Winter Storm Warning
URGENT - WINTER WEATHER MESSAGE
National Weather Service Riverton WY
337 AM MST Wed Dec 10 2025
WYZ001-002-110000-
/O.CON.KRIW.WS.W.0013.000000T0000Z-251211T0000Z/
Yellowstone National Park-Absaroka Mountains-
Including the cities of Lake, Mammoth, and Old Faithful
337 AM MST Wed Dec 10 2025
...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST THIS
AFTERNOON...
* WHAT...Heavy snow. Additional snow accumulations up to 6 inches.
Winds gusting as high as 65 mph.
* WHERE...Absaroka Mountains and Yellowstone National Park.
* WHEN...Until 5 PM MST this afternoon.
* 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 .
&&
$$
URGENT - WINTER WEATHER MESSAGE
National Weather Service Billings MT
142 AM MST Wed Dec 10 2025
MTZ067-110000-
/O.CON.KBYZ.WS.W.0018.000000T0000Z-251211T0000Z/
Absaroka/Beartooth Mountains-
Including the locations of Cooke City
142 AM MST Wed Dec 10 2025
...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST THIS
AFTERNOON...
* WHAT...Periods of heavy snow. Additional snow accumulations of 5 to
10 inches, greatest on west aspects. Winds gusting as high as 55
mph.
* WHERE...Absaroka/Beartooth Mountains.
* WHEN...Until 5 PM MST this afternoon.
* IMPACTS...Recreation in the high country will be impacted by heavy
accumulating snow and significant blowing snow. Whiteout conditions
are possible over the highest elevations. Avalanche danger will
increase.
* ADDITIONAL DETAILS...Additional periods of snow possible Thursday
into Friday.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Outdoor activities in the mountains will be impacted by harsh winter
conditions, so be prepared.
&&
$$
High Wind Warning
URGENT - WEATHER MESSAGE
National Weather Service Great Falls MT
732 AM MST Wed Dec 10 2025
MTZ302-308-110300-
/O.EXT.KTFX.HW.W.0030.251210T1432Z-251211T0300Z/
Northern High Plains-Southern High Plains-
Including the following locations: Pendroy, Choteau, Heart Butte,
Dupuyer, Browning, and Bynum
732 AM MST Wed Dec 10 2025
...HIGH WIND WARNING NOW IN EFFECT UNTIL 8 PM MST THIS EVENING...
* WHAT...West winds 45 to 55 mph, with gusts up to 90 mph expected.
* WHERE...The foothills and plains adjacent to the Rocky Mountain
Front.
* WHEN...Until 8 PM MST this evening.
* IMPACTS...Travel could be difficult, especially for high profile
vehicles.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
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.
&&
$$
URGENT - WEATHER MESSAGE
National Weather Service Great Falls MT
732 AM MST Wed Dec 10 2025
MTZ303-110300-
/O.CON.KTFX.HW.W.0030.251210T1500Z-251211T0300Z/
Eastern Glacier, Western Toole, and Central Pondera-
Including the following locations: Cut Bank, Santa Rita, and
Ethridge
732 AM MST Wed Dec 10 2025
...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 8 PM MST THIS EVENING...
* WHAT...West winds 35 to 45 mph, with gusts up to 80 mph expected.
* WHERE...Eastern Glacier, Western Toole, and Central Pondera
Counties.
* WHEN...Until 8 PM MST this evening.
* IMPACTS...Travel could be difficult, especially for high profile
vehicles.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Remember, a High Wind Warning means that there is at least an 80%
chance of 40 mph sustained winds or 58 mph wind gusts occurring
during the warning period.
&&
$$
URGENT - WEATHER MESSAGE
National Weather Service Great Falls MT
732 AM MST Wed Dec 10 2025
MTZ313-110545-
/O.CON.KTFX.HW.W.0030.251210T1500Z-251211T2200Z/
Judith Basin County and Judith Gap-
Including the following locations: Benchland, Raynesford, Hobson,
Stanford, Moccasin, Geyser, and Windham
732 AM MST Wed Dec 10 2025
...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 3 PM MST THURSDAY...
* WHAT...West winds 30 to 40 mph with gusts up to 60 mph expected.
* WHERE...Judith Basin County and Judith Gap.
* WHEN...Until 3 PM MST Thursday.
* IMPACTS...Travel could be difficult, especially for high profile
vehicles.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
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.
&&
$$
URGENT - WEATHER MESSAGE
National Weather Service Great Falls MT
732 AM MST Wed Dec 10 2025
MTZ315-110300-
/O.CON.KTFX.HW.W.0030.251210T1500Z-251211T0300Z/
Upper Blackfoot and MacDonald Pass-
Including the following locations: Marysville, Lincoln, MacDonald
Pass, and Flesher Pass
732 AM MST Wed Dec 10 2025
...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 8 PM MST THIS EVENING...
