Record Heat Wave Grips Western U.S.

Triple-Digit Temperatures:: Phoenix, Las Vegas, and California's Central Valley are likely to see temperatures exceeding 100°F (38°C).

Record Highs:: Dozens of cities, including Fresno, Salt Lake City, Reno, and Albuquerque, could break temperature records.

Elevated Fire Danger:: Increased risk of wildfires across Los Angeles, Ventura, and other counties.

Extreme Heat Watch:: Palm Springs, Coachella Valley, and parts of Imperial County are under an extreme heat watch.

Coastal Contrast:: While inland areas bake, coastal regions are experiencing milder temperatures, though still warmer than usual for May.

California: The Central Valley could see its earliest 102°F (39°C) temperature since 2013. Residents are advised to limit outdoor activities during peak heat hours.

Southern California: Temperatures in downtown Los Angeles, Pasadena, and Simi Valley are expected to climb into the 80s. Palm Springs could reach 108°F (42°C).

Bay Area: A moderate risk of heat illness is present, especially for vulnerable populations. Inland areas will be significantly warmer than coastal regions.

Sierra Nevada: Near-record heat is expected, with South Lake Tahoe potentially reaching 80°F (27°C).

Limit strenuous outdoor activities to early morning hours.

Stay in shaded or air-conditioned spaces.

Walk dogs before dawn or after dusk to avoid hot pavement.

Ensure horses and livestock have access to plenty of water.

Adults 65 and older

Infants

Athletes and outdoor workers

People with chronic diseases

Those without access to adequate cooling

Q: What is causing this heat wave?

Q: How long is the heat wave expected to last?

Q: What are the symptoms of heat illness?