Great Lakes Forecast
Issued by NWS

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FZUS63 KDTX 201942
GLFSC

LAKE ST CLAIR FORECAST
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
342 PM EDT TUE SEP 20 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 30.20 INCHES...WILL CONTINUE
TO INFLUENCE THE GREAK LAKES REGION THIS AFTERNOON AND INTO THE
OVERNIGHT HOURS. THIS HIGH WILL SLOWLY PUSH TO THE EAST ON
WEDNESDAY. A FRONTAL BOUNDARY WILL SETTLE ACROSS NORTHERN LAKE HURON
WEDNESDAY NIGHT AND THURSDAY...AS LOW PRESSURE ORGANIZES OVER THE
PLAINS. THIS FRONTAL BOUNDARY WILL BRING THE POTENTIAL FOR
THUNDERSTORMS AS IT LINGERS ACROSS THE REGION THROUGH THE END OF THE
WEEK.

LCZ460-210815-
LAKE ST CLAIR-
342 PM EDT TUE SEP 20 2016

.TONIGHT...EAST WINDS 5 TO 10 KNOTS THROUGH MIDNIGHT...BECOMING
LIGHT AND VARIABLE OVERNIGHT. MOSTLY CLEAR. WAVES 2 FEET OR LESS.
.WEDNESDAY...SOUTH WINDS 5 TO 10 KNOTS. MOSTLY SUNNY. WAVES 2 FEET
OR LESS.
.WEDNESDAY NIGHT...SOUTHEAST WINDS 5 TO 10 KNOTS THROUGH MIDNIGHT...
BECOMING LIGHT AND VARIABLE OVERNIGHT. PARTLY CLOUDY. WAVES 2 FEET
OR LESS.
.THURSDAY...LIGHT AND VARIABLE WINDS...BECOMING SOUTH 5 TO 10 KNOTS
BY LATE MORNING. PARTLY SUNNY. WAVES 2 FEET OR LESS.
.THURSDAY NIGHT...SOUTH WINDS 5 TO 10 KNOTS THROUGH MIDNIGHT...
BECOMING LIGHT AND VARIABLE...THEN BECOMING NORTH 5 TO 10 KNOTS
LATE. PARTLY CLOUDY. WAVES 2 FEET OR LESS.
.FRIDAY...NORTH WINDS 5 TO 10 KNOTS. PARTLY CLOUDY. WAVES 2 FEET OR
LESS.
.SATURDAY...NORTHEAST WINDS 5 TO 10 KNOTS. PARTLY CLOUDY. WAVES
2 FEET OR LESS.
.SUNDAY...EAST WINDS 5 TO 10 KNOTS. MOSTLY CLEAR. WAVES 2 FEET OR
LESS.

$$

DRK

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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