Great Lakes Forecast
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FZUS63 KDTX 201938
GLFSC

Lake St Clair Forecast
National Weather Service Detroit/Pontiac MI
338 PM EDT Sun Aug 20 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 expand across the
eastern seaboard today into Monday. Low pressure, 29.80 inches, is
forecast to develop over the Upper Midwest on Monday, then track
into the northern Great Lakes Monday night. This low is forecast to
deepen as it lifts into southern Quebec on Tuesday and will drag a
strong cold front across the Great Lakes region. Strong high
pressure will then build across the region from the west mid week.

LCZ460-210815-
Lake St Clair-
338 PM EDT Sun Aug 20 2017

.TONIGHT...South winds around 10 knots. Partly cloudy. Waves 2
feet or less.
.MONDAY...South winds around 10 knots. Partly sunny. A chance of
showers and thunderstorms late in the afternoon. Waves 2 feet or
less.
.MONDAY NIGHT...South winds 5 to 10 knots. Partly cloudy in the
evening becoming mostly cloudy. A chance of showers and
thunderstorms. Waves 2 feet or less.
.TUESDAY...Southwest winds 10 to 15 knots. Cloudy with showers and
thunderstorms likely. Waves 2 feet or less.
.TUESDAY NIGHT...Northwest winds 5 to 10 knots. Mostly cloudy with
showers and thunderstorms likely early in the evening...then mostly
clear in the late evening and overnight. Waves 2 feet or less.
.WEDNESDAY...Northwest winds 5 to 10 knots increasing to 10 to 15
knots in the afternoon...then becoming north 5 to 10 knots in the
evening. Sunny early in the morning becoming mostly clear. Waves 2
feet or less.
.THURSDAY...Northeast winds 5 to 10 knots. Mostly clear. Waves 2
feet or less.
.FRIDAY...Northeast winds 5 to 10 knots. Clear. 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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