WWUS45 KMSO 222105
WSWMSO

URGENT - WINTER WEATHER MESSAGE
National Weather Service Missoula MT
205 PM MST Sun Feb 22 2026

...WINTRY MIX IN VALLEYS AND MOUNTAIN SNOW MONDAY THROUGH MONDAY
NIGHT...

.Snow levels will be borderline in northwest Montana valleys, and a
wintry mix brings an increased risk for slick conditions during the
Monday morning commute. Over mountain passes, snow will begin
overnight with minor impacts, intensifying by Monday afternoon.
Expect moderate travel impacts with slushy accumulation on I-90 and
US-2 through Monday night.

MTZ002-232115-
/O.NEW.KMSO.WW.Y.0009.260223T1200Z-260224T1200Z/
West Glacier Region-
205 PM MST Sun Feb 22 2026

...WINTER WEATHER ADVISORY IN EFFECT FROM 5 AM MONDAY TO 5 AM MST
TUESDAY...

* WHAT...Snow expected. There is a likelihood of minor to moderate
  winter weather impacts. Total snow accumulations of 1 to 4 inches
  in the valleys and 6 to 9 inches from Essex to Marias Pass. Higher
  amounts are expected in the higher terrain. Winds gusting as high
  as 35 mph.

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

* WHEN...From 5 AM Monday to 5 AM MST Tuesday.

* 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 Monday
  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.

&&

$$

MTZ004-232115-
/O.NEW.KMSO.WW.Y.0009.260223T2000Z-260224T1600Z/
Lower Clark Fork Region-
205 PM MST Sun Feb 22 2026

...WINTER WEATHER ADVISORY IN EFFECT FROM 1 PM MONDAY TO 9 AM MST
TUESDAY...

* WHAT...Snow expected. There is a likelihood of minor to moderate
  winter weather impacts over Lookout Pass and in the high terrain.
  Total snow accumulations 4 to 8 inches from Taft to Lookout Pass.

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

* WHEN...From 1 PM Monday to 9 AM MST Tuesday.

* 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
  evening and Tuesday morning commutes, especially over higher
  passes.

* ADDITIONAL DETAILS...Light pass level snow and a wintry mix in
  valleys may cause minor travel impacts Monday morning, but main
  travel impacts for Lookout Pass are expected to begin Monday
  afternoon.

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.

&&

$$

JK