079 FZUS53 KDLH 172101 NSHDLH Nearshore Marine Forecast National Weather Service Duluth MN 401 PM CDT Fri Apr 17 2026 For waters within five nautical miles of shore on Lake Superior. Waves are the significant wave height - the average of the highest 1/3 of the wave spectrum. Occasional wave height is the average of the highest 1/10 of the wave spectrum. LSZ140-180400- Grand Portage to Grand Marais MN- 401 PM CDT Fri Apr 17 2026 ...GALE WARNING IN EFFECT UNTIL 3 AM CDT SATURDAY... .TONIGHT...Northwest wind 15 to 20 knots. Gusts up to 35 knots increasing to 40 knots after midnight, then decreasing to 30 knots late in the night. Patchy fog early in the evening. Rain likely and chance of thunderstorms early in the evening, then chance of rain late in the evening. Waves 2 to 4 feet subsiding to 1 to 3 feet late in the night. .SATURDAY...West wind 20 to 25 knots. Gusts up to 25 knots increasing to 30 knots in the late morning and afternoon. Partly sunny. Waves 3 to 5 feet. A small craft advisory may be needed. .SATURDAY NIGHT...Northwest wind 20 to 25 knots. Gusts up to 30 knots decreasing to 25 knots early in the morning. Mostly cloudy in the evening then becoming partly cloudy. Waves 3 to 5 feet subsiding to 1 to 3 feet early in the morning. A small craft advisory may be needed. .SUNDAY...Northwest wind 15 to 20 knots. Gusts up to 25 knots. Mostly sunny. Waves 1 to 2 feet. Note...Wave height forecasts are for ice free areas. $$ LSZ141-180400- Grand Marais to Taconite Harbor MN- 401 PM CDT Fri Apr 17 2026 ...GALE WARNING IN EFFECT UNTIL 3 AM CDT SATURDAY... .TONIGHT...Northwest wind 15 to 20 knots. Gales up to 40 knots decreasing to 35 knots late in the evening, then increasing to 40 knots after midnight decreasing to 30 knots late in the night. Rain likely and chance of thunderstorms early in the evening. Waves 2 to 4 feet subsiding to 1 to 3 feet late in the night. .SATURDAY...West wind 15 to 20 knots. Gusts up to 25 knots increasing to 30 knots in the late morning and afternoon. Mostly sunny. Waves 2 to 4 feet. .SATURDAY NIGHT...Northwest wind 15 to 20 knots. Gusts up to 30 knots decreasing to 25 knots after midnight. Partly cloudy. Waves 1 to 3 feet. .SUNDAY...Northwest wind 5 to 10 knots. Gusts up to 20 knots in the morning. Mostly sunny. Waves 1 foot or less. Note...Wave height forecasts are for ice free areas. $$ LSZ142-180400- Taconite Harbor to Silver Bay Harbor MN- 401 PM CDT Fri Apr 17 2026 ...GALE WARNING IN EFFECT UNTIL 3 AM CDT SATURDAY... .TONIGHT...Northwest wind 15 to 20 knots. Gales up to 40 knots decreasing to 35 knots late in the evening, then increasing to 40 knots after midnight decreasing to 30 knots late in the night. Chance of rain and thunderstorms early in the evening. Waves 1 to 3 feet. .SATURDAY...West wind 15 to 20 knots with gusts to around 25 knots. Mostly sunny. Waves 1 to 3 feet. .SATURDAY NIGHT...Northwest wind 15 to 20 knots with gusts to around 25 knots easing to 5 to 10 knots with gusts to around 20 knots after midnight. Partly cloudy. Waves 1 to 2 feet. .SUNDAY...Northwest wind 5 to 10 knots. Sunny. Waves 1 foot or less. Note...Wave height forecasts are for ice free areas. $$ LSZ143-180400- Silver Bay Harbor to Two Harbors MN- 401 PM CDT Fri Apr 17 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH SATURDAY EVENING... .TONIGHT...West wind 15 to 20 knots. Gusts up to 30 knots increasing to 35 knots late in the evening, then decreasing to 30 knots after midnight decreasing to 25 knots late in the night. Chance of rain and thunderstorms early in the evening. Waves 1 to 2 feet. .SATURDAY...West wind 15 to 20 knots with gusts