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

Two meteorologists for the National Weather Service's Bay Area office set out on Saturday to survey the damage caused by two ...

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

A potent winter storm targeting Northern California this weekend brought what appears to be the first official tornado ...

Powerful storms swept through parts of Northern California on Saturday, knocking down trees, causing widespread power outages ...

San Francisco residents were woken up by a tornado warning early Saturday morning during a powerful storm system that ...

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 ...

The National Weather Service initially sent the warning around 5:56 a.m. for northern San Mateo County and portions of ...

Rain and winds brought power outages to the Bay Area after a Saturday morning tornado warning. Elsewhere: lots of weekend ...

Less than two weeks after a tsunami warning, residents were jolted awake before 6 a.m. to consider a new potential disaster ...

More than 1 million people in the Bay Area were under the brief tornado warning, which was lifted by 6:15 a.m.