793 FZUS53 KDLH 201917 NSHDLH Nearshore Marine Forecast National Weather Service Duluth MN 217 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. LSZ140-210400- Grand Portage to Grand Marais MN- 217 PM CDT Wed May 20 2026 .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. .FRIDAY...East wind 15 to 20 knots with gusts to around 25 knots. Mostly sunny. Waves 1 to 2 feet building to 1 to 3 feet late in the afternoon. $$ LSZ141-210400- Grand Marais to Taconite Harbor MN- 217 PM CDT Wed May 20 2026 .TONIGHT...East wind 5 knots early in the evening becoming variable 10 knots or less. Mostly clear. Waves 1 foot or less. .THURSDAY...East wind 5 to 10 knots. Sunny. Waves 1 foot or less. .THURSDAY NIGHT...Northeast wind 5 to 10 knots. Partly cloudy in the evening then becoming mostly cloudy. Waves 1 to 2 feet. .FRIDAY...East wind 15 to 20 knots with gusts to around 25 knots. Mostly sunny. Waves 1 to 2 feet building to 1 to 3 feet late in the afternoon. $$ LSZ142-210400- Taconite Harbor to Silver Bay Harbor MN- 217 PM CDT Wed May 20 2026 .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. .FRIDAY...Northeast wind 10 to 15 knots with gusts to around 25 knots. Mostly sunny. Waves 1 to 3 feet. $$ LSZ143-210400- Silver Bay Harbor to Two Harbors MN- 217 PM CDT Wed May 20 2026 .TONIGHT...Northeast wind 5 knots. Mostly clear. Waves 1 foot or less. .THURSDAY...Northeast wind 5 to 10 knots. Mostly sunny. Waves 1 foot or less. .THURSDAY NIGHT...Northeast wind 5 to 10 knots. Partly cloudy in the evening then becoming mostly cloudy. Waves 1 foot or less. .FRIDAY...Northeast wind 15 to 20 knots with gusts to around 25 knots. Mostly sunny. Waves 1 to 2 feet. $$ LSZ144-210400- Two Harbors to Duluth MN- 217 PM CDT Wed May 20 2026 .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. .FRIDAY...Northeast wind 15 to 20 knots with gusts to around 25 knots. Partly sunny. Waves 1 to 3 feet building to 2 to 4 feet late in the afternoon. $$ LSZ145-210400- Duluth MN to Port Wing WI- 217 PM CDT Wed May 20 2026 .TONIGHT...East wind 5 knots. Mostly clear. Waves 1 foot or less. .THURSDAY...Northeast wind 10 to 15 knots with gusts to around 20 knots. Mostly sunny. Waves 1 to 2 feet. .THURSDAY NIGHT...Northeast wind 10 to 15 knots with gusts to around 20 knots easing to 5 knots early in the morning. Partly cloudy. Waves 1 to 2 feet. .FRIDAY...Northeast wind 15 to 20 knots with gusts to around 25 knots. Partly sunny. Waves 1 foot or less building to 2 to 4 feet in the afternoon. $$ LSZ146-210400- Port Wing to Sand Island WI- 217 PM CDT Wed May 20 2026 .TONIGHT...East wind 5 knots. Mostly clear. Waves 1 foot or less. .THURSDAY...Variable winds 10 knots or less becoming northeast 5 to 10knots 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 in the evening then becoming mostly cloudy. Waves 1 foot or less. .FRIDAY...Northeast wind 10 to 15 knots with gusts to around 20 knots. Partly sunny. Waves 1 to 2 feet. $$ LSZ147-210400- Sand Island to Bayfield WI- 217 PM CDT Wed May 20 2026 .TONIGHT...Southeast wind 5 knots. Mostly clear. Waves 1 foot or less. .THURSDAY...Southeast wind 5 knots becoming east in the late morning and afternoon. Mostly sunny. Waves 1 foot or less. .THURSDAY NIGHT...East wind 5 to 10 knots becoming north early in the morning. Partly cloudy in the evening then becoming mostly cloudy. Waves 1 foot or less. .FRIDAY...Northeast wind 10 to 15 knots with gusts to around 20 knots. Partly sunny. Waves 1 to 2 feet. $$ LSZ150-210400- Outer Apostle Islands Beyond 5 NM from Mainland- 217 PM CDT Wed May 20 2026 .