580
FZUS63 KDTX 241444
GLFSC

Lake St Clair Forecast
National Weather Service Detroit/Pontiac MI
944 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, fills in across the
Great Lakes today providing weaker winds and lower waves. A
secondary high pressure system, 30.50 inches, will then arrive
near James Bay late Thursday with an uptick in easterly wind
speeds. A low pressure system slides east on Friday with wintry
precipitation.

LCZ460-242245-
Lake St Clair-
944 AM EST Wed Dec 24 2025

.REST OF TODAY...Light and variable winds 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.

$$

KGK

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

Graphical marine forecasts are available at weather.gov/greatlakes