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 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 ...

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 ...

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

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 ...

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 ...

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