FZUS63 KDTX 200139

GLFSC 



Lake St Clair Forecast

National Weather Service Detroit/Pontiac MI

939 PM EDT Thu Mar 19 2026



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...A compact clipper tracks across northern Lake Huron

Friday morning. Weak high pressure follows on Saturday before a

strong cold front sinks south across the region with gusty

northeast wind on Sunday. Stronger high pressure follows on

Monday with another cold front expected Tuesday.



LCZ460-200945-

Lake St Clair-

939 PM EDT Thu Mar 19 2026



.REST OF TONIGHT...Southeast winds 5 to 10 knots increasing to 10 to

15 knots early in the morning. Partly cloudy by midnight becoming

mostly cloudy. Waves 2 feet or less.

.FRIDAY...South winds 10 to 15 knots becoming southwest 15 to 20

knots late in the morning...then becoming west 10 to 15 knots in the

afternoon. Mostly cloudy. A chance of light rain in the morning.

Waves 1 to 3 feet.

.FRIDAY NIGHT...North winds 10 to 15 knots diminishing to 5 to 10

knots in the late evening and overnight. Partly cloudy. Waves 2 feet

or less.

.SATURDAY...Light and variable winds becoming southeast 5 to 10

knots early in the afternoon. Mostly cloudy. Waves 2 feet or less.

.SATURDAY NIGHT...Southeast winds 5 to 10 knots becoming south 10 to

15 knots after midnight. Partly cloudy. Waves 2 feet or less.

.SUNDAY...South winds 10 to 15 knots backing to the northeast in the

afternoon...then becoming north 15 to 20 knots in the evening.

Partly sunny in the morning becoming mostly cloudy. A chance of

light rain. Waves 1 to 3 feet.

.MONDAY...North winds 15 to 20 knots. Partly cloudy. Waves 1 to 3

feet.

.TUESDAY...Southwest winds 10 to 15 knots. Partly cloudy. Waves 2

feet or less.



$$



MANN



Experimental modernized open lake forecast is available online at

weather.gov/dtx/glftablesc



Graphical marine forecasts are available at weather.gov/greatlakes