Hazardous Weather Outlook
Hazardous Weather Outlook
National Weather Service Riverton WY
248 AM MST Tue Dec 9 2025
WYZ001>020-022>030-101400-
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-
248 AM MST Tue Dec 9 2025
...WINTER STORM WARNINGS REMAIN IN EFFECT FROM 5 PM THIS AFTERNOON
TO 5 PM MST WEDNESDAY...
...HIGH WIND WARNING IN EFFECT THROUGH WEDNESDAY EVENING...
This Hazardous Weather Outlook is for Western and Central Wyoming.
.DAY ONE...Today and tonight.
Moderate to heavy snowfall continues for western mountains. Please
see Winter Weather Products and forecasts for details.
Strong to high wind developing from Kemmerer through Rock Springs
and into Natrona County. Please see High Wind Warnings for
details.
.DAYS TWO THROUGH SEVEN...Wednesday through Monday.
Wednesday and Thursday...Snow likely in the western and northern
mountains. Strong to high wind continuing in southern Wyoming.
.SPOTTER INFORMATION STATEMENT...
Spotter activation is not expected at this time.
$$
Hazardous Weather Outlook
National Weather Service Cheyenne WY
456 AM MST Tue Dec 9 2025
NEZ002-003-019>021-054-055-095-096-WYZ101>119-101200-
Dawes County-Box Butte County-Scotts Bluff County-Banner County-
Morrill County-Kimball County-Cheyenne County-
Northern Sioux County-Southern Sioux County-
Converse County Lower Elevations-Niobrara County-
North Laramie Range-Ferris/Seminoe/Shirley Mountains-
Shirley Basin-Central Laramie Range and Southwest Platte County-
East Platte County-Goshen County-Central Carbon County-
North Snowy Range Foothills-Southwest Carbon County-
Sierra Madre Range-Upper North Platte River Basin-Snowy Range-
Laramie Valley-South Laramie Range-South Laramie Range Foothills-
Central Laramie County-East Laramie County-
456 AM MST Tue Dec 9 2025
This hazardous weather outlook is for portions of panhandle
Nebraska...east central Wyoming...south central Wyoming and
southeast Wyoming.
.DAY ONE...TODAY AND TONIGHT
- Damaging winds are expected near and in the lee of southeast
Wyoming mountain ranges through Tuesday afternoon. Gusts up
to 90 mph are expected.
- Cheyenne, Laramie, Rawlins, Wheatland, and Douglas can expect
wind gusts up to 75 mph through the day today.
- Wind gusts up to 65 mph are expected to spread into High
Plains mid morning into the afternoon.
- A cold front will bring a banded rain and snow showers late
this afternoon through the evening. This will also bring a
brief reprieve from the wind into Wednesday morning.
.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY
- Another strong wind event is expected to begin during the day
Wednesday and last at least into Thursday, and possibly Friday.
.Spotter information statement...
Spotter activation will not be needed.
$$
Hazardous Weather Outlook
National Weather Service Rapid City SD
435 AM MST Tue Dec 9 2025
SDZ001-002-012>014-032-073-078-101400-
Harding-Northern Perkins-Butte-Northern Meade Co Plains-Ziebach-
Haakon-Southern Meade Co Plains-Southern Perkins-
435 AM MST Tue Dec 9 2025
This Hazardous Weather Outlook is for portions of northwestern
South Dakota...and southwestern South Dakota.
.DAY ONE...Today and Tonight
Northwest winds will become strong today, with gusts of 50 to 65
mph. See the High Wind Warning (NPWUNR) for more information.
The Grassland Fire Danger will be in the high to extreme category
today.
.DAYS TWO THROUGH SEVEN...Wednesday through Monday
Unsettled and colder weather is expected for the second half of
the week, with daily chances of snow. Amounts are still uncertain
but could be moderate in some areas. Light freezing rain will also
be possible Wednesday night and Thursday morning.
.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
$$
Hazardous Weather Outlook
National Weather Service Rapid City SD
435 AM MST Tue Dec 9 2025
SDZ024-028-029-WYZ054>059-101400-
Northern Black Hills-Central Black Hills-Southern Black Hills-
Northern Campbell-Southern Campbell-Western Crook-
Wyoming Black Hills-Weston County Plains-Newcastle-
435 AM MST Tue Dec 9 2025
This Hazardous Weather Outlook is for portions of the Black Hills
of South Dakota...northeast Wyoming...and the Black Hills of
Wyoming.
.DAY ONE...Today and Tonight
Northwest winds will become strong today, with gusts of 45 to 55
mph.
