442
WWUS45 KMSO 151857
WSWMSO
URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE MISSOULA MT
1257 PM MDT SUN MAR 15 2026
IDZ006-161800-
/O.NEW.KMSO.WW.Y.0016.260316T0300Z-260316T1800Z/
SOUTHERN CLEARWATER MOUNTAINS-
1157 AM PDT SUN MAR 15 2026
...WINTER WEATHER ADVISORY IN EFFECT FROM 8 PM THIS EVENING TO 11 AM
PDT MONDAY...
* WHAT...SNOW EXPECTED. THERE IS A LIKELIHOOD OF MINOR WINTER
WEATHER IMPACTS. TOTAL SNOW ACCUMULATIONS OF ONE HALF INCH TO 2
INCHES BELOW 3000 FEET AND 2 TO 5 INCHES ABOVE 3000 FEET.
* WHERE...ELK CITY, HIGHWAY 12 LOWELL TO LOLO PASS, AND DIXIE.
* WHEN...FROM 8 PM THIS EVENING TO 11 AM PDT MONDAY.
* 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
MONDAY MORNING COMMUTE, ESPECIALLY OVER HIGHER PASSES.
* ADDITIONAL DETAILS...A RAPID RISE IN SNOW LEVELS MONDAY MORNING
WILL BRING THE THREAT OF A WINTRY MIX AND SLICK TRAVEL CONDITIONS.
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.
MTZ004-161800-
/O.NEW.KMSO.WW.Y.0016.260316T0300Z-260316T1800Z/
LOWER CLARK FORK REGION-
1257 PM MDT SUN MAR 15 2026
...WINTER WEATHER ADVISORY IN EFFECT FROM 9 PM THIS EVENING TO NOON
MDT MONDAY...
* WHAT...SNOW EXPECTED. THERE IS A LIKELIHOOD OF MINOR WINTER
WEATHER IMPACTS. TOTAL SNOW ACCUMULATIONS OF 1 TO 3 INCHES IN THE
VALLEYS AND 2 TO 5 INCHES AT PASS LEVEL.
* WHERE...HIGHWAY 200 TROUT CREEK TO HERON, EVARO HILL, HIGHWAY 200
THOMPSON FALLS TO PLAINS, AND I-90 LOOKOUT PASS TO HAUGAN.
* WHEN...FROM 9 PM THIS EVENING TO NOON MDT MONDAY.
* 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
MONDAY MORNING COMMUTE, ESPECIALLY OVER HIGHER PASSES.
* ADDITIONAL DETAILS...A RAPID RISE IN SNOW LEVELS MONDAY MORNING
WILL BRING THE THREAT OF A WINTRY MIX AND SLICK TRAVEL CONDITIONS.
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.
MTZ006-161800-
/O.NEW.KMSO.WW.Y.0016.260316T0300Z-260316T1800Z/
BITTERROOT/SAPPHIRE MOUNTAINS-
1257 PM MDT SUN MAR 15 2026
...WINTER WEATHER ADVISORY IN EFFECT FROM 9 PM THIS EVENING TO NOON
MDT MONDAY...
* WHAT...SNOW EXPECTED. THERE IS A LIKELIHOOD OF MINOR WINTER
WEATHER IMPACTS. TOTAL SNOW ACCUMULATIONS UP TO 4 INCHES.
* WHERE...HIGHWAY 93 SULA TO LOST TRAIL PASS AND LOLO PASS.
* WHEN...FROM 9 PM THIS EVENING TO NOON MDT MONDAY.
* 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
MONDAY MORNING COMMUTE, ESPECIALLY OVER HIGHER PASSES.
* ADDITIONAL DETAILS...A RAPID RISE IN SNOW LEVELS MONDAY MORNING
WILL BRING THE THREAT OF A WINTRY MIX AND SLICK TRAVEL CONDITIONS.
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.
MTZ005-161800-
/O.NEW.KMSO.WW.Y.0016.260316T0600Z-260316T1800Z/
MISSOULA/BITTERROOT VALLEYS-
1257 PM MDT SUN MAR 15 2026
...WINTER WEATHER ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO NOON
MDT MONDAY...
* WHAT...SNOW EXPECTED. THERE IS A LIKELIHOOD OF MINOR WINTER
WEATHER IMPACTS. TOTAL SNOW ACCUMULATIONS OF ONE HALF INCH TO 3
INCHES. THE LOWER AMOUNTS ARE MORE LIKELY IN THE SOUTHERN HALF OF
THE BITTERROOT VALLEY.
* WHERE...MISSOULA AND BITTERROOT VALLEY.
* WHEN...FROM MIDNIGHT TONIGHT TO NOON MDT MONDAY.
* 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
MONDAY MORNING COMMUTE, ESPECIALLY OVER HIGHER PASSES.
* ADDITIONAL DETAILS...A RAPID RISE IN SNOW LEVELS MONDAY MORNING
WILL BRING THE THREAT OF A WINTRY MIX AND SLICK TRAVEL CONDITIONS.
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.
MTZ043-161800-
/O.NEW.KMSO.WW.Y.0016.260316T0600Z-260316T1800Z/
POTOMAC/SEELEY LAKE REGION-
1257 PM MDT SUN MAR 15 2026
...WINTER WEATHER ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO NOON
MDT MONDAY...
* WHAT...SNOW EXPECTED. THERE IS A LIKELIHOOD OF MINOR WINTER
WEATHER IMPACTS. TOTAL SNOW ACCUMULATIONS BETWEEN 1 AND 4 INCHES.
* WHERE...HIGHWAY 83 SEELEY LAKE TO CONDON, I-90 EAST MISSOULA TO
BEARMOUTH, AND HIGHWAY 200 BONNER TO GREENOUGH.
* WHEN...FROM MIDNIGHT TONIGHT TO NOON MDT MONDAY.
* 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
MONDAY MORNING COMMUTE, ESPECIALLY OVER HIGHER PASSES.
* ADDITIONAL DETAILS...A RAPID RISE IN SNOW LEVELS MONDAY MORNING
WILL BRING THE THREAT OF A WINTRY MIX AND SLICK TRAVEL CONDITIONS.
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
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