Expires:202504210400;;161214 FZUS63 KDTX 201958 GLFSC Lake St Clair Forecast National Weather Service Detroit/Pontiac MI 358 PM EDT Sun Apr 20 2025 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...High pressure, 30.50 inches, continues to migrate into Ontario this evening with light easterly flow in its wake. By tonight low pressure, 29.60 inches, gains influence with showers and embedded thunderstorms reaching the area by early Monday morning. There is potential for localized gusts to gale force Monday afternoon and evening once the occluded front passes through. LCZ460-210400- Lake St Clair- 358 PM EDT Sun Apr 20 2025 ...SMALL CRAFT ADVISORY IN EFFECT FROM MONDAY MORNING THROUGH LATE MONDAY NIGHT... .TONIGHT...East winds 10 to 15 knots increasing to 15 to 20 knots after midnight...then diminishing to 10 to 15 knots early in the morning. Mostly cloudy. Light rain likely after midnight. Waves 1 to 3 feet. .MONDAY...Southeast winds 10 to 15 knots becoming south 15 to 20 knots in the late morning and early afternoon...then veering to the southwest with gusts to 30 knots late in the afternoon. Light rain and a chance of thunderstorms in the morning. Waves 1 to 3 feet. .MONDAY NIGHT...West winds 15 to 20 knots. Gusts to 30 knots early in the evening. Partly cloudy. Waves 1 to 3 feet. .TUESDAY...West winds 10 to 15 knots diminishing to 5 to 10 knots early in the afternoon. Mostly sunny. Waves 2 feet or less. .TUESDAY NIGHT...North winds 5 to 10 knots veering to the east in the late evening and overnight. Mostly clear. Waves 2 feet or less. .WEDNESDAY...Southeast winds 5 to 10 knots. Partly sunny becoming mostly sunny in the afternoon becoming partly cloudy. Waves 2 feet or less. .THURSDAY...East winds 10 to 15 knots. Partly cloudy. Waves 2 feet or less. .FRIDAY...West winds 10 to 15 knots. Mostly cloudy. Light rain likely. Waves 2 feet or less. $$ MV Experimental modernized open lake forecast is available online at weather.gov/dtx/glftablesc Graphical marine forecasts are available at weather.gov/greatlakes