FZUS63 KDTX 191943

GLFSC 



Lake St Clair Forecast

National Weather Service Detroit/Pontiac MI

343 PM EDT Tue Aug 19 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...Low pressure, 29.90 inches, tracks across the central

Great Lakes today, triggering showers and thunderstorms. Gusty

northeast wind will follow the departure of this system on

Wednesday. High pressure builds in from the northern Great Lakes

through the late week.



LCZ460-200400-

Lake St Clair-

343 PM EDT Tue Aug 19 2025



.TONIGHT...East winds 5 to 10 knots backing to the northeast after

midnight...then increasing to 10 to 15 knots early in the morning.

Partly cloudy this evening becoming mostly cloudy. A chance of

showers and thunderstorms early in the evening. Waves 2 feet or

less.

.WEDNESDAY...North winds 10 to 15 knots. Mostly cloudy until late

afternoon becoming mostly sunny. Waves 1 to 3 feet.

.WEDNESDAY NIGHT...Northeast winds 15 to 20 knots diminishing to 10

to 15 knots after midnight. Partly cloudy. Waves 1 to 3 feet.

.THURSDAY...Northeast winds 10 to 15 knots. Mostly sunny. Waves 2

feet or less.

.THURSDAY NIGHT...Northeast winds 10 to 15 knots diminishing to 5 to

10 knots after midnight. Mostly clear. Waves 2 feet or less.

.FRIDAY...Northeast winds 5 to 10 knots in the morning becoming

light and variable...then becoming southeast 5 to 10 knots in the

evening. Clear. Waves 2 feet or less.

.SATURDAY...West winds 10 to 15 knots. Mostly clear. Waves 2 feet or

less.

.SUNDAY...West winds 10 to 15 knots. Mostly clear. Waves 2 feet or

less.



$$



TF



Experimental modernized open lake forecast is available online at

weather.gov/dtx/glftablesc



Graphical marine forecasts are available at weather.gov/greatlakes