawasse Dam,
Murphy, Unaka, and Violet
239 PM EDT Tue Aug 18 2026
Tonight Wed Wed Night Thu
Cloud Cover Mclear Mclear Mclear Pcldy
Temp (24h trend) 61-66 (-5) 85-90 (+2) 65-70 86-91
RH % (24h trend) 95-100 (-1) 41-46 (-14) 87-92 46-51
RH Recovery Excellent Excellent
AM 20FT Wnd (mph) Lgt/Var Lgt/Var
PM 20FT Wnd (mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Transport Wnd (mph) N 6 N 7 SE 5 NW 10
Mixing Hgt(ft-agl) 370 3760 310 3910
Vent Rate (mph-ft) 2220 26320 1550 39100
Max Dispersion Early 2 Very Poor 13 Gen Poor 2 Very Poor 25 Fair
Max Dispersion Late 2 Very Poor 24 Fair 2 Very Poor 34 Fair
Category Day 1 2 1 3
Max LVORI Early 7 8 5 5
Max LVORI Late 8 3 5 3
Precip Chance (%) 0 0 0 0
Precip Type None None None None
Precip Duration
Precip Amount 0.00 0.00 0.00 0.00
Precip Begin
Precip End
Chance of Thunder (%) 0 0 0 0
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.THURSDAY NIGHT...Partly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the upper 60s. Light
winds.
.FRIDAY...Mostly sunny with a chance of showers and
thunderstorms. Highs in the mid 80s. Minimum RH 64 percent. Light
winds.
.FRIDAY NIGHT...Mostly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the mid 60s. Light and
variable wind.
.SATURDAY...Mostly sunny with a slight chance of showers and
thunderstorms. Highs in the mid 80s. Minimum RH 54 percent.
Northwest winds less than 10 mph.
.SATURDAY NIGHT...Mostly clear. Lows in the lower 60s. North
winds less than 10 mph.
.SUNDAY...Sunny. Highs in the mid 80s. Minimum RH 48 percent.
Northwest winds less than 10 mph.
.SUNDAY NIGHT...Mostly clear. Lows around 60. Northeast winds
less than 10 mph.
.MONDAY...Mostly sunny. Highs in the mid 80s. Minimum RH
47 percent. West winds less than 10 mph.
.MONDAY NIGHT...Partly cloudy. Lows in the lower 60s. East winds
less than 10 mph.
.TUESDAY...Mostly sunny with a slight chance of showers and
thunderstorms. Highs in the mid 80s. Minimum RH 49 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.
$$
NCZ061-191945-
Clay-
Including the cities of Shooting Creek, Brasstown, Hayesville,
and Tusquitee
239 PM EDT Tue Aug 18 2026
Tonight Wed Wed Night Thu
Cloud Cover Mclear Mclear Mclear Pcldy
Temp (24h trend) 60-65 (-5) 83-88 (+2) 64-69 83-88
RH % (24h trend) 95-100 (+1) 45-50 (-14) 85-90 50-55
RH Recovery Excellent Excellent
AM 20FT Wnd (mph) NW 6 Lgt/Var
PM 20FT Wnd (mph) N 8 Lgt/Var Lgt/Var Lgt/Var
Transport Wnd (mph) N 6 NW 7 NW 3 W 9
Mixing Hgt(ft-agl) 400 4260 300 4000
Vent Rate (mph-ft) 2400 29820 900 36000
Max Dispersion Early 3 Very Poor 15 Gen Poor 2 Very Poor 23 Fair
Max Dispersion Late 2 Very Poor 26 Fair 2 Very Poor 32 Fair
Category Day 1 2 1 3
Max LVORI Early 7 8 4 5
Max LVORI Late 8 3 4 3
Precip Chance (%) 0 0 0 0
Precip Type None None None None
Precip Duration
Precip Amount 0.00 0.00 0.00 0.00
Precip Begin
Precip End
Chance of Thunder (%) 0 0 0 0
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.THURSDAY NIGHT...Partly cloudy with a chance of showers. Lows in
the mid 60s. Light winds.
.FRIDAY...Mostly sunny with a chance of showers and
thunderstorms. Highs in the lower 80s. Minimum RH 69 percent.
Light winds.
.FRIDAY NIGHT...Mostly cloudy with a chance of showers and
thunderstorms. Lows in the lower 60s. North winds less than
10 mph.
.SATURDAY...Sunny with a slight chance of showers and
thunderstorms. Highs in the lower 80s. Minimum RH 59 percent.
Northwest winds less than 10 mph.
.SATURDAY NIGHT...Mostly clear. Lows in the lower 60s. North
winds less than 10 mph.
.SUNDAY...Sunny. Highs in the lower 80s. Minimum RH 52 percent.
Northwest winds less than 10 mph.
.SUNDAY NIGHT...Mostly clear. Lows in the upper 50s. North winds
less than 10 mph.
.MONDAY...Mostly sunny. Highs in the lower 80s. Minimum RH
50 percent. West winds less than 10 mph.
.MONDAY NIGHT...Partly cloudy. Lows in the lower 60s. Northeast
winds less than 10 mph.
.TUESDAY...Mostly sunny with a slight chance of showers and
thunderstorms. Highs in the lower 80s. Minimum RH 54 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.
$$
TNZ015-191945-
Hancock-
Including the cities of Evanston, Sneedville, Treadway,
and Kyles Ford
239 PM EDT Tue Aug 18 2026
Tonight Wed Wed Night Thu
Cloud Cover Mclear Mclear Pcldy Pcldy
Temp (24h trend) 61-66 (-5) 85-90 (+2) 64-69 83-88
RH % (24h trend) 95-100 (-1) 44-49 (-14) 93-98 56-61
RH Recovery Excellent Excellent
AM 20FT Wnd (mph) Lgt/Var Lgt/Var
PM 20FT Wnd (mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Transport Wnd (mph) NE 3 W 6 W 3 W 9
Mixing Hgt(ft-agl) 310 4560 340 3700
Vent Rate (mph-ft) 930 27360 1020 33300
Max Dispersion Early 3 Very Poor 11 Poor 2 Very Poor 22 Fair
Max Dispersion Late 2 Very Poor 23 Fair 1 Very Poor 30 Fair
Category Day 1 3 1 3
Max LVORI Early 7 9 6 8
Max LVORI Late 9 2 8 3
Precip Chance (%) 0 0 30 40
Precip Type None None Showers Tstms
Precip Duration 1 1
Precip Amount 0.00 0.00 0.03 0.04
Precip Begin 5 AM Continuing
Precip End Continuing Continuing
Chance of Thunder (%) 0 0 0 40
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.THURSDAY NIGHT...Mostly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the mid 60s. Light winds.
.FRIDAY...Partly sunny with showers likely and a chance of
thunderstorms. Highs in the mid 80s. Minimum RH 65 percent. Light
winds.
.FRIDAY NIGHT...Partly cloudy with a chance of showers and
thunderstorms. Lows in the mid 60s. Light and variable wind.
.SATURDAY...Mostly sunny with a slight chance of showers and
thunderstorms. Highs in the mid 80s. Minimum RH 53 percent. West
winds less than 10 mph.
.SATURDAY NIGHT...Mostly clear. Lows in the lower 60s. Northwest
winds less than 10 mph.
.SUNDAY...Sunny. Highs in the lower 80s. Minimum RH 48 percent.
Northwest winds less than 10 mph.
.SUNDAY NIGHT...Mostly clear. Lows around 60. North winds less
than 10 mph.
.MONDAY...Mostly sunny. Highs in the mid 80s. Minimum RH
46 percent. West winds less than 10 mph.
.MONDAY NIGHT...Partly cloudy. Lows in the lower 60s. Light and
variable wind.
.TUESDAY...Mostly sunny with a slight chance of showers and
thunderstorms. Highs in the mid 80s. Minimum RH 48 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.
$$
TNZ016-191945-
Hawkins-
Including the city of Mooresburg
239 PM EDT Tue Aug 18 2026
Tonight Wed Wed Night Thu
Cloud Cover Mclear Mclear Mclear Pcldy
Temp (24h trend) 62-67 (-5) 85-90 (+2) 64-69 83-88
RH % (24h trend) 95-100 (0) 49-54 (-11) 94-99 58-63
RH Recovery Excellent Excellent
AM 20FT Wnd (mph) Lgt/Var Lgt/Var
PM 20FT Wnd (mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Transport Wnd (mph) NE 3 W 6 SW 3 W 9
Mixing Hgt(ft-agl) 330 4420 340 3700
Vent Rate (mph-ft) 990 26520 1020 33300
Max Dispersion Early 2 Very Poor 11 Poor 1 Very Poor 21 Fair
Max Dispersion Late 2 Very Poor 22 Fair 2 Very Poor 30 Fair
Category Day 1 3 1 3
Max LVORI Early 7 10 6 8
Max LVORI Late 10 3 8 3
Precip Chance (%) 0 0 0 30
Precip Type None None None Tstms
Precip Duration 1
Precip Amount 0.00 0.00 0.00 0.01
Precip Begin Continuing
Precip End Continuing
Chance of Thunder (%) 0 0 0 30
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.THURSDAY NIGHT...Partly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the mid 60s. Light winds.
.FRIDAY...Partly sunny with showers likely and a chance of
thunderstorms. Highs in the mid 80s. Minimum RH 68 percent. Light
winds.
.FRIDAY NIGHT...Mostly cloudy with a chance of showers and
thunderstorms. Lows in the mid 60s. Light and variable wind.
.SATURDAY...Mostly sunny with a slight chance of showers and
thunderstorms. Highs in the mid 80s. Minimum RH 57 percent. West
winds less than 10 mph.
.SATURDAY NIGHT...Mostly clear. Lows in the lower 60s. Northwest
winds less than 10 mph.
.SUNDAY...Sunny. Highs in the lower 80s. Minimum RH 51 percent.
Northwest winds less than 10 mph.
.SUNDAY NIGHT...Mostly clear. Lows around 60. North winds less
than 10 mph.
.MONDAY...Mostly sunny. Highs in the mid 80s. Minimum RH
50 percent. Southwest winds less than 10 mph.
.MONDAY NIGHT...Partly cloudy. Lows in the lower 60s. Light and
variable wind.
