FZUS53 KDLH 302200 NSHDLH Nearshore Marine Forecast National Weather Service Duluth MN 500 PM CDT Thu Apr 30 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. LSZ140-010400- Grand Portage to Grand Marais MN- 500 PM CDT Thu Apr 30 2026 .TONIGHT...West wind 5 knots becoming north in the late evening and overnight. Chance of sprinkles until early morning. Chance of flurries through the night. Waves 1 foot or less. .FRIDAY...Northeast wind 5 to 10 knots becoming southeast early in the afternoon, then becoming southwest late in the afternoon. Mostly sunny. Waves 1 foot or less. .FRIDAY NIGHT...Southwest wind 5 to 10 knots becoming northwest after midnight. Partly cloudy. Waves 1 foot or less. .SATURDAY...Northwest wind 5 knots becoming southwest 10 to 15 knots in the late morning and afternoon. Mostly sunny. Waves 1 to 2 feet. $$ LSZ141-010400- Grand Marais to Taconite Harbor MN- 500 PM CDT Thu Apr 30 2026 .TONIGHT...Southwest wind 5 knots becoming north in the late evening and overnight. Chance of sprinkles until early morning. Chance of flurries through the night. Waves 1 foot or less. .FRIDAY...North wind 5 knots becoming east late in the morning, then becoming south in the afternoon. Mostly sunny. Waves 1 foot or less. .FRIDAY NIGHT...Southwest wind 5 knots becoming northwest after midnight. Partly cloudy. Waves 1 foot or less. .SATURDAY...Variable winds 10 knots or less becoming southwest 5 to 10 knots in the late morning and early afternoon, then becoming south late in the afternoon. Mostly sunny. Waves 1 foot or less. $$ LSZ142-010400- Taconite Harbor to Silver Bay Harbor MN- 500 PM CDT Thu Apr 30 2026 .TONIGHT...Southwest wind 5 knots becoming north in the late evening and overnight. Chance of sprinkles and flurries in the evening. Waves 1 foot or less. .FRIDAY...North wind 5 knots becoming south late in the afternoon. Mostly sunny. Waves 1 foot or less. .FRIDAY NIGHT...South wind 5 knots becoming northwest after midnight. Mostly clear. Waves 1 foot or less. .SATURDAY...Variable winds 10 knots or less becoming southwest 5 knots in the late morning and early afternoon, then becoming south late in the afternoon. Sunny. Waves 1 foot or less. $$ LSZ143-010400- Silver Bay Harbor to Two Harbors MN- 500 PM CDT Thu Apr 30 2026 .TONIGHT...Southwest wind 5 knots becoming north in the late evening and overnight. Chance of sprinkles and flurries in the evening. Waves 1 foot or less. .FRIDAY...North wind 5 knots becoming southeast in the afternoon. Mostly sunny. Waves 1 foot or less. .FRIDAY NIGHT...East wind 5 knots becoming north in the late evening and early morning, then becoming northwest early in the morning. Mostly clear. Waves 1 foot or less. .SATURDAY...Variable winds 10 knots or less becoming south 5 knots in the late morning and afternoon. Mostly sunny. Waves 1 foot or less. $$ LSZ144-010400- Two Harbors to Duluth MN- 500 PM CDT Thu Apr 30 2026 .TONIGHT...East wind 5 knots becoming north in the late evening and overnight. Chance of sprinkles and flurries in the evening. Waves 1 foot or less. .FRIDAY...North wind 5 knots becoming east in the late morning and afternoon. Mostly sunny. Waves 1 foot or less. .FRIDAY NIGHT...Northeast wind 5 knots becoming northwest early in the morning. Mostly clear. Waves 1 foot or less. .SATURDAY...Southwest wind 5 knots. Mostly sunny. Waves 1 foot or less. $$ LSZ145-010400- Duluth MN to Port Wing WI- 500 PM CDT Thu Apr 30 2026 .TONIGHT...Northeast wind 5 knots