Great Lakes Forecast
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FZUS63 KDTX 231337 RRA
GLFSC

Lake St Clair Forecast
National Weather Service Detroit/Pontiac MI
936 AM EDT MON OCT 23 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, 29.70 inches, over the Ohio Valley this
morning will deepen to 29.50 inches as it lifts into southern
Michigan this evening. The low is then forecast to rapidly deepen to
29.10 inches as lifts into the straits region late tonight. There
will then be a slow but steady weakening of the low across the
northern Great Lakes on Tuesday before it lifts north of the region
Tuesday night into Wednesday.

LCZ460-232000-
Lake St Clair-
936 AM EDT MON OCT 23 2017

...SMALL CRAFT ADVISORY IN EFFECT FROM 6 PM EDT THIS EVENING
THROUGH TUESDAY MORNING...
...GALE WATCH IN EFFECT FROM TUESDAY AFTERNOON THROUGH LATE
TUESDAY NIGHT...

.REST OF TODAY...Southeast winds 10 to 15 knots increasing to 15 to
20 knots late in the afternoon. A chance of light rain late in the
morning...then rain in the afternoon. Waves 1 to 3 feet.
.TONIGHT...South winds 20 to 25 knots with gusts to 30 knots. Rain.
Waves 2 to 4 feet.
.TUESDAY...Southwest winds 20 to 25 knots increasing to 30 knots
late in the afternoon. Gusts to 35 knot gales. Mostly cloudy. Light
showers likely until late afternoon...then a chance of light showers
late in the afternoon. Waves 2 to 4 feet.  A Gale Warning may be
needed.
.TUESDAY NIGHT...Southwest winds to 30 knots with gusts to 35 knot
gales diminishing to 20 to 25 knots after midnight. Cloudy with a
chance of light showers. Waves 2 to 4 feet.
.WEDNESDAY...West winds 15 to 20 knots diminishing to 10 to 15 knots
in the evening. Mostly cloudy becoming partly cloudy. A chance of
light showers. Waves 1 to 3 feet.
.THURSDAY...South winds 15 to 20 knots. Partly cloudy. Waves 2 feet
or less.
.FRIDAY...West winds 15 to 20 knots. Partly cloudy. A chance of
showers. Waves 1 to 3 feet.

$$

MR

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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