Great Lakes Forecast
Issued by NWS

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FZUS63 KDTX 200255
GLFSC

LAKE ST CLAIR FORECAST
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
955 PM EST SUN FEB 19 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...HIGH PRESSURE...30.10 INCHES...WILL BUILD TO 30.30
INCHES TONIGHT AND THEN MOVE EASTWARD MONDAY. THE NEXT LOW IS
EXPECTED TO MOVE NORTHEAST FROM MANITOBA INTO ONTARIO AT 29.80
INCHES BEFORE A SECOND LOW PRESSURE SYSTEM...29.50 INCHES...
ENTERS EAST FROM THE NORTH CENTRAL PLAINS INTO THE NORTHERN GREAT
LAKES WEDNESDAY INTO THURSDAY.

LCZ460-200915-
LAKE ST CLAIR-
955 PM EST SUN FEB 19 2017

.REST OF TONIGHT...NORTHEAST WINDS 5 TO 10 KNOTS...BECOMING LIGHT
AND VARIABLE. PARTLY CLOUDY. WAVES 2 FEET OR LESS.
.MONDAY...LIGHT AND VARIABLE WINDS...BECOMING SOUTHEAST 5 TO
10 KNOTS IN THE LATE MORNING AND AFTERNOON. PARTLY SUNNY. WAVES
2 FEET OR LESS.
.MONDAY NIGHT...SOUTHEAST WINDS 5 TO 10 KNOTS...INCREASING TO 10 TO
15 KNOTS IN THE LATE EVENING AND OVERNIGHT. PARTLY CLOUDY IN THE
EVENING, THEN MOSTLY CLOUDY WITH A CHANCE OF LIGHT RAIN AFTER
MIDNIGHT. WAVES 2 FEET OR LESS.
.TUESDAY...SOUTHWEST WINDS 10 TO 15 KNOTS...BECOMING WEST 5 TO
10 KNOTS IN THE AFTERNOON. MOSTLY CLOUDY UNTIL LATE AFTERNOON...
BECOMING MOSTLY SUNNY. RAIN LIKELY UNTIL LATE AFTERNOON,...THEN A
CHANCE OF LIGHT RAIN LATE IN THE AFTERNOON. WAVES 2 FEET OR LESS.
.TUESDAY NIGHT...SOUTHWEST WINDS 5 TO 10 KNOTS. MOSTLY CLEAR. WAVES
2 FEET OR LESS.
.WEDNESDAY...SOUTHWEST WINDS 5 TO 10 KNOTS...INCREASING TO 10 TO
15 KNOTS IN THE AFTERNOON AND EVENING. MOSTLY SUNNY...BECOMING SUNNY
LATE IN THE MORNING...BECOMING MOSTLY SUNNY...BECOMING PARTLY CLOUDY
IN THE EVENING. WAVES 2 FEET OR LESS.
.THURSDAY...NORTHEAST WINDS 10 TO 15 KNOTS. PARTLY CLOUDY. WAVES
2 FEET OR LESS.
.FRIDAY...SOUTH WINDS 10 TO 15 KNOTS. RAIN, POSSIBLE SNOW AND
THUNDERSTORMS LIKELY. WAVES 2 FEET OR LESS.

$$

BT

EXPERIMENTAL MODERNIZED OPEN LAKE FORECAST IS AVAILABLE ONLINE AT
WEATHER.GOV/DTX/GLFTABLESC (ALL LOWER CASE)

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



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