* WHAT...West winds 35 to 45 mph, with gusts up to 65 mph expected.
* WHERE...Upper Blackfoot and MacDonald Pass.
* WHEN...Until 8 PM MST this evening.
* IMPACTS...Travel could be difficult, especially for high profile
vehicles.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Remember, a High Wind Warning means that there is at least an 80%
chance of 40 mph sustained winds or 58 mph wind gusts occurring
during the warning period.
&&
$$
Moldan
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.
&&
$$
Avalanche Warning
MTZ001-111500-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
BACKCOUNTRY AVALANCHE WARNING
Idaho Panhandle Avalanche Center Sandpoint ID
Relayed by National Weather Service Missoula MT
844 AM MST Wed Dec 10 2025
The following message is transmitted at the request of Idaho Panhandle
Avalanche Center Sandpoint ID.
...AVALANCHE WARNING ISSUED BY THE IDAHO PANHANDLE AVALANCHE CENTER...
07:00 PST Wed Dec 10 2025 The Idaho Panhandle Avalanche Center in
Sandpoint has issued a BACKCOUNTRY AVALANCHE WARNING for the
following areas:
NWS Missoula MT -
MTZ001 (MTZ001)
NWS Spokane WA -
ID 017 (Bonner County)...ID 021 (Boundary County)
* WHAT...An Avalanche Warning is in effect from Wednesday 7 AM to
Thursday 7 AM. Very dangerous avalanche conditions will reemerge
from another round of heavy rain and strong winds - this time
climbing up to 8,000 feet. It will be very easy to trigger
avalanches large enough to bury or kill you, and many will
release spontaneously. Avoid travel in avalanche terrain during
this period.
* WHERE...The Selkirk Mountains, and West and East Cabinet
Mountains above 4,000 feet.
* WHEN...In effect from Wed 07:00 PST to Thu 07:00 PST.
* IMPACTS...The next potent atmospheric river will deliver copious
amounts of rain to an already stressed snowpack across the
mountains of North Idaho and Northwestern Montana. The rain line
will spike to around 8,000 feet on Wednesday and quickly
overload buried weak snow layers. It will be very likely for
backcountry travelers to trigger dangerous avalanches and
natural avalanches are likely. Avalanches will break wide across
terrain features and run long distances to lower elevation
slopes.
* PRECAUTIONARY / PREPAREDNESS ACTIONS...Travel in, near, or below
avalanche terrain is not recommended during this period.
Consult http://www.idahopanhandleavalanche.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.
$$
MTZ067-111200-
Urgent - Immediate Broadcast Requested
Avalanche Warning
Gallatin National Forest Avalanche Center
Relayed by National Weather Service Billings MT
537 AM MST Wed Dec 10 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.
$$
Winter Weather Advisory
URGENT - WINTER WEATHER MESSAGE
National Weather Service Great Falls MT
730 AM MST Wed Dec 10 2025
MTZ301-307-110530-
/O.CON.KTFX.WW.Y.0054.000000T0000Z-251210T1800Z/
/O.CON.KTFX.WS.A.0019.251211T2100Z-251213T1200Z/
East Glacier Park Region-Southern Rocky Mountain Front-
Including the following locations: Babb, Kiowa, Logan Pass,
Marias Pass, Rogers Pass, Saint Mary, and East Glacier Park
730 AM MST Wed Dec 10 2025
...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST THIS
MORNING...
...WINTER STORM WATCH REMAINS IN EFFECT FROM THURSDAY AFTERNOON
THROUGH LATE FRIDAY NIGHT...
* WHAT...For the Winter Weather Advisory, snow and freezing rain
expected. Total snow accumulations between 2 to 4 inches on Marias
Pass, and up to 7 inches at ridge tops. Light ice accumulations.
For the winter storm watch, heavy snow possible. Total snow
accumulations between 7 and 12 inches possible along Marias Pass,
with over a foot of snow at the higher peaks.
* WHERE...The Continental Divide along the Rocky Mountain Front.
* WHEN...For the Winter Weather Advisory, until 11 AM MST this
morning. For the Winter Storm Watch, from Thursday afternoon
through late Friday night.
* IMPACTS...Travel could be very difficult and tire chains may be
required for some vehicles. Those in the backcountry should ensure
they are prepared for dangerous conditions. Roads, and especially
bridges and overpasses, will likely become slick and hazardous.
