279 FZUS53 KDLH 201722 NSHDLH Nearshore Marine Forecast National Weather Service Duluth MN 1222 PM CDT Wed May 20 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. LSZ140-202200- Grand Portage to Grand Marais MN- 1222 PM CDT Wed May 20 2026 .REST OF TODAY...South wind 10 to 15 knots. Mostly sunny. Waves 1 to 2 feet. .TONIGHT...Southwest wind 10 to 15 knots becoming west 5 knots after midnight. Mostly clear. Waves 1 to 2 feet. .THURSDAY...Southeast wind 5 to 10 knots. Sunny. Waves 1 foot or less. .THURSDAY NIGHT...Northeast wind 5 to 10 knots. Partly cloudy. Waves 1 to 2 feet. $$ LSZ141-202200- Grand Marais to Taconite Harbor MN- 1222 PM CDT Wed May 20 2026 .REST OF TODAY...South wind 5 knots. Partly sunny early in the afternoon then clearing. Waves 1 foot or less. .TONIGHT...East wind 5 knots early in the evening becoming variable 10 knots or less. Mostly clear. Waves 1 foot or less. .THURSDAY...East wind 5 to 10 knots. Sunny. Waves 1 foot or less. .THURSDAY NIGHT...Northeast wind 5 to 10 knots. Partly cloudy in the evening then becoming mostly cloudy. Waves 1 to 2 feet. $$ LSZ142-202200- Taconite Harbor to Silver Bay Harbor MN- 1222 PM CDT Wed May 20 2026 .REST OF TODAY...South wind 5 knots. Mostly sunny. Waves 1 foot or less. .TONIGHT...Northeast wind 5 knots early in the evening becoming variable 10 knots or less. Mostly clear. Waves 1 foot or less. .THURSDAY...Variable winds 10 knots or less becoming east 5 knots in the late morning and afternoon. Mostly sunny. Waves 1 foot or less. .THURSDAY NIGHT...Northeast wind 5 knots. Partly cloudy in the evening then becoming mostly cloudy. Waves 1 foot or less. $$ LSZ143-202200- Silver Bay Harbor to Two Harbors MN- 1222 PM CDT Wed May 20 2026 .REST OF TODAY...Southeast wind 5 knots. Partly sunny early in the afternoon then clearing. Waves 1 foot or less. .TONIGHT...Northeast wind 5 knots. Mostly clear. Waves 1 foot or less. .THURSDAY...Northeast wind 5 to 10 knots. Mostly sunny. Waves 1 foot or less. .THURSDAY NIGHT...Northeast wind 5 to 10 knots. Partly cloudy in the evening then becoming mostly cloudy. Waves 1 foot or less. $$ LSZ144-202200- Two Harbors to Duluth MN- 1222 PM CDT Wed May 20 2026 .REST OF TODAY...South wind 5 knots becoming east late. Mostly sunny. Waves 1 foot or less. .TONIGHT...Northeast wind 5 knots. Mostly clear. Waves 1 foot or less. .THURSDAY...Northeast wind 10 to 15 knots with gusts to around 20 knots. Sunny. Waves 1 foot or less. .THURSDAY NIGHT...Northeast wind 10 to 15 knots with gusts to around 20 knots easing to 5 knots early in the morning. Partly cloudy. Waves 1 to 2 feet. $$ LSZ145-202200- Duluth MN to Port Wing WI- 1222 PM CDT Wed May 20 2026 .REST OF TODAY...East wind 5 knots. Sunny. Waves 1 foot or less. .TONIGHT...East wind 5 knots. Mostly clear. Waves 1 foot or less. .THURSDAY...Northeast wind 10 to 15 knots with gusts to around 20 knots. Mostly sunny. Waves 1 to 2 feet. .THURSDAY NIGHT...Northeast wind 10 to 15 knots with gusts to around 20 knots easing to 5 knots early in the morning. Partly cloudy. Waves 1 to 2 feet. $$ LSZ146-202200- Port Wing to Sand Island WI- 1222 PM CDT Wed May 20 2026 .REST OF TODAY...South wind 5 knots becoming east late. Sunny. Waves 1 foot or less. .TONIGHT...East wind 5 knots. Mostly clear. Waves 1 foot or less. .THURSDAY...Variable winds 10 knots or less becoming northeast 5 to 10 knots with gusts to around 20 knots in the late morning and afternoon. Mostly sunny. Waves 1 foot or less. .THURSDAY NIGHT...Northeast wind 5 to 10 knots. Partly cloudy inthe evening then becoming mostly cloudy. Waves 1 foot or less. $$ LSZ147-202200- Sand Island to Bayfield WI- 1222 PM CDT Wed May 20 2026 .REST OF TODAY...Southeast wind 5 knots. Sunny. Waves 1 foot or less. .TONIGHT...Southeast wind 5 knots. Mostly clear. Waves 1 foot or less. .THURSDAY...Southeast wind 5 knots becoming east in the late morning and afternoon. Mostly sunny. Waves 1 foot or less. .THURSDAY NIGHT...East wind 5 to 10 knots becoming north early in the morning. Partly cloudy in the evening then becoming mostly cloudy. Waves 1 foot or less. $$ LSZ150-202200- Outer Apostle Islands Beyond 