to around 25 knots. Mostly sunny. Waves 1 to 2 feet building to 1 to 3 feet in the afternoon. .SATURDAY NIGHT...Northwest wind 15 to 20 knots with gusts to around 25 knots easing to 5 to 10 knots with gusts to around 20 knots after midnight. Partly cloudy. Waves 1 to 2 feet. .SUNDAY...Northwest wind 5 to 10 knots. Sunny. Waves 1 foot or less. Note...Wave height forecasts are for ice free areas. $$ LSZ144-180400- Two Harbors to Duluth MN- 401 PM CDT Fri Apr 17 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH SATURDAY EVENING... .TONIGHT...West wind 15 to 20 knots with gusts to around 30 knots. Slight chance of rain and thunderstorms early in the evening. Waves 1 to 3 feet. .SATURDAY...West wind 15 to 20 knots with gusts to around 25 knots. Partly sunny. Waves 1 to 3 feet. .SATURDAY NIGHT...Northwest wind 20 to 25 knots easing to 10 to 15 knots with gusts to around 20 knots after midnight. Partly cloudy. Waves 2 to 4 feet subsiding to 1 to 3 feet in the late evening and overnight. .SUNDAY...Northwest wind 5 to 10 knots. Sunny. Waves 1 foot or less. Note...Wave height forecasts are for ice free areas. $$ LSZ145-180400- Duluth MN to Port Wing WI- 401 PM CDT Fri Apr 17 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH SATURDAY EVENING... .TONIGHT...West wind 15 to 20 knots with gusts to around 30 knots. Slight chance of rain and thunderstorms early in the evening. Waves 1 to 3 feet building to 2 to 4 feet in the late evening and overnight. .SATURDAY...West wind 15 to 20 knots. Gusts up to 30 knots decreasing to 25 knots in the late morning and afternoon. Partly sunny. Waves 3 to 5 feet. .SATURDAY NIGHT...West wind 20 to 25 knots becoming northwest 10 to 15 knots with gusts to around 20 knots after midnight. Partly cloudy. Waves 3 to 5 feet subsiding to 1 to 3 feet after midnight. .SUNDAY...Northwest wind 5 to 10 knots. Sunny. Waves 1 to 2 feet. Note...Wave height forecasts are for ice free areas. $$ LSZ146-180400- Port Wing to Sand Island WI- 401 PM CDT Fri Apr 17 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH SATURDAY EVENING... .TONIGHT...West wind 5 to 15 knots with gusts to around 25 knots rising to 15 to 20 knots with gusts to around 30 knots in the late evening and overnight. Chance of rain and thunderstorms early in the evening. Waves 3 to 5 feet. .SATURDAY...West wind 20 to 25 knots easing to 10 to 20 knots late in the morning, then rising to 20 to 25 knots in the afternoon. Gusts up to 30 knots. Partly sunny. Waves 4 to 6 feet. Waves occasionally to 7 feet. .SATURDAY NIGHT...Northwest wind 15 to 20 knots. Gusts up to 25 knots decreasing to 20 knots after midnight. Mostly cloudy in the evening then becoming partly cloudy. Waves 3 to 5 feet subsiding to 1 to 3 feet after midnight. Waves occasionally to 7 feet. .SUNDAY...Northwest wind 5 to 10 knots. Sunny. Waves 1 to 2 feet. Note...Wave height forecasts are for ice free areas. $$ LSZ147-180400- Sand Island to Bayfield WI- 401 PM CDT Fri Apr 17 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH SATURDAY EVENING... .TONIGHT...West wind 15 to 20 knots. Gusts up to 25 knots increasing to 30 knots after midnight. Chance of rain and thunderstorms early in the evening. Waves 3 to 5 feet. .SATURDAY...West wind 20 to 25 knots with gusts to around 30 knots. Partly sunny. Waves 4 to 6 feet. Waves occasionally to 7 feet. .SATURDAY NIGHT...Northwest wind 15 to 20 knots. Gusts up to 25 knots decreasing to 20 knots after midnight. Partly cloudy. Waves 3 to 5 feet subsiding to 1 to 3 feet after midnight. Waves occasionally to 7 feet. .SUNDAY...Northwest wind 5 to 10 knots. Sunny. Waves 1 to 2 