Inclement weather plagued the country, and in San Francisco, authorities issued the first-ever tornado warning.

Severe storms caused damage across northern California on Saturday, and for the first time in recorded history, the National ...

San Francisco residents awoke to a tornado warning, but none touched down there. It was the first such warning for the city ...

An apparent tornado touched down in a small Northern California city Saturday, flipping cars, causing significant damage and ...

A tornado touched down in the town of Scotts Valley on Dec. 14, as San Francisco issues first-ever tornado warning ...

A tornado near a mall in central California swept up cars, uprooted trees and sent several people to the hospital. In San ...

Inclement weather plagued areas of the U.S. over the weekend, with dangerous conditions including heavy snow in upstate New ...

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

Temperatures in the Sacramento Valley are expected to warm, too, after a high of 51 degrees expected Monday and an overnight ...

Tornado warning in downtown San Francisco ends, damage consistent with straight line winds. Severe storms continue, flood ...

A tornado near a mall in central California swept up cars, uprooted trees and sent several people to the hospital. In San ...

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