Winter Storm Warning
URGENT - WINTER WEATHER MESSAGE
National Weather Service Great Falls MT
518 PM MST Fri Dec 5 2025
MTZ317-320-330-061315-
/O.CON.KTFX.WS.W.0019.000000T0000Z-251206T2100Z/
Little Belt and Highwood Mountains-Big Belt, Bridger and Castle
Mountains-Gallatin and Madison County Mountains and Centennial
Mountains-
Including the following locations: West Yellowstone, Trident,
Monarch, Battle Ridge Pass, Neihart, Bozeman Pass, Raynolds Pass,
Kings Hill Pass, Big Sky, Targhee Pass, Maudlow, and Deep Creek
Pass
518 PM MST Fri Dec 5 2025
...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 2 PM MST SATURDAY...
* WHAT...Heavy snow. Additional snow accumulations between 4 and 11
inches. Isolated higher amounts. Winds gusting as high as 45 mph.
* WHERE...Big Belt, Bridger and Castle Mountains, Little Belt and
Highwood Mountains, and Gallatin and Madison County Mountains and
Centennial Mountains.
* WHEN...Until 2 PM MST Saturday.
* IMPACTS...Tire chains may be required for some vehicles if
traveling through mountain passes. Blowing snow could
significantly reduce visibility. Gusty winds could bring down tree
branches.
* ADDITIONAL DETAILS...Significant travel impacts to the Friday
evening commute are possible for Bozeman Pass and along Highway
191 south of Bozeman.
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.
&&
$$
URGENT - WINTER WEATHER MESSAGE
National Weather Service Great Falls MT
518 PM MST Fri Dec 5 2025
MTZ327-061315-
/O.CON.KTFX.WS.W.0019.000000T0000Z-251207T0000Z/
Northwest Beaverhead County-
Including the following locations: Wisdom, Wise River, Dewey,
Chief Joseph Pass, and Big Hole Pass
518 PM MST Fri Dec 5 2025
...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST SATURDAY...
* WHAT...Heavy snow. Additional snow accumulations between 5 and 13
inches. Isolated higher amounts. Winds gusting as high as 50 mph.
* WHERE...Northwest Beaverhead County.
* WHEN...Until 5 PM MST Saturday.
* IMPACTS...Travel could be very difficult and tire chains may be
required for some vehicles. Those in the backcountry should ensure
they are prepared for dangerous conditions. Blowing snow could
significantly reduce visibility. Gusty winds could bring down tree
branches.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. The latest road conditions can
be obtained by calling 5 1 1 or visiting the MDT Road Report website.
&&
$$
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.
&&
$$
URGENT - WINTER WEATHER MESSAGE
National Weather Service Missoula MT
402 PM MST Fri Dec 5 2025
MTZ004-062315-
/O.CON.KMSO.WS.W.0012.000000T0000Z-251207T0000Z/
Lower Clark Fork Region-
402 PM MST Fri Dec 5 2025
...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST SATURDAY...
* WHAT...Heavy snow. There is a likelihood of developing or ongoing
major winter weather impacts to isolated extreme winter storm
impacts. Additional snow accumulations of 5 to 11 inches Taft to
Lookout Pass and 2 to 5 inches in the valleys. Winds gusting as
high as 35 mph.
* WHERE...Evaro Hill, Highway 200 Trout Creek to Heron, I-90 Lookout
Pass to Haugan, and Highway 200 Thompson Falls to Plains.
* WHEN...Until 5 PM MST Saturday.
* IMPACTS...For MAJOR winter weather impacts, expect considerable
disruptions to normal activities. Dangerous or impossible
traveling conditions. Avoid travel in the impacted areas if
possible. Widespread closures and disruptions to infrastructure
may occur. The hazardous conditions could impact the Friday
evening commute, especially over higher passes.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. The latest road conditions for
the state you are calling from can be obtained by calling 5 1 1.
&&
$$
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.
&&
$$
URGENT - WINTER WEATHER MESSAGE
National Weather Service Missoula MT
402 PM MST Fri Dec 5 2025
MTZ043-062315-
/O.CON.KMSO.WS.W.0012.000000T0000Z-251207T0000Z/
Potomac/Seeley Lake Region-
402 PM MST Fri Dec 5 2025
...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST SATURDAY...
* WHAT...Heavy snow. There is a likelihood of developing or ongoing
major winter weather impacts to isolated extreme winter storm
impacts. Additional snow accumulations of 5 to 10 inches. Winds
gusting as high as 35 mph.
