Extreme heat across the U.S. Southwest will build on Wednesday and is expected to last for several days. In Southern California, there are major fire and health concerns.

Firefighters are working to contain a grass fire that has burned dozens of acres on the southern end of El Dorado County on Wednesday. Cal Fire's incidents webpage shows the Coyote Fire has burned about 60 acres in the Coyoteville area, about 21 miles southeast of Placerville.