Storm prompts Flash Flood Warning in several North Bay cities

The North Bay is already dealing with mudslides. Now some cities also need to look out for flash flooding.

PETALUMA, Calif. (KGO) -- The North Bay is already dealing with mudslides. Now some cities also need to look out for flash flooding.

Petaluma and Penngrove are two of the places the National Weather Service says are vulnerable.

The warning is in effect until 5:15 p.m. Wednesday.

LIVE RADAR: Track storms as they move through the Bay Area with Live Doppler 7

Sebastopol, Forestville, and Graton are under a Flash Flood Warning until 5:45 p.m., partly because Green Valley Creek is overflowing its banks.

Residents are advised to move to higher ground and avoid walking or driving through flood waters.

RELATED: Storm triggering early problems on North Bay roadways

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PHOTOS: Storm slams Bay Area, downing trees and power lines

A large oak tree is seen across a road after falling in Lafayette, Calif. on Wednesday, Jan. 16, 2019.none

This image shows a Ginko tree knocked over by strong winds in Larkspur, Calif. on Thurday, Jan. 17, 2019.none

Wind was blamed for this big rig accident on the Richmond-San Rafael Bridge.none

A downed tree is seen in Mill Valley, Calif. on Wednesday, Jan. 16, 2019none

A powerful storm brought down power lines and trees all around the Bay Area.none

A big rig is seen on its side on the Richmond-San Rafael Bridge after wind knocked it over during a storm on Wednesday, Jan. 16, 2019.none

A powerful storm brought down power lines and trees all around the Bay Area.none

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