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Winter Storm Warning


URGENT - WINTER WEATHER MESSAGE
National Weather Service Billings MT
142 AM MST Wed Dec 10 2025

MTZ067-110000-
/O.CON.KBYZ.WS.W.0018.000000T0000Z-251211T0000Z/
Absaroka/Beartooth Mountains-
Including the locations of Cooke City
142 AM MST Wed Dec 10 2025

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST THIS
AFTERNOON...

* WHAT...Periods of heavy snow. Additional snow accumulations of 5 to
  10 inches, greatest on west aspects. Winds gusting as high as 55
  mph.

* WHERE...Absaroka/Beartooth Mountains.

* WHEN...Until 5 PM MST this afternoon.

* IMPACTS...Recreation in the high country will be impacted by heavy
  accumulating snow and significant blowing snow. Whiteout conditions
  are possible over the highest elevations. Avalanche danger will
  increase.

* ADDITIONAL DETAILS...Additional periods of snow possible Thursday
  into Friday.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Outdoor activities in the mountains will be impacted by harsh winter
conditions, so be prepared.

&&

$$

URGENT - WINTER WEATHER MESSAGE
National Weather Service Riverton WY
213 PM MST Tue Dec 9 2025

WYZ001-002-101400-
/O.CON.KRIW.WS.W.0013.000000T0000Z-251211T0000Z/
Yellowstone National Park-Absaroka Mountains-
Including the cities of Lake, Old Faithful, and Mammoth
213 PM MST Tue Dec 9 2025

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST WEDNESDAY...

* WHAT...Heavy snow. Additional snow accumulations between 8 and 15
  inches, with the highest amounts in the western Absarokas and
  southwestern Yellowstone Park. Northern Yellowstone Park will see
  4 to 8 inches of snow with much lower amounts, less than 2 inches
  at Mammoth. Winds gusting as high as 60 to 70 mph across the
  ridgetops.

* WHERE...Absaroka Mountains and Yellowstone National Park.

* WHEN...Until 5 PM MST Wednesday.

* IMPACTS...Travel could be very difficult across Yellowstone Park
  and along Chief Joseph Highway. Significant blowing and drifting
  of snow is expected. Backcountry travel is not advised.

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 Riverton WY
213 PM MST Tue Dec 9 2025

WYZ012-101400-
/O.CON.KRIW.WS.W.0013.000000T0000Z-251211T0000Z/
Teton and Gros Ventre Mountains-
213 PM MST Tue Dec 9 2025

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST WEDNESDAY...

* WHAT...Heavy snow. Additional snow accumulations of 8 to 18
  inches. Winds gusting as 50 to 60 mph, with strongest winds
  occurring Tuesday night through Wednesday morning.

* WHERE...Teton and Gros Ventre Mountains, including Teton Pass and
  Togwotee Pass.

* WHEN...Until 5 PM MST Wednesday.

* IMPACTS...Travel could be very difficult. The hazardous conditions
  could impact travel across Teton and Togwotee Passes Tuesday and
  Wednesday. Blowing and drifting of snow is expected. Backcountry
  travel is not advised.

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 .

&&

$$


High Wind Warning


URGENT - WEATHER MESSAGE
National Weather Service Billings MT
120 AM MST Wed Dec 10 2025

MTZ063-141-172-228-110830-
/O.UPG.KBYZ.HW.A.0012.251210T2100Z-251212T0000Z/
/O.NEW.KBYZ.HW.W.0014.251210T2100Z-251212T0000Z/
Judith Gap-Northern Sweet Grass-Melville Foothills-Southern
Wheatland-
Including the locations of Judith Gap, Melville, Harlowton, and Big
Timber
120 AM MST Wed Dec 10 2025

...HIGH WIND WARNING IN EFFECT FROM 2 PM THIS AFTERNOON TO 5 PM MST
THURSDAY...

* WHAT...West winds gusting up to 65 mph expected.

* WHERE...Judith Gap, Southern Wheatland, Melville Foothills, and
  Northern Sweet Grass.

* WHEN...From 2 PM this afternoon to 5 PM MST Thursday.

* IMPACTS...Strong crosswinds will make travel difficult along US-191
  from Big Timber through Harlowton, especially for high profile
  vehicles.

* ADDITIONAL DETAILS...Strongest winds are expected tonight through
  Thursday morning.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People are urged to secure loose objects that could be blown around
or damaged by the wind. Use caution if traveling.

&&

$$

URGENT - WEATHER MESSAGE
National Weather Service Great Falls MT
256 PM MST Tue Dec 9 2025

MTZ302-308-101500-
/O.UPG.KTFX.HW.A.0029.251210T1500Z-251211T0000Z/
/O.NEW.KTFX.HW.W.0030.251210T1500Z-251211T0300Z/
Northern High Plains-Southern High Plains-
Including the following locations: Bynum, Heart Butte, Choteau,
Dupuyer, Browning, and Pendroy
256 PM MST Tue Dec 9 2025

...HIGH WIND WARNING IN EFFECT FROM 8 AM TO 8 PM MST WEDNESDAY...

* WHAT...West winds 40 to 50 mph with gusts up to 90 mph expected.

* WHERE...The foothills and plains adjacent to the Rocky Mountain
  Front.

* WHEN...From 8 AM to 8 PM MST Wednesday.

* IMPACTS...High winds may move loose debris, damage property and
  cause power outages. Travel could be difficult, especially for
  high profile vehicles.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People are urged to secure loose objects that could be blown around
or damaged by the wind.

Remember, a High Wind Warning means that there is at least an 80%
chance of 40 mph sustained winds or 58 mph wind gusts occurring
during the warning period.

&&

$$

URGENT - WEATHER MESSAGE
National Weather Service Great Falls MT
256 PM MST Tue Dec 9 2025

MTZ303-101500-
/O.UPG.KTFX.HW.A.0029.251210T1500Z-251211T0000Z/
/O.NEW.KTFX.HW.W.0030.251210T1500Z-251211T0300Z/
Eastern Glacier, Western Toole, and Central Pondera-
Including the following locations: Ethridge, Cut Bank, and Santa
Rita
256 PM MST Tue Dec 9 2025

...HIGH WIND WARNING IN EFFECT FROM 8 AM TO 8 PM MST WEDNESDAY...

* WHAT...West winds 30 to 40 mph with gusts up to 70 mph expected.

* WHERE...Eastern Glacier, Western Toole, and Central Pondera
  Counties.

* WHEN...From 8 AM to 8 PM MST Wednesday.

* IMPACTS...High winds may move loose debris, damage property and
  cause power outages. Travel could be difficult, especially for
  high profile vehicles.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People are urged to secure loose objects that could be blown around
or damaged by the wind.

Remember, a High Wind Warning means that there is at least an 80%
chance of 40 mph sustained winds or 58 mph wind gusts occurring
during the warning period.

&&

$$

Wilson


Avalanche Warning


MTZ067-101200-

Urgent - Immediate Broadcast Requested
Avalanche Warning
Gallatin National Forest Avalanche Center
Relayed by National Weather Service Billings MT
557 AM MST Tue Dec 9 2025

The following message is transmitted at the request of the
Gallatin National Forest Avalanche Center.

The Gallatin NF Avalanche Center in Bozeman has issued a
BACKCOUNTRY AVALANCHE WARNING for the following areas:
NWS Billings MT - MTZ067 (MTZ067)

* WHAT...The avalanche danger is HIGH and avalanches will happen
  today.

* WHERE...The mountains near Cooke City

* WHEN...In effect from Tue 04:39 MST to Wed 04:39 MST.

* IMPACTS...Avalanches have been happening for the last 4 days.
  More snow and especially high winds will cause many more
  avalanches today.

* PRECAUTIONARY / PREPAREDNESS ACTIONS...Very dangerous avalanche
  conditions. Stay far away from any steep slope. Avalanches may
  be triggered from flat terrain below steeper slopes.

Consult http://www.mtavalanche.com or www.avalanche.org for more
detailed information.

Similar avalanche danger may exist at locations outside the
coverage area of this or any avalanche center.

$$

MTZ001-002-101200-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Backcountry Avalanche Warning
Flathead Avalanche Center Hungry Horse MT
Relayed by National Weather Service Missoula MT
534 AM MST Tue Dec 9 2025

The following message is transmitted at the request of Flathead Avalanche
Center Hungry Horse MT.

...AVALANCHE WARNING ISSUED BY THE FLATHEAD AVALANCHE CENTER...

06:00 MST Tue Dec 09 2025
The Flathead Avalanche Center in Hungry Horse has issued a BACKCOUNTRY
AVALANCHE WARNING for the following areas:

NWS Missoula MT -
MTZ001 (MTZ001)...MTZ002 (MTZ002)

* WHAT...Heavy rain, heavy snowfall, strong winds, and above-freezing
temperatures have created very dangerous avalanche conditions.

