FZUS53 KDLH 210242 NSHDLH Nearshore Marine Forecast National Weather Service Duluth MN 942 PM CDT Fri Mar 20 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. LSZ140-211000- Grand Portage to Grand Marais MN- 942 PM CDT Fri Mar 20 2026 .REST OF TONIGHT...East wind 5 to 10 knots. Chance of snow and slight chance of light freezing rain toward daybreak. Waves 1 foot or less. .SATURDAY...East wind 10 to 15 knots. Gusts up to 20 knots late in the afternoon. Patchy fog through the day. Slight chance of rain in the morning. Chance of snow through the day. Chance of rain in the afternoon. Waves 1 to 2 feet. .SATURDAY NIGHT...Northeast wind 15 to 20 knots. Gusts up to 25 knots increasing to 30 knots early in the morning. Chance of rain, light sleet and slight chance of snow in the evening. Slight chance of light freezing rain through the night. Waves 1 to 3 feet. .SUNDAY...Northeast wind 15 to 20 knots. Gusts up to 25 knots until late afternoon. Partly sunny. Waves 1 to 3 feet. Note...Wave height forecasts are for ice free areas. $$ LSZ141-211000- Grand Marais to Taconite Harbor MN- 942 PM CDT Fri Mar 20 2026 .REST OF TONIGHT...Northeast wind 5 knots becoming east toward daybreak. Slight chance of rain toward daybreak. Waves 1 foot or less. .SATURDAY...East wind 5 to 10 knots. Patchy fog through the day. Chance of snow in the morning. Chance of rain through the day. Slight chance of snow in the afternoon. Waves 1 to 2 feet. .SATURDAY NIGHT...Northeast wind 10 to 15 knots. Gusts up to 20 knots in the late evening and overnight. Slight chance of snow in the evening. Chance of rain through the night. Waves 1 to 2 feet. .SUNDAY...Northeast wind 10 to 15 knots with gusts to around 20 knots becoming east 5 to 10 knots late in the afternoon. Partly sunny. Waves 1 to 2 feet. Note...Wave height forecasts are for ice free areas. $$ LSZ142-211000- Taconite Harbor to Silver Bay Harbor MN- 942 PM CDT Fri Mar 20 2026 .REST OF TONIGHT...Northeast wind 5 knots. Slight chance of rain toward daybreak. Waves 1 foot or less. .SATURDAY...Northeast wind 5 to 10 knots. Patchy fog through the day. Chance of snow and light freezing rain in the morning. Chance of rain through the day. Slight chance of snow in the afternoon. Waves 1 to 2 feet. .SATURDAY NIGHT...Northeast wind 5 to 10 knots. Gusts up to 20 knots early in the morning. Chance of rain and slight chance of snow through the night. Waves 1 to 2 feet. .SUNDAY...Northeast wind 5 to 10 knots with gusts to around 20 knots becoming east late in the afternoon. Mostly cloudy. Waves 1 to 3 feet. Note...Wave height forecasts are for ice free areas. $$ LSZ143-211000- Silver Bay Harbor to Two Harbors MN- 942 PM CDT Fri Mar 20 2026 .REST OF TONIGHT...Northeast wind 5 knots. Slight chance of rain toward daybreak. Waves 1 foot or less. .SATURDAY...Northeast wind 5 to 10 knots. Patchy fog through the day. Chance of rain, light freezing rain and slight chance of snow in the morning. Slight chance of rain in the afternoon. Waves 1 foot or less. .SATURDAY NIGHT...Northeast wind 10 to 15 knots. Gusts up to 20 knots after midnight. Chance of rain and slight chance of snow through the night. Slight chance of light freezing rain after midnight. Waves 1 to 3 feet. .SUNDAY...Northeast wind 10 to 15 knots with gusts to around 20 knots becoming east 5 to 10 knots late in the afternoon. Mostly cloudy. Waves 1 to 3 feet. Note...Wave height forecasts are for ice free areas. $$ LSZ144-211000- Two Harbors to Duluth MN- 942 PM CDT Fri Mar 20 2026 .REST OF TONIGHT...Northeast wind 5 to 10 knots. Partly cloudy late in the evening then becoming mostly cloudy. Waves 1 foot or less. .SATURDAY...Northeast wind 5 to 10 knots. Slight chance of rain in the morning. Waves 1 foot or less. .SATURDAY NIGHT...Northeast wind 10 to 15 knots. Gusts up to 20 knots after midnight. Chance of rain through the night. Slight chance of snow after midnight. Waves 1 to 3 feet. .SUNDAY...Northeast wind 10 to 15 knots. Gusts up to 20 knots in the morning. Cloudy in the morning then becoming partly sunny. Waves 1 to 3 feet. Note...Wave height forecasts are for ice free areas. $$ LSZ145-211000- Duluth MN to Port Wing WI- 942 PM CDT Fri Mar 20 2026 .REST OF TONIGHT...East wind 5 knots. Partly cloudy late in the evening then becoming mostly cloudy. Waves 1 foot or less. .SATURDAY...Northeast wind 5 to 10 knots. Slight chance