Winter Storm Warning
URGENT - WINTER WEATHER MESSAGE
National Weather Service Great Falls MT
346 AM MST Sat Dec 6 2025
MTZ317-320-062100-
/O.CON.KTFX.WS.W.0019.000000T0000Z-251206T2100Z/
Little Belt and Highwood Mountains-Big Belt, Bridger and Castle
Mountains-
Including the following locations: Maudlow, Monarch, Trident,
Kings Hill Pass, Bozeman Pass, Deep Creek Pass, Neihart, and
Battle Ridge Pass
346 AM MST Sat Dec 6 2025
...WINTER STORM WARNING REMAINS IN EFFECT
UNTIL 2 PM MST THIS AFTERNOON...
* WHAT...Heavy snow. Additional snow accumulations 3 to 6 inches.
Winds gusting as high as 40 mph.
* WHERE...Big Belt, Bridger and Castle Mountains and Little Belt and
Highwood Mountains.
* WHEN...Until 2 PM MST this afternoon.
* IMPACTS...Roads, and especially bridges and overpasses, will
likely become slick and hazardous.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. The latest road conditions can
be obtained by calling 5 1 1 or visiting the MDT Road Report website.
&&
$$
URGENT - WINTER WEATHER MESSAGE
National Weather Service Great Falls MT
346 AM MST Sat Dec 6 2025
MTZ327-070000-
/O.CON.KTFX.WS.W.0019.000000T0000Z-251207T0000Z/
Northwest Beaverhead County-
Including the following locations: Wisdom, Chief Joseph Pass, Big
Hole Pass, Wise River, and Dewey
346 AM MST Sat Dec 6 2025
...WINTER STORM WARNING REMAINS IN EFFECT
UNTIL 5 PM MST THIS AFTERNOON...
* WHAT...Heavy snow. Additional snow accumulations 4 to 9 inches.
Winds gusting as high as 50 mph.
* WHERE...Northwest Beaverhead County.
* WHEN...Until 5 PM MST this afternoon.
* IMPACTS...Roads, and especially bridges and overpasses, will
likely become slick and hazardous.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. The latest road conditions can
be obtained by calling 5 1 1 or visiting the MDT Road Report website.
&&
$$
URGENT - WINTER WEATHER MESSAGE
National Weather Service Great Falls MT
346 AM MST Sat Dec 6 2025
MTZ330-070000-
/O.EXT.KTFX.WS.W.0019.000000T0000Z-251207T0400Z/
Gallatin and Madison County Mountains and Centennial Mountains-
Including the following locations: West Yellowstone, Raynolds
Pass, Targhee Pass, and Big Sky
346 AM MST Sat Dec 6 2025
...WINTER STORM WARNING NOW IN EFFECT UNTIL 9 PM MST THIS EVENING...
* WHAT...Heavy snow. Additional snow accumulations 3 to 6 inches.
Winds gusting as high as 45 mph.
* WHERE...Gallatin and Madison County Mountains and Centennial
Mountains.
* WHEN...Until 9 PM MST this evening.
* IMPACTS...Roads, and especially bridges and overpasses, will
likely become slick and hazardous.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. The latest road conditions can
be obtained by calling 5 1 1 or visiting the MDT Road Report website.
&&
$$
URGENT - WINTER WEATHER MESSAGE
National Weather Service Pocatello ID
158 AM MST Sat Dec 6 2025
IDZ058>066-061800-
/O.EXT.KPIH.WS.W.0008.000000T0000Z-251206T1800Z/
Marsh and Arbon Highlands-Franklin/Eastern Oneida Region-Bear
River Range-Bear Lake Valley-Blackfoot Mountains-Caribou Range-
Big Hole Mountains-Teton Valley-Centennial Mountains - Island
Park-
Including the cities of Grace, Ashton, Lava Hot Springs, Tetonia,
Montpelier, McCammon, Thatcher, St. Charles, Malad, Kilgore,
Bone, Swan Valley, Inkom, Preston, Downey, Soda Springs, Island
Park, Wayan, Georgetown, Henry, Driggs, Victor, and Emigration
Summit
158 AM MST Sat Dec 6 2025
...WINTER STORM WARNING NOW IN EFFECT UNTIL 11 AM MST THIS MORNING...
