I’d say that Flex Alert was a bit late. They should have issued it for yesterday when it was in the 90’s and 100’s around here, oh well. It’s actually cooling down. Right now, we are 16F degrees cooler than this same time yesterday. Our natural air conditioning (marine layer) must be kicking in. 
[size=83]Nearly 20,000 electric customers in the San Francisco Bay Area lost power because of high temperatures Sunday, a PG and E spokeswoman said. At 10:30 p.m. Sunday, 19,529 customers were in the dark with a majority of those in the East Bay and South Bay, spokeswoman Jacqueline Ratto said. Between 7:30 p.m. and 10:30 p.m. crews restored power to 22,500 customers. By 11 a.m. Monday, 2,944 customers still did not have power. The majority left without power are in the South Bay and the Easy Bay. "Severe heat in the Bay Area is causing widespread outages," Ratto said. [/size]
Source: http://hisz.rsoe.hu/alertmap/database/?pageid=event_desc&edis_id=PW-20170620-58694-USA