* WHERE...Highway 200 Bonner to Greenough, Highway 83 Seeley Lake to
Condon, and I-90 East Missoula to Bearmouth.
* WHEN...Until 5 PM MST Saturday.
* IMPACTS...For MAJOR winter weather impacts, expect considerable
disruptions to normal activities. Dangerous or impossible
traveling conditions. Avoid travel in the impacted areas if
possible. Widespread closures and disruptions to infrastructure
may occur. For EXTREME winter storm impacts, expect substantial
disruptions to normal activities. Extremely dangerous or
impossible traveling conditions. Travel in the impacted areas is
not advised. Extensive and widespread closures and disruptions to
infrastructure may occur. Life saving actions may be needed. The
hazardous conditions could impact the Friday evening commute,
especially over higher passes.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. The latest road conditions for
the state you are calling from can be obtained by calling 5 1 1.
&&
$$
URGENT - WINTER WEATHER MESSAGE
National Weather Service Billings MT
229 PM MST Fri Dec 5 2025
MTZ067-068-062100-
/O.CON.KBYZ.WS.W.0017.000000T0000Z-251206T2100Z/
Absaroka/Beartooth Mountains-Crazy Mountains-
Including the locations of Cooke City
229 PM MST Fri Dec 5 2025
...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 2 PM MST SATURDAY...
* WHAT...Periods of moderate to heavy snowfall, strong winds, and
blowing snow. Additional snow accumulations between 6 and 14
inches. Winds gusting as high as 75 mph.
* WHERE...Absaroka/Beartooth Mountains and Crazy Mountains.
* WHEN...Until 2 PM MST Saturday.
* IMPACTS...Mountain recreation will be impacted by heavy
accumulating snow and blowing snow. Whiteout conditions are
expected at times.
* ADDITIONAL DETAILS...The heaviest snowfall will occur on west and
northwest facing slopes. The mountains around Red Lodge and Nye
will see much less snowfall, 2 to 6 inches.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Those in the backcountry should ensure they are prepared for
dangerous winter conditions.
&&
$$
URGENT - WINTER WEATHER MESSAGE
National Weather Service Pocatello ID
143 PM MST Fri Dec 5 2025
IDZ058>066-061200-
/O.CON.KPIH.WS.W.0008.000000T0000Z-251206T1200Z/
Marsh and Arbon Highlands-Franklin/Eastern Oneida Region-Bear
River Range-Bear Lake Valley-Blackfoot Mountains-Caribou Range-
Big Hole Mountains-Teton Valley-Centennial Mountains - Island
Park-
Including the cities of Malad, Thatcher, McCammon, Tetonia,
Inkom, Downey, Victor, Ashton, Montpelier, Lava Hot Springs,
Grace, Swan Valley, Emigration Summit, Georgetown, Island Park,
Driggs, Wayan, Bone, Soda Springs, Henry, St. Charles, Preston,
and Kilgore
143 PM MST Fri Dec 5 2025
...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST SATURDAY...
* WHAT...Heavy snow generally above valley floors. Additional snow
accumulations of 6 to 10 inches above 6500 ft elevation. The Bear
River and Caribou Ranges could see additional accumulations of 12
to 18 inches. Very gusty winds overnight may cause areas of
blowing and drifting snowfall.
* WHERE...Big Hole Mountains, Centennial Mountains - Island Park,
Teton Valley, Bear Lake Valley, Bear River Range, Blackfoot
Mountains, Caribou Range, Franklin/Eastern Oneida Region, and
Marsh and Arbon Highlands.
* WHEN...Until 5 AM MST Saturday.
* IMPACTS...Travel could be very difficult to impossible. The
hazardous conditions could impact the Friday evening commute.
Gusty winds could bring down tree branches.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. Call 5 1 1 or visit
511.idaho.gov for the latest road conditions.
&&
$$
URGENT - WINTER WEATHER MESSAGE
National Weather Service Riverton WY
1253 PM MST Fri Dec 5 2025
WYZ008-061300-
/O.UPG.KRIW.WW.Y.0034.000000T0000Z-251206T2100Z/
/O.EXB.KRIW.WS.W.0012.000000T0000Z-251207T0000Z/
Bighorn Mountains West-
1253 PM MST Fri Dec 5 2025
...WINTER STORM WARNING IN EFFECT UNTIL 5 PM MST SATURDAY...
