Great Lakes Forecast
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FZUS63 KDTX 191947 RRA
GLFSC

Lake St Clair Forecast
National Weather Service Detroit/Pontiac MI
343 PM EDT TUE SEP 19 2017

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...High pressure, 30.20 inches, will reside over Quebec
this afternoon and overnight. A weakening frontal boundary, average
pressure 29.90 inches, will lift slowly into southern lower Michigan
tonight. High pressure will expand across the eastern Great Lakes
from Quebec on Wednesday, where it will hold steady through the
weekend.

LCZ460-200800-
Lake St Clair-
343 PM EDT TUE SEP 19 2017

.TONIGHT...East winds 5 to 10 knots this evening becoming light and
variable. Mostly cloudy. Light showers likely and a chance of
thunderstorms in the evening. A chance of light showers after
midnight. Waves 2 feet or less.
.WEDNESDAY...Light and variable winds becoming southeast 5 to 10
knots in the afternoon. Partly sunny. A chance of light showers
early in the morning. Waves 2 feet or less.
.WEDNESDAY NIGHT...South winds 5 to 10 knots until early morning
becoming light and variable. Mostly clear. Waves 2 feet or less.
.THURSDAY...Southeast winds 5 to 10 knots. Mostly sunny. Waves 2
feet or less.
.THURSDAY NIGHT...Southeast winds 5 to 10 knots until early morning
becoming light and variable. Mostly clear. Waves 2 feet or less.
.FRIDAY...Light and variable winds. Mostly sunny until late
afternoon becoming clear. Waves 2 feet or less.
.SATURDAY...Light and variable winds. Clear. Waves 2 feet or less.
.SUNDAY...Light and variable winds. Clear. Waves 2 feet or less.

$$

AA

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

Graphical marine forecasts are available at weather.gov/greatlakes



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