Great Lakes Forecast
Issued by NWS

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000
FZUS63 KDTX 241349
GLFSC

LAKE ST CLAIR FORECAST
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
949 AM EDT MON AUG 24 2015

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...SURFACE LOW PRESSURE...AVERAGING 29.50 INCHES...WILL
WEAKEN AS IT MOVES ACROSS ONTARIO TODAY AND TONIGHT. THIS WILL PUSH
A SECOND COLD FRONT THROUGH THE CENTRAL GREAT LAKES TODAY...FOLLOWED
BY ANOTHER ON TUESDAY. A RIDGE OF HIGH PRESSURE WILL THEN EXPAND
INTO THE AREA FROM THE WEST LATE ON WEDNESDAY...AND BECOME CENTERED
OVERHEAD ON THURSDAY.

LCZ460-242015-
LAKE ST CLAIR-
949 AM EDT MON AUG 24 2015

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 9 PM EDT THIS EVENING...

.REST OF TODAY...WEST WINDS 10 TO 15 KNOTS...INCREASING TO 20 TO
25 KNOTS. MOSTLY SUNNY. WAVES 1 TO 3 FEET.
.TONIGHT...WEST WINDS 15 TO 20 KNOTS...DIMINISHING TO 10 TO 15 KNOTS
BY MIDNIGHT. PARTLY CLOUDY. WAVES 2 FEET OR LESS.
.TUESDAY...WEST WINDS 10 TO 15 KNOTS...DIMINISHING TO 5 TO 10 KNOTS
BY LATE MORNING. MOSTLY CLOUDY. A CHANCE OF WATERSPOUTS. A CHANCE OF
SHOWERS BY LATE MORNING. WAVES 2 FEET OR LESS.
.TUESDAY NIGHT...NORTHWEST WINDS 10 TO 15 KNOTS. MOSTLY CLOUDY
THROUGH MIDNIGHT...BECOMING PARTLY CLOUDY OVERNIGHT. A CHANCE OF
WATERSPOUTS. WAVES 2 FEET OR LESS.
.WEDNESDAY...NORTHWEST WINDS 5 TO 10 KNOTS...VEERING TO THE NORTH
THROUGH MIDNIGHT. MOSTLY CLOUDY EARLY...THEN A CHANCE OF SHOWERS BY
LATE MORNING. PARTLY CLOUDY THROUGH MIDNIGHT. A CHANCE OF
WATERSPOUTS. WAVES 2 FEET OR LESS.
.THURSDAY...EAST WINDS 5 TO 10 KNOTS. MOSTLY CLEAR. A CHANCE OF
WATERSPOUTS AFTER MIDNIGHT. WAVES 2 FEET OR LESS.
.FRIDAY...SOUTHEAST WINDS 5 TO 10 KNOTS. MOSTLY CLEAR. WAVES 2 FEET
OR LESS.

$$

SF

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


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