Winter Storm Warning
URGENT - WINTER WEATHER MESSAGE
National Weather Service Riverton WY
435 AM MST Mon Dec 8 2025
WYZ001-002-090245-
/O.CON.KRIW.WS.W.0013.251209T0000Z-251211T0000Z/
Yellowstone National Park-Absaroka Mountains-
Including the cities of Old Faithful, Lake, and Mammoth
435 AM MST Mon Dec 8 2025
...WINTER STORM WARNING REMAINS IN EFFECT FROM 5 PM THIS AFTERNOON
TO 5 PM MST WEDNESDAY...
* WHAT...Heavy snow expected. Total snow accumulations between 10
and 20 inches, with the highest amounts in the western Absarokas
and southwestern Yellowstone Park. Northern Yellowstone Park will
see 6 to 10 inches of snow. Winds gusting as high as 60 mph
across the ridgetops.
* WHERE...Absaroka Mountains and Yellowstone National Park.
* WHEN...From 5 PM this afternoon to 5 PM MST Wednesday.
* IMPACTS...Travel could be very difficult.
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 .
&&
$$
URGENT - WINTER WEATHER MESSAGE
National Weather Service Billings MT
1251 AM MST Mon Dec 8 2025
MTZ067-090800-
/O.UPG.KBYZ.WS.A.0017.251209T0000Z-251211T0000Z/
/O.NEW.KBYZ.WS.W.0018.251209T0000Z-251211T0000Z/
Absaroka/Beartooth Mountains-
Including the locations of Cooke City
1251 AM MST Mon Dec 8 2025
...WINTER STORM WARNING IN EFFECT FROM 5 PM THIS AFTERNOON TO 5 PM
MST WEDNESDAY...
* WHAT...Periods of heavy snow. Total snow accumulations between 1
and 2 feet, greatest on west aspects. Winds gusting as high as 70
mph.
* WHERE...Absaroka/Beartooth Mountains.
* WHEN...From 5 PM this afternoon to 5 PM MST Wednesday.
* IMPACTS...Recreation in the high country will be impacted by heavy
accumulating snow and significant blowing snow. Whiteout conditions
are possible over the highest elevations.
* ADDITIONAL DETAILS...Additional periods of heavy snow possible
Thursday and Friday.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Outdoor activities in the mountains will be impacted by harsh winter
conditions, so be prepared.
&&
$$
Additional graphics for this hazard can be found at
http://www.weather.gov/billings
Lester
High Wind Warning
URGENT - WEATHER MESSAGE
National Weather Service Great Falls MT
328 AM MST Mon Dec 8 2025
MTZ301>304-307>309-312-315-316-090000-
/O.UPG.KTFX.HW.A.0028.251208T2100Z-251209T1700Z/
/O.NEW.KTFX.HW.W.0029.251208T2100Z-251209T1700Z/
East Glacier Park Region-Northern High Plains-Eastern Glacier,
Western Toole, and Central Pondera-Eastern Toole and Liberty-
Southern Rocky Mountain Front-Southern High Plains-Eastern
Pondera and Eastern Teton-Cascade County below 5000ft-Upper
Blackfoot and MacDonald Pass-Gates of the Mountains-
Including the following locations: Wolf Creek, Lothair, Saint
Mary, Flesher Pass, East Glacier Park, Great Falls, Browning,
Conrad, Galata, Marysville, Shelby, Brady, Canyon Creek, Marias
Pass, Pendroy, Chester, Craig, Heart Butte, Ethridge, Choteau,
Lincoln, Whitlash, Kiowa, Devon, Rogers Pass, Cut Bank, Joplin,
Ledger, Logan Pass, Bynum, MacDonald Pass, Santa Rita, Dupuyer,
and Babb
328 AM MST Mon Dec 8 2025
...HIGH WIND WARNING IN EFFECT
FROM 2 PM THIS AFTERNOON TO 10 AM MST TUESDAY...
* WHAT...Southwest winds 35 to 45 mph, with gusts up to 70 mph over
the Plains and near 80 mph along the Rocky Mountain Front.
* WHERE...The Rocky Mountain Front and adjacent foothills and
plains, The Interstate 15 Corridor north of Power, Eastern Toole
and Liberty Counties, Cascade County below 5000ft, Upper Blackfoot
and MacDonald Pass, and Gates of the Mountains.
