An "extremely dangerous" heat wave is set to break daily temperature records across Western and Southern states through the holiday weekend, the National Weather Service warned Thursday.
The extreme heat comes as 28,000 people were forced to evacuate their homes because of a raging wildfire in Northern California. The Thompson Fire in Oroville, about 65 miles north of Sacramento, had grown to 3,568 acres and was only 7% contained Wednesday night.
California's Death Valley was 122 degrees.