FZUS63 KDTX 120801

GLFSC 



Lake St Clair Forecast

National Weather Service Detroit/Pontiac MI

301 AM EST Fri Dec 12 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, will reside over the

Great Lakes today. This is followed by low pressure, 29.70

inches, moving in from central Canada into northern Ontario

tonight and Saturday. Sporadic gale force wind gusts are possible

with this system.



LCZ460-121615-

Lake St Clair-

301 AM EST Fri Dec 12 2025



.TODAY...Light and variable winds becoming southwest 5 to 10 knots

in the late morning and afternoon. Partly sunny. Waves 2 feet or

less.

.TONIGHT...Southwest winds 10 to 15 knots increasing to 15 to 20

knots early in the morning. Mostly cloudy with scattered light snow

showers. Waves 2 feet or less building to 2 to 4 feet early in the

morning.

.SATURDAY...West winds 20 to 25 knots diminishing to 15 to 20 knots

in the late morning and afternoon. Mostly cloudy. Waves 2 to 4 feet

subsiding to 1 to 3 feet in the late morning and afternoon.

.SATURDAY NIGHT...West winds 15 to 20 knots increasing to 20 to 25

knots after midnight. Mostly cloudy early in the evening becoming

mostly clear. Waves 1 to 3 feet.

.SUNDAY...Northwest winds 20 to 25 knots diminishing to 15 to 20

knots in the afternoon and evening. Mostly sunny becoming partly

sunny in the afternoon becoming mostly clear. Waves 1 to 3 feet.

.MONDAY...Southwest winds 20 to 25 knots. Partly cloudy. A chance of

light snow. Waves 2 to 4 feet.

.TUESDAY...Southwest winds to 30 knots. Mostly cloudy. Waves 2 to 4

feet. A Small Craft Advisory may be needed.



$$



SF



Experimental modernized open lake forecast is available online at

weather.gov/dtx/glftablesc



Graphical marine forecasts are available at weather.gov/greatlakes