* ADDITIONAL DETAILS...Temperatures rapidly dropping behind the
arctic front Thursday afternoon will cause a flash freeze on
roadways and bridges. The heaviest period of snow will be on
Friday.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Slow down and use caution while traveling. The latest road
conditions can be obtained by calling 5 1 1 or visiting the MDT Road
Report website.
&&
$$
URGENT - WINTER WEATHER MESSAGE
National Weather Service Great Falls MT
730 AM MST Wed Dec 10 2025
MTZ304>306-311-110530-
/O.CON.KTFX.WW.Y.0054.000000T0000Z-251210T1800Z/
/O.CON.KTFX.WS.A.0019.251211T1800Z-251213T1200Z/
Eastern Toole and Liberty-Hill County-Northern Blaine County-
Bears Paw Mountains and Southern Blaine-
Including the following locations: Galata, Lothair, Whitlash,
Zurich, Shelby, Devon, Chinook, Hogeland, Havre, Joplin, Harlem,
Fort Belknap, Chester, and Rocky Boy
730 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 MORNING
THROUGH LATE FRIDAY NIGHT...
* WHAT...For the Winter Weather Advisory, wet snow and freezing
rain. Additional snow accumulations up to one inch, with a light
glaze of ice. For the Winter Storm Watch, heavy snow possible.
Total snow accumulations between 5 and 12 inches possible. Winds
could gust as high as 35 mph.
* WHERE...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.
* ADDITIONAL DETAILS...Temperatures rapidly dropping behind the
arctic front Thursday afternoon will cause a flash freeze on
roadways and bridges. The heaviest period of snow will be on
Friday.
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
730 AM MST Wed Dec 10 2025
MTZ310-313-314-317-318-110530-
/O.CON.KTFX.WW.Y.0054.000000T0000Z-251210T1800Z/
/O.CON.KTFX.WS.A.0019.251211T2100Z-251213T1200Z/
Western and Central Chouteau County-Judith Basin County and
Judith Gap-Fergus County below 4500ft-Little Belt and Highwood
Mountains-Snowy and Judith Mountains-
Including the following locations: Benchland, Neihart,
Raynesford, Fort Benton, Hobson, Lewistown, Stanford, Monarch,
Moccasin, Floweree, Hilger, Carter, Geyser, Windham, and Kings
Hill Pass
730 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, wet snow and freezing
rain. Additional snow accumulations up to one inch, with a light
glaze of ice. For the Winter Storm Watch, heavy snow possible.
Total snow accumulations between 5 and 12 inches possible. Winds
could gust as high as 35 mph.
* WHERE...The Highwood, Little Belt, Judith, and Snowy Mountains,
Western and Central Chouteau County, Judith Basin County and
Judith Gap, and Fergus County below 4500ft.
* 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.
* ADDITIONAL DETAILS...Temperatures rapidly dropping behind the
arctic front Thursday afternoon will cause a flash freeze on
roadways and bridges. The heaviest period of snow will be on
Friday.
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
730 AM MST Wed Dec 10 2025
MTZ315-319-101800-
/O.CON.KTFX.WW.Y.0054.000000T0000Z-251210T1800Z/
Upper Blackfoot and MacDonald Pass-Helena Valley-
Including the following locations: MacDonald Pass, Helena,
Lincoln, Marysville, and Flesher Pass
730 AM MST Wed Dec 10 2025
...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST THIS
MORNING...
* WHAT...Wet snow and freezing rain. Additional snow accumulations
up to one inch, with a light glaze of ice.
* WHERE...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.
&&
$$
Moldan
URGENT - WINTER WEATHER MESSAGE
National Weather Service Glasgow MT
356 AM MST Wed Dec 10 2025
MTZ016-017-021>023-025-026-059-060-102300-
/O.CON.KGGW.WW.Y.0019.251210T1100Z-251212T0300Z/
/O.CON.KGGW.WS.A.0004.251212T0300Z-251213T1800Z/
Central and Southeast Phillips-Central and Southern Valley-
Petroleum-Garfield-McCone-Dawson-Prairie-Northern Phillips-
Southwest Phillips-
Including Richey, Zortman, Circle, Terry, Glasgow, Glendive,
Whitewater, Saco, Jordan, Fort Peck, Hinsdale, Malta, Winnett,
and Frazer
356 AM MST Wed Dec 10 2025
...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 8 PM MST
THURSDAY...
...WINTER STORM WATCH REMAINS IN EFFECT FROM THURSDAY EVENING
THROUGH SATURDAY MORNING...
