Posted by Rufus La Lone on

Monday May 20
Our wx looks unsettled between now and the start of the holiday weekend.  Here's the latest reveal on the charts. 
Today, the 20th, will be delightful & mild.  Later this evening, a system will move into the PNW from the NW.  Expect rain/showers to expand through western WA into OR before sunrise.  This is a rather wet system, as compared to the previous.  Colder air will arrive behind the steady rain later on Tue, with showers remaining in play through early Wed the 22nd.  Clearing on Wed, setting up another pleasant, although COOL, Thu with sunshine at times.  Unsettled conditions return overnight Thu, for a ‘repeat’ of the pattern early this week.  Rain/showers arrive, north-to-south, for a damp & unseasonably chilly Fri the 24th.  
Memorial Day Weekend:  While the showers will decrease overnight Fri, Sat may have a few lingering showers, esp over the Puget Sound, along with cloudiness.  Still, Sat of the holiday weekend should present as generally dry.  Sunday & Mon are looking just fine, with sunshine and mild temperatures; gentle breezes.
Post-holiday week is trending dry & mild early, turning rather windy in the Columbia Gorge (from the west) later in the week, as an onshore flow increasings.  It may be a bit cloudy over the Puget Sound regions mid-week.  
The first weekend of June is trending dry & mild on Sat, with increasing clouds & chance for showers - mainly over the Puget Sound - on Sunday.
How much precip?  This week - between overnight Mon & Wed afternoon - be ready for about a half inch of rain around the Puget Sound / BC; and less than 1/4”, if that, south of Portland.  Similar amounts are expected in the ‘repeat’ pattern charting for this coming Fri the 24th.
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