Winter Weather Advisory
* WHAT...Snow expected. Total snow accumulations of 1 to 3 inches.
Winds gusting as high as 40 mph.
* WHERE...Beartooth Foothills and Red Lodge Foothills.
* WHEN...From 8 AM this morning to 11 PM MST this evening.
* IMPACTS...Roads may become slick and visibility may be reduced in
falling and blowing snow.
* ADDITIONAL DETAILS...Temperatures are expected to fall during the
afternoon behind a strong cold front. Wet roads from melting snow
may freeze and become hazardous late today into the evening. This
includes US-212, US-310 and Highway 78.
From: Dec 27, 2025 08:03
Until: Dec 28, 2025 06:00
Winter Weather Advisory
* WHAT...Snow and blowing snow. Total snow accumulations of 1 to 3
inches, greatest near the mountains and over the higher hills.
Winds gusting as high as 35 mph.
* WHERE...In Montana, Bighorn Canyon and Southern Big Horn. In
Wyoming, Sheridan Foothills.
* WHEN...Until 11 PM MST this evening.
* IMPACTS...Roads may become slick and visibility may be reduced in
falling and blowing snow.
* ADDITIONAL DETAILS...Temperatures will fall this afternoon and
evening behind a cold front. Wet roads from melting snow may freeze
and become hazardous. This includes Interstate 90 through Sheridan
and Highway 14 into the Bighorn Mountains.
From: Dec 27, 2025 20:57
Until: Dec 28, 2025 06:00
Winter Weather Advisory
* WHAT...Snow and slick roads expected. Total snow accumulations up
to two inches. Winds gusting as high as 35 mph.
* WHERE...In Montana, Bighorn Canyon and Southern Big Horn. In
Wyoming, Sheridan Foothills.
* WHEN...From 11 AM this morning to 11 PM MST this evening.
* IMPACTS...Roads, and especially bridges and overpasses, may become
slick and hazardous.
* ADDITIONAL DETAILS...Temperatures are expected to fall during the
afternoon behind a strong cold front. Wet roads from melting snow
may freeze and become hazardous late today into the evening. This
includes I-90 through Sheridan.
From: Dec 27, 2025 08:03
Until: Dec 28, 2025 06:00
Winter Weather Advisory
* WHAT...Snow. Total snow accumulations of 1 to 3 inches, greatest
near the mountains. Winds gusting as high as 25 mph.
* WHERE...Beartooth Foothills and Red Lodge Foothills.
* WHEN...Until 11 PM MST this evening.
* IMPACTS...Roads may become slick and visibility may be reduced in
falling and blowing snow.
* ADDITIONAL DETAILS...Temperatures will fall this afternoon and
evening behind a cold front. Wet roads from melting snow may freeze
and become hazardous. This includes Highway 212, Highway 310, and
Highway 78.
From: Dec 27, 2025 20:57
Until: Dec 28, 2025 06:00
Winter Weather Advisory
* WHAT...Snow expected. Total snow accumulations of 1 to 4 inches,
with locally higher amounts. Winds gusting as high as 45 mph.
* WHERE...Beartooth Foothills and Red Lodge Foothills.
* WHEN...From 8 AM to 11 PM MST Saturday.
* IMPACTS...Roads may quickly become slick, with falling
temperatures.
* ADDITIONAL DETAILS...The majority of accumulations will fall
Saturday afternoon and evening.
From: Dec 26, 2025 21:52
Until: Dec 27, 2025 22:00
Avalanche Warning
AVWBYZ
The Gallatin National Forest Avalanche Center has extended the
avalanche warning.
* WHAT... The avalanche danger is HIGH on all slopes. Natural and
human-triggered slides are very likely.
* WHERE...The mountains near Cooke City.
* WHEN...In effect through Wednesday 530 AM MST.
* IMPACTS...Non-stop heavy snowfall will make human triggered
avalanches very likely.