.TUESDAY...Mostly sunny with a slight chance of showers and
thunderstorms. Highs in the mid 80s. Minimum RH 51 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.
$$
TNZ017-191945-
Sullivan-
Including the cities of Kingsport, Bristol TN,
and South Holston Dam
239 PM EDT Tue Aug 18 2026
Tonight Wed Wed Night Thu
Cloud Cover Mclear Mclear Mclear Pcldy
Temp (24h trend) 62-67 (-5) 84-89 (+1) 64-69 83-88
RH % (24h trend) 95-100 (0) 45-50 (-14) 91-96 53-58
RH Recovery Excellent Excellent
AM 20FT Wnd (mph) Lgt/Var SW 6
PM 20FT Wnd (mph) Lgt/Var Lgt/Var Lgt/Var W 6
Transport Wnd (mph) E 2 W 6 S 3 W 10
Mixing Hgt(ft-agl) 290 4150 320 3710
Vent Rate (mph-ft) 580 24900 960 37100
Max Dispersion Early 2 Very Poor 14 Gen Poor 1 Very Poor 21 Fair
Max Dispersion Late 1 Very Poor 21 Fair 1 Very Poor 33 Fair
Category Day 1 2 1 3
Max LVORI Early 7 9 6 7
Max LVORI Late 9 2 7 3
Precip Chance (%) 0 0 20 30
Precip Type None None Showers Tstms
Precip Duration 1 1
Precip Amount 0.00 0.00 0.01 0.01
Precip Begin 6 AM Continuing
Precip End Continuing Continuing
Chance of Thunder (%) 0 0 0 30
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.THURSDAY NIGHT...Partly cloudy with a chance of showers and
thunderstorms. Lows in the mid 60s. Light winds.
.FRIDAY...Partly sunny with showers likely and a chance of
thunderstorms. Highs in the mid 80s. Minimum RH 67 percent. Light
winds.
.FRIDAY NIGHT...Mostly cloudy with a chance of showers and
thunderstorms. Lows in the mid 60s. Southeast winds less than
10 mph.
.SATURDAY...Mostly sunny with a chance of showers and
thunderstorms. Highs in the lower 80s. Minimum RH 58 percent.
West winds less than 10 mph.
.SATURDAY NIGHT...Partly cloudy. Lows in the lower 60s. Southwest
winds less than 10 mph.
.SUNDAY...Sunny. Highs in the lower 80s. Minimum RH 51 percent.
West winds less than 10 mph.
.SUNDAY NIGHT...Mostly clear. Lows around 60. North winds less
than 10 mph.
.MONDAY...Mostly sunny. Highs in the lower 80s. Minimum RH
49 percent. West winds less than 10 mph.
.MONDAY NIGHT...Partly cloudy. Lows in the lower 60s. Southeast
winds less than 10 mph.
.TUESDAY...Mostly sunny with a slight chance of showers and
thunderstorms. Highs in the mid 80s. Minimum RH 49 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.
$$
TNZ046-191945-
Northwest Carter-
Including the city of Elizabethton
239 PM EDT Tue Aug 18 2026
Tonight Wed Wed Night Thu
Cloud Cover Mclear Mclear Mclear Pcldy
Temp (24h trend) 62-67 (-4) 83-88 (+2) 64-69 83-88
RH % (24h trend) 95-100 (-3) 41-46 (-18) 83-88 48-53
RH Recovery Excellent Excellent
AM 20FT Wnd (mph) Lgt/Var SW 6
PM 20FT Wnd (mph) Lgt/Var Lgt/Var Lgt/Var W 6
Transport Wnd (mph) SE 3 NW 6 SW 3 W 12
Mixing Hgt(ft-agl) 340 3760 300 3920
Vent Rate (mph-ft) 1020 22560 900 47040
Max Dispersion Early 2 Very Poor 15 Gen Poor 2 Very Poor 28 Fair
Max Dispersion Late 2 Very Poor 22 Fair 2 Very Poor 40 Fair
Category Day 1 2 1 3
Max LVORI Early 7 7 4 4
Max LVORI Late 8 2 5 3
Precip Chance (%) 0 0 20 20
Precip Type None None None Tstms
Precip Duration 1
Precip Amount 0.00 0.00 0.01 0.01
Precip Begin 7 AM Continuing
Precip End Continuing Continuing
Chance of Thunder (%) 0 0 0 20
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.THURSDAY NIGHT...Partly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the mid 60s. Light winds.
.FRIDAY...Showers and a chance of thunderstorms. Highs in the
lower 80s. Minimum RH 66 percent. Light winds.
.FRIDAY NIGHT...Mostly cloudy with a chance of showers and
thunderstorms. Lows in the mid 60s. Light and variable wind.
.SATURDAY...Mostly sunny with a chance of showers and
thunderstorms. Highs in the lower 80s. Minimum RH 57 percent.
West winds less than 10 mph.
.SATURDAY NIGHT...Partly cloudy. Lows in the lower 60s. Southwest
winds less than 10 mph.
.SUNDAY...Sunny with a slight chance of showers. Highs in the
lower 80s. Minimum RH 51 percent. West winds less than 10 mph.
.SUNDAY NIGHT...Mostly clear. Lows around 60. Northwest winds
less than 10 mph.
.MONDAY...Sunny. Highs in the lower 80s. Minimum RH 47 percent.
West winds less than 10 mph.
.MONDAY NIGHT...Partly cloudy. Lows in the lower 60s. Southeast
winds less than 10 mph.
.TUESDAY...Mostly sunny with a slight chance of showers and
thunderstorms. Highs in the mid 80s. Minimum RH 47 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.
$$
TNZ044-191945-
Washington TN-
Including the city of Johnson City
239 PM EDT Tue Aug 18 2026
Tonight Wed Wed Night Thu
Cloud Cover Mclear Mclear Mclear Pcldy
Temp (24h trend) 62-67 (-5) 85-90 (+2) 64-69 85-90
RH % (24h trend) 95-100 (0) 43-48 (-16) 88-93 50-55
RH Recovery Excellent Excellent
AM 20FT Wnd (mph) Lgt/Var Lgt/Var
PM 20FT Wnd (mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Transport Wnd (mph) S 3 NW 6 SW 3 W 9
Mixing Hgt(ft-agl) 310 3990 330 3470
Vent Rate (mph-ft) 930 23940 990 31230
Max Dispersion Early 2 Very Poor 14 Gen Poor 2 Very Poor 21 Fair
Max Dispersion Late 2 Very Poor 20 Gen Poor 2 Very Poor 29 Fair
Category Day 1 2 1 3
Max LVORI Early 7 8 5 6
Max LVORI Late 9 2 6 3
Precip Chance (%) 0 0 20 20
Precip Type None None None Tstms
Precip Duration 1
Precip Amount 0.00 0.00 0.01 0.01
Precip Begin 7 AM Continuing
Precip End Continuing Continuing
Chance of Thunder (%) 0 0 0 20
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.THURSDAY NIGHT...Partly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the mid 60s. Light winds.
.FRIDAY...Partly sunny with showers likely and a chance of
thunderstorms. Highs in the mid 80s. Minimum RH 65 percent. Light
winds.
.FRIDAY NIGHT...Mostly cloudy with a chance of showers and
thunderstorms. Lows in the mid 60s. South winds less than 10 mph.
.SATURDAY...Mostly sunny with a chance of showers and
thunderstorms. Highs in the mid 80s. Minimum RH 57 percent. West
winds less than 10 mph.
.SATURDAY NIGHT...Partly cloudy. Lows in the lower 60s. Southwest
winds less than 10 mph.
.SUNDAY...Sunny with a slight chance of showers and
thunderstorms. Highs in the lower 80s. Minimum RH 50 percent.
West winds less than 10 mph.
.SUNDAY NIGHT...Mostly clear. Lows around 60. North winds less
than 10 mph.
.MONDAY...Mostly sunny. Highs in the mid 80s. Minimum RH
47 percent. West winds less than 10 mph.
.MONDAY NIGHT...Partly cloudy. Lows in the lower 60s. Southeast
winds less than 10 mph.
.TUESDAY...Mostly sunny with a slight chance of showers and
thunderstorms. Highs in the upper 80s. Minimum RH 46 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.
$$
TNZ042-191945-
Northwest Greene-
Including the city of Greeneville
239 PM EDT Tue Aug 18 2026
Tonight Wed Wed Night Thu
Cloud Cover Pcldy Mclear Mclear Pcldy
Temp (24h trend) 63-68 (-4) 85-90 (+1) 64-69 85-90
RH % (24h trend) 95-100 (0) 45-50 (-13) 91-96 51-56
RH Recovery Excellent Excellent
AM 20FT Wnd (mph) Lgt/Var Lgt/Var
PM 20FT Wnd (mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Transport Wnd (mph) W 3 NW 5 S 3 W 9
Mixing Hgt(ft-agl) 280 3900 280 3370
Vent Rate (mph-ft) 840 19500 840 30330
Max Dispersion Early 2 Very Poor 10 Poor 1 Very Poor 21 Fair
Max Dispersion Late 1 Very Poor 17 Gen Poor 2 Very Poor 28 Fair
Category Day 1 2 1 3
Max LVORI Early 7 9 5 6
Max LVORI Late 9 2 6 3
Precip Chance (%) 0 0 0 20
Precip Type None None None Tstms
Precip Duration 1
Precip Amount 0.00 0.00 0.00 0.01
Precip Begin Continuing
Precip End Continuing
Chance of Thunder (%) 0 0 0 20
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.THURSDAY NIGHT...Partly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the mid 60s. Light winds.
.FRIDAY...Partly sunny with showers likely and a chance of
thunderstorms. Highs in the mid 80s. Minimum RH 64 percent. Light
winds.
.FRIDAY NIGHT...Mostly cloudy with a chance of showers and
thunderstorms. Lows in the mid 60s. South winds less than 10 mph.
.SATURDAY...Mostly sunny with a slight chance of showers and
thunderstorms. Highs in the mid 80s. Minimum RH 55 percent. West
winds less than 10 mph.
.SATURDAY NIGHT...Partly cloudy with a slight chance of showers
and thunderstorms. Lows in the lower 60s. Southwest winds less
than 10 mph.
.SUNDAY...Sunny. Highs in the mid 80s. Minimum RH 49 percent.
West winds less than 10 mph.
.SUNDAY NIGHT...Mostly clear. Lows in the lower 60s. Northeast
winds less than 10 mph.
.MONDAY...Mostly sunny. Highs in the mid 80s. Minimum RH
47 percent. West winds less than 10 mph.
.MONDAY NIGHT...Mostly clear. Lows in the lower 60s. Southeast
winds less than 10 mph.
.TUESDAY...Mostly sunny with a slight chance of showers and
thunderstorms. Highs in the upper 80s. Minimum RH 47 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.
$$
TNZ038-191945-
Grainger-
Including the city of Bean Station
239 PM EDT Tue Aug 18 2026
Tonight Wed Wed Night Thu
Cloud Cover Mclear Mclear Mclear Pcldy
Temp (24h trend) 63-68 (-5) 87-92 (+2) 66-71 85-90
RH % (24h trend) 95-100 (-2) 45-50 (-11) 92-97 56-61
RH Recovery Excellent Excellent
AM 20FT Wnd (mph) Lgt/Var Lgt/Var
PM 20FT Wnd (mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Transport Wnd (mph) NE 3 NW 6 W 3 W 8
Mixing Hgt(ft-agl) 300 4290 320 3410
Vent Rate (mph-ft) 900 25740 960 27280
Max Dispersion Early 3 Very Poor 11 Poor 1 Very Poor 20 Gen Poor
Max Dispersion Late 2 Very Poor 18 Gen Poor 2 Very Poor 25 Fair
Category Day 1 2 1 3
Max LVORI Early 6 8 6 7
Max LVORI Late 9 2 7 3
Precip Chance (%) 0 0 30 30
Precip Type None None Showers Tstms
Precip Duration 1 1
Precip Amount 0.00 0.00 0.03 0.05
Precip Begin 5 AM Continuing
Precip End Continuing Continuing
Chance of Thunder (%) 0 0 0 30
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.THURSDAY NIGHT...Partly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the upper 60s. Light
winds.