* WHAT...Snow expected. Additional snow accumulations of 10 to 18
inches over central and northern portions of the Bighorns. Snow
amounts of 1 to 6 inches are forecast for the southern portion.
* WHERE...Bighorn Mountains West.
* WHEN...Until 5 PM MST Saturday.
* IMPACTS...Travel could be very difficult over Granite and Powder
River Passes. The hazardous conditions could impact the Friday
evening and Saturday morning commutes.
* ADDITIONAL DETAILS...Heavy periods of snow are expected Saturday
morning when snowfall rates of 1 or more inches will be possible.
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 .
&&
$$
Winter Weather Advisory
URGENT - WINTER WEATHER MESSAGE
National Weather Service Great Falls MT
518 PM MST Fri Dec 5 2025
MTZ301-307-061315-
/O.CON.KTFX.WW.Y.0053.000000T0000Z-251207T0400Z/
East Glacier Park Region-Southern Rocky Mountain Front-
Including the following locations: East Glacier Park, Babb,
Marias Pass, Logan Pass, Saint Mary, Rogers Pass, and Kiowa
518 PM MST Fri Dec 5 2025
...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 9 PM MST
SATURDAY...
* WHAT...Snow expected. Total snow accumulations of 4 to 9 inches.
Isolated higher amounts. Winds gusting as high as 55 mph.
* WHERE...The Continental Divide along the Rocky Mountain Front.
* WHEN...Until 9 PM MST Saturday.
* IMPACTS...Travel could be very difficult and tire chains may be
required for some vehicles. Those in the backcountry should ensure
they are prepared for dangerous conditions. Blowing snow could
significantly reduce visibility. Strong winds could cause tree
damage.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Slow down and use caution while traveling. The latest road
conditions can be obtained by calling 5 1 1 or visiting the MDT Road
Report website.
Remember, a Winter Weather Advisory means that there is at least an
80% chance of minor impacts due to winter weather conditions during
the advisory period.
&&
$$
URGENT - WINTER WEATHER MESSAGE
National Weather Service Great Falls MT
518 PM MST Fri Dec 5 2025
MTZ304>306-310-311-314-318-061315-
/O.CON.KTFX.WW.Y.0053.251206T0200Z-251206T1800Z/
Eastern Toole and Liberty-Hill County-Northern Blaine County-
Western and Central Chouteau County-Bears Paw Mountains and
Southern Blaine-Fergus County below 4500ft-Snowy and Judith
Mountains-
Including the following locations: Harlem, Whitlash, Chester,
Havre, Floweree, Hilger, Lewistown, Lothair, Shelby, Fort
Belknap, Rocky Boy, Zurich, Galata, Fort Benton, Chinook, Devon,
Joplin, Hogeland, and Carter
518 PM MST Fri Dec 5 2025
...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST
SATURDAY...
* WHAT...Snow expected. Total snow accumulations 1 to 4 inches at
lower elevations and up to 8 inches in the mountains.
* WHERE...Portions of central and north central Montana.
* WHEN...Until 11 AM MST Saturday.
* IMPACTS...Plan on slippery road conditions.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Slow down and use caution while traveling. The latest road
conditions can be obtained by calling 5 1 1 or visiting the MDT Road
Report website.
&&
$$
AM
URGENT - WINTER WEATHER MESSAGE
National Weather Service Great Falls MT
518 PM MST Fri Dec 5 2025
MTZ315-061315-
/O.EXA.KTFX.WW.Y.0053.000000T0000Z-251206T1800Z/
Upper Blackfoot and MacDonald Pass-
Including the following locations: MacDonald Pass, Marysville,
Lincoln, and Flesher Pass
518 PM MST Fri Dec 5 2025
...WINTER WEATHER ADVISORY IN EFFECT UNTIL 11 AM MST SATURDAY...
* WHAT...Snow expected. Total snow accumulations between 3 and 7
inches, with higher amounts above pass level. Winds gusting as
high as 45 mph.
* WHERE...Upper Blackfoot and MacDonald Pass.
* WHEN...Until 11 AM MST Saturday.
* IMPACTS...Travel could be very difficult. Blowing snow could
significantly reduce visibility. Gusty winds could bring down tree
branches.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Slow down and use caution while traveling. The latest road
conditions can be obtained by calling 5 1 1 or visiting the MDT Road
Report website.
