Great Lakes Forecast
Issued by NWS

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000
FZUS63 KDTX 170149 RRA
GLFSC

LAKE ST CLAIR FORECAST
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
948 PM EDT TUE MAY 16 2017

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...PRESSURE WILL AVERAGE 29.80 INCHES THROUGHOUT WEDNESDAY
AS SOUTHWESTERLY WINDS...GUSTING BETWEEN 15 TO 25 KNOTS...PREVAIL
THROUGHOUT THE DAY. LOW PRESSURE...29.20 INCHES...WILL THEN PUSH
NORTHEAST FROM SOUTHERN MINNESOTA INTO SOUTHERN ONTARIO THROUGHOUT
THURSDAY...BRINGING THE CHANCE FOR RAIN AND THUNDERSTORMS OVER THE
LAKES. HIGH PRESSURE...30.40 INCHES...WILL THEN BUILD EAST OVER THE
GREAT LAKES BY AFTERNOON FRIDAY.

LCZ460-170800-
LAKE ST CLAIR-
948 PM EDT TUE MAY 16 2017

.REST OF TONIGHT...SOUTHWEST WINDS 10 TO 15 KNOTS. MOSTLY CLEAR.
WAVES 2 FEET OR LESS.
.WEDNESDAY...SOUTH WINDS 10 TO 15 KNOTS BECOMING SOUTHWEST 15 TO 20
KNOTS IN THE AFTERNOON. MOSTLY SUNNY. WAVES 1 TO 3 FEET.
.WEDNESDAY NIGHT...SOUTH WINDS 15 TO 20 KNOTS DIMINISHING TO 10 TO
15 KNOTS IN THE LATE EVENING AND OVERNIGHT. PARTLY CLOUDY. WAVES 1
TO 3 FEET.
.THURSDAY...SOUTH WINDS 10 TO 15 KNOTS BECOMING SOUTHWEST 15 TO 20
KNOTS IN THE LATE MORNING AND AFTERNOON. PARTLY SUNNY WITH A CHANCE
OF SHOWERS AND THUNDERSTORMS. WAVES 1 TO 3 FEET.
.THURSDAY NIGHT...SOUTHWEST WINDS 15 TO 20 KNOTS BECOMING WEST 10 TO
15 KNOTS IN THE LATE EVENING AND EARLY MORNING...THEN BECOMING
NORTHWEST 5 TO 10 KNOTS EARLY IN THE MORNING. PARTLY CLOUDY. A
CHANCE OF SHOWERS AND THUNDERSTORMS EARLY IN THE EVENING. WAVES 2
FEET OR LESS.
.FRIDAY...NORTH WINDS 10 TO 15 KNOTS. PARTLY SUNNY BECOMING MOSTLY
SUNNY IN THE LATE MORNING AND AFTERNOON BECOMING PARTLY CLOUDY.
WAVES 2 FEET OR LESS.
.SATURDAY...EAST WINDS 10 TO 15 KNOTS. MOSTLY CLOUDY. A CHANCE OF
SHOWERS AND THUNDERSTORMS. WAVES 2 FEET OR LESS.
.SUNDAY...SOUTHWEST WINDS 10 TO 15 KNOTS. MOSTLY CLOUDY WITH A
CHANCE OF SHOWERS AND THUNDERSTORMS. WAVES 2 FEET OR LESS.

$$

CB

EXPERIMENTAL MODERNIZED OPEN LAKE FORECAST IS AVAILABLE ONLINE AT
WEATHER.GOV/DTX/GLFTABLESC

GRAPHICAL MARINE FORECASTS ARE AVAILABLE AT WEATHER.GOV/GREATLAKES



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