Overview
- The National Weather Service issued winter storm warnings across parts of Washington, Oregon, Idaho, Colorado and New Mexico, with forecasts ranging from up to 19 inches in some lower passes to 12–48 inches at higher elevations in the Cascades and Olympics.
- Snow squall warnings near Spokane led to multiple crashes and a temporary shutdown of westbound I-90 at the Four Lakes interchange, with one lane reopened late Wednesday night as crews continued cleanup.
- In Central Oregon, the Cascades were set to add 3–7 inches Thursday before a Winter Storm Warning expires at 4 p.m., with clearing expected Friday and a milder, drier weekend.
- Mt. Bachelor reported heavy new snowfall and urged deep-snow precautions, warning of snow immersion suffocation and tree-well hazards and advising guests to ski or ride with a partner.
- Southern and central Colorado face Thursday night and Friday morning commute impacts under Winter Storm Warnings and Advisories, with 3–8 inches expected around the Pikes Peak region and higher totals on the Palmer Divide and in the mountains.