Yellowstone National Park, Wyoming

Regional Weather Alerts


     

Alert: Avalanche Warning
Area(s): Absaroka/Beartooth Mountains
Effective: 2025-12-10 @ 6:37 am
Onset: 2025-12-10 @ 6:37 am -> 2025-12-11 @ 6:00 am
Severity: Unknown
Certainty: Unknown
Urgency: Unknown
Issued By: NWS Billings MT on 2025-12-10 @ 6:37 am
Headline: Avalanche Warning issued December 10 at 5:37AM MST by NWS Billings MT
Description: AVWBYZ

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.

Alert: Special Weather Statement
Area(s): Big Belt, Bridger and Castle Mountains; Meagher County Valleys; Elkhorn and Boulder Mountains; Canyon Ferry Area; Missouri Headwaters; Madison River Valley; Gallatin Valley; Northwest Beaverhead County; Beaverhead and Western Madison below 6000ft; Ruby Mountains and Southern Beaverhead Mountains; Gallatin and Madison County Mountains and Centennial Mountains
Effective: 2025-12-10 @ 6:25 am
Onset: 2025-12-10 @ 6:25 am -> 2025-12-10 @ 8:00 am
Severity: Moderate
Certainty: Observed
Urgency: Expected
Issued By: NWS Great Falls MT on 2025-12-10 @ 6:25 am
Headline: Special Weather Statement issued December 10 at 5:25AM MST by NWS Great Falls MT
Description: Scattered rain and snow showers are moving across Southwest MT
early this morning. Snow levels are generally above 4500 feet.
Thus the snow is mostly affecting passes right now, such as Elk
Park Pass and Boulder Hill on Interstate 15 and Homestake Pass on
I-90.

Those traveling early this morning should be alert for quickly
changing road conditions, especially if traveling over mountain
passes, along with areas of reduced visibility.

Alert: Winter Storm Watch
Area(s): Central and Southeast Phillips; Central and Southern Valley; Petroleum; Garfield; McCone; Dawson; Prairie; Northern Phillips; Southwest Phillips
Effective: 2025-12-10 @ 4:56 am -> 2025-12-13 @ 12:00 pm
Onset: 2025-12-11 @ 9:00 pm -> 2025-12-10 @ 5:00 pm
Severity: Severe
Certainty: Possible
Urgency: Future
Issued By: NWS Glasgow MT on 2025-12-10 @ 4:56 am
Headline: Winter Storm Watch issued December 10 at 3:56AM MST until December 13 at 11:00AM MST by NWS Glasgow MT
Description: * 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.

Alert: Winter Weather Advisory
Area(s): Daniels; Sheridan; Western Roosevelt; Richland; Wibaux; Northern Valley; Eastern Roosevelt
Effective: 2025-12-10 @ 4:56 am -> 2025-12-11 @ 9:00 pm
Onset: 2025-12-10 @ 5:00 am -> 2025-12-10 @ 5:00 pm
Severity: Moderate
Certainty: Likely
Urgency: Expected
Issued By: NWS Glasgow MT on 2025-12-10 @ 4:56 am
Headline: Winter Weather Advisory issued December 10 at 3:56AM MST until December 11 at 8:00PM MST by NWS Glasgow MT
Description: * WHAT...Mixed precipitation expected. Total snow accumulations
between 1 and 4 inches and ice accumulations up to one tenth of an
inch.

* WHERE...A portion of northeast Montana.

* WHEN...Until 8 PM MST Thursday.

* IMPACTS...Roads, and especially bridges and overpasses, will
likely become slick and hazardous. Plan on slippery road
conditions.

Alert: Winter Weather Advisory
Area(s): Central and Southeast Phillips; Central and Southern Valley; Petroleum; Garfield; McCone; Dawson; Prairie; Northern Phillips; Southwest Phillips
Effective: 2025-12-10 @ 4:56 am -> 2025-12-11 @ 9:00 pm
Onset: 2025-12-10 @ 5:00 am -> 2025-12-10 @ 5:00 pm
Severity: Moderate
Certainty: Likely
Urgency: Expected
Issued By: NWS Glasgow MT on 2025-12-10 @ 4:56 am
Headline: Winter Weather Advisory issued December 10 at 3:56AM MST until December 11 at 8:00PM MST by NWS Glasgow MT
Description: * 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.

