Great Lakes Forecast
Issued by NWS

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000
FZUS63 KDTX 220236
GLFSC

LAKE ST CLAIR FORECAST
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
936 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. 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-
936 PM EST SAT FEB 21 2015

.REST OF TONIGHT...LIGHT AND VARIABLE WINDS. PARTLY CLOUDY...
BECOMING MOSTLY CLOUDY OVERNIGHT. A CHANCE OF LIGHT SNOW AFTER
MIDNIGHT.
.SUNDAY...SOUTHWEST WINDS 5 TO 10 KNOTS...VEERING TO THE NORTHWEST
BY LATE MORNING...THEN INCREASING TO 10 TO 15 KNOTS LATE. 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.
.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.

$$

DG

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



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