Tornado warning wakes San Francisco: ‘Take cover now’

At 5:53 a.m. on Saturday, phones blared across San Francisco with an unusual warning: Tornado.

The National Weather Service issued the warning — which expired just minutes later — writing, “At 551 AM PST, a severe thunderstorm capable of producing a tornado was located near Daly City, moving northeast at 45 mph.”

The fast-moving rotation approaching Ocean Beach prompted the historic alert for the whole city and northern Peninsula — the first one on record for the area, National Weather Service meteorologist Dalton Behringer told The Standard.