* WHAT...For the Winter Weather Advisory, mixed precipitation
expected. Total snow accumulations up to 3 inches and ice
accumulations up to one tenth of an inch. For the Winter Storm
Watch, heavy snow possible. Total snow accumulations between 6 and
11 inches possible.
* WHERE...A portion of northeast Montana.
* WHEN...For the Winter Weather Advisory, until 8 PM MST Thursday.
For the Winter Storm Watch, from Thursday evening through Saturday
morning.
* 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 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.
Monitor the latest forecasts for updates on this situation.
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.
&&
$$
URGENT - WINTER WEATHER MESSAGE
National Weather Service Riverton WY
337 AM MST Wed Dec 10 2025
WYZ008-110000-
/O.CON.KRIW.WW.Y.0036.000000T0000Z-251211T0000Z/
Bighorn Mountains West-
337 AM MST Wed Dec 10 2025
...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST THIS
AFTERNOON...
* WHAT...Snow. Additional snow accumulations up to 6 inches. Winds
gusting as high as 50 mph.
* WHERE...Bighorn Mountains West.
* WHEN...Until 5 PM MST this afternoon.
* 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 .
&&
$$
URGENT - WINTER WEATHER MESSAGE
National Weather Service Billings MT
142 AM MST Wed Dec 10 2025
MTZ029-034-042-063-141-172-173-228-235-110845-
/O.CON.KBYZ.WW.Y.0040.251210T1200Z-251210T1800Z/
/O.CON.KBYZ.WS.A.0018.251211T2100Z-251213T1800Z/
Musselshell-Northern Stillwater-Golden Valley-Judith Gap-Northern
Sweet Grass-Melville Foothills-Northeastern Yellowstone-Southern
Wheatland-Southwestern Yellowstone-
Including the locations of Musselshell, Ryegate, Columbus, Melstone,
Rapelje, Judith Gap, Reed Point, Pompeys Pillar, Absarokee, Park
City, Harlowton, Broadview, Lavina, Twodot, Custer, Laurel, Shawmut,
Billings, Roundup, Huntley, Big Timber, and Melville
142 AM MST Wed Dec 10 2025
...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 5 AM TO 11 AM MST
THIS MORNING...
...WINTER STORM WATCH REMAINS IN EFFECT FROM THURSDAY AFTERNOON
THROUGH SATURDAY MORNING...
* WHAT...For the Winter Weather Advisory, mixed precipitation
expected today. Total snow accumulations less than 1 inch. A light
glaze of ice is possible with freezing rain. For the Winter Storm
Watch, heavy snow possible late Thursday into Saturday. Total snow
accumulations between 4 and 9 inches possible.
* WHERE...Portions of central and south central Montana.
* WHEN...For the Winter Weather Advisory, from 5 AM to 11 AM MST this
morning. For the Winter Storm Watch, from Thursday afternoon
through Saturday morning.
* IMPACTS...Impacts to travel are possible. For the Winter Weather
Advisory, roads may become slick and hazardous due to mixed
precipitation, including freezing rain. For the Winter Storm Watch,
roads may become slick and hazardous due to accumulating snowfall.
* ADDITIONAL DETAILS...Rapidly falling temperatures combined with
accumulating snow may result in a flash freeze on roadways late
Thursday afternoon and evening. Travel may become treacherous.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Monitor the latest forecasts for updates on this situation.
&&
$$
URGENT - WINTER WEATHER MESSAGE
National Weather Service Billings MT
142 AM MST Wed Dec 10 2025
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.
&&
$$
URGENT - WINTER WEATHER MESSAGE
National Weather Service Billings MT
142 AM MST Wed Dec 10 2025
MTZ030>032-036-057-058-138-110845-
/O.CON.KBYZ.WW.Y.0040.251210T1500Z-251211T0000Z/
/O.CON.KBYZ.WS.A.0018.251211T2100Z-251213T1800Z/
Treasure-Northern Rosebud-Custer-Powder River-Northern Big Horn-
Southern Rosebud-Southern Big Horn-
Including the locations of Lame Deer, Biddle, Miles City,
Powderville, Ismay, Wyola, Bighorn, Sonnette, Broadus, Colstrip,
Angela, Birney, Lodge Grass, Hardin, Ashland, Forsyth, Crow Agency,
Hysham, Ingomar, Volborg, Busby, and Pryor
142 AM MST Wed Dec 10 2025
...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 8 AM THIS MORNING
TO 5 PM MST THIS AFTERNOON...
...WINTER STORM WATCH REMAINS IN EFFECT FROM THURSDAY AFTERNOON
THROUGH SATURDAY MORNING...
