About 42 million people remain under heat alerts Friday as “dangerous and record-breaking” heat will persist in the West through Saturday, according to the National Weather Service.
Blistering temperatures are forecast to remain above 100 degrees Friday, leading to more record-setting temperatures for cities like Las Vegas, Salt Lake City, Boise, Idaho, and Spokane, Washington.
“This long-duration heat wave remains extremely dangerous and deadly if not taken seriously,” the weather service said in an update Friday. “Dozens of daily record high temperatures are forecast over much of the West through Saturday. Hazardous heat will expand in coverage over portions of the central and eastern U.S. late this weekend.”