Frigid Airmass to Bring Significantly Colder Temperatures; Snow Continues Downwind of the Great Lakes
A frigid cold airmass will bring significantly colder weather across the eastern two thirds of the country early this week. Record low temperatures are expected in the Southeast by Tuesday morning. Moderate to heavy lake effect snow will continue downwind of the Great Lakes through Monday. Several inches of snow accumulation is expected, including in portions of the Chicago Metro Read More >
| NWS Forecast for: Lake Superior from Saxon Harbor WI to Upper Entrance to Portage Canal MI 5NM off shore to the US/Canadian border including Isle Royale National Park (LSZ263) Issued by: National Weather Service Marquette, MI Last Update: 1001 PM EST Sun Nov 9 2025 | |
| Rest Of Tonight: North winds 15 to 25 knots. Isolated snow showers. Waves 3 to 6 feet occasionally to 8 feet. Monday: North winds 15 to 25 knots becoming northwest 5 to 15 knots by mid afternoon. Isolated snow showers in the morning. Waves subsiding to 1 to 3 feet. Monday Night: West winds 5 to 15 knots becoming southwest 10 to 20 knots by midnight, then increasing to 15 to 25 knots late. Waves subsiding to calm to 2 feet, then building to 3 to 5 feet occasionally to 7 feet. Tuesday: Southwest winds 20 to 30 knots veering west in the afternoon. A slight chance of rain and snow showers. Waves building to 4 to 8 feet occasionally to 10 feet. Tuesday Night: West winds 20 to 30 knots increasing to gales to 35 knots after midnight. A slight chance of rain showers. Waves subsiding to 3 to 6 feet occasionally to 8 feet, then building to 7 to 10 feet occasionally to 13 feet. Wednesday: Northwest gales to 35 knots. Waves building to 8 to 11 feet occasionally to 14 feet. Wednesday Night: West gales to 35 knots diminishing to 20 to 30 knots after midnight. Waves subsiding to 5 to 8 feet occasionally to 10 feet. Thursday: West winds 20 to 30 knots becoming northwest 10 to 20 knots. Waves subsiding to calm to 2 feet. Friday: East winds 15 to 25 knots becoming southeast 20 to 30 knots. Waves building to 5 to 8 feet occasionally to 10 feet. | |
| Zone Forecast: Lake Superior from Saxon Harbor WI to Upper Entrance to Portage Canal MI 5NM off shore to the US/Canadian border including Isle Royale National Park (LSZ263) | |
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