Great Lakes Forecast
Issued by NWS

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000
FZUS63 KDTX 291348
GLFSC

LAKE ST CLAIR FORECAST
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
948 AM EDT FRI MAY 29 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...29.80 INCHES...WILL SLOWLY MOVE EAST
ACROSS NORTHERN ONTARIO TODAY. THE LOW WILL THEN DEEPEN TO 29.50
INCHES TONIGHT AS IT LIFTS INTO NORTHERN QUEBEC. THIS SYSTEM WILL
DRIVE A COLD FRONT ACROSS THE GREAT LAKES SATURDAY AND SATURDAY
NIGHT. HIGH PRESSURE WILL EXPAND ACROSS THE NORTHERN GREAT LAKES
SUNDAY INTO MONDAY IN THE WAKE OF THIS SYSTEM.

LCZ460-292015-
LAKE ST CLAIR-
948 AM EDT FRI MAY 29 2015

.REST OF TODAY...SOUTH WINDS 5 TO 10 KNOTS...INCREASING TO 10 TO
15 KNOTS BY LATE MORNING. PARTLY SUNNY. A CHANCE OF LIGHT SHOWERS BY
LATE MORNING. WAVES 2 FEET OR LESS.
.TONIGHT...SOUTH WINDS 5 TO 10 KNOTS...INCREASING TO 10 TO 15 KNOTS
AFTER MIDNIGHT. MOSTLY CLOUDY. A CHANCE OF LIGHT SHOWERS AFTER
MIDNIGHT. SHOWERS AND THUNDERSTORMS LIKELY LATE. WAVES 2 FEET OR
LESS.
.SATURDAY...SOUTHWEST WINDS 10 TO 15 KNOTS...DIMINISHING TO 5 TO
10 KNOTS BY LATE MORNING...THEN BECOMING WEST 10 TO 15 KNOTS LATE.
SHOWERS AND THUNDERSTORMS. WAVES 2 FEET OR LESS.
.SATURDAY NIGHT...NORTH WINDS 15 TO 20 KNOTS. MOSTLY CLOUDY THROUGH
MIDNIGHT...BECOMING PARTLY CLOUDY OVERNIGHT. THUNDERSTORMS LIKELY
EARLY IN THE EVENING. LIGHT SHOWERS LIKELY THROUGH MIDNIGHT. A
CHANCE OF THUNDERSTORMS BY MIDNIGHT. WAVES 1 TO 3 FEET.
.SUNDAY...NORTHEAST WINDS 15 TO 20 KNOTS. PARTLY SUNNY...BECOMING
MOSTLY SUNNY BY LATE MORNING...BECOMING CLEAR. WAVES 1 TO 3 FEET.
.MONDAY...NORTHEAST WINDS 10 TO 15 KNOTS. MOSTLY CLEAR. WAVES 2 FEET
OR LESS.
.TUESDAY...EAST WINDS 5 TO 10 KNOTS. MOSTLY CLEAR. WAVES 2 FEET OR
LESS.

$$

HLO

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


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