Winter Storm Warning
URGENT - WINTER WEATHER MESSAGE
National Weather Service Riverton WY
859 AM MST Tue Dec 9 2025
WYZ001-002-100200-
/O.CON.KRIW.WS.W.0013.000000T0000Z-251211T0000Z/
Yellowstone National Park-Absaroka Mountains-
Including the cities of Mammoth, Lake, and Old Faithful
859 AM MST Tue Dec 9 2025
...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST WEDNESDAY...
* WHAT...Heavy snow. Additional snow accumulations between 10 and 20
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 .
&&
$$
URGENT - WINTER WEATHER MESSAGE
National Weather Service Riverton WY
859 AM MST Tue Dec 9 2025
WYZ012-100200-
/O.CON.KRIW.WS.W.0013.000000T0000Z-251211T0000Z/
Teton and Gros Ventre Mountains-
859 AM MST Tue Dec 9 2025
...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST WEDNESDAY...
* WHAT...Heavy snow. Additional snow accumulations of 1 to 2 feet.
Winds gusting as 50 to 60 mph, with strongest winds occurring
Tuesday night through Wednesday morning.
* WHERE...Teton and Gros Ventre Mountains, including Teton Pass and
Togwotee Pass.
* WHEN...Until 5 PM MST Wednesday.
* IMPACTS...Travel could be very difficult. The hazardous conditions
could impact travel across Teton and Togwotee Passes Tuesday and
Wednesday. Blowing and drifting of snow is expected. Backcountry
travel is not advised.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency.
For graphical depictions of the snowfall forecast, including the
official NWS forecast, high end amounts, and low end amounts, visit
https://weather.gov/riw/winter .
For winter road conditions from the Wyoming Department of
Transportation, visit https://wyoroad.info .
&&
$$
URGENT - WINTER WEATHER MESSAGE
National Weather Service Billings MT
132 AM MST Tue Dec 9 2025
MTZ067-100845-
/O.CON.KBYZ.WS.W.0018.000000T0000Z-251211T0000Z/
Absaroka/Beartooth Mountains-
Including the locations of Cooke City
132 AM MST Tue Dec 9 2025
...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST WEDNESDAY...
* WHAT...Periods of heavy snow. Additional snow accumulations of 10
to 18 inches, greatest on west aspects. Winds gusting as high as 75
mph.
* WHERE...Absaroka/Beartooth Mountains.
* WHEN...Until 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. Avalanche danger will
increase.
* ADDITIONAL DETAILS...Additional periods of moderate to heavy snow
possible Thursday and Friday.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Outdoor activities in the mountains will be impacted by harsh winter
conditions, so be prepared.
&&
$$
High Wind Warning
URGENT - WEATHER MESSAGE
National Weather Service Billings MT
1055 AM MST Tue Dec 9 2025
MTZ029>033-036-037-057-058-138-169-170-173-235-WYZ199-100000-
/O.CON.KBYZ.HW.W.0013.000000T0000Z-251210T0000Z/
Musselshell-Treasure-Northern Rosebud-Custer-Fallon-Powder River-
Carter-Northern Big Horn-Southern Rosebud-Southern Big Horn-
Bighorn Canyon-Northern Carbon-Northeastern Yellowstone-
Southwestern Yellowstone-Sheridan Foothills-
Including the locations of Baker, Hardin, Lame Deer, Hysham, Ekalaka,
Colstrip, Joliet, Broadus, Sheridan, Forsyth, Pompeys Pillar,
Billings, Fromberg, Pryor, Lodge Grass, Crow Agency, Custer, Miles
City, Roundup, and Fort Smith
1055 AM MST Tue Dec 9 2025
...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 5 PM MST THIS
AFTERNOON...
* WHAT...Northwest winds gusting up to 60 mph.
* WHERE...Portions of central, south central, and southeast Montana
and north central Wyoming.
* WHEN...Until 5 PM MST this afternoon.
* IMPACTS...Travel across the region will be difficult, especially
for high profile vehicles. Outdoor activities will be impacted by
strong wind gusts. Secure loose outdoor objects.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Travelers should be prepared for strong and sudden crosswinds.
&&
$$
URGENT - WEATHER MESSAGE
National Weather Service Billings MT
1055 AM MST Tue Dec 9 2025
MTZ034-042-100000-
/O.CON.KBYZ.HW.W.0013.000000T0000Z-251210T0000Z/
Northern Stillwater-Golden Valley-
Including the locations of Lavina, Absarokee, Columbus, and Ryegate
1055 AM MST Tue Dec 9 2025
...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 5 PM MST THIS
AFTERNOON...
* WHAT...West winds gusting to 65 mph.
* WHERE...Golden Valley and Northern Stillwater.
* WHEN...Until 5 PM MST this afternoon.
* IMPACTS...Travel will be difficult, especially for high profile
vehicles. Secure loose outdoor objects.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Travelers should be prepared for strong and sudden crosswinds.
&&
$$
URGENT - WEATHER MESSAGE
National Weather Service Billings MT
1055 AM MST Tue Dec 9 2025
MTZ056-139-100000-
/O.CON.KBYZ.HW.W.0013.000000T0000Z-251210T0000Z/
Red Lodge Foothills-Southeastern Carbon-
Including the locations of Bridger and Red Lodge
1055 AM MST Tue Dec 9 2025
...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 5 PM MST THIS
AFTERNOON...
* WHAT...Northwest winds gusting 50 to 60 mph expected.
* WHERE...Red Lodge Foothills and Southeastern Carbon.
* WHEN...Until 5 PM MST this afternoon.
* IMPACTS...Travel will be difficult, especially for high profile
vehicles. This includes Highways 212 and 310.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Travelers should be prepared for strong and sudden crosswinds.