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. .FRIDAY...East wind 10 to 15 knots with gusts to around 25 knots. Partly sunny. Waves 1 to 2 feet building to 1 to 3 feet late in the afternoon. $$ LSZ121-210400- Chequamegon Bay-Bayfield to Oak Point WI- 217 PM CDT Wed May 20 2026 .TONIGHT...East wind 5 knots until early morning becoming variable 10 knots or less. Mostly clear. Waves 1 foot or less. .THURSDAY...South wind 5 knots becoming east in the afternoon. Mostly sunny. Waves 1 foot or less. .THURSDAY NIGHT...Northeast wind 5 to 10 knots becoming south after midnight. Partly cloudy. Waves 1 foot or less. .FRIDAY...Northeast wind 10 to 15 knots with gusts to around 20 knots. Partly sunny. Waves 1 foot or less. $$ LSZ148-210400- Oak Point to Saxon Harbor WI- 217 PM CDT Wed May 20 2026 .TONIGHT...East wind 5 knots becoming south late in the night. 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. .FRIDAY...Northeast wind 10 to 15 knots with gusts to around 20 knots. Partly sunny. Waves 1 to 2 feet. $$ Graphical marine forecasts are available online at: weather.gov/greatlakes WFO DLH  868 FZUS53 KLOT 201920 NSHLOT Nearshore Marine Forecast National Weather Service Chicago/Romeoville IL 220 PM CDT Wed May 20 2026 For waters within five nautical miles of shore on Lake Michigan Waves are provided as a range of significant wave heights, which is the average of the highest 1/3 of the waves, along with the average height of the highest 10 percent of the waves which will occasionally be encountered. LMZ740>742-210330- Winthrop Harbor to Wilmette Harbor IL- Wilmette Harbor to Northerly Island IL- Northerly Island to Calumet Harbor IL- 220 PM CDT Wed May 20 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH THURSDAY AFTERNOON... .LATE THIS AFTERNOON...North winds 20 to 25 kt. Mostly sunny. Waves 3 to 6 ft occasionally to 8 ft. .TONIGHT...North winds 15 to 25 kt becoming northeast. Mostly clear in the evening, then becoming partly cloudy. Waves 3 to 6 ft occasionally to 8 ft. .THURSDAY...Northeast winds 10 to 20 kt becoming north late. Partly cloudy. Waves 3 to 6 ft occasionally to 8 ft subsiding to 2 to 4 ft. .THURSDAY NIGHT...Northeast winds 10 to 20 kt becoming east overnight. Partly cloudy in the evening, then becoming mostly cloudy. Waves 2 to 4 ft. .FRIDAY...East winds increasing to 15 to 25 kt and becoming northeast. Chance of showers in the afternoon. Waves 2 to 4 ft building to 3 to 5 ft. $$ LMZ743>745-210330- Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN- Burns Harbor to Michigan City IN- 220 PM CDT Wed May 20 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH THURSDAY MORNING... .LATE THIS AFTERNOON...North winds 20 to 25 kt. Partly cloudy. Waves 3 to 6 ft occasionally to 8 ft. .TONIGHT...North winds 15 to 25 kt becoming northeast. Partly cloudy. Waves 3 to 6 ft occasionally to 8 ft. .THURSDAY...East winds 10 to 20 kt becoming north late. Partly cloudy. Waves 3 to 5 ft subsiding to 2 to 4 ft. .THURSDAY NIGHT...Northeast winds 10 to 20 kt becoming east 10 to 15 kt overnight. Partly cloudy in the evening, then becoming mostly cloudy. Waves 2 to 4 ft. .FRIDAY...East winds 10 to 20 kt becoming northeast. Chance of showers in the afternoon. Waves 2 to 4 ft. $$ - Izzi  421 FZUS53 KGRB 201936 NSHGRB Nearshore Marine Forecast National Weather Service Green Bay WI 236 PM CDT Wed May 20 2026 For waters within five nautical miles of shore on Lake Michigan LMZ521-522-202200- Green Bay south of line from Cedar River to Rock Island