Great Lakes Forecast
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FZUS63 KDTX 291449
GLFSC

Lake St Clair Forecast
National Weather Service Detroit/Pontiac MI
949 AM EST Mon Dec 29 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, 28.90 inches, tracks across northern
Lake Huron early this morning. Widespread strong gales with storm
force gusts, snow squalls, and freezing spray are all expected
Monday. The next clipper in a persistent northwest flow pattern
arrives late Tuesday.

LCZ460-292300-
Lake St Clair-
949 AM EST Mon Dec 29 2025

...GALE WARNING IN EFFECT THROUGH TUESDAY MORNING...

.REST OF TODAY...Southwest at 35 knot gales becoming west to 30
knots in the afternoon. Gusts to 45 knot gales. Light snow showers
in the late morning and early afternoon...then scattered light snow
showers late in the afternoon. Waves 4 to 6 feet. Waves occasionally
around 8 feet.
.TONIGHT...Northwest at 35 knot gales with gusts to 40 knot gales
diminishing to 30 knots with gusts to 35 knot gales after midnight.
Mostly cloudy. Waves 3 to 5 feet. Waves occasionally around 7 feet.
.TUESDAY...West winds 20 to 25 knots with gusts to 30 knots
diminishing to 15 to 20 knots early in the afternoon. Mostly cloudy.
Waves 2 to 4 feet subsiding to 1 to 3 feet in the late morning and
afternoon.
.TUESDAY NIGHT...West winds 15 to 20 knots. Light snow ...then a
chance of light snow after midnight. Waves 1 to 3 feet.
.WEDNESDAY...West winds 15 to 20 knots. Mostly cloudy with a chance
of light snow in the morning...then partly cloudy with light snow
likely in the afternoon and evening. Waves 1 to 3 feet.
.THURSDAY...West winds 15 to 20 knots. Partly cloudy. Waves 1 to 3
feet.
.FRIDAY...West winds 15 to 20 knots. Mostly cloudy. Waves 1 to 3
feet.

Wave heights are for ice free areas.

$$

MV

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

Graphical marine forecasts are available at weather.gov/greatlakes