&&
$$
URGENT - WEATHER MESSAGE
National Weather Service Billings MT
1055 AM MST Tue Dec 9 2025
MTZ063-141-172-228-100000-
/O.CON.KBYZ.HW.W.0013.000000T0000Z-251210T0000Z/
Judith Gap-Northern Sweet Grass-Melville Foothills-Southern
Wheatland-
Including the locations of Melville, Judith Gap, Big Timber, and
Harlowton
1055 AM MST Tue Dec 9 2025
...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 5 PM MST THIS
AFTERNOON...
* WHAT...West winds gusting to 65 mph.
* WHERE...Judith Gap, Southern Wheatland, Melville Foothills, and
Northern Sweet Grass.
* WHEN...Until 5 PM MST this afternoon.
* IMPACTS...Strong crosswinds will make travel difficult along
Highway 191 from Big Timber through Judith Gap. Secure loose
outdoor objects.
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.
&&
$$
Additional graphics for this hazard can be found at
http://www.weather.gov/billings
Arends
URGENT - WEATHER MESSAGE
National Weather Service Bismarck ND
1150 AM CST Tue Dec 9 2025
NDZ001>003-009>012-017>021-100200-
/O.CON.KBIS.HW.W.0006.251209T1800Z-251210T0300Z/
Divide-Burke-Renville-Williams-Mountrail-Ward-McHenry-McKenzie-Dunn-
Mercer-Oliver-McLean-
Including the cities of Hazen, Garrison, Stanley, Underwood, Center,
Sherwood, Towner, Portal, Killdeer, Washburn, Mohall, Glenburn,
Parshall, Velva, Columbus, Crosby, Lignite, Drake, Williston, New
Town, Beulah, Bowbells, Watford City, Halliday, Powers Lake, Minot,
Turtle Lake, and Wilton
1150 AM CST Tue Dec 9 2025 /1050 AM MST Tue Dec 9 2025/
...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 9 PM CST /8 PM MST/ THIS
EVENING...
* WHAT...Northwest winds 40 mph with gusts up to 65 mph expected.
* WHERE...Portions of northwest and central North Dakota.
* WHEN...Until 9 PM CST /8 PM MST/ this evening.
* IMPACTS...The high winds may damage roofs, small outbuildings and
signs. Tree branches may be broken and lead to power outages.
Travel will be difficult, especially for high profile vehicles.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Secure objects that could be blown around, including holiday
decorations. Be careful when traveling.
&&
$$
URGENT - WEATHER MESSAGE
National Weather Service Bismarck ND
1150 AM CST Tue Dec 9 2025
NDZ031-032-040-043-100200-
/O.CON.KBIS.HW.W.0006.000000T0000Z-251210T0300Z/
Golden Valley-Billings-Slope-Bowman-
Including the cities of Bowman, Medora, Beach, and Marmarth
1050 AM MST Tue Dec 9 2025
...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 8 PM MST THIS EVENING...
* WHAT...Northwest winds 40 mph with gusts up to 65 mph expected.
* WHERE...Billings, Bowman, Golden Valley, and Slope Counties.
* WHEN...Until 8 PM MST this evening.
* IMPACTS...The high winds may damage roofs, small outbuildings and
signs. Tree branches may be broken and lead to power outages.
Travel will be difficult, especially for high profile vehicles.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Secure objects that could be blown around, including holiday
decorations. Be careful when traveling.
&&
$$
URGENT - WEATHER MESSAGE
National Weather Service Bismarck ND
1150 AM CST Tue Dec 9 2025
NDZ022-023-025-033>037-041-042-044>048-050-051-100200-
/O.CON.KBIS.HW.W.0006.251209T1800Z-251210T0900Z/
Sheridan-Wells-Foster-Stark-Morton-Burleigh-Kidder-Stutsman-
Hettinger-Grant-Adams-Sioux-Emmons-Logan-La Moure-McIntosh-Dickey-
Including the cities of Mandan, Hettinger, Oakes, Strasburg, Lamoure,
Selfridge, Goodrich, New England, Dickinson, Kulm, Napoleon,
Mcclusky, Ashley, Steele, Jamestown, Ellendale, Harvey, Mott,
Edgeley, New Leipzig, Gackle, Elgin, Tappen, Carrington, Solen, Fort
Yates, Carson, Wishek, Bismarck, Linton, and Fessenden
1150 AM CST Tue Dec 9 2025 /1050 AM MST Tue Dec 9 2025/
...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 3 AM CST /2 AM MST/
WEDNESDAY...
* WHAT...Northwest winds 40 mph with gusts up to 65 mph expected.
* WHERE...Portions of southwest, south central, and central North
Dakota.
* WHEN...Until 3 AM CST /2 AM MST/ Wednesday.
* IMPACTS...The high winds may damage roofs, small outbuildings and
signs. Tree branches may be broken and lead to power outages.
Travel will be difficult, especially for high profile vehicles.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Secure objects that could be blown around, including holiday
decorations. Be careful when traveling.
&&
$$
Anglin
URGENT - WEATHER MESSAGE
National Weather Service Great Falls MT
946 AM MST Tue Dec 9 2025
MTZ305-306-310-311-313-314-317-318-320-321-092200-
/O.CON.KTFX.HW.W.0029.000000T0000Z-251209T2200Z/
Hill County-Northern Blaine County-Western and Central Chouteau
County-Bears Paw Mountains and Southern Blaine-Judith Basin
County and Judith Gap-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: Maudlow, Kings Hill Pass,
Bozeman Pass, Checkerboard, Carter, Hilger, Fort Belknap, Zurich,
Trident, Moccasin, Hobson, Monarch, Harlem, Rocky Boy, Ringling,
Raynesford, Benchland, White Sulphur Springs, Battle Ridge Pass,
Deep Creek Pass, Hogeland, Lewistown, Neihart, Floweree, Havre,
Geyser, Chinook, Stanford, Windham, Fort Benton, and Martinsdale
946 AM MST Tue Dec 9 2025
...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 3 PM MST THIS
AFTERNOON...
