This is the Forecast Discussion from KSEA / Seattle WA NWS at Wednesday 01/22/2025 06:36:12 PST
SHORT TERM, today Wednesday into Friday:
Satellite imagery shows high clouds streaming over the area. Stratus spilling out of the Strait of Georgia covering the San Juans and northern slopes of the Olympics. The stratus is as far south as Port Ludlow at 3 am/11z.
Areas of freezing fog formed after midnight in the Southwest Interior and South Puget Sound. Temperatures were in the mid 20s to mid 30s.
Upper level ridge remaining in place over the area today with some high clouds moving through the ridge. Stratus and freezing fog not very deep and will dissipate by midday. Highs in the lower to mid 40s.
Ridge beginning to weaken tonight and retrograde westward as a shortwave moves over the top of the ridge into Haida Gwaii around 12z Thursday. Lows once again will be in the mid 20s to mid 30s.
Copy-pasted from the "Deep Weather" app on my iPhone 14