Great Lakes Forecast
Issued by NWS

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FZUS63 KDTX 121332
GLFSC

LAKE ST CLAIR FORECAST
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
931 AM EDT FRI SEP 12 2014

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...ORGANIZING LOW PRESSURE CURRENTLY OVER THE TENNESSEE
VALLEY WILL STRENGTHEN TO 30.00 INCHES AS IT TRACKS NORTHEAST ACROSS
THE OHIO VALLEY TONIGHT.  THIS LOW WILL SHIFT QUICKLY INTO QUEBEC AS
HIGH PRESSURE OF 30.30 INCHES BUILDS INTO THE GREAT LAKES ON
SATURDAY.  THIS HIGH WILL SLOWLY DRIFT THROUGH THE REGION THROUGHOUT
THE WEEKEND.

LCZ460-122000-
LAKE ST CLAIR-
931 AM EDT FRI SEP 12 2014

.REST OF TODAY...NORTHEAST WINDS 5 TO 15 KNOTS. MOSTLY CLOUDY. WAVES
2 FEET OR LESS.
.TONIGHT...NORTHEAST WINDS 5 TO 10 KNOTS...INCREASING TO 10 TO
15 KNOTS AFTER MIDNIGHT. A CHANCE OF LIGHT SHOWERS BY MIDNIGHT.
LIGHT SHOWERS LIKELY AFTER MIDNIGHT. CLOUDY. WAVES 2 FEET OR LESS.
.SATURDAY...NORTH WINDS 10 TO 15 KNOTS...DIMINISHING TO 5 TO
10 KNOTS BY LATE MORNING...THEN INCREASING TO 10 TO 15 KNOTS BY MID
AFTERNOON. CLOUDY WITH LIGHT SHOWERS LIKELY THROUGH EARLY
AFTERNOON...THEN PARTLY SUNNY WITH A CHANCE OF LIGHT SHOWERS BY
EARLY AFTERNOON. PARTLY SUNNY LATE. WAVES 2 FEET OR LESS.
.SATURDAY NIGHT...NORTH WINDS 10 TO 15 KNOTS...BECOMING NORTHEAST
5 TO 10 KNOTS LATE. MOSTLY CLEAR. WAVES 2 FEET OR LESS.
.SUNDAY...EAST WINDS 5 TO 10 KNOTS...VEERING TO THE SOUTH BY MID
AFTERNOON. MOSTLY CLEAR. WAVES 2 FEET OR LESS.
.MONDAY...WEST WINDS 5 TO 10 KNOTS. A CHANCE OF LIGHT SHOWERS.
PARTLY CLOUDY. WAVES 2 FEET OR LESS.
.TUESDAY...NORTH WINDS 5 TO 10 KNOTS. A CHANCE OF LIGHT SHOWERS.
PARTLY CLOUDY. WAVES 2 FEET OR LESS.

$$

SC

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





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