FZUS53 KDLH 212200 NSHDLH Nearshore Marine Forecast National Weather Service Duluth MN 500 PM CDT Sun Jun 21 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. LSZ140-220400- Grand Portage to Grand Marais MN- 500 PM CDT Sun Jun 21 2026 .TONIGHT...Northeast wind 5 to 10 knots becoming north late in the night. Patchy fog late in the night. Waves 1 foot or less. .MONDAY...North wind 5 knots becoming east late in the morning, then becoming southwest in the afternoon. Mostly sunny. Waves 1 foot or less. .MONDAY NIGHT...West wind 5 to 10 knots becoming northwest early in the morning. Partly cloudy. Waves 1 foot or less. .TUESDAY...West wind 5 knots becoming south in the late morning and early afternoon, then becoming southeast late in the afternoon. Partly sunny. Waves 1 foot or less. $$ LSZ141-220400- Grand Marais to Taconite Harbor MN- 500 PM CDT Sun Jun 21 2026 .TONIGHT...East wind 5 knots early in the evening becoming variable 10 knots or less, then becoming north 5 knots late in the night. Patchy fog late in the night. Waves 1 foot or less. .MONDAY...Northeast wind 5 knots becoming southeast late in the morning, then becoming southwest in the afternoon. Mostly sunny. Waves 1 foot or less. .MONDAY NIGHT...Southwest wind 5 knots early in the evening becoming variable 10 knots or less. Partly cloudy in the evening then becoming mostly cloudy. Waves 1 foot or less. .TUESDAY...Variable winds 10 knots or less becoming southeast 5 knots late in the morning, then becoming variable 10 knots or less in the afternoon. Slight chance of rain showers in the afternoon. Waves 1 foot or less. $$ LSZ142-220400- Taconite Harbor to Silver Bay Harbor MN- 500 PM CDT Sun Jun 21 2026 .TONIGHT...East wind 5 knots early in the evening becoming variable 10 knots or less. Areas of fog late in the night. Waves 1 foot or less. .MONDAY...Variable winds 10 knots or less. Mostly sunny. Waves 1 foot or less. .MONDAY NIGHT...Variable winds 10 knots or less. Partly cloudy in the evening then becoming mostly cloudy. Waves 1 foot or less. .TUESDAY...Variable winds 10 knots or less becoming northeast 5 knots in the afternoon. Chance of rain showers in the afternoon. Waves 1 foot or less. $$ LSZ143-220400- Silver Bay Harbor to Two Harbors MN- 500 PM CDT Sun Jun 21 2026 .TONIGHT...Northeast wind 5 knots. Partly cloudy. Waves 1 foot or less. .MONDAY...Variable winds 10 knots or less becoming east 5 knots late in the morning, then becoming variable 10 knots or less in the afternoon. Mostly sunny. Waves 1 foot or less. .MONDAY NIGHT...Variable winds 10 knots or less. Partly cloudy in the evening then becoming mostly cloudy. Waves 1 foot or less. .TUESDAY...Variable winds 10 knots or less becoming northeast 5 to 10 knots in the late morning and afternoon. Chance of rain showers in the afternoon. Waves 1 foot or less. $$ LSZ144-220400- Two Harbors to Duluth MN- 500 PM CDT Sun Jun 21 2026 .TONIGHT...Northeast wind 5 knots. Partly cloudy. Waves 1 foot or less. .MONDAY...East wind 5 knots. Mostly sunny. Waves 1 foot or less. .MONDAY NIGHT...Northeast wind 5 knots in the evening becoming variable 10 knots or less. Partly cloudy in the evening then becoming mostly cloudy. Waves 1 foot or less. .TUESDAY...Northeast wind 5 to 10 knots. Gusts up to 20 knots late in the afternoon. Chance of rain showers in the afternoon. Waves 1 foot or less. $$ LSZ145-220400- Duluth MN to Port Wing WI- 500 PM CDT Sun Jun 21 2026 .TONIGHT...Northeast wind 5 knots. Partly cloudy. Waves 1 foot or less. .MONDAY...Northeast wind 5 knots. Mostly sunny. Waves 1 foot or less. .MONDAY NIGHT...Northeast wind 5 knots until early morning becoming