Hazardous Weather Outlook
Hazardous Weather Outlook
National Weather Service Riverton WY
129 AM MST Wed Dec 3 2025
WYZ001>020-022>030-041230-
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-
129 AM MST Wed Dec 3 2025
This Hazardous Weather Outlook is for Western and Central Wyoming.
.DAY ONE...Today and Tonight.
Areas of blowing snow possible across Interstate 80 through the
morning, as winds subside.
Winds gusts of 35 to 50 mph will be possible late tonight north of
Cody and the Upper Wind River Basin.
Areas of fog will develop over portions of Yellowstone NP tonight,
and possibly spreading into northern portions of the Jackson Valley.
.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.
Thursday through Saturday night...Periods of snow will begin over
northwestern portions Thursday afternoon and spreading to far western
portions Thursday night. A break in the snow is possible Friday
afternoon, before starting again Friday night and ending late
Saturday night. Snowfall amounts of 1 to 2 feet is possible in the
western mountains and amounts approaching 12 inches in the
Jackson/Star Valleys over this 3 day period.
.SPOTTER INFORMATION STATEMENT...
Weather spotters are encouraged to report significant weather
conditions according to Standard Operating Procedures.
$$
Hazardous Weather Outlook
National Weather Service Cheyenne WY
331 PM MST Tue Dec 2 2025
NEZ002-003-019>021-054-055-095-096-WYZ101>119-032245-
Dawes County-Box Butte County-Scotts Bluff County-Banner County-
Morrill County-Kimball County-Cheyenne County-
Northern Sioux County-Southern Sioux County-
Converse County Lower Elevations-Niobrara County-
North Laramie Range-Ferris/Seminoe/Shirley Mountains-
Shirley Basin-Central Laramie Range and Southwest Platte County-
East Platte County-Goshen County-Central Carbon County-
North Snowy Range Foothills-Southwest Carbon County-
Sierra Madre Range-Upper North Platte River Basin-Snowy Range-
Laramie Valley-South Laramie Range-South Laramie Range Foothills-
Central Laramie County-East Laramie County-
331 PM MST Tue Dec 2 2025
This hazardous weather outlook is for portions of panhandle
Nebraska...east central Wyoming...south central Wyoming and
southeast Wyoming.
.DAY ONE...THIS AFTERNOON AND TONIGHT
- Another round of light snow will move through the area this
evening through Wednesday morning.
- Most areas can expect between a dusting and an inch of snow,
but a few inches will be possible between Rawlins and
Cheyenne.
.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY
- Long term remains active with multiple systems promoting
prolonged periods of high winds, light snow and cold but
steadily warming temperatures.
.Spotter information statement...
Spotters are encouraged to report snow accumulation to the
National Weather Service in Cheyenne.
$$
Hazardous Weather Outlook
National Weather Service Denver/Boulder CO
1115 AM MST Tue Dec 2 2025
COZ030>051-031815-
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-
1115 AM MST Tue Dec 2 2025
This hazardous weather outlook is for northeast and north central
Colorado.
.DAY ONE...This Afternoon and Tonight
Light snow showers will continue across the mountains today, with
a gradual increase in coverage by this evening. Snow is then
expected to shift into the Front Range and I-25 corridor overnight
tonight. Slick travel conditions will be possible, especially
overnight into Wednesday morning.
.DAYS TWO THROUGH SEVEN...Wednesday through Monday
Snow will continue through the day Wednesday across the mountains
and I-25 corridor. The heaviest accumulations are expected across
the highest elevations of the Front Range Mountains and the Park
Range, where hazardous travel conditions are expected to develop.
Snow will also likely impact the Wednesday morning commute across
the Denver metro and Palmer Divide, with less impacts across the
eastern plains. Snow should taper off by Wednesday afternoon or
evening, with some slick conditions still possible for the evening
commute for areas generally south of I-76.
Temperatures are still on track to moderate through the week with
a few chances for light mountain snow showers under northwest
flow aloft through the rest of the forecast period.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be needed, but snowfall reports will
be appreciated.
$$
Hazardous Weather Outlook
National Weather Service Rapid City SD
410 AM MST Tue Dec 2 2025
SDZ024-WYZ057-031300-
Northern Black Hills-Wyoming Black Hills-
410 AM MST Tue Dec 2 2025
This Hazardous Weather Outlook is for portions of the Black Hills
of South Dakota...and the Black Hills of Wyoming.
.DAY ONE...Today and Tonight
A Winter Weather Advisory is in effect for this afternoon and
tonight. See WSWUNR for details.
.DAYS TWO THROUGH SEVEN...Wednesday through Monday
No hazardous weather is expected at this time.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be needed today.
&&
Stay tuned to NOAA weather radio for further updates...or check
our web site at weather.gov/rapidcity
$$
Hazardous Weather Outlook
National Weather Service Rapid City SD
410 AM MST Tue Dec 2 2025
WYZ054-056-031300-
Northern Campbell-Western Crook-
410 AM MST Tue Dec 2 2025
This Hazardous Weather Outlook is for portions of northeast
Wyoming.
.DAY ONE...Today and Tonight
Light snow will occur, especially tonight. Around an inch or two
of snow accumulation is expected, especially near the Montana
border.
.DAYS TWO THROUGH SEVEN...Wednesday through Monday
No hazardous weather is expected at this time.
.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
237 AM MST Tue Dec 2 2025
COZ001>014-017>023-UTZ022>025-027>029-030945-
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-
237 AM MST Tue Dec 2 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.
Another frontal boundary settles into the region today. Light snow
showers will develop north to south this morning and into the
afternoon. Winter Weather Advisories are in place for the Park and
Elkhead Ranges, as well as areas west of Vail Pass and the northern
San Juans. Snow will continue through the evening and overnight hours
with persistent light accumulations. Mountain passes are expected to
be snow packed and slick this evening and into Wednesday morning.
.DAYS TWO THROUGH SEVEN...Wednesday through Monday.
Snow will taper off Wednesday afternoon, ending completely late
evening. Another disturbance comes into view this weekend with more
measurable snow favoring our northern mountains. Temperatures remain
on the cool side of climatology through the period.
.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.
$$
