Great Lakes Forecast
Issued by NWS

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FZUS63 KDTX 251939
GLFSC

LAKE ST CLAIR FORECAST
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
340 PM EDT MON AUG 25 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...AVERAGING 29.60 INCHES...OVER ONTARIO
WILL DRAG A SLOW MOVING COLD FRONT ACROSS THE REGION TONIGHT INTO
TUESDAY AS IT TRACKS INTO EASTERN CANADA. HIGH PRESSURE OF 30.10
INCHES WILL THEN BUILD INTO THE CENTRAL GREAT LAKES WEDNESDAY
THROUGH THURSDAY.

LCZ460-260800-
LAKE ST CLAIR-
340 PM EDT MON AUG 25 2014

.TONIGHT...SOUTH WINDS 5 TO 10 KNOTS. PARTLY CLOUDY. WAVES 2 FEET OR
LESS.
.TUESDAY...SOUTHWEST WINDS 5 TO 10 KNOTS...INCREASING TO 10 TO
15 KNOTS BY EARLY AFTERNOON...THEN DIMINISHING TO 5 TO 10 KNOTS
LATE. PARTLY SUNNY WITH A CHANCE OF SHOWERS AND THUNDERSTORMS. WAVES
2 FEET OR LESS.
.TUESDAY NIGHT...WEST WINDS 5 TO 10 KNOTS...VEERING TO THE NORTHWEST
BY MIDNIGHT...THEN BECOMING NORTH 10 TO 15 KNOTS AFTER MIDNIGHT...
DIMINISHING TO 5 TO 10 KNOTS LATE. PARTLY CLOUDY WITH A CHANCE OF
SHOWERS AND THUNDERSTORMS. WAVES 2 FEET OR LESS.
.WEDNESDAY...NORTHWEST WINDS 5 TO 10 KNOTS. PARTLY SUNNY. WAVES
2 FEET OR LESS.
.WEDNESDAY NIGHT...NORTH WINDS 5 TO 10 KNOTS. PARTLY CLOUDY. WAVES
2 FEET OR LESS.
.THURSDAY...NORTH WINDS 5 TO 10 KNOTS...VEERING TO THE EAST THROUGH
MIDNIGHT. PARTLY SUNNY...BECOMING MOSTLY SUNNY BY LATE MORNING...
BECOMING PARTLY CLOUDY. WAVES 2 FEET OR LESS.
.FRIDAY...SOUTH WINDS 5 TO 10 KNOTS. A CHANCE OF LIGHT SHOWERS.
PARTLY CLOUDY. WAVES 2 FEET OR LESS.
.SATURDAY...WEST WINDS 5 TO 10 KNOTS. A CHANCE OF SHOWERS AND
THUNDERSTORMS. PARTLY CLOUDY. WAVES 2 FEET OR LESS.

$$

SF

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





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