538  
WWUS75 KPSR 141837  
NPWPSR  
 
URGENT - WEATHER MESSAGE  
NATIONAL WEATHER SERVICE PHOENIX AZ  
1137 AM MST SAT MAR 14 2026  
 
AZZ530-CAZ561>570-151100-  
/O.CON.KPSR.XH.A.0001.260318T1800Z-260323T0300Z/  
PARKER VALLEY-JOSHUA TREE NP EAST-IMPERIAL COUNTY SOUTHWEST-  
SALTON SEA-CHUCKWALLA MOUNTAINS-IMPERIAL COUNTY SOUTHEAST-  
IMPERIAL COUNTY WEST-IMPERIAL VALLEY-CHIRIACO SUMMIT-PALO VERDE  
VALLEY-CHUCKWALLA VALLEY-  
INCLUDING THE CITIES OF MIDLAND, PALO VERDE, PLASTER CITY,  
CALEXICO, MARTINEZ LAKE, WINTERHAVEN, MOUNTAIN SPRING, OCOTILLO,  
ALAMORIO, PARKER, CHIRIACO SUMMIT, IMPERIAL HOT MINERAL SPRINGS,  
RIPLEY, EHRENBERG, DESERT SHORES, EL CENTRO, COOLIDGE SPRINGS,  
COYOTE WELLS, WINONA, SALTON CITY, BLYTHE, AND BRAWLEY  
1137 AM MST SAT MAR 14 2026 /1137 AM PDT SAT MAR 14 2026/  
 
...EXTREME HEAT WATCH REMAINS IN EFFECT FROM WEDNESDAY MORNING  
THROUGH SUNDAY, MARCH 22...  
 
* WHERE...PORTIONS OF SOUTHWEST ARIZONA AND SOUTHEAST AND SOUTHERN  
CALIFORNIA.  
 
* WHEN...FROM WEDNESDAY MORNING THROUGH SUNDAY, MARCH 22.  
 
* IMPACTS...HEAT RELATED ILLNESSES INCREASE SIGNIFICANTLY DURING  
EXTREME HEAT EVENTS.  
 
* ADDITIONAL DETAILS...AFTERNOON HIGH TEMPERATURES BETWEEN 103 AND  
108 DEGREES.  
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...  
 
AN EXTREME HEAT WATCH MEANS THAT A PERIOD OF VERY HOT TEMPERATURES,  
EVEN BY LOCAL STANDARDS, MAY OCCUR. ACTIONS SHOULD BE TAKEN TO  
LESSEN THE IMPACT OF THE EXTREME HEAT.  
 
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.  
 
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.  
 

 
 

 
 
AZZ531>536-538-539-553-554-559-151100-  
/O.CON.KPSR.XH.A.0001.260319T1800Z-260323T0300Z/  
KOFA-YUMA-CENTRAL LA PAZ-AGUILA VALLEY-SOUTHEAST YUMA COUNTY-GILA  
RIVER VALLEY-TONOPAH DESERT-GILA BEND-NORTHWEST PINAL COUNTY-WEST  
PINAL COUNTY-SONORAN DESERT NATL MONUMENT-  
INCLUDING THE CITIES OF LIGURTA, WICKENBURG, VICKSBURG, BRENDA,  
SENTINEL, WINTERSBURG, VICKSBURG JUNCTION, GILA BEND, CASA  
GRANDE, HARCUVAR, GLADDEN, HASSAYAMPA, ARLINGTON, FLORENCE,  
QUARTZSITE, AGUILA, TONOPAH, YUMA, SALOME, COOLIDGE, PALM CANYON,  
KAKA, FORTUNA FOOTHILLS, AND CACTUS FOREST  
1137 AM MST SAT MAR 14 2026  
 
...EXTREME HEAT WATCH REMAINS IN EFFECT FROM THURSDAY MORNING  
THROUGH SUNDAY, MARCH 22...  
 
* WHERE...PORTIONS OF SOUTH CENTRAL AND SOUTHWEST ARIZONA.  
 
* WHEN...FROM THURSDAY MORNING THROUGH SUNDAY, MARCH 22.  
 
* IMPACTS...HEAT RELATED ILLNESSES INCREASE SIGNIFICANTLY DURING  
EXTREME HEAT EVENTS.  
 
* ADDITIONAL DETAILS...AFTERNOON HIGH TEMPERATURES BETWEEN 103 AND  
108 DEGREES.  
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...  
 