feet. Note...Wave height forecasts are for ice free areas. $$ LSZ150-180400- Outer Apostle Islands Beyond 5 NM from Mainland- 401 PM CDT Fri Apr 17 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE SATURDAY NIGHT... .TONIGHT...West wind 20 to 25 knots. Gusts up to 25 knots increasing to 30 knots in the late evening and overnight. Patchy fog early in the evening. Rain likely and chance of thunderstorms early in the evening, then slight chance of rain late in the evening. Waves 4 to 6 feet. Waves occasionally to 7 feet. .SATURDAY...West wind 20 to 25 knots with gusts to around 30 knots. Partly sunny. Waves 4 to 7 feet. Waves occasionally to 9 feet. .SATURDAY NIGHT...Northwest wind 15 to 20 knots. Gusts up to 30 knots decreasing to 20 knots. Mostly cloudy in the evening then becoming partly cloudy. Waves 4 to 6 feet subsiding to 1 to 3 feet early in the morning. Waves occasionally to 8 feet. .SUNDAY...Northwest wind 10 to 15 knots. Gusts up to 20 knots early in the morning. Mostly sunny. Waves 1 to 3 feet. Note...Wave height forecasts are for ice free areas. $$ LSZ121-180400- Chequamegon Bay-Bayfield to Oak Point WI- 401 PM CDT Fri Apr 17 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH SATURDAY EVENING... .TONIGHT...West wind 10 to 15 knots with gusts to around 25 knots. Chance of rain and thunderstorms early in the evening. Waves 1 to 2 feet. .SATURDAY...West wind 15 to 20 knots with gusts to around 25 knots. Mostly sunny. Waves 1 to 2 feet. .SATURDAY NIGHT...Northwest wind 10 to 15 knots. Gusts up to 25 knots. Partly cloudy. Waves 1 to 2 feet. .SUNDAY...Northwest wind 5 to 10 knots. Sunny. Waves 1 foot or less. Note...Wave height forecasts are for ice free areas. $$ LSZ148-180400- Oak Point to Saxon Harbor WI- 401 PM CDT Fri Apr 17 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH SATURDAY EVENING... .TONIGHT...West wind 15 to 20 knots with gusts to around 25 knots. Patchy fog early in the evening. Chance of rain and thunderstorms early in the evening, then slight chance of rain late in the evening. Waves 1 to 3 feet building to 2 to 4 feet after midnight. .SATURDAY...West wind 15 to 20 knots. Gusts up to 25 knots increasing to 30 knots late in the afternoon. Mostly sunny. Waves 2 to 4 feet. .SATURDAY NIGHT...Northwest wind 15 to 20 knots. Gusts up to 25 knots decreasing to 20 knots after midnight. Mostly cloudy in the evening then becoming partly cloudy. Waves 2 to 4 feet subsiding to 1 to 2 feet after midnight. .SUNDAY...Northwest wind 10 to 15 knots easing to 5 knots late in the afternoon. Sunny. Waves 1 to 2 feet. Note...Wave height forecasts are for ice free areas. $$ Graphical marine forecasts are available online at: weather.gov/greatlakes WFO DLH  297 FZUS53 KMQT 172102 NSHMQT Nearshore Marine Forecast National Weather Service Marquette MI 502 PM EDT Fri Apr 17 2026 For waters within five nautical miles of shore Waves are the significant wave height - the average of the highest 1/3 of the wave spectrum. Occasional wave height is the average of the highest 1/10 of the wave spectrum. LMZ221-180800- Green Bay North of line from Cedar River MI to Rock Island Passage- 502 PM EDT Fri Apr 17 2026 ...DENSE FOG ADVISORY IN EFFECT UNTIL 5 AM EDT SATURDAY... ...SMALL CRAFT ADVISORY IN EFFECT FROM 10 PM EDT THIS EVENING THROUGH SATURDAY MORNING... .LATE THIS AFTERNOON...Southeast wind 10 to 15 knots with gusts up to 22 knots. Mostly cloudy with a slight chance of showers and thunderstorms. Areas of dense fog. Waves 1 to 2 feet building to 2 to 3 feet. .TONIGHT...South wind 15 to 20 knots veering northwest late. Patchy dense fog through the night. Rain