* WHAT...West winds 30 to 40 mph with gusts up to 70 mph.
* WHERE...Bears Paw, Highwood, Little Belt, and Snowy Mountains,
Hill County, Northern Blaine County, Western and Central Chouteau
County, Judith Basin County and Judith Gap, Fergus County below
4500ft, Big Belt, Bridger and Castle Mountains, and Meagher County
Valleys.
* WHEN...Until 3 PM MST this afternoon.
* 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.
&&
$$
Wilson
URGENT - WEATHER MESSAGE
National Weather Service Glasgow MT
242 AM MST Tue Dec 9 2025
MTZ016>027-059>062-100000-
/O.CON.KGGW.HW.W.0011.000000T0000Z-251210T0000Z/
Central and Southeast Phillips-Central and Southern Valley-
Daniels-Sheridan-Western Roosevelt-Petroleum-Garfield-McCone-
Richland-Dawson-Prairie-Wibaux-Northern Phillips-Southwest
Phillips-Northern Valley-Eastern Roosevelt-
Including Plentywood, Terry, Fairview, Hinsdale, Winnett,
Glendive, Culbertson, Malta, Poplar, Fort Peck, Saco, Whitewater,
Opheim, Sidney, Wolf Point, Jordan, Scobey, Wibaux, Glasgow,
Richey, Medicine Lake, Circle, Zortman, and Frazer
242 AM MST Tue Dec 9 2025
...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 5 PM MST THIS
AFTERNOON...
* WHAT...West winds 30 to 40 mph with gusts up to 60 mph.
* WHERE...All of northeast Montana.
* WHEN...Until 5 PM MST this afternoon.
* IMPACTS...High winds may move loose debris, damage property, and
cause power bumps. Travel could be difficult, especially for high
profile vehicles.
* ADDITIONAL DETAILS...Freezing rain this morning will create icy
roads in some areas.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Remain in the lower levels of your home during the windstorm, and
avoid windows. Watch for falling debris and tree limbs. Use caution
if you must drive.
&&
$$
Forrester
URGENT - WEATHER MESSAGE
National Weather Service Rapid City SD
234 AM MST Tue Dec 9 2025
SDZ001-002-012>014-025>027-030>032-041>044-046-047-049-072>078-
WYZ060-100045-
/O.CON.KUNR.HW.W.0009.251209T1500Z-251210T0900Z/
Harding-Northern Perkins-Butte-Northern Meade Co Plains-Ziebach-
Northern Foothills-Rapid City-Southern Foothills-Custer Co Plains-
Pennington Co Plains-Haakon-Western Fall River-Northern Oglala
Lakota-Northern Jackson-Bennett-Mellette-Todd-Tripp-
Sturgis/Piedmont Foothills-Southern Meade Co Plains-Hermosa
Foothills-Eastern Fall River-Southern Oglala Lakota-Southern
Jackson-Southern Perkins-Northeastern Crook-
Including the cities of Newell, Red Owl, Belle Fourche Reservoir,
Lemmon, Zeona, Shadehill, Colome, Provo, Howes, Ardmore, Hermosa,
Mud Butte, Opal, Tuthill, Philip, Spearfish, Union Center,
Ellsworth AFB, Oral, Batesland, Hoover, Fruitdale, Long Valley,
Mission, Rosebud, Elm Springs, Usta, Parmelee, Sorum, Buffalo,
Meadow, Enning, Camp Crook, Vale, Folsom, Martin, Smithwick,
Wasta, Fairburn, Allen, Glad Valley, Belle Fourche, Bison, Wood,
Saint Francis, Reva, Redig, Harrington, Wounded Knee, Dupree,
Manderson, White River, Tilford, Potato Creek, Winner, Oelrichs,
Aladdin, Faith, Pine Ridge, Black Hawk, Cottonwood, Ladner,
Witten, Wanblee, Midland, Kyle, Cedar Butte, Summerset, Angostura
Reservoir, White Owl, Oglala, Edgemont, Box Elder, Saint Onge,
Colony, Beulah, Prairie City, Rockyford, Ideal, Milesville,
Quinn, Whitewood, Interior, Sharps Corner, Piedmont, Buffalo Gap,
New Underwood, Wall, Porcupine, Norris, South Eagle Butte,
Belvidere, Caputa, Kadoka, Ludlow, Hot Springs, Hamill, Cherry
Creek, Rumford, Sturgis, Scenic, and Rapid City
234 AM MST Tue Dec 9 2025 /334 AM CST Tue Dec 9 2025/
...HIGH WIND WARNING REMAINS IN EFFECT FROM 8 AM MST /9 AM CST/ THIS
MORNING TO 2 AM MST /3 AM CST/ WEDNESDAY...
* WHAT...Northwest winds 35 to 45 mph with gusts up to 65 mph
expected.
* WHERE...Portions of northwestern, south central, and southwestern
South Dakota and northeast Wyoming.
* WHEN...From 8 AM MST /9 AM CST/ this morning to 2 AM MST /3 AM
CST/ Wednesday.
* IMPACTS...The high winds may blow down large trees and damage
roofs, small outbuildings, and signs. Power outages are possible.
Travel could be difficult, especially for high profile vehicles.
Strong winds can cause blowing dust, reduced visibility, and
flying debris.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A high wind warning means 40 mph winds, or gusts over 60 mph, are
expected or occurring. If you are outdoors, watch for flying or
falling objects that may injure you. Use caution if you must drive.
