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

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861
WWUS45 KMSO 050922
WSWMSO

URGENT - WINTER WEATHER MESSAGE
National Weather Service Missoula MT
222 AM MST Fri Dec 5 2025

MTZ003-051030-
/O.CAN.KMSO.WW.Y.0046.000000T0000Z-251205T1800Z/
Flathead/Mission Valleys-
222 AM MST Fri Dec 5 2025

...WINTER WEATHER ADVISORY IS CANCELLED...

$$

IDZ005-006-060930-
/O.CON.KMSO.WS.W.0012.000000T0000Z-251207T0000Z/
Northern Clearwater Mountains-Southern Clearwater Mountains-
122 AM PST Fri Dec 5 2025

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 4 PM PST SATURDAY...

* WHAT...Heavy snow expected. There is a likelihood of major winter
  storm impacts. Total snow accumulations 2 to 6 inches in the
  valleys and 9 to 18 inches in the higher terrain including Lolo
  Pass.

* WHERE...Highway 11 Pierce to Headquarters, Highway 12 Lowell to
  Lolo Pass, Pierce, Dixie, Elk River, and Elk City.

* WHEN...Until 4 PM PST Saturday.

* IMPACTS...Travel could be very difficult to impossible. The
  hazardous conditions could impact the Friday morning and evening
  commutes, especially over higher passes.

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.

&&

$$

MTZ004-060930-
/O.CON.KMSO.WS.W.0012.000000T0000Z-251207T0000Z/
Lower Clark Fork Region-
222 AM MST Fri Dec 5 2025

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST SATURDAY...

* WHAT...Heavy snow expected. There is a likelihood of major winter
  weather impacts. Total snow accumulations of 1 to 4 inches in the
  valleys and 8 to 14 inches in the higher terrain including Lookout
  Pass and Evaro Hill.

* WHERE...I-90 Lookout Pass to Haugan, Highway 200 Trout Creek to
  Heron, Evaro Hill, and Highway 200 Thompson Falls to Plains.

* WHEN...Until 5 PM MST Saturday.

* IMPACTS...Travel could be very difficult. The hazardous conditions
  could impact the Friday morning and evening commutes, especially
  over higher passes.

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.

&&

$$

MTZ006-060930-
/O.CON.KMSO.WS.W.0012.000000T0000Z-251207T0000Z/
Bitterroot/Sapphire Mountains-
222 AM MST Fri Dec 5 2025

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST SATURDAY...

* WHAT...Heavy snow expected. There is a likelihood of major winter
  storm impacts. Total snow accumulations 1 to 5 inches in the
  valleys and 8 to 15 inches in the higher terrain including Lolo
  and Lost Trail Passes. Winds gusting as high as 40 mph on Friday.

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

* WHEN...Until 5 PM MST Saturday.

* IMPACTS...Travel could be very difficult to impossible. The
  hazardous conditions could impact the Friday morning and evening
  commutes, especially over higher passes.

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.

&&

$$

MTZ043-060930-
/O.CON.KMSO.WS.W.0012.000000T0000Z-251207T0000Z/
Potomac/Seeley Lake Region-
222 AM MST Fri Dec 5 2025

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST SATURDAY...

* WHAT...Heavy Snow expected. There is a likelihood of major winter
  weather impacts. Total snow accumulations between 5 to 10 inches.

* WHERE...Highway 83 Seeley Lake to Condon, I-90 East Missoula to
  Bearmouth, and Highway 200 Bonner to Greenough.

* WHEN...Until 5 PM MST Saturday.

* IMPACTS...Travel could be very difficult. The hazardous conditions
  could impact the Friday morning and evening commutes, especially
  over higher passes.

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.

&&

$$

MTZ005-060600-
/O.EXT.KMSO.WW.Y.0046.000000T0000Z-251206T0600Z/
Missoula/Bitterroot Valleys-
222 AM MST Fri Dec 5 2025

...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL 11 PM MST THIS
EVENING...

* WHAT...Snow. A lull in precipitation is expected through 2 pm.
  Then moderate to heavy snow showers are expected. Snow rates of
  0.50 to 1 inch per hour possible along with wind gusts up to 40
  mph.

* WHERE...North of Hamilton in the Bitterroot Valley and Missoula.

* WHEN...Until 11 PM MST this evening.

* IMPACTS...Winter traveling conditions. For MINOR winter weather
  impacts, expect a few inconveniences to normal activities. Use
  caution while driving. The hazardous conditions could impact the
  Friday morning and evening commutes, 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.

&&

$$

MTZ007-060600-
/O.EXT.KMSO.WW.Y.0046.000000T0000Z-251206T0600Z/
Butte/Blackfoot Region-
222 AM MST Fri Dec 5 2025

...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL 11 PM MST THIS
EVENING...

* WHAT...Snow. There is a likelihood of developing or ongoing minor
  winter weather impacts. Additional snow accumulations between 1
  and 6 inches. Winds gusting as high as 35 mph.

* WHERE...Butte, Georgetown Lake, Homestake Pass, Highway 12
  Garrison to Elliston, and MacDonald Pass.

* WHEN...Until 11 PM MST this evening.

* IMPACTS...Winter traveling conditions. For MINOR winter weather
  impacts, expect a few inconveniences to normal activities. Use
  caution while driving. The hazardous conditions could impact the
  Friday morning and evening commutes, 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.

&&

$$

IDZ009-010-051800-
/O.CON.KMSO.WW.Y.0046.000000T0000Z-251205T1800Z/
Western Lemhi County-Eastern Lemhi County-
222 AM MST Fri Dec 5 2025

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST THIS
MORNING...

* WHAT...Snow. There is a likelihood of developing or ongoing minor
  winter weather impacts. Additional snow accumulations up to one
  inch.

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

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

* IMPACTS...Winter traveling conditions. For MINOR winter weather
  impacts, expect a few inconveniences to normal activities. Use
  caution while driving. The hazardous conditions could impact the
  Friday 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.

&&

$$

MTZ002-060930-
/O.CON.KMSO.WS.A.0010.251206T0000Z-251207T1500Z/
West Glacier Region-
222 AM MST Fri Dec 5 2025

...WINTER STORM WATCH REMAINS IN EFFECT FROM THIS AFTERNOON THROUGH
SUNDAY MORNING...

* WHAT...Heavy snow possible. There is a chance of moderate to major
  winter weather impacts. Total snow accumulations between 2 and 28
  inches possible. Winds could gust as high as 40 mph.

* WHERE...Essex, Glacier National Park, Highway 83 Bigfork to Swan
  Lake, Bad Rock Canyon, Polebridge, and Marias Pass.

* WHEN...From this afternoon through Sunday morning.

* 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. 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. The hazardous conditions could impact the Friday
  evening commute, especially over higher passes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts for updates on this situation.

&&

$$