217
WWUS46 KSTO 111958
WSWSTO
URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE SACRAMENTO CA
1158 AM PST TUE FEB 11 2025
CAZ013-063-121300-
/O.UPG.KSTO.WS.A.0002.250213T0600Z-250214T1200Z/
/O.NEW.KSTO.WS.W.0005.250213T0600Z-250214T1200Z/
SHASTA LAKE AREA / NORTHERN SHASTA COUNTY-MOUNTAINS SOUTHWESTERN
SHASTA COUNTY TO WESTERN COLUSA COUNTY-
INCLUDING THE CITIES OF SHASTA DAM AND ALDER SPRINGS
1158 AM PST TUE FEB 11 2025
...WINTER STORM WARNING IN EFFECT FROM 10 PM WEDNESDAY TO 4 AM PST
FRIDAY ABOVE 2000 FEET...
* WHAT...HEAVY SNOW ABOVE 2000 FEET. TOTAL SNOW ACCUMULATIONS 3 TO 8
INCHES AROUND 2000 FEET WITH 1 TO 2 FEET ABOVE 3500 FEET. WINDS
COULD GUST AS HIGH AS 45 MPH.
* WHERE...MOUNTAINS SOUTHWESTERN SHASTA COUNTY TO WESTERN COLUSA
COUNTY AND SHASTA LAKE AREA / NORTHERN SHASTA COUNTY ABOVE 2000
FEET.
* WHEN...FROM 10 PM WEDNESDAY TO 4 AM PST FRIDAY.
* IMPACTS...DIFFICULT TRAVEL CONDITIONS WITH CHAIN CONTROLS AND
POTENTIAL ROAD CLOSURES. LOW VISIBILITY DUE TO COMBINATION OF WIND
AND HEAVY SNOW. THE HAZARDOUS CONDITIONS COULD IMPACT THE THURSDAY
MORNING AND EVENING COMMUTES. HEAVIEST SNOWFALL WEDNESDAY NIGHT
THROUGH MIDDAY THURSDAY. SNOW RATES OF 1-2 INCHES PER HOUR AT
TIMES.
* ADDITIONAL DETAILS...SNOW LEVELS START OFF AROUND 1000 TO 2000
FEET WEDNESDAY NIGHT BEFORE RISING TO 3500 TO 4500 FEET THROUGH
THE DAY ON THURSDAY.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
CHECK THE LATEST ROAD CONDITIONS FROM CALTRANS ONLINE AT
QUICKMAP.DOT.CA.GOV OR DIAL 5 1 1.
CAZ068-069-121300-
/O.UPG.KSTO.WS.A.0002.250213T0600Z-250215T0600Z/
/O.NEW.KSTO.WS.W.0005.250213T0600Z-250215T0600Z/
WESTERN PLUMAS COUNTY/LASSEN PARK-WEST SLOPE NORTHERN SIERRA
NEVADA-
INCLUDING THE CITIES OF CHESTER, BLUE CANYON, AND QUINCY
1158 AM PST TUE FEB 11 2025
...WINTER STORM WARNING IN EFFECT FROM 10 PM WEDNESDAY TO 10 PM PST
FRIDAY ABOVE 4500 FEET...
* WHAT...HEAVY SNOW. HEAVIEST ACCUMULATIONS OF 2 TO 5 FEET POSSIBLE
ABOVE 6000 FEET WITH 5 TO 15 INCHES BETWEEN 4500 AND 6000 FEET.
WINDS COULD GUST AS HIGH AS 60 MPH.
* WHERE...WEST SLOPE NORTHERN SIERRA NEVADA AND WESTERN PLUMAS
COUNTY/LASSEN PARK ABOVE 4500 FEET.
* WHEN...FROM 10 PM WEDNESDAY TO 10 PM PST FRIDAY.
* IMPACTS...VERY DIFFICULT TRAVEL CONDITIONS WITH CHAIN CONTROLS AND
POTENTIAL ROAD CLOSURES. THE HAZARDOUS CONDITIONS COULD IMPACT THE
THURSDAY MORNING AND EVENING COMMUTES. HEAVIEST SNOWFALL EXPECTED
ON THURSDAY WITH SNOW RATES OF 1-2+ INCHES PER HOUR AT TIMES.
* ADDITIONAL DETAILS...SNOW LEVELS START OFF AROUND 2500 TO 4500
FEET WEDNESDAY NIGHT BEFORE RISING TO 4500 TO 6000 FEET THROUGH
THE DAY ON THURSDAY.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
CHECK THE LATEST ROAD CONDITIONS FROM CALTRANS ONLINE AT
QUICKMAP.DOT.CA.GOV OR DIAL 5 1 1.
FOR MORE INFORMATION, VISIT US AT WWW.WEATHER.GOV/STO/
KH
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