FZUS53 KDLH 160753 NSHDLH Nearshore Marine Forecast National Weather Service Duluth MN 253 AM CDT Mon Mar 16 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. LSZ140-161600- Grand Portage to Grand Marais MN- 253 AM CDT Mon Mar 16 2026 ...STORM WARNING IN EFFECT THROUGH THIS AFTERNOON... ...HEAVY FREEZING SPRAY WARNING IN EFFECT THROUGH THIS AFTERNOON... .TODAY...North gales to 35 knots with gales to around 45 knots easing to up to 30 knots with gales to around 45 knots in the afternoon. Heavy freezing spray until late afternoon. Waves 4 to 7 feet. Waves occasionally to 10 feet. .TONIGHT...North wind up to 30 knots with gales to around 40 knots easing to 15 to 20 knots with gusts to around 25 knots early in the morning. Mostly clear. Waves 3 to 5 feet subsiding to 1 to 2 feet early in the morning. Waves occasionally to 7 feet. A gale warning may be needed. .TUESDAY...Northwest wind 10 to 15 knots with gusts to around 20 knots becoming west 5 to 10 knots in the afternoon. Mostly sunny. Waves 1 to 2 feet. .TUESDAY NIGHT...South wind 15 to 20 knots. Gusts up to 20 knots increasing to 25 knots in the late evening and overnight. Chance of snow in the evening, then slight chance of snow after midnight. Waves 1 to 2 feet building to 3 to 5 feet in the late evening and overnight. A small craft advisory may be needed. Note...Wave height forecasts are for ice free areas. $$ LSZ141-161600- Grand Marais to Taconite Harbor MN- 253 AM CDT Mon Mar 16 2026 ...GALE WARNING IN EFFECT THROUGH LATE TONIGHT... ...HEAVY FREEZING SPRAY WARNING IN EFFECT THROUGH THIS AFTERNOON... .TODAY...North wind up to 30 knots. Gales up to 40 knots decreasing to 30 knots. Heavy freezing spray early in the morning. Waves 4 to 6 feet. Waves occasionally to 8 feet. .TONIGHT...North wind 15 to 20 knots. Gusts up to 30 knots decreasing to 20 knots. Mostly clear. Waves 2 to 4 feet subsiding to 1 to 3 feet in the late evening and overnight. .TUESDAY...Northwest wind 5 to 10 knots becoming southwest late in the afternoon. Sunny in the morning then becoming partly sunny. Waves 1 foot or less. .TUESDAY NIGHT...South wind 10 to 15 knots. Gusts up to 20 knots late in the evening increasing to 25 knots, then decreasing to 20 knots early in the morning. Chance of snow through the night. Waves 1 to 2 feet building to 1 to 3 feet after midnight. Note...Wave height forecasts are for ice free areas. $$ LSZ142-161600- Taconite Harbor to Silver Bay Harbor MN- 253 AM CDT Mon Mar 16 2026 ...GALE WARNING IN EFFECT THROUGH THIS AFTERNOON... ...HEAVY FREEZING SPRAY WARNING IN EFFECT THROUGH THIS AFTERNOON... .TODAY...North wind 20 to 25 knots. Gales up to 40 knots decreasing to 25 knots. Heavy freezing spray in the morning. Waves 4 to 6 feet subsiding to 2 to 4 feet late in the afternoon. Waves occasionally to 8 feet. .TONIGHT...North wind 15 to 20 knots with gusts to around 25 knots becoming northwest 5 to 10 knots with gusts to around 20 knots early in the morning. Mostly clear. Waves 1 to 3 feet subsiding to 1 to 2 feet in the late evening and overnight. .TUESDAY...Northwest wind 5 to 10 knots becoming southwest late in the afternoon. Mostly sunny. Waves 1 foot or less. .TUESDAY NIGHT...South wind 5 to 10 knots. Gusts up to 20 knots in the late evening and overnight. Chance of snow through the night. Slight chance of light sleet after midnight. Waves 1 to 2 feet. Note...Wave height forecasts are for ice free areas. $$ LSZ143-161600- Silver Bay Harbor to Two Harbors MN- 253 AM CDT Mon Mar 16 2026 ...GALE WARNING IN EFFECT UNTIL NOON CDT TODAY... ...HEAVY