Nearshore Marine Forecast
Issued by NWS Duluth, MN
Issued by NWS Duluth, MN
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481 FZUS53 KDLH 181942 NSHDLH Nearshore Marine Forecast National Weather Service Duluth MN 242 PM CDT Wed Sep 18 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. LSZ140-141-190415- Grand Portage to Grand Marais MN- Grand Marais to Taconite Harbor MN- 242 PM CDT Wed Sep 18 2024 .TONIGHT...East wind 5 to 10 knots. Partly cloudy in the evening then becoming mostly cloudy. Waves 1 foot or less. .THURSDAY...East wind 5 to 10 knots. Gusts up to 20 knots late in the afternoon. Slight chance of showers through the day. Slight chance of thunderstorms in the afternoon. Waves 1 to 2 feet. .THURSDAY NIGHT...East wind 5 to 10 knots with gusts to around 20 knots becoming south 10 to 15 knots with gusts to around 25 knots in the late evening and overnight. Showers in the evening. Chance of thunderstorms through the night. Chance of showers after midnight. Waves 1 to 2 feet building to 1 to 3 feet in the late evening and overnight. .FRIDAY...Southwest wind 10 to 15 knots. Gusts up to 20 knots in the afternoon. Mostly sunny. Waves 1 to 3 feet. $$ LSZ142-143-190415- Taconite Harbor to Silver Bay Harbor MN- Silver Bay Harbor to Two Harbors MN- 242 PM CDT Wed Sep 18 2024 .TONIGHT...East wind 5 to 10 knots. Slight chance of showers late in the evening. Chance of showers and slight chance of thunderstorms late in the night. Waves 1 foot or less. .THURSDAY...East wind 5 to 10 knots. Gusts up to 20 knots late in the afternoon. Slight chance of thunderstorms in the morning. Chance of showers through the day. Chance of thunderstorms in the afternoon. Waves 1 to 2 feet. .THURSDAY NIGHT...Northeast wind 5 to 10 knots becoming southwest 10 to 15 knots in the late evening and overnight. Showers likely and chance of thunderstorms through the night. Waves 1 to 2 feet. .FRIDAY...Southwest wind 5 to 10 knots. Gusts up to 20 knots early in the afternoon. Mostly sunny. Waves 1 to 2 feet. $$ LSZ144-145-190415- Two Harbors to Duluth MN-Duluth MN to Port Wing WI- 242 PM CDT Wed Sep 18 2024 .TONIGHT...Southeast wind 5 to 10 knots. Slight chance of showers in the late evening and early morning. Slight chance of thunderstorms after midnight. Chance of showers late in the night. Waves 1 to 2 feet. .THURSDAY...Southeast wind 10 to 15 knots. Gusts up to 20 knots in the late morning and afternoon. Chance of showers and thunderstorms. Waves 1 to 2 feet. .THURSDAY NIGHT...South wind 10 to 15 knots with gusts to around 20 knots becoming southwest with gusts to around 20 knots in the late evening and overnight. Showers likely and chance of thunderstorms in the evening. Waves 1 to 2 feet. .FRIDAY...West wind 5 to 10 knots. Sunny. Waves 1 to 2 feet. $$ LSZ146-190415- Port Wing to Sand Island WI- 242 PM CDT Wed Sep 18 2024 .TONIGHT...Southeast wind 5 to 10 knots. Gusts up to 20 knots after midnight. Slight chance of showers late in the evening. Slight chance of showers and thunderstorms late in the night. Waves 1 foot or less. .THURSDAY...Southeast wind 5 to 10 knots. Gusts up to 20 knots late in the afternoon. Chance of showers and slight chance of thunderstorms through the day. Waves 1 foot or less. .THURSDAY NIGHT...South wind 10 knots with gusts to around 20 knots becoming southwest with gusts to around 20 knots in the late evening and overnight. Showers likely and chance of thunderstorms through the night. Waves 1 foot or less. .FRIDAY...Southwest wind 5 to 10 knots. Gusts up to 20 knots in the afternoon. Sunny. Waves 1 