Snow May Produce Poor Travel Conditions in the North-Central U.S. and East Coast

A strong cold front sweeping across the Northern Plains may bring snow showers and snow squalls from eastern Montana to north-central Nebraska, with blizzard conditions possible in eastern North Dakota and northwestern Montana. Heavy snow is expected to persist downwind of the Great Lakes. Snow showers will spread up the East Coast across the Mid-Atlantic and Northeast coasts. Read More >

Coastal Waters Forecast for Ontonagon to Upper Entrance of Portage Canal MI (LSZ242) (Text-Only)
NWS Forecast for: Ontonagon to Upper Entrance of Portage Canal MI (LSZ242)
Issued by: National Weather Service Marquette, MI
Last Update: 502 PM EST Sun Jan 18 2026




Late This Afternoon: Southwest wind 15 to 20 knots. Snow showers. Waves 2 to 4 feet.

Tonight: Northwest wind up to 30 knots veering north by midnight. Snow showers. Heavy freezing spray and blowing snow by midnight. Waves building to 8 to 11 feet occasionally to 14 feet.

Monday: Northwest wind up to 30 knots becoming 20 to 25 knots late. Snow showers. Heavy freezing spray. Waves subsiding to 5 to 8 feet occasionally to 10 feet.

Monday Night: Northwest wind 20 to 25 knots. Cloudy. A chance of snow showers in the evening, then a slight chance of snow showers after midnight. Heavy freezing spray through the night. Waves subsiding to 3 to 6 feet occasionally to 8 feet.

Tuesday: West wind 20 to 25 knots diminishing to 15 to 20 knots in the afternoon. Heavy freezing spray in the morning. Cloudy with a chance of snow showers. Waves 3 to 6 feet occasionally to 8 feet.

note: wave height forecasts are for ice free areas.







Zone Forecast: Ontonagon to Upper Entrance of Portage Canal MI (LSZ242)

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