Hazardous Weather Outlook
Hazardous Weather Outlook
National Weather Service Denver/Boulder CO
1000 AM MST Fri Nov 21 2025
COZ030>051-221700-
Jackson County Below 9000 Feet-
West Jackson and West Grand Counties Above 9000 Feet-
Grand and Summit Counties Below 9000 Feet-
South and East Jackson/Larimer/North and Northeast Grand/
Northwest Boulder Counties Above 9000 Feet-
South and Southeast Grand/West Central and Southwest Boulder/
Gilpin/Clear Creek/Summit/North and West Park Counties Above
9000 Feet-Larimer and Boulder Counties Between 6000 and 9000 Feet-
Jefferson and West Douglas Counties Above 6000 Feet/Gilpin/Clear
Creek/Northeast Park Counties Below 9000 Feet-
Central and Southeast Park County-
Larimer County Below 6000 Feet/Northwest Weld County-
Boulder And Jefferson Counties Below 6000 Feet/West Broomfield
County-
North Douglas County Below 6000 Feet/Denver/West Adams and
Arapahoe Counties/East Broomfield County-
Elbert/Central and East Douglas Counties Above 6000 Feet-
Northeast Weld County-Central and South Weld County-Morgan County-
Central and East Adams and Arapahoe Counties-
North and Northeast Elbert County Below 6000 Feet/North Lincoln
County-
Southeast Elbert County Below 6000 Feet/South Lincoln County-
Logan County-Washington County-Sedgwick County-Phillips County-
1000 AM MST Fri Nov 21 2025
This hazardous weather outlook is for northeast and north central
Colorado.
.DAY ONE...Today and Tonight
Lingering light rain showers on the plains will come to an end
this afternoon, while in the mountains scattered light snow
showers continue until about sunset. Any additional snow
accumulation in the mountains will be an inch or less, and roads
will be mostly wet.
.DAYS TWO THROUGH SEVEN...Saturday through Thursday
Another weather disturbance will move into the area Sunday and
Sunday night, bringing another chance of light rain for lower
elevations and light snow to high country. Generally minor travel
impacts will be possible in the mountains Sunday night.
The next chance of snow for the high country will arrive by Monday
night. This will be a colder system with slick road conditions
possible, but most accumulations are expected to stay light. It
will be windy and turning colder through Tuesday.
It now appears drier but still cool weather will then prevail for
Wednesday through Thanksgiving. There is just a chance of light
snow mainly for the mountains.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be needed.
$$
Hazardous Weather Outlook
National Weather Service Riverton WY
313 AM MST Fri Nov 21 2025
WYZ001>020-022>030-221415-
Yellowstone National Park-Absaroka Mountains-Cody Foothills-
North Bighorn Basin-Southwest Bighorn Basin-Southeast Bighorn Basin-
Owl Creek and Bridger Mountains-Bighorn Mountains West-
Bighorn Mountains Southeast-Northeast Johnson County-
Southeast Johnson County-Teton and Gros Ventre Mountains-
Jackson Hole-Wind River Mountains West-Wind River Mountains East-
Upper Wind River Basin-Wind River Basin-Lander Foothills-
Green Mountains and Rattlesnake Range-
Natrona County Lower Elevations-Casper Mountain-Star Valley-
Salt River and Wyoming Ranges-Upper Green River Basin Foothills-
Upper Green River Basin-South Lincoln County-
Rock Springs and Green River-Flaming Gorge-East Sweetwater County-
313 AM MST Fri Nov 21 2025
This Hazardous Weather Outlook is for Western and Central Wyoming.
.DAY ONE...Today and tonight.
Patchy areas of fog are possible during the morning mainly across
portions of southwestern, southern, and central WY. Fog should
gradually dissipate by the late morning. A few isolated showers may
be possible over far southern WY during the day.
.DAYS TWO THROUGH SEVEN...Saturday through Thanksgiving Day.
Monday through Wednesday... Potent disturbance looks to bring colder
temperatures and gusty winds. Light snow will also be possible
across western and far northern WY. Snow accumulations look minimal
at this time with an few inches possible in the mountains and a
coating for lower elevations. Some of the coldest temperatures of the
season look possible for Tuesday and Wednesday.
Thanksgiving Day... Another disturbance enters the region bringing
increased chances for snowfall across western and far northern WY.
Some impacts may be seen on western mountain passes however at this
time exact impacts remain uncertain at this time.
.SPOTTER INFORMATION STATEMENT...
Weather spotters are encouraged to report significant weather
conditions according to Standard Operating Procedures.
$$
Hazardous Weather Outlook
National Weather Service Cheyenne WY
300 AM MST Fri Nov 21 2025
NEZ002-003-019>021-054-055-095-096-WYZ101>119-221000-
Dawes County-Box Butte County-Scotts Bluff County-Banner County-
Morrill County-Kimball County-Cheyenne County-
Northern Sioux County-Southern Sioux County-
Converse County Lower Elevations-Niobrara County-
North Laramie Range-Ferris/Seminoe/Shirley Mountains-
Shirley Basin-Central Laramie Range and Southwest Platte County-
East Platte County-Goshen County-Central Carbon County-
North Snowy Range Foothills-Southwest Carbon County-
Sierra Madre Range-Upper North Platte River Basin-Snowy Range-
Laramie Valley-South Laramie Range-South Laramie Range Foothills-
Central Laramie County-East Laramie County-
300 AM MST Fri Nov 21 2025
This hazardous weather outlook is for portions of panhandle
Nebraska...east central Wyoming...south central Wyoming and
southeast Wyoming.
.DAY ONE...TODAY AND TONIGHT
Light rain showers will transition to a rain/snow mix around sunrise.
Accumulations of less than half an inch expected east of the Laramie
Range, with 1-2in possible in the higher elevations.
.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY
Second system with another shot of rain and possible snow hits our
southeastern zones early in the week with a deep Canadian low and
trough bringing notably colder temperatures just before and through
the holiday timeframe next week.
.Spotter information statement...
Spotter activation will not be needed.
$$
