Overview
- National Weather Service extreme-heat warnings remain in parts of California, Nevada and Arizona through Sunday, with temperatures 20 to 40 degrees above normal affecting roughly 9.5 million people.
- More than 150 daily and about 50 monthly records have fallen since Tuesday, including 105°F in Phoenix, 96°F in Las Vegas with the local NWS office at 97°F, 105°F in Death Valley and a reported 112°F in Yuma.
- Forecasters say the pattern will persist into next week as the heat dome shifts east, threatening additional records from the Southwest into the Great Plains.
- Red-flag fire warnings were posted across large parts of Texas, Oklahoma and Kansas as hot, dry, windy conditions raise wildfire danger.
- Public-health impacts mounted, with Las Vegas opening more than 40 cooling stations, Phoenix closing popular hiking trails and moving spring training game times, and Glendale firefighters transporting about 30 people for heat illness.