Great Lakes Forecast
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935
FZUS63 KDTX 160137
GLFSC

Lake St Clair Forecast
National Weather Service Detroit/Pontiac MI
937 PM EDT Tue Jul 15 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...A hybrid cold front and low pressure trough, averaging
29.80 inches, moves into the Great Lakes Wednesday and Thursday
which brings showers and thunderstorms to the marine zones.
Strong to severe thunderstorms will be possible Wednesday
afternoon and evening. North-northwest winds behind this system
will increase on Thursday, ranging from 20-25 knots.

LCZ460-160945-
Lake St Clair-
937 PM EDT Tue Jul 15 2025

.REST OF TONIGHT...South winds 5 to 10 knots. Mostly clear. Waves 2
feet or less.
.WEDNESDAY...South winds 5 to 10 knots. Partly sunny with a chance
of showers and thunderstorms. Some thunderstorms may produce heavy
rainfall. Waves 2 feet or less.
.WEDNESDAY NIGHT...South winds 5 to 10 knots becoming southwest 10
to 15 knots after midnight. Partly cloudy. A chance of showers and
thunderstorms in the evening...then a chance of light showers after
midnight. Some thunderstorms may produce heavy rainfall in the
evening. Waves 2 feet or less.
.THURSDAY...West winds 10 to 15 knots. Partly sunny. A chance of
light showers in the morning...then light showers likely and a
chance of thunderstorms in the afternoon. Waves 2 feet or less.
.THURSDAY NIGHT...North winds 10 to 15 knots. Mostly cloudy in the
evening becoming partly cloudy. Waves 2 feet or less.
.FRIDAY...Northeast winds 10 to 15 knots diminishing to 5 to 10
knots in the afternoon and evening. Mostly sunny becoming sunny in
the afternoon becoming mostly clear. Waves 2 feet or less.
.SATURDAY...Southeast winds 5 to 10 knots. Partly cloudy. A chance
of showers and thunderstorms. Waves 2 feet or less.
.SUNDAY...Northeast winds 5 to 10 knots. Partly cloudy. A chance of
showers and thunderstorms. Waves 2 feet or less.

$$

JA

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

Graphical marine forecasts are available at weather.gov/greatlakes