FREEZING SPRAY WARNING IN EFFECT UNTIL NOON CDT TODAY... .TODAY...North wind 20 to 25 knots. Gusts up to 35 knots decreasing to 25 knots. Heavy freezing spray in the morning. Waves 4 to 7 feet subsiding to 3 to 5 feet in the afternoon. Waves occasionally to 9 feet. .TONIGHT...North wind 15 to 20 knots with gusts to around 25 knots becoming northwest 5 to 10 knots early in the morning. Mostly clear. Waves 1 to 3 feet subsiding to 1 to 2 feet in the late evening and overnight. .TUESDAY...Northwest wind 5 to 10 knots becoming southwest late in the afternoon. Mostly sunny. Waves 1 foot or less. .TUESDAY NIGHT...South wind 10 to 15 knots. Chance of snow through the night. Waves 1 to 2 feet. Note...Wave height forecasts are for ice free areas. $$ LSZ144-161600- Two Harbors to Duluth MN- 253 AM CDT Mon Mar 16 2026 ...GALE WARNING IN EFFECT UNTIL NOON CDT TODAY... ...HEAVY FREEZING SPRAY WARNING IN EFFECT UNTIL NOON CDT TODAY... .TODAY...North wind 20 to 25 knots. Gusts up to 30 knots in the morning. Heavy freezing spray early in the morning. Waves 4 to 6 feet subsiding to 2 to 4 feet late in the afternoon. Waves occasionally to 8 feet. .TONIGHT...Northwest wind 20 to 25 knots easing to 10 to 15 knots with gusts to around 20 knots after midnight. Mostly clear. Waves 2 to 4 feet subsiding to 1 to 3 feet in the late evening and overnight. A small craft advisory may be needed. .TUESDAY...Northwest wind 5 to 10 knots becoming southwest in the afternoon. Slight chance of snow in the afternoon. Waves 1 foot or less. .TUESDAY NIGHT...South wind 10 to 15 knots. Chance of snow in the evening, then slight chance of snow and light freezing rain after midnight. Waves 1 to 2 feet. Note...Wave height forecasts are for ice free areas. $$ LSZ145-161600- Duluth MN to Port Wing WI- 253 AM CDT Mon Mar 16 2026 ...GALE WARNING IN EFFECT UNTIL NOON CDT TODAY... ...HEAVY FREEZING SPRAY WARNING IN EFFECT UNTIL NOON CDT TODAY... .TODAY...North wind up to 30 knots. Heavy freezing spray. Waves 7 to 10 feet subsiding to 4 to 7 feet in the afternoon. Waves occasionally to 13 feet. .TONIGHT...North wind 20 to 25 knots becoming northwest 10 to 15 knots early in the morning. Heavy freezing spray in the evening. Waves 4 to 6 feet subsiding to 1 to 3 feet early in the morning. Waves occasionally to 8 feet. A small craft advisory may be needed. .TUESDAY...Northwest wind 5 to 10 knots becoming southwest in the afternoon. Slight chance of snow in the afternoon. Waves 1 to 2 feet. .TUESDAY NIGHT...South wind 10 to 15 knots. Gusts up to 20 knots in the late evening and overnight. Chance of snow in the evening, then slight chance of snow and light freezing rain after midnight. Waves 1 to 2 feet. Note...Wave height forecasts are for ice free areas. $$ LSZ146-161600- Port Wing to Sand Island WI- 253 AM CDT Mon Mar 16 2026 ...GALE WARNING IN EFFECT UNTIL NOON CDT TODAY... ...HEAVY FREEZING SPRAY WARNING IN EFFECT UNTIL NOON CDT TODAY... .TODAY...North wind up to 30 knots. Gusts up to 35 knots. Heavy freezing spray. Waves 7 to 12 feet subsiding to 7 to 10 feet in the afternoon. Waves occasionally to 16 feet. .TONIGHT...North wind 20 to 25 knots easing to 10 to 15 knots with gusts to around 20 knots early in the morning. Heavy freezing spray in the evening. Waves 4 to 7 feet subsiding to 3 to 5 feet after midnight. Waves occasionally to 9 feet. A small craft advisory may be needed. .TUESDAY...Northwest wind 5 to 10 knots becoming west in the afternoon. Partly sunny. Waves 1 to 2 feet. .TUESDAY NIGHT...South wind 10 to 15 knots. Gusts up to 20 knots