&&
$$
URGENT - WINTER WEATHER MESSAGE
National Weather Service Great Falls MT
518 PM MST Fri Dec 5 2025
MTZ322-061315-
/O.CON.KTFX.WW.Y.0053.000000T0000Z-251206T1800Z/
Elkhorn and Boulder Mountains-
Including the following locations: Corbin, Boulder, Montana City,
Clancy, Elk Park Pass, Wickes, and Homestake Pass
518 PM MST Fri Dec 5 2025
...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST
SATURDAY...
* WHAT...Snow expected. Total snow accumulations between 3 and 8
inches. Winds gusting as high as 45 mph.
* WHERE...Elkhorn and Boulder Mountains.
* WHEN...Until 11 AM MST Saturday.
* IMPACTS...Travel could be very difficult. Blowing snow could
significantly reduce visibility. Gusty winds could bring down tree
branches.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Slow down and use caution while traveling. The latest road
conditions can be obtained by calling 5 1 1 or visiting the MDT Road
Report website.
&&
$$
URGENT - WINTER WEATHER MESSAGE
National Weather Service Missoula MT
402 PM MST Fri Dec 5 2025
MTZ001-060600-
/O.EXA.KMSO.WW.Y.0046.000000T0000Z-251206T0600Z/
Kootenai/Cabinet Region-
402 PM MST Fri Dec 5 2025
...WINTER WEATHER ADVISORY IN EFFECT UNTIL 11 PM MST THIS EVENING...
* WHAT...Snow. There is a likelihood of developing or ongoing
moderate winter weather impacts. Periods of heavy snow will
quickly accumulated and cause rapidly changing conditions.
Additional snow accumulations of 1 to 5 inches.
* WHERE...Highway 2 Kalispell to Libby, Highway 37 Eureka to Libby,
Highway 93 Eureka to Whitefish, and Highway 56 Bull Lake Road.
* WHEN...Until 11 PM MST this evening.
* IMPACTS...For MODERATE winter weather impacts, expect disruptions
to normal activities. Hazardous traveling conditions. Use extra
caution while driving. Closures and disruptions to infrastructure
may occur. The hazardous conditions could impact the Friday
evening commute, especially over higher passes.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Slow down and use caution while traveling. The latest road
conditions for the state you are calling from can be obtained by
calling 5 1 1.
&&
$$
URGENT - WINTER WEATHER MESSAGE
National Weather Service Missoula MT
402 PM MST Fri Dec 5 2025
MTZ002-062315-
/O.CON.KMSO.WW.Y.0046.251206T0000Z-251207T0000Z/
West Glacier Region-
402 PM MST Fri Dec 5 2025
...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST
SATURDAY...
* WHAT...Snow expected. There is a likelihood of moderate to
isolated major winter weather impacts. Total snow accumulations 1
to 3 inches in the valleys and 5 to 8 inches in the higher terrain
including Marias Pass.
* WHERE...Essex, Marias Pass, Polebridge, Highway 83 Bigfork to Swan
Lake, Glacier National Park, and Bad Rock Canyon.
* WHEN...Until 5 PM MST Saturday.
* IMPACTS...For MODERATE winter weather impacts, expect disruptions
to normal activities. Hazardous traveling conditions. Use extra
caution while driving. Closures and disruptions to infrastructure
may occur. 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.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Slow down and use caution while traveling. The latest road
conditions for the state you are calling from can be obtained by
calling 5 1 1.
&&
$$
URGENT - WINTER WEATHER MESSAGE
National Weather Service Missoula MT
402 PM MST Fri Dec 5 2025
MTZ003-060600-
/O.EXA.KMSO.WW.Y.0046.000000T0000Z-251206T0600Z/
Flathead/Mission Valleys-
402 PM MST Fri Dec 5 2025
...WINTER WEATHER ADVISORY IN EFFECT UNTIL 11 PM MST THIS EVENING...
* WHAT...Wet snow. There is a likelihood of developing or ongoing
moderate winter weather impacts. Periods of heavy snow will
quickly accumulated and cause rapidly changing conditions.
Additional snow accumulations of 1 to 5 inches.
* WHERE...Mission Valley, Flathead Valley, Polson, and Flathead Lake.
* WHEN...Until 11 PM MST this evening.
* IMPACTS...For MODERATE winter weather impacts, expect disruptions
to normal activities. Hazardous traveling conditions. Use extra
caution while driving. Closures and disruptions to infrastructure
may occur. The hazardous conditions could impact the Friday
evening commute, especially over higher passes.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Slow down and use caution while traveling. The latest road
conditions for the state you are calling from can be obtained by
calling 5 1 1.
