202
WWUS45 KMSO 230321
WSWMSO
URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE MISSOULA MT
821 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. CONFIDENCE IS HIGHEST FOR ACCUMULATING SNOW
ACROSS LINCOLN COUNTY VALLEY AREAS. 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.
MTZ001-231800-
/O.EXB.KMSO.WW.Y.0009.260223T0600Z-260223T1800Z/
KOOTENAI/CABINET REGION-
821 PM MST SUN FEB 22 2026
..WINTER WEATHER ADVISORY IN EFFECT UNTIL 11 AM MST MONDAY
* WHAT...SNOW EXPECTED. THERE IS A LIKELIHOOD OF MINOR TO MODERATE
WINTER WEATHER IMPACTS. TOTAL SNOW ACCUMULATIONS OF 1 TO 3 INCHES
ON HIGHWAY 93 EUREKA TO WHITEFISH AND IN THE YAAK, WITH UP TO 1
INCH ELSEWHERE.
* WHERE...HIGHWAY 93 EUREKA TO WHITEFISH, HIGHWAY 56 BULL LAKE ROAD,
HIGHWAY 37 EUREKA TO LIBBY, AND HIGHWAY 2 KALISPELL TO LIBBY.
* WHEN...UNTIL 11 AM MST 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.
* ADDITIONAL DETAILS...AN ELEVATED RISK EXISTS FOR AREAS OF BLACK
ICE ON HIGHWAY 93 SOUTH OF EUREKA AND ON HIGHWAY 2 EAST OF LIBBY
TOWARDS KALISPELL.
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.
MTZ002-240330-
/O.CON.KMSO.WW.Y.0009.260223T1200Z-260224T1200Z/
WEST GLACIER REGION-
821 PM MST SUN FEB 22 2026
...WINTER WEATHER ADVISORY REMAINS 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...HIGHWAY 83 BIGFORK TO SWAN LAKE, ESSEX, GLACIER NATIONAL
PARK, MARIAS PASS, POLEBRIDGE, AND BAD ROCK CANYON.
* 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.
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.
MTZ004-240330-
/O.CON.KMSO.WW.Y.0009.260223T2000Z-260224T1600Z/
LOWER CLARK FORK REGION-
821 PM MST SUN FEB 22 2026
...WINTER WEATHER ADVISORY REMAINS 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...HIGHWAY 200 THOMPSON FALLS TO PLAINS, EVARO HILL, 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.
AL
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