Great Lakes Forecast
Issued by NWS

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FZUS63 KDTX 180759 RRA
GLFSC

LAKE ST CLAIR FORECAST
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
359 AM EDT SAT MAR 18 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...LOW PRESSURE WILL WEAKEN TODAY...AVERAGING 30.30
INCHES...AS IT TRACKS FROM SOUTHEAST MICHIGAN THROUGH THE EASTERN
GREAT LAKES. A RIDGE OF HIGH PRESSURE...30.40 INCHES...WILL THEN
BUILD INTO THE CENTRAL GREAT LAKES LATE TONIGHT AND SUNDAY. LOW
PRESSURE DROPPING THROUGH HUDSON BAY WILL DRAG A COLD FRONT THROUGH
THE AREA ON MONDAY.

LCZ460-182000-
LAKE ST CLAIR-
359 AM EDT SAT MAR 18 2017

.TODAY...LIGHT AND VARIABLE WINDS...BECOMING NORTHWEST 5 TO 10 KNOTS
IN THE LATE MORNING AND AFTERNOON. AREAS OF DRIZZLE UNTIL LATE
AFTERNOON. LIGHT RAIN AND A CHANCE OF LIGHT SNOW.
.TONIGHT...NORTHWEST WINDS 5 TO 10 KNOTS. MOSTLY CLOUDY. A CHANCE OF
LIGHT RAIN AND SNOW IN THE EVENING.
.SUNDAY...NORTH WINDS 5 TO 10 KNOTS UNTIL LATE AFTERNOON...BECOMING
LIGHT AND VARIABLE. PARTLY SUNNY.
.SUNDAY NIGHT...LIGHT AND VARIABLE WINDS...BECOMING SOUTH 5 TO
10 KNOTS IN THE LATE EVENING AND OVERNIGHT. PARTLY CLOUDY.
.MONDAY...SOUTH WINDS 5 TO 10 KNOTS...VEERING TO THE WEST IN THE
EVENING. MOSTLY CLOUDY. A CHANCE OF LIGHT RAIN.
.TUESDAY...NORTHWEST WINDS 10 TO 15 KNOTS. PARTLY CLOUDY.
.WEDNESDAY...NORTH WINDS 10 TO 15 KNOTS. MOSTLY CLEAR.

WAVES OMITTED DUE TO ICE COVERAGE.

$$

CB

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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