to 2 feet. $$ LSZ147-190415- Sand Island to Bayfield WI- 242 PM CDT Wed Sep 18 2024 .TONIGHT...South wind 5 to 10 knots. Partly cloudy then becoming mostly cloudy late in the evening then becoming partly cloudy then becoming mostly cloudy late in the night. Waves 1 foot or less. .THURSDAY...South wind 5 to 10 knots. Gusts up to 20 knots in the late morning and afternoon. Slight chance of thunderstorms in the morning. Chance of showers through the day. Chance of thunderstorms in the afternoon. Waves 1 foot or less. .THURSDAY NIGHT...Southwest wind 5 to 10 knots. Gusts up to 20 knots until early morning. Thunderstorms likely in the evening. Showers likely through the night. Waves 1 foot or less. .FRIDAY...Southwest wind 5 to 10 knots. Gusts up to 20 knots early in the afternoon. Sunny. Waves 1 to 2 feet. $$ LSZ150-190415- Outer Apostle Islands Beyond 5 NM from Mainland- 242 PM CDT Wed Sep 18 2024 .TONIGHT...South wind 10 to 15 knots with gusts to around 20 knots. Partly cloudy then becoming mostly cloudy late in the evening then becoming partly cloudy then becoming mostly cloudy late in the night. Waves 1 to 2 feet. .THURSDAY...South wind 10 to 15 knots becoming southeast early in the afternoon, then rising to 10 to 15 knots late in the afternoon. Gusts up to 20 knots. Slight chance of thunderstorms in the morning. Chance of showers through the day. Chance of thunderstorms in the afternoon. Waves 1 to 2 feet. .THURSDAY NIGHT...South wind 10 to 15 knots with gusts to around 25 knots becoming southwest with gusts to around 20 knots early in the morning. Showers likely and chance of thunderstorms in the evening, then slight chance of showers and thunderstorms after midnight. Waves 1 to 2 feet building to 1 to 3 feet in the late evening and early morning, then subsiding to 1 to 2 feet early in the morning. .FRIDAY...Southwest wind 5 to 10 knots. Sunny. Waves 1 to 2 feet. $$ LSZ121-190415- Chequamegon Bay-Bayfield to Oak Point WI- 242 PM CDT Wed Sep 18 2024 .TONIGHT...South wind 5 to 10 knots. Mostly cloudy then becoming partly cloudy after midnight then becoming mostly cloudy. Waves 1 foot or less. .THURSDAY...South wind 10 to 15 knots with gusts to around 20 knots. Slight chance of thunderstorms in the morning. Chance of showers through the day. Chance of thunderstorms in the afternoon. Waves 1 foot or less. .THURSDAY NIGHT...South wind 10 to 15 knots. Gusts up to 25 knots. Thunderstorms likely in the evening. Showers likely through the night. Waves 1 foot or less. .FRIDAY...Southwest wind 5 to 10 knots becoming west late in the afternoon. Sunny. Waves 1 foot or less. $$ LSZ148-190415- Oak Point to Saxon Harbor WI- 242 PM CDT Wed Sep 18 2024 .TONIGHT...South wind 5 to 10 knots. Gusts up to 20 knots late in the night. Partly cloudy then becoming mostly cloudy late in the evening then becoming partly cloudy then becoming mostly cloudy late in the night. Waves 1 foot or less. .THURSDAY...South wind 10 to 15 knots. Gusts up to 20 knots. Slight chance of thunderstorms in the morning. Chance of showers through the day. Chance of thunderstorms in the afternoon. Waves 1 to 2 feet. .THURSDAY NIGHT...South wind 10 to 15 knots. Gusts up to 25 knots decreasing to 20 knots in the late evening and overnight. Showers likely in the evening. Chance of thunderstorms through the night. Slight chance of showers after midnight. Waves 1 to 2 feet. .FRIDAY...Southwest wind 5 to 10 knots becoming west late in the afternoon. Sunny. Waves 1 foot or less. $$ Graphical marine forecasts are available online at: weather.gov/greatlakes Levens