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Extreme Heat Warning

Status

New Event Active alert

Start Time

Wed 08/20/2025 11:00 AM EDT

End Time

Sun 08/24/2025 02:00 AM EDT

Significance

Warning

Impacts

High impact

Full Alert Message

URGENT - WEATHER MESSAGE National Weather Service Las Vegas NV 1141 AM PDT Mon Aug 18 2025 ...EXTREME HEAT WARNING IN EFFECT FROM 8 AM PDT / MST WEDNESDAY TO 11 PM PDT / MST SATURDAY... * WHAT...Dangerously hot conditions with temperatures around 105 in Kingman, Golden Valley, Dolan Springs; around 110 in Las Vegas, Pahrump, Barstow, Yucca Valley, Twentynine Palms; around 115 in Laughlin, Bullhead City, Needles, Lake Havasu City; around 120 at Furnace Creek in Death Valley National Park. Expect minimal overnight relief. Major-to-Extreme Heat Risk. * WHERE...Portions of northwest Arizona, southeast California, and south central and southern Nevada. * WHEN...From 8 AM PDT / MST Wednesday to 11 PM PDT / MST Saturday. * 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.

Technical Header

AZZ001>003-036-CAZ522>527-NVZ015>017-020>022-191200- /O.UPG.KVEF.XH.A.0005.250820T1500Z-250824T0600Z/ /O.NEW.KVEF.XH.W.0009.250820T1500Z-250824T0600Z/ Northwest Plateau-Lake Havasu and Fort Mohave-Northwest Deserts- Lake Mead National Recreation Area-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-Lake Mead National Recreation Area- Southern Clark County- Including the cities of Stovepipe Wells, Pioche, Pipe Spring National Monument, Las Vegas, Western Grand Canyon, Desert Rock, Rachel, Henderson, Colorado City, Mt Trumbull, Topock, Hoover Dam, Oatman, Baker, Furnace Creek, Mountain Pass, Yucca, Alamo, Needles, Yucca Valley, Twentynine Palms, Laughlin, Morongo Valley, Boulder City, Moapa, Vidal Junction, Kingman, Bullhead City, Dolan Springs, North Las Vegas, Overton, Cal-Nev-Ari, Valentine, Hiko, Pahrump, Mohave Valley, Shoshone, Mesquite, Primm, Wikieup, Searchlight, Desert Hills, Daggett, Panaca, Barstow, Lake Havasu City, Golden Valley, Fort Irwin, Mitchell Caverns, Caliente, Tuweep, Amargosa Valley, and Indian Springs 1141 AM PDT Mon Aug 18 2025 /1141 AM MST Mon Aug 18 2025/