California wildfires erupted Wednesday in rural areas, racing through bone-dry brush and prompting evacuations as the state sweltered under a heat wave that could last through Labor Day.
Gov. Gavin Newsom declared a state of emergency with temperatures expected to be 10 to 20 degrees above normal, and urged people to help reduce demand for electricity by turning their thermostats up to 85 degrees (29 Celsius) if they won't be at home over the holiday weekend.