235
WWUS75 KVEF 090804
NPWVEF
URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE LAS VEGAS NV
104 AM PDT SUN AUG 9 2026
AZZ002-570-571-CAZ522-527-NVZ016-017-020-025-026-092200-
/O.EXT.KVEF.XH.W.0003.000000T0000Z-260811T0300Z/
LAKE HAVASU AND FORT MOHAVE-LAKE MEAD - AZ SIDE-LAKE MOHAVE - AZ
SIDE-DEATH VALLEY NATIONAL PARK-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 NORTH LAS VEGAS, HENDERSON, INDIAN SPRINGS,
NEEDLES, BOULDER CITY, OVERTON, AMARGOSA VALLEY, LAUGHLIN, TOPOCK,
TEMPLE BAR, LAS VEGAS, SHOSHONE, MESQUITE, STOVEPIPE WELLS, DESERT
HILLS, DESERT ROCK, FURNACE CREEK, BULLHEAD CITY, HOOVER DAM,
PAHRUMP, SOUTH COVE, LAKE HAVASU CITY, AND MOAPA
104 AM PDT SUN AUG 9 2026 /104 AM MST SUN AUG 9 2026/
...EXTREME HEAT WARNING NOW IN EFFECT UNTIL 8 PM PDT /8 PM MST/
MONDAY...
* WHAT...DANGEROUSLY HOT CONDITIONS WITH HIGHS OF 110 TO 115 IN THE
LAS VEGAS VALLEY, PAHRUMP, MOAPA VALLEY, AND THE COLORADO RIVER
VALLEY, AND UP TO 120 IN DEATH VALLEY. WARM OVERNIGHT TEMPERATURES
WILL RESULT IN LITTLE RELIEF OVERNIGHT.
* WHERE...LAKE MOHAVE, LAKE MEAD, LOWER COLORADO RIVER VALLEY / LAKE
HAVASU, DEATH VALLEY NATIONAL PARK, NORTHEAST CLARK COUNTY, WESTERN
CLARK AND SOUTHERN NYE COUNTY, AND LAS VEGAS VALLEY.
* WHEN...UNTIL 8 PM PDT /8 PM MST/ MONDAY.
* 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.
AZZ001-575-576-CAZ523>526-581-582-NVZ014-015-022-092200-
/O.CON.KVEF.XH.W.0003.000000T0000Z-260810T0300Z/
NORTHWEST PLATEAU-HUALAPAI MOUNTAINS-NORTHWEST DESERTS-WESTERN
MOJAVE DESERT-EASTERN MOJAVE DESERT-MORONGO BASIN-CADIZ BASIN-
OWENS VALLEY SOUTH-OWENS VALLEY NORTH-ESMERALDA AND CENTRAL NYE
COUNTY-LINCOLN COUNTY-SOUTHERN CLARK COUNTY-
INCLUDING THE CITIES OF HUALAPAI PEAK, TUWEEP, VALENTINE, FORT
IRWIN, MOUNTAIN PASS, YUCCA VALLEY, HIKO, CAL-NEV-ARI, BAKER,
SILVER PEAK, TWENTYNINE PALMS, BEATTY, PIOCHE, BARSTOW, CALIENTE,
INDEPENDENCE, MITCHELL CAVERNS, PANACA, DYER, PRIMM, WIKIEUP, YUCCA,
OLANCHA, KINGMAN, WESTERN GRAND CANYON, VIDAL JUNCTION, MT TRUMBULL,
GOLDEN VALLEY, DOLAN SPRINGS, RACHEL, PIPE SPRING NATIONAL MONUMENT,
BISHOP, ALAMO, SEARCHLIGHT, LONE PINE, COLORADO CITY, MORONGO VALLEY,
GOLDFIELD, AND DAGGETT
104 AM PDT SUN AUG 9 2026 /104 AM MST SUN AUG 9 2026/
...EXTREME HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM PDT /8 PM MST/
THIS EVENING...
* WHAT...DANGEROUSLY HOT CONDITIONS WITH HIGHS 110 TO 120 DEGREES
ACROSS THE MOJAVE DESERT. HIGHS 95 TO 105 DEGREES ACROSS MOST OF
THE SOUTHERN GREAT BASIN AND ARIZONA STRIP. LITTLE TO NO OVERNIGHT
RELIEF IS EXPECTED, PARTICULARLY IN THE MOJAVE DESERT WHERE LOWS OF
80 TO 95 DEGREES ARE FORECAST. THIS WILL RESULT IN MAJOR-TO-EXTREME
HEAT RISK.
* WHERE...PORTIONS OF NORTHWEST ARIZONA, SOUTHEAST CALIFORNIA, AND
SOUTH CENTRAL AND SOUTHERN NEVADA.
* 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.
CAZ519-521-NVZ018-019-092200-
/O.CON.KVEF.HT.Y.0002.000000T0000Z-260810T0300Z/
EASTERN SIERRA SLOPES-WHITE MOUNTAINS OF INYO COUNTY-SHEEP RANGE-
SPRING MOUNTAINS-RED ROCK CANYON-
INCLUDING THE CITIES OF HAYFORD PK, ASPENDELL, WESTGARD PASS, WHITNEY
PORTAL, MT CHARLESTON, RED ROCK CANYON, AND BRISTLECONE PINE
104 AM PDT SUN AUG 9 2026
..HEAT ADVISORY REMAINS IN EFFECT UNTIL 8 PM PDT THIS EVENING
* WHAT...HOT CONDITIONS EXPECTED WITH HIGHS 80 TO 90 DEGREES ABOVE
8000 FEET AND 90 TO 100 DEGREES BELOW 8000 FEET. THIS WILL RESULT
IN MODERATE HEAT RISK.
* WHERE...IN CALIFORNIA, EASTERN SIERRA SLOPES AND WHITE MOUNTAINS OF
INYO COUNTY. IN NEVADA, SHEEP RANGE AND SPRING MOUNTAINS-RED ROCK
CANYON.
* WHEN...UNTIL 8 PM PDT THIS EVENING.
* IMPACTS...HOT TEMPERATURES MAY CAUSE HEAT 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.
CO
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