It’s the first widespread ice event of winter in the Gorge…It’s well frozen out there and we have heard of many accidents in the west end on I-84. Very icy in the hills around Washougal and Corbett too for the first time this winter. Stay away from the west end of the Gorge through late tomorrow morning if you don’t need to be there.
Anemometers are winding down to zero quickly at Biddle Butte and Corbett as ice accumulates, slows down, and then eventually stops the moving cups . You can see the sudden drop in wind speed on the graph above at Corbett. It’ll be calm within the hour there. Vista House is still blowing hard, maybe because it’s on the south side of the building and misses more of the blowing rain.
Temperatures have cooled down to 32 degrees in Troutdale so definitely some ice on objects and trees there. After MANY years of watching freezing rain events, I’ve noticed it needs to be down around 30-31 before roads ice up, even a a bit lower during the day. So I doubt any roads will ice up in Troutdale and Gresham since temperatures have bottomed out. You can see that on the graph above as well (the red part).
This is really just a bunch of showers in westerly flow bunching up against the Cascades. Because of that, Hood River has seen nothing more than flurries, The Dalles totally dry. And looking at the radar, I don’t have high hopes for seeing much else.
Okay, that’s it for the night. If you want to head east on I-84, I’d wait until the 2nd half of day, giving ODOT crews a chance to get the road surface in good shape.
Chief Meteorologist Mark Nelsen