404  
WWUS45 KMSO 121848  
WSWMSO  
 
URGENT - WINTER WEATHER MESSAGE  
NATIONAL WEATHER SERVICE MISSOULA MT  
1248 PM MDT MON MAY 12 2025  
 
IDZ009-010-131800-  
/O.NEW.KMSO.WW.Y.0033.250513T0600Z-250513T1800Z/  
WESTERN LEMHI COUNTY-EASTERN LEMHI COUNTY-  
1248 PM MDT MON MAY 12 2025  
 
...WINTER WEATHER ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO NOON  
MDT TUESDAY ABOVE 7000 FT...  
 
* WHAT...SNOW EXPECTED ABOVE 7000 FT. LIKELIHOOD OF MINOR TO  
MODERATE IMPACTS FROM AROUND 1 TO 3 INCHES OF SNOW IS 60 PERCENT,  
AND 3 TO 6 INCHES OF SNOW IS 10 PERCENT.  
 
* WHERE...BANNOCK PASS, WILLIAMS CREEK SUMMIT, HIGHWAY 28 TENDOY TO  
LONE PINE, AND LEMHI PASS.  
 
* WHEN...FROM MIDNIGHT TONIGHT TO NOON MDT TUESDAY.  
 
* 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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