Winter Storm Warning/Watch/Advisory
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Note: Be sure to pay close attention to the date and time of each warning.
This document contains all warnings in the state so please read the
complete document.
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WWUS45 KBYZ 091829
WSWBYZ
URGENT - WINTER WEATHER MESSAGE
National Weather Service Billings MT
1229 PM MDT Mon Mar 9 2026
MTZ029-031-042-100300-
/O.NEW.KBYZ.WW.Y.0010.260309T1829Z-260310T0300Z/
Musselshell-Northern Rosebud-Golden Valley-
Including the locations of Melstone, Lavina, Forsyth, Colstrip,
Ryegate, Musselshell, Angela, Ingomar, and Roundup
1229 PM MDT Mon Mar 9 2026
...WINTER WEATHER ADVISORY IN EFFECT UNTIL 9 PM MDT THIS EVENING...
* WHAT...Snow occurring. Total snow accumulations of 2 to 6 inches,
with locally heavier amounts possible.
* WHERE...Golden Valley, Musselshell, and Northern Rosebud.
* WHEN...Until 9 PM MDT this evening.
* IMPACTS...Plan on slick and snow covered road conditions. The
hazardous conditions will impact the Monday evening commute.
* ADDITIONAL DETAILS...Mesonet observations show 1 to 4 inches of
snow has fallen in the advisory area. The heaviest snowfall will be
along and north of US-12.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Slow down and use caution while traveling. For the latest road
conditions, call 5 1 1.
Be prepared for slick 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 slick,
increasing your risk of a fall and injury.
&&
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MTZ138-WYZ199-101830-
/O.CON.KBYZ.WW.Y.0009.260310T0600Z-260311T1400Z/
Southern Big Horn-Sheridan Foothills-
Including the locations of Wyola, Ranchester, Clearmont, Big Horn,
Sheridan, Pryor, Dayton, and Lodge Grass
1229 PM MDT Mon Mar 9 2026
...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO
8 AM MDT WEDNESDAY...
* WHAT...Snow expected. Total snow accumulations between 1 and 4
inches.
* WHERE...In Montana, Southern Big Horn. In Wyoming, Sheridan
Foothills.
* WHEN...From midnight tonight to 8 AM MDT Wednesday.
* IMPACTS...Plan on slick road conditions. The hazardous conditions
will impact the Tuesday morning and evening commutes.
* ADDITIONAL DETAILS...Precipitation will begin as rain this evening.
Roads will become slick as temperatures fall tonight. Heaviest
snowfall is expected during the day Tuesday.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Slow down and use caution while traveling. For the latest road
conditions, call 5 1 1.
Be prepared for slick 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 slick,
increasing your risk of a fall and injury.
&&
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WYZ198-101830-
/O.CON.KBYZ.WW.Y.0009.260310T0600Z-260311T1400Z/
Northeast Bighorn Mountains-
Including the locations of Story and Burgess Jct
1229 PM MDT Mon Mar 9 2026
...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO
8 AM MDT WEDNESDAY...
* WHAT...Snow expected. Total snow accumulations between 4 and 8
inches.
* WHERE...Northeast Bighorn Mountains.
* WHEN...From midnight tonight to 8 AM MDT Wednesday.
* IMPACTS...Travel could be difficult along US 14. Recreation in the
high country will be impacted.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Be prepared for wintry conditions in the high country.
&&
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Additional graphics for this hazard can be found at
http://www.weather.gov/billings
Chambers
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WWUS45 KGGW 091843
WSWGGW
URGENT - WINTER WEATHER MESSAGE
National Weather Service Glasgow MT
1243 PM MDT Mon Mar 9 2026
MTZ021-022-026-100300-
/O.NEW.KGGW.WW.Y.0008.260309T1843Z-260310T0300Z/
Petroleum-Garfield-Prairie-
Including Winnett, Jordan, and Terry
1243 PM MDT Mon Mar 9 2026
...WINTER WEATHER ADVISORY IN EFFECT UNTIL 9 PM MDT THIS EVENING...
* WHAT...Snow. Additional snow accumulations of 1 to 2 inches.