.FRIDAY...Partly sunny with showers likely and a chance of
thunderstorms. Highs in the mid 80s. Minimum RH 65 percent. Light
winds.
.FRIDAY NIGHT...Partly cloudy with a chance of showers and
thunderstorms. Lows in the mid 60s. Northwest winds less than
10 mph.
.SATURDAY...Mostly sunny with a slight chance of showers and
thunderstorms. Highs in the upper 80s. Minimum RH 52 percent.
West winds less than 10 mph.
.SATURDAY NIGHT...Mostly clear. Lows in the mid 60s. Northwest
winds less than 10 mph.
.SUNDAY...Sunny. Highs in the mid 80s. Minimum RH 48 percent.
Northwest winds less than 10 mph.
.SUNDAY NIGHT...Mostly clear. Lows in the lower 60s. North winds
less than 10 mph.
.MONDAY...Mostly sunny. Highs in the mid 80s. Minimum RH
46 percent. Northwest winds less than 10 mph.
.MONDAY NIGHT...Mostly clear. Lows in the mid 60s. Northeast
winds less than 10 mph.
.TUESDAY...Mostly sunny with a slight chance of showers and
thunderstorms. Highs in the upper 80s. Minimum RH 47 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.
$$
TNZ039-191945-
Hamblen-
Including the cities of Alpha, Morristown, and Russellville
239 PM EDT Tue Aug 18 2026
Tonight Wed Wed Night Thu
Cloud Cover Mclear Mclear Mclear Pcldy
Temp (24h trend) 64-69 (-5) 86-91 (+2) 66-71 85-90
RH % (24h trend) 95-100 (0) 46-51 (-12) 95-100 57-62
RH Recovery Excellent Excellent
AM 20FT Wnd (mph) Lgt/Var Lgt/Var
PM 20FT Wnd (mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Transport Wnd (mph) NE 2 NW 6 W 3 W 8
Mixing Hgt(ft-agl) 300 4100 310 3170
Vent Rate (mph-ft) 600 24600 930 25360
Max Dispersion Early 3 Very Poor 10 Poor 1 Very Poor 19 Gen Poor
Max Dispersion Late 1 Very Poor 20 Gen Poor 2 Very Poor 23 Fair
Category Day 1 2 1 2
Max LVORI Early 7 9 6 7
Max LVORI Late 10 3 8 3
Precip Chance (%) 0 0 0 30
Precip Type None None None Tstms
Precip Duration 1
Precip Amount 0.00 0.00 0.00 0.01
Precip Begin Continuing
Precip End Continuing
Chance of Thunder (%) 0 0 0 30
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.THURSDAY NIGHT...Partly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the upper 60s. Light
winds.
.FRIDAY...Partly sunny with showers likely and a chance of
thunderstorms. Highs in the mid 80s. Minimum RH 66 percent. Light
winds.
.FRIDAY NIGHT...Partly cloudy with a chance of showers and
thunderstorms. Lows in the mid 60s. Light and variable wind.
.SATURDAY...Mostly sunny with a slight chance of showers and
thunderstorms. Highs in the mid 80s. Minimum RH 55 percent. West
winds less than 10 mph.
.SATURDAY NIGHT...Mostly clear. Lows in the mid 60s. Light and
variable wind.
.SUNDAY...Sunny. Highs in the mid 80s. Minimum RH 50 percent.
Northwest winds less than 10 mph.
.SUNDAY NIGHT...Mostly clear. Lows in the lower 60s. North winds
less than 10 mph.
.MONDAY...Mostly sunny. Highs in the mid 80s. Minimum RH
48 percent. Northwest winds less than 10 mph.
.MONDAY NIGHT...Mostly clear. Lows in the mid 60s. Light and
variable wind.
.TUESDAY...Mostly sunny with a slight chance of showers and
thunderstorms. Highs in the upper 80s. Minimum RH 49 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.
$$
TNZ040-191945-
Northwest Cocke-
Including the cities of Bybee and Newport
239 PM EDT Tue Aug 18 2026
Tonight Wed Wed Night Thu
Cloud Cover Pcldy Mclear Mclear Pcldy
Temp (24h trend) 64-69 (-5) 85-90 (+2) 66-71 85-90
RH % (24h trend) 95-100 (0) 44-49 (-15) 91-96 52-57
RH Recovery Excellent Excellent
AM 20FT Wnd (mph) Lgt/Var Lgt/Var
PM 20FT Wnd (mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Transport Wnd (mph) SW 3 NW 6 SW 5 W 9
Mixing Hgt(ft-agl) 290 3850 290 3380
Vent Rate (mph-ft) 870 23100 1450 30420
Max Dispersion Early 2 Very Poor 12 Poor 2 Very Poor 26 Fair
Max Dispersion Late 1 Very Poor 19 Gen Poor 2 Very Poor 28 Fair
Category Day 1 2 1 3
Max LVORI Early 6 8 5 6
Max LVORI Late 9 2 6 3
Precip Chance (%) 0 0 0 20
Precip Type None None None Tstms
Precip Duration 1
Precip Amount 0.00 0.00 0.00 0.01
Precip Begin 8 AM
Precip End Continuing
Chance of Thunder (%) 0 0 0 20
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.THURSDAY NIGHT...Partly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the upper 60s. Light
winds.
.FRIDAY...Partly sunny with showers likely and a chance of
thunderstorms. Highs in the mid 80s. Minimum RH 65 percent. Light
winds.
.FRIDAY NIGHT...Mostly cloudy with a chance of showers and
thunderstorms. Lows in the upper 60s. Southwest winds less than
10 mph.
.SATURDAY...Mostly sunny with a slight chance of showers and
thunderstorms. Highs in the mid 80s. Minimum RH 55 percent. West
winds less than 10 mph.
.SATURDAY NIGHT...Partly cloudy with a slight chance of showers
and thunderstorms. Lows in the mid 60s. Southwest winds less than
10 mph.
.SUNDAY...Sunny with a slight chance of showers and
thunderstorms. Highs in the mid 80s. Minimum RH 50 percent.
Northwest winds less than 10 mph.
.SUNDAY NIGHT...Mostly clear. Lows in the lower 60s. Northwest
winds less than 10 mph.
.MONDAY...Mostly sunny. Highs in the mid 80s. Minimum RH
47 percent. Northwest winds less than 10 mph.
.MONDAY NIGHT...Partly cloudy. Lows in the mid 60s. Southeast
winds less than 10 mph.
.TUESDAY...Mostly sunny with a slight chance of showers and
thunderstorms. Highs in the upper 80s. Minimum RH 47 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.
$$
TNZ070-191945-
Jefferson-
Including the cities of Jefferson City, Strawberry Plains,
Chestnut Hill, Dandridge, and White Pine
239 PM EDT Tue Aug 18 2026
Tonight Wed Wed Night Thu
Cloud Cover Mclear Mclear Mclear Pcldy
Temp (24h trend) 65-70 (-5) 87-92 (+2) 67-72 87-92
RH % (24h trend) 95-100 (0) 44-49 (-13) 92-97 53-58
RH Recovery Excellent Excellent
AM 20FT Wnd (mph) Lgt/Var Lgt/Var
PM 20FT Wnd (mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Transport Wnd (mph) N 3 NW 5 S 3 W 8
Mixing Hgt(ft-agl) 290 4010 300 3400
Vent Rate (mph-ft) 870 20050 900 27200
Max Dispersion Early 3 Very Poor 10 Poor 1 Very Poor 17 Gen Poor
Max Dispersion Late 1 Very Poor 16 Gen Poor 1 Very Poor 23 Fair
Category Day 1 2 1 3
Max LVORI Early 6 9 6 7
Max LVORI Late 9 2 7 3
Precip Chance (%) 0 0 20 30
Precip Type None None None Tstms
Precip Duration 1
Precip Amount 0.00 0.00 0.01 0.01
Precip Begin 7 AM Continuing
Precip End Continuing Continuing
Chance of Thunder (%) 0 0 0 30
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.THURSDAY NIGHT...Partly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the upper 60s. Light
winds.
.FRIDAY...Partly sunny with showers likely and a chance of
thunderstorms. Highs in the upper 80s. Minimum RH 65 percent.
Light winds.
.FRIDAY NIGHT...Mostly cloudy with a chance of showers and
thunderstorms. Lows in the upper 60s. Northwest winds less than
10 mph.
.SATURDAY...Mostly sunny with a slight chance of showers and
thunderstorms. Highs in the upper 80s. Minimum RH 53 percent.
West winds less than 10 mph.
.SATURDAY NIGHT...Mostly clear. Lows in the mid 60s. West winds
less than 10 mph.
.SUNDAY...Sunny. Highs in the mid 80s. Minimum RH 49 percent.
Northwest winds less than 10 mph.
.SUNDAY NIGHT...Mostly clear. Lows in the mid 60s. North winds
less than 10 mph.
.MONDAY...Mostly sunny. Highs in the mid 80s. Minimum RH
47 percent. North winds less than 10 mph.
.MONDAY NIGHT...Partly cloudy. Lows in the mid 60s. Northeast
winds less than 10 mph.
.TUESDAY...Mostly sunny with a slight chance of showers and
thunderstorms. Highs in the upper 80s. Minimum RH 47 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.
$$
TNZ035-191945-
Morgan-
Including the cities of Pine Orchard, High Point, and Petros
239 PM EDT Tue Aug 18 2026
Tonight Wed Wed Night Thu
Cloud Cover Mclear Mclear Pcldy Pcldy
Temp (24h trend) 61-66 (-6) 87-92 (+5) 66-71 84-89
RH % (24h trend) 95-100 (0) 41-46 (-14) 94-99 60-65
RH Recovery Excellent Excellent
AM 20FT Wnd (mph) Lgt/Var Lgt/Var
PM 20FT Wnd (mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Transport Wnd (mph) NE 3 NW 5 S 6 W 8
Mixing Hgt(ft-agl) 350 4240 340 3470
Vent Rate (mph-ft) 1050 21200 2040 27760
Max Dispersion Early 3 Very Poor 14 Gen Poor 2 Very Poor 16 Gen Poor
Max Dispersion Late 2 Very Poor 18 Gen Poor 4 Very Poor 25 Fair
Category Day 1 2 1 3
Max LVORI Early 7 8 5 7
Max LVORI Late 9 3 6 3
Precip Chance (%) 0 0 50 60
Precip Type None None Tstms Tstms
Precip Duration 1 2
Precip Amount 0.00 0.00 0.07 0.02
Precip Begin 2 AM Continuing
Precip End Continuing Continuing
Chance of Thunder (%) 0 0 20 40
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.THURSDAY NIGHT...Partly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the mid 60s. Light winds.
