567  
WWUS75 KVEF 100928  
NPWVEF  
 
URGENT - WEATHER MESSAGE  
NATIONAL WEATHER SERVICE LAS VEGAS NV  
228 AM PDT THU SEP 10 2026  
 
AZZ002-570-571-576-CAZ522-526-527-NVZ016-017-020-025-026-101700-  
/O.CON.KVEF.XH.W.0006.260910T1700Z-260911T0300Z/  
LAKE HAVASU AND FORT MOHAVE-LAKE MEAD - AZ SIDE-LAKE MOHAVE - AZ  
SIDE-NORTHWEST DESERTS-DEATH VALLEY NATIONAL PARK-CADIZ BASIN-SAN  
BERNARDINO COUNTY-UPPER COLORADO RIVER VALLEY-NORTHEAST CLARK  
COUNTY-WESTERN CLARK AND SOUTHERN NYE COUNTY-LAS VEGAS VALLEY-  
LAKE MEAD - NV SIDE-LAKE MOHAVE - NV SIDE-  
INCLUDING THE CITIES OF GOLDEN VALLEY, MOAPA, DESERT ROCK, FURNACE  
CREEK, AMARGOSA VALLEY, INDIAN SPRINGS, DOLAN SPRINGS, SOUTH COVE,  
VALENTINE, TEMPLE BAR, BOULDER CITY, VIDAL JUNCTION, HENDERSON,  
KINGMAN, LAKE HAVASU CITY, NORTH LAS VEGAS, PAHRUMP, WIKIEUP, LAS  
VEGAS, STOVEPIPE WELLS, LAUGHLIN, HOOVER DAM, YUCCA, MESQUITE,  
NEEDLES, DESERT HILLS, BULLHEAD CITY, OVERTON, TOPOCK, AND SHOSHONE  
228 AM PDT THU SEP 10 2026 /228 AM MST THU SEP 10 2026/  
 
...EXTREME HEAT WARNING REMAINS IN EFFECT FROM 10 AM PDT /10 AM MST/  
THIS MORNING TO 8 PM PDT /8 PM MST/ THIS EVENING...  
 
* WHAT...DANGEROUSLY HOT LATE-SEASON CONDITIONS EXPECTED WITH HIGH  
TEMPERATURES UP TO 112 TO 116 IN DEATH VALLEY AND THE COLORADO  
RIVER VALLEY; UP TO 105 TO 110 IN THE LAS VEGAS VALLEY, MOAPA  
VALLEY, AND PAHRUMP VALLEY.  
 
* WHERE...PORTIONS OF NORTHWEST ARIZONA, SOUTHEAST CALIFORNIA, AND  
SOUTHERN NEVADA.  
 
* WHEN...FROM 10 AM PDT /10 AM MST/ THIS MORNING TO 8 PM PDT /8 PM  
MST/ THIS EVENING.  
 
* IMPACTS...HEAT-RELATED ILLNESSES INCREASE SIGNIFICANTLY DURING  
EXTREME HEAT.  
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...  
 
DRINK PLENTY OF FLUIDS, STAY IN AN AIR-CONDITIONED ROOM, STAY OUT OF  
THE SUN, AND CHECK UP ON RELATIVES AND NEIGHBORS.  
 
DO NOT LEAVE YOUNG CHILDREN AND PETS IN UNATTENDED VEHICLES. CAR  
INTERIORS WILL REACH LETHAL TEMPERATURES IN A MATTER OF MINUTES.  
 
TAKE EXTRA PRECAUTIONS WHEN OUTSIDE. WEAR LIGHTWEIGHT AND  
LOOSE-FITTING CLOTHING. TRY TO LIMIT STRENUOUS ACTIVITIES TO EARLY  
MORNING OR EVENING. TAKE ACTION WHEN YOU SEE SYMPTOMS OF HEAT  
EXHAUSTION AND HEAT STROKE.  
 
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.  
 
MONITOR THE LATEST FORECASTS AND WARNINGS FOR UPDATES.  
 
 
 
 
 
MELTZER  
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