AN EXTREME HEAT WATCH MEANS THAT A PERIOD OF VERY HOT TEMPERATURES,  
EVEN BY LOCAL STANDARDS, MAY OCCUR. ACTIONS SHOULD BE TAKEN TO  
LESSEN THE IMPACT OF THE EXTREME HEAT.  
 
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.  
 
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.  
 

 
 

 
 
AZZ537-540-542>544-546-548-550-551-151100-  
/O.CON.KPSR.XH.A.0001.260319T1800Z-260323T0300Z/  
NORTHWEST VALLEY-BUCKEYE/AVONDALE-DEER VALLEY-CENTRAL PHOENIX-  
NORTH PHOENIX/GLENDALE-SCOTTSDALE/PARADISE VALLEY-EAST VALLEY-  
SOUTH MOUNTAIN/AHWATUKEE-SOUTHEAST VALLEY/QUEEN CREEK-  
INCLUDING THE CITIES OF AVONDALE, LIBERTY, PARADISE VALLEY,  
WITTMANN, SURPRISE, CHANDLER, BEARDSLEY, PEORIA, SUN LAKES, QUEEN  
CREEK, CIRCLE CITY, TEMPE, PHOENIX, SUN CITY WEST, MESA, GILBERT,  
CASHION, AND GOODYEAR  
1137 AM MST SAT MAR 14 2026  
 
...EXTREME HEAT WATCH REMAINS IN EFFECT FROM THURSDAY MORNING  
THROUGH SUNDAY, MARCH 22...  
 
* WHERE...THE NORTHWEST VALLEY OF THE PHOENIX METRO AREA, THE EAST  
VALLEY OF THE PHOENIX METRO AREA, BUCKEYE/AVONDALE, DEER VALLEY,  
CENTRAL PHOENIX, NORTH PHOENIX/GLENDALE, SCOTTSDALE/PARADISE  
VALLEY, SOUTH MOUNTAIN/AHWATUKEE, AND SOUTHEAST VALLEY/QUEEN CREEK.  
 
* WHEN...FROM THURSDAY MORNING THROUGH SUNDAY, MARCH 22.  
 
* IMPACTS...HEAT RELATED ILLNESSES INCREASE SIGNIFICANTLY DURING  
EXTREME HEAT EVENTS.  
 
* ADDITIONAL DETAILS...AFTERNOON HIGH TEMPERATURES BETWEEN 103 AND  
108 DEGREES.  
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...  
 
AN EXTREME HEAT WATCH MEANS THAT A PERIOD OF VERY HOT TEMPERATURES,  
EVEN BY LOCAL STANDARDS, MAY OCCUR. ACTIONS SHOULD BE TAKEN TO  
LESSEN THE IMPACT OF THE EXTREME HEAT.  
 
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.  
 
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.  
 

 
 

 
 
AZZ541-549-555-151100-  
/O.CON.KPSR.XH.A.0001.260319T1800Z-260323T0300Z/  
CAVE CREEK/NEW RIVER-FOUNTAIN HILLS/EAST MESA-APACHE  
JUNCTION/GOLD CANYON-  
INCLUDING THE CITIES OF FOUNTAIN HILLS, SCOTTSDALE, AND APACHE  
JUNCTION  
1137 AM MST SAT MAR 14 2026  
 
...EXTREME HEAT WATCH REMAINS IN EFFECT FROM THURSDAY MORNING  
THROUGH SUNDAY, MARCH 22...  
 
* WHERE...APACHE JUNCTION/GOLD CANYON, CAVE CREEK/NEW RIVER, AND  
FOUNTAIN HILLS/EAST MESA.  
 
* WHEN...FROM THURSDAY MORNING THROUGH SUNDAY, MARCH 22.  
 
* IMPACTS...HEAT RELATED ILLNESSES INCREASE SIGNIFICANTLY DURING  
EXTREME HEAT EVENTS.  
 
* ADDITIONAL DETAILS...AFTERNOON HIGH TEMPERATURES BETWEEN 103 AND  
108 DEGREES.  
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...  
 
AN EXTREME HEAT WATCH MEANS THAT A PERIOD OF VERY HOT TEMPERATURES,  
EVEN BY LOCAL STANDARDS, MAY OCCUR. ACTIONS SHOULD BE TAKEN TO  
LESSEN THE IMPACT OF THE EXTREME HEAT.  
 
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.  
 
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.  
 

 
 

 
 
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