FZUS53 KDLH 151823 NSHDLH Nearshore Marine Forecast National Weather Service Duluth MN 122 PM CDT Sun Mar 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. LSZ140-152200- Grand Portage to Grand Marais MN- 122 PM CDT Sun Mar 15 2026 ...GALE WARNING IN EFFECT UNTIL 7 PM CDT THIS EVENING... ...HEAVY FREEZING SPRAY WARNING IN EFFECT THROUGH MONDAY AFTERNOON... ...STORM WARNING IN EFFECT FROM 7 PM CDT THIS EVENING THROUGH MONDAY AFTERNOON... .REST OF TODAY...Northeast wind up to 30 knots with gales to around 40 knots. Freezing spray through the day. Snow likely early in the afternoon. Chance of snow late. Waves 5 to 8 feet. Waves occasionally to 11 feet. .TONIGHT...North gales to 35 knots with storm force gusts to around 50 knots. Slight chance of snow in the evening. Heavy freezing spray through the night. Waves 6 to 9 feet. Waves occasionally to 11 feet. .MONDAY...North gales to 35 knots with storm force gusts to around 50 knots easing to up to 30 knots with gales to around 45 knots late in the afternoon. Heavy freezing spray. Waves 5 to 8 feet subsiding to 4 to 6 feet late in the afternoon. Waves occasionally to 11 feet. .MONDAY NIGHT...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. Partly cloudy. Waves 3 to 5 feet subsiding to 1 to 2 feet. Waves occasionally to 7 feet. A gale warning may be needed. Note...Wave height forecasts are for ice free areas. $$ LSZ141-152200- Grand Marais to Taconite Harbor MN- 122 PM CDT Sun Mar 15 2026 ...GALE WARNING IN EFFECT THROUGH LATE MONDAY NIGHT... ...HEAVY FREEZING SPRAY WARNING IN EFFECT THROUGH MONDAY AFTERNOON... .REST OF TODAY...Northeast wind up to 30 knots with gales to around 35 knots. Freezing spray. Chance of snow. Waves 5 to 8 feet. Waves occasionally to 10 feet. .TONIGHT...North wind up to 30 knots. Gales up to 40 knots increasing to 45 knots after midnight. Heavy freezing spray. Waves 4 to 7 feet. Waves occasionally to 9 feet. .MONDAY...North wind up to 30 knots. Storm force gusts up to 50 knots decreasing to 35 knots. Heavy freezing spray in the morning. Waves 4 to 7 feet subsiding to 3 to 5 feet late in the afternoon. Waves occasionally to 9 feet. A storm warning may be needed. .MONDAY NIGHT...North wind 20 to 25 knots with gales to around 35 knots becoming northwest 10 to 15 knots with gusts to around 25 knots after midnight. Mostly clear. Waves 2 to 4 feet subsiding to 1 to 3 feet in the late evening and overnight. Note...Wave height forecasts are for ice free areas. $$ LSZ142-152200- Taconite Harbor to Silver Bay Harbor MN- 122 PM CDT Sun Mar 15 2026 ...GALE WARNING IN EFFECT THROUGH MONDAY AFTERNOON... ...HEAVY FREEZING SPRAY WARNING IN EFFECT THROUGH MONDAY AFTERNOON... .REST OF TODAY...Northeast wind up to 30 knots. Gusts up to 35 knots late. Snow likely early in the afternoon, then chance of snow late. Waves 6 to 9 feet. Waves occasionally to 12 feet. .TONIGHT...North wind up to 30 knots. Gusts up to 35 knots increasing to 45 knots. Slight chance of snow in the evening. Heavy freezing spray through the night. Waves 5 to 8 feet. Waves occasionally to 11 feet. .MONDAY...North wind up to 30 knots. Gales up to 45 knots decreasing to 30 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. .MONDAY NIGHT...North wind 15 to 20 knots with gusts to around 30 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. Note...Wave height forecasts are for ice free areas. $$ LSZ143-152200- Silver Bay Harbor to Two Harbors MN- 122 PM CDT Sun Mar 15 2026 ...GALE WARNING IN EFFECT THROUGH MONDAY MORNING... ...HEAVY FREEZING SPRAY WARNING IN EFFECT THROUGH MONDAY MORNING... .REST OF TODAY...Northeast wind up to 30 knots with gales to around 35 knots. Freezing spray early in the afternoon. Snow early in the afternoon, then snow likely late. Waves 8 to 11 feet. Waves occasionally to 14 feet. .TONIGHT...North wind up to 30 knots. Gusts up to 35 knots increasing to 40 knots early in the morning. Chance of snow in the evening. Heavy freezing spray through the night. Waves 