Great Lakes Forecast
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FZUS63 KDTX 171939
GLFSC

Lake St Clair Forecast
National Weather Service Detroit/Pontiac MI
339 PM EDT Tue Apr 17 2018

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...Pressure averaging 29.80 Tuesday afternoon inches will gradually
increase to 29.90 inches by Wednesday morning as a weak high
pressure settles in across the Great Lakes. A second low pressure
system averaging 29.60 inches will then center across southern
Michigan into the Ohio valley by late Wednesday, bringing another
round of rain, snow, and gusty conditions. Pressure is expected to
be on the rise Thursday and into the weekend as a broad surface high
pressure system expand across the Midwest.

LCZ460-180815-
Lake St Clair-
339 PM EDT Tue Apr 17 2018

.TONIGHT...West winds 15 to 20 knots early...decreasing to 10 to
15 knots. Mostly cloudy until early morning becoming partly
cloudy. Waves 2 feet or less.
.WEDNESDAY...West winds 5 to 10 knots in the morning becoming light
and variable. Mostly cloudy. A chance of. Waves 2 feet or less.
.WEDNESDAY NIGHT...Northeast winds 10 to 15 knots becoming north 15
to 20 knots in the late evening and early morning...then diminishing
to 10 to 15 knots early in the morning. A chance of light snow in
the evening. Light rain. Light snow likely after midnight. Waves 2
feet or less.
.THURSDAY...Northwest winds 15 to 20 knots. Cloudy. Light snow
likely early in the morning...then a chance of light snow in the
late morning and early afternoon. Waves 2 feet or less.
.THURSDAY NIGHT...Northwest winds 10 to 15 knots. Mostly cloudy
early in the evening becoming partly cloudy. Waves 2 feet or less.
.FRIDAY...Northwest winds 10 to 15 knots becoming north 5 to 10
knots in the evening. Mostly sunny becoming clear. Waves 2 feet or
less.
.SATURDAY...Light and variable winds. Mostly clear. Waves 2 feet or
less.
.SUNDAY...Light and variable winds. Mostly clear. Waves nearly calm.

$$

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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