Alert: High Wind Warning
Area(s): Judith Basin County and Judith Gap
Effective: 2025-12-10 @ 4:10 am -> 2025-12-11 @ 4:00 pm
Onset: 2025-12-10 @ 9:00 am -> 2025-12-10 @ 6:00 pm
Severity: Severe
Certainty: Likely
Urgency: Expected
Issued By: NWS Great Falls MT on 2025-12-10 @ 4:10 am
Headline: High Wind Warning issued December 10 at 3:10AM MST until December 11 at 3:00PM MST by NWS Great Falls MT
Description: * WHAT...West winds 30 to 40 mph with gusts up to 60 mph expected.

* WHERE...Judith Basin County and Judith Gap.

* WHEN...From 8 AM this morning to 3 PM MST Thursday.

* IMPACTS...Travel could be difficult, especially for high profile
vehicles.

Alert: High Wind Warning
Area(s): Eastern Glacier, Western Toole, and Central Pondera
Effective: 2025-12-10 @ 4:10 am -> 2025-12-10 @ 9:00 pm
Onset: 2025-12-10 @ 9:00 am -> 2025-12-10 @ 6:00 pm
Severity: Severe
Certainty: Likely
Urgency: Expected
Issued By: NWS Great Falls MT on 2025-12-10 @ 4:10 am
Headline: High Wind Warning issued December 10 at 3:10AM MST until December 10 at 8:00PM MST by NWS Great Falls MT
Description: * WHAT...West winds 30 to 40 mph, with gusts up to 70 mph expected.

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

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

* IMPACTS...Travel could be difficult, especially for high profile
vehicles.

Alert: High Wind Warning
Area(s): Northern High Plains; Southern High Plains
Effective: 2025-12-10 @ 4:10 am -> 2025-12-10 @ 9:00 pm
Onset: 2025-12-10 @ 9:00 am -> 2025-12-10 @ 6:00 pm
Severity: Severe
Certainty: Likely
Urgency: Expected
Issued By: NWS Great Falls MT on 2025-12-10 @ 4:10 am
Headline: High Wind Warning issued December 10 at 3:10AM MST until December 10 at 8:00PM MST by NWS Great Falls MT
Description: * WHAT...West winds 40 to 50 mph, with gusts up to 90 mph expected.

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

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

* IMPACTS...Travel could be difficult, especially for high profile
vehicles.

Alert: High Wind Warning
Area(s): Upper Blackfoot and MacDonald Pass
Effective: 2025-12-10 @ 4:10 am -> 2025-12-10 @ 9:00 pm
Onset: 2025-12-10 @ 9:00 am -> 2025-12-10 @ 6:00 pm
Severity: Severe
Certainty: Likely
Urgency: Expected
Issued By: NWS Great Falls MT on 2025-12-10 @ 4:10 am
Headline: High Wind Warning issued December 10 at 3:10AM MST until December 10 at 8:00PM MST by NWS Great Falls MT
Description: * WHAT...West winds 35 to 45 mph, with gusts up to 65 mph expected.

* WHERE...Upper Blackfoot and MacDonald Pass.

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

* IMPACTS...Travel could be difficult, especially for high profile
vehicles.

Alert: Winter Weather Advisory
Area(s): Upper Blackfoot and MacDonald Pass; Gates of the Mountains; Helena Valley
Effective: 2025-12-10 @ 4:05 am -> 2025-12-10 @ 12:00 pm
Onset: 2025-12-10 @ 4:05 am -> 2025-12-10 @ 12:00 pm
Severity: Moderate
Certainty: Likely
Urgency: Expected
Issued By: NWS Great Falls MT on 2025-12-10 @ 4:05 am
Headline: Winter Weather Advisory issued December 10 at 3:05AM MST until December 10 at 11:00AM MST by NWS Great Falls MT
Description: * WHAT...Snow and freezing rain expected. Total snow accumulations
up to one inch along with a light glace of ice.

