Great Lakes Forecast
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004
FZUS63 KDTX 210145
GLFSC

Lake St Clair Forecast
National Weather Service Detroit/Pontiac MI
941 PM EDT MON AUG 20 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...A weak ridge of high pressure, 30.00 inches, will
continue to pull east of the region this afternoon. Low pressure
over the mid Mississippi valley, 29.60 inches, will deepen to at
least 29.40 inches, as it tracks northeast across the Great Lakes
tonight and into Tuesday. In its wake, pressure will build to
30.20 inches as higher pressure settles over the east-central
United States.

LCZ460-210800-
Lake St Clair-
941 PM EDT MON AUG 20 2018

.REST OF TONIGHT...Southeast winds 10 to 15 knots. Mostly cloudy. A
chance of light showers this evening...then showers and a chance of
thunderstorms after midnight. Waves 2 feet or less.
.TUESDAY...South winds 10 to 15 knots veering to the southwest late
in the afternoon. Showers and a chance of thunderstorms. Waves 2
feet or less.
.TUESDAY NIGHT...Northwest winds 10 to 15 knots. Showers and a
chance of thunderstorms early in the evening...then partly cloudy
with a chance of light showers in the late evening and early
morning. Partly cloudy early in the morning. Waves 2 feet or less.
.WEDNESDAY...North winds 10 to 15 knots. Partly sunny. Waves 2 feet
or less.
.WEDNESDAY NIGHT...North winds 10 to 15 knots becoming northwest 5
to 10 knots in the late evening and overnight. Mostly clear. Waves 2
feet or less.
.THURSDAY...Northwest winds 5 to 10 knots in the morning becoming
light and variable...then becoming southwest 5 to 10 knots in the
evening. Clear. Waves 2 feet or less.
.FRIDAY...South winds 5 to 10 knots. Mostly clear. Waves 2 feet or
less.
.SATURDAY...Southwest winds 10 to 15 knots. Partly cloudy. A chance
of showers and thunderstorms. Waves 2 feet or less.

$$

CB

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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