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

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

A powerful storm swept through parts of Northern California early Saturday, knocking down trees, causing widespread power ...

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

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

A brief tornado warning alert was issued for residents in northern San Mateo County and downtown San Francisco.

The National Weather Service issued San Francisco's first-ever Tornado Warning on Saturday as a strong Level 3 storm moved through the region.

A potent winter storm targeting Northern California this weekend brought what appears to be the first official tornado warning on record for the city of San Francisco on Saturday morning.

A storm prompted the first tornado warning in San Francisco on Saturday and caused some damage. Some trees were toppled and ...

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

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