Marine warning issued for Lake Michigan near South Haven Emergency Information 07/24/2025 09:10 AM (PDT) South Haven, MI 49090Stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Take extra precautions when outside. Wear lightweight and loose-fitting clothing. Try to limit strenuous activities to early morning or evening. Take action when you see symptoms of heat exhaustion and need stroke. Here is the near-shore forecast for waters within five nautical miles from shore for the following. South Haven to Holland, Michigan. Rest of today, Southwest winds 15 to 20 knots. Rain showers likely end a chance of thunderstorms in the afternoon. Waves 2 to 4 feet. Tonight, west winds 10 to 15 knots. Mostly cloudy with a chance of showers and thunderstorms. Waves 1 to 2 feet. Friday, northwest winds 5 to 10 knots. Partly sunny with a slight chance of showers and thunderstorms. Waves one foot or less. Friday night, north winds 5 to 10 knots veering southeast late at night, then veering south or daybreak. Mostly cloudy with the chance of showers and thunderstorms. Waves one foot or less. Saturday, south winds 10 to 15 knots veering southwest late in the day. Rain showers likely and a chance of thunderstorms. Waves around one foot. Sunday, west winds 5 to 50 knots. Sunny. Waves 1 to 2 feet. Monday, southwest winds 10 to 50 knots. Sunny. Waves 1 to 2 feet. Here is the near shore forecast for waters within 5 nautical miles from shore for the following St. Joseph to South Haven, Michigan. Rest of today. Southwest winds 10 to 50 knots. Rain showers likely end a chance of thunderstorms in the afternoon. Waves 1 to 3 feet. Tonight, west winds 5 to 10 knots. Rain showers likely and a chance of thunderstorms. Waves around 1 foot. Friday, northwest winds 5 to 10 knots. Partly sunny with the chance of rain showers and a slight chance of thunderstorms. Waves one foot or less. Friday night, northeast winds 5 to 10 knots varying south after midnight. Partly cloudy with a chance of showers and thunderstorms. Waves less than one foot. Saturday, south winds 10 to 15 knots varying southwest late in the day. Rain showers likely and a chance of thunderstorms. Waves one foot or less. Sunday. Northwest winds 5 to 10 knots. Sunny. Waves around one foot. Monday. Southwest winds 10 to 50 knots. Sunny. Waves around one foot.