&&
$$
Calderon
Avalanche Warning
MTZ001-101100-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
BACKCOUNTRY AVALANCHE WARNING
Idaho Panhandle Avalanche Center Sandpoint ID
Relayed by National Weather Service Missoula MT
1153 AM MST Tue Dec 9 2025
The following message is transmitted at the request of Idaho Panhandle
Avalanche Center Sandpoint ID.
...AVALANCHE WARNING BY THE IDAHO PANHANDLE AVALANCHE CENTER REMAINS IN EFFECT...
The Idaho Panhandle Avalanche Center in Sandpoint has issued a BACKCOUNTRY
AVALANCHE WARNING for the following areas:
NWS Missoula MT -
MTZ001 (MTZ001)
NWS Spokane WA -
ID 017 (Bonner County)...ID 021 (Boundary County)
* WHAT...An Avalanche Warning remains in effect until Wednesday 4
AM. Very dangerous avalanche conditions developed overnight and
will last though Tuesday as heavy, wet snowfall transitioned to
heavy rain along with strong winds.
* WHERE...The Selkirk Mountains, West and East Cabinet Mountains,
and the Silver Valley-Bitterroot Mountains.
* WHEN...In effect from Tue 6:00 PST to Wed 4:00 PST.
* IMPACTS... A potent atmospheric river characterized by near-
historic moisture is introducing a "firehose" of moisture into
North Idaho and Northwestern Montana. The rain line rose to
around 7,000 to 7,500 feet overnight Monday and will saturate
recent snowfall and overload pre-existing weak snow layers. It
will be very likely for backcountry travelers to trigger
avalanches and natural avalanches are likely. Avalanches can
break wide across terrain features and run long distances to
lower elevations.
* PRECAUTIONARY / PREPAREDNESS ACTIONS...Travel in avalanche
terrain is not recommended during this period.
Consult http://www.idahopanhandleavalanche.org/ or www.avalanche.org for
more detailed information.
Similar avalanche danger may exist at locations outside the coverage area
of this or any avalanche center.
$$
MTZ067-101200-
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.
$$
MTZ001-002-101200-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Backcountry Avalanche Warning
Flathead Avalanche Center Hungry Horse MT
Relayed by National Weather Service Missoula MT
534 AM MST Tue Dec 9 2025
The following message is transmitted at the request of Flathead Avalanche
Center Hungry Horse MT.
...AVALANCHE WARNING ISSUED BY THE FLATHEAD AVALANCHE CENTER...
06:00 MST Tue Dec 09 2025
The Flathead Avalanche Center in Hungry Horse has issued a BACKCOUNTRY
AVALANCHE WARNING for the following areas:
NWS Missoula MT -
MTZ001 (MTZ001)...MTZ002 (MTZ002)
* WHAT...Heavy rain, heavy snowfall, strong winds, and above-freezing
temperatures have created very dangerous avalanche conditions.
* WHERE...The Whitefish, Swan, and Flathead Ranges, as well as the Apgar
Mountains, Lake McDonald Valley, and Marias Pass areas of Glacier National
Park.
* WHEN...In effect from Tue 06:00 MST to Wed 05:00 MST.
* IMPACTS...Large to very large natural avalanches are likely on mid- and
upper-elevation slopes; they may involve wet snow or dense slabs of new and
wind-drifted snow. These slides can run into low elevation terrain and
valley bottoms, including terrain where it doesn`t appear to be enough snow
cover for avalanche hazards.
* PRECAUTIONARY / PREPAREDNESS ACTIONS...Very dangerous avalanche
conditions. Travel in and below avalanche terrain is not recommended.
Avalanches may run long distances and can run into mature forests, valley
floors, or flat terrain.
Consult http://www.flatheadavalanche.org/ or www.avalanche.org for more
detailed information.
Similar avalanche danger may exist at locations outside the coverage area of
this or any avalanche center.
$$
IDC017-021-079-100000-
Avalanche Warning
Idaho Panhandle Avalanche Center Sandpoint ID
Relayed by National Weather Service Spokane WA
504 PM PST Mon Dec 8 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)...
ID 079 (Shoshone County)
* WHAT...An Avalanche Warning is in effect from Monday 4 PM to
Tuesday 4 PM. Very dangerous avalanche conditions will develop
overnight and last though Tuesday as heavy, wet snowfall
transitions to heavy rain along with strong winds. You can very
easily trigger avalanches large enough to bury or kill you, and
some will release spontaneously. Avoid travel in avalanche
terrain during this period.
* WHERE...The Selkirk Mountains, West and East Cabinet Mountains, and
the Silver Valley-Bitterroot Mountains above 4,000 feet.
* WHEN...In effect from Mon 16:00 PST to Tue 16:00 PST.
* IMPACTS...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 to 7,500 feet overnight Monday and will saturate
recent snowfall and overload pre-existing weak snow layers. It
will be very likely for backcountry travelers to trigger
avalanches and natural avalanches are likely. Avalanches can
break wide across terrain features and run long distances to
lower elevations.
* PRECAUTIONARY / PREPAREDNESS ACTIONS...Travel in 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.
$$
MTC029-053-100115-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Backcountry Avalanche Warning
Relayed by National Weather Service Missoula MT
601 PM MST Mon Dec 8 2025
The following message is transmitted at the request of Idaho Panhandle
Avalanche Center Sandpoint ID.
...AVALANCHE WARNING ISSUED BY THE IDAHO PANHANDLE AVALANCHE CENTER...
16:00 PST Mon Dec 08 2025 The Idaho Panhandle Avalanche Center in Sandpoint
has issued a BACKCOUNTRY AVALANCHE WARNING for the following areas:
NWS Missoula MT -
MTZ001 (MTZ001)
NWS Spokane WA -
ID 017 (Bonner County)...ID 021 (Boundary County)
* WHAT...An Avalanche Warning is in effect from Monday 4 PM to Tuesday 4
PM. Very dangerous avalanche conditions will develop overnight and last
though Tuesday as heavy, wet snowfall transitions to heavy rain along with
strong winds. You can very easily trigger avalanches large enough to bury
or kill you, and some will release spontaneously. Avoid travel in avalanche
terrain during this period.
