FZUS63 KDTX 300758 GLFSC Lake St Clair Forecast National Weather Service Detroit/Pontiac MI 358 AM EDT Mon Mar 30 2026 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. .SYNOPSIS...A front stalls around central Lake Huron today with southwest wind over southern Lower Mi and the south half of Lake Huron. Wind turns from the NE across central and northern Lake Huron. Showers and thunderstorms develop along and near this frontal zone tonight and Tuesday, with potential for strong to severe storms as a strong cold front sweeps across the Great Lakes Tuesday night. Marine conditions turn colder and remain unsettled mid to late week. LCZ460-301600- Lake St Clair- 358 AM EDT Mon Mar 30 2026 .TODAY...Southwest winds 10 to 15 knots. Partly sunny. Waves 2 feet or less. .TONIGHT...Southwest winds 5 to 10 knots becoming south 10 to 15 knots in the late evening and overnight. Mostly cloudy. A chance of light rain by midnight. A chance of thunderstorms after midnight. Light rain likely early in the morning. Waves 2 feet or less. .TUESDAY...Southwest winds 15 to 20 knots. A chance of thunderstorms early in the morning. A chance of light rain until late afternoon...then light rain and a chance of thunderstorms early in the afternoon. Waves 1 to 3 feet. .TUESDAY NIGHT...Southwest winds 15 to 20 knots veering to the northwest after midnight. Rain and a chance of thunderstorms ... then a chance of rain after midnight. Waves 1 to 3 feet. .WEDNESDAY...North winds 10 to 15 knots becoming northeast 15 to 20 knots in the evening. Mostly cloudy with a chance of light rain. Waves 1 to 3 feet. .THURSDAY...South winds 15 to 20 knots. Light rain. Waves 1 to 3 feet. .FRIDAY...North winds 20 to 25 knots. Light rain. Waves 2 to 4 feet. $$ BT Experimental modernized open lake forecast is available online at weather.gov/dtx/glftablesc Graphical marine forecasts are available at weather.gov/greatlakes