778  
WWUS45 KBOI 202157  
WSWBOI  
 
URGENT - WINTER WEATHER MESSAGE  
NATIONAL WEATHER SERVICE BOISE ID  
257 PM MST WED NOV 20 2024  
 
IDZ011-013-211200-  
/O.CON.KBOI.WW.Y.0013.000000T0000Z-241121T1200Z/  
WEST CENTRAL MOUNTAINS-BOISE MOUNTAINS-  
INCLUDING THE CITIES OF CASCADE, LOWMAN, PINE, MCCALL, GARDEN  
VALLEY, AND IDAHO CITY  
257 PM MST WED NOV 20 2024  
 
...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST THURSDAY  
FOR HIGH ELEVATION PASSES...  
 
* WHAT...SNOW EXPECTED. TOTAL SNOW ACCUMULATIONS 2 TO 6 INCHES IN  
THE MOUNTAIN VALLEYS ABOVE 4500 FEET. LOCALLY HIGHER AMOUNTS ARE  
POSSIBLE. TOTAL SNOW ACCUMULATIONS OF A FOOT OR MORE ABOVE 7000  
FEET, INCLUDING BANNER SUMMIT. WINDS GUSTING 25 TO 35 MPH.  
 
* WHERE...BOISE MOUNTAINS AND WEST CENTRAL MOUNTAINS, PARTICULARLY  
HIGH MOUNTAIN PASSES.  
 
* WHEN...UNTIL 5 AM MST THURSDAY.  
 
* IMPACTS...ROADS, AND ESPECIALLY BRIDGES AND OVERPASSES, WILL  
LIKELY BECOME SLICK AND HAZARDOUS. TRAVEL COULD BE VERY DIFFICULT.  
 
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.  
 
BE PREPARED FOR SLIPPERY ROADS. SLOW DOWN AND USE CAUTION WHILE  
DRIVING. IF YOU ARE GOING OUTSIDE, WATCH YOUR FIRST FEW STEPS TAKEN  
ON STAIRS, SIDEWALKS, AND DRIVEWAYS. THESE SURFACES COULD BE ICY AND  
SLIPPERY, INCREASING YOUR RISK OF A FALL AND INJURY.  
 
 
 
 
 
JM  
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