Great Lakes Forecast
Issued by NWS

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FZUS63 KDTX 170745
GLFSC

LAKE ST CLAIR FORECAST
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
345 AM EDT FRI APR 17 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 30.20 INCHES...WILL LARGELY
DOMINATE THE WEATHER INTO SUNDAY MORNING. THE EXCEPTION WILL BE A
COMPACT CLIPPER DIVING THROUGH THE NORTHERN GREAT LAKES PUSHIGN A
WEAK COLD FRONT THROUGH THE REGION SATURDAY MORNING. THEN A LARGE
AREA OF LOW PRESSURE...AVERAGING 29.40 INCHES...WILL TRACK INTO
THE REGION AND WILL DEEPEN AS IT STALLS OVERHEAD THROUGH MID WEEK.

LCZ460-172000-
LAKE ST CLAIR-
345 AM EDT FRI APR 17 2015

.TODAY...NORTHWEST WINDS 5 TO 10 KNOTS...BACKING TO THE SOUTH BY MID
AFTERNOON. MOSTLY SUNNY. WAVES 2 FEET OR LESS.
.TONIGHT...SOUTHWEST WINDS 5 TO 10 KNOTS THROUGH MIDNIGHT...BECOMING
LIGHT AND VARIABLE OVERNIGHT. MOSTLY CLEAR. WAVES 2 FEET OR LESS.
.SATURDAY...NORTH WINDS 5 TO 10 KNOTS...BECOMING NORTHEAST 10 TO
15 KNOTS BY LATE MORNING. MOSTLY SUNNY. WAVES 2 FEET OR LESS.
.SATURDAY NIGHT...NORTHEAST WINDS 10 TO 15 KNOTS...DIMINISHING TO
5 TO 10 KNOTS BY MIDNIGHT...THEN BECOMING EAST 10 TO 15 KNOTS AFTER
MIDNIGHT. PARTLY CLOUDY. WAVES 2 FEET OR LESS.
.SUNDAY...SOUTHEAST WINDS 15 TO 20 KNOTS. PARTLY SUNNY EARLY...
BECOMING MOSTLY CLOUDY. A CHANCE OF LIGHT SHOWERS THROUGH EARLY
AFTERNOON...THEN SHOWERS LIKELY BY MID AFTERNOON. WAVES 1 TO 3 FEET.
.MONDAY...WEST WINDS 10 TO 15 KNOTS. MOSTLY CLOUDY. LIGHT SHOWERS
LIKELY AND A CHANCE OF THUNDERSTORMS. WAVES 2 FEET OR LESS.
.TUESDAY...WEST WINDS 15 TO 20 KNOTS. PARTLY CLOUDY. A CHANCE OF
LIGHT SHOWERS. WAVES 2 FEET OR LESS.

$$

DRK

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


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