* WHAT...For the Winter Weather Advisory, mixed precipitation
expected today. Total snow accumulations less than 1 inch. A light
glaze of ice is possible with freezing rain. For the Winter Storm
Watch, heavy snow possible late Thursday into Saturday. Total snow
accumulations between 5 and 10 inches possible.
* WHERE...Portions of south central and southeast Montana.
* WHEN...For the Winter Weather Advisory, from 8 AM this morning to 5
PM MST this afternoon. For the Winter Storm Watch, from Thursday
afternoon through Saturday morning.
* IMPACTS...Impacts to travel are possible. For the Winter Weather
Advisory, roads may become slick and hazardous due to mixed
precipitation, including freezing rain. For the Winter Storm Watch,
roads may become slick and hazardous due to accumulating snowfall.
* ADDITIONAL DETAILS...Rapidly falling temperatures combined with
accumulating snow may result in a flash freeze on roadways late
Thursday afternoon and evening. Travel may become treacherous.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Monitor the latest forecasts for updates on this situation.
&&
$$
URGENT - WINTER WEATHER MESSAGE
National Weather Service Billings MT
142 AM MST Wed Dec 10 2025
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.
&&
$$
URGENT - WINTER WEATHER MESSAGE
National Weather Service Missoula MT
1242 AM MST Tue Dec 9 2025
MTZ002-043-101800-
/O.NEW.KMSO.WW.Y.0047.251210T0700Z-251210T1800Z/
West Glacier Region-Potomac/Seeley Lake Region-
1242 AM MST Tue Dec 9 2025
...WINTER WEATHER ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO 11 AM
MST WEDNESDAY...
* WHAT...Snow expected. There is a likelihood of moderate winter
weather impacts. Total snow accumulations of 2 to 5 inches.
* WHERE...Marias Pass, Highway 83 Bigfork to Swan Lake, Highway 83
Seeley Lake to Condon, Glacier National Park, Highway 200 Bonner
to Greenough, Polebridge, Essex, I-90 East Missoula to Bearmouth,
and Bad Rock Canyon.
* WHEN...From midnight tonight to 11 AM MST Wednesday.
* IMPACTS...For MODERATE winter weather impacts, expect disruptions
to normal activities. Difficult traveling conditions. Use extra
caution while driving. The difficult conditions could impact the
Wednesday morning commute, especially over higher passes.
* ADDITIONAL DETAILS...Snowfall rates of 1 inch per hour will be
possible between 4am and 7am
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Slow down and use caution while traveling. The latest road
conditions for the state you are calling from can be obtained by
calling 5 1 1.
&&
$$
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.
&&
$$
Winter Storm Watch
URGENT - WINTER WEATHER MESSAGE
National Weather Service Great Falls MT
730 AM MST Wed Dec 10 2025
MTZ301-307-110530-
/O.CON.KTFX.WW.Y.0054.000000T0000Z-251210T1800Z/
/O.CON.KTFX.WS.A.0019.251211T2100Z-251213T1200Z/
East Glacier Park Region-Southern Rocky Mountain Front-
Including the following locations: Babb, Kiowa, Logan Pass,
Marias Pass, Rogers Pass, Saint Mary, and East Glacier Park
730 AM MST Wed Dec 10 2025
...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST THIS
MORNING...
...WINTER STORM WATCH REMAINS IN EFFECT FROM THURSDAY AFTERNOON
THROUGH LATE FRIDAY NIGHT...
* WHAT...For the Winter Weather Advisory, snow and freezing rain
expected. Total snow accumulations between 2 to 4 inches on Marias
Pass, and up to 7 inches at ridge tops. Light ice accumulations.
For the winter storm watch, heavy snow possible. Total snow
accumulations between 7 and 12 inches possible along Marias Pass,
with over a foot of snow at the higher peaks.
* WHERE...The Continental Divide along the Rocky Mountain Front.
* WHEN...For the Winter Weather Advisory, until 11 AM MST this
morning. For the Winter Storm Watch, from Thursday afternoon
through late Friday night.
* IMPACTS...Travel could be very difficult and tire chains may be
required for some vehicles. Those in the backcountry should ensure
they are prepared for dangerous conditions. Roads, and especially
bridges and overpasses, will likely become slick and hazardous.
* ADDITIONAL DETAILS...Temperatures rapidly dropping behind the
arctic front Thursday afternoon will cause a flash freeze on
roadways and bridges. The heaviest period of snow will be on
Friday.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Slow down and use caution while traveling. The latest road
conditions can be obtained by calling 5 1 1 or visiting the MDT Road
Report website.
