The National Weather Service has issued a red flag warning from Sunday night through late Monday morning for the entire North Bay, East Bay and San Francisco Peninsula, along with the Santa Cruz mountains and the Diablo Range due to forecasts of northwest winds of 15 to 30 mph with gusts to 50 mph, along with lowering humidity.
The warning went into effect at 11 p.m. Sunday and was extended through 5 p.m. Monday, when winds are expected to subside.
During the warning period, "Winds will be strong enough to bring down trees, branches and cause power outages," the NWS advised. Fire fuel is at or near record dry levels for early December and outdoor burning is not recommended.
The San Francisco Fire Department sent out a series of tweets Sunday, issuing a wind advisory, beach hazard statement and high surf warning.