053
FZUS63 KDTX 130800
GLFSC

Lake St Clair Forecast
National Weather Service Detroit/Pontiac MI
400 AM EDT Sun Sep 13 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 of 29.3 inches will continue to push
eastward over northern Ontario as it drags a cold front across
the central Great Lakes this morning. West to northwest flow
increases fairly quickly this afternoon behind the front, with
sustained winds around 25 to 30 knots. High pressure quickly
builds into the region Monday, allowing northwest winds to relax
in/around daybreak. Attention then turns to the potential for
gales on Lake Huron from the south and southwest late Monday
night through Tuesday as low pressure of 29.2 inches tracks across
the Canadian Prairies and eventually up into the Hudson Bay
region through mid week.

LCZ460-131600-
Lake St Clair-
400 AM EDT Sun Sep 13 2026

...SMALL CRAFT ADVISORY IN EFFECT FROM THIS AFTERNOON THROUGH
LATE TONIGHT...

.TODAY...West winds 10 to 15 knots diminishing to 5 to 10 knots in
the late morning and early afternoon...then becoming northwest 15 to
20 knots late in the afternoon. Partly sunny. Waves 2 feet or less.
.TONIGHT...Northwest winds 20 to 25 knots becoming north 15 to 20
knots after midnight. Partly cloudy in the evening then clearing.
Waves 1 to 3 feet.
.MONDAY...North winds 10 to 15 knots diminishing to 5 to 10 knots in
the late morning and early afternoon...then becoming light and
variable early in the afternoon. Sunny. Waves 2 feet or less.
.MONDAY NIGHT...Southeast winds 5 to 10 knots becoming south 20 to
25 knots. Partly cloudy. Waves 2 feet or less.
.TUESDAY...South winds 20 to 25 knots becoming southwest 10 to 15
knots. Partly sunny. A chance of light showers. Light showers in the
evening. Waves 1 to 3 feet.
.WEDNESDAY...Northeast winds 10 to 15 knots. Mostly cloudy with
light showers. Waves 2 feet or less.
.THURSDAY...North winds 10 to 15 knots. Mostly cloudy with showers
likely. 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