* WHEN...From 2 PM this afternoon to 10 AM MST Tuesday.
* 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.
&&
$$
URGENT - WEATHER MESSAGE
National Weather Service Great Falls MT
328 AM MST Mon Dec 8 2025
MTZ305-306-310-311-314-317-318-320-321-090000-
/O.UPG.KTFX.HW.A.0028.251209T0100Z-251209T1700Z/
/O.NEW.KTFX.HW.W.0029.251209T0100Z-251209T2200Z/
Hill County-Northern Blaine County-Western and Central Chouteau
County-Bears Paw Mountains and Southern Blaine-Fergus County
below 4500ft-Little Belt and Highwood Mountains-Snowy and Judith
Mountains-Big Belt, Bridger and Castle Mountains-Meagher County
Valleys-
Including the following locations: Harlem, Neihart, Fort Belknap,
White Sulphur Springs, Carter, Havre, Monarch, Rocky Boy,
Checkerboard, Bozeman Pass, Maudlow, Martinsdale, Hogeland, Kings
Hill Pass, Fort Benton, Zurich, Floweree, Deep Creek Pass,
Lewistown, Battle Ridge Pass, Ringling, Hilger, Chinook, and
Trident
328 AM MST Mon Dec 8 2025
...HIGH WIND WARNING IN EFFECT
FROM 6 PM THIS EVENING TO 3 PM MST TUESDAY...
* WHAT...West winds 30 to 40 mph, with gusts up to 65 mph expected.
* WHERE...Bears Paw, Highwood, Little Belt, and Snowy Mountains,
Hill County, Northern Blaine County, Western and Central Chouteau
County, Fergus County below 4500ft, Big Belt, Bridger and Castle
Mountains, and Meagher County Valleys.
* WHEN...From 6 PM this evening to 3 PM MST Tuesday.
* IMPACTS...Travel could be difficult, especially for high profile
vehicles.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Remember, a High Wind Warning means that there is at least an 80%
chance of 40 mph sustained winds or 58 mph wind gusts occurring
during the warning period.
&&
$$
Brusda
URGENT - WEATHER MESSAGE
National Weather Service Great Falls MT
328 AM MST Mon Dec 8 2025
MTZ313-090000-
/O.UPG.KTFX.HW.A.0028.251209T0100Z-251209T1700Z/
/O.NEW.KTFX.HW.W.0029.251208T1100Z-251209T2200Z/
Judith Basin County and Judith Gap-
Including the following locations: Stanford, Hobson, Moccasin,
Windham, Benchland, Raynesford, and Geyser
328 AM MST Mon Dec 8 2025
...HIGH WIND WARNING IN EFFECT UNTIL 3 PM MST TUESDAY...
* WHAT...West winds 35 to 45 mph, with gusts up to 75 mph expected.
* WHERE...Judith Basin County and Judith Gap.
* WHEN...Until 3 PM MST Tuesday.
* 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.
&&
$$
URGENT - WEATHER MESSAGE
National Weather Service Great Falls MT
328 AM MST Mon Dec 8 2025
MTZ325-090000-
/O.UPG.KTFX.HW.A.0028.251209T0100Z-251209T1700Z/
/O.NEW.KTFX.HW.W.0029.251208T2100Z-251209T1700Z/
Madison River Valley-
Including the following locations: Cameron, Ennis, Norris,
Jeffers, and McAllister
328 AM MST Mon Dec 8 2025
...HIGH WIND WARNING IN EFFECT
FROM 2 PM THIS AFTERNOON TO 10 AM MST TUESDAY...
* WHAT...South winds 30 to 40 mph with gusts up to 65 mph expected.
* WHERE...Madison River Valley...including Norris Hill on Highway
287.
* WHEN...From 2 PM this afternoon to 10 AM MST Tuesday.
* IMPACTS...Travel could be difficult, especially for high profile
vehicles.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Remember, a High Wind Warning means that there is at least an 80%
chance of 40 mph sustained winds or 58 mph wind gusts occurring
during the warning period.
