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Western Washington forecast

Rain becomes lighter tonight, with showers lingering through Thursday. Drier and cooler Friday, with more rain over the weekend.


Rain will decrease tonight, with the main band of showers lifting northward.  Lows will drop to the upper 40s and lower 50s, as southwest winds weaken but remain breezy at 10 to 15 mph.  Rain will stay generally north of Everett most of Wednesday before moving south late in the day.  Highs will reach the mid and upper 50s.


The third atmospheric river in a week has spread areas of heavy rain back into western Washington.

There will be rain shadowing in the central Sound with heavier rainfall from Tacoma southward and north of Mount Vernon. It will be breezy up and down the Sound today.

Another 2-4 inches of rain is expected in the Olympics and North Cascades today and tonight. A Flood Watch has been issued for western Washington from Snohomish County northward, and Mason County northward on the Olympic Peninsula. This watch will be in effect until Thursday morning.

Rain showers Wednesday will remain mainly north of Everett with some drying for parts of the south Sound. However, a fast-moving cold front will zip through overnight Wednesday for a quick round of rain which will turn to showers and end Thursday morning. Skies will clear Thursday afternoon.

Friday will see a dry day with some sunshine and cooler temperatures. Highs will drop back to the mid-40s. Snow levels will drop to 3,000-4,000 feet.

Over the weekend, we should see a fast-moving weather system move through western Washington Saturday, but rainfall should be relatively light. 

Another stronger and wetter system moves in later Sunday into Monday for a wet and mild start to next week.