.FRIDAY...Partly sunny with showers likely and a chance of
thunderstorms. Highs in the mid 80s. Minimum RH 67 percent. Light
winds.
.FRIDAY NIGHT...Partly cloudy with a slight chance of showers and
thunderstorms. Lows in the mid 60s. Northwest winds less than
10 mph.
.SATURDAY...Mostly sunny. Highs in the mid 80s. Minimum RH
53 percent. Northwest winds less than 10 mph.
.SATURDAY NIGHT...Mostly clear. Lows in the lower 60s. Northwest
winds less than 10 mph.
.SUNDAY...Sunny. Highs in the mid 80s. Minimum RH 50 percent.
Northwest winds less than 10 mph.
.SUNDAY NIGHT...Mostly clear. Lows around 60. North winds less
than 10 mph.
.MONDAY...Mostly sunny. Highs in the mid 80s. Minimum RH
49 percent. Southwest winds less than 10 mph.
.MONDAY NIGHT...Partly cloudy. Lows in the lower 60s. Northeast
winds less than 10 mph.
.TUESDAY...Mostly sunny with a slight chance of showers and
thunderstorms. Highs in the upper 80s. Minimum RH 51 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.
$$
TNZ012-191945-
Scott TN-
Including the cities of Big South Fork National, Oneida,
Smokey Junction, Elgin, Huntsville, Norma, and Slick Rock
239 PM EDT Tue Aug 18 2026
Tonight Wed Wed Night Thu
Cloud Cover Mclear Mclear Pcldy Pcldy
Temp (24h trend) 61-66 (-6) 86-91 (+4) 66-71 83-88
RH % (24h trend) 95-100 (-2) 40-45 (-16) 94-99 59-64
RH Recovery Excellent Excellent
AM 20FT Wnd (mph) Lgt/Var Lgt/Var
PM 20FT Wnd (mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Transport Wnd (mph) SE 3 NW 6 SE 5 W 9
Mixing Hgt(ft-agl) 370 4100 320 3400
Vent Rate (mph-ft) 1110 24600 1600 30600
Max Dispersion Early 3 Very Poor 14 Gen Poor 2 Very Poor 21 Fair
Max Dispersion Late 1 Very Poor 21 Fair 4 Very Poor 30 Fair
Category Day 1 2 1 3
Max LVORI Early 6 7 4 6
Max LVORI Late 9 2 6 3
Precip Chance (%) 0 0 60 60
Precip Type None None Tstms Tstms
Precip Duration 1 2
Precip Amount 0.00 0.00 0.05 0.03
Precip Begin 2 AM Continuing
Precip End Continuing Continuing
Chance of Thunder (%) 0 0 20 40
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.THURSDAY NIGHT...Partly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the mid 60s. Light winds.
.FRIDAY...Partly sunny with showers likely and a chance of
thunderstorms. Highs in the mid 80s. Minimum RH 66 percent. Light
winds.
.FRIDAY NIGHT...Partly cloudy with a slight chance of showers and
thunderstorms. Lows in the mid 60s. Light and variable wind.
.SATURDAY...Mostly sunny. Highs in the mid 80s. Minimum RH
54 percent. Northwest winds less than 10 mph.
.SATURDAY NIGHT...Mostly clear. Lows in the lower 60s. Northwest
winds less than 10 mph.
.SUNDAY...Sunny. Highs in the mid 80s. Minimum RH 50 percent.
Northwest winds less than 10 mph.
.SUNDAY NIGHT...Mostly clear. Lows in the lower 60s. North winds
less than 10 mph.
.MONDAY...Mostly sunny. Highs in the mid 80s. Minimum RH
49 percent. West winds less than 10 mph.
.MONDAY NIGHT...Partly cloudy. Lows in the lower 60s. Southeast
winds less than 10 mph.
.TUESDAY...Mostly sunny with a slight chance of showers and
thunderstorms. Highs in the upper 80s. Minimum RH 50 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.
$$
TNZ013-191945-
Campbell-
Including the cities of Fincastle, La Follette, Elk Valley,
Jellico, White Oak, Caryville, and Royal Blue
239 PM EDT Tue Aug 18 2026
Tonight Wed Wed Night Thu
Cloud Cover Mclear Mclear Pcldy Pcldy
Temp (24h trend) 62-67 (-5) 83-88 (+3) 66-71 81-86
RH % (24h trend) 95-100 (-2) 49-54 (-13) 94-99 65-70
RH Recovery Excellent Excellent
AM 20FT Wnd (mph) Lgt/Var Lgt/Var
PM 20FT Wnd (mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Transport Wnd (mph) N 5 NW 5 SE 5 W 10
Mixing Hgt(ft-agl) 330 4110 320 3550
Vent Rate (mph-ft) 1650 20550 1600 35500
Max Dispersion Early 3 Very Poor 14 Gen Poor 2 Very Poor 25 Fair
Max Dispersion Late 2 Very Poor 18 Gen Poor 3 Very Poor 32 Fair
Category Day 1 2 1 3
Max LVORI Early 6 7 5 7
Max LVORI Late 8 3 6 4
Precip Chance (%) 0 0 40 60
Precip Type None None Tstms Tstms
Precip Duration 1 2
Precip Amount 0.00 0.00 0.05 0.02
Precip Begin 3 AM Continuing
Precip End Continuing Continuing
Chance of Thunder (%) 0 0 20 40
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.THURSDAY NIGHT...Partly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the upper 60s. Light
winds.
.FRIDAY...Partly sunny with showers likely and a chance of
thunderstorms. Highs in the lower 80s. Minimum RH 73 percent.
Light winds.
.FRIDAY NIGHT...Partly cloudy with a slight chance of showers and
thunderstorms. Lows in the mid 60s. Northwest winds less than
10 mph.
.SATURDAY...Mostly sunny. Highs in the lower 80s. Minimum RH
58 percent. Northwest winds less than 10 mph.
.SATURDAY NIGHT...Mostly clear. Lows in the mid 60s. Northwest
winds less than 10 mph.
.SUNDAY...Sunny. Highs in the lower 80s. Minimum RH 53 percent.
Northwest winds less than 10 mph.
.SUNDAY NIGHT...Mostly clear. Lows in the lower 60s. North winds
less than 10 mph.
.MONDAY...Mostly sunny. Highs in the lower 80s. Minimum RH
54 percent. Southwest winds less than 10 mph.
.MONDAY NIGHT...Partly cloudy. Lows in the mid 60s. East winds
less than 10 mph.
.TUESDAY...Mostly sunny with a slight chance of showers and
thunderstorms. Highs in the mid 80s. Minimum RH 55 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.
$$
TNZ014-191945-
Claiborne-
Including the cities of Lone Mountain, Sandlick, Springdale,
Arthur, Harrogate-Shawanee, Clairfield, and Howard Quarter
239 PM EDT Tue Aug 18 2026
Tonight Wed Wed Night Thu
Cloud Cover Mclear Mclear Pcldy Pcldy
Temp (24h trend) 62-67 (-5) 85-90 (+2) 65-70 83-88
RH % (24h trend) 95-100 (-1) 44-49 (-13) 94-99 58-63
RH Recovery Excellent Excellent
AM 20FT Wnd (mph) Lgt/Var Lgt/Var
PM 20FT Wnd (mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Transport Wnd (mph) NE 3 NW 6 S 5 W 9
Mixing Hgt(ft-agl) 330 4250 340 3310
Vent Rate (mph-ft) 990 25500 1700 29790
Max Dispersion Early 3 Very Poor 14 Gen Poor 2 Very Poor 22 Fair
Max Dispersion Late 2 Very Poor 21 Fair 2 Very Poor 28 Fair
Category Day 1 2 1 3
Max LVORI Early 7 8 6 7
Max LVORI Late 9 2 7 3
Precip Chance (%) 0 0 40 50
Precip Type None None Tstms Tstms
Precip Duration 1 1
Precip Amount 0.00 0.00 0.04 0.06
Precip Begin 4 AM Continuing
Precip End Continuing Continuing
Chance of Thunder (%) 0 0 20 40
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.THURSDAY NIGHT...Mostly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the mid 60s. Light winds.
.FRIDAY...Partly sunny with showers likely and a chance of
thunderstorms. Highs in the mid 80s. Minimum RH 66 percent. Light
winds.
.FRIDAY NIGHT...Partly cloudy with a slight chance of showers and
thunderstorms. Lows in the mid 60s. Light and variable wind.
.SATURDAY...Mostly sunny with a slight chance of showers and
thunderstorms. Highs in the mid 80s. Minimum RH 53 percent. West
winds less than 10 mph.
.SATURDAY NIGHT...Mostly clear. Lows in the lower 60s. Northwest
winds less than 10 mph.
.SUNDAY...Sunny. Highs in the mid 80s. Minimum RH 49 percent.
Northwest winds less than 10 mph.
.SUNDAY NIGHT...Mostly clear. Lows in the lower 60s. North winds
less than 10 mph.
.MONDAY...Mostly sunny. Highs in the mid 80s. Minimum RH
48 percent. West winds less than 10 mph.
.MONDAY NIGHT...Partly cloudy. Lows in the lower 60s. Light and
variable wind.
.TUESDAY...Mostly sunny with a slight chance of showers and
thunderstorms. Highs in the mid 80s. Minimum RH 49 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.
$$
TNZ037-191945-
Union-
Including the cities of Maynardville, Norris Lake, Paulette,
Rose Hill, Sharps Chapel, and Luttrell
239 PM EDT Tue Aug 18 2026
Tonight Wed Wed Night Thu
Cloud Cover Mclear Mclear Mclear Pcldy
Temp (24h trend) 63-68 (-6) 86-91 (+2) 67-72 84-89
RH % (24h trend) 95-100 (-1) 46-51 (-11) 92-97 59-64
RH Recovery Excellent Excellent
AM 20FT Wnd (mph) Lgt/Var Lgt/Var
PM 20FT Wnd (mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Transport Wnd (mph) NE 3 NW 5 SE 5 W 8
Mixing Hgt(ft-agl) 340 4050 310 3360
Vent Rate (mph-ft) 1020 20250 1550 26880
Max Dispersion Early 3 Very Poor 11 Poor 1 Very Poor 21 Fair
Max Dispersion Late 2 Very Poor 16 Gen Poor 2 Very Poor 25 Fair
Category Day 1 2 1 3
Max LVORI Early 6 9 5 7
Max LVORI Late 9 3 7 3
Precip Chance (%) 0 0 30 40
Precip Type None None Tstms Tstms
Precip Duration 1 1
Precip Amount 0.00 0.00 0.04 0.02
Precip Begin 5 AM Continuing
Precip End Continuing Continuing
Chance of Thunder (%) 0 0 20 40
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.THURSDAY NIGHT...Partly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the upper 60s. Light
winds.
