Nearshore Marine Forecast
Issued by NWS Green Bay, WI
Issued by NWS Green Bay, WI
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921 FZUS53 KGRB 220130 NSHGRB Nearshore Marine Forecast National Weather Service Green Bay WI 829 PM CDT Fri Mar 21 2025 For waters within five nautical miles of the shore on Lake Michigan LMZ521-522-220800- Green Bay south of line from Cedar River to Rock Island Passage and north of a line from Oconto WI to Little Sturgeon Bay WI- Green Bay south of line from Oconto WI to Little Sturgeon Bay WI- 829 PM CDT Fri Mar 21 2025 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH SATURDAY MORNING... .TONIGHT...N wind 15 to 25 kts with gusts to around 30 kts. Light rain likely and a chance of light snow in the evening, then a chance of flurries after midnight. Waves 2 ft or less. .SATURDAY...N wind 10 to 20 kts with gusts to around 25 kts backing SW 5 to 10 kts in the afternoon. Mostly sunny. Waves 2 ft or less. .SATURDAY NIGHT...S wind 5 to 10 kts backing SE 10 to 20 kts after midnight. Mostly clear in the evening then becoming mostly cloudy. Waves 2 ft or less. .SUNDAY...SE wind 15 to 25 kts with gusts to around 30 kts. Light snow. Rain in the afternoon. Waves 2 ft or less. A Small Craft Advisory may be needed. Wave height forecast is for ice free areas. $$ LMZ541-220800- Rock Island Passage to Sturgeon Bay WI- 829 PM CDT Fri Mar 21 2025 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH SATURDAY MORNING... .TONIGHT...NW wind 15 to 25 kts with gusts to around 30 kts. Light rain likely and a chance of light snow in the evening, then a chance of flurries after midnight. Waves 4 to 7 ft. .SATURDAY...NW wind 10 to 20 kts with gusts to around 25 kts backing W 10 to 15 kts in the afternoon. Partly cloudy in the morning then clearing. Waves 2 to 4 ft subsiding to 1 to 3 ft in the late morning and afternoon. .SATURDAY NIGHT...S wind 10 to 20 kts. Mostly clear in the evening then becoming mostly cloudy. Waves 1 to 3 ft building to 3 to 5 ft early in the morning. A Small Craft Advisory may be needed. .SUNDAY...SE wind 15 to 25 kts with gusts to around 30 kts. A chance of light snow in the morning, then rain and light snow in the afternoon. Waves 4 to 7 ft building to 5 to 8 ft in the late morning and afternoon. $$ LMZ542-543-220800- Sturgeon Bay to Two Rivers WI-Two Rivers to Sheboygan WI- 829 PM CDT Fri Mar 21 2025 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH SATURDAY MORNING... .TONIGHT...NW wind 10 to 20 kts veering N 15 to 25 kts after midnight. Gusts to around 30 kts. Light rain likely and a slight chance of light snow in the evening, then a chance of flurries after midnight. Waves 3 to 5 ft. .SATURDAY...N wind 10 to 20 kts with gusts to around 25 kts backing W 5 to 10 kts in the afternoon. Partly cloudy in the morning then clearing. Waves 3 to 5 ft subsiding to 2 ft or less. .SATURDAY NIGHT...SE wind 10 to 20 kts. Gusts to around 25 kts after midnight. Mostly clear in the evening then becoming mostly cloudy. Waves 2 ft or less building to 4 to 7 ft. .SUNDAY...SE wind to around 30 kts with gusts to around 35 kts. Rain with light snow likely. Waves 6 to 10 ft. A Gale Warning may be needed. $$ See Lake Michigan Open Lake Forecast for Monday through Wednesday.