Great Lakes Forecast
Issued by NWS

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403
FZUS63 KDTX 300159 RRA
GLFSC

LAKE ST CLAIR FORECAST
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
948 PM EDT FRI APR 29 2016

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 OF 30.20 INCHES WILL SETTLE FROM NORTHERN
ONTARIO INTO THE NORTHERN GREAT LAKES TONIGHT THROUGH SATURDAY. THIS
WILL PROVIDE FAVORABLE MARINE CONDITIONS UNTIL LATER SATURDAY AND
SATURDAY NIGHT WHEN THE NEXT LOW PRESSURE SYSTEM WILL BE DUE TO
ARRIVE. THIS SYSTEM WILL MOVE THROUGH THE OHIO VALLEY AT 29.80
INCHES AND BRING ANOTHER ROUND OF RAIN SHOWERS WITH MODERATE
NORTHERLY WIND BY SUNDAY. HIGH PRESSURE RETURNS MONDAY INTO TUESDAY.

LCZ460-300800-
LAKE ST CLAIR-
948 PM EDT FRI APR 29 2016

.REST OF TONIGHT...LIGHT AND VARIABLE WINDS. PARTLY CLOUDY LATE IN
THE EVENING...THEN CLEARING. WAVES NEARLY CALM.
.SATURDAY...EAST WINDS 5 TO 10 KNOTS. PARTLY SUNNY THROUGH MID
AFTERNOON...BECOMING CLOUDY. WAVES 2 FEET OR LESS.
.SATURDAY NIGHT...EAST WINDS 10 TO 15 KNOTS...BECOMING NORTHEAST
15 TO 20 KNOTS AFTER MIDNIGHT...THEN DIMINISHING TO 10 TO 15 KNOTS
LATE. RAIN. WAVES 2 FEET OR LESS.
.SUNDAY...NORTH WINDS 10 TO 15 KNOTS. CLOUDY WITH A CHANCE OF LIGHT
SHOWERS. WAVES 2 FEET OR LESS.
.SUNDAY NIGHT...NORTH WINDS 10 TO 15 KNOTS...DIMINISHING TO 5 TO
10 KNOTS BY MIDNIGHT...THEN INCREASING TO 10 TO 15 KNOTS LATE.
MOSTLY CLOUDY THROUGH MIDNIGHT...BECOMING PARTLY CLOUDY OVERNIGHT. A
CHANCE OF LIGHT SHOWERS. WAVES 2 FEET OR LESS.
.MONDAY...NORTH WINDS 10 TO 15 KNOTS...DIMINISHING TO 5 TO 10 KNOTS
BY MID AFTERNOON. MOSTLY CLEAR. WAVES 2 FEET OR LESS.
.TUESDAY...SOUTHWEST WINDS 10 TO 15 KNOTS. MOSTLY CLEAR. A CHANCE OF
LIGHT SHOWERS. WAVES 2 FEET OR LESS.
.WEDNESDAY...NORTH WINDS 10 TO 15 KNOTS. PARTLY CLOUDY. A CHANCE OF
LIGHT SHOWERS. WAVES 2 FEET OR LESS.

$$

CB

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



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