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194
FZUS63 KDTX 180801
GLFSC

LAKE ST CLAIR FORECAST
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
354 AM EDT THU SEP 18 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...HIGH PRESSURE OF 30.30 INCHES CENTERED OVER THE NORTHERN
GREAT LAKES TODAY WILL DRIFT EASTWARD BY FRIDAY. THE NEXT LOW
PRESSURE SYSTEM...AVERAGING 29.50 INCHES...WILL THEN SLIDE ACROSS
CENTRAL CANADA AND THE NORTHERN GREAT LAKES REGION ON FRIDAY NIGHT
THROUGH SUNDAY MORNING. THIS LOW WILL BRING UNSETTLED WEATHER TO THE
GREAT LAKES.

LCZ460-182000-
LAKE ST CLAIR-
354 AM EDT THU SEP 18 2014

.TODAY...NORTH WINDS 5 TO 10 KNOTS...BECOMING NORTHEAST 10 TO
15 KNOTS BY LATE MORNING. MOSTLY SUNNY. WAVES 2 FEET OR LESS.
.TONIGHT...NORTHEAST WINDS 10 TO 15 KNOTS...DIMINISHING TO 5 TO
10 KNOTS BY MIDNIGHT. MOSTLY CLEAR. WAVES 2 FEET OR LESS.
.FRIDAY...NORTHEAST WINDS 5 TO 10 KNOTS...VEERING TO THE SOUTHEAST
BY LATE MORNING. MOSTLY SUNNY. WAVES 2 FEET OR LESS.
.FRIDAY NIGHT...SOUTH WINDS 5 TO 10 KNOTS...BECOMING SOUTHWEST 10 TO
15 KNOTS LATE. MOSTLY CLEAR. WAVES 2 FEET OR LESS.
.SATURDAY...SOUTHWEST WINDS 10 TO 15 KNOTS...INCREASING TO 15 TO
20 KNOTS BY MID AFTERNOON. PARTLY SUNNY THROUGH EARLY AFTERNOON...
THEN A CHANCE OF LIGHT SHOWERS BY MID AFTERNOON. PARTLY CLOUDY WITH
SHOWERS LIKELY THROUGH MIDNIGHT. WAVES 1 TO 3 FEET.
.SUNDAY...NORTHWEST WINDS 15 TO 20 KNOTS. A CHANCE OF LIGHT SHOWERS.
PARTLY CLOUDY. WAVES 2 FEET OR LESS.
.MONDAY...NORTH WINDS 10 TO 15 KNOTS. PARTLY CLOUDY. WAVES 2 FEET OR
LESS.

$$

CB

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







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