National Weather Service Marine Forecast FZUS63 KDTX

FZUS63 KDTX 240833
GLFSC

Lake St Clair Forecast
National Weather Service Detroit/Pontiac MI
333 AM EST Wed Dec 24 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, 30.40 inches, will quickly fill in across the Great Lakes this morning which will rapidly diminish wind speeds and gusts. A secondary high pressure system, 30.50 inches, will then arrive near the James Bay late Thursday into Friday morning. Lighter winds prevail through tomorrow as a result.

LCZ460-241645
Lake St Clair
333 AM EST Wed Dec 24 2025

TODAY
North winds 5 to 10 knots early in the morning becoming light and variable...then becoming south 5 to 10 knots late in the afternoon. Mostly cloudy. Waves 2 feet or less.

TONIGHT
South winds 5 to 10 knots becoming light and variable. Mostly cloudy. A chance of drizzle after midnight. Waves 2 feet or less.

THURSDAY
North winds 5 to 10 knots increasing to 10 to 15 knots in the late morning and afternoon. Mostly cloudy. Waves 2 feet or less.

THURSDAY NIGHT
Northeast winds 10 to 15 knots becoming east 15 to 20 knots after midnight. Mostly cloudy. Waves 2 feet or less.

FRIDAY
East winds 15 to 20 knots becoming northeast 5 to 10 knots in the evening. Light snow and freezing rain in the morning...then light freezing rain and rain in the afternoon and evening. Waves 2 feet or less.

SATURDAY
Southeast winds 5 to 10 knots. Mostly cloudy. Waves 2 feet or less.

SUNDAY
West at 35 knot gales with gusts to 40 knot gales. Mostly cloudy with a chance of light rain and snow. Waves 2 to 4 feet. A Gale Warning may be needed.

Wave heights are for ice free areas.

KDK

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

Graphical marine forecasts are available at weather.gov/greatlakes