FZUS53 KDLH 222147 NSHDLH Nearshore Marine Forecast National Weather Service Duluth MN 447 PM CDT Fri May 22 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. LSZ140-230400- Grand Portage to Grand Marais MN- 447 PM CDT Fri May 22 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH SATURDAY MORNING... .TONIGHT...Northeast wind 15 to 20 knots. Gusts up to 30 knots decreasing to 20 knots. Chance of rain showers late in the night. Waves 3 to 5 feet. .SATURDAY...Northeast wind 10 to 15 knots. Gusts up to 25 knots decreasing to 20 knots in the late morning and afternoon. Rain showers in the morning, then rain showers likely in the afternoon. Waves 2 to 4 feet subsiding to 1 to 3 feet late in the afternoon. .SATURDAY NIGHT...Northeast wind 5 to 10 knots becoming north early in the morning. Slight chance of rain showers. Waves 1 to 3 feet. .SUNDAY...Southwest wind 5 to 10 knots. Partly sunny. Waves 1 to 2 feet. $$ LSZ141-230400- Grand Marais to Taconite Harbor MN- 447 PM CDT Fri May 22 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH SATURDAY MORNING... .TONIGHT...Northeast wind 15 to 20 knots. Gusts up to 35 knots decreasing to 25 knots. Chance of rain showers after midnight. Waves 3 to 5 feet. Waves occasionally to 7 feet. .SATURDAY...Northeast wind 15 to 20 knots. Gusts up to 25 knots decreasing to 20 knots late in the afternoon. Rain showers through the day. Waves 2 to 4 feet subsiding to 1 to 3 feet late in the afternoon. .SATURDAY NIGHT...Northeast wind 5 to 10 knots with gusts to around 20 knots in the evening becoming variable 10 knots or less. Slight chance of rain showers in the evening. Waves 1 to 2 feet. .SUNDAY...Variable winds 10 knots or less becoming southwest 5 knots in the late morning and afternoon. Partly sunny. Waves 1 to 2 feet. $$ LSZ142-230400- Taconite Harbor to Silver Bay Harbor MN- 447 PM CDT Fri May 22 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH SATURDAY MORNING... .TONIGHT...Northeast wind 15 to 20 knots. Gusts up to 30 knots decreasing to 25 knots after midnight. Chance of rain showers after midnight. Rain showers likely late in the night. Waves 4 to 6 feet. Waves occasionally to 7 feet. .SATURDAY...Northeast wind 10 to 15 knots. Gusts up to 25 knots decreasing to 20 knots late in the afternoon. Rain showers in the morning, then slight chance of rain showers in the afternoon. Waves 2 to 4 feet subsiding to 1 to 3 feet late in the afternoon. .SATURDAY NIGHT...Northeast wind 5 to 10 knots with gusts to around 20 knots in the evening becoming variable 10 knots or less. Mostly cloudy. Waves 1 to 2 feet. .SUNDAY...Variable winds 10 knots or less becoming southwest 5 knots in the late morning and early afternoon, then becoming variable 10 knots or less late in the afternoon. Partly sunny. Waves 1 foot or less. $$ LSZ143-230400- Silver Bay Harbor to Two Harbors MN- 447 PM CDT Fri May 22 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 AM CDT SATURDAY... .TONIGHT...Northeast wind 20 to 25 knots with gales to around 35 knots easing to 15 to 20 knots with gusts to around 25 knots after midnight. Slight chance of rain showers late in the evening. Chance of rain showers after midnight. Slight chance of thunderstorms late in the night. Waves 4 to 6 feet. Waves occasionally to 8 feet. .SATURDAY...Northeast wind 15 to 20 knots with gusts to around 25 knots. Rain showers in the morning, then slight chance of rain showers in the afternoon. Waves 2 to 4 feet subsiding to 1 to 3 feet late in the afternoon. A small craft advisory may be needed. .SATURDAY NIGHT...Northeast wind 10 to 15 knots with gusts to around 25 knots easing to 5 knots late in the evening, then becoming variable 10 knots or less after midnight. Mostly cloudy. Waves 1 to 3 feet. .SUNDAY...Variable winds 10 knots or less becoming southwest 5 knots in the late morning and afternoon. Mostly sunny. Waves 1 foot or less. $$ LSZ144-230400- Two Harbors to Duluth MN- 447 PM CDT Fri May 22 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 AM CDT SATURDAY... .TONIGHT...Northeast wind 20 to 25 knots. Gusts up to 35 knots decreasing to 25 knots after midnight. Slight chance of rain showers in the evening, then rain showers likely and slight chance of thunderstorms after midnight. Waves 4 to 6 feet subsiding to 2 to 4 feet late in the night. Waves occasionally to 8 feet. .SATURDAY...Northeast wind 15 to 20 knots with gusts to around 25 knots. Rain showers likely and slight chance of thunderstorms in the morning. Waves 2 to 4 feet subsiding to 1 to 3 feet late in the afternoon. .SATURDAY NIGHT...Northeast wind 5 to 10 knots with gusts to around 20 knots in the evening becoming variable 10 knots or less. Mostly cloudy. Waves 1 to 2 feet. .SUNDAY...Variable winds 10 knots or less becoming southwest 5 knots in the late morning and afternoon. Slight chance of showers and thunderstorms in the afternoon. Waves 1 foot or less. $$ LSZ145-230400- Duluth MN to Port Wing WI- 447 PM CDT Fri May 22 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 AM CDT SATURDAY... .TONIGHT...Northeast wind 20 to 25 knots. Gusts up to 35 knots decreasing to 30 knots late in the evening, then then 25 knots late in the night. Slight chance of rain showers late in the evening. Chance