Coastal Waters Forecast for Green Bay North of line from Cedar River MI to Rock Island Passage (LMZ221) (Text-Only)
NWS Forecast for: Green Bay North of line from Cedar River MI to Rock Island Passage (LMZ221)
Issued by: National Weather Service Marquette, MI
Last Update: 1101 AM EDT Sat Sep 19 2026
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Rest Of Today: Southeast wind 10 to 15 knots backing east less than 10 knots late. Cloudy with a slight chance of showers. Waves 1 to 2 feet.

Tonight: Northeast wind 10 to 15 knots becoming 10 to 20 knots by midnight. Mostly cloudy with a slight chance of showers through midnight, then mostly clear late. Waves building to 2 to 3 feet.

Sunday: Northeast wind 15 to 20 knots. Mostly sunny. Waves building to 2 to 4 feet.

Sunday Night: Northeast wind 15 to 20 knots. Gusts up to 27 knots. Partly cloudy in the evening then becoming mostly cloudy. Waves subsiding to 2 to 3 feet.







Zone Forecast: Green Bay North of line from Cedar River MI to Rock Island Passage (LMZ221)

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