Nearshore Marine Forecast
Issued by NWS Milwaukee/Sullivan, WI
Issued by NWS Milwaukee/Sullivan, WI
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522 FZUS53 KMKX 201005 NSHMKX Nearshore Marine Forecast National Weather Service Milwaukee/Sullivan WI 505 AM CDT Wed Aug 20 2025 For waters within five nautical miles of shore on Lake Michigan LMZ643-201600- Sheboygan to Port Washington WI- 505 AM CDT Wed Aug 20 2025 .TODAY...North wind 10 to 15 knots veering northeast in the late morning and early afternoon, then becoming northeast 10 to 15 knots late in the afternoon. Patchy fog in the morning. chance of sprinkles through the day. Waves 1 to 3 feet building to 2 to 4 feet in the late morning and early afternoon, then subsiding to 1 to 3 feet late in the afternoon. .TONIGHT...North wind 15 to 20 knots veering northeast late in the evening, then becoming northeast 15 to 20 knots after midnight easing to 10 to 15 knots early in the morning. Mostly clear. Waves 3 to 4 feet. .THURSDAY...Northeast wind 10 to 15 knots easing to 5 to 10 knots late in the morning, then becoming northeast 5 to 10 knots in the afternoon. Sunny. Waves 2 to 4 feet subsiding to 1 to 2 feet in the late morning and afternoon. .THURSDAY NIGHT...North wind 5 to 10 knots becoming northeast after midnight, then backing west early in the morning. Mostly clear. Waves around 1 foot. $$ LMZ644-201600- Port Washington to North Point Light WI- 505 AM CDT Wed Aug 20 2025 ...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH LATE TONIGHT... .TODAY...North wind 10 to 15 knots veering northeast in the late morning and early afternoon, then becoming northeast 10 to 15 knots late in the afternoon. Chance of sprinkles through the day. Waves 2 to 4 feet. .TONIGHT...North wind 15 to 20 knots veering northeast late in the evening, then becoming northeast 15 to 20 knots after midnight easing to 10 to 15 knots early in the morning. Mostly clear. Waves 3 to 4 feet. .THURSDAY...Northeast wind 10 to 15 knots easing to 5 to 10 knots early in the afternoon, then becoming northeast 5 to 10 knots late in the afternoon. Sunny. Waves 2 to 4 feet subsiding to 1 to 2 feet in the afternoon. .THURSDAY NIGHT...North wind 5 to 10 knots veering northeast after midnight, then becoming northwest early in the morning. Mostly clear. Waves around 1 foot. $$ LMZ645-201600- North Point Light to Wind Point WI- 505 AM CDT Wed Aug 20 2025 ...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH LATE TONIGHT... .TODAY...North wind 10 to 20 knots veering northeast 15 to 20 knots late in the morning, then easing to 10 to 15 knots early in the afternoon becoming north 15 to 20 knots late in the afternoon. Chance of sprinkles through the day. Waves 2 to 4 feet. .TONIGHT...North wind 15 to 20 knots veering northeast after midnight, then easing to 10 to 15 knots early in the morning. Mostly clear. Waves 3 to 4 feet building to 4 to 6 feet in the late evening and early morning, then subsiding to 3 to 4 feet early in the morning. .THURSDAY...Northeast wind 10 to 15 knots easing to 5 to 10 knots late in the afternoon. Sunny. Waves 3 to 4 feet subsiding to 1 to 2 feet in the afternoon. .THURSDAY NIGHT...North wind 5 to 10 knots veering northeast late in the evening, then becoming northeast 5 to 10 knots after midnight backing north early in the morning. Mostly clear. Waves 1 to 2 feet. $$ LMZ646-201600- Wind Point WI to Winthrop Harbor IL- 505 AM CDT Wed Aug 20 2025 ...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH LATE TONIGHT... .TODAY...North wind 10 to 20 knots veering northeast 15 to 20 knots late in the morning, then easing to 10 to 15 knots early in the afternoon becoming north 15 to 20 knots late in the afternoon. Chance of sprinkles in the morning. Chance of sprinkles in the afternoon. Waves 2 to 4 feet. .TONIGHT...North wind 15 to 20 knots veering northeast late in the evening, then becoming northeast 15 to 20 knots after midnight becoming east 10 to 15 knots early in the morning. Clear. Waves 3 to 4 feet building to 3 to 5 feet late in the evening, then building to 4 to 6 feet after midnight subsiding to 3 to 4 feet early in the morning. .THURSDAY...Northeast wind 10 to 15 knots easing to 5 to 10 knots late in the afternoon. Sunny. Waves 3 to 4 feet subsiding to 1 to 3 feet late in the afternoon. .THURSDAY NIGHT...North wind 5 to 10 knots veering northeast after midnight. Mostly clear. Waves 1 to 2 feet. $$ See Lake Michigan Open Waters Forecast for Friday through Sunday.