Tonight, the passage of a weak front is resulting in a strong inland surge of marine air. What we call a northerly onshore push.
The visible satellite image at 7 PM Saturday shows a narrow, but weak, front moving into western Washington. There is virtually no precipitation with this feature. But it is strong enough to cause cool marine air to push inland, particularly in the Strait of Juan de Fuca, where it is REALLY blowing right now.
For example, take a look at the maximum hourly gusts at Smith Island, located over the eastern side of the Strait. WOW...gusts to 47 knots (54 mph)!
The UW WRF model has been forecasting the marine surge--here is the predicted gusts for 8 PM Saturday. Red area is strongest winds--50 knot gusts over the eastern Strait.
And now the good news for all mothers. Sunday really won't be bad at all. A few sprinklers in the AM at most--particularly over central Puget Sound (where a weak convergence zone will be). Low clouds in the morning, but plenty of breaks in the afternoon, particularly away from the central Sound. Highs around 63-65F. Plenty good enough to enjoy a nice walk with Mom at some park to admire the flowers. Mom's like that kind of thing. Plus flowers, cards, and chocolates.