in the late evening and early morning. Chance of snow through the night. Waves 1 to 2 feet. Note...Wave height forecasts are for ice free areas. $$ LSZ147-161600- Sand Island to Bayfield WI- 253 AM CDT Mon Mar 16 2026 ...GALE WARNING IN EFFECT THROUGH THIS AFTERNOON... ...HEAVY FREEZING SPRAY WARNING IN EFFECT THROUGH THIS AFTERNOON... .TODAY...North wind up to 30 knots. Gusts up to 35 knots. Slight chance of snow early in the morning. Heavy freezing spray through the day. Waves 8 to 13 feet subsiding to 7 to 10 feet in the afternoon. Waves occasionally to 17 feet. .TONIGHT...North wind 20 to 25 knots easing to 10 to 15 knots with gusts to around 20 knots early in the morning. Heavy freezing spray in the evening. Waves 5 to 8 feet subsiding to 4 to 6 feet after midnight. Waves occasionally to 10 feet. A small craft advisory may be needed. .TUESDAY...Northwest wind 5 to 10 knots becoming west in the afternoon. Partly sunny. Waves 1 to 3 feet. .TUESDAY NIGHT...South wind 5 to 10 knots. Gusts up to 20 knots after midnight. Chance of snow through the night. Waves 1 foot or less. Note...Wave height forecasts are for ice free areas. $$ LSZ150-161600- Outer Apostle Islands Beyond 5 NM from Mainland- 253 AM CDT Mon Mar 16 2026 ...GALE WARNING IN EFFECT THROUGH THIS AFTERNOON... ...HEAVY FREEZING SPRAY WARNING IN EFFECT THROUGH THIS AFTERNOON... .TODAY...North wind up to 30 knots. Gusts up to 35 knots decreasing to 30 knots in the afternoon. Slight chance of snow in the morning. Heavy freezing spray through the day. Waves 12 to 17 feet subsiding to 8 to 11 feet. Waves occasionally to 22 feet. .TONIGHT...North wind 20 to 25 knots with gusts to around 30 knots easing to 10 to 15 knots with gusts to around 20 knots early in the morning. Heavy freezing spray. Waves 7 to 10 feet subsiding to 4 to 7 feet after midnight. Waves occasionally to 13 feet. A small craft advisory may be needed. .TUESDAY...Northwest wind 5 to 10 knots becoming west in the afternoon. Partly sunny. Waves 2 to 4 feet subsiding to 1 to 3 feet in the late morning and afternoon. .TUESDAY NIGHT...South wind 10 to 15 knots. Gusts up to 20 knots in the late evening and overnight. Chance of snow. Waves 1 to 2 feet building to 1 to 3 feet after midnight. Note...Wave height forecasts are for ice free areas. $$ LSZ148-161600- Oak Point to Saxon Harbor WI- 253 AM CDT Mon Mar 16 2026 ...GALE WARNING IN EFFECT THROUGH THIS AFTERNOON... ...HEAVY FREEZING SPRAY WARNING IN EFFECT THROUGH THIS AFTERNOON... .TODAY...North wind up to 30 knots. Gusts up to 35 knots decreasing to 30 knots in the afternoon. Heavy freezing spray through the day. Chance of snow in the morning. Slight chance of light freezing rain and snow in the afternoon. Waves 11 to 16 feet subsiding to 7 to 10 feet. Waves occasionally to 21 feet. .TONIGHT...North wind 20 to 25 knots with gusts to around 30 knots easing to 10 to 15 knots with gusts to around 20 knots early in the morning. Heavy freezing spray. Waves 6 to 9 feet subsiding to 4 to 7 feet after midnight. Waves occasionally to 12 feet. A small craft advisory may be needed. .TUESDAY...Northwest wind 10 to 15 knots becoming west 5 to 10 knots in the afternoon. Partly sunny. Waves 2 to 4 feet subsiding to 1 to 3 feet in the late morning and afternoon. .TUESDAY NIGHT...South wind 10 to 15 knots. Gusts up to 20 knots in the late evening and overnight. Chance of snow through the night. Waves 1 to 2 feet. Note...Wave height forecasts are for ice free areas. $$ Graphical marine forecasts are available online at: weather.gov/greatlakes WFO DLH