968
FZUS63 KDTX 170753
GLFSC

Lake St Clair Forecast
National Weather Service Detroit/Pontiac MI
353 AM EDT Sun Aug 17 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 cold front exits into the Ohio valley this morning
while high pressure, 30.30 inches, builds across northern
Ontario. The result is moderate northeast winds (20-30 knots) and
large waves across Lake Huron today into this evening. Speed
remains elevated while direction veers toward the southeast to
maintain unsettled marine conditions through the early week
period.

LCZ460-171600-
Lake St Clair-
353 AM EDT Sun Aug 17 2025

.TODAY...Northwest winds 5 to 10 knots becoming north 15 to 20
knots. Mostly cloudy. A chance of thunderstorms early in the
morning. A chance of showers until early afternoon. Waves 2 feet
or less building to 1 to 3 feet in the afternoon.
.TONIGHT...Northeast winds 15 to 20 knots diminishing to 10 to 15
knots early in the morning. Mostly clear. Waves 1 to 3 feet.
.MONDAY...East winds 10 to 15 knots diminishing to 5 to 10 knots
early in the afternoon. Mostly sunny. Waves 2 feet or less.
.MONDAY NIGHT...East winds 10 to 15 knots. Mostly clear. Waves 2
feet or less.
.TUESDAY...Southeast winds 5 to 10 knots. Partly cloudy. A chance of
showers and thunderstorms. Waves 2 feet or less.
.WEDNESDAY...North winds 15 to 20 knots. Partly cloudy. A chance of
showers. Waves 1 to 3 feet.
.THURSDAY...Northeast winds 15 to 20 knots. Mostly clear. Waves 2
feet or less.

$$

BT

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

Graphical marine forecasts are available at weather.gov/greatlakes