* WHAT...Heavy snow generally above valley floors. Additional snow
accumulations of 6 to 10 inches above 6500 ft elevation. The Bear
River and Caribou Ranges could see additional accumulations of 12
to 18 inches. Very gusty winds overnight may cause areas of
blowing and drifting snowfall.
* WHERE...Big Hole Mountains, Centennial Mountains - Island Park,
Teton Valley, Bear Lake Valley, Bear River Range, Blackfoot
Mountains, Caribou Range, Franklin/Eastern Oneida Region, and
Marsh and Arbon Highlands.
* WHEN...Until 11 AM MST this morning.
* IMPACTS...Travel could be very difficult to impossible. The
hazardous conditions could impact Saturday morning travel.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. Call 5 1 1 or visit
511.idaho.gov for the latest road conditions.
&&
$$
URGENT - WINTER WEATHER MESSAGE
National Weather Service Billings MT
150 AM MST Sat Dec 6 2025
MTZ067-068-070700-
/O.EXT.KBYZ.WS.W.0017.000000T0000Z-251207T0700Z/
Absaroka/Beartooth Mountains-Crazy Mountains-
Including the locations of Cooke City
150 AM MST Sat Dec 6 2025
...WINTER STORM WARNING NOW IN EFFECT UNTIL MIDNIGHT MST TONIGHT...
* WHAT...Periods of moderate to heavy snow, strong winds and blowing
snow. Additional snow accumulations between 8 and 15 inches. Winds
gusting as high as 60 mph on the mountain tops.
* WHERE...Absaroka/Beartooth Mountains and Crazy Mountains.
* WHEN...Until midnight MST tonight.
* IMPACTS...Mountain recreation will be impacted by heavy
accumulating snow and blowing snow.
* ADDITIONAL DETAILS...The heaviest snowfall will occur on west and
northwest facing slopes, including the mountains near Cooke City.
The mountains around Red Lodge will see much less snowfall, 1 to 5
inches.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Those in the backcountry should ensure they are prepared for
dangerous winter conditions.
&&
$$
URGENT - WINTER WEATHER MESSAGE
National Weather Service Riverton WY
1251 AM MST Sat Dec 6 2025
WYZ012-024-062100-
/O.CON.KRIW.WS.W.0012.000000T0000Z-251206T2100Z/
Teton and Gros Ventre Mountains-Salt River and Wyoming Ranges-
1251 AM MST Sat Dec 6 2025
...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 2 PM MST THIS
AFTERNOON...
* WHAT...Heavy snow. Additional snow accumulations of 5 to 12
inches, with higher elevations seeing an additional 15 to 20
inches. Gusty winds of 30 to 45 mph will be common. Gusts of 60
mph are possible across the highest elevations.
* WHERE...Teton and Gros Ventre Mountains and Salt River and Wyoming
Ranges.
* WHEN...Until 2 PM MST this afternoon.
* IMPACTS...Travel could be very difficult, especially over Teton,
Togwotee, and Salt River Passes. The hazardous conditions could
impact travel through midday Saturday.
* ADDITIONAL DETAILS...Periods of moderate to heavy snow are
possible through Noon Saturday. Snow and gusty winds could cause
reduced visibilities and drifting snow.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency.
For graphical depictions of the snowfall forecast, including the
official NWS forecast, high end amounts, and low end amounts, visit
https://weather.gov/riw/winter .
For winter road conditions from the Wyoming Department of
Transportation, visit https://wyoroad.info .
