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

The tornado never touched down in San Francisco. But the conditions in the atmosphere with wind speed and direction were ...

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

Severe storms caused damage across northern California on Saturday, and for the first time in recorded history, the National ...

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

San Francisco experienced its first-ever tornado warning early Saturday, stunning residents as a powerful storm swept through ...

Less than two weeks after a tsunami warning, residents were jolted awake before 6 a.m. to consider a new potential disaster ...

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

A powerful winter storm battered the Bay Area Friday night into Saturday, causing widespread issues, power outages and downed ...

A strong atmospheric river drenched Northern California with heavy rains and damaging wind gusts Saturday, leaving well over ...

The National Weather Service issued San Francisco with a tornado warning on Saturday, the first in the city's history.

A tornado warning issued for San Francisco and parts of San Mateo County was based on radar-indicated rotation.