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

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

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

Alert: Winter Weather Advisory
Area(s): Northern High Plains; Southern High Plains; Eastern Pondera and Eastern Teton; Western and Central Chouteau County; Cascade County below 5000ft; Judith Basin County and Judith Gap; Fergus County below 4500ft; Little Belt and Highwood Mountains; Snowy and Judith Mountains
Effective: 2025-12-10 @ 4:05 am -> 2025-12-10 @ 12:00 pm
Onset: 2025-12-10 @ 4:05 am -> 2025-12-10 @ 6:00 pm
Severity: Moderate
Certainty: Likely
Urgency: Expected
Issued By: NWS Great Falls MT on 2025-12-10 @ 4:05 am
Headline: Winter Weather Advisory issued December 10 at 3:05AM MST until December 10 at 11:00AM MST by NWS Great Falls MT
Description: * WHAT...For the Winter Weather Advisory, snow and freezing rain
expected. Total snow accumulations up to one inch along with a
light glace of ice. For the winter storm watch, heavy snow
possible. Total snow accumulations between 5 and 12 inches
possible across lower elevations, with locally higher amounts at
the higher mountain peaks. Winds could gust as high as 35 mph.

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

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

* IMPACTS...Roads, and especially bridges and overpasses, will
likely become slick and hazardous. Travel could be very difficult
and tire chains may be required for some vehicles. Those in the
backcountry should ensure they are prepared for dangerous
conditions. The hazardous conditions could impact the Wednesday
morning and evening commutes. Strong winds could cause tree damage.

Alert: Winter Storm Watch
Area(s): East Glacier Park Region; Southern Rocky Mountain Front
Effective: 2025-12-10 @ 4:05 am -> 2025-12-13 @ 6:00 am
Onset: 2025-12-11 @ 3:00 pm -> 2025-12-10 @ 6:00 pm
Severity: Severe
Certainty: Possible
Urgency: Future
Issued By: NWS Great Falls MT on 2025-12-10 @ 4:05 am
Headline: Winter Storm Watch issued December 10 at 3:05AM MST until December 13 at 5:00AM MST by NWS Great Falls MT
Description: * WHAT...For the Winter Weather Advisory, snow and freezing rain
expected. Total snow accumulations between 2 to 4 inches on Marias
Pass, and up to 7 inches at ridge tops. Light ice accumulations.
For the winter storm watch, heavy snow possible. Total snow
accumulations between 7 and 12 inches possible along Marias Pass,
with over a foot of snow at the higher peaks.

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

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

* IMPACTS...Roads, and especially bridges and overpasses, will
likely become slick and hazardous. Travel could be very difficult
and tire chains may be required for some vehicles. Those in the
backcountry should ensure they are prepared for dangerous
conditions. Very strong winds could cause extensive tree damage.

Alert: Winter Storm Watch
Area(s): Northern High Plains; Southern High Plains; Eastern Pondera and Eastern Teton; Western and Central Chouteau County; Cascade County below 5000ft; Judith Basin County and Judith Gap; Fergus County below 4500ft; Little Belt and Highwood Mountains; Snowy and Judith Mountains
Effective: 2025-12-10 @ 4:05 am -> 2025-12-13 @ 6:00 am
Onset: 2025-12-11 @ 3:00 pm -> 2025-12-10 @ 6:00 pm
Severity: Severe
Certainty: Possible
Urgency: Future
Issued By: NWS Great Falls MT on 2025-12-10 @ 4:05 am
Headline: Winter Storm Watch issued December 10 at 3:05AM MST until December 13 at 5:00AM MST by NWS Great Falls MT
Description: * WHAT...For the Winter Weather Advisory, snow and freezing rain
expected. Total snow accumulations up to one inch along with a
light glace of ice. For the winter storm watch, heavy snow
possible. Total snow accumulations between 5 and 12 inches
possible across lower elevations, with locally higher amounts at
the higher mountain peaks. Winds could gust as high as 35 mph.

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

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

* IMPACTS...Roads, and especially bridges and overpasses, will
likely become slick and hazardous. Travel could be very difficult
and tire chains may be required for some vehicles. Those in the
backcountry should ensure they are prepared for dangerous
conditions. The hazardous conditions could impact the Wednesday
morning and evening commutes. Strong winds could cause tree damage.

