Great Lakes Forecast
Issued by NWS

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FZUS63 KDTX 191502
GLFSC

LAKE ST CLAIR FORECAST
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
1002 AM EST FRI DEC 19 2014

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...A WEAK SURFACE TROUGH...AVERAGING 30.20 INCHES...WILL
PROGRESS SOUTHEAST OF THE AREA TODAY. HIGH PRESSURE OF 30.30 INCHES
WILL THEN BUILD INTO THE REGION LATER TODAY INTO TONIGHT AND PERSIST
THROUGH THE WEEKEND AS IT GRADUALLY SHIFTS EAST THROUGH THE CENTRAL
AND EASTERN GREAT LAKES.

LCZ460-192115-
LAKE ST CLAIR-
1002 AM EST FRI DEC 19 2014

.REST OF TODAY...NORTHWEST WINDS 5 TO 10 KNOTS BY LATE MORNING...
BECOMING LIGHT AND VARIABLE. CLOUDY LATE IN THE MORNING...BECOMING
PARTLY SUNNY. WAVES 2 FEET OR LESS.
.TONIGHT...NORTHWEST WINDS 5 TO 10 KNOTS MAINLY BEFORE MIDNIGHT...
BECOMING LIGHT AND VARIABLE OVERNIGHT. PARTLY CLOUDY. WAVES 2 FEET
OR LESS.
.SATURDAY...LIGHT AND VARIABLE WINDS. PARTLY SUNNY. WAVES NEARLY
CALM.
.SATURDAY NIGHT...WEST WINDS 5 TO 10 KNOTS EARLY IN THE EVENING...
BECOMING LIGHT AND VARIABLE...THEN BECOMING SOUTHWEST 5 TO 10 KNOTS
AFTER MIDNIGHT...BECOMING LIGHT AND VARIABLE. PARTLY CLOUDY. WAVES
2 FEET OR LESS.
.SUNDAY...LIGHT AND VARIABLE WINDS...BECOMING SOUTH 5 TO 10 KNOTS BY
AFTERNOON. PARTLY CLOUDY. WAVES NEARLY CALM.
.MONDAY...SOUTHEAST WINDS 5 TO 10 KNOTS. MOSTLY CLOUDY. A CHANCE OF
LIGHT SHOWERS. WAVES 2 FEET OR LESS.
.TUESDAY...SOUTHEAST WINDS 10 TO 15 KNOTS. CLOUDY WITH LIGHT RAIN
AND SNOW SHOWERS LIKELY. WAVES 2 FEET OR LESS.

$$

RK

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



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