PG&E warns of blackouts, and 42 million are put under heat warnings as temperatures reach 115 degrees.

Firefighters raced through raging fires in Napa County Tuesday to save families as more than 30 wildfires scorched more than 120,000 acres across California, PG&E warned of blackouts, and 42 million people were put under heat warnings as temperatures topped 115 degrees.

Poster Comment:

Napa is wine country north of San Francisco.