FZUS53 KDLH 221335 NSHDLH Nearshore Marine Forecast National Weather Service Duluth MN 834 AM CDT Wed Apr 22 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. LSZ140-222200- Grand Portage to Grand Marais MN- 834 AM CDT Wed Apr 22 2026 .REST OF TODAY...East wind 10 to 15 knots. Sunny. Waves 1 foot or less. .TONIGHT...Northeast wind 15 to 20 knots. Gusts up to 25 knots early in the morning. Slight chance of showers and thunderstorms after midnight. Waves 1 to 3 feet building to 2 to 4 feet after midnight. .THURSDAY...Northeast wind 15 to 20 knots with gusts to around 25 knots. Slight chance of rain showers in the afternoon. Waves 3 to 5 feet. Waves occasionally to 7 feet. A small craft advisory may be needed. .THURSDAY NIGHT...Northeast wind 15 to 20 knots with gusts to around 25 knots. Rain showers and chance of thunderstorms. Waves 4 to 7 feet. Waves occasionally to 9 feet. A small craft advisory may be needed. $$ LSZ141-222200- Grand Marais to Taconite Harbor MN- 834 AM CDT Wed Apr 22 2026 .REST OF TODAY...East wind 10 to 15 knots. Sunny. Waves 1 to 2 feet. .TONIGHT...Northeast wind 15 to 20 knots. Gusts up to 25 knots early in the morning. Slight chance of showers and thunderstorms. Waves 1 to 2 feet building to 2 to 4 feet in the late evening and overnight. A small craft advisory may be needed. .THURSDAY...Northeast wind 15 to 20 knots with gusts to around 25 knots. Chance of rain showers in the afternoon. Waves 3 to 5 feet. A small craft advisory may be needed. .THURSDAY NIGHT...East wind 15 to 20 knots. Gusts up to 25 knots decreasing to 20 knots in the late evening and overnight. Rain showers and chance of thunderstorms. Waves 4 to 6 feet. Waves occasionally to 7 feet. A small craft advisory may be needed. $$ LSZ142-222200- Taconite Harbor to Silver Bay Harbor MN- 834 AM CDT Wed Apr 22 2026 .REST OF TODAY...Northeast wind 10 to 15 knots. Sunny. Waves 1 foot or less. .TONIGHT...Northeast wind 10 to 15 knots with gusts to around 20 knots. Slight chance of showers and thunderstorms. Waves 1 to 2 feet building to 2 to 4 feet in the late evening and overnight. A small craft advisory may be needed. .THURSDAY...Northeast 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. Chance of rain showers and slight chance of thunderstorms in the afternoon. Waves 3 to 5 feet. A small craft advisory may be needed. .THURSDAY NIGHT...Northeast wind 10 to 15 knots. Gusts up to 20 knots early in the evening. Rain showers and chance of thunderstorms. Waves 3 to 5 feet. A small craft advisory may be needed. $$ LSZ143-222200- Silver Bay Harbor to Two Harbors MN- 834 AM CDT Wed Apr 22 2026 .REST OF TODAY...Northeast wind 15 to 20 knots. Sunny. Waves 1 to 2 feet. .TONIGHT...Northeast wind 15 to 20 knots. Partly cloudy in the evening then becoming mostly cloudy. Waves 1 to 3 feet building to 2 to 4 feet after midnight. .THURSDAY...Northeast wind 15 to 20 knots. Gusts up to 20 knots increasing to 25 knots early in the afternoon. Chance of rain showers and slight chance of thunderstorms in the afternoon. Waves 2 to 4 feet. .THURSDAY NIGHT...Northeast wind 10 to 15 knots. Gusts up to 20 knots early in the evening. Rain showers and chance of thunderstorms. Waves 2 to 4 feet. A small craft advisory may be needed. $$ LSZ144-222200- Two Harbors to Duluth MN- 834 AM CDT Wed Apr 22 2026 .REST OF TODAY...Northeast wind 15 to 20 knots. Sunny. Waves 1 to 3 feet. .TONIGHT...Northeast wind 15 to 20 knots. Partly cloudy in the evening then becoming mostly cloudy. Waves 2 to 4 feet. .THURSDAY...Northeast wind 15 to 20 knots. Gusts up to 20 knots increasing to 25 knots early in the afternoon, then decreasing to 20 knots late in the afternoon. Chance of rain showers and slight chance of thunderstorms in the afternoon. Waves 1 to 3 feet. .THURSDAY NIGHT...Northeast wind 10 to 15 knots with gusts to around 20 knots becoming north 5 to 10 knots early in the morning. Rain showers and chance of thunderstorms. Waves 1 to 3 feet. $$ LSZ145-222200- Duluth MN to Port Wing WI- 834 AM CDT Wed Apr 