&&
$$
URGENT - WEATHER MESSAGE
National Weather Service Glasgow MT
156 AM MST Mon Dec 8 2025
MTZ016>027-059>062-082315-
/O.UPG.KGGW.HW.A.0007.251209T0600Z-251210T0000Z/
/O.NEW.KGGW.HW.W.0011.251209T0600Z-251210T0000Z/
Central and Southeast Phillips-Central and Southern Valley-
Daniels-Sheridan-Western Roosevelt-Petroleum-Garfield-McCone-
Richland-Dawson-Prairie-Wibaux-Northern Phillips-Southwest
Phillips-Northern Valley-Eastern Roosevelt-
Including Opheim, Medicine Lake, Terry, Poplar, Glendive, Frazer,
Saco, Glasgow, Malta, Fort Peck, Circle, Plentywood, Fairview,
Whitewater, Zortman, Wolf Point, Scobey, Richey, Jordan, Wibaux,
Sidney, Hinsdale, Culbertson, and Winnett
156 AM MST Mon Dec 8 2025
...HIGH WIND WARNING IN EFFECT FROM 11 PM THIS EVENING TO 5 PM MST
TUESDAY...
* WHAT...West winds 30 to 40 mph with gusts up to 50 to 60 mph
expected.
* WHERE...All of northeast Montana.
* WHEN...From 11 PM this evening to 5 PM MST Tuesday.
* IMPACTS...High winds may move loose debris, damage property, and
cause power bumps. Travel could be difficult, especially for high
profile vehicles.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Remain in the lower levels of your home during the windstorm, and
avoid windows. Watch for falling debris and tree limbs. Use caution
if you must drive.
&&
$$
Maliawco
URGENT - WEATHER MESSAGE
National Weather Service Billings MT
110 AM MST Mon Dec 8 2025
MTZ034-042-090815-
/O.UPG.KBYZ.HW.A.0011.251209T1200Z-251210T0000Z/
/O.NEW.KBYZ.HW.W.0013.251209T1200Z-251210T0000Z/
Northern Stillwater-Golden Valley-
Including the locations of Park City, Ryegate, Reed Point, Rapelje,
Lavina, Columbus, and Absarokee
110 AM MST Mon Dec 8 2025
...HIGH WIND WARNING IN EFFECT FROM 5 AM TO 5 PM MST TUESDAY...
* WHAT...West winds gusting to 65 mph expected.
* WHERE...Golden Valley and Northern Stillwater.
* WHEN...From 5 AM to 5 PM MST Tuesday.
* IMPACTS...Travel will be difficult, especially for high profile
vehicles. Secure loose outdoor objects.
* ADDITIONAL DETAILS...Strongest winds will be during the day
Tuesday.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Winds this strong can make driving difficult, especially for high
profile vehicles.
&&
$$
URGENT - WEATHER MESSAGE
National Weather Service Billings MT
110 AM MST Mon Dec 8 2025
MTZ063-141-172-228-090815-
/O.UPG.KBYZ.HW.A.0011.251209T0600Z-251210T0000Z/
/O.NEW.KBYZ.HW.W.0013.251209T0600Z-251210T0000Z/
Judith Gap-Northern Sweet Grass-Melville Foothills-Southern
Wheatland-
Including the locations of Big Timber, Harlowton, Twodot, Shawmut,
Judith Gap, and Melville
110 AM MST Mon Dec 8 2025
...HIGH WIND WARNING IN EFFECT FROM 11 PM THIS EVENING TO 5 PM MST
TUESDAY...
* WHAT...West winds gusting to 70 mph expected.
* WHERE...Judith Gap, Southern Wheatland, Melville Foothills, and
Northern Sweet Grass.
* WHEN...From 11 PM this evening to 5 PM MST Tuesday.
* IMPACTS...Strong crosswinds will make travel difficult along
Highway 191 from Big Timber through Judith Gap. Secure loose
outdoor objects.
* ADDITIONAL DETAILS...Strongest winds will be Tuesday morning and
early afternoon.
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.
&&
$$
URGENT - WEATHER MESSAGE
National Weather Service Billings MT
110 AM MST Mon Dec 8 2025
MTZ065-066-090815-
/O.UPG.KBYZ.HW.A.0011.251209T0000Z-251209T1800Z/
/O.NEW.KBYZ.HW.W.0013.251209T0000Z-251209T1800Z/
/O.CON.KBYZ.WI.Y.0022.000000T0000Z-251209T0000Z/
Livingston Area-Beartooth Foothills-
Including the locations of Fishtail, McLeod, Springdale, Nye, and
Livingston
110 AM MST Mon Dec 8 2025
...HIGH WIND WARNING IN EFFECT FROM 5 PM THIS AFTERNOON TO 11 AM MST
TUESDAY...
