665  
WWUS75 KVEF 131033  
NPWVEF  
 
URGENT - WEATHER MESSAGE  
NATIONAL WEATHER SERVICE LAS VEGAS NV  
333 AM PDT THU AUG 13 2020  
 
AZZ002-003-036-CAZ520-522>527-NVZ015>017-020>022-132200-  
/O.CON.KVEF.EH.W.0007.200814T1800Z-200818T0400Z/  
LAKE HAVASU AND FORT MOHAVE-NORTHWEST DESERTS-  
LAKE MEAD NATIONAL RECREATION AREA-OWENS VALLEY-  
DEATH VALLEY NATIONAL PARK-WESTERN MOJAVE DESERT-  
EASTERN MOJAVE DESERT-MORONGO BASIN-CADIZ BASIN-  
SAN BERNARDINO COUNTY-UPPER COLORADO RIVER VALLEY-LINCOLN COUNTY-  
NORTHEAST CLARK COUNTY-WESTERN CLARK AND SOUTHERN NYE COUNTY-  
LAS VEGAS VALLEY-SOUTHERN CLARK COUNTY-  
INCLUDING LAKE HAVASU CITY, DESERT HILLS, TOPOCK, KINGMAN,  
GOLDEN VALLEY, DOLAN SPRINGS, VALENTINE, WIKIEUP, YUCCA,  
BULLHEAD CITY, OATMAN, MOHAVE VALLEY, BISHOP, INDEPENDENCE,  
LONE PINE, OLANCHA, FURNACE CREEK, STOVEPIPE WELLS, SHOSHONE,  
BARSTOW, DAGGETT, FORT IRWIN, BAKER, MOUNTAIN PASS,  
MITCHELL CAVERNS, MORONGO VALLEY, YUCCA VALLEY, TWENTYNINE PALMS,  
VIDAL JUNCTION, NEEDLES, CALIENTE, PIOCHE, PANACA, HIKO, ALAMO,  
RACHEL, MESQUITE, OVERTON, MOAPA, PAHRUMP, INDIAN SPRINGS,  
DESERT ROCK, AMARGOSA VALLEY, LAS VEGAS, NORTH LAS VEGAS,  
HENDERSON, BOULDER CITY, HOOVER DAM, LAUGHLIN, PRIMM,  
SEARCHLIGHT, AND CAL-NEV-ARI  
333 AM PDT THU AUG 13 2020 /333 AM MST THU AUG 13 2020/  
 
...EXCESSIVE HEAT WARNING REMAINS IN EFFECT FROM 11 AM PDT /11 AM  
MST/ FRIDAY TO 9 PM PDT /9 PM MST/ MONDAY...  
 
* WHAT...DANGEROUSLY HOT CONDITIONS WITH TEMPERATURES 110-125  
EXPECTED.  
 
* WHERE...PORTIONS OF NORTHWEST ARIZONA, SOUTHEAST CALIFORNIA  
AND SOUTHERN NEVADA.  
 
* WHEN...FROM 11 AM PDT /11 AM MST/ FRIDAY TO 9 PM PDT /9 PM  
MST/ MONDAY.  
 
* IMPACTS...EXTREME HEAT WILL SIGNIFICANTLY INCREASE THE  
POTENTIAL FOR HEAT RELATED ILLNESSES, PARTICULARLY FOR THOSE  
WORKING OR PARTICIPATING IN OUTDOOR ACTIVITIES.  
 
* ADDITIONAL DETAILS...HIGH TEMPERATURES OF 110-115 EXPECTED FOR  
THE LAS VEGAS VALLEY, MESQUITE, PAHRUMP, AND THE MORONGO BASIN;  
116-120 EXPECTED FOR THE COLORADO RIVER VALLEY INCLUDING LAKE  
HAVASU CITY, NEEDLES, BULLHEAD CITY AND LAUGHLIN; 120-125  
EXPECTED FOR FURNACE CREEK IN DEATH VALLEY NATIONAL PARK.  
 
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. YOUNG  
CHILDREN AND PETS SHOULD NEVER BE LEFT UNATTENDED IN VEHICLES  
UNDER ANY CIRCUMSTANCES.  
 
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. 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.  
 

 
 

 
 
NVZ018-019-132200-  
/O.CON.KVEF.HT.Y.0003.200814T1800Z-200818T0400Z/  
SHEEP RANGE-SPRING MOUNTAINS-RED ROCK CANYON-  
INCLUDING HAYFORD PK, THE TOWN OF MT CHARLESTON,  
AND RED ROCK CANYON  
333 AM PDT THU AUG 13 2020  
 
...HEAT ADVISORY REMAINS IN EFFECT FROM 11 AM FRIDAY TO 9 PM PDT  
MONDAY...  
 
* WHAT....HOT TEMPERATURES EXPECTED.  
 
* WHERE...SHEEP RANGE AND SPRING MOUNTAINS-RED ROCK CANYON.  
 
* WHEN...FROM 11 AM FRIDAY TO 9 PM PDT MONDAY.  
 
* IMPACTS...HOT TEMPERATURES MAY CAUSE HEAT ILLNESSES TO OCCUR.  
 
* ADDITIONAL DETAILS...FOR THOSE EXPECTING TO ESCAPE TO THE  
MOUNTAINS TO AVOID THE HEAT IN THE VALLEYS, TEMPERATURES IN THE  
MOUNTAINS ARE EXPECTED TO BE ABNORMALLY HOT AS WELL. HIGH  
TEMPERATURES WILL BE NEAR 90 DEGREES IN KYLE AND LEE CANYONS AND  
UP TO 107 IN RED ROCK CANYON. BE SURE TO TAKE NECESSARY HEAT  
PRECAUTIONS.  
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...  
 
LIMIT OUTDOOR ACTIVITIES...DRINK LOTS OF WATER OR OTHER  
NON-ALCOHOLIC...NON-CAFFEINATED BEVERAGES...WEAR LIGHT  
WEIGHT...LIGHT COLORED CLOTHING AND IF POSSIBLE...SPEND MORE TIME  
IN AIR CONDITIONED OR WELL VENTILATED PLACES.  
 

 
 

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