Prolonged Atmospheric River Will Impact the Northwest Early this Week

A weather system in the Pacific Northwest will produce rain throughout the day, before a potent atmospheric river produces a prolonged round of heavy rainfall, widespread urban and river flooding, and high elevation snow to the region Monday through Wednesday. Showers and thunderstorms may produce isolated damaging winds, a brief tornado, and locally heavy rainfall across parts of Florida today. Read More >

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Last Map Update: Sun, Dec 7, 2025 at 10:06:35 pm PST

Watches, Warnings & Advisories

National Weather Service Seattle/Tacoma, WA

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Wind Advisory

Flood Watch

Hydrologic Outlook

Strong Winds Mon-Tue

Mud and Rockslides Possible

Active Weather Ahead

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.

Following a very active weekend, we are monitoring the potential for a stronger atmospheric river to bring heavy mountain rain, warmer temperatures, and breezy winds across the Inland Northwest. Our primary concern is the combination of heavy rain and warmer temperatures in the mountains. This may lead to snowmelt on mid-to-lower slopes, which would increase the risk of rock and mudslides in steep terrain, particularly in the North Cascades and North Idaho. You may also see water levels rise on small creeks and streams.

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Prolonged Atmospheric River Will Impact the Northwest Early this Week

NWS Forecast Office Spokane, WA