SEATTLE (AP) — The National Weather Service has issued a flood warning for the Tolt, Snoqualmie and Puyallup rivers through Wednesday because of heavy rain and melting snow in the Cascades.

The Weather Service expects minor to moderate flooding of farmlands and low-lying roads around Carnation, Duvall and Orting.

A flood watch is in effect through Thursday afternoon for most other rivers in Western Washington draining off the Cascades and western Olympics in Whatcom, Skagit, Snohomish, King, Pierce, Thurston, Lewis, Mason, Jefferson, Clallam and Grays Harbor counties.

Forecasters expect the storm to drop 4 to 7 inches of rain, mostly in the mountains.

– Copyright 2012 The Associated Press