FZUS53 KIWX 210813 NSHIWX Nearshore Marine Forecast National Weather Service Northern Indiana 413 AM EDT Sat Mar 21 2026 For waters within five nautical miles of shore on Lake Michigan LMZ043-046-211415- New Buffalo MI to St Joseph MI-Michigan City IN to New Buffalo MI- 413 AM EDT Sat Mar 21 2026 .TODAY...East winds 10 knots or less becoming south 10 to 15 knots. Partly sunny this morning, then clearing. Waves 1 to 2 feet. .TONIGHT...Southwest winds 10 to 15 knots. Partly cloudy. Waves 1 to 3 feet. .SUNDAY...Northwest winds 10 to 15 knots becoming north and increasing to 15 to 25 knots. Gusts up to 30 knots. A chance of rain showers. Waves 1 to 2 feet building to 5 to 8 feet. A small craft advisory may be needed. .SUNDAY NIGHT...North winds 15 to 25 knots. Gusts up to 30 knots. A chance of rain showers in the evening. Waves 6 to 10 feet subsiding to 5 to 8 feet. A small craft advisory may be needed. The water temperature at St. Joseph is 39 degrees and at Michigan City is 39 degrees. $$