5 NM from Mainland- 1222 PM CDT Wed May 20 2026 .REST OF TODAY...Southeast wind 5 knots. Sunny. Waves 1 foot or less. .TONIGHT...Southeast wind 5 knots. Mostly clear. Waves 1 foot or less. .THURSDAY...Southeast wind 5 knots becoming east in the afternoon. Sunny. Waves 1 foot or less. .THURSDAY NIGHT...East wind 5 to 10 knots becoming southeast after midnight. Partly cloudy in the evening then becoming mostly cloudy. Waves 1 to 2 feet. $$ LSZ121-202200- Chequamegon Bay-Bayfield to Oak Point WI- 1222 PM CDT Wed May 20 2026 .REST OF TODAY...East wind 5 knots. Mostly sunny. Waves 1 foot or less. .TONIGHT...East wind 5 knots until early morning becoming variable 10 knots or less. Mostly clear. Waves 1 foot or less. .THURSDAY...South wind 5 knots becoming east in the afternoon. Mostly sunny. Waves 1 foot or less. .THURSDAY NIGHT...Northeast wind 5 to 10 knots becoming south after midnight. Partly cloudy. Waves 1 foot or less. $$ LSZ148-202200- Oak Point to Saxon Harbor WI- 1222 PM CDT Wed May 20 2026 .REST OF TODAY...East wind 5 knots. Sunny. Waves 1 foot or less. .TONIGHT...East wind 5 knots becoming south early in the morning. Mostly clear. Waves 1 foot or less. .THURSDAY...South wind 5 knots becoming east in the afternoon. Mostly sunny. Waves 1 foot or less. .THURSDAY NIGHT...East wind 5 to 10 knots becoming south after midnight. Partly cloudy. Waves 1 foot or less. $$ Graphical marine forecasts are available online at: weather.gov/greatlakes WFO DLH  031 FZUS53 KGRR 201738 NSHGRR Nearshore Marine Forecast National Weather Service Grand Rapids MI 138 PM EDT Wed May 20 2026 For waters within five nautical miles of shore on Lake Michigan LMZ849-210800- Pentwater to Manistee MI- 138 PM EDT Wed May 20 2026 .THROUGH EARLY EVENING...North winds 20 to 25 knots. Sunny. Waves 2 to 4 feet. .TONIGHT...Northeast winds 10 to 20 knots. Mostly clear. Waves 2 to 3 feet. .THURSDAY...Northeast winds 5 to 15 knots backing north 10 to 20 knots early in the afternoon. Mostly sunny. Waves 1 to 2 feet. .THURSDAY NIGHT...North winds 10 to 15 knots veering east in the late evening and overnight. Partly cloudy. Waves 1 to 3 feet. .FRIDAY...East winds 10 to 20 knots. Mostly cloudy. Waves 1 to 2 feet. .FRIDAY NIGHT...East winds 15 to 25 knots. Rain showers likely. Waves 1 to 3 feet. .SATURDAY...Northeast winds 10 to 20 knots. Mostly cloudy with a chance of rain showers. Waves 1 to 2 feet. .SUNDAY...Southwest winds 5 to 10 knots. Mostly cloudy. Waves 1 foot or less. .MEMORIAL DAY...South winds 5 to 10 knots veering southwest 10 to 15 knots early in the afternoon. Mostly sunny. Waves 1 foot or less. $$ LMZ848-210800- Whitehall to Pentwater MI- 138 PM EDT Wed May 20 2026 .THROUGH EARLY EVENING...North winds 20 to 25 knots. Sunny. Waves 2 to 4 feet. .TONIGHT...North winds 15 to 25 knots veering northeast 10 to 20 knots after midnight. Partly cloudy. Waves 2 to 4 feet subsiding to 1 to 3 feet in the late evening and overnight. .THURSDAY...Northeast winds 10 to 20 knots backing north early in the afternoon. Mostly sunny. Waves 1 to 2 feet. .THURSDAY NIGHT...Northeast winds 10 to 20 knots veering east in the late evening and overnight. Mostly cloudy. Waves 1 to 3 feet. .FRIDAY...East winds 15 to 25 knots. Mostly cloudy. Waves 1 to 2 feet. .FRIDAY NIGHT...East winds 20 to 25 knots. Rain showers likely. Waves 1 to 3 feet. .SATURDAY...East winds 15 to 20 knots backing north early in the afternoon. Mostly cloudy with a chance of rain showers. Waves 1 to 2 feet. .SUNDAY...South winds 5 to 10 knots veering southwest early in the afternoon. Mostly cloudy. Waves 1 foot or less. .MEMORIAL DAY...Southeast winds 5 to 15 knots veering southwest in the late morning and afternoon. Mostly sunny. Waves 1 foot or less. $$ LMZ847-210800- Grand Haven to Whitehall MI- 138 PM EDT Wed May 20 2026 .THROUGH EARLY EVENING...Northwest winds to 30 knots. Mostly sunny. Waves 3 to 5 feet. .TONIGHT...North winds 15 to 25 knots veering northeast 10 to 20 knots in the late evening and overnight. Partly cloudy. Waves 3 to 5 feet subsiding to 1 to 3 feet in the late evening and overnight. .THURSDAY...East winds 10 to 15 knots