WWUS75 KVEF 202236 NPWVEF URGENT - WEATHER MESSAGE National Weather Service Las Vegas NV 336 PM PDT Fri Mar 20 2026 AZZ001>003-036-CAZ522>527-NVZ016-017-020>022-211200- /O.CON.KVEF.XH.W.0001.000000T0000Z-260323T0300Z/ 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-Northeast Clark County-Western Clark and Southern Nye County-Las Vegas Valley-Lake Mead National Recreation Area-Southern Clark County- Including the cities of Fort Irwin, Colorado City, Lake Havasu City, Indian Springs, Amargosa Valley, Yucca, Overton, Boulder City, Searchlight, Mountain Pass, Tuweep, Western Grand Canyon, Oatman, Needles, Furnace Creek, Desert Hills, Dolan Springs, Pipe Spring National Monument, Pahrump, Moapa, Baker, Twentynine Palms, Morongo Valley, Barstow, Vidal Junction, North Las Vegas, Stovepipe Wells, Hoover Dam, Desert Rock, Henderson, Mesquite, Bullhead City, Topock, Primm, Mohave Valley, Yucca Valley, Shoshone, Laughlin, Mt Trumbull, Valentine, Daggett, Cal-Nev-Ari, Las Vegas, Wikieup, Mitchell Caverns, Golden Valley, and Kingman 336 PM PDT Fri Mar 20 2026 /336 PM MST Fri Mar 20 2026/ ...EXTREME HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM PDT /8 PM MST/ SUNDAY... * WHAT...Dangerously hot temperatures climbing to near-30 degrees above seasonal normals. * WHERE...Portions of northwest Arizona, southeast California, and southern Nevada. * WHEN...Until 8 PM PDT /8 PM MST/ Sunday. * IMPACTS...Heat-related illnesses increase significantly during extreme heat events. * ADDITIONAL DETAILS...Extreme early-season heat coupled with high tourism rates will make this heat very dangerous, particularly for those not acclimated to the heat and/or traveling from cooler climates. Numerous daily and monthly heat records are in jeopardy through at least Sunday. 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. && $$ CAZ520-NVZ014-015-211200- /O.CON.KVEF.HT.Y.0001.000000T0000Z-260322T0300Z/ Owens Valley-Esmeralda and Central Nye County-Lincoln County- Including the cities of Panaca, Independence, Bishop, Rachel, Caliente, Beatty, Dyer, Alamo, Pioche, Goldfield, Silver Peak, Lone Pine, Olancha, and Hiko 336 PM PDT Fri Mar 20 2026 ...HEAT ADVISORY REMAINS IN EFFECT UNTIL 8 PM PDT SATURDAY... * WHAT...Hot temperatures climbing to near-30 degrees above seasonal normals. * WHERE...In California, Owens Valley. In Nevada, Esmeralda and Central Nye County and Lincoln County. * WHEN...Until 8 PM PDT Saturday. * IMPACTS...Heat-related illnesses increase significantly during extreme heat events. * ADDITIONAL DETAILS...Extreme early-season heat coupled with high tourism rates will make this heat very dangerous, particularly for thMSose not acclimated to the heat and/or traveling from cooler climates. Numerous daily and monthly heat records are in jeopardy through at least Sunday. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Take extra precautions when outside. Wear lightweight and loose-fitting clothing. Try to limit strenuous activities to early morning or evening. Take action when you see symptoms of heat exhaustion and heat stroke. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air-conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1. Monitor the latest forecasts and warnings for updates. && $$ For more information from the National Weather Service visit http://weather.gov/lasvegas AG