Great Lakes Forecast
Issued by NWS

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FZUS63 KDTX 181459
GLFSC

Lake St Clair Forecast
National Weather Service Detroit/Pontiac MI
959 AM EST Mon Dec 18 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...The next low pressure system, 29.90 inches, will move
from central Canada through Hudson Bay tonight. This low will drag
a cold front across the northern Great Lakes on Tuesday. The
strength of this front will make gale force wind gusts possible
Monday night through Tuesday night. Winds will ease as high
pressure builds into the region Wednesday.

LCZ460-182115-
Lake St Clair-
959 AM EST Mon Dec 18 2017

.REST OF TODAY...Southwest winds 10 to 15 knots diminishing to 5 to
10 knots early in the afternoon...then increasing to 10 to 15 knots
late in the afternoon. Mostly cloudy. Patchy fog. A chance of
light showers.
.TONIGHT...Southwest winds 10 to 15 knots increasing to 15 to 20
knots early in the morning. Mostly cloudy.
.TUESDAY...West winds 15 to 20 knots diminishing to 10 to 15 knots
late in the afternoon. Partly sunny.
.TUESDAY NIGHT...West winds 10 to 15 knots. Mostly clear.
.WEDNESDAY...Northwest winds 5 to 10 knots becoming light and
variable. Mostly sunny in the morning becoming partly cloudy.
.THURSDAY...East winds 5 to 10 knots. Mostly cloudy.
.FRIDAY...South winds 10 to 15 knots. Cloudy with showers likely and
a chance of snow showers.

Waves omitted due to ice coverage.

$$

BT

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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