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 ...

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

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

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

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

On Saturday, meteorologists with the National Weather Service went to San Francisco to assess storm damage, then pivoted to ...

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

A major ice storm has created treacherous driving conditions across Iowa and eastern Nebraska and prompted temporary closures ...

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

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