KCBSTwister spotted in Contra CostaSan Francisco ChronicleThe National Weather Service issued a tornado warning for eastern Contra Costa County today after a trained spotter reported a funnel cloud near Brentwood. The funnel cloud was about 8 miles south of Oakley and moving southeast at 5 mph as of 1:11 pm, ...Officials issue rare Bay area tornado warningSan Jose Mercury NewsBREAKING NEWS: Tornado Warning Issued for Contra Costa CountyKCBSTornado warning issued for Contra Costa CountyNews10.netKTVU.comall 45 news articles »