Hazardous Weather Outlook
Hazardous Weather Outlook...CORRECTED
National Weather Service Riverton WY
254 AM MST Fri Dec 5 2025
WYZ001>020-022>030-061400-
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-
254 AM MST Fri Dec 5 2025
...WINTER STORM WARNING REMAINS IN EFFECT FOR THE TETON AND GROS
VENTRE MOUNTAINS AND THE SALT RIVER AND WYOMING RANGES UNTIL 2 PM
MST SATURDAY...
...WINTER WEATHER ADVISORY REMAINS IN EFFECT FOR YELLOWSTONE NATIONAL
PARK AND THE ABSAROKA MOUNTAINS UNTIL 2 PM MST SATURDAY...
...WINTER WEATHER ADVISORY REMAINS IN EFFECT FOR THE BIGHORN MOUNTAINS
WEST UNTIL 2 PM MST SATURDAY...
...WINTER WEATHER ADVISORY REMAINS IN EFFECT FOR THE UPPER GREEN RIVER
BASIN FOOTHILLS AND WIND RIVER MOUNTAINS WEST UNTIL 2 PM MST SATURDAY...
...WINTER WEATHER ADVISORY REMAINS IN EFFECT FOR JACKSON HOLE AND
STAR VALLEY UNTIL 2 PM MST SATURDAY...
This Hazardous Weather Outlook is for Western and Central Wyoming.
.DAY ONE...Today and tonight.
Moderate to heavy snow this afternoon through the overnight hours
across the Western Mountains, Jackson and Star Valleys, the Upper
Green River Basin, and the northern portions of the western Bighorns.
Gusty winds combined with heavy snow could cause reduced
visibilities and hazardous travel.
Widespread breezy to gusty winds across much of the area this
afternoon, with gusts up to 30 mph across the Wind Corridor, the
Absarokas, and eastern Wind River Mountains.
Wind gusts of 40 to 50 mph are expected after sunset across the
western mountains, the Wind Corridor, and the Wind River Basin.
.DAYS TWO THROUGH SEVEN...Saturday through Thursday.
Saturday...Light snow across western Wyoming and the western
Bighorns. Gusty across the area. Wind gusts of 40 to 50 mph across
the western mountains, northern Johnson County, the Wind River Basin,
and southern Wyoming. Gusts of 60 mph are possible in wind prone
locations, especially Sweetwater County.
Sunday through Thursday...Multiple chances for snow across western
Wyoming and widespread breezy to gusty winds.
.SPOTTER INFORMATION STATEMENT...
Weather spotters are encouraged to report significant weather
conditions according to Standard Operating Procedures.
$$
Hazardous Weather Outlook
National Weather Service Grand Junction CO
337 AM MST Fri Dec 5 2025
COZ001>014-017>023-UTZ022>025-027>029-061045-
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-
337 AM MST Fri Dec 5 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.
Snow tapers off in most areas today before the next round arrives to
the northern Colorado mountains late this evening. Significant
amounts are mainly expected across the Park and Gore Ranges with
travel impacts along Highway 40 from Milner to Rabbit Ears Pass today.
A more robust round of snow and wind will then impact the northern
and more of the central mountains of Colorado and adjacent valleys
beginning tonight
.DAYS TWO THROUGH SEVEN...Saturday through Thursday.
Moderate to heavy snow showers continue through the northern and
central Colorado mountains and adjacent valleys Saturday through
early Sunday. Plan for significant snow accumulations with travel
impacts including road closures likely with this winter storm. The
northern Colorado mountains are likely to see additional periods of
light to moderate snow showers through the upcoming work 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 Cheyenne WY
322 AM MST Fri Dec 5 2025
NEZ002-003-019>021-054-055-095-096-WYZ101>119-061030-
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-
322 AM MST Fri Dec 5 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
- Winds remain elevated through Friday morning in the wind prone
areas. Another round of High Wind Warnings will be likely Friday
night into Saturday.
- Areas of blowing snow may impact travel conditions in the
wind prone areas of southeast Wyoming.
.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY
- Prolonged period of mountain snow expected through Sunday
morning. Winter Storm Warnings have been issued for Sierra
Madre and Snowy Ranges.
.Spotter information statement...
Spotter activation will not be needed.
$$
Hazardous Weather Outlook
National Weather Service Rapid City SD
257 AM MST Fri Dec 5 2025
SDZ024-WYZ057-061400-
Northern Black Hills-Wyoming Black Hills-
257 AM MST Fri Dec 5 2025
This Hazardous Weather Outlook is for portions of the Black Hills
of South Dakota...and the Black Hills of Wyoming.
.DAY ONE...Today and Tonight
Light snow is expected today. Most of the accumulating snow will
fall this morning. Totals up to 2 inches of snow are expected.
.DAYS TWO THROUGH SEVEN...Saturday through Thursday
Periodic bouts of light snow are expected through the weekend.
The best chance for snow accumulation will be over northwestern
South Dakota and the northern Black Hills, with a total of 1-4
inches.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be needed today.
&&
Stay tuned to NOAA weather radio for further updates...or check
our web site at weather.gov/rapidcity
$$
Hazardous Weather Outlook
National Weather Service Denver/Boulder CO
1129 AM MST Thu Dec 4 2025
COZ030>051-051830-
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-
1129 AM MST Thu Dec 4 2025
This hazardous weather outlook is for northeast and north central
Colorado.
.DAY ONE...Today and Tonight
Snow returns to the northern mountains tonight, heaviest towards
Rabbit Ears Pass. Roads are expected to become slick and hazardous
overnight in the mountains.
.DAYS TWO THROUGH SEVEN...Friday through Wednesday
Additional mountain snow is expected Friday evening through
Sunday morning. Travel could be very difficult across the
mountains Friday night through Sunday morning, due to heavy
snowfall and blowing snow.
Across the plains, dry conditions are expected this weekend into
next week, with a gradual warming trend likely.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be needed today or tonight.
$$
