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

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

The National Weather Service initially sent the warning around 5:56 a.m. for northern San Mateo County and portions of ...

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

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

The fast-moving storm prompted warnings for San Francisco residents to take shelter, but few people have basements in the ...

A potent winter storm targeting Northern California this weekend brought what appears to be the first official tornado warning on record for the city of San Francisco on Saturday morning.

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

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

For the first time ever, the National Weather Service has issued a tornado warning for San Francisco as a system roared on ...