of rain showers and slight chance of thunderstorms after midnight. Waves 4 to 6 feet subsiding to 2 to 4 feet late in the night. Waves occasionally to 8 feet. .SATURDAY...Northeast wind 10 to 15 knots. Gusts up to 20 knots increasing to 25 knots late in the afternoon. Rain showers likely and slight chance of thunderstorms in the morning, then slight chance of rain showers in the afternoon. Waves 2 to 4 feet subsiding to 1 to 3 feet late in the afternoon. .SATURDAY NIGHT...Northeast wind 5 to 10 knots with gusts to around 20 knots in the evening becoming variable 10 knots or less. Mostly cloudy. Waves 1 to 2 feet. .SUNDAY...Variable winds 10 knots or less becoming southwest 5 knots in the late morning and afternoon. Slight chance of showers and thunderstorms in the afternoon. Waves 1 foot or less. $$ LSZ146-230400- Port Wing to Sand Island WI- 447 PM CDT Fri May 22 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 AM CDT SATURDAY... .TONIGHT...East wind 15 to 20 knots. Gusts up to 25 knots decreasing to 20 knots late in the night. Slight chance of rain showers late in the evening. Chance of rain showers and slight chance of thunderstorms after midnight. Waves 3 to 5 feet. Waves occasionally to 7 feet. .SATURDAY...Northeast wind 10 to 15 knots. Gusts up to 20 knots in the afternoon. Rain showers and slight chance of thunderstorms in the morning, then slight chance of rain showers in the afternoon. Waves 1 to 3 feet. .SATURDAY NIGHT...Northeast wind 5 to 10 knots with gusts to around 20 knots in the evening becoming variable 10 knots or less. Mostly cloudy. Waves 1 to 2 feet. .SUNDAY...Variable winds 10 knots or less becoming southwest 5 knots in the late morning and early afternoon, then becoming south late in the afternoon. Mostly sunny. Waves 1 foot or less. $$ LSZ147-230400- Sand Island to Bayfield WI- 447 PM CDT Fri May 22 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 AM CDT SATURDAY... .TONIGHT...East wind 10 to 15 knots with gusts to around 25 knots. Chance of rain showers and slight chance of thunderstorms after midnight. Waves 3 to 5 feet subsiding to 1 to 3 feet late in the night. Waves occasionally to 7 feet. .SATURDAY...East wind 5 to 10 knots. Gusts up to 20 knots early in the morning. Rain showers likely in the morning, then chance of rain showers in the afternoon. Waves 1 to 2 feet. .SATURDAY NIGHT...Northeast wind 5 to 10 knots early in the evening becoming variable 10 knots or less. Chance of rain showers in the evening. Waves 1 to 2 feet. .SUNDAY...Variable winds 10 knots or less becoming south 5 knots in the afternoon. Mostly cloudy in the morning then becoming mostly sunny. Waves 1 foot or less. $$ LSZ150-230400- Outer Apostle Islands Beyond 5 NM from Mainland- 447 PM CDT Fri May 22 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 AM CDT SATURDAY... .TONIGHT...East wind 15 to 20 knots. Gusts up to 30 knots decreasing to 25 knots after midnight. Chance of rain showers and slight chance of thunderstorms after midnight. Waves 4 to 6 feet. Waves occasionally to 7 feet. .SATURDAY...East wind 10 to 15 knots. Gusts up to 25 knots. Chance of rain showers. Waves 2 to 4 feet subsiding to 1 to 3 feet in the afternoon. .SATURDAY NIGHT...Northeast wind 5 to 10 knots becoming west after midnight. Slight chance of rain showers in the evening. Waves 1 to 2 feet. .SUNDAY...Southwest wind 5 knots becoming south in the afternoon. Mostly cloudy in the morning then becoming mostly sunny. Waves 1 foot or less. $$ LSZ121-230400- Chequamegon Bay-Bayfield to Oak Point WI- 447 PM CDT Fri May 22 2026 .TONIGHT...East wind 10 to 15 knots. Gusts up to 25 knots. Chance of rain showers and slight chance of thunderstorms after midnight. Waves 1 to 2 feet. .SATURDAY...East wind 5 to 10 knots becoming southeast in the afternoon. Rain showers likely and slight chance of thunderstorms in the morning, then chance of rain showers in the afternoon. Waves 1 foot or less. .SATURDAY NIGHT...East wind 5 to 10 knots becoming north late in the evening, then becoming variable 10 knots or less after midnight. Chance of rain showers in the evening. Waves 1 foot or less. .SUNDAY...Variable winds 10 knots or less becoming southwest 5 knots in the late morning and afternoon. Slight chance of rain showers in the afternoon. Waves 1 foot or less. $$ LSZ148-230400- Oak Point to Saxon Harbor WI- 447 PM CDT Fri May 22 2026 .TONIGHT...East wind 10 to 15 knots. Gusts up to 25 knots. Chance of rain showers and slight chance of thunderstorms after midnight. Waves 2 to 4 feet subsiding to 1 to 3 feet after midnight. .SATURDAY...East wind 5 to 10 knots. Gusts up to 20 knots in the morning. Slight chance of thunderstorms in the morning. Rain showers likely through the day. Waves 1 to 2 feet. .SATURDAY NIGHT...East wind 5 to 10 knots in the evening becoming variable 10 knots or less. Slight chance of rain showers in the evening. Waves 1 foot or less. .SUNDAY...Variable winds 10 knots or less becoming southwest 5 knots late in the morning, then becoming northeast early in the afternoon becoming east late in the afternoon. Slight chance of rain showers in the afternoon. Waves 1 foot or less. $$ Graphical marine forecasts are available online at: weather.gov/greatlakes WFO DLH