Great Lakes Forecast
Issued by NWS

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234
FZUS63 KDTX 290156
GLFSC

LAKE ST CLAIR FORECAST
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
956 PM EDT FRI APR 28 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...HIGH PRESSURE...AVERAGING 30.30 INCHES...WILL BUILD
OVER THE NORTHERN GREAT LAKES TONIGHT INTO SATURDAY AS A FRONTAL
BOUNDARY SETS UP OVER THE NORTHERN OHIO VALLEY. LOW PRESSURE
DEVELOPING OVER THE SOUTHERN PLAINS ON SATURDAY WILL MOVE NORTHWARD
AND BRING A WET AND UNSETTLED PATTERN THROUGH MONDAY AS THE FRONTAL
BOUNDARY SLOWLY LIFTS NORTHWARD THROUGH THE CENTRAL GREAT LAKES.

LCZ460-290815-
LAKE ST CLAIR-
956 PM EDT FRI APR 28 2017

.REST OF TONIGHT...SOUTH WINDS 5 TO 10 KNOTS...BECOMING LIGHT AND
VARIABLE...THEN BECOMING NORTH 10 TO 15 KNOTS EARLY IN THE MORNING.
CLOUDY WITH A CHANCE OF LIGHT SHOWERS. WAVES 2 FEET OR LESS.
.SATURDAY...NORTH WINDS 10 TO 15 KNOTS BECOMING NORTHEAST 15 TO 20
KNOTS IN THE LATE MORNING AND AFTERNOON. CLOUDY. A CHANCE OF LIGHT
SHOWERS IN THE MORNING...THEN LIGHT SHOWERS LIKELY IN THE AFTERNOON.
WAVES 2 FEET OR LESS.
.SATURDAY NIGHT...NORTHEAST WINDS 15 TO 20 KNOTS. CLOUDY WITH
NUMEROUS SHOWERS. WAVES 1 TO 3 FEET.
.SUNDAY...EAST WINDS 15 TO 20 KNOTS DIMINISHING TO 10 TO 15 KNOTS IN
THE LATE MORNING AND AFTERNOON. CLOUDY WITH NUMEROUS SHOWERS AND
SCATTERED THUNDERSTORMS. WAVES 2 FEET OR LESS.
.SUNDAY NIGHT...SOUTHEAST WINDS 5 TO 10 KNOTS. CLOUDY WITH NUMEROUS
SHOWERS AND SCATTERED THUNDERSTORMS. WAVES 2 FEET OR LESS.
.MONDAY...SOUTH WINDS 10 TO 15 KNOTS BECOMING SOUTHWEST 15 TO 20
KNOTS IN THE AFTERNOON AND EVENING. MOSTLY CLOUDY BECOMING PARTLY
CLOUDY EARLY IN THE EVENING BECOMING MOSTLY CLOUDY. NUMEROUS SHOWERS
UNTIL LATE AFTERNOON. SCATTERED THUNDERSTORMS. SCATTERED LIGHT
SHOWERS EARLY IN THE EVENING. WAVES 1 TO 3 FEET.
.TUESDAY...WEST WINDS 20 TO 25 KNOTS WITH GUSTS TO 30 KNOTS. MOSTLY
CLOUDY WITH A CHANCE OF SHOWERS. WAVES 1 TO 3 FEET. A SMALL CRAFT
ADVISORY MAY BE NEEDED.
.WEDNESDAY...NORTH WINDS 10 TO 15 KNOTS. PARTLY CLOUDY. WAVES 2 FEET
OR LESS.

$$

BT

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

GRAPHICAL MARINE FORECASTS ARE AVAILABLE AT WEATHER.GOV/GREATLAKES



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