403
WWUS75 KVEF 210728
NPWVEF
URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE LAS VEGAS NV
1228 AM PDT TUE JUL 21 2026
AZZ002-570-571-576-CAZ522>527-NVZ016-017-020-022-025-026-221200-
/O.NEW.KVEF.XH.A.0002.260723T1700Z-260728T0300Z/
LAKE HAVASU AND FORT MOHAVE-LAKE MEAD - AZ SIDE-LAKE MOHAVE - AZ
SIDE-NORTHWEST DESERTS-DEATH VALLEY NATIONAL PARK-WESTERN MOJAVE
DESERT-EASTERN MOJAVE DESERT-MORONGO BASIN-CADIZ BASIN-SAN
BERNARDINO COUNTY-UPPER COLORADO RIVER VALLEY-NORTHEAST CLARK
COUNTY-WESTERN CLARK AND SOUTHERN NYE COUNTY-LAS VEGAS VALLEY-
SOUTHERN CLARK COUNTY-LAKE MEAD - NV SIDE-LAKE MOHAVE - NV SIDE-
INCLUDING THE CITIES OF VALENTINE, BULLHEAD CITY, BAKER, DESERT ROCK,
TOPOCK, NORTH LAS VEGAS, GOLDEN VALLEY, PRIMM, DOLAN SPRINGS, FORT
IRWIN, TEMPLE BAR, MORONGO VALLEY, SEARCHLIGHT,
CAL-NEV-ARI, STOVEPIPE WELLS, WIKIEUP, LAS VEGAS, VIDAL JUNCTION,
HOOVER DAM, LAKE HAVASU CITY, DAGGETT, FURNACE CREEK, AMARGOSA
VALLEY, DESERT HILLS, HENDERSON, BARSTOW, PAHRUMP, LAUGHLIN, BOULDER
CITY, SHOSHONE, SOUTH COVE, MOUNTAIN PASS, OVERTON, MITCHELL CAVERNS,
KINGMAN, YUCCA, MOAPA, INDIAN SPRINGS, YUCCA VALLEY, TWENTYNINE
PALMS, MESQUITE, AND NEEDLES
1228 AM PDT TUE JUL 21 2026 /1228 AM MST TUE JUL 21 2026/
...EXTREME HEAT WATCH IN EFFECT FROM THURSDAY MORNING THROUGH MONDAY
EVENING...
* WHAT...DANGEROUSLY HOT CONDITIONS POSSIBLE. AFTERNOON TEMPERATURES
IN THE DESERT VALLEYS WILL CLIMB INTO THE 108 TO 114 DEGREE RANGE,
AND MAY EXCEED 115 ALONG THE COLORADO RIVER VALLEY, AND 120 DEATH
VALLEY.
* WHERE...PORTIONS OF NORTHWEST ARIZONA, SOUTHEAST CALIFORNIA, AND
SOUTHERN NEVADA INCLUDING THE GREATER MOJAVE DESERT REGION.
* WHEN...FROM THURSDAY MORNING THROUGH MONDAY 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.
MONITOR THE LATEST FORECASTS AND WARNINGS FOR UPDATES.
CO
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