* WHERE...Garfield, Petroleum, and Prairie Counties.
* WHEN...Until 9 PM MDT this evening.
* IMPACTS...Plan on slippery road conditions. The hazardous
conditions could impact the Monday evening commute.
* ADDITIONAL DETAILS...A band of snow has persisted more than
expected today with additional accumulations likely to lead to
travel difficulties.
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.
&&
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Maliawco
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WWUS45 KMSO 091835
WSWMSO
URGENT - WINTER WEATHER MESSAGE
National Weather Service Missoula MT
1235 PM MDT Mon Mar 9 2026
IDZ006-102100-
/O.NEW.KMSO.WS.A.0002.260312T0000Z-260314T1800Z/
Southern Clearwater Mountains-
1135 AM PDT Mon Mar 9 2026
...WINTER STORM WATCH IN EFFECT FROM WEDNESDAY AFTERNOON THROUGH
SATURDAY MORNING ABOVE 5000 FEET...
* WHAT...Heavy snow and blowing snow possible above 5000 feet. There
is a chance of major winter weather impacts. Total snow
accumulations between 1 to 3 feet. Wind gusts of 40 to 60 mph.
* WHERE...US Highway 12 over Lolo Pass, Dixie, and backcountry areas.
* WHEN...From Wednesday afternoon through Saturday morning.
* IMPACTS...Visibilities may drop below 1/4 mile due to falling and
blowing snow. The strong winds and weight of snow on tree limbs
may down power lines and could cause sporadic power outages.
Whiteout and blizzard conditions are possible in backcountry areas
and may make travel treacherous and potentially life-threatening.
For MAJOR winter weather impacts, expect considerable disruptions
to normal activities. Dangerous or impossible traveling
conditions. Widespread closures and disruptions to infrastructure
may occur. Strong winds could cause tree damage.
* ADDITIONAL DETAILS...Snow levels will be climbing Wednesday into
Thursday afternoon, reaching as high as 5,000 feet near Lolo Pass
and 6,000 feet across the southern Clearwater Mountains. The worst
travel conditions are expected during the overnight and early
morning periods.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Monitor the latest forecasts for updates on this situation.
Persons should consider delaying all travel. If travel is absolutely
necessary, drive with extreme caution. Consider taking a winter
storm kit along with you, including such items as tire chains,
booster cables, flashlight, shovel, blankets and extra clothing.
Also take water, a first aid kit, and anything else that would help
you survive in case you become stranded.
Do not touch downed lines and report any power outages to your
electric company. Travel is highly discouraged due to slick roadways
and the possibility of downed trees and power lines.
&&
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MTZ002-102100-
/O.NEW.KMSO.WS.A.0002.260312T0000Z-260314T1800Z/
West Glacier Region-
1235 PM MDT Mon Mar 9 2026
...WINTER STORM WATCH IN EFFECT FROM WEDNESDAY EVENING THROUGH
SATURDAY MORNING...
* WHAT...Heavy snow and blowing snow possible. There is a chance of
major winter weather impacts. Total snow accumulations between 3
to 8 inches in valleys, with 1 to 3 feet of snow in the mountains
and backcountry elevations. Wind gusts of 40 to 60 mph in the
lower elevations, with gusts of 60 to 80 mph in the backcountry.
* WHERE...Essex, Bad Rock Canyon, Glacier National Park, Highway 83
Bigfork to Swan Lake, Marias Pass, and Polebridge.
* WHEN...From Wednesday evening through Saturday morning.
* IMPACTS...Visibilities may drop below 1/4 mile due to falling and
blowing snow. The strong winds and weight of snow on tree limbs
may down power lines and could cause sporadic power outages.
Whiteout conditions are possible and may make travel treacherous
and potentially life-threatening on US Highway 2 near Marias Pass.
For MAJOR winter weather impacts, expect considerable disruptions
to normal activities. Dangerous or impossible traveling
conditions. Avoid travel in the impacted areas if possible.
Widespread closures and disruptions to infrastructure may occur.
