FZUS53 KDTX 151857 NSHDTX Nearshore Marine Forecast for Michigan National Weather Service Detroit/Pontiac MI 257 PM EDT Wed Apr 15 2026 For waters within five nautical miles of shore Waves are the significant wave height - the average of the highest 1/3 of the wave spectrum. Occasional wave height is the average of the highest 1/10 of the wave spectrum. LHZ422-160300- Inner Saginaw Bay SW of Point Au Gres to Bay Port MI- 257 PM EDT Wed Apr 15 2026 .TONIGHT...Southwest winds 5 to 10 knots. Mostly cloudy with a chance of showers and thunderstorms. Waves 2 feet or less. .THURSDAY...Southeast winds 5 to 10 knots becoming north 10 to 15 knots in the late morning and early afternoon, then veering to the northeast early in the afternoon. Mostly cloudy. A chance of thunderstorms in the morning. Rain showers likely. A slight chance of thunderstorms in the afternoon. Waves 2 feet or less. .THURSDAY NIGHT...Northwest winds 10 to 15 knots becoming north 5 to 10 knots in the late evening and overnight. Mostly cloudy early in the evening becoming partly cloudy. A chance of showers early in the evening. Waves 2 feet or less. .FRIDAY...East winds 5 to 10 knots. Partly cloudy. Waves 2 feet or less. See Lake Huron Open Lake Forecast for days 3 through 5. $$ LHZ421-160300- Outer Saginaw Bay SW of Alabaster to Port Austin MI to Inner Saginaw Bay- 257 PM EDT Wed Apr 15 2026 .TONIGHT...Southwest winds 5 to 10 knots. A chance of showers and thunderstorms in the evening, then showers and a chance of thunderstorms after midnight. Some thunderstorms may produce heavy rainfall. Waves 2 feet or less. .THURSDAY...South winds 5 to 10 knots veering to the north in the late morning and early afternoon, then becoming northeast 10 to 15 knots early in the afternoon. Mostly cloudy. Light showers likely and a chance of thunderstorms early in the morning, then showers likely and a slight chance of thunderstorms in the late morning and afternoon. Some thunderstorms may produce heavy rainfall early in the morning. Some thunderstorms may produce heavy rainfall in the late morning and afternoon. Waves 2 feet or less. .THURSDAY NIGHT...North winds 5 to 10 knots. Mostly cloudy early in the evening becoming partly cloudy. Waves 2 feet or less. .FRIDAY...Northeast winds 5 to 10 knots veering to the east early in the afternoon. Partly cloudy. Waves 2 feet or less. See Lake Huron Open Lake Forecast for days 3 through 5. $$ LHZ441-160300- Port Austin to Harbor Beach MI- 257 PM EDT Wed Apr 15 2026 .TONIGHT...South winds 5 to 10 knots. A chance of showers and thunderstorms in the evening, then showers and a chance of thunderstorms after midnight. Waves 2 feet or less. .THURSDAY...South winds 5 to 10 knots veering to the west in the late morning and early afternoon, then becoming northwest 10 to 15 knots early in the afternoon. Mostly cloudy. A chance of thunderstorms in the morning. Rain showers likely. A slight chance of thunderstorms in the afternoon. Waves 2 feet or less. .THURSDAY NIGHT...Northwest winds 5 to 10 knots. Mostly cloudy early in the evening becoming partly cloudy. Waves 2 feet or less. .FRIDAY...North winds 5 to 10 knots veering to the east in the late morning and afternoon. Partly cloudy. Waves 2 feet or less. See Lake Huron Open Lake Forecast for days 3 through 5. $$ LHZ442-160300- Harbor Beach to Port Sanilac MI- 257 PM EDT Wed Apr 15 2026 .TONIGHT...South winds 5 to 10 knots. A chance of showers and thunderstorms in the evening, then showers and a chance of thunderstorms after midnight. Waves 2 feet or less. .THURSDAY...South winds 5 to 10 knots becoming northwest 10 to 15 knots early in the afternoon. Mostly cloudy. Rain showers likely and a chance of thunderstorms. Waves 2 feet or less. .THURSDAY NIGHT...Northwest winds 5 to 10 knots. Mostly cloudy early in the evening becoming partly cloudy. Waves 2 feet or less. .FRIDAY...North winds 5 to 10 knots veering to the east in the late morning and afternoon. Partly cloudy. Waves 2 feet or less. See Lake Huron Open Lake Forecast for days 3 through 5. $$ LHZ443-160300- Port Sanilac to Port Huron MI- 257 PM EDT Wed Apr 15 2026 .TONIGHT...Southwest winds 5 to 10 knots becoming south 10 to 15 knots after midnight. Light showers and a chance of thunderstorms. Some thunderstorms may produce heavy rainfall. Waves 2 feet or less. .THURSDAY...South winds 10 to 15 knots veering to the west early in the afternoon. Light showers likely and a slight chance of thunderstorms in the morning, then showers and a chance of thunderstorms in the afternoon. Some thunderstorms may produce heavy rainfall until late afternoon. Some thunderstorms may produce heavy rainfall early in the afternoon. Waves 2 feet or less. .THURSDAY NIGHT...Northwest winds 10 to 15 knots becoming north 5 to 10 knots in the late evening and overnight. Mostly cloudy until early morning becoming partly cloudy. Waves 2 feet or less. .FRIDAY...North winds 5 to 10 knots veering to the east in the late morning and afternoon. Partly cloudy. Waves 2 feet or less. See Lake Huron Open Lake Forecast for days 3 through 5. $$ LEZ444-160300- Michigan Waters of Lake Erie from Detroit River to North Cape MI- 257 PM EDT Wed Apr 15 2026 ...SEVERE THUNDERSTORM WATCH 120 IN EFFECT UNTIL 9 PM EDT THIS EVENING... .TONIGHT...Southwest winds 10 to 15 knots. A chance of showers and thunderstorms in the evening, then showers and a chance of thunderstorms after midnight. Some thunderstorms may produce heavy rainfall. Waves 2 feet or less. .THURSDAY...Southwest winds 10 to 15 knots. Mostly cloudy until late afternoon becoming partly cloudy. Light showers likely and a chance of thunderstorms. Some thunderstorms may produce heavy rainfall early in the morning. Some thunderstorms may produce heavy rainfall in the late morning and afternoon. Waves 1 to 3 feet. .THURSDAY NIGHT...West winds 10 to 15 knots becoming northwest 5 to 10 knots in the late evening and overnight. Partly cloudy. A chance of thunderstorms early in the evening. Some thunderstorms may produce heavy rainfall early in the evening. Waves 2 feet or less. .FRIDAY...North winds 5 to 10 knots veering to the east in the late morning and afternoon. Partly cloudy. Waves 2 feet or less. See Lake Erie Open Lake Forecast for days 3 through 5. The water temperature at Belle Isle is 49 degrees. $$ KDK You can obtain your latest National Weather Service forecasts online a www.weather.gov/greatlakes