FZUS53 KIWX 181440 NSHIWX Nearshore Marine Forecast National Weather Service Northern Indiana 1040 AM EDT Mon May 18 2026 For waters within five nautical miles of shore on Lake Michigan LMZ046-182015- Michigan City IN to New Buffalo MI- 1040 AM EDT Mon May 18 2026 .REST OF TODAY...South winds 10 to 15 knots becoming southwest 15 to 20 knots. Gusts up to 25 knots. Showers likely with a chance of thunderstorms early this afternoon. A chance of showers and thunderstorms late. Waves 1 to 3 feet. .TONIGHT...South winds 10 to 15 knots increasing to 15 to 20 knots. Gusts up to 25 knots. A slight chance of showers and thunderstorms in the evening. Waves 1 to 3 feet. .TUESDAY...South winds 15 to 20 knots becoming southwest. Gusts up to 25 knots. A chance of showers in the morning, then showers likely with a chance of thunderstorms in the afternoon. Waves 1 to 3 feet building to 2 to 4 feet. .TUESDAY NIGHT...West winds 10 to 15 knots becoming north. Showers likely with a chance of thunderstorms in the evening, then a chance of showers overnight. Waves 2 to 3 feet. Winds and waves higher in and near thunderstorms. The water temperature at St. Joseph is 55 degrees and at Michigan City is 53 degrees. $$ LMZ043-182015- New Buffalo MI to St Joseph MI- 1040 AM EDT Mon May 18 2026 .REST OF TODAY...South winds 10 to 15 knots. Gusts up to 25 knots. Showers likely with a chance of thunderstorms early this afternoon. A chance of showers and thunderstorms late. Waves 1 to 3 feet. .TONIGHT...South winds 10 to 15 knots increasing to 15 to 20 knots. Gusts up to 25 knots. A slight chance of showers and thunderstorms in the evening. Waves 1 to 3 feet. .TUESDAY...South winds 15 to 20 knots becoming southwest. Gusts up to 30 knots. A chance of showers in the morning, then showers likely with a chance of thunderstorms in the afternoon. Waves 2 to 4 feet. .TUESDAY NIGHT...West winds 10 to 15 knots becoming north. Showers likely with a chance of thunderstorms in the evening, then a chance of showers overnight. Waves 2 to 4 feet. Winds and waves higher in and near thunderstorms. The water temperature at St. Joseph is 55 degrees and at Michigan City is 53 degrees. $$