Great Lakes Forecast
Issued by NWS

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000
FZUS63 KDTX 212057
GLFSC

LAKE ST CLAIR FORECAST
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
357 PM EST SAT FEB 21 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...WEAK LOW PRESSURE...AVERAGING 29.90 INCHES...WILL PULL A
COLD FRONT THROUGH THE REGION SUNDAY THAT COULD PRODUCE GALE FORCE
WIND GUSTS OVER THE NORTH HALF OF LAKE HURON. COLD HIGH PRESSURE
WILL THEN MOVE QUICKLY THROUGH THE GREAT LAKES MONDAY IN ADVANCE OF
A STRONGER LOW PRESSURE SYSTEM EXPECTED TO ARRIVE FROM NORTHERN
ONTARIO TUESDAY.

LCZ460-220915-
LAKE ST CLAIR-
357 PM EST SAT FEB 21 2015

.TONIGHT...LIGHT AND VARIABLE WINDS. MOSTLY CLOUDY. A CHANCE OF
LIGHT SNOW AFTER MIDNIGHT.
.SUNDAY...SOUTHWEST WINDS 5 TO 10 KNOTS...VEERING TO THE NORTH LATE
IN THE MORNING...THEN INCREASING TO 10 TO 15 KNOTS BY AFTERNOON.
PARTLY SUNNY. A CHANCE OF LIGHT SNOW SHOWERS IN THE MORNING.
.SUNDAY NIGHT...NORTHWEST WINDS 10 TO 15 KNOTS...DIMINISHING TO 5 TO
10 KNOTS LATE. MOSTLY CLEAR.
.MONDAY...NORTHWEST WINDS 5 TO 10 KNOTS...BECOMING SOUTHWEST 10 TO
15 KNOTS BY AFTERNOON. MOSTLY SUNNY.
.MONDAY NIGHT...SOUTHWEST WINDS 10 TO 15 KNOTS...INCREASING TO 15 TO
20 KNOTS BY LATE EVENING. PARTLY CLOUDY.
.TUESDAY...SOUTHWEST WINDS 20 TO 25 KNOTS WITH GUSTS TO 30 KNOTS...
BECOMING WEST 10 TO 15 KNOTS. MOSTLY CLOUDY WITH A CHANCE OF LIGHT
SNOW. A SMALL CRAFT ADVISORY MAY BE NEEDED.
.WEDNESDAY...NORTHWEST WINDS 10 TO 15 KNOTS. PARTLY CLOUDY. A CHANCE
OF LIGHT SNOW.
.THURSDAY...WEST WINDS 5 TO 10 KNOTS. MOSTLY CLEAR.

WAVES OMITTED DUE TO ICE COVERAGE.

$$

JVC

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


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