* WHERE...The Selkirk Mountains, West and East Cabinet Mountains, and the
Silver Valley-Bitterroot Mountains above 4,000 feet.
* WHEN...In effect from Mon 16:00 PST to Tue 16:00 PST.
* IMPACTS...A potent atmospheric river characterized by near-historic
moisture will introduce a firehose of moisture into North Idaho and
Northwestern Montana. The rain line will rise to around 7,000 to 7,500 feet
overnight Monday and will saturate recent snowfall and overload pre-
existing weak snow layers. It will be very likely for backcountry travelers
to trigger avalanches and natural avalanches are likely. Avalanches can
break wide across terrain features and run long distances to lower
elevations.
* PRECAUTIONARY / PREPAREDNESS ACTIONS...Travel in avalanche terrain is not
recommended during this period.
Consult http://www.idahopanhandleavalanche.org/ or www.avalanche.org for
more detailed information.
Similar avalanche danger may exist at locations outside the coverage area
of this or any avalanche center.
$$
Winter Weather Advisory
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.
&&
$$
AW
URGENT - WINTER WEATHER MESSAGE
National Weather Service Riverton WY
859 AM MST Tue Dec 9 2025
WYZ008-100200-
/O.CON.KRIW.WW.Y.0036.000000T0000Z-251211T0000Z/
Bighorn Mountains West-
859 AM MST Tue Dec 9 2025
...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST
WEDNESDAY...
* WHAT...Snow. Additional snow accumulations up to 12 to 20 inches
across higher peaks in the northern part of the Range, including
along Granite Pass. Around 6 to 12 inches across Powder River
Pass. 1 to 3 inches of snow possible across the southern part of
the Range. Winds gusting as high as 50 to 60 mph.
* WHERE...Bighorn Mountains West.
* WHEN...Until 5 PM MST Wednesday.
* IMPACTS...Travel could be very difficult across Powder River and
Granite Passes. Significant blowing and drifting of snow is
possible. Backcountry travel is not advised.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Slow down and use caution while traveling.
For graphical depictions of the snowfall forecast, including the
official NWS forecast, high end amounts, and low end amounts, visit
https://weather.gov/riw/winter .
For winter road conditions from the Wyoming Department of
Transportation, visit https://wyoroad.info .
&&
$$
URGENT - WINTER WEATHER MESSAGE
National Weather Service Great Falls MT
320 AM MST Tue Dec 9 2025
MTZ301-307-100000-
/O.NEW.KTFX.WW.Y.0054.251210T0700Z-251210T1800Z/
East Glacier Park Region-Southern Rocky Mountain Front-
Including the following locations: Saint Mary, Rogers Pass, East
Glacier Park, Logan Pass, Babb, Kiowa, and Marias Pass
320 AM MST Tue Dec 9 2025
...WINTER WEATHER ADVISORY IN EFFECT
FROM MIDNIGHT TONIGHT TO 11 AM MST WEDNESDAY...
* WHAT...Snow expected. Total snow accumulations 2 to 4 inches on
Marias Pass, and up to 7 inches at ridge tops.
* WHERE...The Continental Divide along the Rocky Mountain Front.
* WHEN...From midnight tonight to 11 AM MST Wednesday.
* IMPACTS...Roads, and especially bridges and overpasses, will
likely become slick and hazardous.
* ADDITIONAL DETAILS...Snowfall rates near 1 inch per hour will be
possible between 4 AM and 7 AM Wednesday.
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.
&&
$$
Brusda
URGENT - WINTER WEATHER MESSAGE
National Weather Service Glasgow MT
239 AM MST Tue Dec 9 2025
MTZ016>027-059>062-092100-
/O.CON.KGGW.WW.Y.0018.000000T0000Z-251209T2100Z/
Central and Southeast Phillips-Central and Southern Valley-
Daniels-Sheridan-Western Roosevelt-Petroleum-Garfield-McCone-
Richland-Dawson-Prairie-Wibaux-Northern Phillips-Southwest
Phillips-Northern Valley-Eastern Roosevelt-
Including Plentywood, Terry, Fairview, Hinsdale, Winnett,
Glendive, Culbertson, Malta, Poplar, Fort Peck, Saco, Whitewater,
Opheim, Sidney, Wolf Point, Jordan, Scobey, Wibaux, Glasgow,
Richey, Medicine Lake, Circle, Zortman, and Frazer
239 AM MST Tue Dec 9 2025
...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 2 PM MST THIS
AFTERNOON...
* WHAT...Freezing rain. Additional ice accumulations around a light
glaze. West winds gusting as high as 60 mph.
* WHERE...All of northeast Montana.
* WHEN...Until 2 PM MST this afternoon.
* IMPACTS...Very slippery sidewalks, roads and bridges are possible.
The hazardous conditions could impact the Tuesday morning commute.
Strong winds could cause tree damage.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Slow down and use caution while traveling. Prepare for possible
power outages. The latest road conditions for the state you are
calling from can be obtained by calling 5 1 1.
&&
$$
Forrester
URGENT - WINTER WEATHER MESSAGE
National Weather Service Billings MT
132 AM MST Tue Dec 9 2025
WYZ198-100845-
/O.CON.KBYZ.WW.Y.0040.251209T1200Z-251211T0000Z/
Northeast Bighorn Mountains-
Including the locations of Story and Burgess Jct
132 AM MST Tue Dec 9 2025
...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 5 AM EARLY THIS
MORNING TO 5 PM MST WEDNESDAY...
