Extreme Heat Warnings Issued for Millions in US Western States

Millions of Americans across several western states, including parts of Arizona and California, are under Extreme Heat Warnings issued by the National Weather Service. Temperatures are forecast to climb into the triple digits, with some locations potentially reaching 118 degrees Fahrenheit. Dangerous conditions are expected through at least Thursday, raising the risk of heat-related illnesses. Areas affected include the Phoenix metropolitan area, southwestern Arizona, southeastern California, Tucson, Coachella Valley, and San Diego County deserts.