Heavy Great Lakes Snow through Friday; Extreme Cold and Potential for Major Winter Storm Late Week into this Weekend
Multiple clipper systems will bring cold temperatures and enhance lake-effect snow downwind of the Great Lakes. An arctic blast will bring frigid temperatures accompanied with gusty winds that may lead to dangerous wind chills beginning in the Northern Plains Thursday before expanding to the South and East. An expansive winter storm will start Friday in the Southern Rockies/Plains and Mid-South. Read More >
Hazardous Weather Conditions
Last Update: 501 AM EST Wed Jan 21 2026
For More Weather Information:
9NM SE Copper Harbor MI
Marine Zone Forecast
Early This Morning
Southwest wind 15 to 20 knots. Mostly cloudy with a slight chance of snow showers. Waves 3 to 5 feet occasionally to 7 feet subsiding to 2 to 4 feet.
Today
Southwest wind 15 to 20 knots. Cloudy. A slight chance of snow showers through mid morning, then a chance of snow showers by late morning. Snow showers likely late. Waves subsiding to 2 to 3 feet, then building to 2 to 4 feet.
Tonight
Northwest wind 15 to 25 knots with gusts up to 33 knots. Snow showers. Waves building to 3 to 6 feet occasionally to 8 feet.
Thursday
Northwest wind 20 to 25 knots with gale force gusts up to 34 knots. Snow showers. Waves building to 4 to 7 feet occasionally to 9 feet, then subsiding to 3 to 6 feet occasionally to 8 feet.
Thursday Night
Northwest wind up to 30 knots. Snow showers. Heavy freezing spray after midnight. Waves building to 7 to 10 feet occasionally to 13 feet, then subsiding to 6 to 9 feet occasionally to 11 feet.
note: wave height forecasts are for ice free areas.
note: wave height forecasts are for ice free areas.
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