Great Lakes Forecast
Issued by NWS

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FZUS63 KDTX 300800
GLFSC

LAKE ST CLAIR FORECAST
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
400 AM EDT SAT AUG 30 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...LOW PRESSURE...MEASURING 29.70 INCHES...WILL TRACK FROM
CENTRAL WISCONSIN TODAY TO THE NORTH SHORE OF LAKE HURON TONIGHT. IT
WILL PULL A WEAK COLD FRONT OVER LAKE HURON AND LOWER MICHIGAN
SUNDAY INTO SUNDAY NIGHT. THE MOST UNSETTLED WEATHER IS EXPECTED
TODAY DUE TO A MODERATE SOUTHWEST WIND AND SCATTERED TO NUMEROUS
THUNDERSTORMS. QUIETER WEATHER IS THEN EXPECTED SUNDAY AND SUNDAY
NIGHT AS THE FRONT STALLS AND RETURNS NORTH WARM FRONT AHEAD OF THE
NEXT LOW PRESSURE SYSTEM DUE IN THE AREA MONDAY INTO TUESDAY.

LCZ460-302015-
LAKE ST CLAIR-
400 AM EDT SAT AUG 30 2014

.TODAY...SOUTHWEST WINDS 10 TO 15 KNOTS...INCREASING TO 15 TO
20 KNOTS BY MID AFTERNOON. MOSTLY CLOUDY WITH SCATTERED SHOWERS AND
THUNDERSTORMS. SOME THUNDERSTORMS MAY PRODUCE HEAVY RAINFALL. WAVES
1 TO 3 FEET.
.TONIGHT...SOUTHWEST WINDS 15 TO 20 KNOTS...DIMINISHING TO 10 TO
15 KNOTS AFTER MIDNIGHT. NUMEROUS SHOWERS AND SCATTERED
THUNDERSTORMS. CLOUDY. SOME THUNDERSTORMS MAY PRODUCE HEAVY RAINFALL
THROUGH MIDNIGHT. WAVES 1 TO 3 FEET.
.SUNDAY...SOUTHWEST WINDS 5 TO 10 KNOTS. A CHANCE OF SHOWERS AND
THUNDERSTORMS THROUGH EARLY AFTERNOON. MOSTLY CLOUDY. WAVES 2 FEET
OR LESS.
.SUNDAY NIGHT...SOUTH WINDS 5 TO 10 KNOTS EARLY IN THE EVENING...
BECOMING LIGHT AND VARIABLE...THEN BECOMING SOUTH 5 TO 10 KNOTS
LATE. PARTLY CLOUDY. WAVES 2 FEET OR LESS.
.MONDAY...SOUTHWEST WINDS 10 TO 15 KNOTS. SHOWERS AND THUNDERSTORMS
LIKELY BY MID AFTERNOON. PARTLY SUNNY...BECOMING MOSTLY CLOUDY.
WAVES 2 FEET OR LESS.
.TUESDAY...WEST WINDS 10 TO 15 KNOTS. A CHANCE OF SHOWERS AND
THUNDERSTORMS. PARTLY CLOUDY. WAVES 2 FEET OR LESS.
.WEDNESDAY...SOUTH WINDS 5 TO 10 KNOTS. MOSTLY CLEAR. WAVES 2 FEET
OR LESS.

$$

BT

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







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