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 ...

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

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

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

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

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

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.