Great Lakes Forecast
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143
FZUS63 KDTX 220255
GLFSC

Lake St Clair Forecast
National Weather Service Detroit/Pontiac MI
955 PM EST Sat Feb 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, averaging 29.90 inches, remains over
Lake Huron today before phasing with a strong coastal Atlantic
low tonight. Widespread snow shower activity today diminishes
overnight as northwest flow ramps up into Monday.

LCZ460-221100-
Lake St Clair-
955 PM EST Sat Feb 21 2026

.REST OF TONIGHT...West winds 5 to 10 knots. Mostly cloudy. A chance
of light snow after midnight.
.SUNDAY...Northwest winds 5 to 10 knots increasing to 10 to 15 knots
late in the afternoon. Mostly cloudy. A chance of light snow until
late afternoon...then light snow likely late in the afternoon.
.SUNDAY NIGHT...North winds 10 to 15 knots becoming northwest 20 to
25 knots. Mostly cloudy with a chance of light snow.
.MONDAY...North winds 20 to 25 knots with gusts to 30 knots. Mostly
cloudy. A Small Craft Advisory may be needed.
.MONDAY NIGHT...Northwest winds 15 to 20 knots diminishing to 10 to
15 knots after midnight. Mostly cloudy early in the evening becoming
partly cloudy.
.TUESDAY...West winds 5 to 10 knots becoming south 10 to 15 knots in
the afternoon...then increasing to 15 to 20 knots in the evening.
Partly sunny in the morning becoming mostly cloudy. A chance of
light snow in the afternoon. Light snow likely in the evening.
.WEDNESDAY...West winds 15 to 20 knots. Mostly cloudy. Light snow
likely and a chance of light rain.
.THURSDAY...Northwest winds 15 to 20 knots. Partly cloudy. A chance
of light rain and snow.

Waves omitted due to ice coverage.

$$

DRK

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

Graphical marine forecasts are available at weather.gov/greatlakes