719 FZUS53 KDLH 172201 NSHDLH Nearshore Marine Forecast National Weather Service Duluth MN 501 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- 501 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. $$ LSZ141-180400- Grand Marais to Taconite Harbor MN- 501 PM CDT Fri Apr 17 2026 ...GALE WARNING IN EFFECT UNTIL 3 AM CDT SATURDAY... .TONIGHT...Northwest wind 15 to 20 knots. Gales up to 40 knots decreasing to 35 knots late in the evening, then increasing to 40 knots after midnight decreasing to 30 knots late in the night. Rain likely and chance of thunderstorms early in the evening. Waves 2 to 4 feet subsiding to 1 to 3 feet late in the night. .SATURDAY...West wind 15 to 20 knots. Gusts up to 25 knots increasing to 30 knots in the late morning and afternoon. Mostly sunny. Waves 2 to 4 feet. .SATURDAY NIGHT...Northwest wind 15 to 20 knots. Gusts up to 30 knots decreasing to 25 knots after midnight. Partly cloudy. Waves 1 to 3 feet. .SUNDAY...Northwest wind 5 to 10 knots. Gusts up to 20 knots in the morning. Mostly sunny. Waves 1 foot or less. Note...Wave height forecasts are for ice free areas. $$ LSZ142-180400- Taconite Harbor to Silver Bay Harbor MN- 501 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. $$ LSZ143-180400- Silver Bay Harbor to Two Harbors MN- 501 PM CDT Fri Apr 17 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH SATURDAY EVENING... .TONIGHT...West wind 15 to 20 knots. Gusts up to 30 knots increasing to 35 knots late in the evening, then decreasing to 30 knots after midnight decreasing to 25 knots late in the night. Chance of rain and thunderstorms early in the evening. Waves 1 to 2 feet. .SATURDAY...West wind 15 to 20 knots with gusts to around 25 knots. Mostly sunny. Waves 1 to 2 feet building to 1 to 3 feet in the afternoon. .SATURDAY NIGHT...Northwest wind 15 to 20 knots with gusts to around 25 knots easing to 5 to 10 knots with gusts to around 20 knots after midnight. Partly cloudy. Waves 1 to 2 feet. .SUNDAY...Northwest wind 5 to 10 knots. Sunny. Waves 1 foot or less. Note...Wave height forecasts are for ice free areas. $$ LSZ144-180400- Two Harbors to Duluth MN- 501 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. $$ LSZ145-180400- Duluth MN to Port Wing WI- 501 PM CDT Fri Apr 17 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH SATURDAY EVENING... .TONIGHT...West wind 15 to 20 knots with gusts to around 30 knots. Slight chance of rain and thunderstorms early in the evening. Waves 1 to 3 feet building to 2 to 4 feet in the late evening and overnight. .SATURDAY...West wind 15 to 20 knots. Gusts up to 30 knots decreasing to 25 knots in the late morning and afternoon. Partly sunny. Waves 3 to 5 feet. .SATURDAY NIGHT...West wind 20 to 25 knots becoming northwest 10 to 15 knots with gusts to around 20 knots after midnight. Partly cloudy. Waves 3 to 5 feet subsiding to 1 to 3 feet after midnight. .SUNDAY...Northwest wind 5 to 10 knots. Sunny. Waves 1 to 2 feet. Note...Wave height forecasts are for ice free areas. $$ LSZ146-180400- Port Wing to Sand Island WI- 501 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. $$ LSZ147-180400- Sand Island to Bayfield WI- 501 PM CDT Fri Apr 17 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH SATURDAY EVENING... .TONIGHT...West wind 15 to 20 knots. Gusts up to 25 knots increasing to 30 knots after midnight. Chance of rain and thunderstorms early in the evening. Waves 3 to 5 feet. .SATURDAY...West wind 20 to 25 knots with gusts to around 30 knots. Partly sunny. Waves 4 to 6 feet. Waves occasionally to 7 feet. .SATURDAY NIGHT...Northwest wind 15 to 20 knots. Gusts up to 25 knots decreasing to 20 knots after midnight. Partly cloudy. Waves 3 to 5 feet subsiding to 1 to 3 feet after midnight. Waves occasionally to 7 feet. .SUNDAY...Northwest wind 5 to 10 knots. Sunny. Waves 1 to 2 feet. Note...Wave height forecasts are for ice free areas. $$ LSZ150-180400- Outer Apostle Islands Beyond 5 NM from Mainland- 501 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. $$ LSZ121-180400- Chequamegon Bay-Bayfield to Oak Point WI- 501 PM CDT Fri Apr 17 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH SATURDAY EVENING... .TONIGHT...West wind 10 to 15 knots with gusts to around 25 knots. Chance of rain and thunderstorms early in the evening. Waves 1 to 2 feet. .SATURDAY...West wind 15 to 20 knots with gusts to around 25 knots. Mostly sunny. Waves 1 to 2 feet. .SATURDAY NIGHT...Northwest wind 10 to 15 knots. Gusts up to 25 knots. Partly cloudy. Waves 1 to 2 feet. .SUNDAY...Northwest wind 5 to 10 knots. Sunny. Waves 1 foot or less. Note...Wave height forecasts are for ice free areas. $$ LSZ148-180400- Oak Point to Saxon Harbor WI- 501 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. $$ Graphical marine forecasts are available online at: weather.gov/greatlakes WFO DLH  028 FZUS53 KMKX 172210 NSHMKX Nearshore Marine Forecast National Weather Service Milwaukee/Sullivan WI 510 PM CDT Fri Apr 17 2026 For waters within five nautical miles of shore on Lake Michigan LMZ643-180400- Sheboygan to Port Washington WI- 510 PM CDT Fri Apr 17 2026 ...DENSE FOG ADVISORY IN EFFECT UNTIL 4 AM CDT SATURDAY... ...SMALL CRAFT ADVISORY IN EFFECT THROUGH SATURDAY EVENING... .TONIGHT...South wind 15 to 25 knots veering southwest 15 to 20 knots after midnight, then veering west early in the morning. Gusts up to 30 knots. Patchy fog through the night. showers and a chance of thunderstorms through around midnight. Rain showers likely and slight chance of thunderstorms after midnight. Waves 5 to 7 feet subsiding to 3 to 4 feet. .SATURDAY...Northwest wind 15 to 25 knots easing to 10 to 20 knots late in the morning, then backing west in the afternoon. Gusts up to 30 knots. Mostly cloudy in the morning then becoming mostly sunny. Waves 3 to 4 feet. .SATURDAY NIGHT...West wind 15 to 25 knots becoming 15 to 20 knots late in the evening, then easing to 10 to 15 knots after midnight becoming west 10 to 15 knots early in the morning. Partly cloudy. Waves 2 to 4 feet subsiding to 1 to 2 feet in the late evening and overnight. .SUNDAY...West wind 10 to 15 knots veering northwest late in the afternoon. Slight chance of showers in the afternoon. Waves around 1 foot. $$ LMZ644-180400- Port Washington to North Point Light WI- 510 PM CDT Fri Apr 17 2026 ...DENSE FOG ADVISORY IN EFFECT UNTIL 4 AM CDT SATURDAY... ...SMALL CRAFT ADVISORY IN EFFECT THROUGH SATURDAY EVENING... .TONIGHT...South wind 15 to 20 knots veering west early in the morning. Gusts up to 25 knots. Patchy fog until early morning. showers and a chance of thunderstorms through around midnight. Rain showers likely and a chance of thunderstorms after midnight. Waves 4 to 6 feet subsiding to 3 to 5 feet late in the evening, then subsiding to 3 to 4 feet after midnight. .SATURDAY...Northwest wind 15 to 25 knots becoming west 10 to 20 knots in the afternoon. Mostly cloudy in the morning then becoming mostly sunny. Waves 2 to 4 feet. .SATURDAY NIGHT...West wind 15 to 25 knots becoming 15 to 20 knots late in the evening, then becoming west 15 to 20 knots after midnight easing to 10 to 15 knots early in the morning. Partly cloudy through around midnight then clearing. Waves 2 to 4 feet subsiding to 1 to 2 feet in the late evening and overnight. .SUNDAY...West wind 10 to 15 knots veering northwest late in the afternoon. Slight chance of showers in the afternoon. Waves 1 to 2 feet. $$ LMZ645-180400- North Point Light to Wind Point WI- 510 PM CDT Fri Apr 17 2026 ...DENSE FOG ADVISORY IN EFFECT UNTIL 4 AM CDT SATURDAY... ...SMALL CRAFT ADVISORY IN EFFECT THROUGH SATURDAY EVENING... .TONIGHT...South wind 15 to 20 knots becoming 10 to 20 knots late in the evening, then veering southwest 10 to 15 knots after midnight becoming west 15 to 20 knots early in the morning. Gusts up to 25 knots. Patchy fog until early morning. chance of thunderstorms through around midnight. Rain showers through the night. Chance of thunderstorms after midnight. Waves 3 to 5 feet subsiding to 3 to 4 