Great Lakes Forecast
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404
FZUS63 KDTX 130855
GLFSC

Lake St Clair Forecast
National Weather Service Detroit/Pontiac MI
355 AM EST Wed Dec 13 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...A weak surface ridge will bring a brief increase in
pressure up to 29.90 inches this afternoon before a second clipper
system, averaging 29.60 inches, drops south of Michigan Wednesday
into Thursday.

LCZ460-132115-
Lake St Clair-
355 AM EST Wed Dec 13 2017

.TODAY...West winds 10 to 15 knots becoming southwest 5 to 10 knots
in the late morning and early afternoon...then becoming southeast 10
to 15 knots late in the afternoon. Light snow likely late in the
morning. Snow in the afternoon. Snow may be heavy at times in the
afternoon. Waves 2 feet or less.
.TONIGHT...Southeast winds 10 to 15 knots becoming northeast 15 to
20 knots in the late evening and early morning...then becoming north
10 to 15 knots early in the morning. Snow until early morning...then
a chance of light snow showers early in the morning. Waves 2 feet or
less.
.THURSDAY...Northwest winds 10 to 15 knots diminishing to 5 to 10
knots late in the afternoon. Mostly sunny. Waves 2 feet or less.
.THURSDAY NIGHT...Southwest winds 5 to 10 knots. Partly cloudy until
early morning becoming mostly cloudy. Waves 2 feet or less.
.FRIDAY...Southwest winds 10 to 15 knots increasing to 15 to 20
knots in the afternoon...then becoming west 10 to 15 knots in the
evening. Mostly cloudy becoming partly cloudy. A chance of light
snow showers. Waves 2 feet or less.
.SATURDAY...South winds 10 to 15 knots. Partly cloudy. Waves 2 feet
or less.
.SUNDAY...Southwest winds 10 to 15 knots. Mostly cloudy. Rain and
snow showers likely. 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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