A potent winter storm targeting Northern California this weekend brought what appears to be the first official tornado ...

A brief tornado warning alert was issued for residents in northern San Mateo County and downtown San Francisco.

More than 1 million people in the Bay Area were under the brief tornado warning, which was lifted by 6:15 a.m.

For the first time in recorded history, downtown San Francisco was issued a tornado warning on Saturday as severe storm ...

Rain and winds brought power outages to the Bay Area after a Saturday morning tornado warning. Elsewhere: lots of weekend ...

San Francisco residents were woken up by a tornado warning early Saturday morning during a powerful storm system that ...

Residents of the San Francisco area awoke Saturday to a meteorological rarity — a tornado warning. It was the first ever ...

San Francisco residents were woken up by a tornado warning early Saturday morning during a powerful storm system that ...

Linebacker De’Vondre Campbell’s refusal to play in the 49ers’ loss Thursday night will result in his termination from the ...

Some San Francisco residents were jolted awake by a tornado warning from the National Weather Service early Saturday.

SAN FRANCISCO (KGO) -- The National Weather Service forecast for the greater San Francisco Bay Area for Saturday calls for ...