* WHERE...The Whitefish, Swan, and Flathead Ranges, as well as the Apgar
Mountains, Lake McDonald Valley, and Marias Pass areas of Glacier National
Park.

* WHEN...In effect from Tue 06:00 MST to Wed 05:00 MST.

* IMPACTS...Large to very large natural avalanches are likely on mid- and
upper-elevation slopes; they may involve wet snow or dense slabs of new and
wind-drifted snow. These slides can run into low elevation terrain and
valley bottoms, including terrain where it doesn`t appear to be enough snow
cover for avalanche hazards.

* PRECAUTIONARY / PREPAREDNESS ACTIONS...Very dangerous avalanche
conditions. Travel in and below avalanche terrain is not recommended.
Avalanches may run long distances and can run into mature forests, valley
floors, or flat terrain.

Consult http://www.flatheadavalanche.org/ or www.avalanche.org for more
detailed information.

Similar avalanche danger may exist at locations outside the coverage area of
this or any avalanche center.

$$


Winter Weather Advisory


URGENT - WINTER WEATHER MESSAGE
National Weather Service Great Falls MT
305 AM MST Wed Dec 10 2025

MTZ301-307-110000-
/O.CON.KTFX.WW.Y.0054.000000T0000Z-251210T1800Z/
/O.CON.KTFX.WS.A.0019.251211T2100Z-251213T1200Z/
East Glacier Park Region-Southern Rocky Mountain Front-
Including the following locations: Saint Mary, Logan Pass, Kiowa,
Marias Pass, Rogers Pass, Babb, and East Glacier Park
305 AM MST Wed Dec 10 2025

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST THIS
MORNING...
...WINTER STORM WATCH REMAINS IN EFFECT FROM THURSDAY AFTERNOON
THROUGH LATE FRIDAY NIGHT...

* WHAT...For the Winter Weather Advisory, snow and freezing rain
  expected. Total snow accumulations between 2 to 4 inches on Marias
  Pass, and up to 7 inches at ridge tops. Light ice accumulations.
  For the winter storm watch, heavy snow possible. Total snow
  accumulations between 7 and 12 inches possible along Marias Pass,
  with over a foot of snow at the higher peaks.

* WHERE...The Continental Divide along the Rocky Mountain Front.

* WHEN...For the Winter Weather Advisory, until 11 AM MST this
  morning. For the Winter Storm Watch, from Thursday afternoon
  through late Friday night.

* IMPACTS...Roads, and especially bridges and overpasses, will
  likely become slick and hazardous. 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. Very strong winds could cause extensive 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.

&&

$$

Brusda

URGENT - WINTER WEATHER MESSAGE
National Weather Service Great Falls MT
305 AM MST Wed Dec 10 2025

MTZ302-308>310-312>314-317-318-110000-
/O.EXA.KTFX.WW.Y.0054.000000T0000Z-251210T1800Z/
/O.CON.KTFX.WS.A.0019.251211T2100Z-251213T1200Z/
Northern High Plains-Southern High Plains-Eastern Pondera and
Eastern Teton-Western and Central Chouteau County-Cascade County
below 5000ft-Judith Basin County and Judith Gap-Fergus County
below 4500ft-Little Belt and Highwood Mountains-Snowy and Judith
Mountains-
Including the following locations: Floweree, Stanford, Monarch,
Heart Butte, Benchland, Carter, Fort Benton, Hilger, Lewistown,
Browning, Raynesford, Pendroy, Ledger, Moccasin, Conrad, Dupuyer,
Brady, Hobson, Choteau, Kings Hill Pass, Neihart, Great Falls,
Bynum, Windham, and Geyser
305 AM MST Wed Dec 10 2025

...WINTER WEATHER ADVISORY IN EFFECT UNTIL 11 AM MST THIS MORNING...
...WINTER STORM WATCH REMAINS IN EFFECT FROM THURSDAY AFTERNOON
THROUGH LATE FRIDAY NIGHT...

* WHAT...For the Winter Weather Advisory, snow and freezing rain
  expected. Total snow accumulations up to one inch along with a
  light glace of ice. For the winter storm watch, heavy snow
  possible. Total snow accumulations between 5 and 12 inches
  possible across lower elevations, with locally higher amounts at
  the higher mountain peaks. Winds could gust as high as 35 mph.

* WHERE...Portions of central and north central Montana.

* WHEN...For the Winter Weather Advisory, until 11 AM MST this
  morning. For the Winter Storm Watch, from Thursday afternoon
  through late Friday night.

* IMPACTS...Roads, and especially bridges and overpasses, will
  likely become slick and hazardous. 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. The hazardous conditions could impact the Wednesday
  morning and evening commutes. 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.

&&

$$

URGENT - WINTER WEATHER MESSAGE
National Weather Service Great Falls MT
305 AM MST Wed Dec 10 2025

MTZ303>306-311-110000-
/O.EXA.KTFX.WW.Y.0054.000000T0000Z-251210T1800Z/
/O.CON.KTFX.WS.A.0019.251211T1800Z-251213T1200Z/
Eastern Glacier, Western Toole, and Central Pondera-Eastern Toole
and Liberty-Hill County-Northern Blaine County-Bears Paw
Mountains and Southern Blaine-
Including the following locations: Fort Belknap, Galata, Devon,
Havre, Joplin, Chinook, Harlem, Santa Rita, Rocky Boy, Chester,
Shelby, Zurich, Hogeland, Ethridge, Lothair, Whitlash, and Cut
Bank
305 AM MST Wed Dec 10 2025

...WINTER WEATHER ADVISORY IN EFFECT UNTIL 11 AM MST THIS MORNING...
...WINTER STORM WATCH REMAINS IN EFFECT FROM THURSDAY MORNING
THROUGH LATE FRIDAY NIGHT...

* WHAT...For the Winter Weather Advisory, snow and freezing rain
  expected. Total snow accumulations up to an inch along with a
  light glace of ice. Snow accumulations up to 3 inches in the Bears
  Paw Mountains. For the winter storm watch, heavy snow possible.
  Total snow accumulations between 5 and 12 inches possible across
  lower elevations, with locally higher amounts in the Bears Paws.

* WHERE...Eastern Glacier, Western Toole, and Central Pondera
  Counties, Eastern Toole and Liberty Counties, Hill County,
  Northern Blaine County, and Bears Paw Mountains and Southern
  Blaine.

* WHEN...For the Winter Weather Advisory, until 11 AM MST this
  morning. For the Winter Storm Watch, from Thursday morning through
  late Friday night.

* IMPACTS...Roads, and especially bridges and overpasses, will
  likely become slick and hazardous. Travel could be very difficult.

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
305 AM MST Wed Dec 10 2025

MTZ315-316-319-101800-
/O.EXA.KTFX.WW.Y.0054.000000T0000Z-251210T1800Z/
Upper Blackfoot and MacDonald Pass-Gates of the Mountains-Helena
Valley-
Including the following locations: MacDonald Pass, Craig, Wolf
Creek, Marysville, Lincoln, Canyon Creek, Flesher Pass, and
Helena
305 AM MST Wed Dec 10 2025

...WINTER WEATHER ADVISORY IN EFFECT UNTIL 11 AM MST THIS MORNING...

* WHAT...Snow and freezing rain expected. Total snow accumulations
  up to one inch along with a light glace of ice.

* WHERE...Gates of the Mountains, Helena Valley, and Upper Blackfoot
  and MacDonald Pass.

* WHEN...Until 11 AM MST this morning.

* IMPACTS...Roads, and especially bridges and overpasses, will
  likely become slick and hazardous.

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 Bismarck ND
319 AM CST Wed Dec 10 2025

NDZ009-017-018-031>033-040-041-043-044-101730-
/O.CON.KBIS.WW.Y.0014.251210T2100Z-251212T0000Z/
Williams-McKenzie-Dunn-Golden Valley-Billings-Stark-Slope-
Hettinger-Bowman-Adams-
Including the cities of Halliday, Mott, Beach, Watford City,
Hettinger, Marmarth, Bowman, Killdeer, Medora, Dickinson, New
England, and Williston
319 AM CST Wed Dec 10 2025 /219 AM MST Wed Dec 10 2025/

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 3 PM CST /2 PM MST/
THIS AFTERNOON TO 6 PM CST /5 PM MST/ THURSDAY...

* WHAT...Freezing rain and snow expected. Total snow accumulations
  around 1 to 4 inches and ice accumulations around one tenth of an
  inch.

* WHERE...Much of western North Dakota.

* WHEN...From 3 PM CST /2 PM MST/ this afternoon to 6 PM CST /5 PM
  MST/ Thursday.

* IMPACTS...Plan on slippery road conditions. The hazardous
  conditions will impact the this evening`s and Thursday morning`s
  commutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. The latest road conditions
can be obtained by calling 5 1 1.

