Great Lakes Forecast
Issued by NWS

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000
FZUS63 KDTX 240249
GLFSC

LAKE ST CLAIR FORECAST
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
949 PM 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 WILL WEAKEN TO 30.60 INCHES AS IT BECOMES
CENTERED OVER THE OHIO VALLEY TONIGHT. LOW PRESSURE WILL THEN TRACK
THROUGH FAR NORTHERN ONTARIO LATE TONIGHT AND TUESDAY. THIS WILL
PUSH ANOTHER ARCTIC COLD FRONT DOWN ACROSS THE CENTRAL GREAT LAKES
TUESDAY NIGHT.

LCZ460-240915-
LAKE ST CLAIR-
949 PM EST MON FEB 23 2015

...GALE WARNING IN EFFECT FROM 4 AM EST TUESDAY THROUGH TUESDAY
EVENING...

.REST OF TONIGHT...SOUTHWEST WINDS 10 TO 15 KNOTS...DIMINISHING TO
5 TO 10 KNOTS THIS EVENING...THEN INCREASING TO 15 TO 20 KNOTS
LATE. MOSTLY CLEAR.
.TUESDAY...SOUTHWEST WINDS 20 TO 25 KNOTS WITH GUSTS TO 30 KNOTS...
INCREASING TO 30 KNOTS WITH GUSTS TO 35 KNOT GALES BY LATE MORNING...
THEN DIMINISHING TO 15 TO 20 KNOTS LATE. MOSTLY CLOUDY EARLY...THEN
A CHANCE OF LIGHT SNOW SHOWERS LATE IN THE MORNING. CLOUDY WITH
LIGHT SNOW SHOWERS LIKELY BY AFTERNOON.
.TUESDAY NIGHT...SOUTHWEST WINDS 10 TO 15 KNOTS...BECOMING NORTHWEST
5 TO 10 KNOTS AFTER MIDNIGHT. MOSTLY CLOUDY WITH A CHANCE OF LIGHT
SNOW SHOWERS IN THE EVENING...THEN PARTLY CLOUDY AFTER MIDNIGHT.
.WEDNESDAY...NORTHWEST WINDS 10 TO 15 KNOTS...DIMINISHING TO 5 TO
10 KNOTS BY AFTERNOON. MOSTLY SUNNY.
.WEDNESDAY NIGHT...NORTHEAST WINDS 5 TO 10 KNOTS. PARTLY CLOUDY.
.THURSDAY...NORTH WINDS 5 TO 10 KNOTS. PARTLY SUNNY...BECOMING
MOSTLY CLEAR.
.FRIDAY...SOUTHWEST WINDS 5 TO 10 KNOTS. MOSTLY CLEAR.
.SATURDAY...SOUTH WINDS 5 TO 10 KNOTS. PARTLY CLOUDY. A CHANCE OF
LIGHT SNOW.

WAVES OMITTED DUE TO ICE COVERAGE.

$$

DG

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


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