* PRECAUTIONARY / PREPAREDNESS ACTIONS...Over 2 weeks of
relentless snowfall has created very dangerous avalanche
conditions. Avoid ALL avalanche terrain including avalanche
runout zones. Avalanches can be triggered from flat terrain and
come crashing down.
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.
From: Dec 23, 2025 12:53
Until: Dec 24, 2025 13:00
Avalanche Warning
AVWBYZ
The Gallatin National Forest Avalanche Center has issued an
avalanche warning.
* WHAT... The avalanche danger is HIGH on all slopes. Natural and
human-triggered slides are very likely.
* WHERE...The mountains near Island Park, West Yellowstone and
Cooke City
* WHEN...In effect through Tuesday 530 AM MST.
* IMPACTS...Heavy snowfall on a snowpack with unstable weak layers
will make human triggered avalanches very likely.
* PRECAUTIONARY / PREPAREDNESS ACTIONS...Very dangerous avalanche
conditions exist. Backcountry travelers should stay off steep
slopes and away from the bottom of steep slopes. Avalanches can
be triggered from flat terrain. Steep slopes can avalanche far
above and run into lower-angled terrain.
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.
From: Dec 22, 2025 12:29
Until: Dec 23, 2025 12:30
Winter Storm Warning
* WHAT...Heavy snow occurring. Additional snow accumulations of 4 to
8 inches expected. Winds gusting as high as 40 mph.
* WHERE...Absaroka/Beartooth Mountains.
* WHEN...Until 5 AM MST Tuesday.
* IMPACTS...Recreation in the high country will be impacted by heavy
accumulating snow and blowing snow.
* ADDITIONAL DETAILS...Avalanche danger will continue.
From: Dec 23, 2025 02:28
Until: Dec 23, 2025 12:00
Winter Storm Warning
* WHAT...Heavy snow occurring. Additional snow accumulations of 5 to
10 inches expected. Winds gusting as high as 40 mph.
* WHERE...Absaroka/Beartooth Mountains.
* WHEN...Until 5 AM MST Tuesday.
* IMPACTS...Recreation in the high country will be impacted by heavy
accumulating snow and blowing snow.
* ADDITIONAL DETAILS...Avalanche danger will continue.
From: Dec 22, 2025 20:39
Until: Dec 23, 2025 12:00
Winter Storm Warning
* WHAT...Periods of heavy snow. Total snow accumulations of 1 to 3
feet in the Absaroka-Beartooth Mountains and 8 to 15 inches in the
Crazy Mountains, mainly on south and west facing slopes. Winds
gusting as high as 40 mph.
* WHERE...Absaroka/Beartooth Mountains and Crazy Mountains.
* WHEN...Until 5 PM MST this afternoon.
* IMPACTS...Recreation in the high country will be impacted by heavy
accumulating snow and blowing snow.
* ADDITIONAL DETAILS...Avalanche danger will continue.
From: Dec 22, 2025 11:33
Until: Dec 23, 2025 00:00
Winter Storm Warning
* WHAT...Periods of heavy snow. Total snow accumulations of 1 to 3
feet in the Absaroka-Beartooth Mountains and 8 to 15 inches in the
Crazy Mountains, mainly on south and west facing slopes. Winds
gusting as high as 45 mph.
* WHERE...Absaroka/Beartooth Mountains and Crazy Mountains.
* WHEN...Until 5 PM MST Monday.
* IMPACTS...Recreation in the high country will be impacted by heavy
accumulating snow and blowing snow.
* ADDITIONAL DETAILS...Avalanche danger will continue.
From: Dec 21, 2025 23:28
Until: Dec 22, 2025 23:30
Winter Weather Advisory
* WHAT...Mixed precipitation, possibly including freezing rain or
drizzle. Snow accumulations up to an 1 inch.
* WHERE...Portions of central and south central Montana.
* WHEN...Until 9 AM MST this morning.
* IMPACTS...Roads, and especially bridges and overpasses, will likely
become slick and hazardous.
