The National Weather Service said video and witness reports confirm a tornado touched down in Denair, about 13 miles southeast of Modesto, on Sunday afternoon.
Witnesses posted photos online of a funnel cloud looming over city streets.
The Modesto Bee reports the twister swept along nearly a mile of Zeering Road, toppling trees and fences, breaking windows and ripping off part of a church roof.
The tornado came as another cold storm sweeps across California. Hail and thunderstorms were reported in the Sierra Nevada foothills. Forecasters said up to 8 inches of snow could fall at the 5000 feet level, with possibly a foot at the highest peaks.
Denair tornado damaged some houses and knocked down several trees. No known injuries at this time. pic.twitter.com/43fOKB99bw— Stanislaus Sheriff (@StanSheriff) November 15, 2015
Tornado traveled down Zeering Road in Denair headed east out of town. pic.twitter.com/H1lg6NO9y3— Stanislaus Sheriff (@StanSheriff) November 15, 2015
Church roof has been damaged by the Denair tornado. pic.twitter.com/mbjrpVFz1P— Stanislaus Sheriff (@StanSheriff) November 15, 2015