&&

$$

URGENT - WINTER WEATHER MESSAGE
National Weather Service Bismarck ND
319 AM CST Wed Dec 10 2025

NDZ010-019>021-034-035-042-045-046-101730-
/O.CON.KBIS.WW.Y.0014.251211T0000Z-251212T0000Z/
Mountrail-Mercer-Oliver-McLean-Morton-Burleigh-Grant-Sioux-Emmons-
Including the cities of New Leipzig, Solen, Mandan, Underwood,
Wilton, Stanley, Washburn, Fort Yates, Center, Bismarck, Linton, New
Town, Hazen, Turtle Lake, Beulah, Elgin, Strasburg, Garrison,
Parshall, Carson, and Selfridge
319 AM CST Wed Dec 10 2025 /219 AM MST Wed Dec 10 2025/

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 6 PM CST /5 PM MST/
THIS EVENING TO 6 PM CST /5 PM MST/ THURSDAY...

* WHAT...Freezing rain and snow expected. Total snow accumulations
  around 1 to 4 inches and ice accumulations around one tenth of an
  inch.

* WHERE...Portions of central North Dakota.

* WHEN...From 6 PM CST /5 PM MST/ this evening to 6 PM CST /5 PM MST/
  Thursday.

* IMPACTS...Plan on slippery road conditions. The hazardous
  conditions will impact the this evening`s and Thursday morning`s
  commutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. The latest road conditions
can be obtained by calling 5 1 1.

&&

$$

Adam

URGENT - WINTER WEATHER MESSAGE
National Weather Service Billings MT
142 AM MST Wed Dec 10 2025

MTZ029-034-042-063-141-172-173-228-235-110845-
/O.CON.KBYZ.WW.Y.0040.251210T1200Z-251210T1800Z/
/O.CON.KBYZ.WS.A.0018.251211T2100Z-251213T1800Z/
Musselshell-Northern Stillwater-Golden Valley-Judith Gap-Northern
Sweet Grass-Melville Foothills-Northeastern Yellowstone-Southern
Wheatland-Southwestern Yellowstone-
Including the locations of Musselshell, Ryegate, Columbus, Melstone,
Rapelje, Judith Gap, Reed Point, Pompeys Pillar, Absarokee, Park
City, Harlowton, Broadview, Lavina, Twodot, Custer, Laurel, Shawmut,
Billings, Roundup, Huntley, Big Timber, and Melville
142 AM MST Wed Dec 10 2025

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 5 AM TO 11 AM MST
THIS MORNING...
...WINTER STORM WATCH REMAINS IN EFFECT FROM THURSDAY AFTERNOON
THROUGH SATURDAY MORNING...

* WHAT...For the Winter Weather Advisory, mixed precipitation
  expected today. Total snow accumulations less than 1 inch. A light
  glaze of ice is possible with freezing rain. For the Winter Storm
  Watch, heavy snow possible late Thursday into Saturday. Total snow
  accumulations between 4 and 9 inches possible.

* WHERE...Portions of central and south central Montana.

* WHEN...For the Winter Weather Advisory, from 5 AM to 11 AM MST this
  morning. For the Winter Storm Watch, from Thursday afternoon
  through Saturday morning.

* IMPACTS...Impacts to travel are possible. For the Winter Weather
  Advisory, roads may become slick and hazardous due to mixed
  precipitation, including freezing rain. For the Winter Storm Watch,
  roads may become slick and hazardous due to accumulating snowfall.

* ADDITIONAL DETAILS...Rapidly falling temperatures combined with
  accumulating snow may result in a flash freeze on roadways late
  Thursday afternoon and evening. Travel may become treacherous.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts for updates on this situation.

&&

$$

URGENT - WINTER WEATHER MESSAGE
National Weather Service Billings MT
142 AM MST Wed Dec 10 2025

MTZ030>032-036-057-058-138-110845-
/O.CON.KBYZ.WW.Y.0040.251210T1500Z-251211T0000Z/
/O.CON.KBYZ.WS.A.0018.251211T2100Z-251213T1800Z/
Treasure-Northern Rosebud-Custer-Powder River-Northern Big Horn-
Southern Rosebud-Southern Big Horn-
Including the locations of Lame Deer, Biddle, Miles City,
Powderville, Ismay, Wyola, Bighorn, Sonnette, Broadus, Colstrip,
Angela, Birney, Lodge Grass, Hardin, Ashland, Forsyth, Crow Agency,
Hysham, Ingomar, Volborg, Busby, and Pryor
142 AM MST Wed Dec 10 2025

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 8 AM THIS MORNING
TO 5 PM MST THIS AFTERNOON...
...WINTER STORM WATCH REMAINS IN EFFECT FROM THURSDAY AFTERNOON
THROUGH SATURDAY MORNING...

* WHAT...For the Winter Weather Advisory, mixed precipitation
  expected today. Total snow accumulations less than 1 inch. A light
  glaze of ice is possible with freezing rain. For the Winter Storm
  Watch, heavy snow possible late Thursday into Saturday. Total snow
  accumulations between 5 and 10 inches possible.

* WHERE...Portions of south central and southeast Montana.

* WHEN...For the Winter Weather Advisory, from 8 AM this morning to 5
  PM MST this afternoon. For the Winter Storm Watch, from Thursday
  afternoon through Saturday morning.

* IMPACTS...Impacts to travel are possible. For the Winter Weather
  Advisory, roads may become slick and hazardous due to mixed
  precipitation, including freezing rain. For the Winter Storm Watch,
  roads may become slick and hazardous due to accumulating snowfall.

* ADDITIONAL DETAILS...Rapidly falling temperatures combined with
  accumulating snow may result in a flash freeze on roadways late
  Thursday afternoon and evening. Travel may become treacherous.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts for updates on this situation.

&&

$$

URGENT - WINTER WEATHER MESSAGE
National Weather Service Billings MT
142 AM MST Wed Dec 10 2025

MTZ033-037-110845-
/O.CON.KBYZ.WW.Y.0040.251210T2100Z-251211T0300Z/
/O.CON.KBYZ.WS.A.0018.251211T2100Z-251213T1800Z/
Fallon-Carter-
Including the locations of Baker, Ekalaka, Alzada, Webster,
Belltower, Plevna, and Hammond
142 AM MST Wed Dec 10 2025

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 2 PM THIS AFTERNOON
TO 8 PM MST THIS EVENING...
...WINTER STORM WATCH REMAINS IN EFFECT FROM THURSDAY AFTERNOON
THROUGH SATURDAY MORNING...

* WHAT...For the Winter Weather Advisory, mixed precipitation
  expected today. Total snow accumulations less than 1 inch. A light
  glaze of ice is possible with freezing rain. For the Winter Storm
  Watch, heavy snow possible. Total snow accumulations between 3 and
  7 inches possible.

* WHERE...Carter and Fallon.

* WHEN...For the Winter Weather Advisory, from 2 PM this afternoon to
  8 PM MST this evening. For the Winter Storm Watch, from Thursday
  afternoon through Saturday morning.

* IMPACTS...Impacts to travel are possible. For the Winter Weather
  Advisory, roads may become slick and hazardous due to mixed
  precipitation, including freezing rain. For the Winter Storm Watch,
  roads may become slick and hazardous due to accumulating snowfall.

* ADDITIONAL DETAILS...Rapidly falling temperatures combined with
  accumulating snow may result in a flash freeze on roadways late
  Thursday afternoon and evening. Travel may become treacherous.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts for updates on this situation.

&&

$$

URGENT - WINTER WEATHER MESSAGE
National Weather Service Billings MT
142 AM MST Wed Dec 10 2025

MTZ056-066-170-101800-
/O.CON.KBYZ.WW.Y.0040.251210T1200Z-251210T1800Z/
Red Lodge Foothills-Beartooth Foothills-Northern Carbon-
Including the locations of Fishtail, Roscoe, Roberts, McLeod, Joliet,
Fromberg, Red Lodge, and Nye
142 AM MST Wed Dec 10 2025

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 5 AM TO 11 AM MST
THIS MORNING...

* WHAT...Mixed precipitation expected. Total snow accumulations less
  than 1 inch. A light glaze of ice is possible with freezing rain.

* WHERE...Beartooth Foothills, Northern Carbon, and Red Lodge
  Foothills.

* WHEN...From 5 AM to 11 AM MST this morning.

* IMPACTS...Roads may become slick and hazardous this morning,
  including highways 212 and 310.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts for updates on this situation.

&&

$$

URGENT - WINTER WEATHER MESSAGE
National Weather Service Billings MT
142 AM MST Wed Dec 10 2025

MTZ169-WYZ199-110000-
/O.CON.KBYZ.WW.Y.0040.251210T1500Z-251211T0000Z/
Bighorn Canyon-Sheridan Foothills-
Including the locations of Ranchester, Sheridan, Fort Smith, Dayton,
Big Horn, and Clearmont
142 AM MST Wed Dec 10 2025

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 8 AM THIS MORNING
TO 5 PM MST THIS AFTERNOON...

