323  
WWUS75 KTWC 060353  
NPWTWC  
 
URGENT - WEATHER MESSAGE  
NATIONAL WEATHER SERVICE TUCSON AZ  
853 PM MST FRI APR 5 2024  
 
AZZ503-507>509-061130-  
/O.EXP.KTWC.WI.Y.0006.000000T0000Z-240406T0400Z/  
/O.CON.KTWC.HZ.A.0004.240407T0800Z-240407T1600Z/  
UPPER SANTA CRUZ RIVER VALLEY/ALTAR VALLEY-  
UPPER SAN PEDRO RIVER VALLEY-  
EASTERN COCHISE COUNTY BELOW 5000 FEET-UPPER GILA RIVER VALLEY-  
INCLUDING THE CITIES OF NOGALES, SIERRA VISTA, BENSON, WILLCOX,  
DOUGLAS, CLIFTON, AND SAFFORD  
853 PM MST FRI APR 5 2024  
 
...HARD FREEZE WATCH REMAINS IN EFFECT FROM LATE SATURDAY NIGHT  
THROUGH SUNDAY MORNING...   
..WIND ADVISORY WILL EXPIRE AT 9 PM MST THIS EVENING
 
 
* WHAT...SUB-FREEZING TEMPERATURES AS LOW AS 27 POSSIBLE.  
 
* WHERE...UPPER SANTA CRUZ RIVER VALLEY/ALTAR VALLEY, UPPER SAN  
PEDRO RIVER VALLEY, EASTERN COCHISE COUNTY BELOW 5000 FEET AND  
UPPER GILA RIVER VALLEY.  
 
* WHEN...FROM LATE SATURDAY NIGHT THROUGH SUNDAY MORNING.  
 
* IMPACTS...FROST AND FREEZE CONDITIONS COULD KILL CROPS, OTHER  
SENSITIVE VEGETATION AND POSSIBLY DAMAGE UNPROTECTED OUTDOOR  
PLUMBING.  
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...  
 
TAKE STEPS NOW TO PROTECT TENDER PLANTS FROM THE COLD. TO PREVENT  
FREEZING AND POSSIBLE BURSTING OF OUTDOOR WATER PIPES THEY SHOULD  
BE WRAPPED, DRAINED, OR ALLOWED TO DRIP SLOWLY. THOSE THAT HAVE  
IN-GROUND SPRINKLER SYSTEMS SHOULD DRAIN THEM AND COVER ABOVE-  
GROUND PIPES TO PROTECT THEM FROM FREEZING.  
 

 
 

 
 
AZZ502-504-506-510>515-060500-  
/O.EXP.KTWC.WI.Y.0006.000000T0000Z-240406T0400Z/  
TOHONO O'ODHAM NATION-TUCSON METRO AREA-SOUTHEAST PINAL COUNTY-  
WHITE MOUNTAINS OF GRAHAM AND GREENLEE COUNTIES-  
GALIURO AND PINALENO MOUNTAINS-CHIRICAHUA MOUNTAINS-  
DRAGOON AND MULE AND HUACHUCA AND SANTA RITA MOUNTAINS-  
CATALINA AND RINCON MOUNTAINS-BABOQUIVARI MOUNTAINS-  
INCLUDING THE CITIES OF TUCSON, GREEN VALLEY, MARANA, VAIL,  
MAMMOTH, ORACLE, HANNAGAN MEADOW, MOUNT GRAHAM, CHIRICAHUA NM,  
BISBEE, CANELO HILLS, MADERA CANYON, MOUNT LEMMON,  
AND SUMMERHAVEN  
853 PM MST FRI APR 5 2024  
   
..WIND ADVISORY WILL EXPIRE AT 9 PM MST THIS EVENING
 
 
WINDS WILL CONTINUE TO SLOWLY DIMINISH THROUGH THE EVENING HOURS.  
 

 
 
VISIT US ON FACEBOOK...TWITTER...YOUTUBE...AND AT WEATHER.GOV/TUCSON  
 
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