&&
$$
URGENT - WINTER WEATHER MESSAGE
National Weather Service Great Falls MT
730 AM MST Wed Dec 10 2025
MTZ302-308-309-312-110530-
/O.CAN.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-Cascade County below 5000ft-
Including the following locations: Pendroy, Brady, Conrad,
Choteau, Ledger, Great Falls, Heart Butte, Dupuyer, Browning, and
Bynum
730 AM MST Wed Dec 10 2025
...WINTER STORM WATCH REMAINS IN EFFECT FROM THURSDAY AFTERNOON
THROUGH LATE FRIDAY NIGHT...
...WINTER WEATHER ADVISORY IS CANCELLED...
* WHAT...Heavy snow possible. Total snow accumulations between 5 and
12 inches possible. Winds could gust as high as 35 mph.
* WHERE...The foothills and plains adjacent to the Rocky Mountain
Front, Eastern Pondera and Eastern Teton Counties, and Cascade
County below 5000ft.
* WHEN...From Thursday afternoon through late Friday night.
* IMPACTS...Travel could be very difficult. The hazardous conditions
could impact the Thursday evening commutes.
* ADDITIONAL DETAILS...Temperatures rapidly dropping behind the
arctic front Thursday afternoon will cause a flash freeze on
roadways and bridges. The heaviest period of snow will be on
Friday.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Remember, a Winter Storm Watch means that there is at least a 50%
chance of impactful winter weather conditions during the watch
period.
&&
$$
URGENT - WINTER WEATHER MESSAGE
National Weather Service Great Falls MT
730 AM MST Wed Dec 10 2025
MTZ303-110530-
/O.CAN.KTFX.WW.Y.0054.000000T0000Z-251210T1800Z/
/O.CON.KTFX.WS.A.0019.251211T1800Z-251213T1200Z/
Eastern Glacier, Western Toole, and Central Pondera-
Including the following locations: Cut Bank, Santa Rita, and
Ethridge
730 AM MST Wed Dec 10 2025
...WINTER STORM WATCH REMAINS IN EFFECT FROM THURSDAY MORNING
THROUGH LATE FRIDAY NIGHT...
...WINTER WEATHER ADVISORY IS CANCELLED...
* WHAT...Heavy snow possible. Total snow accumulations between 5 and
12 inches possible. Winds could gust as high as 35 mph.
* WHERE...Eastern Glacier, Western Toole, and Central Pondera
Counties.
* WHEN...From Thursday morning through late Friday night.
* IMPACTS...Travel could be very difficult. The hazardous conditions
could impact the Thursday evening commutes.
* ADDITIONAL DETAILS...Temperatures rapidly dropping behind the
arctic front Thursday afternoon will cause a flash freeze on
roadways and bridges. The heaviest period of snow will be on
Friday.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Remember, a Winter Storm Watch means that there is at least a 50%
chance of impactful winter weather conditions during the watch
period.
&&
$$
URGENT - WINTER WEATHER MESSAGE
National Weather Service Great Falls MT
730 AM MST Wed Dec 10 2025
MTZ304>306-311-110530-
/O.CON.KTFX.WW.Y.0054.000000T0000Z-251210T1800Z/
/O.CON.KTFX.WS.A.0019.251211T1800Z-251213T1200Z/
Eastern Toole and Liberty-Hill County-Northern Blaine County-
Bears Paw Mountains and Southern Blaine-
Including the following locations: Galata, Lothair, Whitlash,
Zurich, Shelby, Devon, Chinook, Hogeland, Havre, Joplin, Harlem,
Fort Belknap, Chester, and Rocky Boy
730 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 MORNING
THROUGH LATE FRIDAY NIGHT...
* WHAT...For the Winter Weather Advisory, wet snow and freezing
rain. Additional snow accumulations up to one inch, with a light
glaze of ice. For the Winter Storm Watch, heavy snow possible.
Total snow accumulations between 5 and 12 inches possible. Winds
could gust as high as 35 mph.
* WHERE...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.
* ADDITIONAL DETAILS...Temperatures rapidly dropping behind the
arctic front Thursday afternoon will cause a flash freeze on
roadways and bridges. The heaviest period of snow will be on
Friday.
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
730 AM MST Wed Dec 10 2025
MTZ310-313-314-317-318-110530-
/O.CON.KTFX.WW.Y.0054.000000T0000Z-251210T1800Z/
/O.CON.KTFX.WS.A.0019.251211T2100Z-251213T1200Z/
Western and Central Chouteau County-Judith Basin County and
Judith Gap-Fergus County below 4500ft-Little Belt and Highwood
Mountains-Snowy and Judith Mountains-
Including the following locations: Benchland, Neihart,
Raynesford, Fort Benton, Hobson, Lewistown, Stanford, Monarch,
Moccasin, Floweree, Hilger, Carter, Geyser, Windham, and Kings
Hill Pass
730 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, wet snow and freezing
rain. Additional snow accumulations up to one inch, with a light
glaze of ice. For the Winter Storm Watch, heavy snow possible.