* WHAT...Mixed precipitation expected. Total snow accumulations less
  than one inch. A light glaze of ice is possible with freezing rain.

* WHERE...In Montana, Bighorn Canyon. In Wyoming, Sheridan Foothills.

* WHEN...From 8 AM this morning to 5 PM MST this afternoon.

* IMPACTS...Roads may become slick and hazardous today, including
  Interstate 90 through Sheridan and over Aberdeen Hill.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts for updates on this situation.

&&

$$

URGENT - WINTER WEATHER MESSAGE
National Weather Service Billings MT
142 AM MST Wed Dec 10 2025

WYZ198-110000-
/O.CON.KBYZ.WW.Y.0040.000000T0000Z-251211T0000Z/
Northeast Bighorn Mountains-
Including the locations of Burgess Jct and Story
142 AM MST Wed Dec 10 2025

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST THIS
AFTERNOON...

* WHAT...Occasional snow and blowing snow. Additional snow
  accumulations of 3 to 6 inches. Winds gusting as high as 40 mph.

* WHERE...Northeast Bighorn Mountains.

* WHEN...Until 5 PM MST this afternoon.

* IMPACTS...Travel will be difficult on Highway 14 through the
  Bighorns. Blowing snow may significantly reduce visibility. Outdoor
  recreation will be impacted by wintry conditions.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. For the latest road
conditions, call 5 1 1.

&&

$$

URGENT - WINTER WEATHER MESSAGE
National Weather Service Aberdeen SD
213 AM CST Wed Dec 10 2025

SDZ003-004-009-010-015>017-033>037-051-101815-
/O.CON.KABR.WW.Y.0017.251211T0000Z-251211T1800Z/
Corson-Campbell-Walworth-Edmunds-Dewey-Potter-Faulk-Stanley-Sully-
Hughes-Hyde-Hand-Buffalo-
Including the cities of Fort Thompson, Highmore, Mobridge,
Herreid, Gettysburg, Faulkton, Pierre, Fort Pierre, Isabel,
Onida, Miller, Ipswich, and McIntosh
213 AM CST Wed Dec 10 2025 /113 AM MST Wed Dec 10 2025/

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 6 PM CST /5 PM
MST/ THIS EVENING TO NOON CST /11 AM MST/ THURSDAY...

* WHAT...Mixed precipitation expected. Total snow accumulations up
  to one inch and ice accumulations up to one tenth of an inch.

* WHERE...Portions of central and north central South Dakota.

* WHEN...From 6 PM CST /5 PM MST/ this evening to noon CST /11 AM
  MST/ Thursday.

* IMPACTS...Plan on slippery road conditions. The hazardous
  conditions could impact the Thursday morning commute.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. The latest road
conditions can be obtained by calling 5 1 1.

&&

$$

10

URGENT - WINTER WEATHER MESSAGE
National Weather Service Glasgow MT
241 PM MST Tue Dec 9 2025

MTZ016-017-021>023-025-026-059-060-101200-
/O.NEW.KGGW.WS.A.0004.251212T0300Z-251213T1800Z/
/O.CON.KGGW.WW.Y.0019.251210T1100Z-251212T0300Z/
Central and Southeast Phillips-Central and Southern Valley-
Petroleum-Garfield-McCone-Dawson-Prairie-Northern Phillips-
Southwest Phillips-
Including Saco, Glendive, Zortman, Fort Peck, Terry, Winnett,
Glasgow, Frazer, Circle, Richey, Malta, Hinsdale, Whitewater, and
Jordan
241 PM MST Tue Dec 9 2025

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 4 AM WEDNESDAY TO
8 PM MST THURSDAY...
...WINTER STORM WATCH IN EFFECT FROM THURSDAY EVENING THROUGH
SATURDAY MORNING...

* WHAT...Later this week, for the Winter Storm Watch, heavy snow
  possible. Total snow accumulations between 4 and 14 inches
  possible.

* WHERE...Less toward the northeast corner of Montana. More toward
  central Montana.

* WHEN...Later this week, for the Winter Storm Watch, from Thursday
  evening through Saturday morning.

* IMPACTS...Travel could be very difficult to impossible. The
  hazardous conditions could impact multiple days` commutes. Roads,
  and especially bridges and overpasses, will likely become snow
  covered, slick and hazardous.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts for updates on this situation.

Persons should consider delaying all travel. Motorists should use
extreme caution if travel is absolutely necessary.

Persons should consider delaying all travel. If travel is absolutely
necessary, drive with extreme caution. Consider taking a winter
storm kit along with you, including such items as tire chains,
booster cables, flashlight, shovel, blankets and extra clothing.
Also take water, a first aid kit, and anything else that would help
you survive in case you become stranded.

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.

Be prepared for slippery roads. Slow down and use caution while
driving. If you are going outside, watch your first few steps taken
on stairs, sidewalks, and driveways. These surfaces could be icy and
slippery, increasing your risk of a fall and injury.

&&

$$

URGENT - WINTER WEATHER MESSAGE
National Weather Service Glasgow MT
241 PM MST Tue Dec 9 2025

MTZ018>020-024-027-061-062-101200-
/O.CON.KGGW.WW.Y.0019.251210T1100Z-251212T0300Z/
Daniels-Sheridan-Western Roosevelt-Richland-Wibaux-Northern
Valley-Eastern Roosevelt-
Including Opheim, Plentywood, Fairview, Wolf Point, Poplar,
Culbertson, Wibaux, Medicine Lake, Scobey, and Sidney
241 PM MST Tue Dec 9 2025

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 4 AM WEDNESDAY TO
8 PM MST THURSDAY...

* WHAT...Mixed precipitation expected. Total snow accumulations
  between 1 and 3 inches and ice accumulations of a trace to around
  0.05 inch.

* WHERE...Most of northeast Montana, especially north and east of
  Fort Peck Lake.

* WHEN...From 4 AM Wednesday to 8 PM MST Thursday.

* IMPACTS...Roads, and especially bridges and overpasses, will
  likely become slick and hazardous. Plan on slippery road
  conditions. The hazardous conditions could impact the Wednesday
  morning and evening commutes.

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.

Be prepared for slippery roads. Slow down and use caution while
driving. If you are going outside, watch your first few steps taken
on stairs, sidewalks, and driveways. These surfaces could be icy and
slippery, increasing your risk of a fall and injury.

&&

$$

Mickelson

URGENT - WINTER WEATHER MESSAGE
National Weather Service Riverton WY
213 PM MST Tue Dec 9 2025

WYZ008-101400-
/O.CON.KRIW.WW.Y.0036.000000T0000Z-251211T0000Z/
Bighorn Mountains West-
213 PM MST Tue Dec 9 2025

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST
WEDNESDAY...

* WHAT...Snow. Additional snow accumulations up to 8 to 12 inches
  across higher peaks in the northern part of the Range, including
  along Granite Pass. Around 4 to 10 inches across Powder River
  Pass. 1 to 3 inches of snow possible across the southern part of
  the Range. Winds gusting as high as 50 to 60 mph.

* WHERE...Bighorn Mountains West.

* WHEN...Until 5 PM MST Wednesday.

* IMPACTS...Travel could be very difficult across Powder River and
  Granite Passes. Significant blowing and drifting of snow is
  possible. Backcountry travel is not advised.

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 Rapid City SD
1215 PM MST Tue Dec 9 2025

SDZ001-002-012>014-032-078-101200-
/O.NEW.KUNR.WW.Y.0018.251211T0000Z-251211T1800Z/
Harding-Northern Perkins-Butte-Northern Meade Co Plains-Ziebach-
Haakon-Southern Perkins-
Including the cities of Dupree, Buffalo, Howes, Opal, Belle
Fourche Reservoir, Shadehill, Ludlow, Belle Fourche, Camp Crook,
Red Owl, Sorum, Zeona, Mud Butte, Cherry Creek, Bison, Newell,
Reva, Philip, Milesville, Redig, Lemmon, Glad Valley, Meadow,
Fruitdale, Usta, Ladner, Faith, Vale, Hoover, Prairie City, South
Eagle Butte, and Midland
1215 PM MST Tue Dec 9 2025

...WINTER WEATHER ADVISORY IN EFFECT FROM 5 PM WEDNESDAY TO 11 AM
MST THURSDAY...

* WHAT...Mixed precipitation expected. Total snow accumulations up
  to one inch and ice accumulations around one tenth of an inch.

* WHERE...Portions of northwestern and southwestern South Dakota.

* WHEN...From 5 PM Wednesday to 11 AM MST Thursday.

* IMPACTS...Roads, and especially bridges and overpasses, will
  likely become slick and hazardous. Plan on slippery road
  conditions. The hazardous conditions could impact the Wednesday
  evening and Thursday morning commutes.

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.

Be prepared for slippery roads. Slow down and use caution while
driving. If you are going outside, watch your first few steps taken
on stairs, sidewalks, and driveways. These surfaces could be icy and
slippery, increasing your risk of a fall and injury.

