597
FZUS63 KDTX 190204
GLFSC

Lake St Clair Forecast
National Weather Service Detroit/Pontiac MI
1002 PM EDT WED JUN 18 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 tracks from southern Lake Michigan to
central Lake Huron tonight and Thursday morning, along a front
stalled across the central Great Lakes. Showers and thunderstorms
continue with this system capable of severe intensity this
evening mainly south of Saginaw Bay. A relative break in showers
and storms occurs Thursday before ramping up again Friday and
Saturday, especially across the northern Great Lakes where larger
thunderstorm complexes are possible.

LCZ460-190800-
Lake St Clair-
1002 PM EDT WED JUN 18 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 AM EDT THURSDAY...

.REST OF TONIGHT...South winds 15 to 20 knots becoming southwest 20
to 25 knots with gusts to 30 knots after midnight. Showers with
thunderstorms likely. Some thunderstorms may produce heavy rainfall.
Waves 1 to 3 feet building to 2 to 4 feet after midnight.
.THURSDAY...West winds 15 to 20 knots with gusts to 30 knots
becoming northwest 10 to 15 knots in the afternoon. Partly sunny
with showers likely and a chance of thunderstorms. Some
thunderstorms may produce heavy rainfall. Waves 1 to 3 feet.
.THURSDAY NIGHT...West winds 5 to 10 knots. Partly cloudy in the
evening then clearing. Waves 2 feet or less.
.FRIDAY...Southwest winds 5 to 10 knots. Mostly sunny. Waves 2 feet
or less.
.FRIDAY NIGHT...Southwest winds 5 to 10 knots increasing to 10 to 15
knots in the late evening and overnight. Partly cloudy. Waves 2 feet
or less.
.SATURDAY...Southwest winds 10 to 15 knots increasing to 15 to 20
knots in the afternoon and evening. Partly cloudy in the morning
then clearing. Waves 1 to 3 feet.
.SUNDAY...Southwest winds 15 to 20 knots. Clear. Waves 1 to 3 feet.
.MONDAY...Southwest winds 10 to 15 knots. Clear. Waves 2 feet or
less.

$$

CB

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

Graphical marine forecasts are available at weather.gov/greatlakes