876
WWUS45 KMSO 241117
WSWMSO
URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE MISSOULA MT
417 AM MST TUE FEB 24 2026
MTZ002-241230-
/O.CAN.KMSO.WW.Y.0009.000000T0000Z-260224T1200Z/
WEST GLACIER REGION-
417 AM MST TUE FEB 24 2026
..WINTER WEATHER ADVISORY IS CANCELLED
IDZ005-007-241800-
/O.EXA.KMSO.WW.Y.0009.000000T0000Z-260224T1800Z/
NORTHERN CLEARWATER MOUNTAINS-OROFINO/GRANGEVILLE REGION-
317 AM PST TUE FEB 24 2026
..WINTER WEATHER ADVISORY IN EFFECT UNTIL 10 AM PST THIS MORNING
* WHAT...WET SNOW. THERE IS A LIKELIHOOD OF DEVELOPING OR ONGOING
MODERATE WINTER WEATHER IMPACTS. ADDITIONAL SNOW ACCUMULATIONS UP
TO THREE INCHES.
* WHERE...GRANGEVILLE AND VICINITY, HIGHWAY 11 PIERCE TO
HEADQUARTERS, PIERCE, CAMAS PRAIRIE, ELK RIVER, AND GREER GRADE.
* WHEN...UNTIL 10 AM PST THIS 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 TUESDAY
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.
MTZ004-241800-
/O.CON.KMSO.WW.Y.0009.000000T0000Z-260224T1800Z/
LOWER CLARK FORK REGION-
417 AM MST TUE FEB 24 2026
...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST THIS
MORNING...
* WHAT...SNOW EXPECTED. THERE IS A LIKELIHOOD OF MODERATE WINTER
WEATHER IMPACTS OVER LOOKOUT PASS AND IN THE HIGH TERRAIN. TOTAL
SNOW ACCUMULATIONS 4 TO 8 INCHES FROM TAFT TO LOOKOUT PASS AND
TRACE TO 2 INCHES IN THE VALLEYS.
* WHERE...EVARO HILL, I-90 LOOKOUT PASS TO HAUGAN, HIGHWAY 200
THOMPSON FALLS TO PLAINS, AND HIGHWAY 200 TROUT CREEK TO HERON.
* WHEN...UNTIL 11 AM MST THIS MORNING.
* IMPACTS...WINTER TRAVELING CONDITIONS. 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...FOR EVARO HILL: THE MAIN CONCERN IS RAIN
TRANSITIONING TO HEAVY WET SNOW, CAUSING SLICK CONDITIONS
OVERNIGHT THROUGH TUESDAY MORNING.
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.
MTZ006-241800-
/O.CON.KMSO.WW.Y.0009.000000T0000Z-260224T1800Z/
BITTERROOT/SAPPHIRE MOUNTAINS-
417 AM MST TUE FEB 24 2026
...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST THIS
MORNING...
* WHAT...SNOW EXPECTED. THERE IS A LIKELIHOOD OF MINOR TO MODERATE
WINTER WEATHER IMPACTS. TOTAL SNOW ACCUMULATIONS 2 TO 7 INCHES,
INCLUDING LOLO AND LOST TRAIL PASSES.
* WHERE...HIGHWAY 93 SULA TO LOST TRAIL PASS AND LOLO PASS.
* WHEN...UNTIL 11 AM MST THIS MORNING.
* IMPACTS...WINTER TRAVELING CONDITIONS. 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...THE MAIN CONCERN IS RAIN TRANSITIONING TO
HEAVY WET SNOW, CAUSING SLICK CONDITIONS OVERNIGHT THROUGH TUESDAY
MORNING.
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.
MTZ007-241800-
/O.CON.KMSO.WW.Y.0009.000000T0000Z-260224T1800Z/
BUTTE/BLACKFOOT REGION-
417 AM MST TUE FEB 24 2026
...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST THIS
MORNING...
* WHAT...SNOW EXPECTED. 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 OVER MACDONALD PASS.
* WHERE...GEORGETOWN LAKE, HIGHWAY 12 GARRISON TO ELLISTON,
MACDONALD PASS, HOMESTAKE PASS, AND BUTTE.
* WHEN...UNTIL 11 AM MST THIS MORNING.
* IMPACTS...WINTER TRAVELING CONDITIONS. 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...THE MAIN CONCERN IS RAIN TRANSITIONING TO
HEAVY WET SNOW, CAUSING SLICK CONDITIONS OVERNIGHT THROUGH TUESDAY
MORNING, MAINLY FOCUSED TO THE BLACKFOOT REGION, GEORGETOWN LAKE,
AND MACDONALD PASS.
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.
MTZ043-241800-
/O.CON.KMSO.WW.Y.0009.000000T0000Z-260224T1800Z/
POTOMAC/SEELEY LAKE REGION-
417 AM MST TUE FEB 24 2026
...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST THIS
MORNING...
* WHAT...SNOW EXPECTED. THERE IS A LIKELIHOOD OF MINOR TO MODERATE
WINTER WEATHER IMPACTS. TOTAL SNOW ACCUMULATIONS 1 TO 4 INCHES IN
THE VALLEYS AND HIGHER AMOUNTS IN THE MOUNTAINS.
* WHERE...HIGHWAY 200 BONNER TO GREENOUGH, HIGHWAY 83 SEELEY LAKE TO
CONDON, AND I-90 EAST MISSOULA TO BEARMOUTH.
* WHEN...UNTIL 11 AM MST THIS MORNING.
* IMPACTS...WINTER TRAVELING CONDITIONS. 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...THE MAIN CONCERN IS RAIN TRANSITIONING TO
HEAVY WET SNOW, CAUSING SLICK CONDITIONS OVERNIGHT THROUGH TUESDAY
MORNING.
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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