In my blog of Tuesday, I noted the potential for snow over northern Oregon...and the model forecast was correct--if anything it underplayed it a bit. 1-6 inches of snow has fallen over portions of western Oregon and over southwest Washington as far north as Longview as well. Some VERY light snow has even gotten as far north as south Sound.
Here is the 6:30 PM radar image, you can see the heavier amounts around Portland/Vancouver...this area is lifting out to the east-northeast, so Seattle should not see anything.
This morning's WRF model forecast (started from data at 4 AM) was pretty reasonable...here is the 24 h amount ending 4 AM on Friday. Some totals up to 8-10 inches...and this may prove to be quite accurate.
In fact, next week the models indicated are that California is about to be hit by a series of atmospheric rivers--currents of large amounts of moisture streaming out of the subtropics--that should continue the precipitation for quite a while. Here is a sample of the moisture associated with the atmospheric river forecast to occur on Saturday at 4 PM.
Want to see what the Portland area is like...here is picture taken by Steve Pierce at his house in Vancouver Washington...he is AMS Chapter president in Portland.
Finally, here is an interesting tidbit. Atlanta has a lot in common with Seattle regarding snow problems. They have lots of hills. Significant snow is rare. They are generally warm enough so that the subsoils are fairly warm...which tends to melt snow into slush...then if it turns cold..they get ice.
And their mayor is in big trouble.