An ice storm created treacherous driving conditions in Iowa and eastern Nebraska over the weekend. Meanwhile, San Francisco was under a tornado warning.

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 ...

A tornado near a mall in central California swept up cars, uprooted trees and sent several people to the hospital. In San Francisco, authorities issued the first-ever tornado warning. Elsewhere, ...

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 on Saturday as severe storms ...

Areas of patchy dense fog are present Sunday morning along with areas with frost in the Valley. Fog will lift by noon across ...

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

A very soggy start to the weekend really upped our rain and snow totals. Parts of the Sierra saw more than three feet of snow.

Inclement weather has plagued areas of the U.S. in the first half of the weekend, with dangerous conditions including heavy ...

A Level 3 storm has spawned a rare Tornado Warning in San Francisco and left behind a path of destruction across the Bay Area ...

Areas of patchy dense fog are present this morning along with areas with frost. Fog will lift by noon across the valley, but mostly cloudy skies persist as the next wave of moisture moves toward ...