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 >

Hazardous Weather Conditions

Last Update: 457 AM CST Mon Dec 8 2025

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Duluth, MN Local Forecast Office

10NM SW Grand Portage MN

Marine Zone Forecast

Today

West wind 10 to 15 knots becoming southwest 15 to 20 knots with gusts to around 25 knots in the afternoon. Chance of flurries early in the morning, then chance of snow in the late morning and afternoon. Waves 1 to 2 feet building to 3 to 5 feet in the afternoon.

Tonight

Southwest wind 15 to 20 knots with gusts to around 25 knots becoming northwest 10 to 15 knots with gusts to around 20 knots early in the morning. Snow in the evening, then chance of snow after midnight. Waves 4 to 6 feet. Waves occasionally to 7 feet.

Tuesday

Northwest wind 10 to 15 knots with gusts to around 20 knots easing to 5 knots early in the afternoon, then becoming northeast late in the afternoon. Chance of snow in the afternoon. Waves 1 to 3 feet subsiding to 1 to 2 feet in the late morning and afternoon.

Tuesday Night

Northeast wind 20 to 25 knots with gales to around 35 knots. Chance of snow. Waves 1 to 2 feet building to 4 to 6 feet in the late evening and overnight. Waves occasionally to 7 feet. A gale warning may be needed.