&&
$$
URGENT - WINTER WEATHER MESSAGE
National Weather Service Missoula MT
402 PM MST Fri Dec 5 2025
MTZ005-060600-
/O.CON.KMSO.WW.Y.0046.000000T0000Z-251206T0600Z/
Missoula/Bitterroot Valleys-
402 PM MST Fri Dec 5 2025
...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 PM MST THIS
EVENING...
* WHAT...Wet snow. There is a likelihood of ongoing moderate winter
weather impacts. Periods of heavy snow will quickly accumulated
and cause rapidly changing conditions. Additional snow
accumulations of 1 to 5 inches. Gusty winds are also possible in
the Bitterroot Valley later in the evening.
* WHERE...Missoula and Bitterroot Valley.
* WHEN...Until 11 PM MST this evening.
* IMPACTS...For MODERATE winter weather impacts, expect disruptions
to normal activities. Hazardous traveling conditions. Use extra
caution while driving. Closures and disruptions to infrastructure
may occur. 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.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Slow down and use caution while traveling. The latest road
conditions for the state you are calling from can be obtained by
calling 5 1 1.
&&
$$
URGENT - WINTER WEATHER MESSAGE
National Weather Service Missoula MT
402 PM MST Fri Dec 5 2025
MTZ007-060600-
/O.CON.KMSO.WW.Y.0046.000000T0000Z-251206T0600Z/
Butte/Blackfoot Region-
402 PM MST Fri Dec 5 2025
...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 PM MST THIS
EVENING...
* WHAT...Snow. There is a likelihood of developing or ongoing
moderate to isolated major winter weather impacts. Additional snow
accumulations of 2 to 6 inches. Winds gusting as high as 40 mph.
* WHERE...Highway 12 Garrison to Elliston, MacDonald Pass, Butte,
Homestake Pass, and Georgetown Lake.
* WHEN...Until 11 PM MST this evening.
* IMPACTS...For MODERATE winter weather impacts, expect disruptions
to normal activities. Hazardous traveling conditions. Use extra
caution while driving. Closures and disruptions to infrastructure
may occur. For MAJOR winter weather impacts, expect considerable
disruptions to normal activities. Dangerous or impossible
traveling conditions. Avoid travel in the impacted areas if
possible. Widespread closures and disruptions to infrastructure
may occur. The hazardous conditions could impact the Friday
evening commute, especially over higher passes.
* ADDITIONAL DETAILS...Rapidly changing conditions are expected
through the evening with periods of heavy snow.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Slow down and use caution while traveling. The latest road
conditions for the state you are calling from can be obtained by
calling 5 1 1.
&&
$$
URGENT - WINTER WEATHER MESSAGE
National Weather Service Billings MT
229 PM MST Fri Dec 5 2025
MTZ171-WYZ198-062100-
/O.CON.KBYZ.WW.Y.0039.000000T0000Z-251206T2100Z/
Pryor/Northern Bighorn Mountains-Northeast Bighorn Mountains-
Including the locations of Burgess Jct and Story
229 PM MST Fri Dec 5 2025
...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 2 PM MST
SATURDAY...
* WHAT...Periods of light to moderate snow and blowing snow.
Additional snow accumulations between 4 and 8 inches. Winds gusting
as high as 45 mph.
* WHERE...In Montana, Pryor/Northern Bighorn Mountains. In Wyoming,
Northeast Bighorn Mountains.
* WHEN...Until 2 PM MST Saturday.
* IMPACTS...The heaviest snowfall is expected late this evening
through Saturday morning. Outdoor recreation could be very
difficult. Whiteout conditions are expected at times due to snow
and blowing snow.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Those recreating in the backcountry should ensure they are prepared
for difficult wintry conditions.
&&
$$
Additional graphics for this hazard can be found at
http://www.weather.gov/billings
Chambers
URGENT - WINTER WEATHER MESSAGE
National Weather Service Glasgow MT
152 PM MST Fri Dec 5 2025
MTZ016>018-020>027-059>061-061200-
/O.CON.KGGW.WW.Y.0017.251206T0300Z-251206T1900Z/
Central and Southeast Phillips-Central and Southern Valley-
Daniels-Western Roosevelt-Petroleum-Garfield-McCone-Richland-
Dawson-Prairie-Wibaux-Northern Phillips-Southwest Phillips-
Northern Valley-
Including Scobey, Glendive, Saco, Zortman, Terry, Wolf Point,
Winnett, Fairview, Jordan, Whitewater, Fort Peck, Opheim, Richey,
Sidney, Wibaux, Frazer, Poplar, Circle, Hinsdale, Malta, and
Glasgow
152 PM MST Fri Dec 5 2025
...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 8 PM THIS EVENING
TO NOON MST SATURDAY...
