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

The National Weather Service (NWS) issued the historic warning for parts of downtown San Francisco and northern San Mateo County shortly before 6 a.m. on Saturday, citing radar data that showed a ...

For the first time, the National Weather Service Bay Area issued a Tornado Warning for the city of San Francisco.

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

The National Weather Service issued a tornado warning for Allegheny and Westmoreland counties on Wednesday evening.The warning is now expired.More: Read current weather alerts for your ...

A tornado watch is issued for a broad area where potential tornadoes could form. A tornado warning indicates a tornado has been spotted by witnesses or detected by radar. "If any severe weather ...

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