6 to 9 feet. Waves occasionally to 12 feet. .MONDAY...North wind up to 30 knots with gales to around 40 knots easing to 15 to 20 knots with gusts to around 30 knots late in the afternoon. Heavy freezing spray in the morning. Waves 5 to 8 feet subsiding to 3 to 5 feet in the afternoon. Waves occasionally to 10 feet. .MONDAY NIGHT...Northwest wind 15 to 20 knots with gusts to around 25 knots easing to 5 to 10 knots early in the morning. Mostly clear. Waves 1 to 3 feet subsiding to 1 to 2 feet in the late evening and overnight. Note...Wave height forecasts are for ice free areas. $$ LSZ144-152200- Two Harbors to Duluth MN- 122 PM CDT Sun Mar 15 2026 ...GALE WARNING IN EFFECT THROUGH MONDAY MORNING... ...HEAVY FREEZING SPRAY WARNING IN EFFECT THROUGH MONDAY MORNING... .REST OF TODAY...Northeast wind up to 30 knots with gales to around 35 knots. Snow early in the afternoon, then snow likely late. Waves 8 to 11 feet. Waves occasionally to 14 feet. .TONIGHT...North wind up to 30 knots. Gusts up to 35 knots increasing to 40 knots early in the morning. Chance of snow in the evening. Heavy freezing spray through the night. Waves 6 to 9 feet subsiding to 4 to 7 feet after midnight. Waves occasionally to 12 feet. .MONDAY...North wind up to 30 knots. Gusts up to 35 knots decreasing to 30 knots in the afternoon. Heavy freezing spray in the morning. Waves 4 to 7 feet subsiding to 2 to 4 feet in the afternoon. Waves occasionally to 9 feet. .MONDAY NIGHT...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. Note...Wave height forecasts are for ice free areas. $$ LSZ145-152200- Duluth MN to Port Wing WI- 122 PM CDT Sun Mar 15 2026 ...GALE WARNING IN EFFECT THROUGH MONDAY MORNING... ...HEAVY FREEZING SPRAY WARNING IN EFFECT THROUGH MONDAY MORNING... .REST OF TODAY...Northeast gales to 35 knots with gales to around 40 knots. Freezing spray through the day. Snow early in the afternoon. Snow likely late. Waves 9 to 14 feet. Waves occasionally to 18 feet. .TONIGHT...North gales to 35 knots. Heavy freezing spray through the night. Chance of snow in the evening. Slight chance of snow after midnight. Waves 8 to 13 feet. Waves occasionally to 17 feet. .MONDAY...North wind up to 30 knots. Gusts up to 35 knots decreasing to 30 knots in the afternoon. Heavy freezing spray. Waves 8 to 11 feet subsiding to 4 to 7 feet in the afternoon. Waves occasionally to 14 feet. .MONDAY NIGHT...Northwest wind 20 to 25 knots easing to 10 to 15 knots with gusts to around 20 knots after midnight. Partly cloudy. Waves 4 to 6 feet subsiding to 1 to 2 feet. Waves occasionally to 7 feet. A small craft advisory may be needed. Note...Wave height forecasts are for ice free areas. $$ LSZ146-152200- Port Wing to Sand Island WI- 122 PM CDT Sun Mar 15 2026 ...GALE WARNING IN EFFECT THROUGH MONDAY MORNING... ...HEAVY FREEZING SPRAY WARNING IN EFFECT THROUGH MONDAY MORNING... .REST OF TODAY...Northeast gales to 35 knots with gales to around 40 knots. Freezing spray through the day. Snow early in the afternoon. Snow likely late. Waves 9 to 14 feet. Waves occasionally to 18 feet. .TONIGHT...North wind up to 30 knots with gales to around 35 knots rising to gales to 35 knots late in the evening, then easing to up to 30 knots with gales to around 35 knots after midnight rising to gales to 35 knots with gales to around 40 knots early in the morning. Heavy freezing spray through the night. Chance of snow in the evening. Slight chance of snow after midnight. Waves 8 to 13 feet. Waves occasionally to 17 feet. .MONDAY...North wind up to 30 knots. Gusts up to 35 knots decreasing to 30 knots in the afternoon. Heavy freezing spray. Waves 7 to 12 feet subsiding to 6 to 9 feet in the afternoon. Waves occasionally to 16 feet. .MONDAY NIGHT...Northwest wind 20 to 25 knots easing to 10 to 15 knots with gusts to around 20 knots after midnight. Heavy freezing spray in the evening. Waves 4 to 6 feet subsiding to 1 to 2 feet. Waves occasionally to 8 feet. A small craft advisory may be