Freeze Warning
URGENT - WEATHER MESSAGE
National Weather Service Tucson AZ
245 AM MST Thu Nov 20 2025
AZZ503-507>509-210000-
/O.CON.KTWC.FZ.W.0009.251121T0900Z-251121T1600Z/
Upper Santa Cruz River Valley/Altar Valley-Upper San Pedro River
Valley-Eastern Cochise County below 5000 feet-Upper Gila River
Valley-
Including the cities of Willcox, Douglas, Benson, Nogales, Sierra
Vista, Safford, and Clifton
245 AM MST Thu Nov 20 2025
...FREEZE WARNING REMAINS IN EFFECT FROM 2 AM TO 9 AM MST FRIDAY...
* WHAT...Sub-freezing temperatures between 24 to 32 degrees expected.
* WHERE...Eastern Cochise County below 5000 feet, Sulphur Springs
Valley, Upper San Pedro River Valley, and Upper Santa Cruz River
Valley/Altar Valley.
* WHEN...From 2 AM to 9 AM MST Friday.
* IMPACTS...Frost and freeze conditions could kill crops, other
sensitive vegetation and possibly damage unprotected outdoor
plumbing.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Take steps now to protect tender plants from the cold.
To prevent water pipes from freezing; wrap or drain or allow them to
drip slowly.
&&
$$
CWR
Winter Weather Advisory
URGENT - WINTER WEATHER MESSAGE
National Weather Service Las Vegas NV
206 AM PST Thu Nov 20 2025
NVZ018-202300-
/O.EXA.KVEF.WW.Y.0011.251120T2100Z-251121T1600Z/
Sheep Range-
Including the cities of Hayford Pk
206 AM PST Thu Nov 20 2025
...WINTER WEATHER ADVISORY IN EFFECT FROM 1 PM THIS AFTERNOON TO 8
AM PST FRIDAY...
* WHAT...Snow expected. Total snow accumulations between 2 and 5
inches above 6000 feet; between 5 and 8 inches above 8000 feet.
* WHERE...Sheep Range.
* WHEN...From 1 PM this afternoon to 8 AM PST Friday.
* IMPACTS...Travel could be very difficult.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Slow down and use caution while traveling. Call 5 1 1 for road
information.
&&
$$
URGENT - WINTER WEATHER MESSAGE
National Weather Service Las Vegas NV
206 AM PST Thu Nov 20 2025
NVZ019-202300-
/O.CON.KVEF.WW.Y.0011.251120T2100Z-251121T1600Z/
Spring Mountains-Red Rock Canyon-
Including the cities of Red Rock Canyon and Mt Charleston
206 AM PST Thu Nov 20 2025
...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 1 PM THIS
AFTERNOON TO 8 AM PST FRIDAY...
* WHAT...Snow expected. Total snow accumulations between 2 and 5
inches above 6000 feet; between 5 and 8 inches above 8000 feet;
between 8 and 12 inches above 9500 feet.
* WHERE...Spring Mountains-Red Rock Canyon.
* WHEN...From 1 PM this afternoon to 8 AM PST Friday.
* IMPACTS...Travel could be very difficult to impossible,
particularly along State Routes 156, 157, and 158.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Slow down and use caution while traveling. Call 5 1 1 for road
information.
&&
$$
For more information from the National Weather Service visit
http://weather.gov/lasvegas
JCS
Flood Watch
Flood Watch
National Weather Service Phoenix AZ
117 AM MST Thu Nov 20 2025
AZZ541-542-545-547-557-201300-
/O.CON.KPSR.FA.A.0008.000000T0000Z-251120T1300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Cave Creek/New River-Deer Valley-New River Mesa-Rio Verde/Salt
River-Mazatzal Mountains-
Including the cities of Scottsdale, Sunflower, Peoria, and
Tortilla Flat
117 AM MST Thu Nov 20 2025
...FLOOD WATCH REMAINS IN EFFECT UNTIL 6 AM MST EARLY THIS MORNING...
* WHAT...Flooding caused by excessive rainfall continues to be
possible.
* WHERE...A portion of south central Arizona, including the
following areas, Cave Creek/New River, Deer Valley, Mazatzal
Mountains, New River Mesa and Rio Verde/Salt River.
* WHEN...Until 6 AM MST early this morning.
* IMPACTS...Excessive runoff may result in flooding of rivers,
creeks, streams, and other low-lying and flood-prone locations.
Creeks and streams may rise out of their banks. Low-water
crossings may be flooded.
* ADDITIONAL DETAILS...
- Rainfall amounts of one half to one inch have already fallen
across much of the watch area saturating soils. Additional
rainfall, which could be moderate to heavy at times, is
likely to occur through this morning which will cause
flooding concerns.
- http://www.weather.gov/safety/flood
PRECAUTIONARY/PREPAREDNESS ACTIONS...
You should monitor later forecasts and be alert for possible Flood
Warnings. Those living in areas prone to flooding should be prepared
to take action should flooding develop.
&&
$$
KB
Hazardous Weather Outlook
Hazardous Weather Outlook
National Weather Service Grand Junction CO
155 AM MST Thu Nov 20 2025
COZ001>014-017>023-UTZ022>025-027>029-210900-
Lower Yampa River Basin-Central Yampa River Basin-
Roan and Tavaputs Plateaus-Elkhead and Park Mountains-
Upper Yampa River Basin-Grand Valley-Debeque to Silt Corridor-
Central Colorado River Basin-Grand and Battlement Mesas-
Gore and Elk Mountains/Central Mountain Valleys-
Central Gunnison and Uncompahgre River Basin-
West Elk and Sawatch Mountains-Flat Tops-Upper Gunnison River Valley-
Uncompahgre Plateau and Dallas Divide-Northwest San Juan Mountains-
Southwest San Juan Mountains-Paradox Valley/Lower Dolores River-
Four Corners/Upper Dolores River-Animas River Basin-
San Juan River Basin-Southeast Utah-Eastern Uinta Mountains-
Eastern Uinta Basin-Tavaputs Plateau-Arches/Grand Flat-
La Sal and Abajo Mountains-Canyonlands/Natural Bridges-
155 AM MST Thu Nov 20 2025
This Hazardous Weather Outlook is for northwest Colorado, southwest
Colorado, west central Colorado, east central Utah, northeast Utah
and southeast Utah.
.DAY ONE...Today and tonight.
Accumulating snowfall is likely, mainly for the San Juans today
shifting into the central and northern mountains tonight. Expect a
few isolated thundershowers generally south of I-70 through the
afternoon with lightning and gusty winds the primary threats.
.DAYS TWO THROUGH SEVEN...Friday through Wednesday.
Light accumulating snowfall is likely, mainly for central and
northern Colorado mountains Friday. The San Juan Mountains could see
another round of light snow showers Sunday into early next week with
little if any impacts.
.SPOTTER INFORMATION STATEMENT...
Spotter activation is not expected today or tonight, however
spotters are encouraged to report snowfall amounts to the
National Weather Service in Grand Junction.
$$