Passage and north of a line from Oconto WI to Little Sturgeon Bay WI- Green Bay south of line from Oconto WI to Little Sturgeon Bay WI- 236 PM CDT Wed May 20 2026 .THIS AFTERNOON...E wind 5 to 10 kts. Waves 2 ft or less. Mostly sunny. .TONIGHT...NE wind 5 to 10 kts. Waves 2 ft or less. Mostly clear. .THURSDAY...NE wind 10 to 15 kts. Waves 2 ft or less. Partly sunny. .THURSDAY NIGHT...E wind 5 to 10 kts. Waves 2 ft or less. Partly cloudy in the evening then becoming mostly cloudy. $$ LMZ541-202200- Rock Island Passage to Sturgeon Bay WI- 236 PM CDT Wed May 20 2026 .THIS AFTERNOON...E wind 5 to 10 kts. Waves 2 ft or less. Mostly sunny. .TONIGHT...NE wind 5 to 10 kts. Waves 2 ft or less. Mostly clear. .THURSDAY...NE wind 10 to 15 kts. Waves 2 ft or less. Partly sunny. .THURSDAY NIGHT...NE wind 10 to 15 kts veering E in the late evening and overnight. Waves 1 to 3 ft. Partly cloudy in the evening then becoming mostly cloudy. $$ LMZ542-543-202200- Sturgeon Bay to Two Rivers WI-Two Rivers to Sheboygan WI- 236 PM CDT Wed May 20 2026 .THIS AFTERNOON...E wind 10 to 15 kts. Waves 2 ft or less. Partly cloudy. .TONIGHT...NE wind 10 to 15 kts. Waves 1 to 3 ft. Partly cloudy. .THURSDAY...NE wind 10 to 15 kts. Waves 1 to 3 ft. Partly cloudy in the morning then becoming mostly cloudy. .THURSDAY NIGHT...NE wind 10 to 15 kts veering E in the late evening and overnight. Waves 1 to 3 ft. Mostly cloudy. $$ See Lake Michigan Open Lake Forecast for Saturday through Monday. Wave height forecast is for ice free areas.  429 FZUS53 KGRR 201936 NSHGRR Nearshore Marine Forecast National Weather Service Grand Rapids MI 336 PM EDT Wed May 20 2026 For waters within five nautical miles of shore on Lake Michigan LMZ849-210800- Pentwater to Manistee MI- 336 PM EDT Wed May 20 2026 .THROUGH EARLY EVENING...North winds 15 to 20 knots. Sunny. Waves 2 to 3 feet. .TONIGHT...Northeast winds 10 to 20 knots. Partly cloudy. 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 3 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. Partly sunny. Waves around 1 foot. .FRIDAY NIGHT...East winds 15 to 25 knots. Cloudy with rain showers. Waves 1 to 2 feet. .SATURDAY...East winds 10 to 20 knots backing northeast early in the afternoon. Rain showers. Waves around 1 foot. .SUNDAY...Southwest winds 5 to 15 knots. Mostly cloudy. Waves 1 foot or less. .MEMORIAL DAY...Southwest winds 5 to 15 knots. Mostly sunny. Waves 1 foot or less. $$ LMZ848-210800- Whitehall to Pentwater MI- 336 PM EDT Wed May 20 2026 .THROUGH EARLY EVENING...North winds 20 to 25 knots. Sunny. Waves 2 to 4 feet. .TONIGHT...North winds 15 to 25 knots veering northeast 10 to 15 knots after midnight. Partly cloudy. Waves 2 to 4 feet subsiding to 1 to 3 feet in the late evening and overnight. .THURSDAY...Northeast winds 10 to 20 knots backing north early in the afternoon. Mostly sunny. Waves 1 to 3 feet. .THURSDAY NIGHT...North winds 10 to 20 knots veering east in the late evening and overnight. Partly cloudy. Waves 1 to 3 feet. .FRIDAY...East winds 15 to 20 knots. Partly sunny. Waves 1 to 2 feet. .FRIDAY NIGHT...East winds 20 to 25 knots. Rain showers. Waves 1 to 3 feet. .SATURDAY...East winds 15 to 20 knots backing north early in the afternoon. Mostly cloudy with rain showers. Waves 1 to 2 feet. .SUNDAY...South winds 5 to 10 knots veering southwest early in the afternoon. Mostly cloudy. Waves 1 foot or less. .MEMORIAL DAY...Northeast winds 5 to 10 knots backing southwest 10 to 15 knots in the late morning and afternoon. Mostly sunny. Waves 1 foot or less. $$ LMZ847-210800- Grand Haven to Whitehall MI- 336 PM EDT Wed May 20 2026 .THROUGH EARLY EVENING...Northwest winds 20 to 25 knots. Sunny. Waves 2 to 4 feet. .TONIGHT...North winds 15 to 25 knots veering northeast in the late evening and overnight. Partly cloudy. Waves 2 to 4 feet. .THURSDAY...Northeast 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. Partly cloudy. Waves 1 to 2 feet. .FRIDAY...East winds 15 to 25 knots. Partly sunny. Waves 1 to 2 feet. .FRIDAY NIGHT...East winds to 30 knots. Rain showers. Waves 1 to 3 feet. .SATURDAY...East winds 15 to 25 knots backing north around 15 knots early in the afternoon. Mostly cloudy with 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 1 foot or less. .MEMORIAL DAY...North winds 5 to 10 knots backing west in the late morning and afternoon. Mostly sunny. Waves 1 foot or less. $$ LMZ846-210800- Holland to Grand Haven MI- 336 PM EDT Wed May 20 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 2 AM EDT THURSDAY... .THROUGH EARLY EVENING...Northwest winds 20 to 25 knots. Sunny. Waves 3 to 5 feet. .TONIGHT...North winds 15 to 25 knots veering northeast in the late evening and overnight. Partly cloudy. Waves 3 to 5 feet subsiding to 1 to 2 feet after midnight. .THURSDAY...Northeast winds 10 to 20 knots. Mostly sunny. Waves around 1 foot. .THURSDAY NIGHT...East winds 15 to 20 knots. Partly cloudy. Waves 1 to 2 feet. .FRIDAY...East winds 15 to 25 knots. Partly sunny. Waves 1 to 2 feet. .FRIDAY NIGHT...East winds to 30 knots. Rain showers. Waves 1 to 3 feet. .SATURDAY...East winds 15 to 20 knots backing west 10 to 15 knots early in the afternoon. Mostly cloudy with rain showers. Waves 1 to 3 feet. .SUNDAY...South winds 5 to 10 knots veering southwest in the late morning and afternoon. Mostly cloudy. Waves less than 1 foot. .MEMORIAL DAY...North winds 5 to 10 knots backing west in the late morning and afternoon. Mostly sunny. Waves less than 1 foot. $$ LMZ845-210800- South Haven to Holland MI- 336 PM EDT Wed May 20 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 2 AM EDT THURSDAY... .THROUGH EARLY EVENING...North winds 20 to 25 knots. Sunny. Waves 3 to 5 feet. .TONIGHT...North winds 15 to 25 knots veering northeast after midnight. Partly cloudy. Waves 3 to 5 feet subsiding to 2 to 3 feet after midnight. .THURSDAY...East winds 10 to 15 knots backing northeast early in the afternoon. Mostly sunny. Waves around 1 foot. .THURSDAY NIGHT...Northeast winds 15 to 20 knots. Partly cloudy. Waves 1 to 2 feet. .FRIDAY...East winds 15 to 20 knots. Partly sunny. Waves around 1 foot. .FRIDAY NIGHT...East winds 15 to 25 knots. Rain showers. Waves 1 to 2 feet. .SATURDAY...East winds 15 to 20 knots veering west 10 to 15 knots early in the afternoon. Mostly cloudy with rain showers. Waves around 1 foot. .SUNDAY...Southeast winds 5 to 10 knots veering west early in the afternoon. Mostly cloudy. Waves less than 1 foot. .MEMORIAL DAY...Northeast winds around 5 knots backing northwest in the late morning and afternoon. Mostly sunny. Waves less than 1 foot. $$ LMZ844-210800- St Joseph to South Haven MI- 336 PM EDT Wed May 20 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 2 AM EDT THURSDAY... .THROUGH EARLY EVENING...North winds 20 to 25 knots. Mostly sunny. Waves 3 to 5 feet. .TONIGHT...North winds 15 to 25 knots veering northeast 10 to 20 knots after midnight. Partly cloudy. Waves 3 to 5 feet. .THURSDAY...East winds 10 to 15 knots backing north early in the afternoon. Mostly sunny. Waves 1 to 3 feet. .THURSDAY NIGHT...Northeast