968  
WWUS75 KTWC 081045  
NPWTWC  
 
URGENT - WEATHER MESSAGE  
NATIONAL WEATHER SERVICE TUCSON AZ  
345 AM MST FRI AUG 8 2025  
 
AZZ501>509-515-090300-  
/O.CON.KTWC.XH.W.0005.000000T0000Z-250809T0300Z/  
WESTERN PIMA COUNTY-TOHONO O'ODHAM NATION-UPPER SANTA CRUZ RIVER  
VALLEY/ALTAR VALLEY-TUCSON METRO AREA-SOUTH CENTRAL PINAL COUNTY-  
SOUTHEAST PINAL COUNTY-UPPER SAN PEDRO RIVER VALLEY-EASTERN  
COCHISE COUNTY BELOW 5000 FEET-UPPER GILA RIVER VALLEY-  
BABOQUIVARI MOUNTAINS-  
INCLUDING THE CITIES OF WILLCOX, SAFFORD, AJO, ORACLE, SIERRA  
VISTA, TUCSON, DOUGLAS, VAIL, PICACHO PEAK STATE PARK, MAMMOTH,  
KITT PEAK, NOGALES, ORGAN PIPE CACTUS N.M., MARANA, GREEN VALLEY,  
SELLS, CLIFTON, AND BENSON  
345 AM MST FRI AUG 8 2025  
 
...EXTREME HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM MST THIS  
EVENING...  
 
* WHAT...NOT AS HOT AS THE PAST TWO DAYS WITH TEMPERATURES RANGING  
FROM 100 TO 111 DEGREES, HOTTEST ACROSS PIMA COUNTY AND  
SOUTH-CENTRAL PINAL COUNTY.  
 
* WHERE...EASTERN COCHISE COUNTY BELOW 5000 FEET, SOUTH CENTRAL  
PINAL COUNTY, SOUTHEAST PINAL COUNTY, TOHONO O'ODHAM NATION,  
TUCSON METRO AREA, UPPER GILA RIVER VALLEY, UPPER SAN PEDRO RIVER  
VALLEY, UPPER SANTA CRUZ RIVER VALLEY/ALTAR VALLEY, AND WESTERN  
PIMA COUNTY.  
 
* WHEN...UNTIL 8 PM MST THIS EVENING.  
 
* IMPACTS...HEAT RELATED ILLNESSES INCREASE SIGNIFICANTLY DURING  
EXTREME HEAT EVENTS.  
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...  
 
DO NOT LEAVE YOUNG CHILDREN AND PETS IN UNATTENDED VEHICLES. CAR  
INTERIORS WILL REACH LETHAL TEMPERATURES IN A MATTER OF MINUTES.  
 
TO REDUCE RISK DURING OUTDOOR WORK, THE OCCUPATIONAL SAFETY AND  
HEALTH ADMINISTRATION RECOMMENDS SCHEDULING FREQUENT REST BREAKS IN  
SHADED OR AIR CONDITIONED ENVIRONMENTS. ANYONE OVERCOME BY HEAT  
SHOULD BE MOVED TO A COOL AND SHADED LOCATION. HEAT STROKE IS AN  
EMERGENCY! CALL 9 1 1.  
 
TAKE EXTRA PRECAUTIONS IF YOU WORK OR SPEND TIME OUTSIDE. WHEN  
POSSIBLE, RESCHEDULE STRENUOUS ACTIVITIES TO EARLY MORNING OR  
EVENING. KNOW THE SIGNS AND SYMPTOMS OF HEAT EXHAUSTION AND HEAT  
STROKE. WEAR LIGHTWEIGHT AND LOOSE FITTING CLOTHING WHEN POSSIBLE  
AND DRINK PLENTY OF WATER.  
 

 
 

 
 
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