variable 10 knots or less. Partly cloudy in the evening then becoming mostly cloudy. Waves 1 foot or less. .TUESDAY...Northeast wind 5 to 10 knots. Gusts up to 20 knots late in the afternoon. Chance of rain showers in the afternoon. Waves 1 foot or less. $$ LSZ146-220400- Port Wing to Sand Island WI- 500 PM CDT Sun Jun 21 2026 .TONIGHT...Northeast wind 5 knots. Patchy fog late in the night. Waves 1 foot or less. .MONDAY...Variable winds 10 knots or less becoming northeast 5 knots in the late morning and afternoon. Mostly sunny. Waves 1 foot or less. .MONDAY NIGHT...East wind 5 knots early in the evening becoming variable 10 knots or less. Partly cloudy in the evening then becoming mostly cloudy. Waves 1 foot or less. .TUESDAY...Variable winds 10 knots or less becoming northeast 5 to 10 knots in the late morning and afternoon. Chance of rain showers in the afternoon. Waves 1 foot or less. $$ LSZ147-220400- Sand Island to Bayfield WI- 500 PM CDT Sun Jun 21 2026 .TONIGHT...East wind 5 knots early in the evening becoming variable 10 knots or less. Partly cloudy. Waves 1 foot or less. .MONDAY...Variable winds 10 knots or less becoming east 5 knots in the late morning and afternoon. Mostly sunny. Waves 1 foot or less. .MONDAY NIGHT...Variable winds 10 knots or less. Partly cloudy in the evening then becoming mostly cloudy. Waves 1 foot or less. .TUESDAY...Variable winds 10 knots or less becoming northeast 5 knots in the afternoon. Chance of rain showers in the afternoon. Waves 1 foot or less. $$ LSZ150-220400- Outer Apostle Islands Beyond 5 NM from Mainland- 500 PM CDT Sun Jun 21 2026 .TONIGHT...Northeast wind 5 knots. Patchy fog after midnight. Waves 1 foot or less. .MONDAY...Variable winds 10 knots or less becoming east 5 knots in the afternoon. Patchy fog in the morning. Waves 1 foot or less. .MONDAY NIGHT...Variable winds 10 knots or less. Mostly cloudy. Waves 1 foot or less. .TUESDAY...Variable winds 10 knots or less becoming northeast 5 knots in the late morning and afternoon. Chance of rain showers in the afternoon. Waves 1 foot or less. $$ LSZ121-220400- Chequamegon Bay-Bayfield to Oak Point WI- 500 PM CDT Sun Jun 21 2026 .TONIGHT...Northeast wind 5 knots in the evening becoming variable 10 knots or less. Patchy fog late in the night. Waves 1 foot or less. .MONDAY...Variable winds 10 knots or less becoming northeast 5 knots in the late morning and afternoon. Mostly sunny. Waves 1 foot or less. .MONDAY NIGHT...East wind 5 knots early in the evening becoming variable 10 knots or less. Partly cloudy in the evening then becoming mostly cloudy. Waves 1 foot or less. .TUESDAY...Variable winds 10 knots or less becoming east 5 to 10 knots in the late morning and early afternoon, then becoming northeast late in the afternoon. Chance of rain showers in the afternoon. Waves 1 foot or less. $$ LSZ148-220400- Oak Point to Saxon Harbor WI- 500 PM CDT Sun Jun 21 2026 .TONIGHT...Northeast wind 5 knots until early morning becoming variable 10 knots or less. Patchy fog late in the night. Waves 1 foot or less. .MONDAY...Northeast wind 5 knots becoming east late in the afternoon. Patchy fog in the morning. Waves 1 foot or less. .MONDAY NIGHT...East wind 5 knots in the evening becoming variable 10 knots or less. Partly cloudy in the evening then becoming mostly cloudy. Waves 1 foot or less. .TUESDAY...Variable winds 10 knots or less becoming east 5 knots in the late morning and early afternoon, then becoming northeast late in the afternoon. Chance of rain showers in the afternoon. Waves 1 foot or less. $$ Graphical marine forecasts are available online at: weather.gov/greatlakes WFO DLH