becoming north after midnight. Chance of sprinkles and flurries in the evening. Waves 1 foot or less. .FRIDAY...Northeast wind 5 to 10 knots. Mostly sunny. Waves 1 foot or less. .FRIDAY NIGHT...Northeast wind 5 knots becoming west after midnight. Mostly clear. Waves 1 foot or less. .SATURDAY...Southwest wind 5 knots. Mostly sunny. Waves 1 foot or less. $$ LSZ146-010400- Port Wing to Sand Island WI- 500 PM CDT Thu Apr 30 2026 .TONIGHT...North wind 5 knots becoming northwest late in the evening, then becoming north after midnight. Chance of sprinkles and flurries in the evening. Waves 1 foot or less. .FRIDAY...Northeast wind 5 knots. Mostly sunny. Waves 1 foot or less. .FRIDAY NIGHT...East wind 5 knots becoming southwest after midnight. Mostly clear. Waves 1 foot or less. .SATURDAY...Southwest wind 5 knots becoming south late in the afternoon. Mostly sunny. Waves 1 foot or less. $$ LSZ147-010400- Sand Island to Bayfield WI- 500 PM CDT Thu Apr 30 2026 .TONIGHT...West wind 5 knots becoming north after midnight. Chance of sprinkles and flurries in the evening. Waves 1 foot or less. .FRIDAY...Northeast wind 5 knots becoming southeast late in the afternoon. Partly sunny in the morning then clearing. Waves 1 foot or less. .FRIDAY NIGHT...South wind 5 knots becoming southwest early in the morning. Mostly clear. Waves 1 foot or less. .SATURDAY...West wind 5 knots early in the morning becoming variable 10 knots or less, then becoming south 5 knots in the afternoon. Sunny. Waves 1 foot or less. $$ LSZ150-010400- Outer Apostle Islands Beyond 5 NM from Mainland- 500 PM CDT Thu Apr 30 2026 .TONIGHT...Northwest wind 5 knots becoming north after midnight. Chance of sprinkles and flurries in the evening. Chance of sprinkles and flurries late in the night. Waves 1 foot or less. .FRIDAY...Northeast wind 5 to 10 knots becoming southeast late in the afternoon. Partly sunny in the morning then clearing. Waves 1 foot or less. .FRIDAY NIGHT...South wind 5 knots becoming southwest early in the morning. Mostly clear. Waves 1 foot or less. .SATURDAY...Southwest wind 5 knots becoming south in the afternoon. Sunny. Waves 1 foot or less. $$ LSZ121-010400- Chequamegon Bay-Bayfield to Oak Point WI- 500 PM CDT Thu Apr 30 2026 .TONIGHT...North wind 5 knots. Chance of sprinkles and flurries in the evening. Chance of flurries late in the night. Waves 1 foot or less. .FRIDAY...North wind 5 knots becoming east in the afternoon. Partly sunny in the morning then clearing. Waves 1 foot or less. .FRIDAY NIGHT...Southeast wind 5 knots becoming southwest after midnight. Mostly clear. Waves 1 foot or less. .SATURDAY...West wind 5 knots becoming northwest early in the afternoon, then becoming southeast late in the afternoon. Sunny. Waves 1 foot or less. $$ LSZ148-010400- Oak Point to Saxon Harbor WI- 500 PM CDT Thu Apr 30 2026 .TONIGHT...North wind 5 knots. Chance of sprinkles and flurries in the evening. Chance of flurries and sprinkles late in the night. Waves 1 foot or less. .FRIDAY...North wind 5 knots becoming east in the afternoon. Partly sunny in the morning then clearing. Waves 1 foot or less. .FRIDAY NIGHT...Southeast wind 5 knots becoming southwest after midnight. Mostly clear. Waves 1 foot or less. .SATURDAY...Southwest wind 5 knots becoming northeast early in the afternoon, then becoming east late in the afternoon. Sunny. Waves 1 foot or less. $$ Graphical marine forecasts are available online at: weather.gov/greatlakes WFO DLH