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

San Francisco experienced its first-ever tornado warning early Saturday, stunning residents as a powerful storm swept through ...

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

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

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

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

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

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

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

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

The National Weather Service has lifted the tornado threat for the city of San Francisco and a part of San Mateo County Saturday morning. The National Weather Service has lifted the tornado threat for ...