A tornado touched down in Scotts Valley, California, an hour south of San Francisco. CNN affiliate KSBW speaks with residents ...

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

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

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

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

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

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

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

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

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

Residents in San Francisco and parts of San Mateo counties reported being abruptly awoken by a tornado warning issued by the ...