...WIND ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON...
* WHAT...For the Wind Advisory, southwest winds gusts to 60 mph. For
the High Wind Warning, southwest winds gusting 70 to 80 mph
expected.
* WHERE...Beartooth Foothills and Livingston Area.
* WHEN...For the Wind Advisory, until 5 PM MST this afternoon. For
the High Wind Warning, from 5 PM this afternoon to 11 AM MST
Tuesday.
* IMPACTS...Strong crosswinds will make travel difficult along
Interstate 90 from Livingston to Big Timber and roads along the
Beartooth Foothills. Gusty winds will blow around unsecured
objects.
* ADDITIONAL DETAILS...Strongest wind gusts are expected to occur
tonight to early Tuesday morning.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Winds this strong can make driving difficult, especially for high
profile vehicles. Use extra caution and consider postponing travel
until winds subside, or take an alternate route.
&&
$$
URGENT - WEATHER MESSAGE
National Weather Service Billings MT
110 AM MST Mon Dec 8 2025
MTZ067-068-090815-
/O.UPG.KBYZ.HW.A.0011.251209T0000Z-251209T1800Z/
/O.NEW.KBYZ.HW.W.0013.251209T0000Z-251209T1800Z/
Absaroka/Beartooth Mountains-Crazy Mountains-
Including the locations of Cooke City
110 AM MST Mon Dec 8 2025
...HIGH WIND WARNING IN EFFECT FROM 5 PM THIS AFTERNOON TO 11 AM MST
TUESDAY...
* WHAT...West winds gusting to 80 mph expected.
* WHERE...Absaroka/Beartooth Mountains and Crazy Mountains.
* WHEN...From 5 PM this afternoon to 11 AM MST Tuesday.
* IMPACTS...Outdoor recreation will be impacted by very strong wind
gusts and areas of blowing snow.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Monitor the latest forecasts and warnings for updates.
&&
$$
Winter Weather Advisory
URGENT - WINTER WEATHER MESSAGE
National Weather Service Glasgow MT
200 AM MST Mon Dec 8 2025
MTZ016>027-059>062-082300-
/O.NEW.KGGW.WW.Y.0018.251209T0600Z-251209T2100Z/
Central and Southeast Phillips-Central and Southern Valley-
Daniels-Sheridan-Western Roosevelt-Petroleum-Garfield-McCone-
Richland-Dawson-Prairie-Wibaux-Northern Phillips-Southwest
Phillips-Northern Valley-Eastern Roosevelt-
Including Opheim, Medicine Lake, Terry, Poplar, Glendive, Frazer,
Saco, Glasgow, Malta, Fort Peck, Circle, Plentywood, Fairview,
Whitewater, Zortman, Wolf Point, Scobey, Richey, Jordan, Wibaux,
Sidney, Hinsdale, Culbertson, and Winnett
200 AM MST Mon Dec 8 2025
...WINTER WEATHER ADVISORY IN EFFECT FROM 11 PM THIS EVENING TO 2 PM
MST TUESDAY...
* WHAT...A Wintry mix of snow, rain, and freezing rain expected.
Total ice accumulations around a light glaze to a few hundredths.
Winds gusting as high as 50 to 60 mph.
* WHERE...All of northeast Montana.
* WHEN...From 11 PM this evening to 2 PM MST Tuesday.
* IMPACTS...A light wintry mix combined with cold ground
temperatures will lead to icy surfaces. Look for difficult walking
and driving conditions.
* ADDITIONAL DETAILS...Sharply falling temperatures into the teens
and 20s Tuesday evening will exacerbate the icy conditions.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Slow down and use caution while traveling. Prepare for possible
power outages. The latest road conditions for the state you are
calling from can be obtained by calling 5 1 1.
