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168
FZUS63 KDTX 180257
GLFSC

Lake St Clair Forecast
National Weather Service Detroit/Pontiac MI
957 PM EST Thu Jan 17 2019

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 cold front moves through the central Great
Lakes tonight followed by high pressure, 30.60 inches, moving
across Ontario. The next low pressure system, 29.50 inches,
tracks through the southern Ohio Valley leaving the bulk of the
Great Lakes in between with northeast flow. Another much stronger
arctic cold front will then surge into the area late this weekend,
bringing gusty north wind, building waves and freezing spray.

LCZ460-180915-
Lake St Clair-
957 PM EST Thu Jan 17 2019

.REST OF TONIGHT...Southwest winds 5 to 10 knots veering to the west
after midnight. Mostly cloudy. A chance of light snow in the late
evening and early morning. Waves 2 feet or less.
.FRIDAY...Northwest winds 5 to 10 knots. Partly sunny. Waves 2 feet
or less.
.FRIDAY NIGHT...North winds 5 to 10 knots becoming northeast 10 to
15 knots in the late evening and overnight. Light snow after
midnight. Waves 2 feet or less.
.SATURDAY...Northeast winds 10 to 15 knots increasing to 20 to 25
knots. Snow in the morning...then light snow likely in the
afternoon. Waves 2 feet or less.
.SATURDAY NIGHT...North winds 20 to 25 knots. Gusts to 30 knots
early in the morning. Cloudy until early morning becoming partly
cloudy. Light snow likely early in the evening...then a chance of
light snow in the late evening and early morning. Waves 1 to 3 feet.
A Small Craft Advisory may be needed.
.SUNDAY...North winds 20 to 25 knots diminishing to 15 to 20 knots
in the afternoon and evening. Mostly cloudy early in the morning
becoming partly cloudy. Waves 1 to 3 feet.
.MONDAY...Southeast winds 10 to 15 knots. Partly cloudy. Waves 2
feet or less.
.TUESDAY...Southwest winds 10 to 15 knots. Mostly cloudy with snow
likely. Waves 2 feet or less.

$$

BT

Experimental modernized open lake forecast is available online at
weather.gov/dtx/glftablesc

Graphical marine forecasts are available at weather.gov/greatlakes

National Weather Service Weather Forecast Office