A week of weird weather, particularly in California, continued today with a tornado warning in Contra Costa County.
A storm system prompted the warning around 1:20 p.m, but the warning was lifted at 2PM PST. A funnel cloud was spotted in the Brentwood/Discovery Bay area, but there were no reports of the cloud touching down or causing any damage or injuries. The warning was originally slated to lift at 1:35PM local time, but was extended for an extra 25 minutes.
The storm system responsible for the warning has since lifted.
[Source]