&&

$$

AW

URGENT - WINTER WEATHER MESSAGE
National Weather Service Missoula MT
1242 AM MST Tue Dec 9 2025

MTZ002-043-101800-
/O.NEW.KMSO.WW.Y.0047.251210T0700Z-251210T1800Z/
West Glacier Region-Potomac/Seeley Lake Region-
1242 AM MST Tue Dec 9 2025

...WINTER WEATHER ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO 11 AM
MST WEDNESDAY...

* WHAT...Snow expected. There is a likelihood of moderate winter
  weather impacts. Total snow accumulations of 2 to 5 inches.

* WHERE...Marias Pass, Highway 83 Bigfork to Swan Lake, Highway 83
  Seeley Lake to Condon, Glacier National Park, Highway 200 Bonner
  to Greenough, Polebridge, Essex, I-90 East Missoula to Bearmouth,
  and Bad Rock Canyon.

* WHEN...From midnight tonight to 11 AM MST Wednesday.

* IMPACTS...For MODERATE winter weather impacts, expect disruptions
  to normal activities. Difficult traveling conditions. Use extra
  caution while driving. The difficult conditions could impact the
  Wednesday morning commute, especially over higher passes.

* ADDITIONAL DETAILS...Snowfall rates of 1 inch per hour will be
  possible between 4am and 7am

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.

&&

$$


Wind Advisory


URGENT - WEATHER MESSAGE
National Weather Service Billings MT
120 AM MST Wed Dec 10 2025

MTZ065-066-110830-
/O.CON.KBYZ.WI.Y.0024.251210T1800Z-251212T0000Z/
Livingston Area-Beartooth Foothills-
Including the locations of Fishtail, Mc Leod, Dean, Limestone,
Livingston, and Nye
120 AM MST Wed Dec 10 2025

...WIND ADVISORY REMAINS IN EFFECT FROM 11 AM THIS MORNING TO 5 PM
MST THURSDAY...

* WHAT...Southwest winds gusting up to 70 mph expected.

* WHERE...Beartooth Foothills and Livingston Area.

* WHEN...From 11 AM this morning to 5 PM MST Thursday.

* IMPACTS...Strong crosswinds will make travel difficult along
  Interstate 90 from Livingston to Big Timber and roads along the
  Beartooth Foothills.

* ADDITIONAL DETAILS...Strongest winds are expected tonight through
  Thursday morning.

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

Lester

URGENT - WEATHER MESSAGE
National Weather Service Missoula MT
116 AM MST Wed Dec 10 2025

MTZ005-110200-
/O.NEW.KMSO.WI.Y.0011.251210T1500Z-251211T0200Z/
Missoula/Bitterroot Valleys-
116 AM MST Wed Dec 10 2025

...WIND ADVISORY IN EFFECT FROM 8 AM THIS MORNING TO 7 PM MST THIS
EVENING...

* WHAT...South to southeast winds 15 to 20 mph with gusts up to 45
  mph expected. The strongest gusts are expected in the Bitterroot
  valley.

* WHERE...Missoula/Bitterroot Valleys.

* WHEN...From 8 AM this morning to 7 PM MST this evening.

* 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.

&&

$$

URGENT - WEATHER MESSAGE
National Weather Service Missoula MT
116 AM MST Wed Dec 10 2025

MTZ007-110200-
/O.NEW.KMSO.WI.Y.0011.251210T1500Z-251211T0200Z/
Butte/Blackfoot Region-
116 AM MST Wed Dec 10 2025

...WIND ADVISORY IN EFFECT FROM 8 AM THIS MORNING TO 7 PM MST THIS
EVENING...

* WHAT...Southwest winds 15 to 25 mph with gusts up to 50 mph
  expected.

* WHERE...Butte/Blackfoot Region.

* WHEN...From 8 AM this morning to 7 PM MST this evening.

* 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.

&&

$$


Winter Storm Watch


URGENT - WINTER WEATHER MESSAGE
National Weather Service Great Falls MT
305 AM MST Wed Dec 10 2025

MTZ301-307-110000-
/O.CON.KTFX.WW.Y.0054.000000T0000Z-251210T1800Z/
/O.CON.KTFX.WS.A.0019.251211T2100Z-251213T1200Z/
East Glacier Park Region-Southern Rocky Mountain Front-
Including the following locations: Saint Mary, Logan Pass, Kiowa,
Marias Pass, Rogers Pass, Babb, and East Glacier Park
305 AM MST Wed Dec 10 2025

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST THIS
MORNING...
...WINTER STORM WATCH REMAINS IN EFFECT FROM THURSDAY AFTERNOON
THROUGH LATE FRIDAY NIGHT...

* WHAT...For the Winter Weather Advisory, snow and freezing rain
  expected. Total snow accumulations between 2 to 4 inches on Marias
  Pass, and up to 7 inches at ridge tops. Light ice accumulations.
  For the winter storm watch, heavy snow possible. Total snow
  accumulations between 7 and 12 inches possible along Marias Pass,
  with over a foot of snow at the higher peaks.

* WHERE...The Continental Divide along the Rocky Mountain Front.

* WHEN...For the Winter Weather Advisory, until 11 AM MST this
  morning. For the Winter Storm Watch, from Thursday afternoon
  through late Friday night.

* IMPACTS...Roads, and especially bridges and overpasses, will
  likely become slick and hazardous. 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. Very strong winds could cause extensive 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.

&&

$$

Brusda

URGENT - WINTER WEATHER MESSAGE
National Weather Service Great Falls MT
305 AM MST Wed Dec 10 2025

MTZ302-308>310-312>314-317-318-110000-
/O.EXA.KTFX.WW.Y.0054.000000T0000Z-251210T1800Z/
/O.CON.KTFX.WS.A.0019.251211T2100Z-251213T1200Z/
Northern High Plains-Southern High Plains-Eastern Pondera and
Eastern Teton-Western and Central Chouteau County-Cascade County
below 5000ft-Judith Basin County and Judith Gap-Fergus County
below 4500ft-Little Belt and Highwood Mountains-Snowy and Judith
Mountains-
Including the following locations: Floweree, Stanford, Monarch,
Heart Butte, Benchland, Carter, Fort Benton, Hilger, Lewistown,
Browning, Raynesford, Pendroy, Ledger, Moccasin, Conrad, Dupuyer,
Brady, Hobson, Choteau, Kings Hill Pass, Neihart, Great Falls,
Bynum, Windham, and Geyser
305 AM MST Wed Dec 10 2025

...WINTER WEATHER ADVISORY IN EFFECT UNTIL 11 AM MST THIS MORNING...
...WINTER STORM WATCH REMAINS IN EFFECT FROM THURSDAY AFTERNOON
THROUGH LATE FRIDAY NIGHT...

* WHAT...For the Winter Weather Advisory, snow and freezing rain
  expected. Total snow accumulations up to one inch along with a
  light glace of ice. For the winter storm watch, heavy snow
  possible. Total snow accumulations between 5 and 12 inches
  possible across lower elevations, with locally higher amounts at
  the higher mountain peaks. Winds could gust as high as 35 mph.

* WHERE...Portions of central and north central Montana.

* WHEN...For the Winter Weather Advisory, until 11 AM MST this
  morning. For the Winter Storm Watch, from Thursday afternoon
  through late Friday night.

* IMPACTS...Roads, and especially bridges and overpasses, will
  likely become slick and hazardous. 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. The hazardous conditions could impact the Wednesday
  morning and evening commutes. 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.

&&

$$

URGENT - WINTER WEATHER MESSAGE
National Weather Service Great Falls MT
305 AM MST Wed Dec 10 2025

MTZ303>306-311-110000-
/O.EXA.KTFX.WW.Y.0054.000000T0000Z-251210T1800Z/
/O.CON.KTFX.WS.A.0019.251211T1800Z-251213T1200Z/
Eastern Glacier, Western Toole, and Central Pondera-Eastern Toole
and Liberty-Hill County-Northern Blaine County-Bears Paw
Mountains and Southern Blaine-
Including the following locations: Fort Belknap, Galata, Devon,
Havre, Joplin, Chinook, Harlem, Santa Rita, Rocky Boy, Chester,
Shelby, Zurich, Hogeland, Ethridge, Lothair, Whitlash, and Cut
Bank
305 AM MST Wed Dec 10 2025

...WINTER WEATHER ADVISORY IN EFFECT UNTIL 11 AM MST THIS MORNING...
...WINTER STORM WATCH REMAINS IN EFFECT FROM THURSDAY MORNING
THROUGH LATE FRIDAY NIGHT...

* WHAT...For the Winter Weather Advisory, snow and freezing rain
  expected. Total snow accumulations up to an inch along with a
  light glace of ice. Snow accumulations up to 3 inches in the Bears
  Paw Mountains. For the winter storm watch, heavy snow possible.
  Total snow accumulations between 5 and 12 inches possible across
  lower elevations, with locally higher amounts in the Bears Paws.

