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

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

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

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

Some San Francisco residents were jolted awake by a tornado warning from the National Weather Service early Saturday.

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

A tornado warning was issued by the NWS San Francisco CA on Saturday at 5:51 a.m. "At 5:51 a.m., a severe thunderstorm ...

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

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

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