Great Lakes Forecast
Issued by NWS

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FZUS63 KDTX 122040
GLFSC

LAKE ST CLAIR FORECAST
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
340 PM EST THU JAN 12 2017

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...SURFACE RIDGING WILL PUSH INTO THE CENTRAL GREAT LAKES
THIS EVENING. THE PRESSURE GRADIENT BETWEEN THE EXITING LOW
AT...29.97 INCHES...AND THE INCOMING ARCTIC HIGH AT...30.82 INCHES
WILL GENERATE INCREASING NORTHWEST TO WEST WIND OVER THE NORTHERN
GREAT LAKES FOR LATE TONIGHT THROUGH EARLY FRIDAY MORNING. THE HIGH
WILL CONTINUE TO BUILD AND PUSH TO THE EAST...BECOMING CENTERED OVER
THE GREAT LAKES REGION THIS WEEKEND.

LCZ460-130915-
LAKE ST CLAIR-
340 PM EST THU JAN 12 2017

.TONIGHT...NORTHWEST WINDS 5 TO 10 KNOTS. MOSTLY CLOUDY IN THE
EVENING BECOMING PARTLY CLOUDY OVERNIGHT.
.FRIDAY...NORTH WINDS 5 TO 10 KNOTS. PARTLY SUNNY.
.FRIDAY NIGHT...LIGHT AND VARIABLE WINDS. MOSTLY CLOUDY.
.SATURDAY...LIGHT AND VARIABLE WINDS. CLOUDY.
.SATURDAY NIGHT...LIGHT AND VARIABLE WINDS. PARTLY CLOUDY.
.SUNDAY...LIGHT AND VARIABLE WINDS. MOSTLY SUNNY BECOMING PARTLY
CLOUDY.
.MONDAY...SOUTHEAST WINDS 5 TO 10 KNOTS. CLOUDY WITH SNOW AND RAIN
LIKELY.
.TUESDAY...SOUTHWEST WINDS 10 TO 15 KNOTS. CLOUDY WITH RAIN AND SNOW
LIKELY.

WAVES OMITTED DUE TO ICE COVERAGE.

$$

DG

EXPERIMENTAL MODERNIZED OPEN LAKE FORECAST IS AVAILABLE ONLINE AT
WEATHER.GOV/DTX/GLFTABLESC

GRAPHICAL MARINE FORECASTS ARE AVAILABLE ONLINE AT
WEATHER.GOV/GREATLAKES



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