* WHAT...Periods of snow expected. Total snow accumulations between 4
and 10 inches above 7,000 ft with lesser amounts below. Winds
gusting as high as 55 mph.
* WHERE...Northeast Bighorn Mountains.
* WHEN...From 5 AM early this morning to 5 PM MST Wednesday.
* IMPACTS...Travel will be very difficult on Highway 14 through the
Bighorns. Widespread blowing snow may significantly reduce
visibility.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Outdoor recreation will be impacted by harsh wintry conditions. Slow
down and use caution while traveling. For the latest road conditions,
call 5 1 1.
&&
$$
Additional graphics for this hazard can be found at
http://www.weather.gov/billings
Lester
URGENT - WINTER WEATHER MESSAGE
National Weather Service Missoula MT
1242 AM MST Tue Dec 9 2025
MTZ002-043-101800-
/O.NEW.KMSO.WW.Y.0047.251210T0700Z-251210T1800Z/
West Glacier Region-Potomac/Seeley Lake Region-
1242 AM MST Tue Dec 9 2025
...WINTER WEATHER ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO 11 AM
MST WEDNESDAY...
* WHAT...Snow expected. There is a likelihood of moderate winter
weather impacts. Total snow accumulations of 2 to 5 inches.
* WHERE...Marias Pass, Highway 83 Bigfork to Swan Lake, Highway 83
Seeley Lake to Condon, Glacier National Park, Highway 200 Bonner
to Greenough, Polebridge, Essex, I-90 East Missoula to Bearmouth,
and Bad Rock Canyon.
* WHEN...From midnight tonight to 11 AM MST Wednesday.
* IMPACTS...For MODERATE winter weather impacts, expect disruptions
to normal activities. Difficult traveling conditions. Use extra
caution while driving. The difficult conditions could impact the
Wednesday morning commute, especially over higher passes.
* ADDITIONAL DETAILS...Snowfall rates of 1 inch per hour will be
possible between 4am and 7am
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Slow down and use caution while traveling. The latest road
conditions for the state you are calling from can be obtained by
calling 5 1 1.
&&
$$
Wind Advisory
URGENT - WEATHER MESSAGE
National Weather Service Billings MT
1055 AM MST Tue Dec 9 2025
MTZ065-066-092100-
/O.EXP.KBYZ.HW.W.0013.000000T0000Z-251209T1800Z/
/O.NEW.KBYZ.WI.Y.0023.251209T1800Z-251209T2100Z/
Livingston Area-Beartooth Foothills-
Including the locations of Mc Leod, Livingston, Limestone, Fishtail,
Nye, and Dean
1055 AM MST Tue Dec 9 2025
...HIGH WIND WARNING WILL EXPIRE AT 11 AM MST THIS MORNING...
...WIND ADVISORY IN EFFECT UNTIL 2 PM MST THIS AFTERNOON...
* WHAT...West winds 30 to 40 mph with gusts up to 60 mph expected.
* WHERE...Beartooth Foothills and Livingston Area.
* WHEN...Until 2 PM MST this afternoon.
* IMPACTS...Strong crosswinds will make travel difficult along
Interstate 90 from Livingston to Big Timber and roads along the
Beartooth Foothills.
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.
&&
$$
Flood Watch
Flood Watch
National Weather Service Spokane WA
1036 AM PST Tue Dec 9 2025
...The National Weather Service in Spokane WA has issued a Flood
Watch for the following rivers in Idaho...
St Joe River at Calder affecting Shoshone County.
For the St. Joe River...including Calder...flooding is possible.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If you are in the watch area, remain alert to possible flooding.
Residents and those with interests near the river should monitor
rising water levels and be prepared for possible flood warnings.
Please report observed flooding to local emergency services or law
enforcement and request they pass this information to the National
Weather Service when you can do so safely.
Additional information is available at www.weather.gov.
The next statement will be issued this evening at 700 PM PST.
&&
IDC079-100300-
/O.NEW.KOTX.FL.A.0004.251211T1219Z-251213T1104Z/
/CLDI1.0.RS.000000T0000Z.000000T0000Z.000000T0000Z.NO/
1036 AM PST Tue Dec 9 2025
...FLOOD WATCH IN EFFECT FROM LATE WEDNESDAY NIGHT TO EARLY SATURDAY
MORNING...
* WHAT...Flooding is possible.
* WHERE...St Joe River at Calder.
* WHEN...From late Wednesday night to early Saturday morning.
* IMPACTS...At 10.0 feet, Water may cover the low spots on Calder
Road between the St Joe River Road and the Calder Bridge.
At 11.0 feet, Flooding in riverside RV areas near Meadow and Oxbow
Lanes downstream of Calder to the Cutthroat Resort.
At 13.0 feet, Bear Creek will begin to back up from the St Joe River
and may start to spill into the town of Calder, flooding the low
spots in yards, roads and parking lots.
* ADDITIONAL DETAILS...
- At 9:30 AM PST Tuesday the stage was 11.7 feet.
- Forecast...Flood stage may be reached early Thursday morning.
- Flood stage is 13.0 feet.
- http://www.weather.gov/safety/flood
&&
LAT...LON 4739 11632 4735 11604 4717 11604 4721 11635
$$
VMT
Flood Watch
National Weather Service Spokane WA
1034 AM PST Tue Dec 9 2025
...The National Weather Service in Spokane WA has issued a Flood
Watch for the following rivers in Idaho...
Coeur d Alene River at Cataldo affecting Kootenai and Shoshone
Counties.
For the Coeur d`Alene River...including Cataldo...flooding is
possible.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If you are in the watch area, remain alert to possible flooding.
Residents and those with interests near the river should monitor
rising water levels and be prepared for possible flood warnings.
Please report observed flooding to local emergency services or law
enforcement and request they pass this information to the National
Weather Service when you can do so safely.
Additional information is available at www.weather.gov.