Total snow accumulations between 5 and 12 inches possible. Winds
could gust as high as 35 mph.
* WHERE...The Highwood, Little Belt, Judith, and Snowy Mountains,
Western and Central Chouteau County, Judith Basin County and
Judith Gap, and Fergus County below 4500ft.
* 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.
* ADDITIONAL DETAILS...Temperatures rapidly dropping behind the
arctic front Thursday afternoon will cause a flash freeze on
roadways and bridges. The heaviest period of snow will be on
Friday.
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 Glasgow MT
356 AM MST Wed Dec 10 2025
MTZ016-017-021>023-025-026-059-060-102300-
/O.CON.KGGW.WW.Y.0019.251210T1100Z-251212T0300Z/
/O.CON.KGGW.WS.A.0004.251212T0300Z-251213T1800Z/
Central and Southeast Phillips-Central and Southern Valley-
Petroleum-Garfield-McCone-Dawson-Prairie-Northern Phillips-
Southwest Phillips-
Including Richey, Zortman, Circle, Terry, Glasgow, Glendive,
Whitewater, Saco, Jordan, Fort Peck, Hinsdale, Malta, Winnett,
and Frazer
356 AM MST Wed Dec 10 2025
...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 8 PM MST
THURSDAY...
...WINTER STORM WATCH REMAINS IN EFFECT FROM THURSDAY EVENING
THROUGH SATURDAY MORNING...
* WHAT...For the Winter Weather Advisory, mixed precipitation
expected. Total snow accumulations up to 3 inches and ice
accumulations up to one tenth of an inch. For the Winter Storm
Watch, heavy snow possible. Total snow accumulations between 6 and
11 inches possible.
* WHERE...A portion of northeast Montana.
* WHEN...For the Winter Weather Advisory, until 8 PM MST Thursday.
For the Winter Storm Watch, from Thursday evening through Saturday
morning.
* 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 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.
Monitor the latest forecasts for updates on this situation.
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.
&&
$$
URGENT - WINTER WEATHER MESSAGE
National Weather Service Billings MT
142 AM MST Wed Dec 10 2025
MTZ029-034-042-063-141-172-173-228-235-110845-
/O.CON.KBYZ.WW.Y.0040.251210T1200Z-251210T1800Z/
/O.CON.KBYZ.WS.A.0018.251211T2100Z-251213T1800Z/
Musselshell-Northern Stillwater-Golden Valley-Judith Gap-Northern
Sweet Grass-Melville Foothills-Northeastern Yellowstone-Southern
Wheatland-Southwestern Yellowstone-
Including the locations of Musselshell, Ryegate, Columbus, Melstone,
Rapelje, Judith Gap, Reed Point, Pompeys Pillar, Absarokee, Park
City, Harlowton, Broadview, Lavina, Twodot, Custer, Laurel, Shawmut,
Billings, Roundup, Huntley, Big Timber, and Melville
142 AM MST Wed Dec 10 2025
...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 5 AM TO 11 AM MST
THIS MORNING...
...WINTER STORM WATCH REMAINS IN EFFECT FROM THURSDAY AFTERNOON
THROUGH SATURDAY MORNING...
* WHAT...For the Winter Weather Advisory, mixed precipitation
expected today. Total snow accumulations less than 1 inch. A light
glaze of ice is possible with freezing rain. For the Winter Storm
Watch, heavy snow possible late Thursday into Saturday. Total snow
accumulations between 4 and 9 inches possible.
* WHERE...Portions of central and south central Montana.
* WHEN...For the Winter Weather Advisory, from 5 AM to 11 AM MST this
morning. For the Winter Storm Watch, from Thursday afternoon
through Saturday morning.
* IMPACTS...Impacts to travel are possible. For the Winter Weather
Advisory, roads may become slick and hazardous due to mixed
precipitation, including freezing rain. For the Winter Storm Watch,
roads may become slick and hazardous due to accumulating snowfall.
* ADDITIONAL DETAILS...Rapidly falling temperatures combined with
accumulating snow may result in a flash freeze on roadways late
Thursday afternoon and evening. Travel may become treacherous.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Monitor the latest forecasts for updates on this situation.
&&
$$
URGENT - WINTER WEATHER MESSAGE
National Weather Service Billings MT
142 AM MST Wed Dec 10 2025
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.
