Great Lakes Forecast
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809
FZUS63 KDTX 171420
GLFSC

Lake St Clair Forecast
National Weather Service Detroit/Pontiac MI
920 AM EST Sat Feb 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...High pressure averaging 30.30 inches is spread across the southern
Great Lakes and Ohio Valley and will push eastward reaching the east
coast this afternoon. The next low pressure system averaging 29.40
inches will track slowly across Hudson Bay today before pulling a
weak cold front across the eastern lakes early tonight. High
pressure will again track through the Ohio Valley on Sunday
averaging 30.20 inches across the Great Lakes. Large low pressure
system developing over the plains will then target the region Monday
through mid week.

LCZ460-172115-
Lake St Clair-
920 AM EST Sat Feb 17 2018

.REST OF TODAY...South winds 10 to 15 knots. Cloudy.
.TONIGHT...South winds 5 to 10 knots becoming southwest 10 to 15
knots in the late evening and early morning...then becoming west 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.
.SUNDAY...Southwest winds 5 to 10 knots becoming south 10 to 15
knots late in the afternoon. Mostly sunny.
.SUNDAY NIGHT...South winds 10 to 15 knots diminishing to 5 to 10
knots early in the morning. Partly cloudy.
.MONDAY...South winds 5 to 10 knots increasing to 10 to 15 knots in
the afternoon and evening. Showers.
.TUESDAY...Southwest winds 10 to 15 knots. Showers and a chance of
thunderstorms.
.WEDNESDAY...North winds 10 to 15 knots. Showers and a chance of
snow showers.

Waves omitted due to ice coverage.

$$

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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