A tornado warning issued for San Francisco and parts of San Mateo County was based on radar-indicated rotation.

In San Francisco, authorities issued the first-ever tornado warning. Meanwhile, upstate New York saw heavy snow, the Midwest ...

(LOS ANGELES) -- An apparent tornado touched down in a small Northern California city Saturday, flipping cars, causing ...

A rare tornado in Northern California on Saturday caused quite a bit of damage as the spiraling vortex flipped cars, damaged ...

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

A major ice storm created treacherous driving conditions across Iowa and eastern Nebraska this weekend, while areas of ...

Dec. 14, 7 p.m. The San Francisco Recreation and Parks Department has confirmed that 73 trees at city parks were downed as a ...

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

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 ...

Inclement weather plagued areas of the US in the first half of the weekend, with dangerous conditions including heavy snow in ...

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