winds 10 to 15 knots. Partly cloudy. Waves 1 to 2 feet. .FRIDAY...East winds 15 to 20 knots. Partly sunny. Waves 1 to 2 feet. .FRIDAY NIGHT...East winds 15 to 20 knots. Rain showers. Waves 1 to 2 feet. .SATURDAY...East winds 10 to 15 knots veering west early in the afternoon. Mostly cloudy with a chance of rain showers. Waves around 1 foot. .SUNDAY...South winds 5 to 10 knots veering west early in the afternoon. Mostly cloudy. Waves less than 1 foot. .MEMORIAL DAY...Northeast winds around 5 knots backing northwest early in the afternoon. Partly sunny. Waves less than 1 foot. $$  600 FZUS53 KDLH 201941 NSHDLH Nearshore Marine Forecast National Weather Service Duluth MN 240 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. LSZ140-210400- Grand Portage to Grand Marais MN- 241 PM CDT Wed May 20 2026 .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. .FRIDAY...East wind 15 to 20 knots with gusts to around 25 knots. Mostly sunny. Waves 1 to 2 feet building to 1 to 3 feet late in the afternoon. $$ LSZ141-210400- Grand Marais to Taconite Harbor MN- 241 PM CDT Wed May 20 2026 .TONIGHT...East wind 5 knots early in the evening becoming variable 10 knots or less. Mostly clear. Waves 1 foot or less. .THURSDAY...East wind 5 to 10 knots. Sunny. Waves 1 foot or less. .THURSDAY NIGHT...Northeast wind 5 to 10 knots. Partly cloudy in the evening then becoming mostly cloudy. Waves 1 to 2 feet. .FRIDAY...East wind 15 to 20 knots with gusts to around 25 knots. Mostly sunny. Waves 1 to 2 feet building to 1 to 3 feet late in the afternoon. $$ LSZ142-210400- Taconite Harbor to Silver Bay Harbor MN- 241 PM CDT Wed May 20 2026 .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. .FRIDAY...Northeast wind 10 to 15 knots with gusts to around 25 knots. Mostly sunny. Waves 1 to 2 feet building to 1 to 3 feet late in the afternoon. $$ LSZ143-210400- Silver Bay Harbor to Two Harbors MN- 241 PM CDT Wed May 20 2026 .TONIGHT...Northeast wind 5 knots. Mostly clear. Waves 1 foot or less. .THURSDAY...Northeast wind 5 to 10 knots. Mostly sunny. Waves 1 foot or less. .THURSDAY NIGHT...Northeast wind 5 to 10 knots. Partly cloudy in the evening then becoming mostly cloudy. Waves 1 foot or less. .FRIDAY...Northeast wind 15 to 20 knots with gusts to around 25 knots. Mostly sunny. Waves 1 to 3 feet. $$ LSZ144-210400- Two Harbors to Duluth MN- 241 PM CDT Wed May 20 2026 .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 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. .FRIDAY...Northeast wind 15 to 20 knots with gusts to around 25 knots. Partly sunny. Waves 1 to 2 feet building to 2 to 4 feet in the afternoon. A small craft advisory may be needed. $$ LSZ145-210400- Duluth MN to Port Wing WI- 241 PM CDT Wed May 20 2026 .TONIGHT...East wind 5 knots. Mostly clear. Waves 1 foot or less. .THURSDAY...Northeast wind 10 to 15 knots with gusts to around 20 knots. Mostly sunny. Waves 1 to 2 feet. .THURSDAY NIGHT...Northeast wind 10 to 15 knots with gusts to around 20 knots easing to 5 knots early in the morning. Partly cloudy. Waves 1 to 2 feet. .FRIDAY...Northeast wind 15 to 20 knots with gusts to around 25 knots. Partly sunny. Waves 1 to 2 feet building to 2 to 4 feet in the afternoon. A small craft advisory may be needed. $$ LSZ146-210400- Port Wing to Sand Island WI- 241 PM CDT Wed May 20 2026 .