The next statement will be issuedthis evening at 700 PM PST.
&&
IDC055-079-100300-
/O.NEW.KOTX.FL.A.0003.251211T1035Z-251213T0707Z/
/CTLI1.0.RS.000000T0000Z.000000T0000Z.000000T0000Z.NO/
1034 AM PST Tue Dec 9 2025
...FLOOD WATCH IN EFFECT FROM LATE WEDNESDAY NIGHT TO LATE FRIDAY
EVENING...
* WHAT...Flooding is possible.
* WHERE...Coeur d Alene River at Cataldo.
* WHEN...From late Wednesday night to late Friday evening.
* IMPACTS...At 42.0 feet, Portions of the campground south of I-90
and Dudley Road, downstream of Cataldo, may be underwater if
floodplain storage areas are already full of water. This includes
areas around Cataldo Mission exit.
At 42.5 feet, Portions of Riverview Road between Cataldo and
Kingston will be flooded, especially near Abbey Road and below Fast
Hill Road. Lowlands around Latour Creek Road will fill with water.
At 43.0 feet, Minor flooding of farmland from Cataldo downstream to
Rose Lake and Harrison is likely. The campground at Cataldo will
also begin to flood. Portions of Dudley Road, west of Latour Creek,
will likely be underwater and impassable. If there is significant
water already in the floodplain, these impacts may occur at lower
stages. Old Coeur d`Alene River Road on the North Fork of the Coeur
d`Alene River near Enaville may begin to flood north of the
Bumblebee Bridge.
At 44.0 feet, Homes near the river may experience some flooding of
basements. Water will begin to cover CCC Road near the Mennonite
Church. Some water will be over the section of Latour Creek Road
immediately south of Interstate 90, near the campground. Due to the
high water table some homes behind the Cataldo levee will be
surrounded by water.
At 45.0 feet, The County may begin pumping operations behind levels
above this stage if the river is expected to remain over flood stage
for a long duration.
* ADDITIONAL DETAILS...
- At 9:15 AM PST Tuesday the stage was 39.7 feet.
- Forecast...Flood stage may be reached early Thursday morning.
- Flood stage is 43.0 feet.
- http://www.weather.gov/safety/flood
&&
LAT...LON 4752 11620 4742 11673 4750 11680 4764 11626
$$
VMT
Flood Watch
National Weather Service Spokane WA
604 AM PST Tue Dec 9 2025
IDC009-055-079-100315-
/O.CON.KOTX.FA.A.0005.000000T0000Z-251212T0000Z/
/00000.0.RS.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Benewah-Kootenai-Shoshone-
Including the cities of Tensed, Emida, Coeur d`Alene, Bayview,
Rathdrum, Osburn, St. Maries, St. Joe, Smelterville, Plummer,
Kingston, Mullan, Prichard, Kellogg, Worley, Calder, Hayden, Post
Falls, Pinehurst, Athol, Wallace, Santa, Cataldo, and Murray
604 AM PST Tue Dec 9 2025
...FLOOD WATCH REMAINS IN EFFECT THROUGH THURSDAY AFTERNOON...
* WHAT...Flooding caused by rain and snowmelt continues to be
possible.
* WHERE...A portion of North Idaho, including the following
counties, Benewah, Kootenai and Shoshone.
* WHEN...Through Thursday afternoon.
* IMPACTS...Excessive runoff may result in flooding of rivers,
creeks, streams, and other low-lying and flood-prone locations.
There will also be a risk of mud and rock slides in steep terrain.
* ADDITIONAL DETAILS...
- An atmospheric river moving into the Pacific Northwest
continues to bring moderate to heavy rainfall to the central
Idaho Panhandle. Rain and snowmelt will bring an increased
risk for urban and small stream flooding and mud and rock
slides in steep terrain.
- http://www.weather.gov/safety/flood
PRECAUTIONARY/PREPAREDNESS ACTIONS...
You should monitor later forecasts and be alert for possible Flood
Warnings. Those living in areas prone to flooding should be prepared
to take action should flooding develop.
&&
$$
JCLEV
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.
&&
$$
High Wind Watch
URGENT - WEATHER MESSAGE
National Weather Service Great Falls MT
946 AM MST Tue Dec 9 2025
MTZ302-303-308-101215-
/O.EXP.KTFX.HW.W.0029.000000T0000Z-251209T1700Z/
/O.CON.KTFX.HW.A.0029.251210T1500Z-251211T0000Z/
Northern High Plains-Eastern Glacier, Western Toole, and Central
Pondera-Southern High Plains-
Including the following locations: Santa Rita, Bynum, Heart
Butte, Ethridge, Cut Bank, Choteau, Dupuyer, Browning, and
Pendroy
946 AM MST Tue Dec 9 2025
...HIGH WIND WATCH REMAINS IN EFFECT FROM WEDNESDAY MORNING THROUGH
WEDNESDAY AFTERNOON...
...HIGH WIND WARNING WILL EXPIRE AT 10 AM MST THIS MORNING...
* WHAT...For the High Wind Watch, west winds 30 to 40 mph with gusts
up to 60 mph possible.
* WHERE...The foothills and plains adjacent to the Rocky Mountain
Front, and Eastern Glacier, Western Toole, and Central Pondera
Counties.
* WHEN...From Wednesday morning through Wednesday afternoon.
* IMPACTS...Travel could be difficult, especially for high profile
vehicles.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Remember, a High Wind Watch means that there is at least a 50%
chance of 40 mph sustained winds or 58 mph wind gusts occurring
during the watch period.
