Great Lakes Forecast
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FZUS63 KDTX 181944
GLFSC

Lake St Clair Forecast
National Weather Service Detroit/Pontiac MI
344 PM EDT Fri Aug 18 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...Low pressure, 29.50 inches will lift out of Ontario
tonight into central Quebec on Saturday. High pressure, 30.10
inches will then build into the upper Ohio River Valley Saturday
night into Sunday.

LCZ460-190815-
Lake St Clair-
344 PM EDT Fri Aug 18 2017

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 PM EDT THIS EVENING...

.TONIGHT...West winds 15 to 20 knots with gusts to 25 knots early
diminishing to 5 to 10 knots. Mostly cloudy this evening becoming
partly cloudy. Waves 2 feet or less.
.SATURDAY...West winds 5 to 10 knots. Partly sunny. A chance of
showers and thunderstorms until late afternoon. Waves 2 feet or
less.
.SATURDAY NIGHT...Northwest winds 5 to 10 knots early in the evening
becoming light and variable...then becoming west 5 to 10 knots early
in the morning. Mostly clear. Waves 2 feet or less.
.SUNDAY...West winds 5 to 10 knots early in the morning becoming
light and variable...then becoming southwest 5 to 10 knots in the
afternoon. Sunny. Waves 2 feet or less.
.SUNDAY NIGHT...South winds 5 to 10 knots. Clear. Waves 2 feet or
less.
.MONDAY...Southwest winds 5 to 10 knots. Mostly sunny until late
afternoon becoming partly cloudy. Waves 2 feet or less.
.TUESDAY...West winds 10 to 15 knots. Mostly cloudy with showers and
thunderstorms likely. Waves 2 feet or less.
.WEDNESDAY...Northwest winds 10 to 15 knots. Partly cloudy. A chance
of showers. Waves 2 feet or less.

$$

SF

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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