This is going to be an extraordinary weekend...dry, generally sunny, with temps in the lowlands around 70F. The satellite picture this morning showed some low clouds on the coast that pushed into the SW interior...but that will rapidly burn back (see image). Just to remind you of the rain, I have attached a plot of the average May rainfall (blue) and observed this month (red). Roughly double normal at Sea Tac.
A weak front will approach very late Monday..but that will not mess up the holiday weekend.
Watch for the Sound Breeze developing during the late afternoons...this is the northerly wind that blows southward into Puget Sound between 3 and 8 PM on warm summer afternoons. It is essentially a giant sea breeze between the interior of western WA (mostly land) and the waters of the Strait of Juan de Fuca and Georgia.
