Great Lakes Forecast
Issued by NWS

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FZUS63 KDTX 240246
GLFSC

LAKE ST CLAIR FORECAST
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
946 PM EST FRI JAN 23 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...LOW PRESSURE WILL TRACK FROM ONTARIO TO QUEBEC
TONIGHT...DEEPENING TO 29.30 INCHES. THE PASSAGE OF THIS SYSTEM TO
OUR NORTH WILL PUSH A VERY WEAK COLD FRONT INTO CENTRAL GREAT LAKES
TONIGHT...BUT DO LITTLE MORE THAN BRING SNOW SHOWERS TO LAKE HURON.
A SECOND...STRONGER...COLD FRONT WILL THEN DROP THROUGH THE AREA
LATE SATURDAY AND SATURDAY NIGHT BEFORE ANOTHER LOW PRESSURE SYSTEM
DIVES WEST OF THE GREAT LAKES AND ACROSS THE OHIO VALLEY ON SUNDAY.

LCZ460-240930-
LAKE ST CLAIR-
946 PM EST FRI JAN 23 2015

.REST OF TONIGHT...SOUTHWEST WINDS 5 TO 10 KNOTS. MOSTLY CLEAR...
BECOMING MOSTLY CLOUDY OVERNIGHT.
.SATURDAY...WEST WINDS 5 TO 10 KNOTS. CLOUDY WITH A CHANCE OF LIGHT
SNOW SHOWERS. DRIZZLE.
.SATURDAY NIGHT...NORTHWEST WINDS 5 TO 10 KNOTS. MOSTLY CLOUDY.
.SUNDAY...NORTH WINDS 5 TO 10 KNOTS...VEERING TO THE EAST LATE IN
THE MORNING...THEN INCREASING TO 10 TO 15 KNOTS BY AFTERNOON. CLOUDY
WITH A CHANCE OF LIGHT SNOW.
.SUNDAY NIGHT...NORTHEAST WINDS 10 TO 15 KNOTS...DIMINISHING TO 5 TO
10 KNOTS LATE. MOSTLY CLOUDY. A CHANCE OF LIGHT SNOW SHOWERS IN THE
EVENING.
.MONDAY...NORTHEAST WINDS 5 TO 10 KNOTS. MOSTLY SUNNY THROUGH MID
AFTERNOON...BECOMING PARTLY CLOUDY.
.TUESDAY...NORTH WINDS 5 TO 10 KNOTS. PARTLY CLOUDY.
.WEDNESDAY...SOUTH WINDS 5 TO 10 KNOTS. PARTLY CLOUDY.

WAVES OMITTED DUE TO ICE COVERAGE.

$$

MR

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


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