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 in the evening then becoming mostly cloudy. Waves 1 foot or less. .FRIDAY...Northeast wind 10 to 15 knots with gusts to around 20 knots. Partly sunny. Waves 1 to 2 feet. $$ LSZ147-210400- Sand Island to Bayfield WI- 241 PM CDT Wed May 20 2026 .TONIGHT...Southeast wind 5 knots. Mostly clear. Waves 1 foot or less. .THURSDAY...Southeast wind 5 knots becoming east in the late morning and afternoon. Mostly sunny. Waves 1 foot or less. .THURSDAY NIGHT...East wind 5 to 10 knots becoming north early in the morning. Partly cloudy in the evening then becoming mostly cloudy. Waves 1 foot or less. .FRIDAY...Northeast wind 10 to 15 knots with gusts to around 20 knots. Partly sunny. Waves 1 to 3 feet. $$ LSZ150-210400- Outer Apostle Islands Beyond 5 NM from Mainland- 241 PM CDT Wed May 20 2026 .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. .FRIDAY...East wind 10 to 15 knots with gusts to around 25 knots. Partly sunny. Waves 1 to 2 feet building to 2 to 4 feet late in the afternoon. $$ LSZ121-210400- Chequamegon Bay-Bayfield to Oak Point WI- 241 PM CDT Wed May 20 2026 .TONIGHT...East wind 5 knots until early morning becoming variable 10 knots or less. Mostly clear. Waves 1 foot or less. .THURSDAY...South wind 5 knots becoming east in the afternoon. Mostly sunny. Waves 1 foot or less. .THURSDAY NIGHT...Northeast wind 5 to 10 knots becoming south after midnight. Partly cloudy. Waves 1 foot or less. .FRIDAY...Northeast wind 10 to 15 knots with gusts to around 20 knots. Partly sunny. Waves 1 to 2 feet. $$ LSZ148-210400- Oak Point to Saxon Harbor WI- 241 PM CDT Wed May 20 2026 .TONIGHT...East wind 5 knots becoming south late in the night. 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. .FRIDAY...Northeast wind 10 to 15 knots with gusts to around 20 knots. Partly sunny. Waves 1 to 3 feet. $$ Graphical marine forecasts are available online at: weather.gov/greatlakes WFO DLH  662 FZUS53 KDTX 201942 NSHDTX Nearshore Marine Forecast for Michigan National Weather Service Detroit/Pontiac MI 342 PM EDT Wed May 20 2026 For waters within five nautical miles of shore Waves are the significant wave height - the average of the highest 1/3 of the wave spectrum. Occasional wave height is the average of the highest 1/10 of the wave spectrum. LHZ422-210345- Inner Saginaw Bay SW of Point Au Gres to Bay Port MI- 342 PM EDT Wed May 20 2026 .TONIGHT...East winds 15 to 20 knots becoming northeast 10 to 15 knots in the late evening and overnight. Mostly clear. Waves 1 to 3 feet. .THURSDAY...Northeast winds 10 to 15 knots increasing to 15 to 20 knots in the late morning and afternoon. Sunny until late afternoon becoming partly cloudy. Waves 1 to 3 feet building to 2 to 4 feet early in the afternoon. .THURSDAY NIGHT...Northeast winds 15 to 20 knots. Mostly cloudy early in the evening becoming partly cloudy. Waves 2 to 4 feet subsiding to 1 to 3 feet after midnight. .FRIDAY...East winds 15 to 20 knots becoming northeast 20 to 25 knots with gusts to 30 knots early in the afternoon. Mostly sunny early in the morning becoming partly cloudy. Waves 2 to 4 feet. A Small Craft Advisory may be needed. See Lake Huron Open Lake Forecast for days 3 through 5. $$ LHZ421-210345- Outer Saginaw Bay SW of Alabaster to Port Austin MI to Inner Saginaw Bay- 342 PM EDT Wed May 20 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL MIDNIGHT EDT TONIGHT... .TONIGHT...Northeast winds 10 to 15 knots. Mostly clear. Waves 2 to 4 feet subsiding to 1 to 3 feet after midnight. .THURSDAY...Northeast winds 10 to 15 knots increasing to 15 to 20 knots in the late morning and afternoon. Sunny until late afternoon becoming partly cloudy. Waves 2 to 4 feet. .THURSDAY NIGHT...Northeast