The National Weather Service in Seattle has issued a wind advisory for much of the Western Washington area, including Bainbridge Island, Bremerton and Seattle.

A wind advisory means that winds of 35 mph are expected. The advisory will remain in effect from 6 p.m. Friday, Dec. 29 through 4 a.m. Saturday, Dec. 30.

Strong south winds are forecast, and are expected to increase to 15 to 30 mph with gusts to 45 mph.

Strong winds will increase quickly early this evening, according to the National Weather Service, then ease overnight.

Officials warn that local power outages are possible.

The storm system hitting Western Washington is also expected to bring heavy rain.

Washington State Ferries is advising travelers to expect some delays on several routes, and said service on the Port Townsend-Coupeville route may be suspended in the event of strong southwesterly winds.

The Bainbridge Island-Seattle route is not likely to experience many impacts from the storm, but WSF said it’s possible that heavy traffic will delay service.

Also, in inclement weather boats may be “shortloaded” — not loaded to full capacity — to stabilize the vessels and keep more weight on the boat’s stern (back end).