118  
WWUS45 KMSO 210142  
WSWMSO  
 
URGENT - WINTER WEATHER MESSAGE  
NATIONAL WEATHER SERVICE MISSOULA MT  
642 PM MST WED NOV 20 2024  
 
MTZ001-211800-  
/O.NEW.KMSO.WW.Y.0051.241121T0142Z-241121T1800Z/  
KOOTENAI/CABINET REGION-  
642 PM MST WED NOV 20 2024  
   
..WINTER WEATHER ADVISORY IN EFFECT UNTIL 11 AM MST THURSDAY
 
 
* WHAT...SNOW. VALLEY ACCUMULATIONS OF 1 TO 3 INCHES. LIKELIHOOD OF  
DEVELOPING OR ONGOING MODERATE IMPACTS FROM 3 TO 6 INCHES OF SNOW  
IS GREATER THAN 90 PERCENT, AND UP TO A 50 PERCENT CHANCE OF  
ISOLATED MAJOR IMPACTS FROM 6 TO 10 INCHES OR MORE OF SNOW.  
 
* WHERE...HIGHWAY 2 KALISPELL TO LIBBY, HIGHWAY 37 EUREKA TO LIBBY,  
HIGHWAY 93 EUREKA TO WHITEFISH, AND HIGHWAY 56 BULL LAKE ROAD.  
 
* WHEN...UNTIL 11 AM MST THURSDAY.  
 
* IMPACTS...FOR MODERATE IMPACTS FROM SNOW, 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.  
 

 
 

 
 
MTZ002-211800-  
/O.CON.KMSO.WW.Y.0050.000000T0000Z-241121T1800Z/  
WEST GLACIER REGION-  
642 PM MST WED NOV 20 2024  
 
...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST  
THURSDAY...  
 
* WHAT...SNOW EXPECTED. VALLEY ACCUMULATIONS OF 1 TO 3 INCHES.  
LIKELIHOOD OF MODERATE IMPACTS IN THE HIGHER TERRAIN AND MOUNTAIN  
PASSES FROM 3 TO 6 INCHES OF SNOW IS GREATER THAN 90 PERCENT, AND  
UP TO A 50 PERCENT CHANCE OF ISOLATED MAJOR IMPACTS FROM 6 TO 10  
INCHES OR MORE OF SNOW.  
 
* WHERE...MARIAS PASS, HIGHWAY 83 BIGFORK TO SWAN LAKE, ESSEX,  
POLEBRIDGE, AND BAD ROCK CANYON.  
 
* WHEN...UNTIL 11 AM MST THURSDAY.  
 
* IMPACTS...FOR MODERATE IMPACTS FROM SNOW, 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.  
 

 
 

 
 
MTZ004-211800-  
/O.CON.KMSO.WW.Y.0050.000000T0000Z-241121T1800Z/  
LOWER CLARK FORK REGION-  
642 PM MST WED NOV 20 2024  
 
...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST  
THURSDAY...  
 
* WHAT...SNOW EXPECTED. VALLEY ACCUMULATIONS OF 1 TO 3 INCHES.  
LIKELIHOOD OF MODERATE IMPACTS IN THE HIGHER TERRAIN AND MOUNTAIN  
PASSES FROM 3 TO 6 INCHES OF SNOW IS GREATER THAN 90 PERCENT, AND  
UP TO A 50 PERCENT CHANCE OF ISOLATED MAJOR IMPACTS FROM 6 TO 10  
INCHES OR MORE OF SNOW.  
 
* WHERE...HIGHWAY 200 TROUT CREEK TO HERON, I-90 LOOKOUT PASS TO  
HAUGAN, EVARO HILL, AND HIGHWAY 200 THOMPSON FALLS TO PLAINS.  
 
* WHEN...UNTIL 11 AM MST THURSDAY.  
 
* IMPACTS...FOR MODERATE IMPACTS FROM SNOW, 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 THURSDAY  
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.  
 

 
 

 
 
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