Winter Weather Warnings / Watches / Advisories
Issued by NWS Missoula, MT

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URGENT - WINTER WEATHER MESSAGE
National Weather Service Missoula MT
1002 AM MDT Sun Oct 12 2025

MTZ001-131615-
/O.CON.KMSO.WS.W.0010.000000T0000Z-251013T1800Z/
Kootenai/Cabinet Region-
1002 AM MDT Sun Oct 12 2025

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL NOON MDT MONDAY...

* WHAT...Heavy snow expected. Total snow accumulations up to 1 inch
  below 3000 feet, 2 to 5 inches in the higher valleys, especially
  along Highway 2 Happys Inn to Marion, and 6 to 12 inches in the
  mountains. The Cabinet and Purcell mountains could receive a total
  of 12 to 18 inches. Gusty easterly winds 20 to 30 mph with gusts
  to 40 mph, though gusts to 50 mph are possible in the higher
  elevations.

* WHERE...Highway 2 Kalispell to Libby, Highway 93 Eureka to
  Whitefish, Highway 56 Bull Lake Road, and Highway 37 Eureka to
  Libby.

* WHEN...Until noon MDT Monday.

* IMPACTS...The strong winds and weight of snow on tree limbs may
  down power lines and could cause sporadic power outages. Initial
  light rain or melting snow will freeze as temperatures drop this
  evening, creating hazardous conditions even in areas that see
  little snow accumulation. Expect considerable disruptions to
  normal activities. Dangerous or impossible traveling conditions in
  the backcountry. Avoid travel in the impacted areas if possible.

* ADDITIONAL DETAILS...The time of greatest concern for wind, snow
  and icy conditions developing is Sunday evening between 6pm and
  midnight.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. The latest road conditions for
the state you are calling from can be obtained by calling 5 1 1.

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.

Outdoor recreationalists should be prepared for winter conditions.
Snowfall could impact roads and cold temperatures may result in
hypothermia.

&&

$$

MTZ002-131615-
/O.CON.KMSO.WS.W.0010.000000T0000Z-251013T1800Z/
West Glacier Region-
1002 AM MDT Sun Oct 12 2025

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL NOON MDT MONDAY...

* WHAT...Heavy snow and blowing snow expected. Total snow
  accumulations of 1 to 4 inches in the valleys, 5 to 9 inches Essex
  to Marias Pass, and 10 to 20 inches in the mountains. East winds
  15 to 25 mph with gusts to 45 mph. Ridgetop easterly winds 35 to
  45 mph with gusts to 60 mph.

* WHERE...Bad Rock Canyon, Marias Pass, Essex, Highway 83 Bigfork to
  Swan Lake, Glacier National Park higher elevations including
  Going-to-the-Sun Road and Logan Pass, and Polebridge.

* WHEN...Until noon MDT Monday.

* IMPACTS...Winter traveling conditions. 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. The hazardous conditions could impact the Monday
  morning commute, especially over higher passes.

* ADDITIONAL DETAILS...A flash freeze of wet or slushy roadways is
  possible Sunday night. The strong winds and weight of snow on tree
  limbs may down power lines and could cause sporadic power outages.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. The latest road conditions for
the state you are calling from can be obtained by calling 5 1 1.

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.

Outdoor recreationalists should be prepared for winter conditions.
Snowfall could impact roads and cold temperatures may result in
hypothermia.

&&

$$

MTZ003-131615-
/O.EXB.KMSO.WW.Y.0037.251013T0000Z-251013T1800Z/
Flathead/Mission Valleys-
1002 AM MDT Sun Oct 12 2025

...WINTER WEATHER ADVISORY IN EFFECT FROM 6 PM THIS EVENING TO NOON
MDT MONDAY...

* WHAT...Snow expected. Total snow accumulations of 1 to 3 inches.
  While all areas will see a dusting of snow, the most significant
  accumulations of 1 to 3 inches will be on the western side of the
  Flathead and Mission valleys, including west Kalispell, Kila and
  Hot Springs.

* WHERE...Polson, Flathead Valley, Flathead Lake, and Mission Valley.

* WHEN...From 6 PM this evening to noon MDT Monday.

* IMPACTS...The primary threat is the development of ice, especially
  on bridges, overpasses and sidewalks. Initial light rain or
  melting snow will freeze as temperatures drop Sunday evening,
  creating slippery conditions even in areas that see little snow
  accumulation.  Travel could be difficult.

* ADDITIONAL DETAILS...Gusty northeast to east winds gusting 40 to
  50 mph will further exacerbate ice formation and create cold wind
  chills in the teens.

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.

&&

$$

IDZ005-006-131615-
/O.CON.KMSO.WW.Y.0037.000000T0000Z-251013T1800Z/
Northern Clearwater Mountains-Southern Clearwater Mountains-
902 AM PDT Sun Oct 12 2025

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 AM PDT MONDAY
ABOVE 5500 FEET...

* WHAT...Snow expected above 5500 feet. Total snow accumulations up
  to 4 inches, except 5 to 10 inches in the higher terrain.

