Updated Sunday: 5:35 p.m.
After that soaking of a Saturday, skies quieted down considerably on Sunday. Sunny breaks alternated with showers and late day thundershowers, and highs topped out in the middle to upper 50s around Western Washington. We didn't add too much more precipitation to the gauge at Sea Tac, but at over 5 inches and counting, we've already picked up more rain at the airport in the first nine days of March than we normally do for the entire month!
The atmospheric river that hosed down Western Washington this weekend brought several more inches of rain down over the Olympic Peninsula and Cascades, pushing many rivers to flood stage last night. Most of them are now receding, and even the overflowing Skokomish River should drop below flood stage by late Monday.
A trough of low pressure rolling through the Northwest will get our work week off to an unsettled start. We'll still see some sun breaking through on Monday--probably plenty of it--but there will be an ongoing threat for more showers and thundershowers, too. Some of those heavier showers will include hail and locally gusty winds. Early morning lows will start in the lower 40s, and daytime highs will stay in the low to middle 50s. The snow level will drop back down to 3,500', so we'll see a few more inches of snow (rather than that warm rain we had this weekend) over the ski resorts.
By Tuesday, a building ridge of high pressure starts to dry us out and warm us up. Highs will hit the middle 50s beneath partly to mostly sunny skies on Tuesday, and Wednesday's highs will hover near 60 degrees in the warmest cities.
Clouds will thicken late Thursday in advance of a round of rain that comes in to wrap up the work week on Friday. Next weekend should start out dry, but Sunday is looking rainy and a bit gusty again.
Have a great week,
Meteorologist Shannon O'Donnell
The KOMO4 Forecast Team
For more weekend weather updates, follow me on Twitter @ShannonODKOMO