22 2026 .REST OF TODAY...Northeast wind 15 to 20 knots. Sunny. Waves 1 to 2 feet building to 1 to 3 feet late. .TONIGHT...Northeast wind 15 to 20 knots. Partly cloudy in the evening then becoming mostly cloudy. Waves 2 to 4 feet. .THURSDAY...Northeast wind 10 to 15 knots. Gusts up to 20 knots in the late morning and afternoon. Chance of rain showers and slight chance of thunderstorms in the afternoon. Waves 1 to 3 feet. .THURSDAY NIGHT...Northeast wind 10 to 15 knots with gusts to around 20 knots becoming north 5 to 10 knots early in the morning. Rain showers and chance of thunderstorms. Waves 1 to 3 feet. $$ LSZ146-222200- Port Wing to Sand Island WI- 834 AM CDT Wed Apr 22 2026 .REST OF TODAY...Northeast wind 15 to 20 knots. Sunny. Waves 1 to 3 feet. .TONIGHT...Northeast wind 15 to 20 knots. Partly cloudy in the evening then becoming mostly cloudy. Waves 2 to 4 feet. .THURSDAY...Northeast wind 10 to 15 knots. Gusts up to 20 knots in the afternoon. Chance of rain showers and slight chance of thunderstorms in the afternoon. Waves 1 to 3 feet. .THURSDAY NIGHT...Northeast wind 10 to 15 knots. Rain showers and chance of thunderstorms. Waves 2 to 4 feet. $$ LSZ147-222200- Sand Island to Bayfield WI- 834 AM CDT Wed Apr 22 2026 .REST OF TODAY...East wind 10 to 15 knots. Sunny. Waves 1 to 2 feet. .TONIGHT...East wind 5 to 10 knots becoming southeast early in the morning. Partly cloudy in the evening then becoming mostly cloudy. Waves 1 to 3 feet. .THURSDAY...Southeast wind 5 to 10 knots. Chance of rain showers and slight chance of thunderstorms in the afternoon. Waves 1 to 3 feet. .THURSDAY NIGHT...East wind 5 to 10 knots becoming northeast early in the morning. Rain showers and chance of thunderstorms. Waves 2 to 4 feet. $$ LSZ150-222200- Outer Apostle Islands Beyond 5 NM from Mainland- 834 AM CDT Wed Apr 22 2026 .REST OF TODAY...East wind 5 to 10 knots becoming northeast 10 to 15 knots with gusts to around 20 knots in the afternoon. Sunny. Waves 1 to 2 feet. .TONIGHT...East wind 10 to 15 knots with gusts to around 20 knots becoming southeast early in the morning. Partly cloudy in the evening then becoming mostly cloudy. Waves 2 to 4 feet. .THURSDAY...Southeast wind 10 to 15 knots. Gusts up to 20 knots in the afternoon. Slight chance of rain showers in the afternoon. Waves 1 to 3 feet building to 2 to 4 feet in the afternoon. A small craft advisory may be needed. .THURSDAY NIGHT...East wind 10 to 15 knots. Rain showers and chance of thunderstorms. Waves 3 to 5 feet. A small craft advisory may be needed. $$ LSZ121-222200- Chequamegon Bay-Bayfield to Oak Point WI- 834 AM CDT Wed Apr 22 2026 .REST OF TODAY...Variable winds 10 knots or less becoming northeast 5 to 10 knots in the late morning and afternoon. Sunny. Waves 1 foot or less. .TONIGHT...Northeast wind 5 to 10 knots becoming south early in the morning. Partly cloudy in the evening then becoming mostly cloudy. Waves 1 foot or less. .THURSDAY...South wind 10 to 15 knots. Gusts up to 25 knots. Chance of rain showers and slight chance of thunderstorms in the afternoon. Waves 1 foot or less. .THURSDAY NIGHT...South wind 5 to 10 knots. Gusts up to 20 knots early in the evening. Rain showers and chance of thunderstorms. Waves 1 foot or less. $$ LSZ148-222200- Oak Point to Saxon Harbor WI- 834 AM CDT Wed Apr 22 2026 .REST OF TODAY...Variable winds 10 knots or less becoming northeast 5 to 10 knots in the late morning and afternoon. Sunny. Waves 1 foot or less. .TONIGHT...Northeast wind 5 to 10 knots becoming southeast with gusts to around 20 knots after midnight. Partly cloudy in the evening then becoming mostly cloudy. Waves 1 to 2 feet. .THURSDAY...South wind 10 to 15 knots with gusts to around 20 knots. Slight chance of showers and thunderstorms in the afternoon. Waves 1 to 2 feet. .THURSDAY NIGHT...Southeast wind 5 to 10 knots. Gusts up to 20 knots early in the evening. Rain showers and chance of thunderstorms. Waves 1 to 2 feet. $$ Graphical marine forecasts are available online at: weather.gov/greatlakes WFO DLH