Hazardous Weather Outlook
Hazardous Weather Outlook
National Weather Service Riverton WY
319 AM MST Wed Dec 10 2025
WYZ001>020-022>030-111430-
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-
319 AM MST Wed Dec 10 2025
...WINTER STORM WARNING AND WINTER WEATHER ADVISORY REMAINS IN
EFFECT UNTIL 5 PM MST WEDNESDAY...
...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 5 AM MST THURSDAY...
This Hazardous Weather Outlook is for Western and Central Wyoming.
.DAY ONE...Today and tonight.
Moderate snowfall continues for western mountains. Please see Winter
Weather Products and forecasts for details.
Strong to high wind continues from Rock Springs and into Natrona
County. Please see High Wind Warnings for details.
.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.
Thursday...Snow likely for portions of the northern mountains.
Strong to high wind continuing in southern Wyoming.
.SPOTTER INFORMATION STATEMENT...
Weather spotters are encouraged to report significant weather
conditions according to Standard Operating Procedures.
$$
Hazardous Weather Outlook
National Weather Service Cheyenne WY
413 AM MST Wed Dec 10 2025
NEZ002-003-019>021-054-055-095-096-WYZ101>119-111115-
Dawes County-Box Butte County-Scotts Bluff County-Banner County-
Morrill County-Kimball County-Cheyenne County-
Northern Sioux County-Southern Sioux County-
Converse County Lower Elevations-Niobrara County-
North Laramie Range-Ferris/Seminoe/Shirley Mountains-
Shirley Basin-Central Laramie Range and Southwest Platte County-
East Platte County-Goshen County-Central Carbon County-
North Snowy Range Foothills-Southwest Carbon County-
Sierra Madre Range-Upper North Platte River Basin-Snowy Range-
Laramie Valley-South Laramie Range-South Laramie Range Foothills-
Central Laramie County-East Laramie County-
413 AM MST Wed Dec 10 2025
This hazardous weather outlook is for portions of panhandle
Nebraska...east central Wyoming...south central Wyoming and
southeast Wyoming.
.DAY ONE...TODAY AND TONIGHT
- The long duration high wind event will resume mid Wednesday
morning in Carbon and Albany county, then spread into the I-25
corridor during the afternoon. Strong winds will last into
Thursday evening.
- The wind prone areas along I-80 and I-25 can expect another
round of wind gusts between 70 and 80 mph. A few gusts
exceeding 80 mph are possible.
- Cheyenne, Laramie, Rawlins, and Wheatland can expect wind
gusts between 60 and 70 mph, but occasional lulls or breaks in
the high winds are expected with this round.
.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY
- High winds continue into Thursday evening. Another round of high
winds is possible in the wind prone areas of southeast Wyoming
Friday evening into early Saturday.
.Spotter information statement...
Spotter activation will not be needed.
$$
Hazardous Weather Outlook
National Weather Service Rapid City SD
339 AM MST Wed Dec 10 2025
SDZ001-002-012>014-032-078-111400-
Harding-Northern Perkins-Butte-Northern Meade Co Plains-Ziebach-
Haakon-Southern Perkins-
339 AM MST Wed Dec 10 2025
This Hazardous Weather Outlook is for portions of northwestern
South Dakota...and southwestern South Dakota.
.DAY ONE...Today and Tonight
Snow will fall across northwest to central South Dakota today,
then transition to rain early this evening. With subfreezing
temperatures across the area, the rain will fall as freezing
rain, resulting in ice accumulations of up to a tenth of an inch.
The freezing rain will end Thursday morning as temperatures
recover above freezing.
.DAYS TWO THROUGH SEVEN...Thursday through Tuesday
Unsettled and colder weather is expected Thursday night through
Saturday, with light snow falling during much of this time.
Moderate snow amounts will be possible.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be needed today.
&&
Stay tuned to NOAA weather radio for further updates...or check
our web site at weather.gov/rapidcity
$$
Hazardous Weather Outlook
National Weather Service Grand Junction CO
304 AM MST Wed Dec 10 2025
COZ001>014-017>023-UTZ022>025-027>029-111015-
Lower Yampa River Basin-Central Yampa River Basin-
Roan and Tavaputs Plateaus-Elkhead and Park Mountains-
Upper Yampa River Basin-Grand Valley-Debeque to Silt Corridor-
Central Colorado River Basin-Grand and Battlement Mesas-
Gore and Elk Mountains/Central Mountain Valleys-
Central Gunnison and Uncompahgre River Basin-
West Elk and Sawatch Mountains-Flat Tops-Upper Gunnison River Valley-
Uncompahgre Plateau and Dallas Divide-Northwest San Juan Mountains-
Southwest San Juan Mountains-Paradox Valley/Lower Dolores River-
Four Corners/Upper Dolores River-Animas River Basin-
San Juan River Basin-Southeast Utah-Eastern Uinta Mountains-
Eastern Uinta Basin-Tavaputs Plateau-Arches/Grand Flat-
La Sal and Abajo Mountains-Canyonlands/Natural Bridges-
304 AM MST Wed Dec 10 2025
This Hazardous Weather Outlook is for northwest Colorado, southwest
Colorado, west central Colorado, east central Utah, northeast Utah
and southeast Utah.
.DAY ONE...Today and tonight.
Light snow will continue over the northern Colorado mountains this
morning through the early afternoon, with accumulations of 2 to 5
inches over the highest elevations of the Park Range. Expect winter
driving conditions possible due to snow and blowing snow on Rabbit
Ears Pass with minimal if any impacts.
.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.
No hazardous weather is expected at this time.
.SPOTTER INFORMATION STATEMENT...
Spotter activation is not expected today or tonight, however
spotters are encouraged to report snowfall amounts to the
National Weather Service in Grand Junction.
$$
Hazardous Weather Outlook
National Weather Service Denver/Boulder CO
1041 AM MST Tue Dec 9 2025
COZ030>051-101745-
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-
1041 AM MST Tue Dec 9 2025
This hazardous weather outlook is for northeast and north central
Colorado.
.DAY ONE...Today and Tonight
Strong winds gusting 65 to 80 mph will continue to impact much of
the leeward slopes, foothills, and northern plains along the
Wyoming state line through this afternoon, before diminishing this
evening. Winds will remain breezy overnight in the high country,
but should fall below high wind criteria by midnight for almost
all locations. The northern mountains, especially the Park Range
and Medicine Bow Range, will see light snow develop this evening
and continue through Wednesday afternoon. A few inches of
accumulation may make conditions slick on Rabbit Ears Pass and
Cameron Pass.
.DAYS TWO THROUGH SEVEN...Wednesday through Monday
Strong winds return Wednesday afternoon into Thursday morning,
with gusts up to 70 mph possible at times across the high
country. Wind-prone areas could see gusty winds as well along the
foothills.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be needed today or tonight.
$$