.FRIDAY...Partly sunny with showers likely and a chance of
thunderstorms. Highs in the mid 80s. Minimum RH 67 percent. Light
winds.
.FRIDAY NIGHT...Partly cloudy with a chance of showers and
thunderstorms. Lows in the mid 60s. Northwest winds less than
10 mph.
.SATURDAY...Mostly sunny. Highs in the mid 80s. Minimum RH
53 percent. West winds less than 10 mph.
.SATURDAY NIGHT...Mostly clear. Lows in the mid 60s. Northwest
winds less than 10 mph.
.SUNDAY...Sunny. Highs in the mid 80s. Minimum RH 49 percent.
Northwest winds less than 10 mph.
.SUNDAY NIGHT...Mostly clear. Lows in the lower 60s. North winds
less than 10 mph.
.MONDAY...Mostly sunny. Highs in the mid 80s. Minimum RH
48 percent. Northwest winds less than 10 mph.
.MONDAY NIGHT...Partly cloudy. Lows in the mid 60s. Northeast
winds less than 10 mph.
.TUESDAY...Mostly sunny with a slight chance of showers and
thunderstorms. Highs in the upper 80s. Minimum RH 50 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.
$$
TNZ036-191945-
Anderson-
Including the cities of Oak Ridge and Clinton
239 PM EDT Tue Aug 18 2026
Tonight Wed Wed Night Thu
Cloud Cover Mclear Mclear Mclear Pcldy
Temp (24h trend) 64-69 (-5) 86-91 (+2) 67-72 84-89
RH % (24h trend) 94-99 (-2) 46-51 (-10) 90-95 58-63
RH Recovery Excellent Excellent
AM 20FT Wnd (mph) Lgt/Var Lgt/Var
PM 20FT Wnd (mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Transport Wnd (mph) N 5 NW 5 S 5 W 9
Mixing Hgt(ft-agl) 340 4340 320 3550
Vent Rate (mph-ft) 1700 21700 1600 31950
Max Dispersion Early 4 Very Poor 13 Gen Poor 1 Very Poor 23 Fair
Max Dispersion Late 2 Very Poor 17 Gen Poor 2 Very Poor 28 Fair
Category Day 1 2 1 3
Max LVORI Early 6 7 5 6
Max LVORI Late 8 3 6 3
Precip Chance (%) 0 0 30 50
Precip Type None None Tstms Tstms
Precip Duration 1 1
Precip Amount 0.00 0.00 0.05 0.01
Precip Begin 5 AM Continuing
Precip End Continuing Continuing
Chance of Thunder (%) 0 0 20 40
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.THURSDAY NIGHT...Partly cloudy with a chance of showers and
thunderstorms. Lows in the upper 60s. Light winds.
.FRIDAY...Partly sunny with showers likely and a chance of
thunderstorms. Highs in the mid 80s. Minimum RH 66 percent. Light
winds.
.FRIDAY NIGHT...Partly cloudy with a chance of showers and
thunderstorms. Lows in the upper 60s. Northwest winds less than
10 mph.
.SATURDAY...Mostly sunny. Highs in the mid 80s. Minimum RH
54 percent. Northwest winds less than 10 mph.
.SATURDAY NIGHT...Mostly clear. Lows in the mid 60s. Northwest
winds less than 10 mph.
.SUNDAY...Sunny. Highs in the mid 80s. Minimum RH 49 percent.
Northwest winds less than 10 mph.
.SUNDAY NIGHT...Mostly clear. Lows in the lower 60s. North winds
less than 10 mph.
.MONDAY...Mostly sunny. Highs in the mid 80s. Minimum RH
49 percent. West winds less than 10 mph.
.MONDAY NIGHT...Partly cloudy. Lows in the mid 60s. North winds
less than 10 mph.
.TUESDAY...Mostly sunny with a slight chance of showers and
thunderstorms. Highs in the upper 80s. Minimum RH 51 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.
$$
TNZ069-191945-
Knox-
Including the cities of Bearden, Knoxville, and Lake Forest
239 PM EDT Tue Aug 18 2026
Tonight Wed Wed Night Thu
Cloud Cover Mclear Mclear Mclear Pcldy
Temp (24h trend) 65-70 (-5) 88-93 (+2) 68-73 87-92
RH % (24h trend) 94-99 (-3) 43-48 (-12) 89-94 54-59
RH Recovery Excellent Excellent
AM 20FT Wnd (mph) Lgt/Var Lgt/Var
PM 20FT Wnd (mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Transport Wnd (mph) N 3 NW 5 SE 5 SW 8
Mixing Hgt(ft-agl) 310 4360 330 3590
Vent Rate (mph-ft) 930 21800 1650 28720
Max Dispersion Early 3 Very Poor 11 Poor 1 Very Poor 21 Fair
Max Dispersion Late 2 Very Poor 17 Gen Poor 2 Very Poor 26 Fair
Category Day 1 2 1 3
Max LVORI Early 6 8 4 6
Max LVORI Late 8 2 7 3
Precip Chance (%) 0 0 20 40
Precip Type None None Showers Tstms
Precip Duration 1 1
Precip Amount 0.00 0.00 0.03 0.01
Precip Begin 6 AM Continuing
Precip End Continuing Continuing
Chance of Thunder (%) 0 0 0 40
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.THURSDAY NIGHT...Partly cloudy with a chance of showers and
thunderstorms. Lows around 70. Light winds.
.FRIDAY...Partly sunny with showers likely and a chance of
thunderstorms. Highs in the upper 80s. Minimum RH 63 percent.
Light winds.
.FRIDAY NIGHT...Partly cloudy with a chance of showers and
thunderstorms. Lows in the upper 60s. North winds less than
10 mph.
.SATURDAY...Mostly sunny. Highs in the upper 80s. Minimum RH
51 percent. West winds less than 10 mph.
.SATURDAY NIGHT...Mostly clear. Lows in the upper 60s. Northwest
winds less than 10 mph.
.SUNDAY...Sunny. Highs in the upper 80s. Minimum RH 46 percent.
Northwest winds less than 10 mph.
.SUNDAY NIGHT...Mostly clear. Lows in the mid 60s. Northeast
winds less than 10 mph.
.MONDAY...Mostly sunny. Highs in the upper 80s. Minimum RH
45 percent. Northwest winds less than 10 mph.
.MONDAY NIGHT...Partly cloudy. Lows in the mid 60s. Northeast
winds less than 10 mph.
.TUESDAY...Mostly sunny with a slight chance of showers and
thunderstorms. Highs around 90. Minimum RH 46 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.
$$
TNZ073-191945-
North Sevier-
Including the cities of Harrisburg, Kodak, McMahan, Sevierville,
Seymour, and Pigeon Forge
239 PM EDT Tue Aug 18 2026
Tonight Wed Wed Night Thu
Cloud Cover Pcldy Mclear Pcldy Pcldy
Temp (24h trend) 65-70 (-4) 87-92 (+2) 67-72 87-92
RH % (24h trend) 95-100 (-1) 43-48 (-14) 87-92 51-56
RH Recovery Excellent Excellent
AM 20FT Wnd (mph) Lgt/Var Lgt/Var
PM 20FT Wnd (mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Transport Wnd (mph) SE 3 NW 5 SW 3 W 8
Mixing Hgt(ft-agl) 290 3850 310 3410
Vent Rate (mph-ft) 870 19250 930 27280
Max Dispersion Early 2 Very Poor 11 Poor 1 Very Poor 19 Gen Poor
Max Dispersion Late 1 Very Poor 15 Gen Poor 2 Very Poor 23 Fair
Category Day 1 2 1 3
Max LVORI Early 7 8 5 6
Max LVORI Late 9 2 6 3
Precip Chance (%) 0 0 20 30
Precip Type None None None Tstms
Precip Duration 1
Precip Amount 0.00 0.00 0.01 0.01
Precip Begin 7 AM Continuing
Precip End Continuing Continuing
Chance of Thunder (%) 0 0 0 30
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.THURSDAY NIGHT...Partly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the upper 60s. Light
winds.
.FRIDAY...Partly sunny with showers likely and a chance of
thunderstorms. Highs in the upper 80s. Minimum RH 64 percent.
Light winds.
.FRIDAY NIGHT...Mostly cloudy with a chance of showers and
thunderstorms. Lows in the upper 60s. Southwest winds less than
10 mph.
.SATURDAY...Mostly sunny with a slight chance of showers and
thunderstorms. Highs in the mid 80s. Minimum RH 53 percent. West
winds less than 10 mph.
.SATURDAY NIGHT...Partly cloudy with a slight chance of showers.
Lows in the mid 60s. Southwest winds less than 10 mph.
.SUNDAY...Sunny. Highs in the mid 80s. Minimum RH 48 percent.
Northwest winds less than 10 mph.
.SUNDAY NIGHT...Partly cloudy. Lows in the lower 60s. Northeast
winds less than 10 mph.
.MONDAY...Mostly sunny. Highs in the mid 80s. Minimum RH
46 percent. Northwest winds less than 10 mph.
.MONDAY NIGHT...Partly cloudy. Lows in the mid 60s. Southeast
winds less than 10 mph.
.TUESDAY...Mostly sunny with a slight chance of showers and
thunderstorms. Highs in the upper 80s. Minimum RH 47 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.
$$
TNZ067-191945-
Roane-
Including the cities of Harriman, Eagle Furnace, Rockwood,
Bradbury, Fairview, Kingston, and Oliver Springs
239 PM EDT Tue Aug 18 2026
Tonight Wed Wed Night Thu
Cloud Cover Mclear Mclear Pcldy Pcldy
Temp (24h trend) 63-68 (-6) 89-94 (+3) 67-72 87-92
RH % (24h trend) 95-100 (0) 45-50 (-9) 93-98 58-63
RH Recovery Excellent Excellent
AM 20FT Wnd (mph) Lgt/Var Lgt/Var
PM 20FT Wnd (mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Transport Wnd (mph) N 3 NW 5 NW 3 SW 7
Mixing Hgt(ft-agl) 310 4330 310 3340
Vent Rate (mph-ft) 930 21650 930 23380
Max Dispersion Early 4 Very Poor 14 Gen Poor 2 Very Poor 16 Gen Poor
Max Dispersion Late 2 Very Poor 17 Gen Poor 2 Very Poor 19 Gen Poor
Category Day 1 2 1 2
Max LVORI Early 7 9 6 7
Max LVORI Late 10 3 7 3
Precip Chance (%) 0 0 40 40
Precip Type None None Tstms Tstms
Precip Duration 1 1
Precip Amount 0.00 0.00 0.06 0.01
Precip Begin 4 AM Continuing
Precip End Continuing Continuing
Chance of Thunder (%) 0 0 20 40
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.THURSDAY NIGHT...Partly cloudy with a chance of showers and
thunderstorms. Lows in the upper 60s. Light winds.
