989
FZUS63 KDTX 212110
GLFSC

Lake St Clair Forecast
National Weather Service Detroit/Pontiac MI
410 PM EST Wed Jan 21 2026

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, 29.70 inches, will exit from the
northern Great Lakes to Quebec by tomorrow morning. This will
draw a strong arctic cold front across the Great Lakes Thursday
and Friday. Expect elevated winds/waves, freezing spray, and
additional periods of snowfall.

LCZ460-220515-
Lake St Clair-
410 PM EST Wed Jan 21 2026

.TONIGHT...Southwest winds 10 to 15 knots. Partly cloudy this
evening becoming mostly cloudy. A chance of light snow early in the
evening. A chance of light snow showers after midnight.
.THURSDAY...West winds 10 to 15 knots increasing to 15 to 20 knots
with gusts to 30 knots in the late morning and afternoon. Partly
sunny.
.THURSDAY NIGHT...Southwest winds 10 to 15 knots becoming west 15 to
20 knots in the late evening and overnight. Partly cloudy. A chance
of light snow showers .
.FRIDAY...West winds 15 to 20 knots. Partly sunny.
.FRIDAY NIGHT...Northwest winds 10 to 15 knots diminishing to 5 to
10 knots in the late evening and overnight. Mostly clear.
.SATURDAY...Northwest winds 5 to 10 knots veering to the northeast
in the afternoon and evening. Partly sunny becoming mostly cloudy.
.SUNDAY...North winds 15 to 20 knots. Mostly cloudy with a chance of
light snow.
.MONDAY...West winds 10 to 15 knots. Partly cloudy.

Waves omitted due to ice coverage.

$$

AM

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

Graphical marine forecasts are available at weather.gov/greatlakes