Heavy Snow in the Northwest; Wintry Mix from the Great Lakes to Northeast

Two cold fronts will pass through the Northwest U.S. this week with the main impact being heavy mountain snow across the Cascades, and northern Rockies. A quick moving storm system will bring mixed precipitation including some freezing rain to the Upper Midwest and Great Lakes today then the Northeast U.S. tonight into Wednesday. Read More >

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Last Map Update: Tue, Jan 6, 2026 at 2:14:13 pm PST

Watches, Warnings & Advisories

National Weather Service Seattle/Tacoma, WA

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Winter Storm Warning

Gale Warning

Winter Weather Advisory

Coastal Flood Advisory

High Surf Advisory

Small Craft Advisory

Hazardous Seas Warning

Wind Advisory

Heavy Cascade Snow

Sneaker Waves

High Surf Mid-week

Heavy Cascade snow is expected for elevations above 2,500 feet Jan. 6-7, resulting in snowy and hazardous travel conditions over the passes on highways 26, 20, and 58. Be prepared for winter driving conditions if you must travel over the passes. Snow will be heaviest Tuesday evening/night and again Wednesday afternoon/evening. One to two feet of snow is expected to fall at pass level between 4am Tuesday and 4am Thursday.

High surf conditions are expected along the south Washington, and North and central Oregon Coasts January 7th through the 8th. Large waves with hazardous surf conditions are expected with breakers up to 25 ft. Destructive waves may wash over beaches, jetties, and other structures unexpectedly. People can be swept off rocks and jetties and drown while observing high surf. Minor beach erosion may damage coastal properties and buildings. Higher than normal water run-up is expected on beaches and low- lying shoreline.

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Heavy Snow in the Northwest; Wintry Mix from the Great Lakes to Northeast

NWS Forecast Office Portland, OR