Great Lakes Forecast
Issued by NWS

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FZUS63 KDTX 312046
GLFSC

LAKE ST CLAIR FORECAST
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
346 PM EST SAT JAN 31 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....TROUGH OF LOW PRESSURE...AVERAGING 30.10
INCHES...WILL SLOWLY DROP INTO THE SOUTHERN GREAT LAKES TONIGHT. A
LOW PRESSURE SYSTEM...AVERAGING 29.50 INCHES...WILL THEN MOVE
ACROSS THE OHIO VALLEY ON SUNDAY. HIGH PRESSURE...AVERAGING 30.30
INCHES...WILL THEN BUILD ACROSS THE GREAT LAKES ON MONDAY.

LCZ460-010915-
LAKE ST CLAIR-
346 PM EST SAT JAN 31 2015

.TONIGHT...SOUTHWEST WINDS 5 TO 10 KNOTS EARLY THIS EVENING...
BECOMING LIGHT AND VARIABLE...THEN BECOMING NORTH 5 TO 10 KNOTS
LATE. PARTLY CLOUDY EARLY THIS EVENING. LIGHT SNOW AFTER MIDNIGHT.
.SUNDAY...NORTHEAST WINDS 10 TO 15 KNOTS...INCREASING TO 15 TO
20 KNOTS BY AFTERNOON. SNOW.
.SUNDAY NIGHT...NORTHEAST WINDS 15 TO 20 KNOTS...BECOMING NORTH 20 TO
25 KNOTS BY LATE EVENING. SNOW.
.MONDAY...NORTH WINDS 15 TO 20 KNOTS...BECOMING NORTHWEST 10 TO
15 KNOTS BY AFTERNOON. MOSTLY CLOUDY IN THE MORNING...BECOMING
MOSTLY SUNNY.
.MONDAY NIGHT...SOUTHWEST WINDS 5 TO 10 KNOTS. PARTLY CLOUDY.
.TUESDAY...SOUTHWEST WINDS 10 TO 15 KNOTS...DIMINISHING TO 5 TO
10 KNOTS BY EVENING. PARTLY SUNNY IN THE MORNING...BECOMING MOSTLY
CLOUDY. A CHANCE OF LIGHT SNOW SHOWERS IN THE EVENING.
.WEDNESDAY...NORTHWEST WINDS 5 TO 10 KNOTS. MOSTLY CLOUDY. A CHANCE
OF LIGHT SNOW SHOWERS.
.THURSDAY...WEST WINDS 5 TO 10 KNOTS. MOSTLY CLEAR.

WAVES OMITTED DUE TO ICE COVERAGE.

$$

DRK

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


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