570 FZUS53 KDLH 191600 NSHDLH Nearshore Marine Forecast National Weather Service Duluth MN 1100 AM CDT Tue May 19 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. LSZ140-192200- Grand Portage to Grand Marais MN- 1100 AM CDT Tue May 19 2026 .REST OF TODAY...West wind 5 to 10 knots. Gusts up to 20 knots late. Chance of sprinkles through the day. Waves 1 to 2 feet. .TONIGHT...Northwest wind 5 to 10 knots. Gusts up to 20 knots early in the evening. Chance of sprinkles in the evening. Waves 1 to 2 feet. .WEDNESDAY...Northwest wind 5 knots becoming west late in the morning, then becoming southwest 10 to 15 knots with gusts to around 20 knots in the afternoon. Sunny. Waves 1 to 3 feet. .WEDNESDAY NIGHT...Southwest wind 10 to 15 knots with gusts to around 20 knots easing to 5 knots after midnight. Mostly clear. Waves 1 to 2 feet. $$ LSZ141-192200- Grand Marais to Taconite Harbor MN- 1100 AM CDT Tue May 19 2026 .REST OF TODAY...West wind 5 to 10 knots. Gusts up to 20 knots late. Chance of sprinkles in the afternoon. Waves 1 to 2 feet. .TONIGHT...Northwest wind 5 to 10 knots. Gusts up to 20 knots early in the evening. Chance of sprinkles in the evening. Waves 1 to 2 feet. .WEDNESDAY...Northwest wind 5 knots becoming south in the afternoon. Sunny. Waves 1 foot or less. .WEDNESDAY NIGHT...South wind 5 knots early in the evening becoming variable 10 knots or less. Mostly clear. Waves 1 foot or less. $$ LSZ142-192200- Taconite Harbor to Silver Bay Harbor MN- 1100 AM CDT Tue May 19 2026 .REST OF TODAY...West wind 5 to 10 knots. Gusts up to 20 knots in the afternoon. Chance of sprinkles in the afternoon. Waves 1 to 3 feet. .TONIGHT...Northwest wind 5 to 10 knots. Gusts up to 20 knots early in the evening. Chance of sprinkles in the evening. Waves 1 to 2 feet. .WEDNESDAY...Northwest wind 5 knots becoming south in the afternoon. Sunny. Waves 1 foot or less. .WEDNESDAY NIGHT...Northeast wind 5 knots early in the evening becoming variable 10 knots or less. Mostly clear. Waves 1 foot or less. $$ LSZ143-192200- Silver Bay Harbor to Two Harbors MN- 1100 AM CDT Tue May 19 2026 .REST OF TODAY...West wind 5 to 10 knots. Gusts up to 20 knots in the afternoon. Chance of sprinkles in the afternoon. Waves 1 to 3 feet. .TONIGHT...Northwest wind 5 to 10 knots. Chance of sprinkles in the evening. Waves 1 to 2 feet. .WEDNESDAY...Northwest wind 5 knots becoming south in the afternoon. Sunny. Waves 1 foot or less. .WEDNESDAY NIGHT...Northeast wind 5 knots until early morning becoming variable 10 knots or less. Mostly clear. Waves 1 foot or less. $$ LSZ144-192200- Two Harbors to Duluth MN- 1100 AM CDT Tue May 19 2026 .REST OF TODAY...West wind 10 knots rising to 10 to 15 knots with gusts to around 20 knots in the afternoon. Chance of sprinkles in the afternoon. Waves 1 to 3 feet. .TONIGHT...Northwest wind 5 to 10 knots. Gusts up to 20 knots early in the evening. Chance of sprinkles in the evening. Waves 1 to 2 feet. .WEDNESDAY...West wind 5 knots becoming southeast in the afternoon. Sunny. Waves 1 foot or less. .WEDNESDAY NIGHT...Northeast wind 5 knots. Mostly clear. Waves 1 foot or less. $$ LSZ145-192200- Duluth MN to Port Wing WI- 1100 AM CDT Tue May 19 2026 .REST OF TODAY...West wind 10 to 15 knots. Gusts up to 20 knots in the afternoon. Chance of sprinkles in the afternoon. Waves 1 to 3 feet. .TONIGHT...Northwest wind 5 to 10 knots. Gusts up to 20 knots early in the evening. Chance of sprinkles in the evening. Waves 1 to 2 feet. .WEDNESDAY...West wind 5 knots becoming east in the afternoon. Sunny. Waves 1 foot or less. .WEDNESDAY NIGHT...East wind 5 knots. Mostly clear. Waves 1 foot or less. $$ LSZ146-192200- Port Wing to Sand Island WI- 1100 AM CDT Tue May 19 2026 .REST OF TODAY...West wind 5 to 10 knots. Gusts up to 20 knots in the afternoon. Chance of sprinkles in the afternoon. Waves 1 to 3 feet. .TONIGHT...Northwest wind 5 to 10 knots. Chance of sprinkles in the evening. Waves 1 to 2 feet. .WEDNESDAY...West wind 5 knots early in the morning becoming variable 10 knots or less, then becoming southeast 5 knots late in the afternoon. Sunny. Waves 1 foot or less. .WEDNESDAY NIGHT...East wind 5 knots in the evening becoming variable 10 knots or less. Mostly clear. Waves 1 foot or less. $$ LSZ147-192200- Sand Island to Bayfield WI- 1100 AM CDT Tue May 19 2026 .REST OF TODAY...West wind 10 knots rising to 10 to 15 knots with gusts to around 20 knots in the afternoon. Chance of sprinkles in the afternoon. Waves 1 to 3 feet. .TONIGHT...Northwest wind 5 to 10 knots. Chance of sprinkles in the evening. Waves 1 to 2 feet. .WEDNESDAY...Northwest wind 5 knots early in the morning becoming variable 10 knots or less, then becoming southeast 5 knots in the afternoon. Sunny. Waves 1 foot or less. .WEDNESDAY NIGHT...Southeast wind 5 knots. Mostly clear. Waves 1 foot or less. $$ LSZ150-192200- Outer Apostle Islands Beyond 5 NM from Mainland- 1100 AM CDT Tue May 19 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 3 PM CDT THIS AFTERNOON... .REST OF TODAY...West wind 10 knots rising to 10 to 15 knots with gusts to around 20 knots in the afternoon. Chance of sprinkles in the afternoon. Waves 2 to 4 feet. .TONIGHT...Northwest wind 10 to 15 knots easing to 5 to 10 knots in the late evening and overnight. Chance of sprinkles in the evening. Waves 1 to 3 feet. .WEDNESDAY...Northwest wind 5 knots becoming west late in the morning, then becoming southeast in the afternoon. Sunny. Waves 1 foot or less. .WEDNESDAY NIGHT...Southeast wind 5 knots. Mostly clear. Waves 1 foot or less. $$ LSZ121-192200- Chequamegon Bay-Bayfield to Oak Point WI- 1100 AM CDT Tue May 19 2026 .REST OF TODAY...West wind 10 to 15 knots with gusts to around 20 knots. Chance of sprinkles in the afternoon. Waves 1 foot or less. .TONIGHT...Northwest wind 5 to 10 knots. Gusts up to 20 knots early in the evening. Chance of sprinkles in the evening. Waves 1 foot or less. .WEDNESDAY...Northwest wind 5 knots becoming east in the afternoon. Sunny. Waves 1 foot or less. .WEDNESDAY NIGHT...East wind 5 knots becoming south after midnight. Partly cloudy. Waves 1 foot or less. $$ LSZ148-192200- Oak Point to Saxon Harbor WI- 1100 AM CDT Tue May 19 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 3 PM CDT THIS AFTERNOON... .REST OF TODAY...West wind 10 to 15 knots. Gusts up to 20 knots in the afternoon. Chance of sprinkles in the afternoon. Waves 