Nearshore Marine Forecast
Issued by NWS Duluth, MN
Issued by NWS Duluth, MN
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561 FZUS53 KDLH 211101 NSHDLH Nearshore Marine Forecast National Weather Service Duluth MN 601 AM CDT Tue May 21 2024 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. LSZ140-141-211615- Grand Portage to Grand Marais MN- Grand Marais to Taconite Harbor MN- 601 AM CDT Tue May 21 2024 ...SMALL CRAFT ADVISORY IN EFFECT FROM 10 AM THIS MORNING TO 4 PM CDT THIS AFTERNOON... ...GALE WARNING IN EFFECT FROM 4 PM CDT THIS AFTERNOON THROUGH WEDNESDAY EVENING... .TODAY...Northeast wind 20 to 25 knots with gales to around 35 knots. Chance of rain showers early in the afternoon. Rain showers and slight chance of thunderstorms late in the afternoon. Waves 1 to 2 feet building to 5 to 8 feet. Waves occasionally to 10 feet. .TONIGHT...East wind up to 30 knots with gales to around 40 knots becoming southeast 20 to 25 knots with gales to around 35 knots early in the morning. Chance of thunderstorms in the evening. Rain showers through the night. Chance of thunderstorms after midnight. Waves 7 to 12 feet. Waves occasionally to 16 feet. .WEDNESDAY...South wind 20 to 25 knots with gales to around 35 knots becoming southwest up to 30 knots with gales to around 40 knots in the late morning and afternoon. Chance of rain showers and slight chance of thunderstorms in the morning, then rain showers likely in the afternoon. Waves 7 to 12 feet. Waves occasionally to 16 feet. .WEDNESDAY NIGHT...West wind 20 to 25 knots. Gusts up to 35 knots decreasing to 30 knots in the late evening and overnight. Rain showers likely in the evening, then chance of rain showers after midnight. Waves 7 to 10 feet subsiding to 4 to 7 feet in the late evening and overnight. Waves occasionally to 13 feet. A gale warning may be needed. $$ LSZ142-143-211615- Taconite Harbor to Silver Bay Harbor MN- Silver Bay Harbor to Two Harbors MN- 601 AM CDT Tue May 21 2024 ...SMALL CRAFT ADVISORY IN EFFECT FROM 10 AM THIS MORNING TO 4 PM CDT THIS AFTERNOON... ...GALE WARNING IN EFFECT FROM 4 PM CDT THIS AFTERNOON THROUGH WEDNESDAY EVENING... .TODAY...Northeast wind 5 to 10 knots rising to up to 30 knots with gales to around 35 knots in the late morning and afternoon. Chance of rain showers in the morning, then rain showers and chance of thunderstorms in the afternoon. Waves 1 to 2 feet building to 6 to 9 feet. Waves occasionally to 12 feet. .TONIGHT...Northeast wind up to 30 knots with gales to around 40 knots becoming southwest 20 to 25 knots with gales to around 35 knots early in the morning. Chance of thunderstorms in the evening. Rain showers through the night. Chance of thunderstorms after midnight. Waves 9 to 14 feet. Waves occasionally to 18 feet. .WEDNESDAY...West wind 20 to 25 knots. Gales up to 40 knots decreasing to 35 knots late in the afternoon. Slight chance of thunderstorms in the morning. Chance of rain showers through the day. Waves 8 to 11 feet subsiding to 4 to 7 feet in the late morning and afternoon. Waves occasionally to 15 feet. .WEDNESDAY NIGHT...West wind 15 to 20 knots. Gusts up to 35 knots decreasing to 25 knots. Chance of rain showers through the night. Waves 2 to 4 feet subsiding to 1 to 3 feet after midnight. A gale warning may be needed. $$ LSZ144-145-211615- Two Harbors to Duluth MN-Duluth MN to Port Wing WI- 601 AM CDT Tue May 21 2024 ...DENSE FOG ADVISORY IN EFFECT UNTIL 10 AM CDT THIS MORNING... ...SMALL CRAFT ADVISORY IN EFFECT FROM 10 AM THIS MORNING TO 4 PM CDT THIS AFTERNOON... ...GALE WARNING IN EFFECT FROM 4 PM CDT THIS AFTERNOON THROUGH WEDNESDAY EVENING... .TODAY...Northeast wind 5 to 10 knots rising to up to 30 knots with gales to around 35 knots in the late morning and afternoon. Rain showers likely and slight chance of