Great Lakes Forecast
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991
FZUS63 KDTX 201940
GLFSC

Lake St Clair Forecast
National Weather Service Detroit/Pontiac MI
340 PM EDT Tue Jun 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, 30.00 inches, will build into the
region tonight into Wednesday as low pressure moves slowly eastward
across northern Quebec. A warm front is then expected to lift north
across the region on Thursday as a complex low pressure system
tracks from Manitoba into northern Ontario.

LCZ460-210815-
Lake St Clair-
340 PM EDT Tue Jun 20 2017

.TONIGHT...West winds 10 to 15 knots becoming northwest 5 to 10
knots late in the evening...then becoming light and variable after
midnight becoming northwest 5 to 10 knots early in the morning.
Mostly cloudy early in the evening then clearing. A chance of light
showers early in the evening. Waves 2 feet or less.
.WEDNESDAY...Northwest winds 5 to 10 knots in the morning becoming
light and variable. Mostly sunny. Waves 2 feet or less.
.WEDNESDAY NIGHT...Light and variable winds becoming southeast 5 to
10 knots in the late evening and overnight. Partly cloudy. Waves 2
feet or less.
.THURSDAY...South winds 5 to 10 knots increasing to 10 to 15 knots
in the late morning and afternoon. Mostly cloudy with a chance of
showers and thunderstorms. Waves 2 feet or less.
.THURSDAY NIGHT...Southwest winds 10 to 15 knots diminishing to 5 to
10 knots in the late evening and overnight. Mostly cloudy. A chance
of showers and thunderstorms in the evening...then showers likely
and a chance of thunderstorms after midnight. Waves 2 feet or less.
.FRIDAY...West winds 5 to 10 knots. Mostly cloudy until late
afternoon becoming partly cloudy. Showers likely early in the
morning. A chance of thunderstorms until late afternoon. A chance of
light showers until early evening. Waves 2 feet or less.
.SATURDAY...West winds 5 to 10 knots. Partly cloudy. A chance of
showers. Waves 2 feet or less.
.SUNDAY...Northwest winds 10 to 15 knots. Partly cloudy. A chance of
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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