916 FZUS53 KMKX 180010 NSHMKX Nearshore Marine Forecast National Weather Service Milwaukee/Sullivan WI 710 PM CDT Fri Apr 17 2026 For waters within five nautical miles of shore on Lake Michigan LMZ643-180400- Sheboygan to Port Washington WI- 710 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 10 to 20 knots becoming 15 to 20 knots late in the evening, then veering southwest after midnight veering west early in the morning. Gusts up to 25 knots. Patchy dense fog through the night. showers and a chance of thunderstorms through around midnight. Rain showers likely and a chance of thunderstorms after midnight. Waves 5 to 7 feet subsiding to 3 to 4 feet. .SATURDAY...West wind 15 to 20 knots becoming 10 to 20 knots late in the morning, then becoming west 10 to 20 knots in the afternoon. Gusts up to 25 knots. Mostly cloudy in the morning then becoming mostly sunny. Waves 3 to 4 feet. .SATURDAY NIGHT...West wind 15 to 20 knots with gusts to around 25 knots easing to 10 to 15 knots with gusts to around 20 knots after midnight, then 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 1 to 2 feet. $$ LMZ644-180400- Port Washington to North Point Light WI- 710 PM CDT Fri Apr 17 2026 ...DENSE FOG ADVISORY IN EFFECT UNTIL 4 AM CDT SATURDAY... ...SMALL CRAFT ADVISORY IN EFFECT THROUGH SATURDAY EVENING... .TONIGHT...South wind 10 to 15 knots veering southwest after midnight, then becoming west 15 to 20 knots early in the morning. Gusts up to 25 knots. Patchy dense fog through the night. showers and thunderstorms through around midnight. Rain showers likely and a chance of thunderstorms after midnight. Waves 4 to 6 feet subsiding to 3 to 5 feet late in the evening, then subsiding to 3 to 4 feet after midnight. .SATURDAY...West wind 15 to 20 knots becoming 10 to 20 knots late in the morning, then becoming west 10 to 20 knots in the afternoon. Gusts up to 25 knots. Mostly cloudy in the morning then becoming mostly sunny. Waves 2 to 4 feet. .SATURDAY NIGHT...West wind 15 to 20 knots with gusts to around 25 knots easing to 10 to 15 knots with gusts to around 20 knots after midnight, then becoming west 10 to 15 knots early in the morning. Partly cloudy through around midnight then clearing. Waves 2 to 4 feet subsiding to 1 to 2 feet in the late evening and overnight. .SUNDAY...West wind 10 to 15 knots veering northwest late in the afternoon. Slight chance of showers in the afternoon. Waves 1 to 2 feet. $$ LMZ645-180400- North Point Light to Wind Point WI- 710 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 10 to 15 knots veering west early in the morning. Gusts up to 25 knots. Thunderstorms through around midnight. Rain showers through the night. Chance of thunderstorms after midnight. patchy dense fog in the late evening and overnight. Waves 3 to 5 feet subsiding to 3 to 4 feet after midnight. .SATURDAY...West wind 15 to 20 knots becoming 10 to 20 knots late in the afternoon. Gusts up to 25 knots. 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 with gusts to around 25 knots easing to 10 to 15 knots with gusts to around 20 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. $$ LMZ646-180400- Wind Point WI to Winthrop Harbor IL- 710 PM CDT Fri Apr 17 2026 ...DENSE FOG ADVISORY IN EFFECT UNTIL 4 AM CDT SATURDAY... ...SMALL CRAFT ADVISORY IN EFFECT THROUGH SATURDAY EVENING... .TONIGHT...South wind 10 to 15 knots rising to 15 to 20 knots late in the evening, then becoming southwest 10 to 15 knots after midnight veering west early in the morning. Gusts up to 25 knots. Thunderstorms through around midnight. Rain showers through the night. Chance of thunderstorms after midnight. patchy dense fog in the late evening and overnight. Waves 4 to 6 feet subsiding to 3 to 5 feet late in the evening, then subsiding to 3 to 4 feet after midnight. .SATURDAY...West wind 15 to 20 knots. Gusts up to 25 knots. Mostly cloudy in the morning then clearing. Waves 2 to 4 feet subsiding to 1 to 2 feet in the afternoon. .SATURDAY NIGHT...West wind 15 to 20 knots with gusts to around 25 knots easing to 10 to 15 knots after midnight, then becoming west 10 to 15 knots early in the morning. Partly cloudy through around midnight then becoming clear. Waves 1 to 2 feet. .SUNDAY...West wind 10 to 15 knots veering northwest late in the afternoon. Slight chance of showers in the afternoon. Waves around 1 foot. $$ See Lake Michigan Open Waters Forecast for Monday through Wednesday.  