Great Lakes Forecast
Issued by NWS

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000
FZUS63 KDTX 151945
GLFSC

LAKE ST CLAIR FORECAST
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
345 PM EDT WED APR 15 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...AVERAGING 30.50 INCHES...WILL
SHIFT FROM THE NORTHERN GREAT LAKES TO THE EAST COAST TONIGHT. THIS
WILL ALLOW AN AREA OF LOW PRESSURE TO TRACK ACROSS SOUTHERN HUDSON
BAY THURSDAY...AND QUICKLY BE FOLLOWED BY ANOTHER AREA OF LOW
PRESSURE ON FRIDAY. A COLD FRONT TRAILING THE SECOND LOW IS EXPECTED
TO DROP THROUGH THE CENTRAL GREAT LAKES ON FRIDAY AND FRIDAY NIGHT.

LCZ460-160815-
LAKE ST CLAIR-
345 PM EDT WED APR 15 2015

.TONIGHT...NORTHEAST WINDS 5 TO 10 KNOTS...BECOMING EAST 10 TO
15 KNOTS BY MIDNIGHT. PARTLY CLOUDY. WAVES 2 FEET OR LESS.
.THURSDAY...SOUTHEAST WINDS 10 TO 15 KNOTS...DIMINISHING TO 5 TO
10 KNOTS LATE. MOSTLY CLOUDY. A CHANCE OF LIGHT SHOWERS EARLY...THEN
LIGHT SHOWERS LIKELY BY LATE MORNING. WAVES 2 FEET OR LESS.
.THURSDAY NIGHT...SOUTH WINDS 5 TO 10 KNOTS THROUGH MIDNIGHT...
BECOMING LIGHT AND VARIABLE OVERNIGHT. CLOUDY THROUGH MIDNIGHT...
BECOMING PARTLY CLOUDY OVERNIGHT. A CHANCE OF LIGHT SHOWERS EARLY IN
THE EVENING. WAVES 2 FEET OR LESS.
.FRIDAY...LIGHT AND VARIABLE WINDS. MOSTLY SUNNY. WAVES 2 FEET OR
LESS.
.FRIDAY NIGHT...SOUTHWEST WINDS 5 TO 10 KNOTS...VEERING TO THE WEST
AFTER MIDNIGHT. MOSTLY CLEAR. WAVES 2 FEET OR LESS.
.SATURDAY...NORTHEAST WINDS 5 TO 10 KNOTS. MOSTLY CLEAR. WAVES
2 FEET OR LESS.
.SUNDAY...SOUTHEAST WINDS 15 TO 20 KNOTS. PARTLY CLOUDY. LIGHT
SHOWERS LIKELY. WAVES 2 FEET OR LESS.
.MONDAY...WEST WINDS 10 TO 15 KNOTS. MOSTLY CLOUDY WITH LIGHT
SHOWERS LIKELY. WAVES 2 FEET OR LESS.

$$

HLO

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



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