FZUS53 KDLH 192253 NSHDLH Nearshore Marine Forecast National Weather Service Duluth MN 553 PM CDT Thu Mar 19 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. LSZ140-200400- Grand Portage to Grand Marais MN- 553 PM CDT Thu Mar 19 2026 .TONIGHT...Southeast wind 5 to 10 knots becoming west late in the night. Snow likely and chance of light freezing drizzle in the evening. Chance of light freezing rain and slight chance of drizzle through the night. Slight chance of light freezing drizzle after midnight. Patchy fog in the late evening and overnight. Waves 1 foot or less. .FRIDAY...Northwest wind 5 to 10 knots becoming southwest in the afternoon. Patchy fog in the morning. Waves 1 foot or less. .FRIDAY NIGHT...West wind 5 to 10 knots becoming north early in the morning. Mostly cloudy. Waves 1 foot or less. .SATURDAY...Northeast wind 10 to 15 knots. Gusts up to 20 knots late in the afternoon. Chance of rain in the morning. Chance of snow through the day. Slight chance of light sleet in the afternoon. Waves 1 foot or less. Note...Wave height forecasts are for ice free areas. $$ LSZ141-200400- Grand Marais to Taconite Harbor MN- 553 PM CDT Thu Mar 19 2026 .TONIGHT...East wind 5 knots becoming southwest after midnight. Chance of snow and light freezing drizzle early in the evening. Slight chance of drizzle in the evening. Slight chance of light freezing drizzle in the late evening and early morning. Patchy fog after midnight. Waves 1 to 2 feet. .FRIDAY...West wind 5 knots. Mostly sunny. Waves 1 foot or less. .FRIDAY NIGHT...West wind 5 knots becoming northeast early in the morning. Mostly cloudy. Waves 1 foot or less. .SATURDAY...East wind 10 to 15 knots with gusts to around 20 knots. Chance of rain in the morning. Chance of snow through the day. Slight chance of light sleet in the afternoon. Waves 1 to 2 feet. Note...Wave height forecasts are for ice free areas. $$ LSZ142-200400- Taconite Harbor to Silver Bay Harbor MN- 553 PM CDT Thu Mar 19 2026 .TONIGHT...East wind 5 knots becoming southwest in the late evening and early morning, then becoming southwest 5 knots late in the night. Slight chance of drizzle, snow and light sleet early in the evening. Slight chance of light freezing drizzle in the evening. Patchy fog after midnight. Waves 1 foot or less. .FRIDAY...West wind 5 knots. Patchy fog in the morning. Waves 1 foot or less. .FRIDAY NIGHT...West wind 5 knots becoming northeast early in the morning. Mostly cloudy. Waves 1 foot or less. .SATURDAY...East wind 10 to 15 knots. Chance of rain and snow through the day. Chance of light sleet in the afternoon. Waves 1 to 2 feet. Note...Wave height forecasts are for ice free areas. $$ LSZ143-200400- Silver Bay Harbor to Two Harbors MN- 553 PM CDT Thu Mar 19 2026 .TONIGHT...Northeast wind 5 to 10 knots becoming southwest in the late evening and overnight. Slight chance of light freezing drizzle early in the evening. Waves 1 foot or less. .FRIDAY...West wind 5 knots. Patchy fog in the morning. Waves 1 foot or less. .FRIDAY NIGHT...West wind 5 knots becoming northwest after midnight, then becoming northeast early in the morning. Mostly cloudy. Waves 1 foot or less. .SATURDAY...Northeast wind 10 to 15 knots with gusts to around 20 knots. Chance of rain and snow through the day. Waves 1 to 2 feet. Note...Wave height forecasts are for ice free areas. $$ LSZ144-200400- Two Harbors to Duluth MN- 553 PM CDT Thu Mar 19 2026 .TONIGHT...Northeast wind 5 to 10 knots becoming southwest in the late evening and early morning, then becoming west late in the night. Mostly cloudy. Waves 1 foot or less. .FRIDAY...West wind 5 to 10 knots. Patchy fog in the morning. Waves 1 foot or less. .FRIDAY NIGHT...West wind 