Great Lakes Forecast
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FZUS63 KDTX 160142
GLFSC

Lake St Clair Forecast
National Weather Service Detroit/Pontiac MI
942 PM EDT Thu Jun 15 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 at 29.40 inches over Manitoba will weaken
as it moves into northwest Ontario tonight. As the low moves east,
it will pull a weak cold front through the Great Lakes tonight.
Another round of thunderstorms will accompany the frontal passage
this evening and tonight before light southwest winds develop over
marine areas on Friday. Warm southwest wind will continue through
Saturday before the next low pressure system arrives Sunday. This
system is expected to be near the Straits region by Sunday morning
and will bring a stronger cold front through Lake Huron and Lower
Michigan on Sunday.

LCZ460-160815-
Lake St Clair-
942 PM EDT Thu Jun 15 2017

.REST OF TONIGHT...Light and variable winds becoming southwest 5 to
10 knots early in the morning. Becoming Mostly clear. A chance of
showers and thunderstorms this evening. Waves 2 feet or less.
.FRIDAY...Southwest winds 5 to 10 knots early in the morning
becoming light and variable...then becoming south 10 to 15 knots in
the afternoon. Partly sunny. A chance of light showers late in the
afternoon. Waves 2 feet or less.
.FRIDAY NIGHT...Southwest winds 10 to 15 knots becoming south 5 to
10 knots in the late evening and overnight. Mostly cloudy until
early morning becoming partly cloudy. A chance of light showers
early in the evening. A chance of showers and thunderstorms after
midnight. Waves 2 feet or less.
.SATURDAY...South winds 5 to 10 knots increasing to 10 to 15 knots
in the afternoon. Mostly cloudy with a chance of showers and
thunderstorms. Waves 2 feet or less.
.SATURDAY NIGHT...South winds 10 to 15 knots diminishing to 5 to 10
knots late in the evening...then becoming southwest 10 to 15 knots
after midnight. Mostly cloudy with a chance of showers and
thunderstorms until early morning...then mostly cloudy with a chance
of light showers early in the morning. Waves 2 feet or less.
.SUNDAY...Southwest winds 10 to 15 knots. Mostly cloudy with light
showers likely until late afternoon...then partly cloudy with a
chance of light showers early in the evening. Partly cloudy late in
the evening. Waves 2 feet or less.
.MONDAY...West winds 5 to 10 knots. Partly cloudy. A chance of
showers. Waves 2 feet or less.
.TUESDAY...West winds 5 to 10 knots. Partly cloudy. A chance of
showers. 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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