Full Notification

...FLOOD WATCH REMAINS IN EFFECT FROM 4 PM PST THIS AFTERNOON THROUGH THURSDAY AFTERNOON... The Flood Watch continues for

* Portions of northwest Washington and west central Washington, including the following counties, in northwest Washington, Clallam, Grays Harbor, Jefferson, Skagit, and Whatcom. In west central Washington, King, Lewis, Pierce, Snohomish, and Thurston.

* From 4 PM PST this afternoon through Thursday afternoon

* Rain has begun ahead of a warm front and the plume of subtropical moisture with it that will bring 2 to 5.5 inches of rain to the Olympics and Mount Rainier today and tonight, and 1 to 4 inches of rain to the Cascades north of Mount Rainier. The snow level will be near 8000 feet. A second frontal system will bring another 1 to 4 inches on Wednesday night and Thursday, with the snow level falling from 7000 feet to 4000 feet as the system moves through.

* The two systems in close succession presents a threat of flooding on rivers in Western Washington. Flooding could begin tonight or Wednesday. It looks like the threat is for a relatively minor flooding episode for most areas though some may get close to moderate severity. Some of the rivers to be at risk the earliest include the Snoqualmie, Nooksack, White, Tolt, and Skykomish Rivers. Many others are at risk as well. Check out our website and the Advanced Hydrologic Prediction Service webpage for details.

* AFFECTED AREAS: CLALLAM ... GRAYS HARBOR ... JEFFERSON ... KING ... LEWIS

Instructions:

A Flood Watch means there is a potential for flooding based on current forecasts. You should monitor later forecasts and be alert for possible Flood Warnings. Those living in areas prone to flooding should be prepared to take action should flooding develop.