&&
$$
Extreme Fire Danger
Rangeland Fire Danger Statement
National Weather Service Rapid City SD
353 AM MST Tue Dec 9 2025
.DISCUSSION...Mild and windy conditions are expected today. Highs
will be in the 50s to near 60s. West/northwest winds with gusts
to 45 to 65 mph will develop, with the strongest winds across the
northwest South Dakota plains. Minimum relative humidity will be
in the 40 to 60 percent range. These conditions will support high
to extreme Grassland Fire Danger today, with the exception being
where light snow cover persists.
SDZ012-026-027-030-031-041>043-046-047-072>075-077-100115-
Butte-Rapid City-Southern Foothills-Custer Co Plains-
Pennington Co Plains-Western Fall River-Northern Oglala Lakota-
Northern Jackson-Mellette-Todd-Sturgis/Piedmont Foothills-
Southern Meade Co Plains-Hermosa Foothills-Eastern Fall River-
Southern Jackson-
Including the cities of Belle Fourche, Newell, Vale, Fruitdale,
Belle Fourche Reservoir, Hoover, Rapid City, Hot Springs,
Angostura Reservoir, Folsom, Box Elder, Caputa, New Underwood,
Wasta, Wall, Scenic, Quinn, Ardmore, Edgemont, Provo, Rumford,
Kyle, Rockyford, Sharps Corner, Kadoka, Cottonwood, Interior,
Belvidere, White River, Wood, Norris, Cedar Butte, Mission,
Rosebud, Saint Francis, Parmelee, Sturgis, Piedmont, Black Hawk,
Summerset, Tilford, Ellsworth AFB, Union Center, Elm Springs,
Enning, White Owl, Hermosa, Buffalo Gap, Fairburn, Oral,
Oelrichs, Smithwick, Long Valley, Wanblee, and Potato Creek
353 AM MST Tue Dec 9 2025 /453 AM CST Tue Dec 9 2025/
...EXTREME FIRE DANGER...
The grassland fire danger index will reach the extreme category
this afternoon. Extreme weather conditions and very low moisture
content of grasses, and other dry organic material on the ground,
indicate that critical burning conditions exist. All fires have
the potential to become large and spread quickly becoming erratic
with extreme behavioral characteristics. No outdoor burning
should take place.
The outlook for Wednesday afternoon, The grassland fire danger
index will reach the low category to moderate category.
$$
Air Quality Alert
SDZ026-100700-
Rapid City-
Including the city of Rapid City
601 AM MST Tue Dec 9 2025
...AIR POLLUTION ALERT FOR DUST FOR RAPID CITY WEST OF THE GAP IN
EFFECT FROM 10 AM THIS MORNING TO MIDNIGHT MST TONIGHT...
The following message is transmitted in collaboration with the
South Dakota Department of Agriculture and Natural Resources.
* WHAT...Northwest winds of 20 to 35 mph with gusts up to 60 mph.
* WHERE...West of the Gap in Rapid City.
* WHEN...Today and this evening.
IMPACTS...The gusty winds will suspend fine dust in the air and
produce poor air quality.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
The Rapid City Air Quality Office recommends the elderly, young,
and anyone with respiratory problems avoid excessive physical
exertion and exposure to the outside air.
Voluntary actions to reduce dust pollution include, ceasing or
reducing the manipulation of soil in construction, industrial,
and agricultural activities, and increasing the use of pollution
controls for soil stabilization, waste pits, stock piles, and
construction sites.
&&
Hourly dust concentrations are available on the danr web page
http://danr.sd.gov/Environment/AirQuality/AirMonitoring/
RealTimeData.aspx
$$
Hazardous Weather Outlook
Hazardous Weather Outlook
National Weather Service Bismarck ND
1154 AM CST Tue Dec 9 2025
NDZ001>003-009>011-017>021-031>035-040>046-101800-
Divide-Burke-Renville-Williams-Mountrail-Ward-McKenzie-Dunn-
Mercer-Oliver-McLean-Golden Valley-Billings-Stark-Morton-Burleigh-
Slope-Hettinger-Grant-Bowman-Adams-Sioux-Emmons-
1154 AM CST Tue Dec 9 2025 /1054 AM MST Tue Dec 9 2025/
This Hazardous Weather Outlook is for portions of north central
North Dakota, northwest North Dakota, south central North Dakota,
and southwest North Dakota.
.DAY ONE...This Afternoon and Tonight
A High Wind Warning is in effect this afternoon through tonight
across western and central North Dakota. See weather.gov/bis for
details.
.DAYS TWO THROUGH SEVEN...Wednesday through Monday
Dangerously cold wind chills are possible Thursday evening through
Sunday morning.
.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 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.
$$
Hydrologic Outlook
Hydrologic Outlook
MTC039-063-081-102100-
Hydrologic Outlook
National Weather Service Missoula MT
122 PM MST Mon Dec 8 2025
...NEAR RECORD HEAVY PRECIPITATION TO BRING SMALL STREAM RISES, RISK
FOR ROCK AND LANDSLIDES, AND MINOR FLOODING THIS WEEK...
A prolonged atmospheric river is expected to bring periods of heavy
rain for western Montana Monday night through Thursday. Rising snow
levels will lead to a rain-on-snow event for elevations below 7,000
feet Monday night into Tuesday morning. Precipitation rates will
briefly decrease Tuesday afternoon before a second surge of moisture
arrives Tuesday night into Thursday. During the second surge, snow
levels will be lower initially, ranging from 3,500 to 5,000 feet
with some slushy snow accumulations across northwest Montana
valleys, but will then rise to 6,000 to 8,000 feet Wednesday into
Thursday. By Thursday, significant precipitation totals are
forecast, with 1 to 4 inches in the valleys and 5 to 8 inches in the
mountains, with locally higher totals over mountain crests.
Landslides in areas of steep terrain and minor flooding in urban and
poor-drainage areas are possible. Storm drains and ditches may
become clogged with debris. You may want to preemptively shovel snow
away from your homes. Watch basements for moisture intrusion.
$$