thunderstorms in the morning, then rain showers and chance of thunderstorms in the afternoon. Waves 1 to 3 feet building to 7 to 10 feet. Waves occasionally to 12 feet. .TONIGHT...Northeast wind up to 30 knots with gales to around 40 knots becoming northwest with gales to around 35 knots early in the morning. Thunderstorms likely in the evening. Rain showers through the night. Chance of thunderstorms after midnight. Waves 8 to 13 feet. Waves occasionally to 17 feet. .WEDNESDAY...West wind 20 to 25 knots. Gales up to 40 knots decreasing to 35 knots late in the afternoon. Chance of rain showers. Waves 7 to 10 feet subsiding to 4 to 6 feet late in the afternoon. Waves occasionally to 12 feet. .WEDNESDAY NIGHT...West 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. Chance of rain showers in the evening. Waves 4 to 6 feet subsiding to 2 to 4 feet after midnight. Waves occasionally to 8 feet. A small craft advisory may be needed. $$ LSZ146-211615- Port Wing to Sand Island WI- 601 AM CDT Tue May 21 2024 ...SMALL CRAFT ADVISORY IN EFFECT FROM 10 AM THIS MORNING TO 4 PM CDT THIS AFTERNOON... ...GALE WARNING IN EFFECT FROM 4 PM CDT THIS AFTERNOON THROUGH WEDNESDAY EVENING... .TODAY...Northeast wind 10 to 15 knots with gusts to around 20 knots rising to 20 to 25 knots with gales to around 35 knots in the afternoon. Chance of rain showers in the morning, then rain showers and chance of thunderstorms in the afternoon. Waves 1 to 2 feet building to 6 to 9 feet. Waves occasionally to 12 feet. .TONIGHT...East wind up to 30 knots with gales to around 35 knots becoming south 20 to 25 knots with gales to around 35 knots early in the morning. Rain showers with thunderstorms likely in the evening, then rain showers likely and chance of thunderstorms after midnight. Waves 7 to 12 feet. Waves occasionally to 16 feet. .WEDNESDAY...Southwest wind up to 30 knots. Gales up to 40 knots decreasing to 35 knots late in the afternoon. Chance of rain showers. Waves 7 to 10 feet. Waves occasionally to 12 feet. .WEDNESDAY NIGHT...West wind 20 to 25 knots. Gusts up to 30 knots. Chance of rain showers in the evening. Waves 4 to 7 feet subsiding to 3 to 5 feet after midnight. Waves occasionally to 9 feet. A small craft advisory may be needed. $$ LSZ147-211615- Sand Island to Bayfield WI- 601 AM CDT Tue May 21 2024 ...SMALL CRAFT ADVISORY IN EFFECT FROM 1 PM CDT THIS AFTERNOON THROUGH WEDNESDAY MORNING... ...GALE WARNING IN EFFECT FROM WEDNESDAY MORNING THROUGH WEDNESDAY EVENING... .TODAY...Northeast wind 10 to 15 knots with gusts to around 20 knots rising to 20 to 25 knots with gales to around 35 knots in the afternoon. Chance of rain showers late in the morning. Rain showers and slight chance of thunderstorms early in the afternoon, then rain showers likely and chance of thunderstorms late in the afternoon. Waves 1 to 2 feet building to 5 to 8 feet. Waves occasionally to 10 feet. .TONIGHT...East wind up to 30 knots with gales to around 35 knots becoming south 20 to 25 knots with gales to around 35 knots early in the morning. Rain showers in the evening. Chance of thunderstorms through the night. Rain showers likely after midnight. Waves 7 to 10 feet. Waves occasionally to 13 feet. A gale warning may be needed. .WEDNESDAY...Southwest wind up to 30 knots. Gales up to 40 knots decreasing to 35 knots late in the afternoon. Chance of rain showers. Waves 4 to 7 feet building to 6 to 9 feet in the late morning and afternoon. Waves occasionally to 12 feet. .WEDNESDAY NIGHT...West wind 15 to 20 knots. Gusts up to 30 knots. Chance of rain showers 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. $$ LSZ150-211615- Outer Apostle Islands Beyond 5 NM from Mainland- 601 AM CDT Tue May 21 2024 ...SMALL CRAFT ADVISORY IN EFFECT FROM 10 AM THIS MORNING TO 4 PM CDT THIS