744 FZUS53 KDLH 180038 NSHDLH Nearshore Marine Forecast National Weather Service Duluth MN 738 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. LSZ140-181000- Grand Portage to Grand Marais MN- 738 PM CDT Fri Apr 17 2026 ...GALE WARNING IN EFFECT UNTIL 3 AM CDT SATURDAY... .REST OF TONIGHT...North wind 15 to 20 knots with gusts to around 30 knots becoming west with gales to around 35 knots in the late evening and overnight. Patchy fog early in the evening. Rain showers likely early in the evening. Slight chance of thunderstorms in the evening. Chance of rain showers late in the evening. Waves 2 to 4 feet subsiding to 1 to 3 feet toward daybreak. .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 after midnight. Partly cloudy in the evening then becoming mostly 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. $$ LSZ141-181000- Grand Marais to Taconite Harbor MN- 738 PM CDT Fri Apr 17 2026 ...GALE WARNING IN EFFECT UNTIL 3 AM CDT SATURDAY... .REST OF TONIGHT...Northwest wind 20 to 25 knots with gales to around 45 knots becoming west 15 to 20 knots with gales to around 40 knots in the late evening and overnight. Chance of rain showers early in the evening, then slight chance of rain showers late in the evening. Waves 2 to 4 feet subsiding to 1 to 3 feet after midnight. .SATURDAY...West wind 20 to 25 knots. Gusts up to 25 knots increasing to 30 knots in the afternoon. Mostly sunny. Waves 2 to 4 feet. A small craft advisory may be needed. .SATURDAY NIGHT...Northwest wind 15 to 20 knots. Gusts up to 30 knots decreasing to 20 knots. Partly cloudy. Waves 2 to 4 feet subsiding to 1 to 2 feet after midnight. .SUNDAY...Northwest wind 10 to 15 knots. Gusts up to 20 knots in the morning. Mostly sunny. Waves 1 foot or less. Note...Wave height forecasts are for ice free areas. $$ LSZ142-181000- Taconite Harbor to Silver Bay Harbor MN- 738 PM CDT Fri Apr 17 2026 ...GALE WARNING IN EFFECT UNTIL 3 AM CDT SATURDAY... .REST OF TONIGHT...West wind 10 to 15 knots. Gales up to 40 knots decreasing to 25 knots. Slight chance of rain showers early in the evening, then chance of sprinkles and flurries late 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 early in the morning. 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. $$ LSZ143-181000- Silver Bay Harbor to Two Harbors MN- 738 PM CDT Fri Apr 17 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH SATURDAY EVENING... .REST OF TONIGHT...West wind 15 to 20 knots. Gusts up to 25 knots. Chance of sprinkles and flurries in the evening. Waves 1 to 2 feet. .SATURDAY...West wind 15 to 20 knots with gusts to around 25 knots. Mostly sunny. Waves 1 to 3 feet. .SATURDAY NIGHT...West wind 15 to 20 knots with gusts to around 25 knots becoming northwest 5 to 10 knots with gusts to around 20 knots after midnight. Partly cloudy. Waves 1 to 3 feet. .SUNDAY...Northwest wind 5 to 10 knots. Sunny. Waves 1 foot or less. Note...Wave height forecasts are for ice free areas. $$ LSZ144-181000- Two Harbors to Duluth MN- 738 PM CDT Fri Apr 17 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH SATURDAY EVENING... .REST OF TONIGHT...West wind 15 to 20 knots with gusts to around 25 knots. Chance of sprinkles and flurries in the evening. Waves 1 to 3 feet. .SATURDAY...West wind 20 to 25 knots. Gusts up to 25 knots increasing to 30 knots in the afternoon. Partly sunny. Waves 2 to 4 feet. .SATURDAY NIGHT...West wind 20 to 25 knots with gusts to around 30 knots becoming northwest 10 to 15 knots with gusts to around 20 knots after midnight. Partly cloudy. Waves 2 to 4 feet subsiding to 1 to 2 feet after midnight. .SUNDAY...Northwest wind 5 to 10 knots. Sunny. Waves 1 foot or less. Note...Wave height forecasts are for ice free areas. $$ LSZ145-181000- Duluth