Nearshore Marine Forecast
Issued by NWS Duluth, MN
Issued by NWS Duluth, MN
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144 FZUS53 KDLH 141102 NSHDLH Nearshore Marine Forecast National Weather Service Duluth MN 602 AM CDT Sat Mar 14 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. LSZ140-141600- Grand Portage to Grand Marais MN- 602 AM CDT Sat Mar 14 2026 ...GALE WARNING IN EFFECT FROM SUNDAY MORNING THROUGH LATE MONDAY NIGHT... .TODAY...Northwest wind 5 knots becoming southwest 10 to 15 knots in the late morning and afternoon. Mostly sunny. Waves 1 to 2 feet. .TONIGHT...South wind 5 to 10 knots becoming northeast 10 to 15 knots with gusts to around 25 knots early in the morning. Slight chance of snow after midnight. Waves 1 to 2 feet building to 1 to 3 feet early in the morning. .SUNDAY...Northeast wind up to 30 knots. Gusts up to 30 knots increasing to 40 knots. Heavy freezing spray. Chance of snow. Waves 3 to 5 feet building to 6 to 9 feet in the late morning and afternoon. Waves occasionally to 12 feet. .SUNDAY NIGHT...North wind up to 30 knots with gales to around 45 knots rising to gales to 35 knots with gales to around 45 knots in the late evening and early morning, then becoming northwest with storm force gusts to around 50 knots early in the morning. Heavy freezing spray. Chance of snow. Waves 6 to 9 feet. Waves occasionally to 11 feet. A storm warning may be needed. Note...Wave height forecasts are for ice free areas. $$ LSZ141-141600- Grand Marais to Taconite Harbor MN- 602 AM CDT Sat Mar 14 2026 ...GALE WARNING IN EFFECT FROM SUNDAY MORNING THROUGH LATE MONDAY NIGHT... .TODAY...Northwest wind 5 knots becoming south late in the afternoon. Mostly sunny. Waves 1 foot or less. .TONIGHT...Southeast wind 5 knots becoming east 10 to 15 knots with gusts to around 25 knots in the late evening and overnight. Chance of snow after midnight. Waves 1 to 2 feet building to 2 to 4 feet early in the morning. .SUNDAY...Northeast wind up to 30 knots. Gusts up to 30 knots increasing to 35 knots in the afternoon. Freezing spray through the day. Snow likely in the morning. Chance of snow in the afternoon. Waves 5 to 8 feet. Waves occasionally to 10 feet. .SUNDAY NIGHT...North wind up to 30 knots with gales to around 40 knots becoming west with gales to around 45 knots early in the morning. Freezing spray in the evening. Chance of snow in the evening, then slight chance of snow after midnight. Waves 4 to 7 feet subsiding to 3 to 5 feet after midnight. Waves occasionally to 9 feet. Note...Wave height forecasts are for ice free areas. $$ LSZ142-141600- Taconite Harbor to Silver Bay Harbor MN- 602 AM CDT Sat Mar 14 2026 ...GALE WARNING IN EFFECT FROM SUNDAY MORNING THROUGH MONDAY AFTERNOON... .TODAY...Northwest wind 5 knots becoming southwest in the late morning and afternoon. Mostly sunny. Waves 1 foot or less. .TONIGHT...East wind 5 to 10 knots with gusts to around 20 knots becoming northeast 15 to 20 knots with gusts to around 25 knots early in the morning. Slight chance of snow in the evening, then chance of snow after midnight. Waves 1 to 2 feet building to 2 to 4 feet early in the morning. A small craft advisory may be needed. .SUNDAY...Northeast wind 20 to 25 knots with gales to around 35 knots. Freezing spray. Snow likely. Waves 7 to 10 feet. Waves occasionally to 13 feet. .SUNDAY NIGHT...North wind 20 to 25 knots with gales to around 35 knots becoming west up to 30 knots with gales to around 40 knots after midnight. Freezing spray through the night. Chance of snow in the evening. Slight chance of snow after midnight. Waves 6 to 9 feet subsiding to 4 to 6 feet after midnight. Waves occasionally to 12 feet. Note...Wave height forecasts are for ice free areas. $$ LSZ143-141600- Silver Bay Harbor to Two Harbors MN- 602 AM CDT Sat Mar 14 2026 ...GALE WARNING IN EFFECT FROM SUNDAY MORNING THROUGH MONDAY MORNING... .TODAY...West wind 5 to 10 knots becoming south late