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 ...

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

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

The National Weather Service issued a tornado warning Saturday morning for downtown San Francisco and San Mateo County just ...

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.

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

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

A major ice storm has created treacherous driving conditions across Iowa and eastern Nebraska and prompted temporary closures ...

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

Officials in San Francisco issued the city’s first ever tornado warning while on the opposite coast New York State was hit by ...