Great Lakes Forecast
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FZUS63 KDTX 201502
GLFSC

Lake St Clair Forecast
National Weather Service Detroit/Pontiac MI
1002 AM EST Tue Feb 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...Low pressure of 29.90 inches will lift into northern
lower Michigan today, forcing a warm front north into northern Lake
Huron. As this low continues into Ontario tonight, a cold front will
drop south through the area. A strong high pressure system averaging
30.80 inches will then build in the area in the wake of this front
from Wednesday into Thursday.

LCZ460-202115-
Lake St Clair-
1002 AM EST Tue Feb 20 2018

.REST OF TODAY...Southwest winds 15 to 20 knots becoming south 10 to
15 knots late in the afternoon. Showers and a chance of
thunderstorms. Areas of fog in the afternoon.
.TONIGHT...South winds 10 to 15 knots increasing to 15 to 20 knots
late in the evening...then becoming southwest 10 to 15 knots after
midnight. Areas of fog early in the evening. Light showers and a
chance of thunderstorms.
.WEDNESDAY...Northwest winds 10 to 15 knots becoming north 5 to 10
knots late in the afternoon. A chance of thunderstorms early in the
morning. Light showers until late afternoon.
.WEDNESDAY NIGHT...Northeast winds 5 to 10 knots. Partly cloudy.
.THURSDAY...Northeast winds 10 to 15 knots diminishing to 5 to 10
knots in the afternoon and evening. Mostly cloudy early in the
morning becoming partly cloudy.
.FRIDAY...West winds 5 to 10 knots. Mostly cloudy with light showers
likely.
.SATURDAY...East winds 5 to 10 knots. Mostly cloudy with rain and
snow showers likely.

Waves omitted due to ice coverage.

$$

AA

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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