* ADDITIONAL DETAILS...Motorists along Interstate 90 around the Big
Timber area, along Highway 191 from Big Timber to Judith Gap, and
along Highway 89 around Clyde Park and Wilsall, should be alert for
sudden changes in driving conditions and slick roads.
From: Dec 22, 2025 11:33
Until: Dec 22, 2025 16:00
Winter Weather Advisory
* WHAT...Mixed precipitation, including light freezing rain or
drizzle. Snow accumulations up to one inch and a light glaze of ice
possible.
* WHERE...Golden Valley, Musselshell, and Northern Stillwater.
* WHEN...Until 9 AM MST this morning.
* IMPACTS...Roads will likely become slick and hazardous.
* ADDITIONAL DETAILS...Motorists should be alert for sudden changes
in driving conditions and slick roads.
From: Dec 22, 2025 11:33
Until: Dec 22, 2025 16:00
Special Weather Statement
At 518 AM MST, Doppler radar was tracking an area of wintry
precipitation with areas of freezing rain.
Locations impacted include...
Billings, Custer, Laurel, Joliet, Lockwood, Huntley, Shepherd,
Worden, Ballantine, Broadview, Pompeys Pillar, and Boyd. This
includes portions of the following roadways: I-90, I-94, US-212,
US-87, and MT-3
Ice forms more rapidly on bridges and overpasses.
From: Dec 22, 2025 12:18
Until: Dec 22, 2025 15:00
Avalanche Warning
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:
* WHAT...The Gallatin National Forest Avalanche Center is issuing
an avalanche warning. The avalanche danger is HIGH on all
slopes. Natural and human-triggered slides are very likely.
* WHERE...The mountains near Island Park, West Yellowstone and Cooke City.
* WHEN...In effect until Mon 05:30 AM MST.
* IMPACTS...Heavy snowfall on a snowpack with unstable weak layers
will make human triggered avalanches very likely.
* PRECAUTIONARY / PREPAREDNESS ACTIONS...Very dangerous avalanche
conditions exist. Backcountry travelers should stayoff steep
slopes and away from the bottom of steep slopes. Avalanches can
be triggered from flat terrain. Steep slopes can avalanche far
above and run into lower-angled terrain.
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.
From: Dec 21, 2025 13:04
Until: Dec 22, 2025 13:15
Winter Weather Advisory
* WHAT...Mixed precipitation, including freezing rain. Snow
accumulations up to 2 inches and ice accumulations up to 0.05
inches possible.
* WHERE...Portions of central and south central Montana.
* WHEN...Until 5 AM MST Monday.
* IMPACTS...Roads, and especially bridges and overpasses, will likely
become slick and hazardous.
* ADDITIONAL DETAILS...Motorists along Interstate 90 around the Big
Timber area, along Highway 191 from Big Timber to Judith Gap, and
along Highway 89 around Clyde Park and Wilsall, should be alert for
sudden changes in driving conditions and slick roads this evening
into tonight.
From: Dec 21, 2025 23:28
Until: Dec 22, 2025 12:00
Winter Weather Advisory
* WHAT...Mixed precipitation, including light freezing rain. Snow
accumulations up to one inch and ice accumulations around a light
glaze possible.
* WHERE...Golden Valley, Musselshell, and Northern Stillwater.
* WHEN...Until 5 AM MST Monday.
* IMPACTS...Roads will likely become slick and hazardous.
* ADDITIONAL DETAILS...Motorists should be alert for sudden changes
in driving conditions and slick roads this evening into tonight.
From: Dec 21, 2025 23:28
Until: Dec 22, 2025 12:00
Winter Storm Warning
* WHAT...Periods of heavy snow. Total snow accumulations of 1 to 3
feet, mainly on south and west facing slopes. Winds gusting as high
as 40 mph.
* WHERE...Absaroka/Beartooth Mountains and Crazy Mountains.
* WHEN...Until 5 PM MST Monday.