* WHERE...Eastern Glacier, Western Toole, and Central Pondera
  Counties, Eastern Toole and Liberty Counties, Hill County,
  Northern Blaine County, and Bears Paw Mountains and Southern
  Blaine.

* WHEN...For the Winter Weather Advisory, until 11 AM MST this
  morning. For the Winter Storm Watch, from Thursday morning through
  late Friday night.

* IMPACTS...Roads, and especially bridges and overpasses, will
  likely become slick and hazardous. Travel could be very difficult.

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 Billings MT
142 AM MST Wed Dec 10 2025

MTZ029-034-042-063-141-172-173-228-235-110845-
/O.CON.KBYZ.WW.Y.0040.251210T1200Z-251210T1800Z/
/O.CON.KBYZ.WS.A.0018.251211T2100Z-251213T1800Z/
Musselshell-Northern Stillwater-Golden Valley-Judith Gap-Northern
Sweet Grass-Melville Foothills-Northeastern Yellowstone-Southern
Wheatland-Southwestern Yellowstone-
Including the locations of Musselshell, Ryegate, Columbus, Melstone,
Rapelje, Judith Gap, Reed Point, Pompeys Pillar, Absarokee, Park
City, Harlowton, Broadview, Lavina, Twodot, Custer, Laurel, Shawmut,
Billings, Roundup, Huntley, Big Timber, and Melville
142 AM MST Wed Dec 10 2025

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 5 AM TO 11 AM MST
THIS MORNING...
...WINTER STORM WATCH REMAINS IN EFFECT FROM THURSDAY AFTERNOON
THROUGH SATURDAY MORNING...

* WHAT...For the Winter Weather Advisory, mixed precipitation
  expected today. Total snow accumulations less than 1 inch. A light
  glaze of ice is possible with freezing rain. For the Winter Storm
  Watch, heavy snow possible late Thursday into Saturday. Total snow
  accumulations between 4 and 9 inches possible.

* WHERE...Portions of central and south central Montana.

* WHEN...For the Winter Weather Advisory, from 5 AM to 11 AM MST this
  morning. For the Winter Storm Watch, from Thursday afternoon
  through Saturday morning.

* IMPACTS...Impacts to travel are possible. For the Winter Weather
  Advisory, roads may become slick and hazardous due to mixed
  precipitation, including freezing rain. For the Winter Storm Watch,
  roads may become slick and hazardous due to accumulating snowfall.

* ADDITIONAL DETAILS...Rapidly falling temperatures combined with
  accumulating snow may result in a flash freeze on roadways late
  Thursday afternoon and evening. Travel may become treacherous.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts for updates on this situation.

&&

$$

URGENT - WINTER WEATHER MESSAGE
National Weather Service Billings MT
142 AM MST Wed Dec 10 2025

MTZ030>032-036-057-058-138-110845-
/O.CON.KBYZ.WW.Y.0040.251210T1500Z-251211T0000Z/
/O.CON.KBYZ.WS.A.0018.251211T2100Z-251213T1800Z/
Treasure-Northern Rosebud-Custer-Powder River-Northern Big Horn-
Southern Rosebud-Southern Big Horn-
Including the locations of Lame Deer, Biddle, Miles City,
Powderville, Ismay, Wyola, Bighorn, Sonnette, Broadus, Colstrip,
Angela, Birney, Lodge Grass, Hardin, Ashland, Forsyth, Crow Agency,
Hysham, Ingomar, Volborg, Busby, and Pryor
142 AM MST Wed Dec 10 2025

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 8 AM THIS MORNING
TO 5 PM MST THIS AFTERNOON...
...WINTER STORM WATCH REMAINS IN EFFECT FROM THURSDAY AFTERNOON
THROUGH SATURDAY MORNING...

* WHAT...For the Winter Weather Advisory, mixed precipitation
  expected today. Total snow accumulations less than 1 inch. A light
  glaze of ice is possible with freezing rain. For the Winter Storm
  Watch, heavy snow possible late Thursday into Saturday. Total snow
  accumulations between 5 and 10 inches possible.

* WHERE...Portions of south central and southeast Montana.

* WHEN...For the Winter Weather Advisory, from 8 AM this morning to 5
  PM MST this afternoon. For the Winter Storm Watch, from Thursday
  afternoon through Saturday morning.

* IMPACTS...Impacts to travel are possible. For the Winter Weather
  Advisory, roads may become slick and hazardous due to mixed
  precipitation, including freezing rain. For the Winter Storm Watch,
  roads may become slick and hazardous due to accumulating snowfall.

* ADDITIONAL DETAILS...Rapidly falling temperatures combined with
  accumulating snow may result in a flash freeze on roadways late
  Thursday afternoon and evening. Travel may become treacherous.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts for updates on this situation.

&&

$$

URGENT - WINTER WEATHER MESSAGE
National Weather Service Billings MT
142 AM MST Wed Dec 10 2025

MTZ033-037-110845-
/O.CON.KBYZ.WW.Y.0040.251210T2100Z-251211T0300Z/
/O.CON.KBYZ.WS.A.0018.251211T2100Z-251213T1800Z/
Fallon-Carter-
Including the locations of Baker, Ekalaka, Alzada, Webster,
Belltower, Plevna, and Hammond
142 AM MST Wed Dec 10 2025

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 2 PM THIS AFTERNOON
TO 8 PM MST THIS EVENING...
...WINTER STORM WATCH REMAINS IN EFFECT FROM THURSDAY AFTERNOON
THROUGH SATURDAY MORNING...

* WHAT...For the Winter Weather Advisory, mixed precipitation
  expected today. Total snow accumulations less than 1 inch. A light
  glaze of ice is possible with freezing rain. For the Winter Storm
  Watch, heavy snow possible. Total snow accumulations between 3 and
  7 inches possible.

* WHERE...Carter and Fallon.

* WHEN...For the Winter Weather Advisory, from 2 PM this afternoon to
  8 PM MST this evening. For the Winter Storm Watch, from Thursday
  afternoon through Saturday morning.

* IMPACTS...Impacts to travel are possible. For the Winter Weather
  Advisory, roads may become slick and hazardous due to mixed
  precipitation, including freezing rain. For the Winter Storm Watch,
  roads may become slick and hazardous due to accumulating snowfall.

* ADDITIONAL DETAILS...Rapidly falling temperatures combined with
  accumulating snow may result in a flash freeze on roadways late
  Thursday afternoon and evening. Travel may become treacherous.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts for updates on this situation.

&&

$$

URGENT - WINTER WEATHER MESSAGE
National Weather Service Billings MT
142 AM MST Wed Dec 10 2025

MTZ068-110845-
/O.CON.KBYZ.WS.A.0018.251211T2100Z-251213T1800Z/
Crazy Mountains-
142 AM MST Wed Dec 10 2025

...WINTER STORM WATCH REMAINS IN EFFECT FROM THURSDAY AFTERNOON
THROUGH SATURDAY MORNING...

* WHAT...Periods of heavy snow and blowing snow possible. Total snow
  accumulations between 10 and 18 inches. Winds could gust as high as
  60 mph.

* WHERE...Crazy Mountains.

* WHEN...From Thursday afternoon through Saturday morning.

* IMPACTS...Recreation in the high country may be impacted by heavy
  accumulating snow and blowing snow. Avalanche danger may increase.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts for updates on this situation.

&&

$$

Additional graphics for this hazard can be found at
http://www.weather.gov/billings

Lester

URGENT - WINTER WEATHER MESSAGE
National Weather Service Glasgow MT
241 PM MST Tue Dec 9 2025

MTZ016-017-021>023-025-026-059-060-101200-
/O.NEW.KGGW.WS.A.0004.251212T0300Z-251213T1800Z/
/O.CON.KGGW.WW.Y.0019.251210T1100Z-251212T0300Z/
Central and Southeast Phillips-Central and Southern Valley-
Petroleum-Garfield-McCone-Dawson-Prairie-Northern Phillips-
Southwest Phillips-
Including Saco, Glendive, Zortman, Fort Peck, Terry, Winnett,
Glasgow, Frazer, Circle, Richey, Malta, Hinsdale, Whitewater, and
Jordan
241 PM MST Tue Dec 9 2025

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 4 AM WEDNESDAY TO
8 PM MST THURSDAY...
...WINTER STORM WATCH IN EFFECT FROM THURSDAY EVENING THROUGH
SATURDAY MORNING...

* WHAT...Later this week, for the Winter Storm Watch, heavy snow
  possible. Total snow accumulations between 4 and 14 inches
  possible.

* WHERE...Less toward the northeast corner of Montana. More toward
  central Montana.

* WHEN...Later this week, for the Winter Storm Watch, from Thursday
  evening through Saturday morning.

* IMPACTS...Travel could be very difficult to impossible. The
  hazardous conditions could impact multiple days` commutes. Roads,
  and especially bridges and overpasses, will likely become snow
  covered, slick and hazardous.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts for updates on this situation.