&&
$$
Maliawco
Wind Advisory
URGENT - WEATHER MESSAGE
National Weather Service Billings MT
110 AM MST Mon Dec 8 2025
MTZ065-066-090815-
/O.UPG.KBYZ.HW.A.0011.251209T0000Z-251209T1800Z/
/O.NEW.KBYZ.HW.W.0013.251209T0000Z-251209T1800Z/
/O.CON.KBYZ.WI.Y.0022.000000T0000Z-251209T0000Z/
Livingston Area-Beartooth Foothills-
Including the locations of Fishtail, McLeod, Springdale, Nye, and
Livingston
110 AM MST Mon Dec 8 2025
...HIGH WIND WARNING IN EFFECT FROM 5 PM THIS AFTERNOON TO 11 AM MST
TUESDAY...
...WIND ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON...
* WHAT...For the Wind Advisory, southwest winds gusts to 60 mph. For
the High Wind Warning, southwest winds gusting 70 to 80 mph
expected.
* WHERE...Beartooth Foothills and Livingston Area.
* WHEN...For the Wind Advisory, until 5 PM MST this afternoon. For
the High Wind Warning, from 5 PM this afternoon to 11 AM MST
Tuesday.
* IMPACTS...Strong crosswinds will make travel difficult along
Interstate 90 from Livingston to Big Timber and roads along the
Beartooth Foothills. Gusty winds will blow around unsecured
objects.
* ADDITIONAL DETAILS...Strongest wind gusts are expected to occur
tonight to early Tuesday 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.
&&
$$
URGENT - WEATHER MESSAGE
National Weather Service Missoula MT
1238 PM MST Sun Dec 7 2025
MTZ001-004-091500-
/O.NEW.KMSO.WI.Y.0010.251209T0300Z-251209T1500Z/
Kootenai/Cabinet Region-Lower Clark Fork Region-
1238 PM MST Sun Dec 7 2025
...WIND ADVISORY IN EFFECT FROM 8 PM MONDAY TO 8 AM MST TUESDAY...
* WHAT...Southwest winds 20 to 30 mph with gusts up to 45 mph
expected. Gusts over 50 mph on the higher terrain.
* WHERE...Kootenai/Cabinet Region and Lower Clark Fork Region.
* WHEN...From 8 PM Monday to 8 AM MST Tuesday.
* IMPACTS...Gusty winds will blow around unsecured objects. Weakened
trees and tree limbs could be blown down impacting road access and
causing localized power outages.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Winds this strong can make driving difficult, especially for high
profile vehicles. Use extra caution.
&&
$$
URGENT - WEATHER MESSAGE
National Weather Service Missoula MT
1238 PM MST Sun Dec 7 2025
MTZ002-091800-
/O.NEW.KMSO.WI.Y.0010.251209T0600Z-251209T1800Z/
West Glacier Region-
1238 PM MST Sun Dec 7 2025
...WIND ADVISORY IN EFFECT FROM 11 PM MONDAY TO 11 AM MST TUESDAY...
* WHAT...Southwest winds 25 to 35 mph with gusts up to 50 mph
expected. Gusts over 50 mph on the higher terrain.
* WHERE...West Glacier Region.
* WHEN...From 11 PM Monday to 11 AM MST Tuesday.
* IMPACTS...Gusty winds will blow around unsecured objects. Weakened
trees and tree limbs could be blown down impacting road access and
causing localized power outages.
* ADDITIONAL DETAILS...Snow and poor visibility is a concern at
Marias Pass Monday afternoon through Tuesday morning. Watch for
changeable conditions near the Pass.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Winds this strong can make driving difficult, especially for high
profile vehicles. Use extra caution.
&&
$$
URGENT - WEATHER MESSAGE
National Weather Service Missoula MT
1238 PM MST Sun Dec 7 2025
MTZ003-091500-
/O.NEW.KMSO.WI.Y.0010.251209T0600Z-251209T1500Z/
Flathead/Mission Valleys-
1238 PM MST Sun Dec 7 2025
...WIND ADVISORY IN EFFECT FROM 11 PM MONDAY TO 8 AM MST TUESDAY...
* WHAT...Southwest winds 15 to 25 mph with gusts up to 45 mph
expected.
* WHERE...Flathead/Mission Valleys.
* WHEN...From 11 PM Monday to 8 AM MST Tuesday.
* IMPACTS...Gusty winds will blow around unsecured objects. Weakened
trees and tree limbs could be blown down impacting road access and
causing localized power outages.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Winds this strong can make driving difficult, especially for high
profile vehicles. Use extra caution.