* WHAT...Snow expected. Total snow accumulations between 2 and 4
inches.
* WHERE...A portion of northeast Montana.
* WHEN...From 8 PM this evening to noon MST Saturday.
* IMPACTS...Plan on slippery road conditions.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Slow down and use caution while traveling. The latest road
conditions for the state you are calling from can be obtained by
calling 5 1 1.
&&
$$
TFJ
URGENT - WINTER WEATHER MESSAGE
National Weather Service Riverton WY
1253 PM MST Fri Dec 5 2025
WYZ001-002-061300-
/O.CON.KRIW.WW.Y.0034.000000T0000Z-251206T2100Z/
Yellowstone National Park-Absaroka Mountains-
Including the cities of Lake, Old Faithful, and Mammoth
1253 PM MST Fri Dec 5 2025
...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 2 PM MST
SATURDAY...
* WHAT...Snow expected. Additional snow accumulations of 2 to 6
inches; accumulations of 10 to 15 inches at the South and
Northeast entrances and near Pahaska; locally higher amounts of
one to two feet in the higher elevations in the Pitchstone Plateau
and the western slopes of the Absarokas. Gusty winds of 20 to 35
mph across Yellowstone National Park and 30 to 50 mph across the
Absaroka Mountains.
* WHERE...Absaroka Mountains and Yellowstone National Park.
* WHEN...Until 2 PM MST Saturday.
* IMPACTS...Travel could be very difficult. The hazardous conditions
could impact any travel through the area.
* ADDITIONAL DETAILS...Moderate to heavy snowfall begins Friday
evening and continues through the overnight hours, this is when a
bulk of the additional snow accumulations will occur. Gusty winds
are expected after sunset Friday and continue into Saturday
morning. Heavy snowfall and gusty winds could cause reduced
visibility 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 .
&&
$$
Wind Advisory
URGENT - WEATHER MESSAGE
National Weather Service Billings MT
119 PM MST Fri Dec 5 2025
MTZ065-061900-
/O.NEW.KBYZ.WI.Y.0021.251206T0100Z-251206T1900Z/
Livingston Area-
Including the locations of Livingston
119 PM MST Fri Dec 5 2025
...WIND ADVISORY IN EFFECT FROM 6 PM THIS EVENING TO NOON MST
SATURDAY...
* WHAT...West to Southwest winds 35 to 45 mph with gusts up to 65 mph
expected.
* WHERE...Livingston Area.
* WHEN...From 6 PM this evening to noon MST Saturday.
* IMPACTS...Gusty winds will blow around unsecured objects. Tree limb
and power line damage is possible and may result in localized power
outages. Strong crosswinds will make travel difficult along
Interstate 90 from Livingston to Big Timber and roads along the
Beartooth Foothills.
* ADDITIONAL DETAILS...The strongest winds are expected from around
midnight through 8 am.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Winds this strong can make driving difficult, especially for high
profile vehicles. Use extra caution and consider postponing travel
until winds subside, or take an alternate route.
Secure outdoor objects.
&&
$$
Additional graphics for this hazard can be found at
http://www.weather.gov/billings
Chambers
Special Weather Statement
Special Weather Statement
National Weather Service Great Falls MT
827 PM MST Fri Dec 5 2025
MTZ303-309-312-313-060600-
Eastern Glacier, Western Toole, and Central Pondera-
Eastern Pondera and Eastern Teton-Cascade County below 5000ft-
Judith Basin County and Judith Gap-
Including the cities of Cut Bank, Ethridge, Santa Rita, Brady,
Conrad, Ledger, Great Falls, Raynesford, Geyser, Stanford,
Windham, Benchland, Hobson, and Moccasin
827 PM MST Fri Dec 5 2025
...Light Snow This Evening...
A band of primarily light snow has developed across portions of
the plains this evening. While this band is forecast to shift
eastward later this evening and into the overnight, light
accumulations will be possible in areas along I-15 on the plains
and across the MT-200 corridor east of Great Falls into Judith
Basin County through the remainder of the evening. Those with
travel plans in these areas should be prepared for winter driving
conditions.
$$
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.
$$
