FZUS53 KIWX 230744 NSHIWX Nearshore Marine Forecast National Weather Service Northern Indiana 344 AM EDT Sun Aug 23 2026 For waters within five nautical miles of shore on Lake Michigan LMZ046-231415- Michigan City IN to New Buffalo MI- 344 AM EDT Sun Aug 23 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING... .TODAY...Northwest winds 10 to 20 knots becoming north. Gusts up to 25 knots. A slight chance of waterspouts early. A slight chance of showers early. Waves 2 to 4 feet building to 3 to 5 feet. .TONIGHT...North winds 10 knots or less becoming northwest. Mostly clear. Waves 2 to 4 feet. .MONDAY...West winds 10 knots or less becoming north. Sunny. Waves around 2 feet. .MONDAY NIGHT...North winds less than 10 knots. Mostly clear. Waves 1 to 2 feet. The water temperature at Michigan City is 71 degrees. $$ LMZ043-231415- New Buffalo MI to St Joseph MI- 344 AM EDT Sun Aug 23 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING... .TODAY...Northwest winds 10 to 15 knots increasing to 15 to 20 knots. Gusts up to 25 knots. A slight chance of waterspouts early. A slight chance of showers early. Waves 2 to 4 feet building to 3 to 6 feet. .TONIGHT...North winds 5 to 15 knots becoming northeast less than 10 knots. Mostly clear. Waves 3 to 5 feet subsiding to 2 to 4 feet. .MONDAY...Northwest winds 10 knots or less. Sunny. Waves 2 to 3 feet. .MONDAY NIGHT...North winds less than 10 knots. Mostly clear. Waves 1 to 2 feet. The water temperature at Michigan City is 71 degrees. $$ MCD