Great Lakes Forecast
Issued by NWS

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FZUS63 KDTX 280739
GLFSC

LAKE ST CLAIR FORECAST
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
339 AM 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 30.10 INCHES...WILL BUILD INTO
THE SOUTHERN AND EASTERN GREAT LAKES TODAY AS LOW PRESSURE OVER
ONTARIO LIFTS NORTH INTO ST JAMES BAY. A FRONTAL BOUNDARY WILL SET
UP OVER THE NORTHERN OHIO VALLEY BY LATE SATURDAY...BRINGING A WET
AND UNSETTLED PATTERN THROUGH MONDAY AS IT SLOWLY LIFTS THROUGH THE
CENTRAL GREAT LAKES.

LCZ460-282015-
LAKE ST CLAIR-
339 AM EDT FRI APR 28 2017

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

$$

SC

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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