Prolonged Atmospheric River in the Northwest; Snow in the North-Central US

A prolonged atmospheric river will bring heavy rainfall which may lead to widespread urban and river flooding, heavy mountain snow, along with gusty winds to the Pacific Northwest into the northern Rockies through much of the week. A clipper will bring a period of snow across the upper Midwest and the Great Lakes into Tuesday, before a stronger system bring more wintry impacts. Read More >

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Last Map Update: Tue, Dec 9, 2025 at 1:30:11 am PST

Watches, Warnings & Advisories

National Weather Service Seattle/Tacoma, WA

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Avalanche Warning

Flood Advisory

Wind Advisory

Avalanche Watch

Flood Watch

Special Weather Statement

Hydrologic Outlook

Strong Winds Mon-Tue

Flood Watch: Chelan County

Flood Watch: North ID

Avalanche Warning: North ID

Gusty southwesterly winds will increase Monday and peak during the late afternoon and evening hours with sustain winds 20-35 mph and gusts 40-55 mph across Eastern Washington and North Idaho.

A warm and wet storm will move through Monday through Tuesday, bringing a chance of mud and rockslides in steep terrain and burn scars to Chelan County. A Flood Watch is in effect until 4 PM Thursday. Moderate to heavy rain will lead to excessive runoff and subsequent flooding of smaller streams and creeks.

An extended period of moderate to heavy rain and snowmelt is in the forecast for North ID Monday through Thursday. Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone areas. In addition, there will be an increased risk for rock slides in steep terrain.

An Avalanche Warning has been issued by the Idaho Panhandle Avalanche Center from 4PM Monday to 4PM Tuesday for the Selkirk Mountains, West and East Cabinet Mountains, and the Silver Valley-Bitterroot Mountains above 4,000 feet. Heavy, wet snowfall and rain will create very dangerous avalanche conditions.