Great Lakes Forecast
Issued by NWS

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FZUS63 KDTX 280125
GLFSC

LAKE ST CLAIR FORECAST
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
925 PM EDT SAT JUN 27 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...LOW PRESSURE...29.50 INCHES...OVER NORTHERN OHIO THIS
EVENING WILL EXIT EAST-NORTHEAST TONIGHT. A WEAK SURFACE RIDGE
WILL BUILD INTO THE CENTRAL GREAT LAKES FROM THE WEST LATER
SUNDAY...AND LINGER THROUGH MONDAY MORNING. THE NEXT LOW PRESSURE
SYSTEM...29.70 INCHES...LOOKS TO BE MOVING THROUGH SOUTHERN LOWER
MICHIGAN TUESDAY EVENING AND NIGHT.

LCZ460-280815-
LAKE ST CLAIR-
925 PM EDT SAT JUN 27 2015

...GALE WARNING IN EFFECT UNTIL 4 AM EDT SUNDAY...

.REST OF TONIGHT...NORTH WINDS TO 30 KNOTS WITH GUSTS TO 35 KNOT
GALES...DIMINISHING TO 20 TO 25 KNOTS WITH GUSTS TO 30 KNOTS AFTER
MIDNIGHT. RAIN THIS EVENING...THEN LIGHT RAIN LIKELY AFTER MIDNIGHT.
WAVES 2 TO 4 FEET.
.SUNDAY...NORTH WINDS 20 TO 25 KNOTS...DIMINISHING TO 10 TO
15 KNOTS. MOSTLY CLOUDY. A CHANCE OF LIGHT SHOWERS THROUGH EARLY
AFTERNOON. WAVES 1 TO 3 FEET.
.SUNDAY NIGHT...LIGHT AND VARIABLE WINDS...BECOMING SOUTHEAST 5 TO
10 KNOTS BY MIDNIGHT...THEN BECOMING LIGHT AND VARIABLE LATE. MOSTLY
CLEAR. WAVES 2 FEET OR LESS.
.MONDAY...SOUTH WINDS 5 TO 10 KNOTS...BECOMING SOUTHEAST 15 TO
20 KNOTS. PARTLY SUNNY THROUGH MID AFTERNOON...BECOMING CLOUDY. A
CHANCE OF SHOWERS THROUGH EARLY AFTERNOON...THEN A CHANCE OF SHOWERS
AND THUNDERSTORMS BY MID AFTERNOON. WAVES 2 FEET OR LESS.
.MONDAY NIGHT...SOUTHEAST WINDS 20 TO 25 KNOTS WITH GUSTS TO 30
KNOTS...BECOMING SOUTHWEST 15 TO 20 KNOTS AFTER MIDNIGHT. CLOUDY WITH
SHOWERS LIKELY AND A CHANCE OF THUNDERSTORMS. WAVES 1 TO 3 FEET. A
SMALL CRAFT ADVISORY MAY BE NEEDED.
.TUESDAY...WEST WINDS 15 TO 20 KNOTS...BECOMING NORTHWEST 5 TO
10 KNOTS. MOSTLY CLOUDY THROUGH MID AFTERNOON...BECOMING PARTLY
CLOUDY. A CHANCE OF SHOWERS AND THUNDERSTORMS. WAVES 2 FEET OR LESS.
.WEDNESDAY...NORTHEAST WINDS 5 TO 10 KNOTS. PARTLY CLOUDY. A CHANCE
OF SHOWERS AND THUNDERSTORMS. WAVES 2 FEET OR LESS.
.THURSDAY...EAST WINDS 5 TO 10 KNOTS. MOSTLY CLEAR. WAVES 2 FEET OR
LESS.

$$

SC

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



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