&&
$$
Additional graphics for this hazard can be found at
http://www.weather.gov/billings
Lester
URGENT - WINTER WEATHER MESSAGE
National Weather Service Billings MT
142 AM MST Wed Dec 10 2025
MTZ030>032-036-057-058-138-110845-
/O.CON.KBYZ.WW.Y.0040.251210T1500Z-251211T0000Z/
/O.CON.KBYZ.WS.A.0018.251211T2100Z-251213T1800Z/
Treasure-Northern Rosebud-Custer-Powder River-Northern Big Horn-
Southern Rosebud-Southern Big Horn-
Including the locations of Lame Deer, Biddle, Miles City,
Powderville, Ismay, Wyola, Bighorn, Sonnette, Broadus, Colstrip,
Angela, Birney, Lodge Grass, Hardin, Ashland, Forsyth, Crow Agency,
Hysham, Ingomar, Volborg, Busby, and Pryor
142 AM MST Wed Dec 10 2025
...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 8 AM THIS MORNING
TO 5 PM MST THIS AFTERNOON...
...WINTER STORM WATCH REMAINS IN EFFECT FROM THURSDAY AFTERNOON
THROUGH SATURDAY MORNING...
* WHAT...For the Winter Weather Advisory, mixed precipitation
expected today. Total snow accumulations less than 1 inch. A light
glaze of ice is possible with freezing rain. For the Winter Storm
Watch, heavy snow possible late Thursday into Saturday. Total snow
accumulations between 5 and 10 inches possible.
* WHERE...Portions of south central and southeast Montana.
* WHEN...For the Winter Weather Advisory, from 8 AM this morning to 5
PM MST this afternoon. For the Winter Storm Watch, from Thursday
afternoon through Saturday morning.
* IMPACTS...Impacts to travel are possible. For the Winter Weather
Advisory, roads may become slick and hazardous due to mixed
precipitation, including freezing rain. For the Winter Storm Watch,
roads may become slick and hazardous due to accumulating snowfall.
* ADDITIONAL DETAILS...Rapidly falling temperatures combined with
accumulating snow may result in a flash freeze on roadways late
Thursday afternoon and evening. Travel may become treacherous.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Monitor the latest forecasts for updates on this situation.
&&
$$
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.
&&
$$
Hazardous Weather Outlook
Hazardous Weather Outlook
National Weather Service Riverton WY
319 AM MST Wed Dec 10 2025
WYZ001>020-022>030-111430-
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-
319 AM MST Wed Dec 10 2025
...WINTER STORM WARNING AND WINTER WEATHER ADVISORY REMAINS IN
EFFECT UNTIL 5 PM MST WEDNESDAY...
...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 5 AM MST THURSDAY...
This Hazardous Weather Outlook is for Western and Central Wyoming.
.DAY ONE...Today and tonight.
Moderate snowfall continues for western mountains. Please see Winter
Weather Products and forecasts for details.
Strong to high wind continues from Rock Springs and into Natrona
County. Please see High Wind Warnings for details.
.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.
Thursday...Snow likely for portions of the northern mountains.
Strong to high wind continuing in southern Wyoming.
.SPOTTER INFORMATION STATEMENT...
Weather spotters are encouraged to report significant weather
conditions according to Standard Operating Procedures.
$$
Hydrologic Outlook
Hydrologic Outlook
MTC039-063-081-102100-
Hydrologic Outlook
National Weather Service Missoula MT
122 PM MST Mon Dec 8 2025
...NEAR RECORD HEAVY PRECIPITATION TO BRING SMALL STREAM RISES, RISK
FOR ROCK AND LANDSLIDES, AND MINOR FLOODING THIS WEEK...
A prolonged atmospheric river is expected to bring periods of heavy
rain for western Montana Monday night through Thursday. Rising snow
levels will lead to a rain-on-snow event for elevations below 7,000
feet Monday night into Tuesday morning. Precipitation rates will
briefly decrease Tuesday afternoon before a second surge of moisture
arrives Tuesday night into Thursday. During the second surge, snow
levels will be lower initially, ranging from 3,500 to 5,000 feet
with some slushy snow accumulations across northwest Montana
valleys, but will then rise to 6,000 to 8,000 feet Wednesday into
Thursday. By Thursday, significant precipitation totals are
forecast, with 1 to 4 inches in the valleys and 5 to 8 inches in the
mountains, with locally higher totals over mountain crests.
Landslides in areas of steep terrain and minor flooding in urban and
poor-drainage areas are possible. Storm drains and ditches may
become clogged with debris. You may want to preemptively shovel snow
away from your homes. Watch basements for moisture intrusion.
$$