in the afternoon. Mostly sunny. Waves 1 foot or less. .TONIGHT...East wind 15 to 20 knots with gusts to around 30 knots. Chance of snow through the night. Waves 1 to 3 feet building to 3 to 5 feet early in the morning. Waves occasionally to 7 feet. A small craft advisory may be needed. .SUNDAY...Northeast wind up to 30 knots with gales to around 35 knots. Freezing spray through the day. Snow in the morning. Snow likely in the afternoon. Waves 8 to 11 feet. Waves occasionally to 14 feet. .SUNDAY NIGHT...North wind up to 30 knots with gales to around 40 knots becoming west with gales to around 40 knots early in the morning. Freezing spray. Chance of snow. Waves 7 to 10 feet subsiding to 4 to 7 feet after midnight. Waves occasionally to 13 feet. Note...Wave height forecasts are for ice free areas. $$ LSZ144-141600- Two Harbors to Duluth MN- 602 AM CDT Sat Mar 14 2026 ...GALE WARNING IN EFFECT FROM SUNDAY MORNING THROUGH MONDAY MORNING... .TODAY...Southwest wind 5 knots becoming southeast late in the afternoon. Sunny in the morning then becoming partly sunny. Waves 1 foot or less. .TONIGHT...East wind 10 to 15 knots with gusts to around 20 knots rising to 20 to 25 knots with gusts to around 30 knots early in the morning. Chance of snow in the evening, then snow after midnight. Waves 1 to 3 feet building to 4 to 6 feet early in the morning. Waves occasionally to 8 feet. A small craft advisory may be needed. .SUNDAY...Northeast wind up to 30 knots. Gusts up to 35 knots increasing to 40 knots late in the morning, then decreasing to 35 knots early in the afternoon increasing to 40 knots late in the afternoon. Freezing spray through the day. Snow in the morning. Snow likely in the afternoon. Waves 6 to 9 feet building to 8 to 11 feet in the late morning and afternoon. Waves occasionally to 15 feet. .SUNDAY NIGHT...North wind up to 30 knots with gales to around 35 knots becoming west with gales to around 40 knots in the late evening and overnight. Freezing spray. Chance of snow. Waves 7 to 10 feet subsiding to 4 to 7 feet after midnight. Waves occasionally to 13 feet. Note...Wave height forecasts are for ice free areas. $$ LSZ145-141600- Duluth MN to Port Wing WI- 602 AM CDT Sat Mar 14 2026 ...GALE WARNING IN EFFECT FROM SUNDAY MORNING THROUGH MONDAY MORNING... .TODAY...Southwest wind 5 knots becoming east late in the afternoon. Mostly sunny until late afternoon then becoming mostly cloudy. Waves 1 foot or less. .TONIGHT...East wind 10 to 15 knots with gusts to around 20 knots rising to 20 to 25 knots with gusts to around 30 knots early in the morning. Chance of snow in the evening, then snow after midnight. Waves 1 to 3 feet building to 4 to 6 feet early in the morning. Waves occasionally to 8 feet. A small craft advisory may be needed. .SUNDAY...Northeast wind up to 30 knots. Gusts up to 35 knots increasing to 40 knots in the late morning and afternoon. Freezing spray through the day. Snow in the morning. Snow likely in the afternoon. Waves 7 to 10 feet building to 8 to 13 feet in the late morning and afternoon. Waves occasionally to 17 feet. .SUNDAY NIGHT...North wind up to 30 knots becoming west early in the morning. Gusts up to 35 knots. Heavy freezing spray. Chance of snow. Waves 7 to 12 feet subsiding to 7 to 10 feet after midnight. Waves occasionally to 16 feet. Note...Wave height forecasts are for ice free areas. $$ LSZ146-141600- Port Wing to Sand Island WI- 602 AM CDT Sat Mar 14 2026 ...GALE WARNING IN EFFECT FROM SUNDAY MORNING THROUGH MONDAY MORNING... .TODAY...Southwest wind 5 knots becoming southeast late in the afternoon. Mostly sunny. Waves 1 foot or less. .TONIGHT...East wind 10 to 15 knots with gusts to around 20 knots rising to 20 to 25 knots with gusts to around 30 knots early in the morning. Chance of snow in the evening, then snow after midnight. Waves 1 to 2 feet building to 3 to 5 feet early in the morning. A small craft advisory may be needed. .SUNDAY...Northeast