of rain in the morning. Patchy fog through the day. Waves 1 foot or less. .SATURDAY NIGHT...North wind 5 to 10 knots becoming northeast 10 to 15 knots with gusts to around 20 knots after midnight. Chance of rain through the night. Chance of snow and light freezing rain after midnight. Waves 1 to 2 feet building to 1 to 3 feet early in the morning. .SUNDAY...Northeast wind 10 to 15 knots. Gusts up to 20 knots in the morning. Cloudy in the morning then becoming partly sunny. Waves 2 to 4 feet. Note...Wave height forecasts are for ice free areas. $$ LSZ146-211000- Port Wing to Sand Island WI- 942 PM CDT Fri Mar 20 2026 .REST OF TONIGHT...East wind 5 knots. Slight chance of rain toward daybreak. Waves 1 foot or less. .SATURDAY...East wind 5 knots becoming northeast late in the afternoon. Patchy fog through the day. Chance of rain in the morning. Slight chance of rain in the afternoon. Waves 1 foot or less. .SATURDAY NIGHT...Northeast wind 10 to 15 knots. Gusts up to 20 knots after midnight. Slight chance of snow in the evening. Chance of rain through the night. Chance of snow and light freezing rain after midnight. Waves 1 to 3 feet building to 2 to 4 feet early in the morning. .SUNDAY...Northeast wind 10 to 15 knots. Gusts up to 20 knots in the morning. Cloudy in the morning then becoming partly sunny. Waves 2 to 4 feet. A small craft advisory may be needed. Note...Wave height forecasts are for ice free areas. $$ LSZ147-211000- Sand Island to Bayfield WI- 942 PM CDT Fri Mar 20 2026 .REST OF TONIGHT...East wind 5 knots. Slight chance of rain toward daybreak. Waves 1 foot or less. .SATURDAY...East wind 5 knots becoming northeast late in the afternoon. Patchy fog through the day. Chance of rain in the morning. Slight chance of rain in the afternoon. Waves 1 foot or less. .SATURDAY NIGHT...North wind 10 to 15 knots with gusts to around 20 knots becoming northeast with gusts to around 20 knots early in the morning. Chance of rain through the night. Slight chance of light freezing rain and snow after midnight. Waves 1 to 2 feet building to 2 to 4 feet after midnight. A small craft advisory may be needed. .SUNDAY...Northeast wind 10 to 15 knots. Gusts up to 20 knots in the morning. Mostly cloudy. Waves 3 to 5 feet. A small craft advisory may be needed. Note...Wave height forecasts are for ice free areas. $$ LSZ150-211000- Outer Apostle Islands Beyond 5 NM from Mainland- 942 PM CDT Fri Mar 20 2026 .REST OF TONIGHT...East wind 5 knots. Slight chance of rain toward daybreak. Waves 1 foot or less. .SATURDAY...East wind 5 to 10 knots becoming northeast late in the afternoon. Patchy fog through the day. Chance of rain in the morning. Slight chance of rain in the afternoon. Waves 1 to 2 feet. .SATURDAY NIGHT...Northeast wind 15 to 20 knots. Gusts up to 25 knots. Chance of rain and slight chance of snow through the night. Slight chance of light freezing rain after midnight. Waves 1 to 3 feet building to 4 to 6 feet in the late evening and overnight. Waves occasionally to 8 feet. A small craft advisory may be needed. .SUNDAY...Northeast wind 15 to 20 knots. Gusts up to 25 knots. Cloudy in the morning then becoming partly sunny. Waves 4 to 7 feet. Waves occasionally to 9 feet. A small craft advisory may be needed. Note...Wave height forecasts are for ice free areas. $$ LSZ148-211000- Oak Point to Saxon Harbor WI- 942 PM CDT Fri Mar 20 2026 .REST OF TONIGHT...Northeast wind 5 knots becoming southeast after midnight. Slight chance of rain toward daybreak. Waves 1 foot or less. .SATURDAY...Southeast wind 5 knots becoming south early in the afternoon, then becoming west late in the afternoon. Patchy fog in the morning. Chance of rain in the morning, then slight chance of rain in the afternoon. Waves 1 to 3 feet. .SATURDAY NIGHT...North wind 10 to 15 knots with gusts to around 20 knots becoming northeast 15 to 20 knots early in the morning. Chance of rain through the night. Chance of snow and light freezing rain after midnight. Waves 4 to 6 feet. Waves occasionally to 8 feet. A small craft advisory may be needed. .SUNDAY...Northeast wind 15 to 20 knots. Gusts up to 25 knots. Mostly cloudy. Waves 4 to 7 feet. Waves occasionally to 9 feet. A small craft advisory may be needed. Note...Wave height forecasts are for ice free areas. $$ Graphical marine forecasts are available online at: weather.gov/greatlakes WFO DLH