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.
$$
Hazardous Weather Outlook
National Weather Service Cheyenne WY
245 PM MST Wed Dec 3 2025
NEZ002-003-019>021-054-055-095-096-WYZ101>119-042145-
Dawes County-Box Butte County-Scotts Bluff County-Banner County-
Morrill County-Kimball County-Cheyenne County-
Northern Sioux County-Southern Sioux County-
Converse County Lower Elevations-Niobrara County-
North Laramie Range-Ferris/Seminoe/Shirley Mountains-
Shirley Basin-Central Laramie Range and Southwest Platte County-
East Platte County-Goshen County-Central Carbon County-
North Snowy Range Foothills-Southwest Carbon County-
Sierra Madre Range-Upper North Platte River Basin-Snowy Range-
Laramie Valley-South Laramie Range-South Laramie Range Foothills-
Central Laramie County-East Laramie County-
245 PM MST Wed Dec 3 2025
This hazardous weather outlook is for portions of panhandle
Nebraska...east central Wyoming...south central Wyoming and
southeast Wyoming.
.DAY ONE...THIS AFTERNOON AND TONIGHT
Slick conditions linger across portions of southeast Wyoming this
afternoon.
Patchy fog may develop tonight into Thursday morning.
.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY
- Winds will pick up again Thursday morning in the wind prone
areas. Another round of High Wind Warnings have been issued.
- Areas of blowing snow Thursday may impact travel conditions
in the wind prone areas of southeast Wyoming.
- Long term remains active with multiple systems promoting
prolonged periods of high winds, light snow and cold but
steadily warming temperatures.
.Spotter information statement...
Spotter activation will not be needed.
$$
Hazardous Weather Outlook
National Weather Service Denver/Boulder CO
1020 AM MST Wed Dec 3 2025
COZ030>051-041730-
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-
1020 AM MST Wed Dec 3 2025
This hazardous weather outlook is for northeast and north central
Colorado.
.DAY ONE...Today and Tonight
Snow will slowly decrease and come to an end this afternoon over
much of the area. For areas south of I-70, snow may linger into
the early evening. Additional snowfall of up to 3 inches will be
possible, heaviest in the southern foothills and over the Palmer
Divide. Travel will continue to be slow and hazardous today, with
possible deteriorating conditions towards sunset as temperatures
fall.
.DAYS TWO THROUGH SEVEN...Thursday through Tuesday
A warming trend will begin on Thursday and continue through the
long term period. Additional waves of mountain snow are expected
beginning Thursday night, with a more pronounced uptick in
accumulations starting late Friday night and Saturday. Expect some
slick conditions if traveling in the mountains through Saturday,
especially for mountain passes. Warming temperatures and dry
conditions are expected across the plains.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be needed today or tonight.
$$
Hazardous Weather Outlook
National Weather Service Rapid City SD
1019 AM MST Wed Dec 3 2025
SDZ001-002-012>014-024>032-041>044-046-047-049-072>078-WYZ054>060-
041400-
Harding-Northern Perkins-Butte-Northern Meade Co Plains-Ziebach-
Northern Black Hills-Northern Foothills-Rapid City-
Southern Foothills-Central Black Hills-Southern Black Hills-
Custer Co Plains-Pennington Co Plains-Haakon-Western Fall River-
Northern Oglala Lakota-Northern Jackson-Bennett-Mellette-Todd-
Tripp-Sturgis/Piedmont Foothills-Southern Meade Co Plains-
Hermosa Foothills-Eastern Fall River-Southern Oglala Lakota-
Southern Jackson-Southern Perkins-Northern Campbell-
Southern Campbell-Western Crook-Wyoming Black Hills-
Weston County Plains-Newcastle-Northeastern Crook-
1019 AM MST Wed Dec 3 2025 /1119 AM CST Wed Dec 3 2025/
This Hazardous Weather Outlook is for portions of western South
Dakota and northeastern Wyoming.
.DAY ONE...Today and Tonight
Leftover light snow will taper off this morning and afternoon
with minor additional accumulation.
.DAYS TWO THROUGH SEVEN...Thursday through Tuesday
Periodic bouts of light snow are expected through the weekend.
The best chance for snow accumulation will be over the northern
Black Hills.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be needed today.
&&
Stay tuned to NOAA weather radio for further updates...or check
our web site at weather.gov/rapidcity
$$
Hazardous Weather Outlook
National Weather Service Grand Junction CO
333 AM MST Wed Dec 3 2025
COZ001>014-017>023-UTZ022>025-027>029-041045-
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-
333 AM MST Wed Dec 3 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.
Winter Weather Advisories continue today with snow gradually
tapering off north of I-70 by late this afternoon. However, a surge
of additional snowfall will work across the Central Mountains and
the San Juans this afternoon and into the overnight hours. Advisories
will continue overnight across our southern mountains. Snowpacked
mountain passes can be expected for commuters this evening and early
Thursday morning.
.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.
Mostly sunny skies and cool conditions are expected across the region
Thursday. A few remnant snow showers on the southern San Juans could
produce another inch or so of snow, but that all wraps up Thursday
afternoon. A persistent stretch of active weather and more snow for
the northern mountains and down to the I-70 corridor is looking
increasingly likely Friday and beyond. Steady northwest flow will
keep temperatures on the cold side of climatology during this
stretch.
.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.
$$