winds 15 to 20 knots. Partly cloudy. Waves 1 to 3 feet. .FRIDAY...East winds 15 to 20 knots becoming northeast 20 to 25 knots early in the afternoon. Partly cloudy. Waves 1 to 3 feet building to 2 to 4 feet in the late morning and afternoon. See Lake Huron Open Lake Forecast for days 3 through 5. $$ LHZ441-210345- Port Austin to Harbor Beach MI- 342 PM EDT Wed May 20 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL MIDNIGHT EDT TONIGHT... .TONIGHT...North winds 10 to 15 knots. Mostly clear. Waves 2 to 4 feet. .THURSDAY...Northeast winds 10 to 15 knots. Mostly sunny. Waves 2 to 4 feet. .THURSDAY NIGHT...Northeast winds 10 to 15 knots. Mostly cloudy early in the evening becoming partly cloudy. Waves 1 to 3 feet. .FRIDAY...East winds 10 to 15 knots. Partly cloudy. Waves 1 to 3 feet. See Lake Huron Open Lake Forecast for days 3 through 5. $$ LHZ442-210345- Harbor Beach to Port Sanilac MI- 342 PM EDT Wed May 20 2026 .TONIGHT...North winds 10 to 15 knots diminishing to 5 to 10 knots this evening, then increasing to 10 to 15 knots after midnight. Partly cloudy. Waves 2 to 4 feet. .THURSDAY...Northeast winds 10 to 15 knots. Sunny. Waves 1 to 3 feet. .THURSDAY NIGHT...North winds 15 to 20 knots becoming northeast 10 to 15 knots in the late evening and overnight. Partly cloudy. Waves 2 to 4 feet subsiding to 1 to 3 feet after midnight. .FRIDAY...East winds 10 to 15 knots. Partly cloudy until late afternoon becoming mostly cloudy. Waves 2 to 4 feet. See Lake Huron Open Lake Forecast for days 3 through 5. $$ LHZ443-210345- Port Sanilac to Port Huron MI- 342 PM EDT Wed May 20 2026 .TONIGHT...North winds 10 to 15 knots. Mostly cloudy in the evening then clearing. Waves 2 to 4 feet subsiding to 1 to 3 feet in the late evening and overnight. .THURSDAY...Northeast winds 10 to 15 knots becoming north 15 to 20 knots early in the afternoon. Sunny. Waves 1 to 3 feet. .THURSDAY NIGHT...North winds 15 to 20 knots becoming northeast 10 to 15 knots in the late eveningand overnight. Partly cloudy. Waves 2 to 4 feet subsiding to 1 to 3 feet after midnight. .FRIDAY...East winds 15 to 20 knots. Partly cloudy until late afternoon becoming mostly cloudy. Waves 2 to 4 feet. See Lake Huron Open Lake Forecast for days 3 through 5. $$ LEZ444-210345- Michigan Waters of Lake Erie from Detroit River to North Cape MI- 342 PM EDT Wed May 20 2026 .TONIGHT...Northeast winds 10 to 15 knots increasing to 15 to 20 knots after midnight. Mostly cloudy in the evening becoming partly cloudy. Waves 1 to 3 feet. .THURSDAY...Northeast winds 15 to 20 knots. Mostly sunny. Waves 2 to 4 feet. .THURSDAY NIGHT...East winds 15 to 20 knots. Mostly clear. Waves 2 to 4 feet. .FRIDAY...East winds 15 to 20 knots increasing to 20 to 25 knots with gusts to 30 knots early in the afternoon. Partly cloudy until late afternoon, then mostly cloudy with a chance of showers early in the afternoon. Waves 3 to 5 feet. Waves occasionally around 7 feet. A Small Craft Advisory may be needed. See Lake Erie Open Lake Forecast for days 3 through 5. The water temperature at Belle Isle is missing. $$ DRK You can obtain your latest National Weather Service forecasts online a www.weather.gov/greatlakes  959 FZUS53 KIWX 201947 NSHIWX Nearshore Marine Forecast National Weather Service Northern Indiana 347 PM EDT Wed May 20 2026 For waters within five nautical miles of shore on Lake Michigan LMZ046-210215- Michigan City IN to New Buffalo MI- 347 PM EDT Wed May 20 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 2 AM EDT THURSDAY... .TONIGHT...North