* ADDITIONAL DETAILS...Blizzard like conditions are a concern for US
Highway 2 east of Essex to Marias Pass Wednesday night through
Thursday morning from heavy snow rates and strong wind gusts in
excess of 40 mph. Snow levels will be rising Wednesday into earlyThursday morning, reaching as high as 4,000 to 4,500 feet.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Monitor the latest forecasts for updates on this situation.
Persons should consider delaying all travel. If travel is absolutely
necessary, drive with extreme caution. Consider taking a winter
storm kit along with you, including such items as tire chains,
booster cables, flashlight, shovel, blankets and extra clothing.
Also take water, a first aid kit, and anything else that would help
you survive in case you become stranded.
Do not touch downed lines and report any power outages to your
electric company. Travel is highly discouraged due to slick roadways
and the possibility of downed trees and power lines.
&&
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MTZ006-102100-
/O.NEW.KMSO.WS.A.0002.260312T0000Z-260314T1800Z/
Bitterroot/Sapphire Mountains-
1235 PM MDT Mon Mar 9 2026
...WINTER STORM WATCH IN EFFECT FROM WEDNESDAY EVENING THROUGH
SATURDAY MORNING ABOVE 5000 FEET...
* WHAT...Heavy snow and blowing snow possible above 5000 feet. There
is a chance of major winter weather impacts. Total snow
accumulations between 1 to 3 feet. Wind gusts of 40 to 60 mph,
climbing to 60 to 80 mph along mountain ridgetops and crests.
* WHERE...Highway 93 Sula to Lost Trail Pass and Lolo Pass.
* WHEN...From Wednesday evening through Saturday morning.
* IMPACTS...Visibilities may drop below 1/4 mile due to falling and
blowing snow. The strong winds and weight of snow on tree limbs
may down power lines and could cause sporadic power outages.
Whiteout and blizzard conditions are possible in backcountry areas
and may make travel treacherous and potentially life-threatening.
For MAJOR winter weather impacts, expect considerable disruptions
to normal activities. Dangerous or impossible traveling
conditions. Avoid travel in the impacted areas if possible.
Widespread closures and disruptions to infrastructure may occur.
Strong winds could cause tree damage.
* ADDITIONAL DETAILS...Snow levels will be climbing Wednesday into
Thursday afternoon, reaching as high as 5,000 feet near Lolo Pass
and 6,000 feet near Lost Trail Pass. The worst travel conditions
are expected during the overnight and early morning periods.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Monitor the latest forecasts for updates on this situation.
Persons should consider delaying all travel. If travel is absolutely
necessary, drive with extreme caution. Consider taking a winter
storm kit along with you, including such items as tire chains,
booster cables, flashlight, shovel, blankets and extra clothing.
Also take water, a first aid kit, and anything else that would help
you survive in case you become stranded.
Do not touch downed lines and report any power outages to your
electric company. Travel is highly discouraged due to slick roadways
and the possibility of downed trees and power lines.
&&
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AL
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WWUS45 KTFX 091802
WSWTFX
URGENT - WINTER WEATHER MESSAGE
National Weather Service Great Falls MT
1202 PM MDT Mon Mar 9 2026
MTZ301-302-307-313-314-317-318-091915-
/O.EXP.KTFX.WW.Y.0013.000000T0000Z-260309T1800Z/
East Glacier Park Region-Northern High Plains-Southern Rocky
Mountain Front-Judith Basin County and Judith Gap-Fergus County
below 4500ft-Little Belt and Highwood Mountains-Snowy and Judith
Mountains-
Including the following locations: Geyser, Babb, Rogers Pass,
Kiowa, Lewistown, Hilger, East Glacier Park, Heart Butte,
Moccasin, Monarch, Kings Hill Pass, Saint Mary, Stanford, Hobson,
Raynesford, Benchland, Marias Pass, Logan Pass, Windham, Neihart,
Browning, and Dupuyer
1202 PM MDT Mon Mar 9 2026
...WINTER WEATHER ADVISORY HAS EXPIRED...
Snowfall has largely ended across the area. Please use caution as
icy spots may still exist.
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Ludwig
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