National Weather Service Marine Forecast FZUS53 KIWX

FZUS53 KIWX 211430
NSHIWX

Nearshore Marine Forecast
National Weather Service Northern Indiana
1030 AM EDT Tue Apr 21 2026

For waters within five nautical miles of shore on Lake Michigan

LMZ046-212015
Michigan City IN to New Buffalo MI
1030 AM EDT Tue Apr 21 2026

SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 PM EDT THIS EVENING

THIS AFTERNOON
Southwest winds 10 to 15 knots. Gusts up to 25 knots. A chance of showers with a slight chance of thunderstorms late. Waves 1 to 2 feet.

TONIGHT
West winds 5 to 10 knots becoming northwest. A chance of showers and thunderstorms in the evening, then a slight chance of showers overnight. Waves 2 feet or less.

WEDNESDAY
Northeast winds less than 10 knots. Patchy fog in the morning. Waves 1 foot or less.

WEDNESDAY NIGHT
Northeast winds 10 knots or less becoming south. Partly cloudy. Waves 1 foot or less.

Winds and waves higher in and near thunderstorms.

The water temperature at St. Joseph is 50 degrees and at Michigan City is 48 degrees.

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LMZ043-212015
New Buffalo MI to St Joseph MI
1030 AM EDT Tue Apr 21 2026

SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 PM EDT THIS EVENING

THIS AFTERNOON
South winds 10 to 15 knots becoming southwest. Gusts up to 25 knots. A chance of showers with a slight chance of thunderstorms late. Waves 1 to 3 feet.

TONIGHT
Southwest winds 10 knots or less becoming north. A chance of showers and thunderstorms in the evening. Waves 2 feet or less.

WEDNESDAY
Northeast winds less than 10 knots becoming northwest. Patchy fog in the morning. Waves 1 foot or less.

WEDNESDAY NIGHT
Northeast winds 10 knots or less becoming south. Partly cloudy. Waves 1 foot or less.

Winds and waves higher in and near thunderstorms.

The water temperature at St. Joseph is 50 degrees and at Michigan City is 48 degrees.