2 to 4 feet. .TONIGHT...Northwest wind 5 to 10 knots. Gusts up to 20 knots early in the evening. Chance of sprinkles in the evening. Waves 1 to 3 feet. .WEDNESDAY...Northwest wind 5 knots becoming east in the afternoon. Sunny. Waves 1 foot or less. .WEDNESDAY NIGHT...Southeast wind 5 knots becoming south after midnight. Partly cloudy. Waves 1 foot or less. $$ Graphical marine forecasts are available online at: weather.gov/greatlakes WFO DLH  189 FZUS53 KMKX 191610 NSHMKX Nearshore Marine Forecast National Weather Service Milwaukee/Sullivan WI 1110 AM CDT Tue May 19 2026 For waters within five nautical miles of shore on Lake Michigan LMZ643-192200- Sheboygan to Port Washington WI- 1110 AM CDT Tue May 19 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 PM CDT THIS AFTERNOON... .REST OF TODAY...Southwest wind 15 to 20 knots veering west late in the afternoon. Gusts up to 25 knots. Slight chance of showers early in the afternoon. Waves 3 to 4 feet. .TONIGHT...West wind 15 to 20 knots veering northwest late in the evening, then easing to 10 to 15 knots after midnight becoming northwest 10 to 15 knots early in the morning. Partly cloudy. Waves 1 to 2 feet. .WEDNESDAY...North wind 10 to 15 knots veering northeast late in the afternoon. Mostly sunny. Waves 1 to 2 feet building to 2 to 4 feet late in the afternoon. .WEDNESDAY NIGHT...Northeast wind 10 to 15 knots. Partly cloudy. Waves 2 to 4 feet subsiding to 1 to 3 feet in the late evening and early morning, then building to 2 to 4 feet early in the morning. $$ LMZ644-192200- Port Washington to North Point Light WI- 1110 AM CDT Tue May 19 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 PM CDT THIS AFTERNOON... .REST OF TODAY...West wind 15 to 20 knots. Gusts up to 25 knots. Slight chance of showers early in the afternoon. Waves 2 to 4 feet subsiding to 1 to 2 feet late in the afternoon. .TONIGHT...Northwest wind 15 to 20 knots easing to 10 to 15 knots late in the evening, then becoming northwest 10 to 15 knots after midnight veering north early in the morning. Partly cloudy. Waves 1 to 2 feet. .WEDNESDAY...North wind 10 to 15 knots veering northeast in the afternoon. Partly sunny. Waves 1 to 2 feet building to 2 to 4 feet late in the afternoon. .WEDNESDAY NIGHT...Northeast wind 10 to 15 knots rising to 15 to 20 knots early in the morning. Partly cloudy. Waves 2 to 4 feet. $$ LMZ645-192200- North Point Light to Wind Point WI- 1110 AM CDT Tue May 19 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 PM CDT THIS AFTERNOON... .REST OF TODAY...Southwest wind 15 to 20 knots veering west late in the afternoon. Gusts up to 25 knots. Mostly cloudy. Waves 1 to 2 feet. .TONIGHT...Northwest wind 10 to 15 knots veering north early in the morning. Gusts up to 20 knots. Partly cloudy. Waves 1 to 2 feet. .WEDNESDAY...North wind 10 to 15 knots becoming northeast 15 to 20 knots early in the afternoon, then easing to 10 to 15 knots late in the afternoon. Partly sunny. Waves 1 to 2 feet building to 2 to 4 feet in the afternoon. .WEDNESDAY NIGHT...Northeast wind 15 to 20 knots. Partly cloudy. Waves 3 to 4 feet. $$ LMZ646-192200- Wind Point WI to Winthrop Harbor IL- 1110 AM CDT Tue May 