wind up to 30 knots. Gusts up to 35 knots increasing to 40 knots in the late morning and afternoon. Freezing spray through the day. Snow in the morning. Snow likely in the afternoon. Waves 6 to 9 feet building to 8 to 13 feet in the late morning and afternoon. Waves occasionally to 17 feet. .SUNDAY NIGHT...North wind up to 30 knots with gales to around 40 knots becoming west gales to 35 knots with gales to around 40 knots early in the morning. Heavy freezing spray. Chance of snow. Waves 7 to 12 feet. Waves occasionally to 16 feet. Note...Wave height forecasts are for ice free areas. $$ LSZ147-141600- Sand Island to Bayfield WI- 602 AM CDT Sat Mar 14 2026 ...GALE WARNING IN EFFECT FROM SUNDAY MORNING THROUGH MONDAY AFTERNOON... .TODAY...West wind 5 knots becoming southeast late in the afternoon. Mostly sunny. Waves 1 foot or less. .TONIGHT...East wind 5 to 10 knots rising to 15 to 20 knots with gusts to around 25 knots early in the morning. Chance of snow in the evening, then snow after midnight. Waves 1 to 2 feet building to 2 to 4 feet early in the morning. .SUNDAY...Northeast wind up to 30 knots. Gusts up to 35 knots increasing to 45 knots. Freezing spray through the day. Snow in the morning. Snow likely in the afternoon. Waves 4 to 7 feet building to 8 to 13 feet in the late morning and afternoon. Waves occasionally to 17 feet. .SUNDAY NIGHT...North wind up to 30 knots becoming northwest gales to 35 knots early in the morning. Gales up to 40 knots. Heavy freezing spray. Chance of snow. Waves 8 to 13 feet. Waves occasionally to 17 feet. Note...Wave height forecasts are for ice free areas. $$ LSZ150-141600- Outer Apostle Islands Beyond 5 NM from Mainland- 602 AM CDT Sat Mar 14 2026 ...GALE WARNING IN EFFECT FROM SUNDAY MORNING THROUGH MONDAY AFTERNOON... .TODAY...West wind 5 knots becoming south late in the afternoon. Mostly sunny. Waves 1 to 2 feet. .TONIGHT...East wind 5 to 10 knots rising to 15 to 20 knots with gusts to around 25 knots early in the morning. Slight chance of snow in the evening, then chance of snow after midnight. Waves 1 to 2 feet building to 2 to 4 feet early in the morning. A small craft advisory may be needed. .SUNDAY...Northeast wind up to 30 knots with gales to around 40 knots rising to gales to 35 knots with gales to around 45 knots in the afternoon. Freezing spray through the day. Snow in the morning. Snow likely in the afternoon. Waves 5 to 8 feet building to 12 to 17 feet. Waves occasionally to 22 feet. .SUNDAY NIGHT...North gales to 35 knots. Gales up to 45 knots decreasing to 40 knots after midnight, then increasing to 45 knots early in the morning. Heavy freezing spray and blowing snow. Chance of snow. Waves 12 to 17 feet. Waves occasionally to 23 feet. Note...Wave height forecasts are for ice free areas. $$ LSZ148-141600- Oak Point to Saxon Harbor WI- 602 AM CDT Sat Mar 14 2026 ...GALE WARNING IN EFFECT FROM SUNDAY MORNING THROUGH MONDAY AFTERNOON... .TODAY...Southwest wind 5 knots becoming southeast late in the afternoon. Sunny in the morning then becoming partly sunny. Waves 1 to 2 feet. .TONIGHT...East wind 5 to 10 knots rising to 15 to 20 knots with gusts to around 25 knots early in the morning. Chance of snow in the evening, then snow after midnight. Waves 1 to 2 feet building to 2 to 4 feet early in the morning. A small craft advisory may be needed. .SUNDAY...Northeast wind up to 30 knots with gales to around 40 knots rising to gales to 35 knots with gales to around 45 knots late in the afternoon. Freezing spray. Snow. Waves 5 to 8 feet building to 11 to 16 feet. Waves occasionally to 21 feet. .SUNDAY NIGHT...North gales to 35 knots with gales to around 45 knots. Heavy freezing spray. Snow likely. Waves 13 to 18 feet subsiding to 11 to 16 feet after midnight. Waves occasionally to 24 feet. Note...Wave height forecasts are for ice free areas. $$ Graphical marine forecasts are available online at: weather.gov/greatlakes WFO DLH