showers likely in the evening. A chance of thunderstorms through the night. A chance of rain showers after midnight. Waves building to 3 to 5 feet occasionally to 7 feet, then subsiding to 2 to 4 feet. .SATURDAY...Northwest wind 10 to 20 knots backing west 10 to 15 knots by late morning. Partly cloudy. A slight chance of rain showers possibly mixed with snow showers through early afternoon, then a slight chance of snow showers late. Waves subsiding to 1 to 2 feet. .SATURDAY NIGHT...West wind 10 to 15 knots. Partly cloudy. A slight chance of snow showers in the evening. Waves 1 to 2 feet. .SUNDAY...Northwest wind 10 to 15 knots veering north in the afternoon. Partly cloudy. Waves 1 to 2 feet. $$ LMZ248-250-180800- Seul Choix Point to Point Detour MI- 5NM East of a line from Fairport MI to Rock Island Passage- 502 PM EDT Fri Apr 17 2026 ...DENSE FOG ADVISORY IN EFFECT UNTIL 5 AM EDT SATURDAY... ...SMALL CRAFT ADVISORY IN EFFECT THROUGH SATURDAY MORNING... .LATE THIS AFTERNOON...Southeast wind 10 to 15 knots. Mostly cloudy. Patchy dense fog. Waves 1 to 2 feet building to 2 to 3 feet. .TONIGHT...South wind 15 to 25 knots veering northwest 15 to 20 knots late. Cloudy. A chance of showers and thunderstorms through midnight, then a chance of rain showers and a slight chance of thunderstorms late. Patchy dense fog through the night. Waves building to 4 to 7 feet occasionally to 9 feet, then subsiding to 3 to 5 feet occasionally to 7 feet. .SATURDAY...Northwest wind 15 to 20 knots backing west 10 to 15 knots by late morning. Mostly cloudy. A chance of rain showers through mid morning. A slight chance of snow showers through the day. A slight chance of rain showers by late morning. Waves subsiding to 1 to 2 feet. .SATURDAY NIGHT...Northwest wind 10 to 15 knots with gusts up to 22 knots. Partly cloudy. A slight chance of snow showers in the evening. Waves 1 to 2 feet. .SUNDAY...Northwest wind 10 to 15 knots becoming 10 to 20 knots in the afternoon. Partly cloudy. Waves 1 to 2 feet. $$ LSZ240-180800- Saxon Harbor WI to Black River MI- 502 PM EDT Fri Apr 17 2026 /402 PM CDT Fri Apr 17 2026/ ...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE SATURDAY NIGHT... .LATE THIS AFTERNOON...Southwest wind 15 to 20 knots. Showers likely and a chance of thunderstorms. Waves 1 to 2 feet. .TONIGHT...West wind 15 to 25 knots. Cloudy. Rain showers likely through late evening. Waves building to 3 to 5 feet occasionally to 7 feet. .SATURDAY...West wind 20 to 25 knots. Partly cloudy with a slight chance of snow showers. Waves building to 3 to 6 feet occasionally to 8 feet, then subsiding to 3 to 5 feet occasionally to 7 feet. .SATURDAY NIGHT...West wind 15 to 25 knots veering northwest 10 to 15 knots after midnight. Mostly cloudy with a slight chance of snow showers in the evening, then partly cloudy after midnight. Waves subsiding to 2 to 3 feet. .SUNDAY...Northwest wind 5 to 15 knots. Partly cloudy in the morning then clearing. Waves subsiding to 1 to 2 feet. $$ LSZ241-180800- Black River to Ontonagon MI- 502 PM EDT Fri Apr 17 2026 /402 PM CDT Fri Apr 17 2026/ ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 AM EDT /3 AM CDT/ SATURDAY... ...GALE WARNING IN EFFECT FROM 4 AM EDT /3 AM CDT/ SATURDAY THROUGH SATURDAY EVENING... .LATE THIS AFTERNOON...South wind 15 to 20 knots. Showers and a chance of thunderstorms. Waves 1 to 2 feet building to 2 to 3 feet. .TONIGHT...West wind 15 to 25 knots becoming 20 to 25 knots by midnight. Cloudy. A chance of rain showers and a slight chance of thunderstorms through late evening, then a slight chance of rain showers by midnight. Waves building