Persons should consider delaying all travel. Motorists should use
extreme caution if travel is absolutely necessary.

Persons should consider delaying all travel. If travel is absolutely
necessary, drive with extreme caution. Consider taking a winter
storm kit along with you, including such items as tire chains,
booster cables, flashlight, shovel, blankets and extra clothing.
Also take water, a first aid kit, and anything else that would help
you survive in case you become stranded.

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.

Be prepared for slippery roads. Slow down and use caution while
driving. If you are going outside, watch your first few steps taken
on stairs, sidewalks, and driveways. These surfaces could be icy and
slippery, increasing your risk of a fall and injury.

&&

$$


Flood Watch


Flood Watch
National Weather Service Missoula MT
1253 PM MST Mon Dec 8 2025

.Near-record precipitation is possible this week as two Atmospheric
Rivers will move through the region. The first one arrives today and
continues through Tuesday, followed by a second, stronger one
Tuesday night through Thursday. Between 4 and 10 inches of moderate
to heavy rain are expected in the mountains. For some locations,
near record rainfall amounts are possible. The rain, falling on the
current snowpack, combined with mild nighttime temperatures will
increase snowmelt. Flows in rivers may increase quickly and reach
critical levels.

IDC035-049-092115-
/O.EXT.KMSO.FA.A.0009.251209T0000Z-251212T0000Z/
/00000.0.RS.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Clearwater-Idaho-
1253 PM MST Mon Dec 8 2025 /1153 AM PST Mon Dec 8 2025/

...FLOOD WATCH NOW IN EFFECT FROM 5 PM MST /4 PM PST/ THIS AFTERNOON
THROUGH THURSDAY AFTERNOON...

* WHAT...Flooding caused by rain and snowmelt continues to be
  possible.

* WHERE...Portions of central and panhandle Idaho, including the
  following counties, in central Idaho, Idaho. In panhandle Idaho,
  Clearwater.

* WHEN...From 5 PM MST  /4 PM PST/ this afternoon through Thursday
  afternoon.

* IMPACTS...Creeks and streams may rise out of their banks. Flooding
  may occur in poor drainage and urban areas. Storm drains and
  ditches may become clogged with debris. People, structures, and
  roads located below steep slopes, in canyons, and near the mouths
  of canyons may be at risk from landslides.

* ADDITIONAL DETAILS...
  - A prolonged atmospheric river is expected to bring periods of
    heavy rain to Idaho and Clearwater Counties, Monday night
    through Thursday. Rising snow levels will lead to a rain on
    snow event for elevations below 7,000 feet Monday night into
    Tuesday morning. The precipitation rates will briefly
    decrease Tuesday afternoon, before a second surge of moisture
    arrives Tuesday night into Thursday morning with snow levels
    rising to near 8,000 feet. By Thursday, significant
    precipitation totals are forecast, with 2 to 5 inches in the
    valleys and 5 to 10 inches in the mountains, with locally
    higher totals over mountain crests. Landslides in areas of
    steep terrain and minor flooding in urban and poor drainage
    areas is possible.
  - https://www.weather.gov/mso/hydrology

PRECAUTIONARY/PREPAREDNESS ACTIONS...

You should monitor later forecasts and be alert for possible Flood
Warnings. Those living in areas prone to flooding should be prepared
to take action should flooding develop. Monitor basements for water
intrusion. You may want to preemptively shovel snow away from your
home.

&&

$$

Flood Watch
National Weather Service Missoula MT
1253 PM MST Mon Dec 8 2025

.Near-record precipitation is possible this week as two Atmospheric
Rivers will move through the region. The first one arrives today and
continues through Tuesday, followed by a second, stronger one
Tuesday night through Thursday. Between 4 and 10 inches of moderate
to heavy rain are expected in the mountains. For some locations,
near record rainfall amounts are possible. The rain, falling on the
current snowpack, combined with mild nighttime temperatures will
increase snowmelt. Flows in rivers may increase quickly and reach
critical levels.

MTC029-047-053-089-092115-
/O.EXB.KMSO.FA.A.0009.251209T0000Z-251212T0000Z/
/00000.0.RS.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Flathead-Lake-Lincoln-Sanders-
1253 PM MST Mon Dec 8 2025

...FLOOD WATCH IN EFFECT FROM 5 PM MST THIS AFTERNOON THROUGH
THURSDAY AFTERNOON...

* WHAT...Flooding caused by rain and snowmelt continues to be
  possible.

* WHERE...A portion of northwest Montana, including the following
  counties, Flathead, Lake, Lincoln and Sanders.

* WHEN...From 5 PM MST this afternoon through Thursday afternoon.

* IMPACTS...Creeks and streams may rise out of their banks. Flooding
  may occur in poor drainage and urban areas. Storm drains and
  ditches may become clogged with debris. Rockfall is possible.

* ADDITIONAL DETAILS...
  - A prolonged atmospheric river event will bring periods of
    moderate to heavy rainfall to the region. Snow levels will
    rise to 6,000 to 7,000 feet during the first moisture plume
    on Tuesday. Snow levels will fall temporarily to 3,000 to
    5,000 feet Tuesday night before rising again to 6,000 to
    9,000 feet Wednesday and Thursday. Between 4 and 10 inches of
    total precipitation will fall this week in the mountains and
    upslope regions and between 1 and 4 inches of total rainfall
    is expected in the valleys. Landslides in areas of steep
    terrain and minor flooding in urban and poor drainage areas
    are possible.
  - https://www.weather.gov/mso/hydrology

PRECAUTIONARY/PREPAREDNESS ACTIONS...

You should monitor later forecasts and be alert for possible Flood
Warnings. Those living in areas prone to flooding should be prepared
to take action should flooding develop. Monitor basements for water
intrusion. You may want to preemptively shovel snow away from your
home.

&&

$$

Flood Watch
National Weather Service Missoula MT
1253 PM MST Mon Dec 8 2025

.Near-record precipitation is possible this week as two Atmospheric
Rivers will move through the region. The first one arrives today and
continues through Tuesday, followed by a second, stronger one
Tuesday night through Thursday. Between 4 and 10 inches of moderate
to heavy rain are expected in the mountains. For some locations,
near record rainfall amounts are possible. The rain, falling on the
current snowpack, combined with mild nighttime temperatures will
increase snowmelt. Flows in rivers may increase quickly and reach
critical levels.

MTC061-092115-
/O.EXT.KMSO.FA.A.0009.251209T0000Z-251212T0000Z/
/00000.0.RS.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Mineral-
1253 PM MST Mon Dec 8 2025

...FLOOD WATCH NOW IN EFFECT FROM 5 PM MST THIS AFTERNOON THROUGH
THURSDAY AFTERNOON...

* WHAT...Flooding caused by rain and snowmelt continues to be
  possible.

* WHERE...A portion of west central Montana, including the following
  county, Mineral.

* WHEN...From 5 PM MST this afternoon through Thursday afternoon.

* IMPACTS...Creeks and streams may rise out of their banks. Flooding
  may occur in poor drainage and urban areas. Storm drains and
  ditches may become clogged with debris. People, structures, and
  roads located below steep slopes, in canyons, and near the mouths
  of canyons may be at risk from landslides.

* ADDITIONAL DETAILS...
  - A prolonged atmospheric river is expected to bring periods of
    heavy rain to Mineral County, Monday night through Thursday.
    Rising snow levels will lead to a rain on snow event for
    elevations below 7,000 feet Monday night into Tuesday
    morning. The precipitation rates will briefly decrease
    Tuesday afternoon, before a second surge of moisture arrives
    Tuesday night into Thursday morning with snow levels rising
    to around 8,000 feet. By Thursday, significant precipitation
    totals are forecast, with 1 to 5 inches in the valleys and 5
    to 8 inches in the mountains, with locally higher totals over
    mountain crests. Landslides in areas of steep terrain and
    minor flooding in urban and poor drainage areas is possible.
  - https://www.weather.gov/mso/hydrology

PRECAUTIONARY/PREPAREDNESS ACTIONS...

You should monitor later forecasts and be alert for possible Flood
Warnings. Those living in areas prone to flooding should be prepared
to take action should flooding develop. Monitor basements for water
intrusion. You may want to preemptively shovel snow away from your
home.

&&

$$


Hazardous Weather Outlook


Hazardous Weather Outlook
National Weather Service Bismarck ND
405 AM CST Wed Dec 10 2025

NDZ009-010-111015-
Williams-Mountrail-
405 AM CST Wed Dec 10 2025

This Hazardous Weather Outlook is for portions of northwest North
Dakota.

