490
FZUS63 KDTX 151446
GLFSC

Lake St Clair Forecast
National Weather Service Detroit/Pontiac MI
946 AM EST Sat Nov 15 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 tracking into the Hudson Bay swings a
cold front across the Great Lakes this evening as a secondary
area of low pressure, 29.20 inches, forms along the front near
the northern Lake Huron shoreline. Secondary low and cold front
track into southern Ontario later this evening setting up strong
northwesterly winds into the central Great Lakes. Gale Warnings
are in effect for the bulk of Lake Huron this evening through
Sunday. High pressure, 30.20 inches, then begins to build in
starting Sunday night.

LCZ460-152300-
Lake St Clair-
946 AM EST Sat Nov 15 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 7 PM EST THIS EVENING
THROUGH SUNDAY EVENING...

.REST OF TODAY...Southwest winds 15 to 20 knots becoming west
late in the afternoon. Cloudy. Waves 1 to 3 feet.
.TONIGHT...Northwest winds 15 to 20 knots. Gusts to 25 knots.
Partly cloudy. Waves 1 to 3 feet.
.SUNDAY...Northwest winds 20 to 25 knots with gusts to 30 knots.
Mostly sunny. Waves 2 to 4 feet.
.SUNDAY NIGHT...Northwest winds to 30 knots diminishing to 20 to 25
knots in the late evening and overnight. Mostly clear. Waves 2 to 4
feet.
.MONDAY...Northwest winds 15 to 20 knots diminishing to 5 to 10
knots. Mostly clear. Waves 2 feet or less.
.TUESDAY...Northeast winds 5 to 10 knots. Partly cloudy. A chance of
light rain. Waves 2 feet or less.
.WEDNESDAY...East winds 5 to 10 knots. Partly cloudy. Waves 2 feet
or less.

$$

TF

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

Graphical marine forecasts are available at weather.gov/greatlakes