to 4 to 7 feet occasionally to 9 feet. .SATURDAY...West wind up to 30 knots. Partly cloudy with a slight chance of snow showers. Waves building to 6 to 9 feet occasionally to 11 feet, then subsiding to 5 to 8 feet occasionally to 10 feet. .SATURDAY NIGHT...Northwest wind 15 to 25 knots. Mostly cloudy with a slight chance of snow showers. Waves subsiding to 3 to 5 feet occasionally to 7 feet. .SUNDAY...Northwest wind 15 to 20 knots backing west 5 to 15 knots in the afternoon. Partly cloudy in the morning then clearing. Waves subsiding to 1 to 2 feet. $$ LSZ242-243-180800- Ontonagon to Upper Entrance of Portage Canal MI- Upper Entrance of Portage Canal to Eagle River MI- 502 PM EDT Fri Apr 17 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 AM EDT SATURDAY... ...GALE WARNING IN EFFECT FROM 4 AM EDT SATURDAY THROUGH SATURDAY EVENING... .LATE THIS AFTERNOON...South wind 15 to 20 knots. Showers likely and a chance of thunderstorms. Waves 2 to 3 feet. .TONIGHT...Southwest wind 15 to 25 knots veering west by midnight. Cloudy. Rain showers likely and a chance of thunderstorms through late evening, then a chance of rain showers by midnight. Waves building to 5 to 8 feet occasionally to 10 feet. .SATURDAY...West wind up to 30 knots. Mostly cloudy with a slight chance of snow showers. Waves building to 8 to 11 feet occasionally to 14 feet, then subsiding to 7 to 10 feet occasionally to 13 feet. .SATURDAY NIGHT...Northwest wind up to 30 knots with gale force gusts up to 37 knots. Mostly cloudy. A slight chance of snow showers in the evening. Waves building to 8 to 11 feet occasionally to 14 feet, then subsiding to 4 to 7 feet occasionally to 9 feet. .SUNDAY...Northwest wind 15 to 25 knots. Partly cloudy. Waves subsiding to 2 to 3 feet. $$ LSZ244-245-180800- Eagle River to Manitou Island MI- Manitou Island to Point Isabelle MI- 502 PM EDT Fri Apr 17 2026 ...GALE WARNING IN EFFECT UNTIL 11 PM EDT THIS EVENING... ...SMALL CRAFT ADVISORY IN EFFECT FROM 11 PM THIS EVENING TO 4 AM EDT SATURDAY... ...GALE WARNING IN EFFECT FROM 4 AM EDT SATURDAY THROUGH SATURDAY EVENING... .LATE THIS AFTERNOON...South wind 20 to 25 knots with gale force gusts up to 36 knots. Mostly cloudy with a chance of rain showers and a slight chance of thunderstorms. Waves 5 to 8 feet occasionally to 10 feet. .TONIGHT...South wind 15 to 20 knots veering west 15 to 25 knots by midnight. Gale force gusts up to 36 knots. Cloudy. A chance of showers and thunderstorms through late evening, then a chance of rain showers by midnight. Waves subsiding to 3 to 5 feet occasionally to 7 feet, then building to 4 to 7 feet occasionally to 9 feet. .SATURDAY...West wind up to 30 knots with gale force gusts up to 38 knots. Mostly cloudy with a slight chance of snow showers. Waves building to 8 to 11 feet occasionally to 14 feet. .SATURDAY NIGHT...Northwest wind up to 30 knots. Mostly cloudy. A slight chance of snow showers in the evening. Waves subsiding to 5 to 8 feet occasionally to 10 feet. .SUNDAY...Northwest wind 15 to 25 knots. Mostly cloudy in the morning then becoming mostly sunny. Waves subsiding to 2 to 3 feet. $$ LSZ246-180800- Point Isabelle to Lower Entrance of Portage Canal MI- 502 PM EDT Fri Apr 17 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 AM EDT SATURDAY... ...GALE WARNING IN EFFECT FROM 4 AM EDT SATURDAY THROUGH SATURDAY EVENING... .LATE THIS AFTERNOON...South wind 10 to 20 knots with gusts up to 29 knots. Rain showers likely and a slight chance of thunderstorms. Waves 3 to 6 feet occasionally to 8 feet. .TONIGHT...South wind 10 to 20 knots veering west 15 to 20 knots by midnight. Gusts