feet after midnight. .SATURDAY...Northwest wind 15 to 25 knots easing to 10 to 20 knots late in the morning, then backing west 15 to 20 knots in the afternoon. Mostly cloudy in the morning then becoming mostly sunny. Waves 2 to 4 feet subsiding to 1 to 3 feet late in the afternoon. .SATURDAY NIGHT...West wind 15 to 20 knots easing to 10 to 15 knots after midnight, then becoming west 10 to 15 knots early in the morning. Partly cloudy through around midnight then clearing. Waves 2 to 4 feet subsiding to 1 to 2 feet in the late evening and overnight. .SUNDAY...West wind 10 to 15 knots veering northwest late in the afternoon. Slight chance of showers in the afternoon. Waves 1 to 2 feet. $$ LMZ646-180400- Wind Point WI to Winthrop Harbor IL- 510 PM CDT Fri Apr 17 2026 ...DENSE FOG ADVISORY IN EFFECT UNTIL 4 AM CDT SATURDAY... ...SMALL CRAFT ADVISORY IN EFFECT THROUGH SATURDAY EVENING... .TONIGHT...South wind 15 to 20 knots easing to 10 to 15 knots after midnight, then becoming west 15 to 20 knots early in the morning. Gusts up to 25 knots. Patchy fog until early morning. chance of thunderstorms through around midnight. Rain showers through the night. Chance of thunderstorms after midnight. Waves 4 to 6 feet subsiding to 3 to 5 feet late in the evening, then subsiding to 3 to 4 feet after midnight. .SATURDAY...Northwest wind 15 to 20 knots backing west in the afternoon. Gusts up to 25 knots. Mostly cloudy in the morning then clearing. Waves 2 to 4 feet subsiding to 1 to 2 feet in the afternoon. .SATURDAY NIGHT...West wind 15 to 20 knots with gusts to around 25 knots easing to 10 to 15 knots after midnight, then becoming west 10 to 15 knots early in the morning. Partly cloudy through around midnight then becoming clear. Waves 1 to 2 feet. .SUNDAY...West wind 10 to 15 knots veering northwest late in the afternoon. Slight chance of showers in the afternoon. Waves around 1 foot. $$ See Lake Michigan Open Waters Forecast for Monday through Wednesday.  893 FZUS53 KGRB 172215 NSHGRB Nearshore Marine Forecast National Weather Service Green Bay WI 515 PM CDT Fri Apr 17 2026 For waters within five nautical miles of shore on Lake Michigan LMZ522-180400- Green Bay south of line from Oconto WI to Little Sturgeon Bay WI- 515 PM CDT Fri Apr 17 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 AM CDT SATURDAY... .LATE THIS AFTERNOON...S wind 15 to 25 kts. Waves 2 to 4 ft. A chance of showers and thunderstorms. .TONIGHT...S wind 15 to 25 kts veering SW 10 to 15 kts, then veering NW 10 to 20 kts after midnight. Waves 2 to 4 ft subsiding to 1 to 3 ft after midnight. Patchy fog. a chance of thunderstorms in the evening. Rain showers. .SATURDAY...W wind 15 to 25 kts. Waves 1 to 3 ft. Partly cloudy. A Small Craft Advisory may be needed. .SATURDAY NIGHT...W wind 10 to 15 kts. Waves 1 to 3 ft. Mostly clear. .SUNDAY...NW wind 10 to 15 kts veering N early in the afternoon. Waves 2 ft or less. Partly cloudy. $$ 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- 515 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. $$ LMZ541-180400- Rock Island Passage to Sturgeon Bay WI- 515 PM CDT Fri Apr 17 2026 ...DENSE FOG ADVISORY IN EFFECT UNTIL 4 AM CDT SATURDAY... ...SMALL CRAFT ADVISORY IN EFFECT THROUGH SATURDAY MORNING... .LATE THIS AFTERNOON...S wind 15 to 25 kts. Waves 4 to 7 ft. Patchy dense fog. a slight chance of showers and thunderstorms. .TONIGHT...S wind 15 to 25 kts veering NW after midnight. Waves 5 to 8 ft. Patchy dense fog. a chance of thunderstorms in the evening. Rain showers likely. .SATURDAY...NW wind 15 to 25 kts backing W 10 to 15 kts in the late morning and afternoon. Waves 3 to 5 ft subsiding to 1 to 3 ft in the afternoon. Partly cloudy. .SATURDAY NIGHT...W wind 10 to 15 kts. Waves 1 to 3 ft. Partly cloudy. .SUNDAY...NW wind 10 to 15 kts veering N early in the afternoon. Waves 2 ft or less. Partly cloudy. $$ LMZ542-543-180400- Sturgeon Bay to Two Rivers WI-Two Rivers to Sheboygan WI- 515 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.