450  
WWUS46 KSEW 201158  
WSWSEW  
 
URGENT - WINTER WEATHER MESSAGE  
NATIONAL WEATHER SERVICE SEATTLE WA  
358 AM PST WED NOV 20 2024  
 
.SNOW SHOWERS OVER THE NORTH CASCADES WILL PRODUCE 4 TO 9 INCHES OF  
NEW SNOW TODAY ABOVE 3000 FEET.  
 
WAZ567-210200-  
/O.NEW.KSEW.WW.Y.0021.241120T1200Z-241121T0200Z/  
WEST SLOPES NORTH CASCADES AND PASSES-  
INCLUDING THE CITIES OF LYMAN, CONCRETE, AND HAMILTON  
358 AM PST WED NOV 20 2024  
   
..WINTER WEATHER ADVISORY IN EFFECT UNTIL 6 PM PST THIS EVENING
 
 
* WHAT...SNOW EXPECTED. TOTAL SNOW ACCUMULATIONS OF 4 TO 9 INCHES.  
 
* WHERE...WEST SLOPES NORTH CASCADES AND PASSES.  
 
* WHEN...UNTIL 6 PM PST THIS EVENING.  
 
* IMPACTS...PLAN ON SLIPPERY ROAD CONDITIONS.  
 
* ADDITIONAL DETAILS...SNOW SHOWERS TODAY WILL PRODUCE 4 TO 9 INCHES  
OF NEW SNOW TODAY ABOVE 3000 FEET.  
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...  
 
SLOW DOWN AND USE CAUTION WHILE TRAVELING. PREPARE FOR POSSIBLE  
POWER OUTAGES.  
 

 
 

 
 
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