Severe storms caused damage across northern California on Saturday, and for the first time in recorded history, the National Weather Service (NWS) issued a tornado warning for the city of San Francisco. The warning went out just before 6 a.m. local time on ...

For the first time in recorded history, downtown San Francisco was included in a tornado warning on Saturday as severe storms swept through the city, just one week after a tsunami warning triggered widespread panic in the region.

San Francisco residents were woken up by a tornado warning early Saturday morning during a powerful storm system that battered the region with heavy rain and wind.