Alert: Winter Storm Watch
Area(s): Eastern Glacier, Western Toole, and Central Pondera; Eastern Toole and Liberty; Hill County; Northern Blaine County; Bears Paw Mountains and Southern Blaine
Effective: 2025-12-10 @ 4:05 am -> 2025-12-13 @ 6:00 am
Onset: 2025-12-11 @ 12:00 pm -> 2025-12-10 @ 6:00 pm
Severity: Severe
Certainty: Possible
Urgency: Future
Issued By: NWS Great Falls MT on 2025-12-10 @ 4:05 am
Headline: Winter Storm Watch issued December 10 at 3:05AM MST until December 13 at 5:00AM MST by NWS Great Falls MT
Description: * WHAT...For the Winter Weather Advisory, snow and freezing rain
expected. Total snow accumulations up to an inch along with a
light glace of ice. Snow accumulations up to 3 inches in the Bears
Paw Mountains. For the winter storm watch, heavy snow possible.
Total snow accumulations between 5 and 12 inches possible across
lower elevations, with locally higher amounts in the Bears Paws.

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

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

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

Alert: Winter Weather Advisory
Area(s): Eastern Glacier, Western Toole, and Central Pondera; Eastern Toole and Liberty; Hill County; Northern Blaine County; Bears Paw Mountains and Southern Blaine
Effective: 2025-12-10 @ 4:05 am -> 2025-12-10 @ 12:00 pm
Onset: 2025-12-10 @ 4:05 am -> 2025-12-10 @ 6:00 pm
Severity: Moderate
Certainty: Likely
Urgency: Expected
Issued By: NWS Great Falls MT on 2025-12-10 @ 4:05 am
Headline: Winter Weather Advisory issued December 10 at 3:05AM MST until December 10 at 11:00AM MST by NWS Great Falls MT
Description: * WHAT...For the Winter Weather Advisory, snow and freezing rain
expected. Total snow accumulations up to an inch along with a
light glace of ice. Snow accumulations up to 3 inches in the Bears
Paw Mountains. For the winter storm watch, heavy snow possible.
Total snow accumulations between 5 and 12 inches possible across
lower elevations, with locally higher amounts in the Bears Paws.

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

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

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

Alert: Winter Weather Advisory
Area(s): East Glacier Park Region; Southern Rocky Mountain Front
Effective: 2025-12-10 @ 4:05 am -> 2025-12-10 @ 12:00 pm
Onset: 2025-12-10 @ 4:05 am -> 2025-12-10 @ 6:00 pm
Severity: Moderate
Certainty: Likely
Urgency: Expected
Issued By: NWS Great Falls MT on 2025-12-10 @ 4:05 am
Headline: Winter Weather Advisory issued December 10 at 3:05AM MST until December 10 at 11:00AM MST by NWS Great Falls MT
Description: * WHAT...For the Winter Weather Advisory, snow and freezing rain
expected. Total snow accumulations between 2 to 4 inches on Marias
Pass, and up to 7 inches at ridge tops. Light ice accumulations.
For the winter storm watch, heavy snow possible. Total snow
accumulations between 7 and 12 inches possible along Marias Pass,
with over a foot of snow at the higher peaks.

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

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

* IMPACTS...Roads, and especially bridges and overpasses, will
likely become slick and hazardous. Travel could be very difficult
and tire chains may be required for some vehicles. Those in the
backcountry should ensure they are prepared for dangerous
conditions. Very strong winds could cause extensive tree damage.

Alert: Winter Weather Advisory
Area(s): Bighorn Canyon; Sheridan Foothills
Effective: 2025-12-10 @ 2:42 am -> 2025-12-10 @ 6:00 pm
Onset: 2025-12-10 @ 9:00 am -> 2025-12-10 @ 6:00 pm
Severity: Moderate
Certainty: Likely
Urgency: Expected
Issued By: NWS Billings MT on 2025-12-10 @ 2:42 am
Headline: Winter Weather Advisory issued December 10 at 1:42AM MST until December 10 at 5:00PM MST by NWS Billings MT
Description: * 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.