5 knots becoming northeast early in the morning. Mostly cloudy. Waves 1 foot or less. .SATURDAY...East wind 10 to 15 knots. Gusts up to 20 knots late in the afternoon. Chance of rain and snow through the day. Waves 1 to 2 feet. Note...Wave height forecasts are for ice free areas. $$ LSZ145-200400- Duluth MN to Port Wing WI- 553 PM CDT Thu Mar 19 2026 .TONIGHT...East wind 5 to 10 knots becoming southwest in the late evening and overnight. Mostly cloudy. Waves 1 foot or less. .FRIDAY...West wind 5 to 10 knots. Patchy fog in the morning. Waves 1 foot or less. .FRIDAY NIGHT...Southwest wind 5 knots becoming southeast early in the morning. Mostly cloudy. Waves 1 foot or less. .SATURDAY...East wind 10 to 15 knots. Chance of rain through the day. Waves 1 to 2 feet. Note...Wave height forecasts are for ice free areas. $$ LSZ146-200400- Port Wing to Sand Island WI- 553 PM CDT Thu Mar 19 2026 .TONIGHT...East wind 5 to 10 knots becoming southwest in the late evening and overnight. Slight chance of light freezing drizzle early in the evening. Patchy fog in the late evening and early morning. Waves 1 foot or less. .FRIDAY...West wind 5 knots. Patchy fog in the morning. Waves 1 foot or less. .FRIDAY NIGHT...Southwest wind 5 knots becoming southeast early in the morning. Mostly cloudy. Waves 1 foot or less. .SATURDAY...East wind 10 to 15 knots. Chance of rain through the day. Chance of snow in the afternoon. Waves 1 to 2 feet. Note...Wave height forecasts are for ice free areas. $$ LSZ147-200400- Sand Island to Bayfield WI- 553 PM CDT Thu Mar 19 2026 .TONIGHT...Southeast wind 5 knots becoming southwest in the late evening and early morning, then becoming west late in the night. Slight chance of drizzle and light freezing drizzle early in the evening. Patchy fog in the late evening and early morning. Waves 1 foot or less. .FRIDAY...West wind 5 knots. Patchy fog in the morning. Waves 1 foot or less. .FRIDAY NIGHT...West wind 5 knots becoming south early in the morning. Mostly cloudy. Waves 1 foot or less. .SATURDAY...East wind 10 to 15 knots. Chance of rain through the day. Chance of snow in the afternoon. Waves 1 to 2 feet. Note...Wave height forecasts are for ice free areas. $$ LSZ150-200400- Outer Apostle Islands Beyond 5 NM from Mainland- 553 PM CDT Thu Mar 19 2026 .TONIGHT...Southeast wind 5 to 10 knots becoming southwest in the late evening and early morning, then becoming west late in the night. Slight chance of drizzle and light freezing drizzle early in the evening. Patchy fog in the late evening and overnight. Waves 1 foot or less. .FRIDAY...West wind 5 to 10 knots. Patchy fog in the morning. Waves 1 foot or less. .FRIDAY NIGHT...West wind 5 knots becoming south early in the morning. Mostly cloudy. Waves 1 foot or less. .SATURDAY...East wind 10 to 15 knots. Gusts up to 20 knots late in the afternoon. Chance of rain and snow through the day. Waves 1 to 3 feet. Note...Wave height forecasts are for ice free areas. $$ LSZ148-200400- Oak Point to Saxon Harbor WI- 553 PM CDT Thu Mar 19 2026 .TONIGHT...Southeast wind 5 to 10 knots becoming southwest in the late evening and overnight. Patchy fog after midnight. Waves 1 foot or less. .FRIDAY...West wind 5 to 10 knots. Patchy fog in the morning. Waves 1 foot or less. .FRIDAY NIGHT...Southwest wind 5 knots becoming south early in the morning. Mostly cloudy. Waves 1 foot or less. .SATURDAY...Southeast wind 5 to 10 knots becoming northeast 10 to 15 knots late in the afternoon. Slight chance of rain in the morning, then chance of rain in the afternoon. Waves 1 to 3 feet. Note...Wave height forecasts are for ice free areas. $$ Graphical marine forecasts are available online at: weather.gov/greatlakes WFO DLH