* IMPACTS...Recreation in the high country will be impacted by heavy
accumulating snow and blowing snow.
* ADDITIONAL DETAILS...Avalanche danger will continue.
From: Dec 21, 2025 10:04
Until: Dec 22, 2025 10:15
Winter Weather Advisory
* WHAT...Rain and snow showers expected with areas of freezing rain
or drizzle possible. Total snow accumulations up to one inch and
ice accumulations around a light glaze. Winds gusting as high as 30
mph.
* WHERE...Portions of central and south central Montana.
* WHEN...From 2 PM this afternoon to 5 AM MST Monday.
* IMPACTS...Roads, and especially bridges and overpasses, could
become slick and hazardous.
* ADDITIONAL DETAILS...Motorists along I-90 around the Big Timber
area, and along US-191 from Big Timber to Harlowton, should be
alert for sudden changes in driving conditions and slick roads late
today through the evening.
From: Dec 21, 2025 10:04
Until: Dec 22, 2025 10:15
Winter Storm Warning
* WHAT...Periods of heavy snow. Total snow accumulations of 1 to 2
feet, mainly on south and west facing slopes. Winds gusting as high
as 45 mph.
* WHERE...Absaroka/Beartooth Mountains.
* WHEN...From 5 AM Sunday to 5 PM MST Monday.
* IMPACTS...Recreation in the high country will be impacted by heavy
accumulating snow and blowing snow.
* ADDITIONAL DETAILS...Avalanche danger will continue.
From: Dec 20, 2025 21:13
Until: Dec 21, 2025 21:15
Avalanche Warning
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: The
mountains near Cooke City.
* WHAT...Avalanche conditions are very dangerous and the
avalanche danger is HIGH.
* WHERE...The mountains near Cooke City.
* WHEN...In effect from Fri 18:00 MST to Sun 05:30 MST.
* IMPACTS...Heavy snowfall Thursday and Friday combined with winds
gusting to 70 mph has created very dangerous avalanche
conditions
* PRECAUTIONARY / PREPAREDNESS ACTIONS...Avalanches near Cooke
City will be massive and can run far distances. Avoid slopes
steeper than 30 degrees and stay far away from avalanche runout
zones.
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.
From: Dec 20, 2025 01:46
Until: Dec 21, 2025 11:30
Winter Storm Watch
* WHAT...Heavy snow possible. Total snow accumulations 12 to 24
inches, mainly on west facing slopes. Winds could gust as high as
40 mph.
* WHERE...Absaroka/Beartooth Mountains.
* WHEN...From Sunday morning through Monday afternoon.
* IMPACTS...Recreation in the high country could be impacted by heavy
accumulating snow and blowing snow.
From: Dec 20, 2025 09:47
Until: Dec 21, 2025 10:00
Winter Storm Warning
* WHAT...Periods of heavy snow. Additional snow accumulations of 5 to
10 inches. Winds gusting as high as 50 mph.
* WHERE...Absaroka/Beartooth Mountains.
* WHEN...Until 5 AM MST Saturday.
* IMPACTS...Recreation in the high country will be impacted by heavy
accumulating snow and blowing snow. Avalanche danger will increase.
* ADDITIONAL DETAILS...Expect the winds and snow to gradually
decrease tonight.
From: Dec 19, 2025 22:36
Until: Dec 20, 2025 12:00
Winter Weather Advisory
* WHAT...Snow. Total snow accumulations of 1 to 3 inches. Winds
gusting as high as 30 mph.
* WHERE...Beartooth Foothills and Red Lodge Foothills.
* WHEN...Until midnight MST tonight.
* IMPACTS...Plan on slippery road conditions. Blowing snow could
reduce visibility. The hazardous conditions will impact this
evening's commute.
* ADDITIONAL DETAILS...Precipitation may start as rain, before
quickly transitioning to snow.
From: Dec 19, 2025 22:36
Until: Dec 20, 2025 07:00
