330  
WWUS75 KVEF 131907  
NPWVEF  
 
URGENT - WEATHER MESSAGE  
NATIONAL WEATHER SERVICE LAS VEGAS NV  
1207 PM PDT WED AUG 13 2025  
 
AZZ002-003-CAZ522-523-525>527-NVZ017-140300-  
/O.CON.KVEF.XH.W.0008.000000T0000Z-250814T0300Z/  
LAKE HAVASU AND FORT MOHAVE-NORTHWEST DESERTS-DEATH VALLEY  
NATIONAL PARK-WESTERN MOJAVE DESERT-MORONGO BASIN-CADIZ BASIN-SAN  
BERNARDINO COUNTY-UPPER COLORADO RIVER VALLEY-WESTERN CLARK AND  
SOUTHERN NYE COUNTY-  
INCLUDING THE CITIES OF INDIAN SPRINGS, FURNACE CREEK, DOLAN  
SPRINGS, AMARGOSA VALLEY, DESERT ROCK, TWENTYNINE PALMS, BARSTOW,  
GOLDEN VALLEY, WIKIEUP, TOPOCK, YUCCA, MORONGO VALLEY, KINGMAN,  
VALENTINE, STOVEPIPE WELLS, LAKE HAVASU CITY, NEEDLES, VIDAL  
JUNCTION, DAGGETT, YUCCA VALLEY, SHOSHONE, FORT IRWIN, DESERT  
HILLS, AND PAHRUMP  
1207 PM PDT WED AUG 13 2025 /1207 PM MST WED AUG 13 2025/  
 
...EXTREME HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM PDT /8 PM MST/  
THIS EVENING...  
 
* WHAT...DANGEROUSLY HOT CONDITIONS WITH HIGH TEMPERATURES BETWEEN  
103 AND 106 IN KINGMAN, GOLDEN VALLEY, AND DOLAN SPRINGS; BETWEEN  
108 AND 112 IN BARSTOW-DAGGETT, TWENTYNINE PALMS, AND YUCCA  
VALLEY; BETWEEN 112 AND 116 IN LAKE HAVASU CITY, NEEDLES, AND FORT  
MOHAVE; BETWEEN 118 AND 122 AT FURNACE CREEK IN DEATH VALLEY  
NATIONAL PARK. MODERATE-TO-MAJOR HEAT RISK.  
 
* WHERE...IN ARIZONA, LAKE HAVASU AND FORT MOHAVE AND NORTHWEST  
DESERTS. IN CALIFORNIA, CADIZ BASIN, DEATH VALLEY NATIONAL PARK,  
MORONGO BASIN, SAN BERNARDINO COUNTY-UPPER COLORADO RIVER VALLEY,  
AND WESTERN MOJAVE DESERT. IN NEVADA, WESTERN CLARK AND SOUTHERN  
NYE COUNTY.  
 
* WHEN...UNTIL 8 PM PDT /8 PM MST/ THIS EVENING.  
 
* IMPACTS...HEAT-RELATED ILLNESSES INCREASE SIGNIFICANTLY DURING  
EXTREME HEAT EVENTS.  
 
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.  
 

 
 

 
 
AZZ036-CAZ524-NVZ016-020>022-140300-  
/O.CON.KVEF.XH.W.0008.000000T0000Z-250814T0300Z/  
LAKE MEAD NATIONAL RECREATION AREA-EASTERN MOJAVE DESERT-  
NORTHEAST CLARK COUNTY-LAS VEGAS VALLEY-LAKE MEAD NATIONAL  
RECREATION AREA-SOUTHERN CLARK COUNTY-  
INCLUDING THE CITIES OF MOHAVE VALLEY, CAL-NEV-ARI, HOOVER DAM,  
MITCHELL CAVERNS, LAUGHLIN, SEARCHLIGHT, HENDERSON, BAKER,  
BOULDER CITY, MOUNTAIN PASS, OVERTON, LAS VEGAS, MESQUITE, MOAPA,  
OATMAN, NORTH LAS VEGAS, BULLHEAD CITY, AND PRIMM  
1207 PM PDT WED AUG 13 2025 /1207 PM MST WED AUG 13 2025/  
 
...EXTREME HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM PDT /8 PM MST/  
THIS EVENING...  
 
* WHAT...DANGEROUSLY HOT CONDITIONS WITH HIGH TEMPERATURES BETWEEN  
108 AND 114 IN LAS VEGAS, LAKE MEAD NATIONAL RECREATION AREA,  
MESQUITE, PAHRUMP, AND BAKER. MODERATE-TO-MAJOR HEAT RISK.  
 
* WHERE...LAKE MEAD NATIONAL RECREATION AREA, EASTERN MOJAVE DESERT,  
NORTHEAST CLARK COUNTY, LAS VEGAS VALLEY, AND SOUTHERN CLARK  
COUNTY.  
 
* WHEN...UNTIL 8 PM PDT /8 PM MST/ THIS EVENING.  
 
* IMPACTS...HEAT-RELATED ILLNESSES INCREASE SIGNIFICANTLY DURING  
EXTREME HEAT EVENTS.  
 
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.  
 

 
 

 
 
AZZ001-CAZ520-NVZ014-015-018-019-140300-  
/O.CON.KVEF.HT.Y.0002.000000T0000Z-250814T0300Z/  
NORTHWEST PLATEAU-OWENS VALLEY-ESMERALDA AND CENTRAL NYE COUNTY-  
LINCOLN COUNTY-SHEEP RANGE-SPRING MOUNTAINS-RED ROCK CANYON-  
INCLUDING THE CITIES OF BEATTY, RACHEL, WESTERN GRAND CANYON,  
LONE PINE, PANACA, PIPE SPRING NATIONAL MONUMENT, DYER, MT  
CHARLESTON, OLANCHA, CALIENTE, INDEPENDENCE, COLORADO CITY,  
HAYFORD PK, HIKO, MT TRUMBULL, BISHOP, GOLDFIELD, PIOCHE, SILVER  
PEAK, ALAMO, TUWEEP, AND RED ROCK CANYON  
1207 PM PDT WED AUG 13 2025 /1207 PM MST WED AUG 13 2025/  
 
...HEAT ADVISORY REMAINS IN EFFECT UNTIL 8 PM PDT /8 PM MST/ THIS  
EVENING...  
 
* WHAT...HOT CONDITIONS WITH HIGH TEMPERATURES BETWEEN BETWEEN 82  
AND 88 IN MT. CHARLESTON, KYLE CANYON, AND LEE CANYON; BETWEEN 96  
AND 102 IN CALIENTE, GOLDFIELD, DYER, AND COLORADO CITY; BETWEEN  
102 AND 106 IN BISHOP, INDEPENDENCE, OLANCHA, HIKO, AND RED ROCK  
CANYON. MODERATE-TO-MAJOR HEAT RISK.  
 
* WHERE...IN ARIZONA, NORTHWEST PLATEAU. IN CALIFORNIA, OWENS  
VALLEY. IN NEVADA, ESMERALDA AND CENTRAL NYE COUNTY, LINCOLN  
COUNTY, SHEEP RANGE, AND SPRING MOUNTAINS-RED ROCK CANYON.  
 
* WHEN...UNTIL 8 PM PDT /8 PM MST/ THIS EVENING.  
 
* IMPACTS...HOT TEMPERATURES MAY CAUSE HEAT-RELATED ILLNESSES.  
 
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.  
 
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.  
 

 
 

 
 
FOR MORE INFORMATION FROM THE NATIONAL WEATHER SERVICE VISIT  
HTTP://WEATHER.GOV/LASVEGAS  
 
MS  
 
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