Winter Storm Warning
URGENT - WINTER WEATHER MESSAGE
National Weather Service San Diego CA
340 AM PST Thu Nov 20 2025
CAZ055-056-202300-
/O.CON.KSGX.WS.W.0004.251121T0000Z-251122T0000Z/
San Bernardino County Mountains-Riverside County Mountains-
Including the cities of Big Bear Lake and Big Bear City
340 AM PST Thu Nov 20 2025
...WINTER STORM WARNING REMAINS IN EFFECT FROM 4 PM THIS AFTERNOON
TO 4 PM PST FRIDAY ABOVE 6500 FT...
* WHAT...Heavy wet snow expected above 6500 feet with accumulating
snow as low as 5500 to 6000 feet early Friday morning. Through
Friday afternoon, snowfall of 3 to 6 inches is expected from 6000
to 7000 feet, 6 to 10 inches from 7000 to 7500 feet, and 10 to 14
inches above 7500 feet. Scattered snow showers will continue for
Friday night into Saturday with additional snowfall of 2 to 5
inches.
* WHERE...Riverside County Mountains and San Bernardino County
Mountains above 6500 feet.
* WHEN...From 4 PM this afternoon to 4 PM PST Friday.
* IMPACTS...Travel could be very difficult to impossible. The
hazardous conditions could impact the Thursday evening and Friday
morning commutes.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. The latest road conditions for
the state you are calling from can be obtained by calling 5 1 1.
&&
$$
17
Freeze Warning
URGENT - WEATHER MESSAGE
National Weather Service Tucson AZ
245 AM MST Thu Nov 20 2025
AZZ503-507>509-210000-
/O.CON.KTWC.FZ.W.0009.251121T0900Z-251121T1600Z/
Upper Santa Cruz River Valley/Altar Valley-Upper San Pedro River
Valley-Eastern Cochise County below 5000 feet-Upper Gila River
Valley-
Including the cities of Willcox, Douglas, Benson, Nogales, Sierra
Vista, Safford, and Clifton
245 AM MST Thu Nov 20 2025
...FREEZE WARNING REMAINS IN EFFECT FROM 2 AM TO 9 AM MST FRIDAY...
* WHAT...Sub-freezing temperatures between 24 to 32 degrees expected.
* WHERE...Eastern Cochise County below 5000 feet, Sulphur Springs
Valley, Upper San Pedro River Valley, and Upper Santa Cruz River
Valley/Altar Valley.
* WHEN...From 2 AM to 9 AM MST Friday.
* IMPACTS...Frost and freeze conditions could kill crops, other
sensitive vegetation and possibly damage unprotected outdoor
plumbing.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Take steps now to protect tender plants from the cold.
To prevent water pipes from freezing; wrap or drain or allow them to
drip slowly.
&&
$$
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
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.
$$