up to 29 knots. Cloudy. A chance of showers and thunderstorms through late evening, then a chance of rain showers by midnight. Waves subsiding to 1 to 2 feet, then building to 2 to 3 feet. .SATURDAY...West wind 15 to 25 knots with gale force gusts up to 35 knots. Mostly cloudy with a slight chance of snow showers. Waves building to 2 to 4 feet. .SATURDAY NIGHT...Northwest wind up to 30 knots. Partly cloudy with a slight chance of snow showers in the evening, then mostly cloudy after midnight. Waves building to 3 to 5 feet occasionally to 7 feet, then subsiding to 2 to 3 feet. .SUNDAY...Northwest wind 10 to 20 knots. Mostly cloudy in the morning then becoming mostly sunny. Waves subsiding to 1 to 2 feet. $$ LSZ247-180800- Lower Entrance of Portage Canal To Huron Islands MI Including Keweenaw and Huron Bays- 502 PM EDT Fri Apr 17 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 AM EDT SATURDAY... ...GALE WARNING IN EFFECT FROM 4 AM EDT SATURDAY THROUGH SATURDAY EVENING... .LATE THIS AFTERNOON...South wind 10 to 15 knots with gusts up to 29 knots. Showers likely and a slight chance of thunderstorms. Waves 2 to 4 feet. .TONIGHT...Southwest wind 10 to 20 knots veering west 15 to 20 knots by midnight. Gusts up to 29 knots. Cloudy. Rain showers likely and a chance of thunderstorms through late evening, then a chance of rain showers by midnight. Waves subsiding to 1 to 2 feet, then building to 2 to 4 feet. .SATURDAY...West wind up to 30 knots. Partly cloudy with a slight chance of snow showers. Waves building to 3 to 6 feet occasionally to 8 feet. .SATURDAY NIGHT...Northwest wind up to 30 knots. Partly cloudy with a chance of snow showers in the evening, then mostly cloudy with a slight chance of snow showers after midnight. Waves building to 4 to 7 feet occasionally to 9 feet, then subsiding to 2 to 4 feet. .SUNDAY...Northwest wind 10 to 20 knots. Mostly cloudy in the morning then becoming mostly sunny. Waves subsiding to 1 to 2 feet. $$ LSZ248-180800- Huron Islands to Marquette MI- 502 PM EDT Fri Apr 17 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 AM EDT SATURDAY... ...GALE WARNING IN EFFECT FROM 4 AM EDT SATURDAY THROUGH SATURDAY EVENING... .LATE THIS AFTERNOON...South wind 15 to 25 knots with gale force gusts up to 34 knots. Mostly cloudy with a chance of showers and a slight chance of thunderstorms. Waves 3 to 5 feet occasionally to 7 feet. .TONIGHT...South wind 15 to 20 knots veering west 15 to 25 knots by midnight. Gale force gusts up to 35 knots. Cloudy. Rain showers and a chance of thunderstorms through late evening, then a slight chance of thunderstorms by midnight. A chance of rain showers by midnight. Waves subsiding to 2 to 3 feet, then building to 3 to 6 feet occasionally to 8 feet. .SATURDAY...West wind up to 30 knots. Partly cloudy with a slight chance of snow showers. Waves building to 4 to 7 feet occasionally to 9 feet, then subsiding to 3 to 6 feet occasionally to 8 feet. .SATURDAY NIGHT...Northwest wind up to 30 knots. Partly cloudy with a chance of snow showers in the evening, then mostly cloudy after midnight. Waves building to 5 to 8 feet occasionally to 10 feet, then subsiding to 3 to 6 feet occasionally to 8 feet. .SUNDAY...Northwest wind 15 to 25 knots. Mostly cloudy in the morning then becoming mostly sunny. Waves subsiding to 3 to 5 feet occasionally to 7 feet. $$ LSZ249-180800- Marquette to Munising MI- 502 PM EDT Fri Apr 17 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 AM EDT SATURDAY... ...GALE WARNING IN EFFECT FROM 4 AM EDT SATURDAY THROUGH SATURDAY EVENING... .LATE THIS AFTERNOON...South wind 15 to 20 knots