San Francisco received what appears to be its first ever tornado warning - The Washington Post

1. San Francisco received what appears to be its first ever tornado warning  The Washington Post
2. Watch: Moment tornado strikes California parking lot  BBC.com
3. Scotts Valley residents in shock as city cleans up tornado damage  CBS San Francisco
4. Scotts Valley Tornado: Community cleans up, calms down after EF1 twister  ABC7 Bay Area