Extreme Heat Warning Issued for US Southwest with Temperatures Up to 118°F

An Extreme Heat Warning is in effect until Friday, August 28, at 8 PM PDT for portions of northwest Arizona, southeast California, and southern Nevada. Dangerously hot conditions are expected, with temperatures reaching up to 115-118°F in Death Valley and the Colorado River Valley, and 108-112°F in the Las Vegas Valley. Overnight lows will remain high, posing a significant health risk.