Great Lakes Forecast
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FZUS63 KDTX 100244
GLFSC

Lake St Clair Forecast
National Weather Service Detroit/Pontiac MI
944 PM EST Sat Dec 9 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, 29.70 inches, will weaken as it moves into
Ohio this evening. A cold front, 29.80 inches, will slide south
across Lake Huron tonight, before advancing across Lake Huron on
Sunday. High pressure, 30.10 inches, will traverse Lake Superior
Sunday night. Low pressure will then quickly traverse Lower Michigan
on Monday, deepening as it exits the region to the east.

LCZ460-100915-
Lake St Clair-
944 PM EST Sat Dec 9 2017

.REST OF TONIGHT...Northwest winds 10 to 15 knots increasing to 15
to 20 knots after midnight...then becoming west 10 to 15 knots early
in the morning. Mostly cloudy this evening becoming partly cloudy. A
chance of light snow showers in the late evening and early morning.
Waves 2 feet or less.
.SUNDAY...West winds 10 to 15 knots becoming southwest 15 to 20
knots in the late morning and early afternoon...then becoming west
10 to 15 knots late in the afternoon. Mostly cloudy. Waves 2 feet or
less.
.SUNDAY NIGHT...West winds 10 to 15 knots becoming northwest 5 to 10
knots early in the morning. Mostly cloudy with a chance of light
snow showers until early morning...then partly cloudy early in the
morning. Waves 2 feet or less.
.MONDAY...West winds 5 to 10 knots backing to the southwest late in
the morning...then becoming south 10 to 15 knots in the afternoon.
Mostly cloudy. Light snow likely in the afternoon. Waves 2 feet or
less.
.MONDAY NIGHT...Southwest winds 5 to 10 knots becoming west 10 to 15
knots after midnight...then becoming northwest 15 to 20 knots early
in the morning. Cloudy until early morning becoming partly cloudy.
Light snow likely until early morning...then a chance of light snow
early in the morning. Waves 2 feet or less.
.TUESDAY...Northwest winds 15 to 20 knots. Gusts to 30 knots in the
morning. Partly cloudy. Waves 1 to 3 feet. A Small Craft Advisory
may be needed.
.WEDNESDAY...West winds 15 to 20 knots. Partly cloudy. Waves 2 feet
or less.
.THURSDAY...West winds 10 to 15 knots. Mostly cloudy with a chance
of snow showers. 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


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