San Francisco Videos Show Trees Blown Down After First-Ever Tornado Warning

San Francisco experienced its first-ever tornado warning early Saturday, stunning residents as a powerful storm swept through the Bay Area, bringing heavy rain and winds.

The warning prompted a flood of social media posts from residents startled awake by emergency alerts. Videos and images shared online captured the aftermath, including toppled trees blocking roads and debris scattered across neighborhoods.

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 cyclonic rotation offshore. The warning lasted until 6:15 a.m.

However, no tornado ultimately touched down in San Francisco. A separate alert for a possible waterspout in San Francisco Bay, near …