959  
WWUS46 KSTO 171204  
WSWSTO  
 
URGENT - WINTER WEATHER MESSAGE  
NATIONAL WEATHER SERVICE SACRAMENTO CA  
504 AM PDT MON MAR 17 2025  
 
CAZ068-180000-  
/O.CON.KSTO.WS.W.0008.000000T0000Z-250318T0600Z/  
WESTERN PLUMAS COUNTY/LASSEN PARK-  
INCLUDING THE CITIES OF CHESTER AND QUINCY  
504 AM PDT MON MAR 17 2025  
 
...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 PM PDT THIS  
EVENING ABOVE 4500 FEET...  
 
* WHAT...HEAVY SNOW EXPECTED ABOVE 4500 FEET. ADDITIONAL SNOW  
ACCUMULATIONS OF 6 TO 12 INCHES. WINDS GUSTING AS HIGH AS 45 MPH.  
 
* WHERE...WESTERN PLUMAS COUNTY/LASSEN PARK.  
 
* WHEN...UNTIL 11 PM PDT THIS EVENING.  
 
* IMPACTS...PLAN ON SLIPPERY ROAD CONDITIONS. THE HAZARDOUS  
CONDITIONS COULD IMPACT THE MONDAY MORNING AND EVENING COMMUTES.  
 
* ADDITIONAL DETAILS...SNOWFALL RATES OF 1 TO 2 INCHES PER HOUR AT  
TIMES. SNOW LEVELS FALL TO AROUND 3500 FEET LATE TONIGHT, LIGHT  
ACCUMULATIONS OF 1-3 INCHES POSSIBLE.  
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...  
 
CHECK THE LATEST ROAD CONDITIONS FROM CALTRANS ONLINE AT  
QUICKMAP.DOT.CA.GOV OR DIAL 5 1 1.  
 
PERSONS SHOULD DELAY TRAVEL IF POSSIBLE. IF TRAVEL IS ABSOLUTELY  
NECESSARY, DRIVE WITH EXTREME CAUTION AND BE PREPARED FOR SUDDEN  
CHANGES IN VISIBILITY. CONSIDER TAKING A WINTER STORM KIT ALONG WITH  
YOU AND ANYTHING ELSE THAT WOULD HELP YOU SURVIVE IN CASE YOU BECOME  
STRANDED.  
 
 
 
 
 
CAZ069-180000-  
/O.CON.KSTO.WS.W.0008.000000T0000Z-250318T0600Z/  
WEST SLOPE NORTHERN SIERRA NEVADA-  
INCLUDING THE CITIES OF BLUE CANYON  
504 AM PDT MON MAR 17 2025  
 
...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 PM PDT THIS  
EVENING ABOVE 4500 FEET...  
 
* WHAT...HEAVY SNOW EXPECTED ABOVE 4500 FEET. ADDITIONAL SNOW  
ACCUMULATIONS OF 1 TO 2 FEET ABOVE 5000 FEET, AND 4 TO 10 INCHES  
BETWEEN 4500-5000 FEET. WINDS GUSTING AS HIGH AS 50 MPH.  
 
* WHERE...WEST SLOPE NORTHERN SIERRA NEVADA.  
 
* WHEN...UNTIL 11 PM PDT THIS EVENING.  
 
* IMPACTS...TRAVEL COULD BE VERY DIFFICULT TO IMPOSSIBLE. THE  
HAZARDOUS CONDITIONS COULD IMPACT THE MONDAY MORNING AND EVENING  
COMMUTES. GUSTY WINDS COULD BRING DOWN TREE BRANCHES.  
 
* ADDITIONAL DETAILS...HEAVIEST SNOW EARLY THIS MORNING WITH  
SNOWFALL RATES UP TO 2 TO 3 INCHES PER HOUR AT TIMES. SNOW LEVELS  
FALL TO AROUND 3500 FEET LATE TONIGHT, LIGHT ACCUMULATIONS OF 1-3  
INCHES POSSIBLE.  
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...  
 
CHECK THE LATEST ROAD CONDITIONS FROM CALTRANS ONLINE AT  
QUICKMAP.DOT.CA.GOV OR DIAL 5 1 1.  
 
PERSONS SHOULD DELAY TRAVEL IF POSSIBLE. IF TRAVEL IS ABSOLUTELY  
NECESSARY, DRIVE WITH EXTREME CAUTION AND BE PREPARED FOR SUDDEN  
CHANGES IN VISIBILITY. CONSIDER TAKING A WINTER STORM KIT ALONG WITH  
YOU AND ANYTHING ELSE THAT WOULD HELP YOU SURVIVE IN CASE YOU BECOME  
STRANDED.  
 
 
 
 
 
FOR MORE INFORMATION, VISIT US AT WWW.WEATHER.GOV/STO/  
 
KH  
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