MN to Port Wing WI- 738 PM CDT Fri Apr 17 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH SATURDAY EVENING... .REST OF TONIGHT...West wind 15 to 20 knots with gusts to around 25 knots. Chance of sprinkles early in the evening. Chance of flurries in the evening. Waves 2 to 4 feet. .SATURDAY...West wind 20 to 25 knots. Gusts up to 30 knots decreasing to 25 knots late in the morning, then increasing to 30 knots in the afternoon. Partly sunny. Waves 3 to 5 feet. .SATURDAY NIGHT...West wind 20 to 25 knots with gusts to around 30 knots becoming northwest 10 to 15 knots with gusts to around 20 knots after midnight. Partly cloudy. Waves 3 to 5 feet subsiding to 1 to 3 feet after midnight. .SUNDAY...Northwest wind 5 to 10 knots. Sunny. Waves 1 to 2 feet. Note...Wave height forecasts are for ice free areas. $$ LSZ146-181000- Port Wing to Sand Island WI- 738 PM CDT Fri Apr 17 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH SATURDAY EVENING... .REST OF TONIGHT...West wind 15 to 20 knots. Gusts up to 20 knots increasing to 25 knots in the late evening and overnight. Chance of rain showers early in the evening. Chance of flurries in the evening. Chance of sprinkles late in the evening. Waves 3 to 5 feet. .SATURDAY...West wind 20 to 25 knots. 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. Partly cloudy. Waves 3 to 5 feet subsiding to 1 to 2 feet. 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. $$ LSZ147-181000- Sand Island to Bayfield WI- 738 PM CDT Fri Apr 17 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH SATURDAY EVENING... .REST OF TONIGHT...West wind 15 to 20 knots with gusts to around 25 knots. Chance of rain showers in the evening. Waves 3 to 5 feet. .SATURDAY...West wind 20 to 25 knots with gusts to around 30 knots. Partly sunny. Waves 4 to 6 feet. Waves occasionally to 7 feet. .SATURDAY NIGHT...Northwest wind 15 to 20 knots. Gusts up to 25 knots. Partly cloudy. Waves 3 to 5 feet subsiding to 1 to 2 feet. Waves occasionally to 7 feet. .SUNDAY...Northwest wind 5 to 10 knots. Sunny. Waves 1 to 2 feet. Note...Wave height forecasts are for ice free areas. $$ LSZ150-181000- Outer Apostle Islands Beyond 5 NM from Mainland- 738 PM CDT Fri Apr 17 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE SATURDAY NIGHT... .REST OF TONIGHT...West wind 20 to 25 knots with gusts to around 30 knots. Chance of rain showers 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 25 knots decreasing to 20 knots after midnight. Partly cloudy. Waves 4 to 6 feet subsiding to 2 to 4 feet after midnight. Waves occasionally to 8 feet. .SUNDAY...Northwest wind 10 to 15 knots with gusts to around 20 knots becoming west 5 to 10 knots late in the afternoon. Mostly sunny. Waves 1 to 3 feet. Note...Wave height forecasts are for ice free areas. $$ LSZ121-181000- Chequamegon Bay-Bayfield to Oak Point WI- 738 PM CDT Fri Apr 17 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH SATURDAY EVENING... .REST OF TONIGHT...West wind 10 to 15 knots. Gusts up to 25 knots decreasing to 20 knots after midnight, then increasing to 25 knots toward daybreak. Chance of rain showers early in the evening, then chance of sprinkles late in the evening. Waves 1 to 2 feet. .SATURDAY...West wind 15 to 20 knots with gusts to around 25 knots. Mostly sunny. Waves 1 to 2 feet. .SATURDAY NIGHT...Northwest wind 15 to 20 knots with gusts to around 25 knots easing to 5 to 10 knots early in the morning. Partly cloudy. Waves 1 to 2 feet. .SUNDAY...Northwest wind 5 to 10 knots. Sunny. Waves 1 foot or less. Note...Wave height forecasts are for ice free areas. $$ LSZ148-181000- Oak Point to Saxon Harbor WI- 738 PM CDT Fri Apr 17 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH SATURDAY EVENING... .REST OF TONIGHT...West wind 15 to 20 knots. Gusts up to 25 knots toward daybreak. Patchy fog early in the evening. Chance of rain showers 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 30 knots decreasing to 25 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 early in the evening. 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