Great Lakes Forecast
Issued by NWS

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FZUS63 KDTX 230158
GLFSC

LAKE ST CLAIR FORECAST
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
958 PM EDT FRI APR 22 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...AVERAGING 30.20 INCHES...WILL BUILD INTO
THE CENTRAL GREAT LAKES THIS AFTERNOON/EVENING AND PERSIST THROUGH
SATURDAY. SATURDAY NIGHT THE HIGH GETS SHOVED EAST...AS AN EMERGING
LOW OVER THE NORTHERN PLAINS PUSHES INTO THE GREAT LAKES REGION.
THIS LOW...AVERAGING 29.40 INCHES...WILL WEAKEN AS IT MOVES EAST.

LCZ460-230815-
LAKE ST CLAIR-
958 PM EDT FRI APR 22 2016

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

$$

MR

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



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