Blue Norther, Columbia River Gorge variety. Just in the last hour, the wind has started howling at Schloss Rivrdog, less than 6 miles form the mouth of the Columbia River Gorge. The Gorge, as I've previously pointed out, acts like a funnel to channel cold Continental air into normally-mild western Oregon (it also channels hot dry air during the summer when a Low forms off the coast). The Dew Point has dropped 6 degrees in as many hours, showing the air mass change.
Presently, there is 5.1 millibars pressure difference between Troutdale (KTTD) and the Dalles (KDLS), and only 70 miles between the two cities. That difference is progged to increase to better than 8 millibars overnight, and by the time I awake (if I get any sleep), there will be steady 30-40 mph wind and gusts to 45-50 mph.
Thankfully, it will be Severe Clear though, no snow in sight.
We're getting the back end of this Arctic Outbreak. The Midwest and New England won't be so lucky though, and a monster Winter Storm is ginning up to bring wide swaths of 1 1/2 to 2 feet of snow, just in time to completely bollix up Super Bowl travel, but that's why I have a TeeVee.