.DAY ONE...Today and Tonight

A Winter Weather Advisory is effect late this afternoon through
Thursday afternoon. See weather.gov/bis for details.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday

Dangerously cold wind chills are possible Thursday night through
Sunday morning.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed.

$$

Hazardous Weather Outlook
National Weather Service Bismarck ND
405 AM CST Wed Dec 10 2025

NDZ017>021-031>035-040>046-111015-
McKenzie-Dunn-Mercer-Oliver-McLean-Golden Valley-Billings-Stark-
Morton-Burleigh-Slope-Hettinger-Grant-Bowman-Adams-Sioux-Emmons-
405 AM CST Wed Dec 10 2025 /305 AM MST Wed Dec 10 2025/

This Hazardous Weather Outlook is for portions of northwest North
Dakota, south central North Dakota, and southwest North Dakota.

.DAY ONE...Today and Tonight

A Winter Weather Advisory is effect late this afternoon through
Thursday afternoon. See weather.gov/bis for details.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday

Dangerously cold wind chills are possible Thursday night.

Another round of accumulating snow is possible Friday through
early Saturday, with medium to high chances for southwest North
Dakota to exceed 2 inches of snow.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed.

$$

Hazardous Weather Outlook
National Weather Service Rapid City SD
435 AM MST Tue Dec 9 2025

SDZ001-002-012>014-032-073-078-101400-
Harding-Northern Perkins-Butte-Northern Meade Co Plains-Ziebach-
Haakon-Southern Meade Co Plains-Southern Perkins-
435 AM MST Tue Dec 9 2025

This Hazardous Weather Outlook is for portions of northwestern
South Dakota...and southwestern South Dakota.

.DAY ONE...Today and Tonight

Northwest winds will become strong today, with gusts of 50 to 65
mph. See the High Wind Warning (NPWUNR) for more information.

The Grassland Fire Danger will be in the high to extreme category
today.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday

Unsettled and colder weather is expected for the second half of
the week, with daily chances of snow. Amounts are still uncertain
but could be moderate in some areas. Light freezing rain will also
be possible Wednesday night and Thursday morning.

.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
435 AM MST Tue Dec 9 2025

SDZ024-028-029-WYZ054>059-101400-
Northern Black Hills-Central Black Hills-Southern Black Hills-
Northern Campbell-Southern Campbell-Western Crook-
Wyoming Black Hills-Weston County Plains-Newcastle-
435 AM MST Tue Dec 9 2025

This Hazardous Weather Outlook is for portions of the Black Hills
of South Dakota...northeast Wyoming...and the Black Hills of
Wyoming.

.DAY ONE...Today and Tonight

Northwest winds will become strong today, with gusts of 45 to 55
mph.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday

Unsettled and colder weather is expected for the second half of
the week, with daily chances of snow. Amounts are still uncertain
but could be moderate in some areas.

.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
435 AM MST Tue Dec 9 2025

SDZ025>027-030-031-041>044-046-047-049-072-074>077-WYZ060-101400-
Northern Foothills-Rapid City-Southern Foothills-Custer Co Plains-
Pennington Co Plains-Western Fall River-Northern Oglala Lakota-
Northern Jackson-Bennett-Mellette-Todd-Tripp-
Sturgis/Piedmont Foothills-Hermosa Foothills-Eastern Fall River-
Southern Oglala Lakota-Southern Jackson-Northeastern Crook-
435 AM MST Tue Dec 9 2025 /535 AM CST Tue Dec 9 2025/

This Hazardous Weather Outlook is for portions of western South
Dakota and northeastern Wyoming.

.DAY ONE...Today and Tonight

Northwest winds will become strong today, with gusts of 50 to 65
mph. See the High Wind Warning (NPWUNR) for more information.

The Grassland Fire Danger will be in the high to extreme category
today.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday

Unsettled and colder weather is expected for the second half of
the week, with daily chances of snow. Amounts are still uncertain
but could be moderate in some areas.

.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 Aberdeen SD
514 AM CST Tue Dec 9 2025

MNZ039-046-SDZ003>011-015>023-101115-
Traverse-Big Stone-Corson-Campbell-McPherson-Brown-Marshall-Roberts-
Walworth-Edmunds-Day-Dewey-Potter-Faulk-Spink-Clark-Codington-Grant-
Hamlin-Deuel-
514 AM CST Tue Dec 9 2025 /414 AM MST Tue Dec 9 2025/

This Hazardous Weather Outlook is for west central Minnesota, north
central South Dakota and northeast South Dakota.

.DAY ONE...Today and tonight.

Freezing rain is expected across portions of north central and
northeast South Dakota and west central Minnesota this morning into
early this afternoon before temperatures warm up enough for
precipitation to fall as rain.

Very strong northwest winds are expected this afternoon through
tonight. Sustained winds in excess of 40 mph, gusting in excess of
60 mph, are expected over north central South Dakota this afternoon
into tonight. Over northeast South Dakota and west central Minnesota
sustained winds in excess of 30 mph, gusting in excess of 50 mph,
are expected from early this evening through the overnight hours.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday.

If falling snow happens across far northeast South Dakota Tuesday
night into early Wednesday morning while these strong winds are
happening, considerable blowing snow and reduction to visibility
could be possible.

.SPOTTER INFORMATION STATEMENT...

Spotters are encouraged to report any freezing rain or strong
winds they observe today.

$$

Hazardous Weather Outlook
National Weather Service Aberdeen SD
514 AM CST Tue Dec 9 2025

SDZ033-045-048-101115-
Stanley-Jones-Lyman-
514 AM CST Tue Dec 9 2025 /414 AM MST Tue Dec 9 2025/

This Hazardous Weather Outlook is for central South Dakota.

.DAY ONE...Today and tonight.

Very High Grassland Fire Danger is forecast this afternoon, given
the very strong northwest winds in excess of 40 mph with gusts in
excess of 60 mph that are expected. These strong winds should persist
into tonight before diminishing late.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday.

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotters are encouraged to report any strong winds they observe
today.

$$

Hazardous Weather Outlook
National Weather Service Aberdeen SD
514 AM CST Tue Dec 9 2025

SDZ034>037-051-101115-
Sully-Hughes-Hyde-Hand-Buffalo-
514 AM CST Tue Dec 9 2025

This Hazardous Weather Outlook is for central South Dakota.

.DAY ONE...Today and tonight.

A very brief period of light freezing rain or rain is possible this
morning. Otherwise, very strong northwest winds are expected this
afternoon through tonight. Sustained winds in excess of 40 mph,
gusting in excess of 60 mph, are expected over central South Dakota
this afternoon into tonight.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday.

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotters are encouraged to report any strong winds they observe
today.

$$

10

Hazardous Weather Outlook
National Weather Service Riverton WY
248 AM MST Tue Dec 9 2025

WYZ001>020-022>030-101400-
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-
248 AM MST Tue Dec 9 2025

...WINTER STORM WARNINGS REMAIN IN EFFECT FROM 5 PM THIS AFTERNOON
TO 5 PM MST WEDNESDAY...
...HIGH WIND WARNING IN EFFECT THROUGH WEDNESDAY EVENING...

This Hazardous Weather Outlook is for Western and Central Wyoming.

.DAY ONE...Today and tonight.

Moderate to heavy snowfall continues for western mountains. Please
see Winter Weather Products and forecasts for details.

Strong to high wind developing from Kemmerer through Rock Springs
and into Natrona County. Please see High Wind Warnings for
details.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday.

Wednesday and Thursday...Snow likely in the western and northern
mountains. Strong to high wind continuing in southern Wyoming.


.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

$$


Hydrologic Outlook


Hydrologic Outlook
MTC039-063-081-102100-

Hydrologic Outlook
National Weather Service Missoula MT
122 PM MST Mon Dec 8 2025


...NEAR RECORD HEAVY PRECIPITATION TO BRING SMALL STREAM RISES, RISK
FOR ROCK AND LANDSLIDES, AND MINOR FLOODING THIS WEEK...

A prolonged atmospheric river is expected to bring periods of heavy
rain for western Montana Monday night through Thursday. Rising snow
levels will lead to a rain-on-snow event for elevations below 7,000
feet Monday night into Tuesday morning. Precipitation rates will
briefly decrease Tuesday afternoon before a second surge of moisture
arrives Tuesday night into Thursday. During the second surge, snow
levels will be lower initially, ranging from 3,500 to 5,000 feet
with some slushy snow accumulations across northwest Montana
valleys, but will then rise to 6,000 to 8,000 feet Wednesday into
Thursday. By Thursday, significant precipitation totals are
forecast, with 1 to 4 inches in the valleys and 5 to 8 inches in the
mountains, with locally higher totals over mountain crests.

Landslides in areas of steep terrain and minor flooding in urban and
poor-drainage areas are possible. Storm drains and ditches may
become clogged with debris. You may want to preemptively shovel snow
away from your homes. Watch basements for moisture intrusion.
$$

U.S. Dept. of Commerce
NOAA National Weather Service
1325 East West Highway
Silver Spring, MD 20910
E-mail: w-nws.webmaster@noaa.gov
Page last modified: June 2, 2009
NATIONAL WEATHER SERVICE: for Safety, for Work, for Fun - FOR LIFE