Great Lakes Forecast
Issued by NWS

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000
FZUS63 KDTX 050758 RRA
GLFSC

LAKE ST CLAIR FORECAST
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
352 AM EDT WED AUG 5 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 HIGH PRESSURE...AT 30.00 INCHES...WILL EXPAND
SOUTHEASTWARD INTO THE GREAT LAKES TODAY. THE CENTER OF THE SURFACE
HIGH WILL THEN POSITION OVER SECTIONS OF LAKE HURON ON THURSDAY. A
LOW PRESSURE SYSTEM AT 29.60 INCHES WILL WEAKEN WHILE TRACKING INTO
THE NORTHERN MISSISSIPPI RIVER VALLEY THURSDAY NIGHT AND FRIDAY.

LCZ460-052000-
LAKE ST CLAIR-
352 AM EDT WED AUG 5 2015

.TODAY...NORTHWEST WINDS 5 TO 10 KNOTS. MOSTLY SUNNY. WAVES 2 FEET
OR LESS.
.TONIGHT...NORTHEAST WINDS 5 TO 10 KNOTS...VEERING TO THE EAST BY
MIDNIGHT. MOSTLY CLEAR. WAVES 2 FEET OR LESS.
.THURSDAY...NORTHEAST WINDS 5 TO 10 KNOTS...INCREASING TO 10 TO
15 KNOTS LATE. PARTLY SUNNY. WAVES 2 FEET OR LESS.
.THURSDAY NIGHT...NORTHEAST WINDS 10 TO 15 KNOTS...BECOMING NORTH
5 TO 10 KNOTS AFTER MIDNIGHT. PARTLY CLOUDY. WAVES 2 FEET OR LESS.
.FRIDAY...NORTHEAST WINDS 5 TO 10 KNOTS. PARTLY SUNNY...THEN PARTLY
CLOUDY WITH A CHANCE OF LIGHT SHOWERS THROUGH MIDNIGHT. WAVES 2 FEET
OR LESS.
.SATURDAY...SOUTHWEST WINDS 5 TO 10 KNOTS. PARTLY CLOUDY. A CHANCE
OF LIGHT SHOWERS. WAVES 2 FEET OR LESS.
.SUNDAY...SOUTH WINDS 5 TO 10 KNOTS. PARTLY CLOUDY. A CHANCE OF
SHOWERS. WAVES 2 FEET OR LESS.

$$

CB

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



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