winds 15 to 20 knots becoming northeast 10 to 15 knots. Partly cloudy. Waves 3 to 5 feet subsiding to 2 to 4 feet. .THURSDAY...East winds 10 to 15 knots becoming north. Mostly sunny. Waves 1 to 3 feet. .THURSDAY NIGHT...Northeast winds 5 to 15 knots becoming east. Partly cloudy in the evening, then becoming mostly cloudy. Waves 2 to 3 feet. .FRIDAY...East winds 10 to 15 knots. A chance of showers in the afternoon. Waves 1 to 2 feet. The water temperature at St. Joseph is 54 degrees and at Michigan City is 55 degrees. $$ LMZ043-210215- New Buffalo MI to St Joseph MI- 347 PM EDT Wed May 20 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 2 AM EDT THURSDAY... .TONIGHT...North winds 15 to 20 knots becoming northeast 10 to 15 knots. Partly cloudy. Waves 3 to 5 feet subsiding to 2 to 4 feet. .THURSDAY...East winds 10 to 15 knots becoming north. Mostly sunny. Waves 1 to 3 feet. .THURSDAY NIGHT...Northeast winds 5 to 15 knots becoming east. Partly cloudy in the evening, then becoming mostly cloudy. Waves 1 to 2 feet. .FRIDAY...East winds 10 to 15 knots. A chance of showers in the afternoon. Waves 1 to 2 feet. The water temperature at St. Joseph is 54 degrees and at Michigan City is 55 degrees. $$  197 FZUS51 KCLE 201954 NSHCLE Nearshore Marine Forecast National Weather Service Cleveland OH 354 PM EDT Wed May 20 2026 For waters within five nautical miles of shore Waves are the significant wave height - the average of the highest 1/3 of the wave spectrum. Occasional wave height is the average of the highest 1/10 of the wave spectrum. LEZ142>145-210215- Maumee Bay to Reno Beach OH-Reno Beach to The Islands OH- The Islands to Vermilion OH-Vermilion to Avon Point OH- 354 PM EDT Wed May 20 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM THURSDAY MORNING THROUGH FRIDAY EVENING... .TONIGHT...Northeast winds 10 to 15 knots increasing to 15 to 20 knots. Mostly cloudy this evening, then becoming partly cloudy. Waves 1 to 3 feet building to 2 to 4 feet. .THURSDAY...Northeast winds 15 to 20 knots. Mostly sunny. Waves 2 to 4 feet building to 3 to 6 feet. Waves occasionally around 7 feet. .THURSDAY NIGHT...Northeast winds 15 to 20 knots becoming east. Mostly clear. Waves 3 to 6 feet. Waves occasionally around 7 feet. .FRIDAY...East winds 15 to 20 knots. A chance of showers in the afternoon. Waves 3 to 5 feet. Waves occasionally around 6 feet. See Lake Erie open lakes forecast for Saturday through Monday. The water temperature off Toledo is 60 degrees, off Cleveland 55 degrees, and off Erie 58 degrees. $$ LEZ146>149-210215- Avon Point to Willowick OH-Willowick to Geneva-on-the Lake OH- Geneva-on-the-Lake to Conneaut OH-Conneaut OH to Ripley NY- 354 PM EDT Wed May 20 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM THURSDAY MORNING THROUGH LATE THURSDAY NIGHT... .TONIGHT...North winds 10 to 15 knots becoming northeast 15 to 20 knots. Mostly cloudy. Waves 1 to 3 feet building to 2 to 4 feet. .THURSDAY...Northeast winds 15 to 20 knots. Mostly sunny. Waves 2 to 4 feet building to 3 to 6 feet. Waves occasionally around 7 feet. .THURSDAY NIGHT...Northeast winds 15 to 20 knots becoming east 10 to 15 knots. Mostly clear. Waves 3 to 6 feet subsiding to 2 to 4 feet. Waves occasionally around 7 feet. .FRIDAY...East winds 10 to 15 knots increasing to 15 to 20 knots. A chance of showers in the afternoon. Waves 2 to 4 feet. See Lake Erie open lakes forecast for Saturday through Monday. The water temperature off Toledo is 60 degrees, off Cleveland 55 degrees, and off Erie 58 degrees. $$