Alert: Winter Weather Advisory
Area(s): Red Lodge Foothills; Beartooth Foothills; Northern Carbon
Effective: 2025-12-10 @ 2:42 am -> 2025-12-10 @ 12:00 pm
Onset: 2025-12-10 @ 6:00 am -> 2025-12-10 @ 12:00 pm
Severity: Moderate
Certainty: Likely
Urgency: Expected
Issued By: NWS Billings MT on 2025-12-10 @ 2:42 am
Headline: Winter Weather Advisory issued December 10 at 1:42AM MST until December 10 at 11:00AM MST by NWS Billings MT
Description: * 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.

Alert: Winter Storm Watch
Area(s): Musselshell; Northern Stillwater; Golden Valley; Judith Gap; Northern Sweet Grass; Melville Foothills; Northeastern Yellowstone; Southern Wheatland; Southwestern Yellowstone
Effective: 2025-12-10 @ 2:42 am -> 2025-12-13 @ 12:00 pm
Onset: 2025-12-11 @ 3:00 pm -> 2025-12-11 @ 2:45 am
Severity: Severe
Certainty: Possible
Urgency: Future
Issued By: NWS Billings MT on 2025-12-10 @ 2:42 am
Headline: Winter Storm Watch issued December 10 at 1:42AM MST until December 13 at 11:00AM MST by NWS Billings MT
Description: * 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.

Alert: Winter Storm Watch
Area(s): Crazy Mountains
Effective: 2025-12-10 @ 2:42 am -> 2025-12-13 @ 12:00 pm
Onset: 2025-12-11 @ 3:00 pm -> 2025-12-11 @ 2:45 am
Severity: Severe
Certainty: Possible
Urgency: Future
Issued By: NWS Billings MT on 2025-12-10 @ 2:42 am
Headline: Winter Storm Watch issued December 10 at 1:42AM MST until December 13 at 11:00AM MST by NWS Billings MT
Description: * 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.

Alert: Winter Storm Watch
Area(s): Fallon; Carter
Effective: 2025-12-10 @ 2:42 am -> 2025-12-13 @ 12:00 pm
Onset: 2025-12-11 @ 3:00 pm -> 2025-12-11 @ 2:45 am
Severity: Severe
Certainty: Possible
Urgency: Future
Issued By: NWS Billings MT on 2025-12-10 @ 2:42 am
Headline: Winter Storm Watch issued December 10 at 1:42AM MST until December 13 at 11:00AM MST by NWS Billings MT
Description: * WHAT...For the Winter Weather Advisory, mixed precipitation
expected today. Total snow accumulations less than 1 inch. A light
glaze of ice is possible with freezing rain. For the Winter Storm
Watch, heavy snow possible. Total snow accumulations between 3 and
7 inches possible.

* WHERE...Carter and Fallon.

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

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

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

Alert: Winter Storm Watch
Area(s): Treasure; Northern Rosebud; Custer; Powder River; Northern Big Horn; Southern Rosebud; Southern Big Horn
Effective: 2025-12-10 @ 2:42 am -> 2025-12-13 @ 12:00 pm
Onset: 2025-12-11 @ 3:00 pm -> 2025-12-11 @ 2:45 am
Severity: Severe
Certainty: Possible
Urgency: Future
Issued By: NWS Billings MT on 2025-12-10 @ 2:42 am
Headline: Winter Storm Watch issued December 10 at 1:42AM MST until December 13 at 11:00AM MST by NWS Billings MT
Description: * 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.

Alert: Winter Storm Warning
Area(s): Absaroka/Beartooth Mountains
Effective: 2025-12-10 @ 2:42 am -> 2025-12-10 @ 6:00 pm
Onset: 2025-12-10 @ 2:42 am -> 2025-12-10 @ 6:00 pm
Severity: Severe
Certainty: Likely
Urgency: Expected
Issued By: NWS Billings MT on 2025-12-10 @ 2:42 am
Headline: Winter Storm Warning issued December 10 at 1:42AM MST until December 10 at 5:00PM MST by NWS Billings MT
Description: * 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.

