SEATTLE (AP) -- The National Weather Service says minor flooding has begun or is forecast on two Western Washington rivers. A series of Pacific rain systems is expected to keep the state wet through the weekend, filling rivers and likely causing mudslides.

As of Friday evening, the Weather Service had issued flood warnings for the Skokomish River in Mason County and the Snoqualmie River near Carnation in east King County. Forecasters say minor flooding is occurring on the Skokomish and is forecast for the Snoqualmie, which often inundates farm land and low-lying roads.

A flood watch is in effect for most of Western Washington. The rain and melting snow will also fill rivers in the Spokane and Palouse basins.

The Weather Service says a cold front should dry things out by the middle of next week.

A mudslide Friday closed Highway 101 near Hoodsport for about five hours before crews were able to clear all lanes.

Copyright 2011 The AP.