"Social media reports of cars overturned and tree damage in and across Scotts Valley." Scientists shocked after first-ever ...

The tornado never touched down in San Francisco. But the conditions in the atmosphere with wind speed and direction were ...

San Francisco residents were woken up by a tornado warning early Saturday morning during a powerful storm system that battered the region with heavy rain and wind. It was the first-ever tornado ...

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

The National Weather Service issued San Francisco with a tornado warning on Saturday, the first in the city's history. ABC7 News Meteorologist Lisa Argen says the closest San Francisco ever got to ...

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

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

NBC Universal, Inc. A storm and wind gusts of up to 60 mph (96 kph) prompted the first-ever tornado warning in San Francisco and caused some damage in the Bay Area on Saturday. Parts of ...

For the first time in recorded history, downtown San Francisco was included in a tornado warning on Saturday as severe storms swept through the city, just one week after a tsunami warning ...