&&
$$
URGENT - WINTER WEATHER MESSAGE
National Weather Service Salt Lake City UT
941 PM MST Fri Dec 5 2025
UTZ108-061945-
/O.CON.KSLC.WS.W.0007.000000T0000Z-251207T1200Z/
Wasatch Back-
Including the following locations - Park City, Heber City, and
Huntsville
941 PM MST Fri Dec 5 2025
...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST SUNDAY...
* WHAT...Heavy snow. Total snow accumulations between 6 to 12 inches
above 5500 feet and 2 to 6 inches below 5500 feet.
* WHERE...Wasatch Back.
* WHEN...Until 5 AM MST Sunday.
* IMPACTS...Winter driving conditions are expected.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. For winter road conditions
from the Utah Department of Transportation, visit
http://www.udottraffic.utah.gov.
For graphical depictions of the snowfall forecast, including
Official NWS Forecast, High End Amount, and Low End Amount, visit
weather.gov/slc/winter.
&&
$$
URGENT - WINTER WEATHER MESSAGE
National Weather Service Salt Lake City UT
941 PM MST Fri Dec 5 2025
UTZ110-111-061945-
/O.CON.KSLC.WS.W.0007.000000T0000Z-251207T1200Z/
Wasatch Mountains I-80 North-Wasatch Mountains South of I-80-
Including the following locations - Logan Summit, Mantua,
Brighton, and Alta
941 PM MST Fri Dec 5 2025
...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST SUNDAY...
* WHAT...Heavy snow. Total snow accumulations between 12 and 30
inches.
* WHERE...The Wasatch Mountains.
* WHEN...Until 5 AM MST Sunday.
* IMPACTS...Winter driving conditions can be expected on all
mountain routes. Traction restrictions are likely. Very low
visibility in blowing and drifting snow is likely near Logan
Summit.
* ADDITIONAL DETAILS...The heaviest period of snow will be Friday
evening into early Saturday morning, with rates exceeding 2 inches
per hour at times.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. For winter road conditions
from the Utah Department of Transportation, visit
http://www.udottraffic.utah.gov.
For graphical depictions of the snowfall forecast, including
Official NWS Forecast, High End Amount, and Low End Amount, visit
weather.gov/slc/winter.
&&
$$
URGENT - WINTER WEATHER MESSAGE
National Weather Service Salt Lake City UT
941 PM MST Fri Dec 5 2025
UTZ112-113-117-061945-
/O.CON.KSLC.WS.W.0007.000000T0000Z-251207T1200Z/
Western Uinta Mountains-Wasatch Plateau/Book Cliffs-Central
Mountains-
Including the following locations - Mirror Lake Highway,
Scofield, Cove Fort, Joes Valley, Fish Lake, Moon Lake, and
Indian Canyon
941 PM MST Fri Dec 5 2025
...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST SUNDAY...
* WHAT...Heavy snow. Total snow accumulations of 1 to 2 feet, except
4 to 8 inches south of Manti.
* WHERE...Central Mountains, Wasatch Plateau/Book Cliffs, and
Western Uinta Mountains.
* WHEN...Until 5 AM MST Sunday.
* IMPACTS...Winter driving conditions can be expected on all
mountain routes with significant impacts to conditions on Soldier
Summit.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. For winter road conditions
from the Utah Department of Transportation, visit
http://www.udottraffic.utah.gov.
For graphical depictions of the snowfall forecast, including
Official NWS Forecast, High End Amount, and Low End Amount, visit
weather.gov/slc/winter.
&&
$$
URGENT - WINTER WEATHER MESSAGE
National Weather Service Missoula MT
402 PM MST Fri Dec 5 2025
IDZ005-006-062315-
/O.CON.KMSO.WS.W.0012.000000T0000Z-251207T0000Z/
Northern Clearwater Mountains-Southern Clearwater Mountains-
302 PM PST Fri Dec 5 2025
...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 4 PM PST SATURDAY...
* WHAT...Heavy snow. There is a likelihood of developing or ongoing
major winter weather impacts to isolated extreme winter storm
impacts. Additional snow accumulations up to 13 inches at higher
elevations including Lolo Pass and 1 to 5 inches at low
elevations. Winds gusting as high as 35 mph.