Alert: Winter Weather Advisory
Area(s): Treasure; Northern Rosebud; Custer; Powder River; Northern Big Horn; Southern Rosebud; Southern Big Horn
Effective: 2025-12-10 @ 2:42 am -> 2025-12-10 @ 6:00 pm
Onset: 2025-12-10 @ 9:00 am -> 2025-12-11 @ 2:45 am
Severity: Moderate
Certainty: Likely
Urgency: Expected
Issued By: NWS Billings MT on 2025-12-10 @ 2:42 am
Headline: Winter Weather Advisory issued December 10 at 1:42AM MST until December 10 at 5:00PM MST by NWS Billings MT
Description: * 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.

Alert: Winter Weather Advisory
Area(s): Fallon; Carter
Effective: 2025-12-10 @ 2:42 am -> 2025-12-10 @ 9:00 pm
Onset: 2025-12-10 @ 3:00 pm -> 2025-12-11 @ 2:45 am
Severity: Moderate
Certainty: Likely
Urgency: Expected
Issued By: NWS Billings MT on 2025-12-10 @ 2:42 am
Headline: Winter Weather Advisory issued December 10 at 1:42AM MST until December 10 at 8:00PM MST by NWS Billings MT
Description: * WHAT...For the Winter Weather Advisory, mixed precipitation
expected today. Total snow accumulations less than 1 inch. A light
glaze of ice is possible with freezing rain. For the Winter Storm
Watch, heavy snow possible. Total snow accumulations between 3 and
7 inches possible.

* WHERE...Carter and Fallon.

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

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

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

Alert: Winter Weather Advisory
Area(s): Musselshell; Northern Stillwater; Golden Valley; Judith Gap; Northern Sweet Grass; Melville Foothills; Northeastern Yellowstone; Southern Wheatland; Southwestern Yellowstone
Effective: 2025-12-10 @ 2:42 am -> 2025-12-10 @ 12:00 pm
Onset: 2025-12-10 @ 6:00 am -> 2025-12-11 @ 2:45 am
Severity: Moderate
Certainty: Likely
Urgency: Expected
Issued By: NWS Billings MT on 2025-12-10 @ 2:42 am
Headline: Winter Weather Advisory issued December 10 at 1:42AM MST until December 10 at 11:00AM MST by NWS Billings MT
Description: * 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.

Alert: Wind Advisory
Area(s): Livingston Area; Beartooth Foothills
Effective: 2025-12-10 @ 2:20 am -> 2025-12-11 @ 6:00 pm
Onset: 2025-12-10 @ 12:00 pm -> 2025-12-11 @ 2:30 am
Severity: Moderate
Certainty: Likely
Urgency: Expected
Issued By: NWS Billings MT on 2025-12-10 @ 2:20 am
Headline: Wind Advisory issued December 10 at 1:20AM MST until December 11 at 5:00PM MST by NWS Billings MT
Description: * 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.

Alert: High Wind Warning
Area(s): Judith Gap; Northern Sweet Grass; Melville Foothills; Southern Wheatland
Effective: 2025-12-10 @ 2:20 am -> 2025-12-11 @ 6:00 pm
Onset: 2025-12-10 @ 3:00 pm -> 2025-12-11 @ 2:30 am
Severity: Severe
Certainty: Likely
Urgency: Expected
Issued By: NWS Billings MT on 2025-12-10 @ 2:20 am
Headline: High Wind Warning issued December 10 at 1:20AM MST until December 11 at 5:00PM MST by NWS Billings MT
Description: * 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.

Alert: Wind Advisory
Area(s): Butte/Blackfoot Region
Effective: 2025-12-10 @ 2:16 am -> 2025-12-10 @ 8:00 pm
Onset: 2025-12-10 @ 9:00 am -> 2025-12-10 @ 8:00 pm
Severity: Moderate
Certainty: Likely
Urgency: Expected
Issued By: NWS Missoula MT on 2025-12-10 @ 2:16 am
Headline: Wind Advisory issued December 10 at 1:16AM MST until December 10 at 7:00PM MST by NWS Missoula MT
Description: * 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.