&&
$$
Local Area Emergency
IDC005-007-011-013-019-023-029-033-041-043-051-065-067-071-077-081-081935-
BULLETIN - EAS ACTIVATION REQUESTED
Local Area Emergency
ID Idaho Office of Emergency Management 1
Relayed by National Weather Service Pocatello ID
1035 AM MST Mon Dec 8 2025
...Endangered Missing Person Alert...
The following message is transmitted at the request of Idaho
Office of Emergency Management 1.
This is an activation of the Endangered Missing Person Alert
system. The Bannock County Sheriff is looking for a missing person
who was last seen at Lone Pine Road and Gay Mine Road and is
believed to be in danger. He is an 84 year old male and was last
seen wearing a blue suit jacket tan slacks and cowboy boots.
Authorities say that the missing person may be traveling in a 2013
Red Lexus GS with license plate 1 B G 8 4 0 4. If you have any
information on the where abouts of this missing person please
contact the Bannock County Sheriff at 2 0 8 2 3 6 7 1 1 1
immediately.
$$
AS-ID-ee15b4d7-6dc8-4753-b7f1-16d76ace2392/AlertSense
Avalanche Watch
MTZ001-091415-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Backcountry Avalanche Watch
Idaho Panhandle Avalanche Center Sandpoint ID
Relayed by National Weather Service Missoula MT
713 AM MST Mon Dec 8 2025
The following message is transmitted at the request of Idaho Panhandle
Avalanche Center Sandpoint ID.
...AVALANCHE WATCH ISSUED BY THE IDAHO PANHANDLE AVALANCHE CENTER...
06:00 PST Mon Dec 08 2025
The Idaho Panhandle Avalanche Center in Sandpoint has issued a BACKCOUNTRY
AVALANCHE WATCH for the following areas:
NWS Missoula MT - MTZ001 (MTZ001)
NWS Spokane WA - ID 017 (Bonner County)...ID 021 (Boundary County)...ID 079
(Shoshone County)
* WHAT...An Avalanche Watch is in effect from Monday 6 AM PST to Monday 4 PM
PST. Very dangerous avalanche conditions could develop overnight Monday
and raise the danger to High (Level 4 of 5).
* WHERE...The Selkirk, West and East Cabinet Mountains, and Bitterroot
Mountains - Silver Valley.
* WHEN...In effect from Mon 06:00 PST to Mon 16:00 PST.
* IMPACTS...Heavy, wet snowfall Monday will transition to heavy rain
overnight. A potent atmospheric river characterized by near-historic
moisture will introduce a firehose of moisture into North Idaho and
Northwestern Montana. The rain line will rise to around 7,000 feet
overnight Monday and will saturate recent snowfall and buried weak layers,
and could provoke a widespread cycle of avalanches large enough to bury,
injure, or kill a person. Some of these avalanches could release naturally,
and it will be very easy for backcountry travelers to trigger them.
* PRECAUTIONARY / PREPAREDNESS ACTIONS...Travel in or below avalanche
terrain is not recommended during this period.
Consult http://www.idahopanhandleavalanche.org/ or www.avalanche.org for
more detailed information.
Similar avalanche danger may exist at locations outside the coverage area of
this or any avalanche center.
$$
Flood Watch
Flood Watch
National Weather Service Missoula MT
1214 PM MST Sun Dec 7 2025
IDC035-049-081915-
/O.NEW.KMSO.FA.A.0009.251209T0000Z-251211T1200Z/
/00000.0.RS.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Clearwater-Idaho-
1214 PM MST Sun Dec 7 2025 /1114 AM PST Sun Dec 7 2025/
...FLOOD WATCH IN EFFECT FROM MONDAY AFTERNOON THROUGH THURSDAY
MORNING...
* WHAT...Flooding caused by rain and snowmelt is possible.
* WHERE...Clearwater and Idaho County, Idaho.
* WHEN...From Monday afternoon through Thursday morning.
* 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. By Thursday,
significant precipitation totals are forecast, with 2 to 4
inches in the valleys and 4 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.
