FZUS53 KDLH 150518 NSHDLH Nearshore Marine Forecast National Weather Service Duluth MN 1218 AM CDT Mon Jun 15 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. LSZ140-151600- Grand Portage to Grand Marais MN- 1218 AM CDT Mon Jun 15 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM 7 AM CDT THIS MORNING THROUGH THIS EVENING... .TODAY...Southwest wind 15 to 20 knots. Gusts up to 20 knots increasing to 25 knots late in the morning, then increasing to 30 knots early in the afternoon decreasing to 25 knots late in the afternoon. Chance of showers and thunderstorms in the afternoon. Waves 1 to 2 feet building to 3 to 5 feet in the late morning and afternoon. .TONIGHT...Southwest wind 10 to 15 knots with gusts to around 20 knots becoming north 5 to 10 knots early in the morning. Chance of showers and thunderstorms in the evening. Waves 2 to 4 feet subsiding to 1 to 2 feet in the late evening and overnight. .TUESDAY...Northeast wind 5 to 10 knots becoming south late in the afternoon. Partly sunny. Waves 1 foot or less. .TUESDAY NIGHT...Southwest wind 5 knots. Partly cloudy. Waves 1 foot or less. $$ LSZ141-151600- Grand Marais to Taconite Harbor MN- 1218 AM CDT Mon Jun 15 2026 .TODAY...Southwest wind 15 to 20 knots with gusts to around 25 knots. Chance of showers and thunderstorms in the afternoon. Waves 1 to 2 feet building to 1 to 3 feet in the afternoon. .TONIGHT...West wind 5 to 10 knots becoming north early in the morning. Chance of showers and thunderstorms in the evening, then slight chance of rain showers after midnight. Waves 1 to 2 feet. .TUESDAY...Northeast wind 5 knots becoming east early in the afternoon, then becoming variable 10 knots or less late in the afternoon. Slight chance of rain showers in the morning. Waves 1 foot or less. .TUESDAY NIGHT...Variable winds 10 knots or less. Partly cloudy in the evening then becoming mostly cloudy. Waves 1 foot or less. $$ LSZ142-151600- Taconite Harbor to Silver Bay Harbor MN- 1218 AM CDT Mon Jun 15 2026 .TODAY...Southwest wind 5 to 10 knots. Gusts up to 20 knots in the late morning and afternoon. Chance of showers and thunderstorms in the afternoon. Waves 1 to 2 feet. .TONIGHT...West wind 5 knots becoming north early in the morning. Chance of showers and thunderstorms in the evening, then slight chance of rain showers after midnight. Waves 1 foot or less. .TUESDAY...Variable winds 10 knots or less becoming northeast 5 knots late in the morning, then becoming variable 10 knots or less in the afternoon. Chance of rain showers in the morning, then slight chance of rain showers in the afternoon. Waves 1 foot or less. .TUESDAY NIGHT...Variable winds 10 knots or less. Partly cloudy. Waves 1 foot or less. $$ LSZ143-151600- Silver Bay Harbor to Two Harbors MN- 1218 AM CDT Mon Jun 15 2026 .TODAY...Southwest wind 10 to 15 knots. Gusts up to 20 knots in the late morning and afternoon. Slight chance of showers and thunderstorms late in the afternoon. Waves 1 to 2 feet. .TONIGHT...Southwest wind 5 to 10 knots becoming northwest early in the morning. Chance of showers and thunderstorms in the evening. Slight chance of rain showers after midnight. Waves 1 foot or less. .TUESDAY...Northeast wind 5 knots until late afternoon becoming variable 10 knots or less. Chance of rain showers in the morning, then slight chance of rain showers in the afternoon. Waves 1 foot or less. .TUESDAY NIGHT...Variable winds 10 knots or less. Partly cloudy. Waves 1 foot or less. $$ LSZ144-151600- Two Harbors to Duluth MN- 1218 AM CDT Mon Jun 15 2026 .TODAY...Southwest wind 10 to 15 knots. Gusts up to 20 knots in the late morning and afternoon. Slight chance of showers and thunderstorms late in the afternoon. Waves 1 to 2 feet. .TONIGHT...Southwest wind 5 to 10 knots with gusts to around 20 knots becoming northwest early in the morning. Chance of thunderstorms in the evening. Chance of rain showers through the night. Waves 1 foot or less. .TUESDAY...North wind 5 to 10 knots becoming northeast in the afternoon. Chance of rain showers in the morning. Slight chance of rain showers in the afternoon. Waves 1 foot or less. .TUESDAY NIGHT...Northeast wind 5 knots early in the evening becoming variable 10 knots or less. Partly cloudy. Waves 1 foot or less. $$ LSZ145-151600- Duluth MN to Port Wing WI- 1218 AM CDT Mon Jun 15 2026 .TODAY...Southwest wind 10 to 15 knots. Gusts up to 20 knots late in the morning increasing to 25 knots, then decreasing to 20 knots late in the afternoon. Chance of showers and