with gusts up to 32 knots. Mostly cloudy with a chance of showers. Waves 2 to 3 feet. .TONIGHT...South wind 15 to 25 knots veering northwest 20 to 25 knots late. Gusts up to 33 knots. Rain showers and a chance of thunderstorms. Waves building to 2 to 4 feet, then subsiding to 1 to 2 feet. .SATURDAY...Northwest wind 20 to 25 knots. Partly cloudy. A chance of rain showers possibly mixed with snow showers through mid morning, then a slight chance of snow showers by late morning. Waves building to 6 to 9 feet occasionally to 11 feet. .SATURDAY NIGHT...Northwest wind 20 to 25 knots. Partly cloudy with a chance of snow showers in the evening, then mostly cloudy with a slight chance of snow showers after midnight. Waves building to 7 to 10 feet occasionally to 13 feet. .SUNDAY...Northwest wind 20 to 25 knots. Partly cloudy. Waves subsiding to 4 to 7 feet occasionally to 9 feet. $$ LSZ250-180800- Munising to Grand Marais MI- 502 PM EDT Fri Apr 17 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 AM EDT SATURDAY... ...GALE WARNING IN EFFECT FROM 4 AM EDT SATURDAY THROUGH SATURDAY EVENING... .LATE THIS AFTERNOON...South wind 15 to 20 knots with gusts up to 29 knots. Partly cloudy. Waves 2 to 3 feet. .TONIGHT...South wind 15 to 20 knots veering northwest 15 to 25 knots late. Rain showers and a chance of thunderstorms through midnight, then rain showers possibly mixed with snow showers and sleet likely late. Waves subsiding to 1 to 2 feet, then building to 5 to 8 feet occasionally to 10 feet. .SATURDAY...Northwest wind up to 30 knots. Mostly cloudy through early afternoon then becoming mostly sunny. A chance of rain showers possibly mixed with sleet and snow showers through mid morning, then a slight chance of snow showers by late morning. Waves building to 8 to 11 feet occasionally to 14 feet. .SATURDAY NIGHT...Northwest wind up to 30 knots. Partly cloudy in the evening then becoming mostly cloudy. A slight chance of snow showers. Waves building to 9 to 12 feet occasionally to 15 feet, then subsiding to 8 to 11 feet occasionally to 14 feet. .SUNDAY...Northwest wind 20 to 25 knots with gusts up to 33 knots. Mostly cloudy. Waves subsiding to 6 to 9 feet occasionally to 11 feet. $$ LSZ251-180800- Grand Marais to Whitefish Point MI- 502 PM EDT Fri Apr 17 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 AM EDT SATURDAY... ...GALE WARNING IN EFFECT FROM 4 AM EDT SATURDAY THROUGH SATURDAY EVENING... .LATE THIS AFTERNOON...Southeast wind 15 to 20 knots with gusts up to 27 knots. Partly cloudy. Waves 2 to 3 feet building to 2 to 4 feet. .TONIGHT...Southeast wind 15 to 20 knots veering south by midnight, then veering west 15 to 25 knots late. Rain showers and a chance of thunderstorms through the night. A slight chance of sleet after midnight. Waves building to 3 to 5 feet occasionally to 7 feet, then subsiding to 2 to 4 feet. .SATURDAY...Northwest wind 20 to 25 knots with gale force gusts up to 34 knots. Mostly cloudy. A chance of rain showers possibly mixed with sleet and snow showers through mid morning, then a slight chance of snow showers by late morning. Waves building to 9 to 12 feet occasionally to 15 feet. .SATURDAY NIGHT...Northwest wind up to 30 knots. Partly cloudy with a chance of snow showers in the evening, then mostly cloudy with a slight chance of snow showers after midnight. Waves 9 to 12 feet occasionally to 15 feet. .SUNDAY...Northwest wind up to 30 knots. Mostly cloudy. A slight chance of snow showers in the morning. Waves subsiding to 7 to 10 feet occasionally to 13 feet. $$ WFO MQT  462 FZUS53 KGRB 172146 NSHGRB Nearshore Marine Forecast National