* WHERE...Dixie, Elk City, Highway 12 Lowell to Lolo Pass, Elk
River, Highway 11 Pierce to Headquarters, and Pierce.
* WHEN...Until 4 PM PST Saturday.
* IMPACTS...For MAJOR winter weather impacts, expect considerable
disruptions to normal activities. Dangerous or impossible
traveling conditions. Avoid travel in the impacted areas if
possible. Widespread closures and disruptions to infrastructure
may occur. For EXTREME winter storm impacts, expect substantial
disruptions to normal activities. Extremely dangerous or
impossible traveling conditions. Travel in the impacted areas is
not advised. Extensive and widespread closures and disruptions to
infrastructure may occur. Life saving actions may be needed. The
hazardous conditions could impact the Friday evening commute,
especially over higher passes.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. The latest road conditions for
the state you are calling from can be obtained by calling 5 1 1.
&&
$$
URGENT - WINTER WEATHER MESSAGE
National Weather Service Missoula MT
402 PM MST Fri Dec 5 2025
MTZ006-062315-
/O.CON.KMSO.WS.W.0012.000000T0000Z-251207T0000Z/
Bitterroot/Sapphire Mountains-
402 PM MST Fri Dec 5 2025
...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST SATURDAY...
* WHAT...Heavy snow expected. There is a likelihood of major winter
storm impacts. Total snow accumulations 1 to 5 inches in the
valleys and 8 to 15 inches in the higher terrain including Lolo
and Lost Trail Passes. Winds gusting as high as 40 mph on Friday.
* WHERE...Lolo Pass and Highway 93 Sula to Lost Trail Pass.
* WHEN...Until 5 PM MST Saturday.
* IMPACTS...For MAJOR winter weather impacts, expect considerable
disruptions to normal activities. Dangerous or impossible
traveling conditions. Avoid travel in the impacted areas if
possible. Widespread closures and disruptions to infrastructure
may occur. The hazardous conditions could impact the Friday
evening commute, especially over higher passes. Gusty winds could
bring down tree branches.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. The latest road conditions for
the state you are calling from can be obtained by calling 5 1 1.
&&
$$
Winter Weather Advisory
URGENT - WINTER WEATHER MESSAGE
National Weather Service Pocatello ID
158 AM MST Sat Dec 6 2025
IDZ072-073-061800-
/O.EXT.KPIH.WW.Y.0019.000000T0000Z-251206T1800Z/
Sawtooth/Stanley Basin-Sun Valley Region-
Including the cities of Ketchum, Stanley, Sun Valley, and Galena
158 AM MST Sat Dec 6 2025
...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL 11 AM MST THIS
MORNING...
* WHAT...Snow expected. Additional snow accumulations between 2 and
6 inches with higher snow totals expected at and above pass level
with 6 to 10 inches of snow for Galena Summit. Gusty winds are
possible, with areas of blowing and drifting snow.
* WHERE...Sawtooth/Stanley Basin and Sun Valley Region.
* WHEN...Until 11 AM MST this morning.
* IMPACTS...Plan on slippery road conditions. The hazardous
conditions could impact Saturday morning travel.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Slow down and use caution while traveling. Call 5 1 1 or visit
511.idaho.gov for the latest road conditions.
&&
$$
Visit weather.gov/pocatello for more information.
Messick
URGENT - WINTER WEATHER MESSAGE
National Weather Service Riverton WY
1251 AM MST Sat Dec 6 2025
WYZ001-002-062100-
/O.CON.KRIW.WW.Y.0034.000000T0000Z-251206T2100Z/
Yellowstone National Park-Absaroka Mountains-
Including the cities of Mammoth, Old Faithful, and Lake
1251 AM MST Sat Dec 6 2025
...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 2 PM MST THIS
AFTERNOON...