19 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 PM CDT THIS AFTERNOON... .REST OF TODAY...Southwest wind 15 to 20 knots becoming west 10 to 15 knots late in the afternoon. Gusts up to 25 knots. Slight chance of showers early in the afternoon. Waves 1 to 2 feet. .TONIGHT...Northwest wind 10 to 15 knots veering north early in the morning. Gusts up to 20 knots. Partly cloudy. Waves 1 to 2 feet. .WEDNESDAY...North wind 10 to 15 knots veering northeast with gusts to around 20 knots in the afternoon. Partly sunny. Waves 1 to 2 feet building to 2 to 4 feet in the afternoon. .WEDNESDAY NIGHT...Northeast wind 15 to 20 knots. Partly cloudy. Waves 3 to 4 feet. $$ See Lake Michigan Open Waters Forecast for Thursday through Saturday.  845 FZUS53 KGRB 191626 NSHGRB Nearshore Marine Forecast National Weather Service Green Bay WI 1126 AM CDT Tue May 19 2026 For waters within five nautical miles of shore on Lake Michigan LMZ521-522-192200- Green Bay south of line from Cedar River to Rock Island Passage and north of a line from Oconto WI to Little Sturgeon Bay WI- Green Bay south of line from Oconto WI to Little Sturgeon Bay WI- 1126 AM CDT Tue May 19 2026 ...DENSE FOG ADVISORY IN EFFECT UNTIL NOON CDT TODAY... ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 7 PM CDT THIS EVENING... .THIS AFTERNOON...SW wind 10 to 15 kts veering W early in the afternoon. Waves 1 to 3 ft. Patchy dense fog during the morning. a slight chance of showers. .TONIGHT...NW wind 10 to 15 kts. Waves 2 ft or less. Mostly cloudy. .WEDNESDAY...N wind 5 to 10 kts veering E early in the afternoon. Waves 2 ft or less. Mostly sunny. .WEDNESDAY NIGHT...E wind 5 to 10 kts backing NE after midnight. Waves 2 ft or less. Partly cloudy in the evening then becoming mostly cloudy. $$ LMZ541-192200- Rock Island Passage to Sturgeon Bay WI- 1126 AM CDT Tue May 19 2026 ...DENSE FOG ADVISORY IN EFFECT UNTIL NOON CDT TODAY... ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 7 PM CDT THIS EVENING... .THIS AFTERNOON...SW wind 10 to 15 kts veering NW early in the afternoon. Waves 4 to 7 ft. Patchy dense fog. a chance of showers. .TONIGHT...NW wind 10 to 15 kts. Waves 2 to 4 ft subsiding to 1 to 3 ft after midnight. Mostly cloudy. .WEDNESDAY...N wind 5 to 10 kts veering E early in the afternoon. Waves 2 ft or less. Mostly sunny. .WEDNESDAY NIGHT...E wind 5 to 10 kts backing NE in the late evening and overnight. Waves 2 ft or less. Partly cloudy. $$ LMZ542-543-192200- Sturgeon Bay to Two Rivers WI-Two Rivers to Sheboygan WI- 1126 AM CDT Tue May 19 2026 ...DENSE FOG ADVISORY IN EFFECT UNTIL NOON CDT TODAY... ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 7 PM CDT THIS EVENING... .THIS AFTERNOON...SW wind 10 to 20 kts veering W early in the afternoon. Waves 4 to 7 ft. A chance of showers. .TONIGHT...NW wind 10 to 15 kts veering N after midnight. Waves 1 to 3 ft. Mostly cloudy. .WEDNESDAY...N wind 10 to 15 kts veering NE in the late morning and afternoon. Waves 2 ft or less. Mostly sunny. .WEDNESDAY NIGHT...NE wind 5 to 10 kts. Waves 2 ft or less. Partly cloudy. $$ See Lake Michigan Open Lake Forecast for Thursday through Saturday. Wave height forecast is for ice free areas.