Great Lakes Forecast
Issued by NWS

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132
FZUS63 KDTX 180844
GLFSC

LAKE ST CLAIR FORECAST
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
344 AM EST WED JAN 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...LOW PRESSURE...29.80 INCHES...WILL WEAKEN OVER UPSTATE
NEW YORK TODAY. HIGH PRESSURE...30.20 INCHES...WILL MOVE FROM
MISSOURI ACROSS THE OHIO VALLEY TODAY. THE HIGH WILL THEN BUILD
ACROSS THE CENTRAL APPALACHIANS AND EASTERN GREAT LAKES ON THURSDAY.
A WEAK SURFACE TROUGH IS FORECAST TO MOVE FROM THE OHIO VALLEY INTO
THE SOUTHERN GREAT LAKES ON FRIDAY.

LCZ460-182115-
LAKE ST CLAIR-
344 AM EST WED JAN 18 2017

.TODAY...WEST WINDS 5 TO 10 KNOTS. CLOUDY.
.TONIGHT...SOUTHWEST WINDS 5 TO 10 KNOTS. MOSTLY CLOUDY.
.THURSDAY...SOUTHWEST WINDS 5 TO 10 KNOTS THROUGH MID AFTERNOON...
BECOMING LIGHT AND VARIABLE. PARTLY SUNNY.
.THURSDAY NIGHT...LIGHT AND VARIABLE WINDS...BECOMING EAST 5 TO
10 KNOTS BY LATE EVENING. PARTLY CLOUDY IN THE EVENING...BECOMING
MOSTLY CLOUDY OVERNIGHT.
.FRIDAY...EAST WINDS 5 TO 10 KNOTS...BECOMING LIGHT AND VARIABLE.
MOSTLY CLOUDY. LIGHT RAIN LIKELY IN THE MORNING...THEN A CHANCE OF
LIGHT RAIN IN THE AFTERNOON.
.SATURDAY...EAST WINDS 5 TO 10 KNOTS. MOSTLY CLOUDY.
.SUNDAY...EAST WINDS 10 TO 15 KNOTS. CLOUDY WITH A CHANCE OF RAIN.

WAVES OMITTED DUE TO ICE COVERAGE.

$$

SF

EXPERIMENTAL MODERNIZED OPEN LAKE FORECAST IS AVAILABLE ONLINE AT
WEATHER.GOV/DTX/GLFTABLESC (ALL LOWER CASE)

GRAPHICAL MARINE FORECASTS ARE AVAILABLE ONLINE AT
WEATHER.GOV/GREATLAKES (ALL LOWER CASE)



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