.FRIDAY...Partly sunny with showers likely and a chance of
thunderstorms. Highs in the upper 80s. Minimum RH 67 percent.
Light winds.
.FRIDAY NIGHT...Partly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the upper 60s. Light and
variable wind.
.SATURDAY...Mostly sunny. Highs in the upper 80s. Minimum RH
53 percent. Northwest winds less than 10 mph.
.SATURDAY NIGHT...Mostly clear. Lows in the mid 60s. Northwest
winds less than 10 mph.
.SUNDAY...Sunny. Highs in the upper 80s. Minimum RH 49 percent.
Northwest winds less than 10 mph.
.SUNDAY NIGHT...Mostly clear. Lows in the lower 60s. North winds
less than 10 mph.
.MONDAY...Mostly sunny. Highs in the upper 80s. Minimum RH
49 percent. Southwest winds less than 10 mph.
.MONDAY NIGHT...Partly cloudy. Lows in the mid 60s. Light and
variable wind.
.TUESDAY...Mostly sunny with a slight chance of showers and
thunderstorms. Highs around 90. Minimum RH 50 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.
$$
TNZ068-191945-
Loudon-
Including the cities of Lenoir City and Loudon
239 PM EDT Tue Aug 18 2026
Tonight Wed Wed Night Thu
Cloud Cover Mclear Mclear Pcldy Pcldy
Temp (24h trend) 64-69 (-5) 88-93 (+2) 67-72 88-93
RH % (24h trend) 95-100 (0) 44-49 (-11) 92-97 55-60
RH Recovery Excellent Excellent
AM 20FT Wnd (mph) Lgt/Var Lgt/Var
PM 20FT Wnd (mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Transport Wnd (mph) NE 3 NW 5 W 3 W 7
Mixing Hgt(ft-agl) 310 4250 310 3480
Vent Rate (mph-ft) 930 21250 930 24360
Max Dispersion Early 3 Very Poor 14 Gen Poor 1 Very Poor 16 Gen Poor
Max Dispersion Late 1 Very Poor 19 Gen Poor 2 Very Poor 20 Gen Poor
Category Day 1 2 1 2
Max LVORI Early 7 9 6 7
Max LVORI Late 10 2 7 3
Precip Chance (%) 0 0 20 30
Precip Type None None Tstms Tstms
Precip Duration 1 1
Precip Amount 0.00 0.00 0.03 0.01
Precip Begin 6 AM Continuing
Precip End Continuing Continuing
Chance of Thunder (%) 0 0 20 20
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.THURSDAY NIGHT...Partly cloudy with a chance of showers and
thunderstorms. Lows around 70. Light winds.
.FRIDAY...Partly sunny with a chance of showers and
thunderstorms. Highs in the upper 80s. Minimum RH 65 percent.
Light winds.
.FRIDAY NIGHT...Partly cloudy with a chance of showers and
thunderstorms. Lows in the upper 60s. North winds less than
10 mph.
.SATURDAY...Mostly sunny. Highs in the upper 80s. Minimum RH
52 percent. Northwest winds less than 10 mph.
.SATURDAY NIGHT...Mostly clear. Lows in the mid 60s. Northwest
winds less than 10 mph.
.SUNDAY...Sunny. Highs in the upper 80s. Minimum RH 48 percent.
Northwest winds less than 10 mph.
.SUNDAY NIGHT...Mostly clear. Lows in the mid 60s. Northeast
winds less than 10 mph.
.MONDAY...Mostly sunny. Highs in the upper 80s. Minimum RH
47 percent. Northwest winds less than 10 mph.
.MONDAY NIGHT...Partly cloudy. Lows in the mid 60s. Northeast
winds less than 10 mph.
.TUESDAY...Mostly sunny with a slight chance of showers and
thunderstorms. Highs around 90. Minimum RH 48 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.
$$
TNZ071-191945-
Northwest Blount-
Including the cities of Happy Valley, Maryville, and Alcoa
239 PM EDT Tue Aug 18 2026
Tonight Wed Wed Night Thu
Cloud Cover Mclear Mclear Pcldy Pcldy
Temp (24h trend) 65-70 (-5) 88-93 (+3) 68-73 88-93
RH % (24h trend) 95-100 (-2) 43-48 (-13) 86-91 53-58
RH Recovery Excellent Excellent
AM 20FT Wnd (mph) Lgt/Var Lgt/Var
PM 20FT Wnd (mph) N 5 Lgt/Var Lgt/Var W 5
Transport Wnd (mph) E 3 N 5 SE 3 SW 7
Mixing Hgt(ft-agl) 340 4100 330 3510
Vent Rate (mph-ft) 1020 20500 990 24570
Max Dispersion Early 3 Very Poor 14 Gen Poor 1 Very Poor 16 Gen Poor
Max Dispersion Late 1 Very Poor 17 Gen Poor 2 Very Poor 22 Fair
Category Day 1 2 1 2
Max LVORI Early 6 8 4 5
Max LVORI Late 8 2 5 3
Precip Chance (%) 0 0 0 20
Precip Type None None None Tstms
Precip Duration 1
Precip Amount 0.00 0.00 0.00 0.01
Precip Begin Continuing
Precip End Continuing
Chance of Thunder (%) 0 0 0 20
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.THURSDAY NIGHT...Partly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows around 70. Light winds.
.FRIDAY...Mostly sunny with showers likely and a chance of
thunderstorms. Highs in the upper 80s. Minimum RH 65 percent.
Light winds.
.FRIDAY NIGHT...Mostly cloudy with a chance of showers and
thunderstorms. Lows in the upper 60s. Southeast winds less than
10 mph.
.SATURDAY...Mostly sunny with a slight chance of showers and
thunderstorms. Highs in the upper 80s. Minimum RH 53 percent.
Northwest winds less than 10 mph.
.SATURDAY NIGHT...Mostly clear. Lows in the upper 60s. West winds
less than 10 mph.
.SUNDAY...Sunny. Highs in the upper 80s. Minimum RH 48 percent.
Northwest winds less than 10 mph.
.SUNDAY NIGHT...Partly cloudy. Lows in the mid 60s. Northeast
winds less than 10 mph.
.MONDAY...Mostly sunny. Highs in the upper 80s. Minimum RH
47 percent. Northwest winds less than 10 mph.
.MONDAY NIGHT...Partly cloudy. Lows in the mid 60s. East winds
less than 10 mph.
.TUESDAY...Mostly sunny with a slight chance of showers and
thunderstorms. Highs around 90. Minimum RH 47 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.
$$
TNZ086-191945-
Northwest Monroe-
Including the cities of Sweetwater, Madisonville,
and Bullet Creek
239 PM EDT Tue Aug 18 2026
Tonight Wed Wed Night Thu
Cloud Cover Mclear Mclear Pcldy Pcldy
Temp (24h trend) 64-69 (-5) 89-94 (+2) 67-72 89-94
RH % (24h trend) 95-100 (0) 41-46 (-12) 89-94 50-55
RH Recovery Excellent Excellent
AM 20FT Wnd (mph) Lgt/Var Lgt/Var
PM 20FT Wnd (mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Transport Wnd (mph) NE 3 N 6 S 6 SW 7
Mixing Hgt(ft-agl) 340 4030 330 3660
Vent Rate (mph-ft) 1020 24180 1980 25620
Max Dispersion Early 3 Very Poor 14 Gen Poor 1 Very Poor 16 Gen Poor
Max Dispersion Late 1 Very Poor 21 Fair 2 Very Poor 21 Fair
Category Day 1 2 1 2
Max LVORI Early 7 9 5 6
Max LVORI Late 10 2 6 3
Precip Chance (%) 0 0 20 20
Precip Type None None None Tstms
Precip Duration 1
Precip Amount 0.00 0.00 0.01 0.01
Precip Begin 7 AM Continuing
Precip End Continuing 2 PM
Chance of Thunder (%) 0 0 0 20
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.THURSDAY NIGHT...Partly cloudy with a chance of showers and
thunderstorms. Lows around 70. Light winds.
.FRIDAY...Mostly sunny with a chance of showers and
thunderstorms. Highs in the upper 80s. Minimum RH 63 percent.
Light winds.
.FRIDAY NIGHT...Partly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the upper 60s. Light and
variable wind.
.SATURDAY...Mostly sunny with a slight chance of showers and
thunderstorms. Highs in the upper 80s. Minimum RH 51 percent.
Northwest winds less than 10 mph.
.SATURDAY NIGHT...Mostly clear. Lows in the mid 60s. Light and
variable wind.
.SUNDAY...Sunny. Highs in the upper 80s. Minimum RH 46 percent.
Northwest winds less than 10 mph.
.SUNDAY NIGHT...Mostly clear. Lows in the mid 60s. Northeast
winds less than 10 mph.
.MONDAY...Mostly sunny. Highs in the upper 80s. Minimum RH
46 percent. Northwest winds less than 10 mph.
.MONDAY NIGHT...Partly cloudy. Lows in the mid 60s. Light and
variable wind.
.TUESDAY...Mostly sunny with a slight chance of showers and
thunderstorms. Highs around 90. Minimum RH 46 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.
$$
TNZ083-191945-
Rhea-
Including the cities of Dayton, Evensville, Old Washington,
Grandview, and Spring City
239 PM EDT Tue Aug 18 2026
Tonight Wed Wed Night Thu
Cloud Cover Mclear Mclear Pcldy Pcldy
Temp (24h trend) 63-68 (-6) 89-94 (+4) 67-72 87-92
RH % (24h trend) 95-100 (-1) 43-48 (-13) 89-94 57-62
RH Recovery Excellent Excellent
AM 20FT Wnd (mph) Lgt/Var Lgt/Var
PM 20FT Wnd (mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Transport Wnd (mph) N 3 NW 5 W 5 W 9
Mixing Hgt(ft-agl) 300 4230 310 3400
Vent Rate (mph-ft) 900 21150 1550 30600
Max Dispersion Early 3 Very Poor 13 Gen Poor 2 Very Poor 24 Fair
Max Dispersion Late 2 Very Poor 17 Gen Poor 2 Very Poor 29 Fair
Category Day 1 2 1 3
Max LVORI Early 7 8 5 6
Max LVORI Late 9 3 7 3
Precip Chance (%) 0 0 40 40
Precip Type None None Tstms Tstms
Precip Duration 1 1
Precip Amount 0.00 0.00 0.10 0.01
Precip Begin 4 AM Continuing
Precip End Continuing Continuing
Chance of Thunder (%) 0 0 20 40
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.THURSDAY NIGHT...Partly cloudy with a chance of showers and
thunderstorms. Lows in the upper 60s. Light winds.
.FRIDAY...Partly sunny with showers likely and a chance of
thunderstorms. Highs in the upper 80s. Minimum RH 68 percent.
Light winds.
.FRIDAY NIGHT...Partly cloudy with a slight chance of showers and
thunderstorms. Lows in the upper 60s. Light and variable wind.
