Great Lakes Forecast
Issued by NWS

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000
FZUS63 KDTX 231500
GLFSC

LAKE ST CLAIR FORECAST
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
1000 AM EST MON FEB 23 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...HIGH PRESSURE CENTERED OVER IOWA...MEASURING 30.90
INCHES...WILL GRADUALLY WEAKEN TO 30.60 INCHES AS IT BECOMES
CENTERED OVER THE OHIO VALLEY BY THIS EVENING. LOW PRESSURE WILL
THEN TRACK THROUGH FAR NORTHERN ONTARIO TONIGHT AND TUESDAY. THIS
WILL PUSH ANOTHER ARCTIC COLD FRONT DOWN ACROSS THE CENTRAL GREAT
LAKES TUESDAY NIGHT.

LCZ460-232115-
LAKE ST CLAIR-
1000 AM EST MON FEB 23 2015

.REST OF TODAY...WEST WINDS 5 TO 10 KNOTS. MOSTLY SUNNY.
.TONIGHT...SOUTHWEST WINDS 5 TO 10 KNOTS...INCREASING TO 15 TO
20 KNOTS OVERNIGHT. PARTLY CLOUDY.
.TUESDAY...SOUTHWEST WINDS 15 TO 20 KNOTS...INCREASING TO 20 TO 25
KNOTS WITH GUSTS TO 35 KNOT GALES BY LATE MORNING...THEN DIMINISHING
TO 15 TO 20 KNOTS WITH GUSTS TO 30 KNOTS LATE. MOSTLY CLOUDY
EARLY...THEN A CHANCE OF LIGHT SNOW SHOWERS LATE IN THE MORNING.
CLOUDY WITH LIGHT SNOW SHOWERS LIKELY BY AFTERNOON. A GALE WARNING
MAY BE NEEDED.
.TUESDAY NIGHT...SOUTHWEST WINDS 10 TO 15 KNOTS...BECOMING WEST
15 TO 20 KNOTS AFTER MIDNIGHT...THEN VEERING TO THE NORTHWEST LATE.
MOSTLY CLOUDY WITH LIGHT SNOW SHOWERS LIKELY IN THE EVENING...THEN
PARTLY CLOUDY AFTER MIDNIGHT.
.WEDNESDAY...NORTHWEST WINDS 10 TO 15 KNOTS...BECOMING NORTH 5 TO
10 KNOTS BY EVENING. MOSTLY CLEAR.
.THURSDAY...NORTH WINDS 5 TO 10 KNOTS. PARTLY CLOUDY.
.FRIDAY...SOUTHWEST WINDS 5 TO 10 KNOTS. MOSTLY CLEAR.

WAVES OMITTED DUE TO ICE COVERAGE.

$$

CB

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



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