Great Lakes Forecast
Issued by NWS

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FZUS63 KDTX 202056
GLFSC

LAKE ST CLAIR FORECAST
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
356 PM EST TUE JAN 20 2015

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 OF 30.20 INCHES WILL CONTINUE TO
DOMINATE THE NORTHERN GREAT LAKES THROUGH THURSDAY. THE NEXT
DISTURBANCE ARRIVES ON FRIDAY EVENING AS A FRONTAL
SYSTEM...AVERAGING 29.50 INCHES...SWINGS ACROSS THE EASTERN GREAT
LAKES.

LCZ460-210915-
LAKE ST CLAIR-
356 PM EST TUE JAN 20 2015

.TONIGHT...LIGHT AND VARIABLE WINDS...BECOMING EAST 5 TO 10 KNOTS
LATE. MOSTLY CLOUDY...BECOMING PARTLY CLOUDY BY LATE EVENING...
BECOMING MOSTLY CLOUDY OVERNIGHT.
.WEDNESDAY...NORTHEAST WINDS 5 TO 10 KNOTS. LIGHT SNOW LIKELY IN THE
MORNING...THEN LIGHT SNOW BY AFTERNOON.
.WEDNESDAY NIGHT...NORTH WINDS 5 TO 10 KNOTS IN THE EVENING...
BECOMING LIGHT AND VARIABLE OVERNIGHT. CLOUDY. A CHANCE OF LIGHT
SNOW SHOWERS IN THE EVENING.
.THURSDAY...LIGHT AND VARIABLE WINDS...BECOMING WEST 5 TO 10 KNOTS.
PARTLY SUNNY.
.THURSDAY NIGHT...SOUTHWEST WINDS 5 TO 10 KNOTS. PARTLY CLOUDY.
.FRIDAY...SOUTHWEST WINDS 10 TO 15 KNOTS...DIMINISHING TO 5 TO
10 KNOTS BY EVENING. MOSTLY SUNNY THROUGH MID AFTERNOON...BECOMING
PARTLY CLOUDY.
.SATURDAY...NORTHWEST WINDS 5 TO 10 KNOTS. PARTLY CLOUDY.
.SUNDAY...NORTHEAST WINDS 5 TO 10 KNOTS. PARTLY CLOUDY.

WAVES OMITTED DUE TO ICE COVERAGE.

$$

RK

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


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