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FZUS63 KDTX 070249
GLFSC

Lake St Clair Forecast
National Weather Service Detroit/Pontiac MI
949 PM EST Sat Dec 6 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, 30.30 inches, slides through the
Central Great Lakes tonight. Low pressure, 29.90 inches, then
tracks across the southern Great Lakes Sunday morning bringing
light snow to the area. Brief strong northwest winds follow late
Sunday for Lake Huron, with elevated wind potential carrying into
the early part of next week.

LCZ460-071100-
Lake St Clair-
949 PM EST Sat Dec 6 2025

.REST OF TONIGHT...West winds 5 to 10 knots this evening becoming
light and variable. Cloudy. Waves 2 feet or less.
.SUNDAY...West winds 5 to 10 knots becoming northwest 10 to 15 knots
late in the afternoon. Light snow in the morning...then light snow
likely early in the afternoon. A chance of light snow late in the
afternoon. Waves 2 feet or less.
.SUNDAY NIGHT...North winds 15 to 20 knots. Mostly clear. Waves 1 to
3 feet.
.MONDAY...North winds 10 to 15 knots becoming east 5 to 10 knots in
the late morning and afternoon. Partly sunny. Waves 2 feet or less.
.MONDAY NIGHT...Southeast winds 5 to 10 knots becoming south 15 to
20 knots in the late evening and early morning...then becoming
southwest 20 to 25 knots after midnight. Partly cloudy until early
morning becoming mostly cloudy. Waves 2 feet or less building to 2
to 4 feet after midnight.
.TUESDAY...Southwest winds to 30 knots diminishing to 20 to 25 knots
with gusts to 30 knots in the afternoon and evening. Cloudy. A
chance of light snow in the afternoon and evening. A chance of light
rain in the evening. Waves 2 to 4 feet. A Small Craft Advisory may
be needed.
.WEDNESDAY...West at 35 knot gales. Light rain and a chance of light
snow. Waves 3 to 5 feet. Waves occasionally around 7 feet.  A Gale
Warning may be needed.
.THURSDAY...West winds 20 to 25 knots. Mostly cloudy. A chance of
light snow. Waves 1 to 3 feet.

$$

CB

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

Graphical marine forecasts are available at weather.gov/greatlakes