WWUS75 KVEF 190703

NPWVEF



URGENT - WEATHER MESSAGE

National Weather Service Las Vegas NV

1203 AM PDT Thu Mar 19 2026



AZZ001>003-036-CAZ522>527-NVZ016-017-020>022-192200-

/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 Lake Havasu City, Hoover Dam, North Las

Vegas, Searchlight, Valentine, Tuweep, Baker, Desert Hills,

Colorado City, Mountain Pass, Needles, Shoshone, Henderson, Mt

Trumbull, Golden Valley, Vidal Junction, Amargosa Valley,

Overton, Western Grand Canyon, Pahrump, Mitchell Caverns, Dolan

Springs, Indian Springs, Daggett, Oatman, Barstow, Mesquite,

Wikieup, Yucca Valley, Kingman, Yucca, Las Vegas, Fort Irwin,

Topock, Moapa, Cal-Nev-Ari, Boulder City, Pipe Spring National

Monument, Stovepipe Wells, Bullhead City, Furnace Creek, Morongo

Valley, Mohave Valley, Desert Rock, Laughlin, Primm, and

Twentynine Palms

1203 AM PDT Thu Mar 19 2026 /1203 AM MST Thu Mar 19 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-NVZ014-015-192200-

/O.CON.KVEF.HT.Y.0001.000000T0000Z-260322T0300Z/

Owens Valley-Esmeralda and Central Nye County-Lincoln County-

Including the cities of Beatty, Lone Pine, Alamo, Independence,

Goldfield, Olancha, Silver Peak, Hiko, Pioche, Caliente, Rachel,

Dyer, Bishop, and Panaca

1203 AM PDT Thu Mar 19 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 

  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.



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



MW