.DAYS TWO THROUGH SEVEN...Wednesday through Monday
Unsettled and colder weather is expected for the second half of
the week, with daily chances of snow. Amounts are still uncertain
but could be moderate in some areas.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be needed today.
&&
Stay tuned to NOAA weather radio for further updates...or check
our web site at weather.gov/rapidcity
$$
Hazardous Weather Outlook
National Weather Service Rapid City SD
435 AM MST Tue Dec 9 2025
SDZ025>027-030-031-041>044-046-047-049-072-074>077-WYZ060-101400-
Northern Foothills-Rapid City-Southern Foothills-Custer Co Plains-
Pennington Co Plains-Western Fall River-Northern Oglala Lakota-
Northern Jackson-Bennett-Mellette-Todd-Tripp-
Sturgis/Piedmont Foothills-Hermosa Foothills-Eastern Fall River-
Southern Oglala Lakota-Southern Jackson-Northeastern Crook-
435 AM MST Tue Dec 9 2025 /535 AM CST Tue Dec 9 2025/
This Hazardous Weather Outlook is for portions of western South
Dakota and northeastern Wyoming.
.DAY ONE...Today and Tonight
Northwest winds will become strong today, with gusts of 50 to 65
mph. See the High Wind Warning (NPWUNR) for more information.
The Grassland Fire Danger will be in the high to extreme category
today.
.DAYS TWO THROUGH SEVEN...Wednesday through Monday
Unsettled and colder weather is expected for the second half of
the week, with daily chances of snow. Amounts are still uncertain
but could be moderate in some areas.
.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
$$
Hazardous Weather Outlook
National Weather Service Grand Junction CO
356 AM MST Tue Dec 9 2025
COZ001>014-017>023-UTZ022>025-027>029-101100-
Lower Yampa River Basin-Central Yampa River Basin-
Roan and Tavaputs Plateaus-Elkhead and Park Mountains-
Upper Yampa River Basin-Grand Valley-Debeque to Silt Corridor-
Central Colorado River Basin-Grand and Battlement Mesas-
Gore and Elk Mountains/Central Mountain Valleys-
Central Gunnison and Uncompahgre River Basin-
West Elk and Sawatch Mountains-Flat Tops-Upper Gunnison River Valley-
Uncompahgre Plateau and Dallas Divide-Northwest San Juan Mountains-
Southwest San Juan Mountains-Paradox Valley/Lower Dolores River-
Four Corners/Upper Dolores River-Animas River Basin-
San Juan River Basin-Southeast Utah-Eastern Uinta Mountains-
Eastern Uinta Basin-Tavaputs Plateau-Arches/Grand Flat-
La Sal and Abajo Mountains-Canyonlands/Natural Bridges-
356 AM MST Tue Dec 9 2025
This Hazardous Weather Outlook is for northwest Colorado, southwest
Colorado, west central Colorado, east central Utah, northeast Utah
and southeast Utah.
.DAY ONE...Today and tonight.
The northern Colorado mountains will see one last snow this afternoon
and overnight with accumulation of over six inches at the highest
elevations of the Park Range. Expect winter driving conditions
possible overnight on Rabbit Ears Pass with minimal if any impacts.
.DAYS TWO THROUGH SEVEN...Wednesday through Monday.
Snow ends in the northern Colorado mountains by about noon Wednesday.
Warm and dry weather moves in for the rest of the week into early
next week.
.SPOTTER INFORMATION STATEMENT...
Spotter activation is not expected today or tonight, however
spotters are encouraged to report snowfall amounts to the
National Weather Service in Grand Junction.
$$
Hazardous Weather Outlook
National Weather Service Denver/Boulder CO
1038 AM MST Mon Dec 8 2025
COZ030>051-091745-
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-
1038 AM MST Mon Dec 8 2025
This hazardous weather outlook is for northeast and north central
Colorado.
.DAY ONE...Today and Tonight
The mountains and foothills will see strengthening winds tonight,
particularly after midnight, when a High Wind Warning goes into
effect. Wind-prone locations, especially north of I-70 and east
of the Continental Divide, are expected to see gusts 65 to 85 mph
through sunrise Tuesday. Travel will be difficult for high profile
vehicles, and damage to trees and powerlines will be possible.
.DAYS TWO THROUGH SEVEN...Tuesday through Sunday
Strong winds will continue across the mountains and foothills,
peaking during the day Tuesday with maximum gusts 75 to 90 mph.
At times, some of these winds may spread into adjacent lower
elevations, especially west of I-25 near the base of the
foothills, and across northern Larimer and Weld Counties.
Light snow expected Wednesday and Thursday for the northern
mountains. Strong winds return Wednesday night into Thursday
morning, with gusts up to 75 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.
$$
