168
FZUS63 KDTX 190148
GLFSC

Lake St Clair Forecast
National Weather Service Detroit/Pontiac MI
948 PM EDT Sat Oct 18 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, 29.20 inches, rapidly develops along a
cold front over the mid-Mississippi and moves over lower Michigan
Sunday, bringing the chance for southerly gales Sunday morning
across Central and Southern Lake Huron with higher probabilities
for northwesterly gales over most of Lake Huron by late Sunday
afternoon. Elsewhere, near gale gusts can be expected. High
pressure builds in briefly on Monday before another low pressure
moves through the region on Tuesday bringing another chance at
gales.

LCZ460-191000-
Lake St Clair-
948 PM EDT Sat Oct 18 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 5 AM EDT SUNDAY THROUGH
LATE SUNDAY NIGHT...

.REST OF TONIGHT...South winds 10 to 15 knots increasing to 20 to 25
knots early in the morning. Mostly cloudy in the late evening and
early morning. Scattered light showers this evening. Scattered
thunderstorms. Showers after midnight. Waves 2 feet or less building
to 2 to 4 feet early in the morning.
.SUNDAY...South winds to 30 knots becoming southwest 20 to 25 knots
early in the afternoon...then veering to the west late in the
afternoon. Light showers. Waves 2 to 4 feet.
.SUNDAY NIGHT...Northwest winds to 30 knots diminishing to 20 to 25
knots after midnight. Becoming partly cloudy in the late evening and
overnight. Light showers early in the evening...then numerous light
showers in the late evening and early morning. Waves 2 to 4 feet.
.MONDAY...West winds 20 to 25 knots diminishing to 10 to 15 knots.
Sunny. Waves 1 to 3 feet.
.MONDAY NIGHT...Southwest winds 10 to 15 knots becoming south 20 to
25 knots. Mostly clear. Scattered light showers after midnight.
Waves 2 feet or less building to 2 to 4 feet after midnight.
.TUESDAY...Southwest winds 20 to 25 knots with gusts to 30 knots
becoming west to 30 knots in the evening. Partly sunny with numerous
light showers...then partly cloudy with scattered light showers in
the evening. Waves 2 to 4 feet. A Small Craft Advisory may be
needed.
.WEDNESDAY...West winds to 30 knots. Mostly cloudy with numerous
light showers. Waves 2 to 4 feet.
.THURSDAY...West winds 20 to 25 knots. Partly cloudy. Scattered
light showers. Waves 1 to 3 feet.

$$

KDK

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

Graphical marine forecasts are available at weather.gov/greatlakes