Alert: Wind Advisory
Area(s): Missoula/Bitterroot Valleys
Effective: 2025-12-10 @ 2:16 am -> 2025-12-10 @ 8:00 pm
Onset: 2025-12-10 @ 9:00 am -> 2025-12-10 @ 8:00 pm
Severity: Moderate
Certainty: Likely
Urgency: Expected
Issued By: NWS Missoula MT on 2025-12-10 @ 2:16 am
Headline: Wind Advisory issued December 10 at 1:16AM MST until December 10 at 7:00PM MST by NWS Missoula MT
Description: * 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.

Alert: Avalanche Warning
Area(s): Kootenai/Cabinet Region
Effective: 2025-12-09 @ 10:04 am
Onset: 2025-12-09 @ 10:04 am -> 2025-12-10 @ 10:00 am
Severity: Unknown
Certainty: Unknown
Urgency: Unknown
Issued By: NWS Missoula MT on 2025-12-09 @ 10:04 am
Headline: Avalanche Warning issued December 9 at 9:04AM MST by NWS Missoula MT
Description: AVWMSO

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)

* WHAT...THIS IS ONLY A TEST - DISREGARD. WE'RE ATTEMPTING TO TROUBLESHOOT
EMAIL SENDING ERRORS.

* WHERE...THIS IS ONLY A TEST - DISREGARD. WE'RE ATTEMPTING TO TROUBLESHOOT
EMAIL SENDING ERRORS.

* WHEN...In effect from Mon 16:00 PST to Tue 16:00 PST.

* IMPACTS...THIS IS ONLY A TEST - DISREGARD. WE'RE ATTEMPTING TO
TROUBLESHOOT EMAIL SENDING ERRORS.

* PRECAUTIONARY / PREPAREDNESS ACTIONS...THIS IS ONLY A TEST - DISREGARD.
WE'RE ATTEMPTING TO TROUBLESHOOT EMAIL SENDING ERRORS.

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.

Alert: Winter Weather Advisory
Area(s): West Glacier Region; Potomac/Seeley Lake Region
Effective: 2025-12-09 @ 1:42 am -> 2025-12-10 @ 12:00 pm
Onset: 2025-12-10 @ 1:00 am -> 2025-12-10 @ 12:00 pm
Severity: Moderate
Certainty: Likely
Urgency: Expected
Issued By: NWS Missoula MT on 2025-12-09 @ 1:42 am
Headline: Winter Weather Advisory issued December 9 at 12:42AM MST until December 10 at 11:00AM MST by NWS Missoula MT
Description: * 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

Alert: Hydrologic Outlook
Area(s): Granite, MT; Missoula, MT; Ravalli, MT
Effective: 2025-12-08 @ 2:22 pm
Onset: 2025-12-08 @ 2:22 pm -> 2025-12-10 @ 3:00 pm
Severity: Unknown
Certainty: Possible
Urgency: Future
Issued By: NWS Missoula MT on 2025-12-08 @ 2:22 pm
Headline: Hydrologic Outlook issued December 8 at 1:22PM MST by NWS Missoula MT
Description: ESFMSO

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.

Alert: Flood Watch
Area(s): Mineral, MT
Effective: 2025-12-08 @ 1:53 pm -> 2025-12-11 @ 6:00 pm
Onset: 2025-12-08 @ 6:00 pm -> 2025-12-09 @ 3:15 pm
Severity: Severe
Certainty: Possible
Urgency: Future
Issued By: NWS Missoula MT on 2025-12-08 @ 1:53 pm
Headline: Flood Watch issued December 8 at 12:53PM MST until December 11 at 5:00PM MST by NWS Missoula MT
Description: 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.

* 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

Alert: Flood Watch
Area(s): Flathead, MT; Lake, MT; Lincoln, MT; Sanders, MT
Effective: 2025-12-08 @ 1:53 pm -> 2025-12-11 @ 6:00 pm
Onset: 2025-12-08 @ 6:00 pm -> 2025-12-09 @ 3:15 pm
Severity: Severe
Certainty: Possible
Urgency: Future
Issued By: NWS Missoula MT on 2025-12-08 @ 1:53 pm
Headline: Flood Watch issued December 8 at 12:53PM MST until December 11 at 5:00PM MST by NWS Missoula MT
Description: 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.

* 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