Great Lakes Forecast
Issued by NWS

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000
FZUS63 KDTX 272053
GLFSC

LAKE ST CLAIR FORECAST
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
353 PM EST TUE JAN 27 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 AT 30.30 INCHES WILL BUILD ACROSS THE
GREAT LAKES TONIGHT THROUGH WEDNESDAY MORNING. THE NEXT BROAD AREA
OF LOW PRESSURE WILL DEVELOP OVER THE MIDWEST WEDNESDAY NIGHT AND
MOVE THROUGH LOWER MICHIGAN AND LAKE HURON THURSDAY. NORTHWEST WIND
WILL INCREASE STRONGLY THURSDAY NIGHT AS THE SYSTEM EXITS INTO
CANADA WITH GALES POSSIBLE THROUGH FRIDAY MORNING.

LCZ460-280915-
LAKE ST CLAIR-
353 PM EST TUE JAN 27 2015

.TONIGHT...NORTHWEST WINDS 5 TO 10 KNOTS MAINLY BEFORE MIDNIGHT...
BECOMING LIGHT AND VARIABLE OVERNIGHT. MOSTLY CLEAR.
.WEDNESDAY...LIGHT AND VARIABLE WINDS...BECOMING SOUTH 5 TO
10 KNOTS. PARTLY SUNNY.
.WEDNESDAY NIGHT...SOUTH WINDS 5 TO 10 KNOTS...INCREASING TO 15 TO
20 KNOTS OVERNIGHT. MOSTLY CLOUDY. LIGHT SNOW LIKELY LATE.
.THURSDAY...SOUTH WINDS 15 TO 20 KNOTS...DIMINISHING TO 10 TO
15 KNOTS LATE IN THE MORNING...THEN BECOMING SOUTHWEST 5 TO 10 KNOTS
IN THE AFTERNOON...BECOMING WEST 10 TO 15 KNOTS LATE. LIGHT FREEZING
RAIN AND SNOW EARLY...THEN LIGHT RAIN AND SNOW.
.THURSDAY NIGHT...NORTHWEST WINDS 15 TO 20 KNOTS. GUSTS TO 30 KNOTS
AFTER MIDNIGHT. MOSTLY CLOUDY WITH A CHANCE OF LIGHT SNOW IN THE
EVENING...THEN PARTLY CLOUDY AFTER MIDNIGHT.
.FRIDAY...NORTHWEST WINDS 15 TO 20 KNOTS...DIMINISHING TO 5 TO
10 KNOTS. MOSTLY CLEAR...BECOMING PARTLY CLOUDY.
.SATURDAY...SOUTH WINDS 5 TO 10 KNOTS. PARTLY CLOUDY. A CHANCE OF
LIGHT SNOW SHOWERS.
.SUNDAY...NORTH WINDS 10 TO 15 KNOTS. CLOUDY WITH A CHANCE OF LIGHT
SNOW SHOWERS.

WAVES OMITTED DUE TO ICE COVERAGE.

$$

BT

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



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