Each run of our computer models have been moving the low southward, and particularly the areas of big pressure gradients, which are associated with high winds. Let me show you a sequence of pressure forecasts from the UW WRF model for 10 PM tonight, 1 AM tonight, and 4 AM tomorrow morning. At 10 PM a 973 hPa low is offshore our coast, but the area of very large pressure gradient (change) is offshore and swings towards the Oregon coast. Expect big winds (gusts above 50 mph) along the Oregon coast at this time.
Here are the near surface sustained (NOT GUSTS) winds forecast by the modeling system (at roughly 30 ft above the surface). Red are sustained at 50 kts.
At 10 PM big winds offshore and extending to the Oregon coast.
We can check the model runs this evening for a final confirmation. And yes, there will be huge snows in the mountains. Here are the 72hr totals for the period ending 4 PM on Wednesday. MANY FEET.
When the atmosphere has juice, like in this event, everything seems to happen. I almost forgot! They will be a fairly major easterly wind event on the western foothills of the Cascades (Enumclaw, North Bend, you know what I mean). Winds gusting to 60 mph+ tonight!