.SATURDAY...Mostly sunny. Highs in the upper 80s. Minimum RH
55 percent. Northwest winds less than 10 mph.
.SATURDAY NIGHT...Mostly clear. Lows in the mid 60s. Northwest
winds less than 10 mph.
.SUNDAY...Sunny. Highs in the upper 80s. Minimum RH 50 percent.
Northwest winds less than 10 mph.
.SUNDAY NIGHT...Mostly clear. Lows in the mid 60s. North winds
less than 10 mph.
.MONDAY...Mostly sunny. Highs in the upper 80s. Minimum RH
50 percent. Southwest winds less than 10 mph.
.MONDAY NIGHT...Partly cloudy. Lows in the mid 60s. Light and
variable wind.
.TUESDAY...Mostly sunny with a slight chance of showers and
thunderstorms. Highs in the upper 80s. Minimum RH 52 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.
$$
TNZ084-191945-
Meigs-
Including the city of Big Spring
239 PM EDT Tue Aug 18 2026
Tonight Wed Wed Night Thu
Cloud Cover Mclear Mclear Pcldy Pcldy
Temp (24h trend) 64-69 (-6) 90-95 (+3) 68-73 89-94
RH % (24h trend) 95-100 (0) 41-46 (-11) 93-98 55-60
RH Recovery Excellent Excellent
AM 20FT Wnd (mph) Lgt/Var Lgt/Var
PM 20FT Wnd (mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Transport Wnd (mph) N 3 NW 5 SW 3 W 8
Mixing Hgt(ft-agl) 290 4090 280 3470
Vent Rate (mph-ft) 870 20450 840 27760
Max Dispersion Early 3 Very Poor 13 Gen Poor 1 Very Poor 21 Fair
Max Dispersion Late 2 Very Poor 17 Gen Poor 1 Very Poor 25 Fair
Category Day 1 2 1 3
Max LVORI Early 7 9 6 7
Max LVORI Late 10 2 8 3
Precip Chance (%) 0 0 30 30
Precip Type None None Tstms Tstms
Precip Duration 1 1
Precip Amount 0.00 0.00 0.12 0.01
Precip Begin 5 AM Continuing
Precip End Continuing Continuing
Chance of Thunder (%) 0 0 20 20
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.THURSDAY NIGHT...Partly cloudy with a chance of showers and
thunderstorms. Lows around 70. Light winds.
.FRIDAY...Partly sunny with showers likely and a chance of
thunderstorms. Highs around 90. Minimum RH 64 percent. Light
winds.
.FRIDAY NIGHT...Partly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the upper 60s. Light and
variable wind.
.SATURDAY...Mostly sunny. Highs around 90. Minimum RH 51 percent.
Northwest winds less than 10 mph.
.SATURDAY NIGHT...Mostly clear. Lows in the upper 60s. Northwest
winds less than 10 mph.
.SUNDAY...Sunny. Highs in the upper 80s. Minimum RH 47 percent.
Northwest winds less than 10 mph.
.SUNDAY NIGHT...Mostly clear. Lows in the mid 60s. North winds
less than 10 mph.
.MONDAY...Mostly sunny. Highs in the upper 80s. Minimum RH
46 percent. West winds less than 10 mph.
.MONDAY NIGHT...Partly cloudy. Lows in the upper 60s. Light and
variable wind.
.TUESDAY...Mostly sunny with a slight chance of showers and
thunderstorms. Highs in the lower 90s. Minimum RH 48 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.
$$
TNZ085-191945-
McMinn-
Including the cities of Athens, Clear Water, Dentville,
and Etowah
239 PM EDT Tue Aug 18 2026
Tonight Wed Wed Night Thu
Cloud Cover Mclear Mclear Pcldy Pcldy
Temp (24h trend) 64-69 (-6) 90-95 (+3) 67-72 89-94
RH % (24h trend) 95-100 (0) 39-44 (-11) 90-95 49-54
RH Recovery Excellent Excellent
AM 20FT Wnd (mph) Lgt/Var Lgt/Var
PM 20FT Wnd (mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Transport Wnd (mph) NE 3 N 6 S 5 W 7
Mixing Hgt(ft-agl) 300 4190 300 3570
Vent Rate (mph-ft) 900 25140 1500 24990
Max Dispersion Early 3 Very Poor 14 Gen Poor 1 Very Poor 18 Gen Poor
Max Dispersion Late 2 Very Poor 21 Fair 1 Very Poor 19 Gen Poor
Category Day 1 2 1 2
Max LVORI Early 6 9 6 7
Max LVORI Late 10 2 7 3
Precip Chance (%) 0 0 0 20
Precip Type None None None Tstms
Precip Duration 1
Precip Amount 0.00 0.00 0.00 0.01
Precip Begin Continuing
Precip End 2 PM
Chance of Thunder (%) 0 0 0 20
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.THURSDAY NIGHT...Partly cloudy with a chance of showers and
thunderstorms. Lows around 70. Light winds.
.FRIDAY...Mostly sunny with a chance of showers and
thunderstorms. Highs around 90. Minimum RH 61 percent. Light
winds.
.FRIDAY NIGHT...Partly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the upper 60s. Light and
variable wind.
.SATURDAY...Mostly sunny. Highs around 90. Minimum RH 49 percent.
Northwest winds less than 10 mph.
.SATURDAY NIGHT...Mostly clear. Lows in the upper 60s. Light and
variable wind.
.SUNDAY...Sunny. Highs in the upper 80s. Minimum RH 44 percent.
Northwest winds less than 10 mph.
.SUNDAY NIGHT...Mostly clear. Lows in the mid 60s. North winds
less than 10 mph.
.MONDAY...Mostly sunny. Highs in the upper 80s. Minimum RH
43 percent. Northwest winds less than 10 mph.
.MONDAY NIGHT...Partly cloudy. Lows in the mid 60s. Light and
variable wind.
.TUESDAY...Mostly sunny with a slight chance of showers and
thunderstorms. Highs in the lower 90s. Minimum RH 45 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.
$$
TNZ099-191945-
Hamilton-
Including the cities of Chattanooga, Lookout Mountain,
and Signal Mountain
239 PM EDT Tue Aug 18 2026
Tonight Wed Wed Night Thu
Cloud Cover Mclear Mclear Pcldy Pcldy
Temp (24h trend) 65-70 (-6) 91-96 (+3) 69-74 90-95
RH % (24h trend) 93-98 (-3) 36-41 (-13) 86-91 49-54
RH Recovery Excellent Excellent
AM 20FT Wnd (mph) Lgt/Var Lgt/Var
PM 20FT Wnd (mph) NW 5 Lgt/Var Lgt/Var Lgt/Var
Transport Wnd (mph) N 3 N 5 SE 5 W 8
Mixing Hgt(ft-agl) 330 4410 310 3590
Vent Rate (mph-ft) 990 22050 1550 28720
Max Dispersion Early 3 Very Poor 13 Gen Poor 1 Very Poor 24 Fair
Max Dispersion Late 2 Very Poor 21 Fair 2 Very Poor 28 Fair
Category Day 1 2 1 3
Max LVORI Early 6 7 4 6
Max LVORI Late 8 2 6 3
Precip Chance (%) 0 0 30 30
Precip Type None None Tstms Tstms
Precip Duration 1 1
Precip Amount 0.00 0.00 0.12 0.02
Precip Begin 5 AM Continuing
Precip End Continuing Continuing
Chance of Thunder (%) 0 0 20 20
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.THURSDAY NIGHT...Partly cloudy with a chance of showers and
thunderstorms. Lows in the lower 70s. Light winds.
.FRIDAY...Mostly sunny with a chance of showers and
thunderstorms. Highs around 90. Minimum RH 61 percent. Light
winds.
.FRIDAY NIGHT...Partly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the upper 60s. Northwest
winds less than 10 mph.
.SATURDAY...Mostly sunny. Highs around 90. Minimum RH 48 percent.
Northwest winds less than 10 mph.
.SATURDAY NIGHT...Mostly clear. Lows in the upper 60s. Northwest
winds less than 10 mph.
.SUNDAY...Sunny. Highs around 90. Minimum RH 45 percent.
Northwest winds less than 10 mph.
.SUNDAY NIGHT...Mostly clear. Lows in the mid 60s. North winds
less than 10 mph.
.MONDAY...Mostly sunny. Highs around 90. Minimum RH 43 percent.
Northwest winds less than 10 mph.
.MONDAY NIGHT...Partly cloudy. Lows in the upper 60s. North winds
less than 10 mph.
.TUESDAY...Mostly sunny with a slight chance of showers and
thunderstorms. Highs in the lower 90s. Minimum RH 46 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.
$$
TNZ100-191945-
Bradley-
Including the cities of Cleveland and Tasso
239 PM EDT Tue Aug 18 2026
Tonight Wed Wed Night Thu
Cloud Cover Mclear Mclear Pcldy Pcldy
Temp (24h trend) 65-70 (-6) 90-95 (+2) 68-73 90-95
RH % (24h trend) 95-100 (0) 37-42 (-10) 88-93 47-52
RH Recovery Excellent Excellent
AM 20FT Wnd (mph) Lgt/Var Lgt/Var
PM 20FT Wnd (mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Transport Wnd (mph) NE 3 N 6 S 6 W 7
Mixing Hgt(ft-agl) 310 4130 310 3570
Vent Rate (mph-ft) 930 24780 1860 24990
Max Dispersion Early 3 Very Poor 14 Gen Poor 1 Very Poor 20 Gen Poor
Max Dispersion Late 2 Very Poor 23 Fair 2 Very Poor 21 Fair
Category Day 1 2 1 2
Max LVORI Early 6 9 5 6
Max LVORI Late 9 2 6 3
Precip Chance (%) 0 0 0 20
Precip Type None None None Tstms
Precip Duration 1
Precip Amount 0.00 0.00 0.00 0.01
Precip Begin Continuing
Precip End 2 PM
Chance of Thunder (%) 0 0 0 20
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.THURSDAY NIGHT...Partly cloudy with a chance of showers and
thunderstorms. Lows in the lower 70s. Light winds.
.FRIDAY...Mostly sunny with a chance of showers and
thunderstorms. Highs in the lower 90s. Minimum RH 58 percent.
Light winds.
.FRIDAY NIGHT...Partly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the upper 60s. North
winds less than 10 mph.
.SATURDAY...Mostly sunny. Highs around 90. Minimum RH 47 percent.
North winds less than 10 mph.
.SATURDAY NIGHT...Mostly clear. Lows in the upper 60s. North
winds less than 10 mph.
.SUNDAY...Sunny. Highs around 90. Minimum RH 43 percent. North
winds less than 10 mph.
.SUNDAY NIGHT...Mostly clear. Lows in the mid 60s. North winds
less than 10 mph.
.MONDAY...Mostly sunny. Highs around 90. Minimum RH 41 percent.
Northwest winds less than 10 mph.
