Following two days of extreme fire weatehr conditions, crews battling the Dixie Fire in Plumas and Butte counties are expected to get a bit of a respite Friday. The fire is now the third largest in state history, burning more than 432,000 acres. Last August, California saw rolling blackouts as the state's electricity grid was stressed during a major heat wave. With more hot weather expected this month, many are asking whether the state's power grid is prepared this time around. Guest: Elliot Mainzer, President and CEO of California Independent System Operater California will require that all healthcare workers be fully vaccinated against COVID-19 by September 30th. Hospitals will also need to verify that all visitors are vaccinated. Reporter: Raquel Maria Dillon, KQED With COVID-19 hospitalization rates on the rise, Fresno Mayor Jerry Dyer announced this week that all unvaccinated city employees will soon be required to take weekly covid tests.  Reporter: Madi Bolanos, Valley Public Radio Learn more about your ad choices. Visit megaphone.fm/adchoices