thunderstorms late in the afternoon. Waves 1 to 2 feet. .TONIGHT...Southwest wind 10 to 15 knots with gusts to around 20 knots becoming west 5 knots after midnight. Chance of thunderstorms in the evening. Chance of rain showers through the night. Waves 1 to 2 feet. .TUESDAY...North wind 5 to 10 knots. Chance of rain showers in the morning. Slight chance of rain showers in the afternoon. Waves 1 foot or less. .TUESDAY NIGHT...Northeast wind 5 knots early in the evening becoming variable 10 knots or less, then becoming southwest 5 knots early in the morning. Partly cloudy. Waves 1 foot or less. $$ LSZ146-151600- Port Wing to Sand Island WI- 1218 AM CDT Mon Jun 15 2026 .TODAY...Southwest wind 10 to 15 knots. Gusts up to 20 knots in the late morning and afternoon. Slight chance of showers and thunderstorms late in the afternoon. Waves 1 to 2 feet. .TONIGHT...Southwest wind 5 to 10 knots. Gusts up to 20 knots early in the evening. Slight chance of thunderstorms in the evening. Chance of rain showers through the night. Waves 1 to 2 feet. .TUESDAY...North wind 5 knots becoming northeast early in the afternoon, then becoming variable 10 knots or less late in the afternoon. Chance of rain showers in the morning. Waves 1 foot or less. .TUESDAY NIGHT...Variable winds 10 knots or less. Partly cloudy. Waves 1 foot or less. $$ LSZ147-151600- Sand Island to Bayfield WI- 1218 AM CDT Mon Jun 15 2026 .TODAY...Southwest wind 5 to 10 knots with gusts to around 20 knots. Slight chance of showers and thunderstorms late in the afternoon. Waves 1 to 2 feet. .TONIGHT...Southwest wind 5 to 10 knots becoming west early in the morning. Slight chance of thunderstorms in the evening. Chance of rain showers through the night. Waves 1 to 2 feet. .TUESDAY...North wind 5 knots becoming east late in the afternoon. Chance of rain showers in the morning. Waves 1 foot or less. .TUESDAY NIGHT...Variable winds 10 knots or less. Partly cloudy. Waves 1 foot or less. $$ LSZ150-151600- Outer Apostle Islands Beyond 5 NM from Mainland- 1218 AM CDT Mon Jun 15 2026 .TODAY...Southwest wind 10 to 15 knots. Gusts up to 20 knots increasing to 25 knots early in the afternoon, then decreasing to 20 knots late in the afternoon. Slight chance of showers and thunderstorms late in the afternoon. Waves 1 to 3 feet. .TONIGHT...Southwest wind 5 to 10 knots with gusts to around 20 knots becoming west early in the morning. Chance of rain showers and slight chance of thunderstorms in the evening, then slight chance of rain showers after midnight. Waves 1 to 2 feet. .TUESDAY...Northeast wind 5 knots becoming southeast late in the afternoon. Chance of rain showers in the morning. Waves 1 foot or less. .TUESDAY NIGHT...Variable winds 10 knots or less becoming southwest 5 knots. Partly cloudy. Waves 1 foot or less. $$ LSZ121-151600- Chequamegon Bay-Bayfield to Oak Point WI- 1218 AM CDT Mon Jun 15 2026 .TODAY...Southwest wind 10 to 15 knots. Gusts up to 20 knots in the afternoon. Chance of showers and thunderstorms late in the afternoon. Waves 1 foot or less. .TONIGHT...Southwest wind 5 to 10 knots. Gusts up to 20 knots early in the evening. Chance of thunderstorms in the evening. Chance of rain showers through the night. Waves 1 foot or less. .TUESDAY...North wind 5 knots becoming northeast in the afternoon. Chance of rain showers in the morning, then slight chance of rain showers in the afternoon. Waves 1 foot or less. .TUESDAY NIGHT...East wind 5 knots early in the evening becoming variable 10 knots or less, then becoming southwest 5 knots early in the morning. Partly cloudy. Waves 1 foot or less. $$ LSZ148-151600- Oak Point to Saxon Harbor WI- 1218 AM CDT Mon Jun 15 2026 .TODAY...Southwest wind 5 to 10 knots. Gusts up to 20 knots in the afternoon. Chance of rain showers and slight chance of thunderstorms late in the afternoon. Waves 1 foot or less. .TONIGHT...Southwest wind 5 to 10 knots. Gusts up to 20 knots early in the evening. Chance of thunderstorms in the evening. Chance of rain showers through the night. Waves 1 foot or less. .TUESDAY...Northwest wind 5 knots becoming north in the late morning and afternoon. Chance of rain showers in the morning, then slight chance of rain showers in the afternoon. Waves 1 foot or less. .TUESDAY NIGHT...Northeast wind 5 knots early in the evening becoming variable 10 knots or less, then becoming south 5 knots after midnight. Partly cloudy. Waves 1 foot or less. $$ Graphical marine forecasts are available online at: weather.gov/greatlakes WFO DLH