FZUS53 KDLH 232200 NSHDLH Nearshore Marine Forecast National Weather Service Duluth MN 500 PM CDT Tue Jun 23 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. LSZ140-240400- Grand Portage to Grand Marais MN- 500 PM CDT Tue Jun 23 2026 .TONIGHT...Northeast wind 5 to 10 knots. Slight chance of rain showers late in the evening. Rain showers likely after midnight, then chance of rain showers and slight chance of thunderstorms late in the night. Waves 1 foot or less. .WEDNESDAY...Northeast wind 10 to 15 knots. Gusts up to 20 knots in the late morning and afternoon. Chance of rain showers and slight chance of thunderstorms through the day. Waves 1 to 2 feet. .WEDNESDAY NIGHT...Northeast wind 10 to 15 knots with gusts to around 20 knots easing to 5 knots early in the morning. Slight chance of rain showers in the evening. Waves 1 to 2 feet. .THURSDAY...North wind 5 knots becoming northeast late in the morning, then becoming south early in the afternoon becoming southwest late in the afternoon. Mostly sunny. Waves 1 foot or less. $$ LSZ141-240400- Grand Marais to Taconite Harbor MN- 500 PM CDT Tue Jun 23 2026 .TONIGHT...Northeast wind 5 to 10 knots. Chance of rain showers early in the evening, then slight chance of rain showers late in the evening. Chance of rain showers and slight chance of thunderstorms after midnight. Waves 1 foot or less. .WEDNESDAY...Northeast wind 10 to 15 knots. Gusts up to 20 knots in the afternoon. Rain showers likely in the morning. Slight chance of thunderstorms through the day. Chance of rain showers in the afternoon. Waves 1 to 2 feet. .WEDNESDAY NIGHT...Northeast wind 5 to 10 knots. Gusts up to 20 knots early in the evening. Slight chance of rain showers in the evening. Waves 1 to 2 feet. .THURSDAY...North wind 5 knots early in the morning becoming east, then becoming southeast early in the afternoon becoming variable 10 knots or less. Mostly sunny. Waves 1 foot or less. $$ LSZ142-240400- Taconite Harbor to Silver Bay Harbor MN- 500 PM CDT Tue Jun 23 2026 .TONIGHT...Northeast wind 5 knots. Rain showers likely in the evening, then chance of showers and thunderstorms after midnight. Waves 1 foot or less. .WEDNESDAY...Northeast wind 5 to 10 knots. Rain showers likely and chance of thunderstorms in the morning, then chance of rain showers and slight chance of thunderstorms in the afternoon. Waves 1 to 2 feet. .WEDNESDAY NIGHT...Northeast wind 5 knots until early morning becoming variable 10 knots or less. Slight chance of rain showers in the evening. Waves 1 to 2 feet. .THURSDAY...Variable winds 10 knots or less. Mostly sunny. Waves 1 foot or less. $$ LSZ143-240400- Silver Bay Harbor to Two Harbors MN- 500 PM CDT Tue Jun 23 2026 .TONIGHT...Northeast wind 5 to 10 knots. Rain showers likely and slight chance of thunderstorms in the evening, then chance of showers and thunderstorms after midnight. Waves 1 foot or less. .WEDNESDAY...Northeast wind 5 to 10 knots. Patchy fog in the morning. Chance of showers and thunderstorms through the day. Waves 1 to 2 feet. .WEDNESDAY NIGHT...Northeast wind 5 knots. Chance of rain showers and slight chance of thunderstorms in the evening. Slight chance of rain showers after midnight. Waves 1 to 2 feet. .THURSDAY...Variable winds 10 knots or less. Mostly sunny. Waves 1 foot or less. $$ LSZ144-240400- Two Harbors to Duluth MN- 500 PM CDT Tue Jun 23 2026 .TONIGHT...Northeast wind 5 to 10 knots. Rain showers likely and slight chance of thunderstorms in the evening, then chance of showers and thunderstorms after midnight. Patchy fog late in the night. Waves 1 foot or less. .WEDNESDAY...Northeast wind 5 to 10 knots. Patchy fog in the morning. Chance of rain showers and slight chance of thunderstorms in the morning, then rain showers likely and chance of thunderstorms in the afternoon. Waves 1 foot or less. .WEDNESDAY NIGHT...Northeast wind 5 to 10 knots. Chance of showers and thunderstorms in the evening. Waves 1 to 2 feet. .THURSDAY...Northeast wind 5 knots. Mostly sunny. Waves 1 foot or less. $$ LSZ145-240400- Duluth MN to Port Wing WI- 500 PM CDT Tue Jun 23 2026 .TONIGHT...Northeast wind 5 to 10 knots. Rain showers likely in the evening. Slight chance of thunderstorms through the night. Chance of rain showers after midnight. Patchy fog late in the night. Waves 1 foot or less. .WEDNESDAY...Northeast wind 5 to 10 knots. Patchy fog in the morning. Slight chance of thunderstorms in the morning. Chance of rain showers through the day. Chance of thunderstorms in the afternoon. Waves 1 foot or less. .WEDNESDAY NIGHT...Northeast wind 5 to 10 knots. Chance of showers and thunderstorms in the evening. Waves 1 to 2 feet. .THURSDAY...Northeast wind 5 knots. Mostly cloudy in the morning then clearing. Waves 1 foot or less. $$ LSZ146-240400- Port Wing to Sand Island WI- 500 PM CDT Tue Jun 23 2026 .TONIGHT...Northeast wind 5 to 10 knots. Rain showers likely and slight chance of thunderstorms in the evening, then chance of thunderstorms and slight chance of rain showers after midnight. Waves 1 foot or less. .WEDNESDAY...Northeast wind 5 to 10 knots. Patchy fog in the morning. Chance of showers and thunderstorms through the day. Waves 1 to 2 feet. .WEDNESDAY NIGHT...Northeast wind 5 to 10 knots. Chance of rain showers in the evening. Waves 1 to 2 feet. .THURSDAY...Variable winds 10 knots or less becoming northeast 5 knots early in the afternoon, then becoming variable 10 knots or less late in the afternoon. Mostly cloudy in the morning then clearing. Waves 1 foot or less. $$ LSZ147-240400- Sand Island to Bayfield WI- 500 PM CDT Tue Jun 23 2026 .TONIGHT...East wind 5 knots. Rain showers likely in the evening, then chance of showers and thunderstorms after midnight. Waves 1 foot or less. .WEDNESDAY...Northeast wind 5 knots. Chance of thunderstorms in the morning. Chance of rain showers through the day. Slight chance of thunderstorms in the afternoon. Waves 1 to 2 feet. .WEDNESDAY NIGHT...Northeast wind 5 knots. Slight chance of rain showers in the evening. Waves 1 to 2 feet. .THURSDAY...Northeast wind 5 knots early in the morning becoming variable 10 knots or less. Mostly cloudy in the morning then becoming mostly sunny. Waves 1 foot or less. $$ LSZ150-240400- Outer Apostle Islands Beyond 5 NM from Mainland- 500 PM CDT Tue Jun 23 2026 .TONIGHT...East wind 5 to 10 knots. Rain showers likely in the evening, then chance of showers and thunderstorms after midnight. Waves 1 foot or less. .WEDNESDAY...Northeast wind 5 to 10 knots. Chance of showers and thunderstorms in the morning, then slight chance of showers and thunderstorms in the afternoon. Waves 1 to 2 feet. .WEDNESDAY NIGHT...Northeast wind 5 to 10 knots. Slight chance of rain showers in the evening. Waves 1 to 3 feet. .THURSDAY...Northeast wind 5 knots. Mostly cloudy in the morning then becoming mostly sunny. Waves 1 foot or less. $$ LSZ121-240400- Chequamegon Bay-Bayfield to Oak Point WI- 500 PM CDT Tue Jun 23 2026 .TONIGHT...Northeast wind 5 knots. Rain showers likely in the evening, then chance of showers and thunderstorms after midnight. Waves 1 foot or less. .WEDNESDAY...Northeast wind 5 to 10 knots. Chance of showers and thunderstorms. Waves 1 foot or less. .WEDNESDAY NIGHT...North wind 5 knots. Slight chance of showers and thunderstorms in the evening. Waves 1 foot or less. .THURSDAY...Northeast wind 5 knots. Mostly cloudy in the morning then clearing. Waves 1 foot or less. $$ LSZ148-240400- Oak Point to Saxon Harbor WI- 500 PM CDT Tue Jun 23 2026 .TONIGHT...East wind 5 to 10 knots. Rain showers likely in the evening, then chance of showers and thunderstorms after midnight. Waves 1 to 2 feet. .WEDNESDAY...Northeast wind 5 to 10 knots. Chance of showers and thunderstorms. Waves 1 to 2 feet. .WEDNESDAY NIGHT...North wind 5 knots. Chance of thunderstorms and slight chance of rain showers in the evening. Waves 1 to 2 feet. .THURSDAY...Northeast wind 5 knots. Mostly cloudy in the morning then becoming mostly sunny. Waves 1 foot or less. $$ Graphical marine forecasts are available online at: weather.gov/greatlakes WFO DLH