Weather Service Green Bay WI 446 PM CDT Fri Apr 17 2026 For waters within five nautical miles of shore on Lake Michigan LMZ522-180400- Green Bay south of line from Oconto WI to Little Sturgeon Bay WI- 446 PM CDT Fri Apr 17 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 AM CDT SATURDAY... .LATE THIS AFTERNOON...S wind 15 to 25 kts. Waves 2 to 4 ft. A chance of showers and thunderstorms. .TONIGHT...S wind 15 to 25 kts veering SW 10 to 15 kts, then veering NW 10 to 20 kts after midnight. Waves 2 to 4 ft subsiding to 1 to 3 ft after midnight. Patchy fog. a chance of thunderstorms in the evening. Rain showers. .SATURDAY...W wind 15 to 25 kts. Waves 1 to 3 ft. Partly cloudy. A Small Craft Advisory may be needed. .SATURDAY NIGHT...W wind 10 to 15 kts. Waves 1 to 3 ft. Mostly clear. .SUNDAY...NW wind 10 to 15 kts veering N early in the afternoon. Waves 2 ft or less. Partly cloudy. $$ LMZ521-180400- 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- 446 PM CDT Fri Apr 17 2026 ...DENSE FOG ADVISORY IN EFFECT UNTIL 4 AM CDT SATURDAY... ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 AM CDT SATURDAY... .LATE THIS AFTERNOON...S wind 15 to 25 kts. Waves 2 to 4 ft. Patchy dense fog. a chance of showers and thunderstorms. .TONIGHT...S wind 15 to 25 kts veering NW 10 to 20 kts after midnight. Waves 2 to 4 ft subsiding to 1 to 3 ft after midnight. Patchy dense fog. a chance of showers and thunderstorms in the evening. Rain showers likely after midnight. .SATURDAY...W wind 10 to 15 kts. Waves 1 to 3 ft. Partly cloudy. .SATURDAY NIGHT...W wind 10 to 15 kts. Waves 1 to 3 ft. Partly cloudy. .SUNDAY...NW wind 10 to 15 kts veering N early in the afternoon. Waves 2 ft or less. Partly cloudy. $$ LMZ541-180400- Rock Island Passage to Sturgeon Bay WI- 446 PM CDT Fri Apr 17 2026 ...DENSE FOG ADVISORY IN EFFECT UNTIL 4 AM CDT SATURDAY... ...SMALL CRAFT ADVISORY IN EFFECT THROUGH SATURDAY MORNING... .LATE THIS AFTERNOON...S wind 15 to 25 kts. Waves 4 to 7 ft. Patchy dense fog. a slight chance of showers and thunderstorms. .TONIGHT...S wind 15 to 25 kts veering NW after midnight. Waves 5 to 8 ft. Patchy dense fog. a chance of thunderstorms in the evening. Rain showers likely. .SATURDAY...NW wind 15 to 25 kts backing W 10 to 15 kts in the late morning and afternoon. Waves 3 to 5 ft subsiding to 1 to 3 ft in the afternoon. Partly cloudy. .SATURDAY NIGHT...W wind 10 to 15 kts. Waves 1 to 3 ft. Partly cloudy. .SUNDAY...NW wind 10 to 15 kts veering N early in the afternoon. Waves 2 ft or less. Partly cloudy. $$ LMZ542-543-180400- Sturgeon Bay to Two Rivers WI-Two Rivers to Sheboygan WI- 446 PM CDT Fri Apr 17 2026 ...DENSE FOG ADVISORY IN EFFECT UNTIL 4 AM CDT SATURDAY... ...SMALL CRAFT ADVISORY IN EFFECT THROUGH SATURDAY MORNING... .LATE THIS AFTERNOON...S wind 15 to 25 kts. Waves 4 to 7 ft. Patchy dense fog. a chance of showers and a slight chance of thunderstorms. .TONIGHT...S wind 15 to 25 kts veering W after midnight. Gusts to 35 kts. Waves 5 to 8 ft subsiding to 4 to 7 ft after midnight. Patchy dense fog. a chance of thunderstorms in the evening. A chance of showers. .SATURDAY...W wind 15 to 25 kts. Waves 3 to 5 ft subsiding to 1 to 3 ft in the afternoon. Partly cloudy in the morning then clearing. .SATURDAY NIGHT...W wind 15 to 25 kts decreasing to 10 to 15 kts in the late evening and overnight. Waves 1 to 3 ft. Mostly clear. A Small Craft Advisory may be needed. .SUNDAY...NW wind 10 to 15 kts veering N early in the afternoon. Waves 2 ft or less. Partly cloudy. $$ See Lake Michigan Open Lake Forecast for Monday through Wednesday. Wave height forecast is for ice free areas.