Great Lakes Forecast
Issued by NWS

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FZUS63 KDTX 191339 RRA
GLFSC

LAKE ST CLAIR FORECAST
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
938 AM EDT TUE JUL 19 2016

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...AVERAGING 30.10 INCHES...WILL
MAINTAIN AN INFLUENCE OVER THE GREAT LAKES REGION THROUGH THE MIDDLE
OF THE WEEK. A WEAK SURFACE TROUGH IS EXPECTED TO TAKE A GRADUAL
HOLD OF THE UPPER MISSISSIPPI RIVER VALLEY AND LAKE SUPERIOR
VICINITY AT THE END OF THE WEEK.

LCZ460-192000-
LAKE ST CLAIR-
938 AM EDT TUE JUL 19 2016

.REST OF TODAY...LIGHT AND VARIABLE WINDS...BECOMING NORTHEAST 5 TO
10 KNOTS BY MID AFTERNOON. MOSTLY SUNNY. WAVES 2 FEET OR LESS.
.TONIGHT...EAST WINDS 5 TO 10 KNOTS THROUGH MIDNIGHT...BECOMING
LIGHT AND VARIABLE OVERNIGHT. CLEAR. WAVES 2 FEET OR LESS.
.WEDNESDAY...LIGHT AND VARIABLE WINDS...BECOMING SOUTH 5 TO 10 KNOTS
BY LATE MORNING. MOSTLY SUNNY. WAVES 2 FEET OR LESS.
.WEDNESDAY NIGHT...SOUTH WINDS 5 TO 10 KNOTS THROUGH MIDNIGHT...
BECOMING LIGHT AND VARIABLE OVERNIGHT. PARTLY CLOUDY. WAVES 2 FEET
OR LESS.
.THURSDAY...SOUTHWEST WINDS 10 TO 15 KNOTS...DIMINISHING TO 5 TO
10 KNOTS THROUGH MIDNIGHT. MOSTLY SUNNY...BECOMING PARTLY SUNNY BY
LATE MORNING...BECOMING MOSTLY CLEAR. A CHANCE OF SHOWERS AND
THUNDERSTORMS. WAVES 2 FEET OR LESS.
.FRIDAY...WEST WINDS 5 TO 10 KNOTS. PARTLY CLOUDY. A CHANCE OF
SHOWERS AND THUNDERSTORMS. WAVES 2 FEET OR LESS.
.SATURDAY...SOUTHWEST WINDS 5 TO 10 KNOTS. MOSTLY CLEAR. A CHANCE OF
SHOWERS AND THUNDERSTORMS. WAVES 2 FEET OR LESS.

$$

HLO

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



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