AFTERNOON... ...GALE WARNING IN EFFECT FROM 4 PM CDT THIS AFTERNOON THROUGH WEDNESDAY EVENING... .TODAY...Northeast wind 10 to 15 knots with gusts to around 20 knots rising to 20 to 25 knots with gales to around 35 knots in the afternoon. Chance of rain showers late in the morning. Rain showers likely in the afternoon. Chance of thunderstorms late in the afternoon. Waves 1 to 2 feet building to 6 to 9 feet. Waves occasionally to 11 feet. .TONIGHT...East wind up to 30 knots becoming south 20 to 25 knots early in the morning. Gusts up to 35 knots. Rain showers in the evening. Chance of thunderstorms through the night. Rain showers likely after midnight. Waves 7 to 12 feet. Waves occasionally to 16 feet. .WEDNESDAY...Southwest wind up to 30 knots with gales to around 40 knots. Chance of rain showers. Waves 8 to 11 feet. Waves occasionally to 14 feet. .WEDNESDAY NIGHT...West wind 15 to 20 knots. Gusts up to 35 knots decreasing to 25 knots in the late evening and overnight. Chance of rain showers in the evening. Waves 5 to 8 feet subsiding to 4 to 6 feet after midnight. Waves occasionally to 10 feet. A gale warning may be needed. $$ LSZ121-211615- Chequamegon Bay-Bayfield to Oak Point WI- 601 AM CDT Tue May 21 2024 ...SMALL CRAFT ADVISORY IN EFFECT FROM 1 PM CDT THIS AFTERNOON THROUGH WEDNESDAY MORNING... ...GALE WARNING IN EFFECT FROM WEDNESDAY MORNING THROUGH WEDNESDAY EVENING... .TODAY...Northeast wind 15 to 20 knots with gusts to around 30 knots. Chance of rain showers late in the morning. Rain showers and slight chance of thunderstorms early in the afternoon, then rain showers likely and chance of thunderstorms late in the afternoon. Waves 1 to 3 feet. .TONIGHT...East wind 15 to 20 knots with gusts to around 30 knots becoming south 20 to 25 knots with gusts to around 30 knots early in the morning. Rain showers with thunderstorms likely in the evening, then rain showers likely and chance of thunderstorms after midnight. Waves 2 to 4 feet. .WEDNESDAY...Southwest wind 20 to 25 knots. Gusts up to 35 knots increasing to 40 knots late in the morning, then decreasing to 35 knots in the afternoon. Chance of rain showers. Waves 2 to 4 feet. .WEDNESDAY NIGHT...West wind 15 to 20 knots. Gusts up to 30 knots decreasing to 20 knots. Chance of rain showers in the evening. Waves 1 to 3 feet. $$ LSZ148-211615- Oak Point to Saxon Harbor WI- 601 AM CDT Tue May 21 2024 ...SMALL CRAFT ADVISORY IN EFFECT FROM 1 PM CDT THIS AFTERNOON THROUGH WEDNESDAY MORNING... ...GALE WARNING IN EFFECT FROM WEDNESDAY MORNING THROUGH WEDNESDAY EVENING... .TODAY...Northeast wind 15 to 20 knots with gusts to around 30 knots. Slight chance of rain showers late in the morning. Rain showers and slight chance of thunderstorms early in the afternoon, then rain showers likely and chance of thunderstorms late in the afternoon. Waves 1 to 2 feet building to 4 to 6 feet. Waves occasionally to 8 feet. .TONIGHT...East wind 15 to 20 knots with gusts to around 30 knots becoming south 20 to 25 knots with gales to around 35 knots early in the morning. Rain showers in the evening. Chance of thunderstorms through the night. Rain showers likely after midnight. Waves 5 to 8 feet. Waves occasionally to 11 feet. A gale warning may be needed. .WEDNESDAY...Southwest wind 20 to 25 knots. Gusts up to 35 knots increasing to 40 knots in the late morning and early afternoon, then decreasing to 35 knots late in the afternoon. Chance of rain showers. Waves 4 to 6 feet. Waves occasionally to 8 feet. .WEDNESDAY NIGHT...West wind 15 to 20 knots. Gusts up to 30 knots decreasing to 20 knots. Chance of rain showers in the evening. Waves 3 to 5 feet subsiding to 1 to 3 feet early in the morning. A small craft advisory may be needed. $$ Graphical marine forecasts are available online at: weather.gov/greatlakes KML