Great Lakes Forecast
Issued by NWS

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000
FZUS63 KDTX 041945
GLFSC

LAKE ST CLAIR FORECAST
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
342 PM EDT FRI JUL 4 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...30.30 INCHES...WILL MOVE FROM LOWER
MICHIGAN TONIGHT TO THE MID ATLANTIC BY SATURDAY NIGHT. LOW
PRESSURE...29.60 INCHES...IS FORECAST TO DEVELOP OVER CENTRAL CANADA
ON SATURDAY AND MOVE ACROSS NORTHERN ONTARIO SUNDAY
NIGHT...DEEPENING TO 29.40 INCHES. AN ASSOCIATED COLD FRONT WILL BE
PULLED ACROSS LAKE HURON EARLY MONDAY MORNING. A LINGERING SURFACE
TROUGH WILL THEN HOLD ACROSS THE GREAT LAKES INTO TUESDAY AS THE LOW
PRESSURE SYSTEM LIFTS INTO SOUTHERN QUEBEC.

LCZ460-050800-
LAKE ST CLAIR-
342 PM EDT FRI JUL 4 2014

.TONIGHT...LIGHT AND VARIABLE WINDS. CLEAR. WAVES 2 FEET OR LESS.
.SATURDAY...SOUTHWEST WINDS 5 TO 10 KNOTS...INCREASING TO 10 TO
15 KNOTS LATE. MOSTLY SUNNY. WAVES 2 FEET OR LESS.
.SATURDAY NIGHT...SOUTHWEST WINDS 10 TO 15 KNOTS. MOSTLY CLEAR.
WAVES 2 FEET OR LESS.
.SUNDAY...SOUTHWEST WINDS 10 TO 15 KNOTS. PARTLY SUNNY. WAVES 2 FEET
OR LESS.
.SUNDAY NIGHT...SOUTHWEST WINDS 10 TO 15 KNOTS. A CHANCE OF SHOWERS
AND THUNDERSTORMS. PARTLY CLOUDY EARLY IN THE EVENING...BECOMING
MOSTLY CLOUDY OVERNIGHT. WAVES 2 FEET OR LESS.
.MONDAY...WEST WINDS 10 TO 15 KNOTS...DIMINISHING TO 5 TO 10 KNOTS
THROUGH MIDNIGHT. MOSTLY CLOUDY WITH A CHANCE OF SHOWERS AND
THUNDERSTORMS THROUGH EARLY AFTERNOON...THEN PARTLY CLOUDY BY MID
AFTERNOON. WAVES 2 FEET OR LESS.
.TUESDAY...WEST WINDS 5 TO 10 KNOTS. A CHANCE OF SHOWERS AND
THUNDERSTORMS. PARTLY CLOUDY. WAVES 2 FEET OR LESS.
.WEDNESDAY...WEST WINDS 5 TO 10 KNOTS. A CHANCE OF SHOWERS AND
THUNDERSTORMS. PARTLY CLOUDY. WAVES 2 FEET OR LESS.

$$

DRK/SC

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





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