* WHAT...Snow expected. Additional snow accumulations of 2 to 8
inches across much of Yellowstone National Park. Higher
accumulations of 8 to 15 inches across higher elevations of the
Pitchstone Plateau and the western portions of the Absaroka
Mountains. Gusty winds of 20 to 35 mph across Yellowstone National
Park and 35 to 55 mph across the Absaroka Mountains.
* WHERE...Absaroka Mountains and Yellowstone National Park.
* WHEN...Until 2 PM MST this afternoon.
* IMPACTS...Travel could be very difficult, with hazardous
conditions impacting any travel through the area.
* ADDITIONAL DETAILS...Periods of moderate to heavy snow are
possible through Noon Saturday. Snow and gusty winds could cause
reduced visibilities and drifting snow.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Slow down and use caution while traveling.
For graphical depictions of the snowfall forecast, including the
official NWS forecast, high end amounts, and low end amounts, visit
https://weather.gov/riw/winter .
For winter road conditions from the Wyoming Department of
Transportation, visit https://wyoroad.info .
&&
$$
URGENT - WINTER WEATHER MESSAGE
National Weather Service Riverton WY
1251 AM MST Sat Dec 6 2025
WYZ013-023-062100-
/O.CON.KRIW.WW.Y.0034.000000T0000Z-251206T2100Z/
Jackson Hole-Star Valley-
Including the cities of Jackson, Afton, Alpine, Thayne, and Star
Valley Ranch
1251 AM MST Sat Dec 6 2025
...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 2 PM MST THIS
AFTERNOON...
* WHAT...Snow expected. Additional snow accumulations of 1 to 4
inches possible, with locally high amounts up to 6 inches in the
foothill areas. Gusty winds of 20 to 25 mph.
* WHERE...Jackson Hole and Star Valley.
* WHEN...Until 2 PM MST this afternoon.
* IMPACTS...Plan on slippery road conditions and reduced
visibilities.
* ADDITIONAL DETAILS...Periods of moderate to heavy snow are
possible through Saturday morning. Snow and gusty winds could
cause reduced visibilities.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Slow down and use caution while traveling.
For graphical depictions of the snowfall forecast, including the
official NWS forecast, high end amounts, and low end amounts, visit
https://weather.gov/riw/winter .
For winter road conditions from the Wyoming Department of
Transportation, visit https://wyoroad.info .
&&
$$
URGENT - WINTER WEATHER MESSAGE
National Weather Service Riverton WY
1251 AM MST Sat Dec 6 2025
WYZ014-025-062100-
/O.CON.KRIW.WW.Y.0034.000000T0000Z-251206T2100Z/
Wind River Mountains West-Upper Green River Basin Foothills-
Including the cities of Pinedale
1251 AM MST Sat Dec 6 2025
...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 2 PM MST THIS
AFTERNOON...
* WHAT...Snow expected. Additional snow accumulations of 1 to 4
inches from Bondurant/Hoback Junction to Pinedale and 8 to 15
inches in the mountains. Gusty winds of 20 to 35 mph possible
across the Upper Green River Basin and west Wind River Mountains,
and up to 50 mph across the highest elevations. Wind gusts around
45 mph over South Pass.
* WHERE...Wind River Mountains West and Upper Green River Basin
Foothills.
* WHEN...Until 2 PM MST this afternoon.
* IMPACTS...Travel could be difficult through Noon Saturday,
especially near Bondurant/Hoback Junction.
* ADDITIONAL DETAILS...Periods of moderate to heavy snow are
possible through Saturday morning. Snow and gusty winds could
cause reduced visibilities.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Slow down and use caution while traveling.
For graphical depictions of the snowfall forecast, including the
official NWS forecast, high end amounts, and low end amounts, visit
https://weather.gov/riw/winter .
For winter road conditions from the Wyoming Department of
Transportation, visit https://wyoroad.info .
&&
$$
For more information from the National Weather Service, visit
https://weather.gov/riw/ .