* WHERE...Dixie, Lolo Pass.

* WHEN...Until 11 AM PDT Monday.

* IMPACTS...For MODERATE winter weather impacts, expect disruptions
  to normal activities. Hazardous traveling conditions. Use extra
  caution while driving. Closures and disruptions to infrastructure
  may occur. The hazardous conditions could impact the Monday
  morning commute, especially over higher passes.

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.

&&

$$

IDZ009-010-131200-
/O.CON.KMSO.WW.Y.0037.000000T0000Z-251013T1200Z/
Western Lemhi County-Eastern Lemhi County-
1002 AM MDT Sun Oct 12 2025

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 AM MDT MONDAY
ABOVE 5500 FEET...

* WHAT...Snow expected above 5500 feet. There is a likelihood of
  minor to moderate winter weather impacts. Total snow accumulations
  1 to 5 inches. Winds gusting as high as 35 mph.

* WHERE...Williams Creek Summit, Lemhi Pass, Bannock Pass, Highway
  28 Tendoy to Lone Pine, and Highway 93 Lost Trail Pass to
  Gibbonsville.

* WHEN...Until 6 AM MDT Monday.

* IMPACTS...For MODERATE winter weather impacts, expect disruptions
  to normal activities. Hazardous traveling conditions. Use extra
  caution while driving.

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.

&&

$$

MTZ004-131615-
/O.CON.KMSO.WW.Y.0037.000000T0000Z-251013T1800Z/
Lower Clark Fork Region-
1002 AM MDT Sun Oct 12 2025

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL NOON MDT MONDAY
ABOVE 4500 FEET...

* WHAT...Snow expected above 4500 feet. There is a likelihood of
  moderate to moderate isolated major winter weather impacts. Total
  snow accumulations of 2 to 4 inches Lookout Pass, 4 to 7 inches
  Thompson Pass, and 7 to 10 inches in the higher elevations.
  Southwest winds 25 to 35 mph, then shifting to the northeast 25 to
  45 mph tonight.

* WHERE...Lower Clark Fork Region.

* WHEN...Until noon MDT Monday.

* IMPACTS...Expect disruptions to normal activities. Use extra
  caution while driving. Closures and disruptions to infrastructure
  may occur. The hazardous conditions could impact the Monday
  morning commute, especially over higher passes.

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.

&&

$$

MTZ006-131615-
/O.CON.KMSO.WW.Y.0037.000000T0000Z-251013T1800Z/
Bitterroot/Sapphire Mountains-
1002 AM MDT Sun Oct 12 2025

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL NOON MDT MONDAY
ABOVE 5500 FEET...

* WHAT...Snow expected above 5500 feet. Total snow accumulations
  between 1 and 6 inches, except 5 to 8 inches in the higher
  elevations of the Bitterroot Mountains.

* WHERE...Highway 93 Sula to Lost Trail Pass, Lolo Pass.

* WHEN...Until noon MDT Monday.

* IMPACTS...Expect disruptions to normal activities. Hazardous
  traveling conditions. Use extra caution while driving. Closures
  and disruptions to infrastructure may occur.

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.

&&

$$

MTZ007-131615-
/O.CON.KMSO.WW.Y.0037.000000T0000Z-251013T1800Z/
Butte/Blackfoot Region-
1002 AM MDT Sun Oct 12 2025

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL NOON MDT MONDAY
ABOVE 5000 FEET...

* WHAT...Snow expected above 5000 feet. Total snow accumulations up
  to 3 inches in the higher valleys with 3 to 8 inches in the
  mountains. Winds gusting up to 35 mph, except up to 45 mph in
  Helmville Sunday night.

* WHERE...Butte, Homestake Pass, MacDonald Pass, and Georgetown Lake.

* WHEN...Until noon MDT Monday.

* IMPACTS...Expect disruptions to normal activities. Hazardous
  traveling conditions. Use extra caution while driving. Closures
  and disruptions to infrastructure may occur. Possible flash freeze
  Sunday night at MacDonald Pass, Homestake Pass, and along I-15.

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.

&&

$$

MTZ043-131615-
/O.CON.KMSO.WW.Y.0037.000000T0000Z-251013T1800Z/
Potomac/Seeley Lake Region-
1002 AM MDT Sun Oct 12 2025

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL NOON MDT MONDAY
ABOVE 4000 FEET...

* WHAT...Snow expected above 4000 feet. Total snow accumulations up
  to two inches in the valleys with 5 to 12 inches in the higher
  terrain. The highest peaks of the Mission and Swan ranges could
  receive up to 18 inches. Northeast winds 35 to 45 mph develops in
  the mountains tonight.

* WHERE...Highway 83 Seeley Lake to Condon.

* WHEN...Until noon MDT Monday.

* IMPACTS...Expect disruptions to normal activities. Hazardous
  traveling conditions. Use extra caution while driving. Closures
  and disruptions to infrastructure may occur. The hazardous
  conditions could impact the Monday morning commute, especially
  over higher passes.

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.

&&

$$