Great Lakes Forecast
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FZUS63 KDTX 112046
GLFSC

Lake St Clair Forecast
National Weather Service Detroit/Pontiac MI
346 PM EST Mon Dec 11 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 low pressure clipper system averaging 29.60 inches
will continue to push east across Michigan through Monday evening,
and will be positioned across New England by Tuesday afternoon. A
brief increase in pressure up to 29.90 inches is expected across the
Great Lakes by Wednesday afternoon before a second clipper system,
averaging 29.60 inches, drops south of Michigan Wednesday into
Thursday.

LCZ460-120915-
Lake St Clair-
346 PM EST Mon Dec 11 2017

...GALE WARNING IN EFFECT FROM LATE TONIGHT THROUGH TUESDAY
AFTERNOON...

.TONIGHT...South winds 10 to 15 knots diminishing to 5 to 10 knots
late in the evening...then veering to the northwest after midnight
increasing to 20 to 25 knots with gusts to 30 knots early in the
morning. Light snow. Waves 2 feet or less.
.TUESDAY...Northwest winds to 30 knots with gusts to 35 knot gales.
Partly sunny. A chance of light snow early in the morning...then a
chance of light snow showers in the late morning and afternoon.
Waves 2 to 4 feet.
.TUESDAY NIGHT...Northwest winds to 30 knots diminishing to 15 to 20
knots. Partly cloudy. A chance of flurries in the late evening and
overnight. Waves 2 to 4 feet subsiding to 1 to 3 feet in the late
evening and overnight.
.WEDNESDAY...Northwest winds 15 to 20 knots becoming west 10 to 15
knots in the late morning and afternoon. Partly sunny. A chance of
flurries in the morning. Waves 2 feet or less.
.WEDNESDAY NIGHT...West winds 5 to 10 knots veering to the north
early in the morning. Mostly cloudy. A chance of light snow showers
until early morning. Waves 2 feet or less.
.THURSDAY...North winds 5 to 10 knots backing to the west in the
evening. Partly cloudy becoming mostly cloudy. Waves 2 feet or less.
.FRIDAY...West winds 10 to 15 knots. Mostly cloudy with a chance of
snow showers. Waves 2 feet or less.
.SATURDAY...South winds 10 to 15 knots. Mostly cloudy. A chance of
rain and snow showers. Waves 2 feet or less.

$$

JVC

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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