backing north early in the afternoon. Mostly sunny. Waves around 1 foot. .THURSDAY NIGHT...East winds 15 to 20 knots. Mostly cloudy. Waves 1 to 2 feet. .FRIDAY...East winds 15 to 25 knots. Mostly cloudy. Waves 1 to 3 feet. .FRIDAY NIGHT...East winds to 30 knots. Rain showers likely. Waves 1 to 3 feet. .SATURDAY...East winds 15 to 25 knots veering west around 15 knots early in the afternoon. Mostly cloudy with a chance of rain showers. Waves 1 to 2 feet. .SUNDAY...South winds 5 to 10 knots veering southwest in the late morning and afternoon. Mostly cloudy. Waves less than 1 foot. .MEMORIAL DAY...East winds 5 to 10 knots veering south in the late morning and early afternoon, then veering southwest early in the afternoon. Partly sunny. Waves 1 foot or less. $$ LMZ846-210800- Holland to Grand Haven MI- 138 PM EDT Wed May 20 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT... .THROUGH EARLY EVENING...Northwest winds to 30 knots. Mostly sunny. Waves 3 to 5 feet. .TONIGHT...North winds to 30 knots veering northeast 15 to 20 knots in the late evening and overnight. Partly cloudy. Waves3 to 5 feet subsiding to 1 to 2 feet after midnight. .THURSDAY...East winds 10 to 15 knots. Mostly sunny. Waves around 1 foot. .THURSDAY NIGHT...East winds 15 to 20 knots. Mostly cloudy. Waves 1 to 2 feet. .FRIDAY...East winds 15 to 25 knots. Mostly cloudy. Waves 1 to 3 feet. .FRIDAY NIGHT...East winds 20 to 25 knots. Rain showers. Waves 2 to 3 feet. .SATURDAY...East winds 15 to 25 knots veering west 10 to 15 knots early in the afternoon. Mostly cloudy with rain showers. Waves 1 to 3 feet. .SUNDAY...South winds 5 to 10 knots veering west early in the afternoon. Mostly cloudy. Waves less than 1 foot. .MEMORIAL DAY...East winds 5 to 10 knots veering west early in the afternoon. Partly sunny. Waves less than 1 foot. $$ LMZ845-210800- South Haven to Holland MI- 138 PM EDT Wed May 20 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT... .THROUGH EARLY EVENING...North winds 20 to 25 knots. Mostly sunny. Waves 4 to 6 feet. .TONIGHT...North winds 15 to 25 knots veering northeast in the late evening and overnight. Mostly clear. Waves 4 to 6 feet subsiding to 2 to 3 feet after midnight. .THURSDAY...Northeast winds 10 to 20 knots. Mostly sunny. Waves around 1 foot. .THURSDAY NIGHT...East winds 15 to 20 knots. Mostly cloudy. Waves around 1 foot. .FRIDAY...East winds 15 to 20 knots. Mostly cloudy. Waves 1 to 2 feet. .FRIDAY NIGHT...East winds 15 to 25 knots. Rain showers and a chance of thunderstorms. Waves 1 to 2 feet. .SATURDAY...East winds 15 to 20 knots backing west 10 to 15 knots early in the afternoon. Mostly cloudy with rain showers and a chance of thunderstorms. Waves around 1 foot. .SUNDAY...Southeast winds 5 to 10 knots veering west early in the afternoon. Mostly cloudy. Waves 1 foot or less. .MEMORIAL DAY...East winds 5 to 10 knots veering south in the late morning and early afternoon, then veering northwest early in the afternoon. Partly sunny. Waves less than 1 foot. $$ LMZ844-210800- St Joseph to South Haven MI- 138 PM EDT Wed May 20 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT... .THROUGH EARLY EVENING...North winds 20 to 25 knots. Mostly sunny. Waves 4 to 6 feet. .TONIGHT...North winds 15 to 25 knots veering northeast after midnight. Partly cloudy. Waves 4 to 6 feet. .THURSDAY...East winds 10 to 20 knots backing northeast early in the afternoon. Mostly sunny. Waves 1 to 3 feet. .THURSDAY NIGHT...Northeast winds 10 to 15 knots. Partly cloudy. Waves 1 to 2 feet. .FRIDAY...East winds 15 to 20 knots. Mostly cloudy. Waves 1 to 2 feet. .FRIDAY NIGHT...East winds 15 to 25 knots. Rain showers and a chance of thunderstorms. Waves 1 to 3 feet. .SATURDAY...East winds around 15 knots backing northwest in the late morning and afternoon. Mostly cloudy. Waves around 1 foot. .SUNDAY...Southeast winds around 5 knots veering southwest in the late morning and early afternoon, then veering northwest early in the afternoon. Mostly cloudy. Waves 1 foot or less. .MEMORIAL DAY...East winds 5 to 10 knots backing northwest early in the afternoon. Partly sunny. Waves less than 1 foot. $$