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

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

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

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 ...

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

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

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 ...