Gerhardt
URGENT - WINTER WEATHER MESSAGE
National Weather Service Salt Lake City UT
941 PM MST Fri Dec 5 2025
UTZ109-WYZ021-061945-
/O.CON.KSLC.WW.Y.0027.000000T0000Z-251207T0000Z/
Bear Lake and Bear River Valley-Southwest Wyoming-
Including the following locations - Garden City, Evanston,
Randolph, Lyman, and Woodruff
941 PM MST Fri Dec 5 2025
...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST
SATURDAY...
* WHAT...Snow. Total snow accumulations of 2 to 5 inches. Winds
gusting as high as 55 mph mainly Uinta County, Wyoming.
* WHERE...In Utah, Bear Lake and Bear River Valley. In Wyoming,
Southwest Wyoming.
* WHEN...Until 5 PM MST Saturday.
* IMPACTS...Winter driving conditions are expected. Blowing and
drifting snow will reduce visibility, including along I-80 in
Uinta County, WY.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Slow down and use caution while traveling. In Utah, for winter road
conditions from the Utah Department of Transportation, visit
http://www.udottraffic.utah.gov.
In Wyoming, for winter road conditions from the Wyoming Department
of Transportation, visit http://www.wyoroad.info or dial 511.
For graphical depictions of the snowfall forecast, including
Official NWS Forecast, High End Amount, and Low End Amount, visit
weather.gov/slc/winter.
&&
$$
For more information from the National Weather Service visit
https://weather.gov/saltlakecity.
For information on potential travel impacts visit
http://udottraffic.utah.gov
LC
Wind Advisory
URGENT - WEATHER MESSAGE
National Weather Service Pendleton OR
148 AM PST Sat Dec 6 2025
ORZ050-062100-
/O.CON.KPDT.WI.Y.0029.000000T0000Z-251206T2100Z/
Wallowa County-
Including the cities of Enterprise, Joseph, and Wallowa
148 AM PST Sat Dec 6 2025
...WIND ADVISORY REMAINS IN EFFECT UNTIL 1 PM PST THIS AFTERNOON FOR
WALLOWA VALLEY...
* WHAT...West winds 15 to 25 mph with gusts up to 45 mph in Wallowa
Valley.
* WHERE...Wallowa County.
* WHEN...Until 1 PM PST this afternoon.
* IMPACTS...Gusty winds will blow around unsecured objects. Tree
limbs could be blown down and a few power outages may result.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Winds this strong can make driving difficult, especially for high
profile vehicles. Use extra caution.
&&
$$
Hazardous Weather Outlook
Hazardous Weather Outlook
National Weather Service Riverton WY
309 AM MST Sat Dec 6 2025
WYZ001>020-022>030-071415-
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-
309 AM MST Sat Dec 6 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 THIS AFTERNOON...
...WINTER WEATHER ADVISORY REMAINS IN EFFECT FOR YELLOWSTONE NATIONAL
PARK, THE ABSAROKA MOUNTAINS, THE UPPER GREEN RIVER BASIN FOOTHILLS,
THE WIND RIVER MOUNTAINS WEST, JACKSON HOLE, AND STAR VALLEY UNTIL 2
PM MST THIS AFTERNOON...
...WINTER STORM WARNING REMAINS IN EFFECT FOR THE BIGHORN MOUNTAINS WEST
UNTIL 5 PM MST THIS AFTERNOON...
This Hazardous Weather Outlook is for Western and Central Wyoming.
.DAY ONE...Today and tonight.
Periods of moderate to heavy snowfall are possible through the late
morning/early afternoon across the Western Mountains, Jackson and
Star Valleys, the Upper Green River Basin, and the western Bighorns.
Gusty winds combined with snow could cause reduced visibilities and
hazardous travel.
Wind gusts of 30 to 50 mph are expected, with isolated gusts above 60
mph possible, much of the day across the western mountains, the Wind
Corridor, and the Wind River Basin.
.DAYS TWO THROUGH SEVEN...Sunday through Friday.
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.
$$
