Hazardous Weather Outlook
Hazardous Weather Outlook
National Weather Service Riverton WY
219 AM MST Thu Dec 11 2025
WYZ001>020-022>030-121400-
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-
219 AM MST Thu Dec 11 2025
...High Wind Warning until 5 am this morning from Rock Springs
through Casper...
This Hazardous Weather Outlook is for Western and Central Wyoming.
.DAY ONE...Today and Tonight.
Strong wind this morning will gradually decrease through the day.
Rain will change to snow across northern Wyoming tonight.
.DAYS TWO THROUGH SEVEN...Friday through Wednesday.
Friday...Light snow continuing in northern Wyoming.
Tuesday and Wednesday...Chances for snow returning to western
Wyoming. Strong wind possible East of the Divide.
.SPOTTER INFORMATION STATEMENT...
Weather spotters are encouraged to report significant weather
conditions according to Standard Operating Procedures.
$$
Hazardous Weather Outlook
National Weather Service Cheyenne WY
524 AM MST Thu Dec 11 2025
NEZ002-003-019>021-054-055-095-096-WYZ102-108-121230-
Dawes County-Box Butte County-Scotts Bluff County-Banner County-
Morrill County-Kimball County-Cheyenne County-
Northern Sioux County-Southern Sioux County-Niobrara County-
Goshen County-
524 AM MST Thu Dec 11 2025
This hazardous weather outlook is for portions of panhandle
Nebraska...east central Wyoming and southeast Wyoming.
.DAY ONE...TODAY AND TONIGHT
Long duration high wind event will continue today across much of
southeast Wyoming. Gusts up to 80 mph are expected in the wind
prone areas, with gusts up to 70 mph possible across the high
plains and high valleys. Winds will slowly diminish tonight.
.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY
The probability for widespread hazardous weather is low.
.Spotter information statement...
Spotter activation will not be needed.
$$
Hazardous Weather Outlook
National Weather Service Cheyenne WY
524 AM MST Thu Dec 11 2025
WYZ101-103>107-109>119-121230-
Converse County Lower Elevations-North Laramie Range-
Ferris/Seminoe/Shirley Mountains-Shirley Basin-
Central Laramie Range and Southwest Platte County-
East Platte 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-
524 AM MST Thu Dec 11 2025
This hazardous weather outlook is for portions of east central
Wyoming...south central Wyoming and southeast Wyoming.
.DAY ONE...TODAY AND TONIGHT
An arctic cold front will slide south across the region later
today and this evening. Temperatures are expected to drop by 30 to
40 degrees.
.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY
Some light snow expected behind the arctic front. Snow
accumulations will generally be less than 2 inches.
.Spotter information statement...
Spotter activation will not be needed.
$$
Hazardous Weather Outlook
National Weather Service Rapid City SD
249 AM MST Thu Dec 11 2025
SDZ001-012-024-025-027>030-041>044-046-047-049-074>077-WYZ054>060-
121300-
Harding-Butte-Northern Black Hills-Northern Foothills-
Southern Foothills-Central Black Hills-Southern Black Hills-
Custer Co Plains-Western Fall River-Northern Oglala Lakota-
Northern Jackson-Bennett-Mellette-Todd-Tripp-Hermosa Foothills-
Eastern Fall River-Southern Oglala Lakota-Southern Jackson-
Northern Campbell-Southern Campbell-Western Crook-
Wyoming Black Hills-Weston County Plains-Newcastle-
Northeastern Crook-
249 AM MST Thu Dec 11 2025 /349 AM CST Thu Dec 11 2025/
This Hazardous Weather Outlook is for portions of western South
Dakota and northeastern Wyoming.
.DAY ONE...Today and Tonight
Light snow is possible tonight with accumulations of up to an inch
possible.
.DAYS TWO THROUGH SEVEN...Friday through Wednesday
Unsettled and cooler weather is expected Friday and Saturday with
accumulating light snowfall possible. 3 to 5 inches of snow are
possible across the Black Hills into northwestern and south
central South Dakota.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be needed today.
&&
Stay tuned to NOAA weather radio for further updates...or check
our web site at weather.gov/rapidcity
$$
Hazardous Weather Outlook
National Weather Service Denver/Boulder CO
932 AM MST Wed Dec 10 2025
COZ030>051-111645-
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-
932 AM MST Wed Dec 10 2025
HIGH WIND WARNING IN EFFECT FOR THE FRONT RANGE MOUNTAINS AND
NORTHERN FOOTHILLS FROM 11 AM THIS MORNING TO 11 AM MST
THURSDAY...
This hazardous weather outlook is for northeast and north central
Colorado.
.DAY ONE...Today and Tonight
Strong winds gusting up to 80 mph will impact the high country
this afternoon and tonight. For the foothill and adjacent plains,
expect westerly wind gusts up to 45-50 mph at times this
afternoon.
Light snow showers in the northern mountains will diminish by this
afternoon, with dry conditions prevailing for the rest of the day.
Minimal snow accumulations expected.
.DAYS TWO THROUGH SEVEN...Thursday through Tuesday
Strong winds will continue Thursday morning across the Front
Range Mountains and northern foothills before significantly
decreasing through the afternoon and overnight hours. Above
normal temperatures and dry conditions are expected to persist
over the weekend, with no precipitation expected across the
forecast area.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be needed today or tonight.
$$
