Special Weather Statement

East Columbia River Gorge-Lower Columbia Basin of Oregon-
Grande Ronde Valley-Wallowa County-
Northern Blue Mountains of Oregon-
Southern Blue Mountains of Oregon-John Day Basin-Ochoco-
John Day Highlands-
Foothills of the Northern Blue Mountains of Oregon-
Foothills of the Southern Blue Mountains of Oregon-
East Slopes of the Oregon Cascades-North Central Oregon-
Central Oregon-Kittitas Valley-Yakima Valley-
Lower Columbia Basin of Washington-
Foothills of the Blue Mountains of Washington-
Northwest Blue Mountains-East Slopes of the Washington Cascades-
Simcoe Highlands-
Including the cities of Arlington, The Dalles, Boardman,
Hermiston, Ione, Cove, Elgin, La Grande, Union, Enterprise,
Joseph, Wallowa, Meacham, Tollgate, Long Creek, North Powder,
Ukiah, Dayville, John Day, Mitchell, Monument, Spray, Brothers,
Paulina, Prairie City, Seneca, Athena, Pendleton, Pilot Rock,
Heppner, Condon, Fossil, Camp Sherman, La Pine, Sisters,
Sunriver, Dufur, Maupin, Moro, Bend, Madras, Prineville, Redmond,
Ellensburg, Thorp, Naches, Sunnyside, Toppenish, Yakima, Connell,
Prosser, Tri-Cities, Dayton, Waitsburg, Walla Walla,
Ski Bluewood Resort, Appleton, Cle Elum, Cliffdell, Goldendale,
and Bickleton
846 PM PDT Thu Nov 2 2017


A large upper level low pressure area is approaching the region
and will linger through the weekend. Significantly cooler
conditions will enter the interior Pacific Northwest. Rain and
snow will be mainly over the Cascades and Oregon on Friday with
snow levels between 2500 and 4000 feet. A break in the widespread
precipitation is expected Saturday and then another system with
precipitation and even colder air will arrive Saturday night and
Sunday. Snow levels will lower further to 500 to 1000 feet in
Washington and 1000 to 2500 feet in Oregon. Accumulating snow can
be expected at the higher pass levels, with the first snow of the
season possible as low as the valley floors. Some accumulating
snow is possible for the Yakima and Kittitas Valley Saturday Night
and Sunday. Accumulating snow is not expected for the lowest
elevations of the Columbia Basin, with a chilly rain prevailing.
Travelers to the higher elevations should be prepared for reduced
visibility in snow, and for slick roadways.