&&
$$
High Wind Watch
URGENT - WEATHER MESSAGE
National Weather Service Billings MT
110 AM MST Mon Dec 8 2025
MTZ029>033-036-037-057-058-138-169-170-173-235-WYZ199-090815-
/O.CON.KBYZ.HW.A.0011.251209T1200Z-251210T0000Z/
Musselshell-Treasure-Northern Rosebud-Custer-Fallon-Powder River-
Carter-Northern Big Horn-Southern Rosebud-Southern Big Horn-
Bighorn Canyon-Northern Carbon-Northeastern Yellowstone-
Southwestern Yellowstone-Sheridan Foothills-
Including the locations of Hardin, Volborg, Lame Deer, Fort Smith,
Ismay, Broadus, Melstone, Custer, Ranchester, Busby, Alzada, Plevna,
Pompeys Pillar, Belltower, Miles City, Pryor, Huntley, Broadview,
Birney, Angela, Ekalaka, Baker, Fromberg, Dayton, Ashland,
Powderville, Billings, Colstrip, Crow Agency, Bighorn, Biddle, Lodge
Grass, Forsyth, Hammond, Sheridan, Ingomar, Laurel, Hysham, Joliet,
Webster, Roundup, Sonnette, Musselshell, Wyola, Big Horn, and
Clearmont
110 AM MST Mon Dec 8 2025
...HIGH WIND WATCH REMAINS IN EFFECT FROM LATE TONIGHT THROUGH
TUESDAY AFTERNOON...
* WHAT...West winds gusting up to 60 mph possible.
* WHERE...Portions of central, south central, and southeast Montana
and north central Wyoming.
* WHEN...From late tonight through Tuesday afternoon.
* IMPACTS...Travel could be difficult, especially for high profile
vehicles. Outdoor activities may be impacted by strong wind gusts.
Secure loose outdoor objects.
* ADDITIONAL DETAILS...Strongest winds will be during the day
Tuesday.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Monitor the latest forecasts and warnings for updates.
&&
$$
Additional graphics for this hazard can be found at
http://www.weather.gov/billings
Lester
Hazardous Weather Outlook
Hazardous Weather Outlook
National Weather Service Riverton WY
315 AM MST Mon Dec 8 2025
WYZ001>020-022>030-091400-
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-
315 AM MST Mon Dec 8 2025
...Winter Storm Watches and Warnings in effect for most of the
western mountains tonight through Wednesday...
...High Wind Warning in effect across southern Wyoming and Natrona
County from late tonight through Wednesday night...
This Hazardous Weather Outlook is for Western and Central Wyoming.
.DAY ONE...Today and Tonight.
Mainly light snow in the mountains. Heavier snow moving back into
the northern mountains tonight. 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...Tuesday through Sunday.
Tuesday and Wednesday...Snow likely in the western and northern
mountains. Strong to high wind continuing in southern Wyoming.
Thursday night and Friday...Another chance for snow in the
northern mountains.
.SPOTTER INFORMATION STATEMENT...
Weather spotters are encouraged to report significant weather
conditions according to Standard Operating Procedures.
$$
Hydrologic Outlook
Hydrologic Outlook
IDC059-MTC053-063-081-089-081930-
Hydrologic Outlook
National Weather Service Missoula MT
1218 PM MST Sun Dec 7 2025
...HEAVY PRECIPITATION TO BRING SMALL STREAM RISES, RISK FOR ROCK
AND LANDSLIDES, AND MINOR FLOODING THIS WEEK...
A prolonged atmospheric river is expected to bring periods of heavy
rain for western Montana and Lemhi County, Idaho, Monday night
through Thursday. Rising snow levels will lead to a rain on snow
event for elevations below 7,000 feet Monday night into Tuesday
morning. The precipitation rates will briefly decrease Tuesday
afternoon, before second surge of moisture arrives Tuesday night
into Thursday. During the second surge, snow levels will be lower,
ranging from 4,000-5,000 feet north of I-90, to 5,000-7,000 feet
south of I-90, with the highest snow levels across Lemhi County,
Idaho. By Thursday, significant precipitation totals are forecast,
with 1 to 3 inches in the valleys and 4 to 8 inches in the
mountains, with locally higher totals over mountain crests.
Landslides in areas of steep terrain and minor flooding in urban and
poor drainage areas is possible. Storm drains and ditches may
become clogged with debris.
$$
AL
