437  
WWUS46 KHNX 121156  
WSWHNX  
 
URGENT - WINTER WEATHER MESSAGE  
NATIONAL WEATHER SERVICE HANFORD CA  
456 AM PDT WED MAR 12 2025  
 
CAZ323>331-122000-  
/O.CON.KHNX.WS.W.0006.000000T0000Z-250314T0600Z/  
YOSEMITE NP OUTSIDE OF THE VALLEY-YOSEMITE VALLEY-SAN JOAQUIN  
RIVER CANYON-UPPER SAN JOAQUIN RIVER-KAISER TO RODGERS RIDGE-  
KINGS CANYON NP-GRANT GROVE AREA-SEQUOIA NP-SOUTH END OF THE  
UPPER SIERRA-  
INCLUDING THE CITIES OF HUME LAKE, LODGEPOLE, JOHNSONDALE,  
WAWONA, YOSEMITE VALLEY, TUOLUMNE MEADOWS, GIANT FOREST, DEVILS  
POSTPILE, FLORENCE LAKE, SHAVER LAKE, LAKE WISHON, GRANT GROVE,  
HUNTINGTON LAKE, CEDAR GROVE, AND LAKE THOMAS EDISON  
456 AM PDT WED MAR 12 2025  
   
..WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 PM PDT THURSDAY
 
 
* WHAT...HEAVY SNOW EXPECTED. TOTAL SNOW ACCUMULATIONS OF 1 TO 3  
FEET ABOVE 4000 FEET AND UP TO 4 FEET ON THE HIGHEST ELEVATIONS.  
WINDS COULD GUST AS HIGH AS 60 MPH.  
 
* WHERE...THE SIERRA NEVADA, INCLUDING YOSEMITE VALLEY.  
 
* WHEN...UNTIL 11 PM PDT THURSDAY.  
 
* IMPACTS...TRAVEL COULD BE VERY DIFFICULT TO IMPOSSIBLE. THE  
HAZARDOUS CONDITIONS COULD IMPACT THE WEDNESDAY MORNING AND  
EVENING COMMUTES. STRONG WINDS COULD CAUSE TREE DAMAGE.  
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...  
 
IF YOU MUST TRAVEL, KEEP AN EXTRA FLASHLIGHT, FOOD, AND WATER IN  
YOUR VEHICLE IN CASE OF AN EMERGENCY. THE LATEST ROAD CONDITIONS FOR  
THE STATE YOU ARE CALLING FROM CAN BE OBTAINED BY CALLING 5 1 1.  
 

 
 

 
 
CAZ318-320-322-122000-  
/O.CON.KHNX.WW.Y.0004.000000T0000Z-250314T0600Z/  
MARIPOSA-MADERA LOWER SIERRA-FRESNO-TULARE LOWER SIERRA-SOUTH END  
OF THE LOWER SIERRA-  
INCLUDING THE CITIES OF COARSEGOLD, BASS LAKE, CAMP NELSON, NORTH  
FORK, FISH CAMP, OAKHURST, AND AUBERRY  
456 AM PDT WED MAR 12 2025  
 
...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 PM PDT  
THURSDAY...  
 
* WHAT...SNOW EXPECTED. TOTAL SNOW ACCUMULATIONS OF 6 TO 12 INCHES  
BETWEEN 3000 AND 4000 FEET. WINDS GUSTING AS HIGH AS 40 MPH.  
 
* WHERE...FRESNO-TULARE LOWER SIERRA, MARIPOSA-MADERA LOWER SIERRA,  
AND SOUTH END OF THE LOWER SIERRA.  
 
* WHEN...UNTIL 11 PM PDT THURSDAY.  
 
* IMPACTS...TRAVEL COULD BE VERY DIFFICULT TO IMPOSSIBLE. THE  
HAZARDOUS CONDITIONS COULD IMPACT THE WEDNESDAY MORNING AND  
EVENING COMMUTES.  
 
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.  
 

 
 

 
 
CAZ333>336-122000-  
/O.CON.KHNX.WW.Y.0004.250313T0000Z-250314T1200Z/  
PIUTE WALKER BASIN-TEHACHAPI-GRAPEVINE-FRAZIER MOUNTAIN  
COMMUNITIES-  
INCLUDING THE CITIES OF FRAZIER PARK, LEBEC, GRAPEVINE, AND  
TEHACHAPI  
456 AM PDT WED MAR 12 2025  
 
...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 5 PM THIS  
AFTERNOON TO 5 AM PDT FRIDAY...  
 
* WHAT...SNOW EXPECTED. TOTAL SNOW ACCUMULATIONS OF 2 TO 6 INCHES  
ABOVE 4000 FEET AND UP TO 15 INCHES AT THE HIGHEST ELEVATIONS.  
WINDS COULD GUST AS HIGH AS 55 MPH.  
 
* WHERE...FRAZIER MOUNTAIN COMMUNITIES, GRAPEVINE, PIUTE WALKER  
BASIN, AND TEHACHAPI.  
 
* WHEN...FROM 5 PM THIS AFTERNOON TO 5 AM PDT FRIDAY.  
 
* IMPACTS...TRAVEL COULD BE VERY DIFFICULT TO IMPOSSIBLE. THE  
HAZARDOUS CONDITIONS COULD IMPACT THE WEDNESDAY EVENING AND  
THURSDAY MORNING COMMUTES. GUSTY WINDS COULD BRING DOWN TREE  
BRANCHES.  
 
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.  
 

 
 

 
 
DH  
 
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