FZUS63 KDTX 131954
GLFSC

Lake St Clair Forecast
National Weather Service Detroit/Pontiac MI
354 PM EDT Thu Mar 13 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. 30.10 inches, extends across the eastern Great Lakes today and Friday resulting in favorable marine conditions. A deep low pressure system arrives this weekend, increasing southwest flow and introducing shower and thunderstorm chances to the forecast both Saturday and Sunday.

LCZ460-140400
Lake St Clair
354 PM EDT Thu Mar 13 2025

TONIGHT
East winds 5 to 10 knots. Mostly clear. Waves 2 feet or less.

FRIDAY
Southeast winds 5 to 10 knots increasing to 10 to 15 knots in the afternoon. Partly sunny. Waves 2 feet or less.

FRIDAY NIGHT
Southeast winds 10 to 15 knots increasing to 15 to 20 knots in the late evening and overnight. Mostly cloudy in the evening...then partly cloudy with showers likely after midnight. Waves 1 to 3 feet.

SATURDAY
South winds 20 to 25 knots. Gusts to 30 knots in the late morning and afternoon. Cloudy with showers likely in the morning...then partly sunny with a chance of showers and thunderstorms in the afternoon. Waves 2 to 4 feet. A Small Craft Advisory may be needed.

SATURDAY NIGHT
South winds 15 to 20 knots. Gusts to 30 knots early in the evening. Rain and a chance of thunderstorms. Waves 1 to 3 feet.

SUNDAY
Southwest winds 10 to 15 knots becoming west 15 to 20 knots in the afternoon and evening. Mostly cloudy with a chance of light rain...then partly cloudy in the evening. Waves 1 to 3 feet.

MONDAY
Southwest winds 10 to 15 knots. Partly cloudy. Waves 2 feet or less.

TUESDAY
South winds 15 to 20 knots. Partly cloudy. Waves 2 feet or less.

KDK

Experimental modernized open lake forecast is available online at weather.gov/dtx/glftablesc

Graphical marine forecasts are available at weather.gov/greatlakes