606  
WWUS45 KMSO 170919  
WSWMSO  
 
URGENT - WINTER WEATHER MESSAGE  
NATIONAL WEATHER SERVICE MISSOULA MT  
219 AM MST TUE DEC 17 2024  
 
MTZ001-003-004-171030-  
/O.CAN.KMSO.WW.Y.0057.000000T0000Z-241217T1600Z/  
KOOTENAI/CABINET REGION-FLATHEAD/MISSION VALLEYS-LOWER CLARK FORK  
REGION-  
219 AM MST TUE DEC 17 2024  
   
..WINTER WEATHER ADVISORY IS CANCELLED
 
 

 
 
IDZ005-171600-  
/O.CON.KMSO.WW.Y.0057.000000T0000Z-241217T1600Z/  
NORTHERN CLEARWATER MOUNTAINS-  
119 AM PST TUE DEC 17 2024  
 
...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 8 AM PST THIS  
MORNING...  
 
* WHAT...SNOW. LIKELIHOOD OF DEVELOPING OR ONGOING MINOR TO MODERATE  
IMPACTS FROM AROUND 1 TO 3 INCHES OF SNOW IS 90 PERCENT, AND 3 TO  
6 INCHES OF SNOW IS 30 PERCENT.  
 
* WHERE...PIERCE, ELK RIVER, AND HIGHWAY 11 PIERCE TO HEADQUARTERS.  
 
* WHEN...UNTIL 8 AM PST THIS MORNING.  
 
* IMPACTS...FOR MINOR IMPACTS FROM SNOW, EXPECT A FEW INCONVENIENCES  
TO NORMAL ACTIVITIES. USE CAUTION WHILE DRIVING. 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 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.  
 

 
 

 
 
IDZ006-MTZ006-171600-  
/O.CON.KMSO.WW.Y.0057.000000T0000Z-241217T1600Z/  
SOUTHERN CLEARWATER MOUNTAINS-BITTERROOT/SAPPHIRE MOUNTAINS-  
219 AM MST TUE DEC 17 2024 /119 AM PST TUE DEC 17 2024/  
 
...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 9 AM MST /8 AM  
PST/ THIS MORNING...  
 
* WHAT...SNOW. LIKELIHOOD OF DEVELOPING OR ONGOING MINOR TO MODERATE  
IMPACTS FROM AROUND 1 TO 3 INCHES OF SNOW IS 100 PERCENT, AND 3 TO  
6 INCHES OF SNOW IS 20 PERCENT.  
 
* WHERE...DIXIE, ELK CITY, HIGHWAY 93 SULA TO LOST TRAIL PASS, LOLO  
PASS, AND HIGHWAY 12 LOWELL TO LOLO PASS.  
 
* WHEN...UNTIL 9 AM MST /8 AM PST/ THIS MORNING.  
 
* 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. WINTER TRAVELING CONDITIONS. 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.  
 

 
 

 
 
MTZ002-171600-  
/O.CON.KMSO.WW.Y.0057.000000T0000Z-241217T1600Z/  
WEST GLACIER REGION-  
219 AM MST TUE DEC 17 2024  
 
...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 9 AM MST THIS  
MORNING...  
 
* WHAT...SNOW. LIKELIHOOD OF DEVELOPING OR ONGOING MINOR TO MODERATE  
IMPACTS FROM AROUND 1 TO 3 INCHES OF SNOW IS 100 PERCENT, AND 3 TO  
6 INCHES OF SNOW IS LESS THAN 10 PERCENT.  
 
* WHERE...POLEBRIDGE, ESSEX, BAD ROCK CANYON, MARIAS PASS, AND  
HIGHWAY 83 BIGFORK TO SWAN LAKE.  
 
* WHEN...UNTIL 9 AM MST THIS MORNING.  
 
* 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. WINTER TRAVELING CONDITIONS. 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.  
 

 
 

 
 
MTZ007-171600-  
/O.CON.KMSO.WW.Y.0057.000000T0000Z-241217T1600Z/  
BUTTE/BLACKFOOT REGION-  
219 AM MST TUE DEC 17 2024  
 
...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 9 AM MST THIS  
MORNING...  
 
* WHAT...SNOW. LIKELIHOOD OF DEVELOPING OR ONGOING MINOR TO MODERATE  
IMPACTS FROM AROUND 1 TO 3 INCHES OF SNOW IS 100 PERCENT, AND 3 TO  
6 INCHES OF SNOW IS LESS THAN 10 PERCENT.  
 
* WHERE...HIGHWAY 12 GARRISON TO ELLISTON, MACDONALD PASS, HOMESTAKE  
PASS, BUTTE, AND GEORGETOWN LAKE.  
 
* WHEN...UNTIL 9 AM MST THIS MORNING.  
 
* 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. FOR MINOR IMPACTS FROM SNOW, EXPECT A FEW  
INCONVENIENCES TO NORMAL ACTIVITIES. USE CAUTION WHILE DRIVING.  
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.  
 

 
 

 
 
MTZ043-171600-  
/O.CON.KMSO.WW.Y.0057.000000T0000Z-241217T1600Z/  
POTOMAC/SEELEY LAKE REGION-  
219 AM MST TUE DEC 17 2024  
 
...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 9 AM MST THIS  
MORNING...  
 
* WHAT...SNOW. LIKELIHOOD OF DEVELOPING OR ONGOING MINOR TO MODERATE  
IMPACTS FROM AROUND 1 TO 3 INCHES OF SNOW IS 90 PERCENT, AND 3 TO  
6 INCHES OF SNOW IS LESS THAN 10 PERCENT.  
 
* WHERE...HIGHWAY 83 SEELEY LAKE TO CONDON, HIGHWAY 200 BONNER TO  
GREENOUGH, AND I-90 EAST MISSOULA TO BEARMOUTH.  
 
* WHEN...UNTIL 9 AM MST THIS MORNING.  
 
* IMPACTS...FOR MINOR IMPACTS FROM SNOW, EXPECT A FEW INCONVENIENCES  
TO NORMAL ACTIVITIES. USE CAUTION WHILE DRIVING. WINTER TRAVELING  
CONDITIONS. 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.  
 

 
 

 
 
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