Great Lakes Forecast
Issued by NWS

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FZUS63 KDTX 180734
GLFSC

LAKE ST CLAIR FORECAST
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
332 AM EDT FRI JUL 18 2014

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...30.20 INCHES...WILL MOVE FROM THE
EASTERN GREAT LAKES THIS MORNING TO NEW ENGLAND BY TONIGHT. LOW
PRESSURE OF 30.00 INCHES IS FORECAST TO DEVELOP OVER THE NORTHERN
OHIO VALLEY AND SOUTHEAST MICHIGAN ON SATURDAY. THIS SYSTEM WILL
LIFT TO THE NORTHEAST SATURDAY NIGHT. WEAK HIGH PRESSURE WILL THEN
RESIDE OVER THE GREAT LAKES THROUGH TUESDAY AS A SLOW MOVING FRONTAL
BOUNDARY TRAVERSES THE NORTHERN PLAINS.

LCZ460-182000-
LAKE ST CLAIR-
332 AM EDT FRI JUL 18 2014

.TODAY...LIGHT AND VARIABLE WINDS...BECOMING SOUTHEAST 5 TO 10 KNOTS
LATE. MOSTLY SUNNY. WAVES NEARLY CALM.
.TONIGHT...EAST WINDS 5 TO 10 KNOTS. A CHANCE OF LIGHT SHOWERS AFTER
MIDNIGHT. PARTLY CLOUDY THROUGH MIDNIGHT...BECOMING MOSTLY CLOUDY
OVERNIGHT. WAVES 2 FEET OR LESS.
.SATURDAY...SOUTHEAST WINDS 5 TO 10 KNOTS. MOSTLY CLOUDY WITH A
CHANCE OF LIGHT SHOWERS. WAVES 2 FEET OR LESS.
.SATURDAY NIGHT...SOUTHEAST WINDS 5 TO 10 KNOTS EARLY IN THE
EVENING...BECOMING LIGHT AND VARIABLE OVERNIGHT. PARTLY CLOUDY.
WAVES 2 FEET OR LESS.
.SUNDAY...LIGHT AND VARIABLE WINDS...BECOMING SOUTH 5 TO 10 KNOTS BY
MID AFTERNOON. MOSTLY SUNNY...BECOMING SUNNY BY EARLY AFTERNOON...
BECOMING MOSTLY CLEAR. WAVES 2 FEET OR LESS.
.MONDAY...SOUTHEAST WINDS 5 TO 10 KNOTS. MOSTLY CLEAR. WAVES 2 FEET
OR LESS.
.TUESDAY...SOUTH WINDS 5 TO 10 KNOTS. MOSTLY CLEAR. WAVES 2 FEET OR
LESS.

$$

CB/SC

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






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