.MONDAY NIGHT...Partly cloudy. Lows in the upper 60s. East winds
less than 10 mph.
.TUESDAY...Mostly sunny with a slight chance of showers and
thunderstorms. Highs in the lower 90s. Minimum RH 43 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.
$$
TNZ101-191945-
West Polk-
Including the cities of Conasauga, Archville, Benton, Parksville,
and Reliance
239 PM EDT Tue Aug 18 2026
Tonight Wed Wed Night Thu
Cloud Cover Mclear Mclear Pcldy Pcldy
Temp (24h trend) 63-68 (-6) 90-95 (+3) 67-72 90-95
RH % (24h trend) 95-100 (0) 37-42 (-11) 89-94 45-50
RH Recovery Excellent Excellent
AM 20FT Wnd (mph) Lgt/Var Lgt/Var
PM 20FT Wnd (mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Transport Wnd (mph) NE 5 N 7 SE 3 W 7
Mixing Hgt(ft-agl) 350 3930 340 4040
Vent Rate (mph-ft) 1750 27510 1020 28280
Max Dispersion Early 2 Very Poor 17 Gen Poor 2 Very Poor 19 Gen Poor
Max Dispersion Late 2 Very Poor 23 Fair 2 Very Poor 24 Fair
Category Day 1 2 1 2
Max LVORI Early 6 9 4 6
Max LVORI Late 9 2 6 3
Precip Chance (%) 0 0 0 10
Precip Type None None None Showers
Precip Duration 1
Precip Amount 0.00 0.00 0.00 0.01
Precip Begin 8 AM
Precip End 2 PM
Chance of Thunder (%) 0 0 0 0
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.THURSDAY NIGHT...Partly cloudy with a chance of showers and
thunderstorms. Lows around 70. Light winds.
.FRIDAY...Mostly sunny with a chance of showers and
thunderstorms. Highs around 90. Minimum RH 57 percent. Light
winds.
.FRIDAY NIGHT...Partly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the upper 60s. Light and
variable wind.
.SATURDAY...Mostly sunny. Highs in the upper 80s. Minimum RH
47 percent. Northwest winds less than 10 mph.
.SATURDAY NIGHT...Mostly clear. Lows in the mid 60s. North winds
less than 10 mph.
.SUNDAY...Sunny. Highs in the upper 80s. Minimum RH 42 percent.
North winds less than 10 mph.
.SUNDAY NIGHT...Mostly clear. Lows in the lower 60s. Northeast
winds less than 10 mph.
.MONDAY...Mostly sunny. Highs in the upper 80s. Minimum RH
41 percent. Northwest winds less than 10 mph.
.MONDAY NIGHT...Mostly clear. Lows in the mid 60s. Light and
variable wind.
.TUESDAY...Mostly sunny with a slight chance of showers and
thunderstorms. Highs in the lower 90s. Minimum RH 42 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.
$$
TNZ082-191945-
Bledsoe-
Including the cities of Old Cumberland, Palio, Melvine,
Mount Crest, Pikeville, and Brayton
139 PM CDT Tue Aug 18 2026
Tonight Wed Wed Night Thu
Cloud Cover Mclear Mclear Pcldy Pcldy
Temp (24h trend) 61-66 (-6) 87-92 (+5) 66-71 86-91
RH % (24h trend) 95-100 (-1) 41-46 (-16) 87-92 58-63
RH Recovery Excellent Excellent
AM 20FT Wnd (mph) Lgt/Var Lgt/Var
PM 20FT Wnd (mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Transport Wnd (mph) N 3 NW 6 W 7 W 9
Mixing Hgt(ft-agl) 330 4040 320 3230
Vent Rate (mph-ft) 990 24240 2240 29070
Max Dispersion Early 3 Very Poor 13 Gen Poor 2 Very Poor 22 Fair
Max Dispersion Late 1 Very Poor 19 Gen Poor 2 Very Poor 28 Fair
Category Day 1 2 1 2
Max LVORI Early 7 8 4 6
Max LVORI Late 9 2 6 3
Precip Chance (%) 0 0 40 50
Precip Type None None Tstms Tstms
Precip Duration 1 1
Precip Amount 0.00 0.00 0.14 0.01
Precip Begin 2 AM Continuing
Precip End Continuing Continuing
Chance of Thunder (%) 0 0 20 40
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.THURSDAY NIGHT...Partly cloudy with a chance of showers and
thunderstorms. Lows in the upper 60s. Light winds.
.FRIDAY...Partly sunny with showers likely and a chance of
thunderstorms. Highs in the mid 80s. Minimum RH 68 percent. Light
winds.
.FRIDAY NIGHT...Partly cloudy with a slight chance of showers and
thunderstorms. Lows in the mid 60s. Northwest winds less than
10 mph.
.SATURDAY...Mostly sunny. Highs in the mid 80s. Minimum RH
56 percent. Northwest winds less than 10 mph.
.SATURDAY NIGHT...Mostly clear. Lows in the mid 60s. Northwest
winds less than 10 mph.
.SUNDAY...Sunny. Highs in the mid 80s. Minimum RH 52 percent.
Northwest winds less than 10 mph.
.SUNDAY NIGHT...Mostly clear. Lows in the lower 60s. North winds
less than 10 mph.
.MONDAY...Mostly sunny. Highs in the mid 80s. Minimum RH
50 percent. West winds less than 10 mph.
.MONDAY NIGHT...Partly cloudy. Lows in the mid 60s. Light and
variable wind.
.TUESDAY...Mostly sunny with a slight chance of showers and
thunderstorms. Highs in the upper 80s. Minimum RH 52 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.
$$
TNZ081-191945-
Sequatchie-
Including the cities of Cagle, Dunlap, Cartwright, and Lone Oak
139 PM CDT Tue Aug 18 2026
Tonight Wed Wed Night Thu
Cloud Cover Mclear Mclear Mclear Pcldy
Temp (24h trend) 62-67 (-5) 87-92 (+4) 67-72 86-91
RH % (24h trend) 94-99 (-4) 40-45 (-13) 86-91 56-61
RH Recovery Excellent Excellent
AM 20FT Wnd (mph) Lgt/Var Lgt/Var
PM 20FT Wnd (mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Transport Wnd (mph) N 3 N 6 SW 6 W 9
Mixing Hgt(ft-agl) 350 4330 320 3650
Vent Rate (mph-ft) 1050 25980 1920 32850
Max Dispersion Early 4 Very Poor 16 Gen Poor 2 Very Poor 22 Fair
Max Dispersion Late 2 Very Poor 22 Fair 2 Very Poor 28 Fair
Category Day 1 2 1 3
Max LVORI Early 6 7 4 5
Max LVORI Late 8 2 5 3
Precip Chance (%) 0 0 40 50
Precip Type None None Tstms Tstms
Precip Duration 1 1
Precip Amount 0.00 0.00 0.21 0.03
Precip Begin 2 AM Continuing
Precip End Continuing Continuing
Chance of Thunder (%) 0 0 20 30
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.THURSDAY NIGHT...Partly cloudy with a chance of showers and
thunderstorms. Lows in the upper 60s. Light winds.
.FRIDAY...Mostly sunny with a chance of showers and
thunderstorms. Highs in the mid 80s. Minimum RH 66 percent. Light
winds.
.FRIDAY NIGHT...Partly cloudy with a slight chance of showers and
thunderstorms. Lows in the mid 60s. Northwest winds less than
10 mph.
.SATURDAY...Sunny. Highs in the mid 80s. Minimum RH 54 percent.
Northwest winds less than 10 mph.
.SATURDAY NIGHT...Mostly clear. Lows in the mid 60s. Northwest
winds less than 10 mph.
.SUNDAY...Sunny. Highs in the mid 80s. Minimum RH 50 percent.
Northwest winds less than 10 mph.
.SUNDAY NIGHT...Mostly clear. Lows in the lower 60s. North winds
less than 10 mph.
.MONDAY...Mostly sunny. Highs in the mid 80s. Minimum RH
48 percent. West winds less than 10 mph.
.MONDAY NIGHT...Partly cloudy. Lows in the mid 60s. Light and
variable wind.
.TUESDAY...Mostly sunny with a slight chance of showers and
thunderstorms. Highs in the upper 80s. Minimum RH 51 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.
$$
TNZ098-191945-
Marion-
Including the cities of South Pittsburg, Haletown (Guild),
Jasper, Martin Springs, Whitwell, Powells Crossroads,
and Monteagle
139 PM CDT Tue Aug 18 2026
Tonight Wed Wed Night Thu
Cloud Cover Mclear Mclear Mclear Pcldy
Temp (24h trend) 63-68 (-5) 88-93 (+4) 68-73 87-92
RH % (24h trend) 90-95 (-8) 37-42 (-10) 85-90 52-57
RH Recovery Excellent Excellent
AM 20FT Wnd (mph) Lgt/Var Lgt/Var
PM 20FT Wnd (mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Transport Wnd (mph) N 5 N 5 SW 5 W 8
Mixing Hgt(ft-agl) 320 4360 300 3840
Vent Rate (mph-ft) 1600 21800 1500 30720
Max Dispersion Early 3 Very Poor 14 Gen Poor 2 Very Poor 23 Fair
Max Dispersion Late 1 Very Poor 22 Fair 2 Very Poor 29 Fair
Category Day 1 2 1 3
Max LVORI Early 5 7 4 5
Max LVORI Late 7 2 5 3
Precip Chance (%) 0 0 30 40
Precip Type None None Tstms Tstms
Precip Duration 1 1
Precip Amount 0.00 0.00 0.14 0.07
Precip Begin 2 AM Continuing
Precip End Continuing Continuing
Chance of Thunder (%) 0 0 20 20
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.THURSDAY NIGHT...Partly cloudy with a chance of showers and
thunderstorms. Lows around 70. Light winds.
.FRIDAY...Mostly sunny with a chance of showers and
thunderstorms. Highs in the upper 80s. Minimum RH 62 percent.
Light winds.
.FRIDAY NIGHT...Partly cloudy with a slight chance of showers and
thunderstorms. Lows in the upper 60s. North winds less than
10 mph.
.SATURDAY...Sunny. Highs in the upper 80s. Minimum RH 49 percent.
Northwest winds less than 10 mph.
.SATURDAY NIGHT...Mostly clear. Lows in the mid 60s. North winds
less than 10 mph.
.SUNDAY...Sunny. Highs in the upper 80s. Minimum RH 46 percent.
Northwest winds less than 10 mph.
.SUNDAY NIGHT...Mostly clear. Lows in the mid 60s. North winds
less than 10 mph.
.MONDAY...Mostly sunny. Highs in the upper 80s. Minimum RH
44 percent. Northwest winds less than 10 mph.
.MONDAY NIGHT...Partly cloudy. Lows in the mid 60s. North winds
less than 10 mph.
.TUESDAY...Mostly sunny with a slight chance of showers and
thunderstorms. Highs in the upper 80s. Minimum RH 48 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.
$$
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