Great Lakes Forecast
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172
FZUS63 KDTX 220721
GLFSC

Lake St Clair Forecast
National Weather Service Detroit/Pontiac MI
321 AM EDT Sun Sep 22 2024

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 weak low pressure system, 29.80 inches, moves into
northern Ohio River Valley into Lake Erie this evening through
tomorrow morning. This will bring occasional rain with embedded
thunderstorms, and will also push in a cold front across the
Great Lakes starting late tonight, which will flip wind direction
from SSE to NNW/NNE. A second low pressure system, 29.70 inches,
will move through the southern Great Lakes Tuesday into Wednesday
morning, bringing another round of active weather.

LCZ460-221530-
Lake St Clair-
321 AM EDT Sun Sep 22 2024

.TODAY...Light and variable winds becoming southeast 5 to 10 knots
in the late morning and afternoon. Partly sunny. Patchy fog in the
morning. A chance of. Waves 2 feet or less.
.TONIGHT...Southeast winds 5 to 10 knots increasing to 10 to 15
knots after midnight. Showers. Waves 2 feet or less.
.MONDAY...South winds 10 to 15 knots veering to the northwest in the
late morning and early afternoon...then diminishing to 5 to 10 knots
early in the afternoon. Mostly cloudy. Waves 2 feet or less.
.MONDAY NIGHT...North winds 10 to 15 knots diminishing to 5 to 10
knots after midnight. Mostly cloudy. A chance of light showers after
midnight. Waves 2 feet or less.
.TUESDAY...Northeast winds 5 to 10 knots veering to the southeast in
the afternoon and evening. Mostly cloudy. A chance of light showers
in the morning...then showers likely and a chance of thunderstorms
in the afternoon and evening. Waves 2 feet or less.
.WEDNESDAY...Northwest winds 5 to 10 knots. Partly cloudy. A chance
of showers and thunderstorms. Waves 2 feet or less.
.THURSDAY...Northeast winds 10 to 15 knots. Partly cloudy. Waves 2
feet or less.

$$

MR

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

Graphical marine forecasts are available at weather.gov/greatlakes