needed. Note...Wave height forecasts are for ice free areas. $$ LSZ147-152200- Sand Island to Bayfield WI- 122 PM CDT Sun Mar 15 2026 ...GALE WARNING IN EFFECT THROUGH MONDAY AFTERNOON... ...HEAVY FREEZING SPRAY WARNING IN EFFECT THROUGH MONDAY AFTERNOON... .REST OF TODAY...Northeast gales to 35 knots with gales to around 40 knots. Freezing spray. Snow. Waves 8 to 13 feet. Waves occasionally to 17 feet. .TONIGHT...North wind up to 30 knots rising to gales to 35 knots early in the morning. Gales up to 40 knots. Heavy freezing spray through the night. Chance of snow in the evening. Slight chance of snow after midnight. Waves 8 to 13 feet. Waves occasionally to 16 feet. .MONDAY...North wind up to 30 knots. Gusts up to 35 knots decreasing to 30 knots in the afternoon. Slight chance of snow in the morning. Heavy freezing spray through the day. Waves 8 to 13 feet subsiding to 6 to 9 feet in the afternoon. Waves occasionally to 16 feet. .MONDAY NIGHT...North wind 15 to 20 knots. Gusts up to 30 knots decreasing to 20 knots. Heavy freezing spray in the evening. Waves 4 to 7 feet subsiding to 1 to 3 feet. Waves occasionally to 9 feet. A small craft advisory may be needed. Note...Wave height forecasts are for ice free areas. $$ LSZ150-152200- Outer Apostle Islands Beyond 5 NM from Mainland- 122 PM CDT Sun Mar 15 2026 ...GALE WARNING IN EFFECT THROUGH MONDAY AFTERNOON... ...HEAVY FREEZING SPRAY WARNING IN EFFECT THROUGH MONDAY AFTERNOON... .REST OF TODAY...Northeast gales to 35 knots with gales to around 40 knots. Freezing spray through the day. Snow early in the afternoon. Snow likely late. Waves 8 to 13 feet building to 11 to 16 feet late. Waves occasionally to 20 feet. .TONIGHT...North gales to 35 knots. Gales up to 45 knots decreasing to 40 knots after midnight. Heavy freezing spray through the night. Chance of snow in the evening. Slight chance of snow after midnight. Waves 13 to 18 feet. Waves occasionally to 24 feet. .MONDAY...North gales to 35 knots with gales to around 40 knots easing to up to 30 knots with gales to around 40 knots in the late morning and afternoon. Slight chance of snow in the morning. Heavy freezing spray through the day. Waves 12 to 17 feet subsiding to 7 to 10 feet. Waves occasionally to 22 feet. .MONDAY NIGHT...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 in the evening. Waves 6 to 9 feet subsiding to 4 to 6 feet after midnight. Waves occasionally to 11 feet. A small craft advisory may be needed. Note...Wave height forecasts are for ice free areas. $$ LSZ148-152200- Oak Point to Saxon Harbor WI- 122 PM CDT Sun Mar 15 2026 ...GALE WARNING IN EFFECT THROUGH MONDAY AFTERNOON... ...HEAVY FREEZING SPRAY WARNING IN EFFECT THROUGH MONDAY AFTERNOON... .REST OF TODAY...Northeast gales to 35 knots with gales to around 40 knots. Freezing spray. Snow. Waves 8 to 13 feet building to 10 to 15 feet late. Waves occasionally to 19 feet. .TONIGHT...North gales to 40 knots. Gales up to 45 knots decreasing to 40 knots early in the morning. Heavy freezing spray through the night. Snow likely in the evening. Chance of snow after midnight. Waves 13 to 18 feet. Waves occasionally to 23 feet. .MONDAY...North gales to 35 knots with gales to around 40 knots easing to up to 30 knots with gales to around 40 knots in the late morning and afternoon. Heavy freezing spray through the day. Chance of snow in the morning. Slight chance of snow in the afternoon. Waves 11 to 16 feet subsiding to 6 to 9 feet. Waves occasionally to 21 feet. .MONDAY NIGHT...North wind 20 to 25 knots with gusts to around 30 knots becoming northwest 10 to 15 knots with gusts to around 20 knots early in the morning. Heavy freezing spray in the evening. Slight chance of snow through the night. Waves 5 to 8 feet subsiding to 4 to 6 feet after midnight. Waves occasionally to 10 feet. A small craft advisory may be needed. Note...Wave height forecasts are for ice free areas. $$ Graphical marine forecasts are available online at: weather.gov/greatlakes WFO DLH