Great Lakes Forecast
Issued by NWS

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FZUS63 KDTX 020800
GLFSC

LAKE ST CLAIR FORECAST
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
400 AM EDT THU APR 2 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...SURFACE LOW PRESSURE WILL TRACK SLOWLY ACROSS ONTARIO
TO JAMES BAY TODAY. A SECONDARY LOW...29.70 INCHES...WILL DEVELOP
RAPIDLY OVER THE OHIO RIVER VALLEY FRIDAY NIGHT...DEEPENING TO 29.00
INCHES OVER THE CANADIAN MARITIMES BY SATURDAY AFTERNOON.

LCZ460-022015-
LAKE ST CLAIR-
400 AM EDT THU APR 2 2015

.TODAY...SOUTH WINDS 10 TO 15 KNOTS...INCREASING TO 15 TO 20 KNOTS
BY LATE MORNING. PARTLY SUNNY THROUGH MID AFTERNOON. A CHANCE OF
LIGHT SHOWERS THROUGH EARLY AFTERNOON...THEN LIGHT SHOWERS AND A
CHANCE OF THUNDERSTORMS BY MID AFTERNOON. WAVES 2 FEET OR LESS.
.TONIGHT...SOUTHWEST WINDS 15 TO 20 KNOTS...DIMINISHING TO 5 TO
10 KNOTS OVERNIGHT. MOSTLY CLOUDY EARLY IN THE EVENING...BECOMING
PARTLY CLOUDY OVERNIGHT. A CHANCE OF LIGHT SHOWERS EARLY IN THE
EVENING. WAVES 2 FEET OR LESS.
.FRIDAY...LIGHT AND VARIABLE WINDS...BECOMING NORTHEAST 10 TO
15 KNOTS BY LATE MORNING...THEN INCREASING TO 15 TO 20 KNOTS BY MID
AFTERNOON. PARTLY SUNNY THROUGH MID AFTERNOON...THEN CLOUDY WITH
LIGHT RAIN AND SNOW LATE. WAVES 2 FEET OR LESS.
.FRIDAY NIGHT...NORTH WINDS 15 TO 20 KNOTS...BECOMING NORTHWEST
10 TO 15 KNOTS BY MIDNIGHT. MOSTLY CLOUDY WITH LIGHT RAIN AND SNOW
EARLY IN THE EVENING...THEN PARTLY CLOUDY WITH LIGHT SNOW BY
MIDNIGHT. MOSTLY CLEAR AFTER MIDNIGHT. WAVES 2 FEET OR LESS.
.SATURDAY...NORTHWEST WINDS 10 TO 15 KNOTS...BACKING TO THE
SOUTHWEST BY MID AFTERNOON. MOSTLY SUNNY...BECOMING PARTLY SUNNY BY
MID AFTERNOON...BECOMING MOSTLY CLEAR. WAVES 2 FEET OR LESS.
.SUNDAY...EAST WINDS 10 TO 15 KNOTS. PARTLY CLOUDY. A CHANCE OF
LIGHT RAIN AND SNOW SHOWERS. WAVES 2 FEET OR LESS.
.MONDAY...SOUTHEAST WINDS 5 TO 10 KNOTS. MOSTLY CLOUDY WITH LIGHT
SHOWERS LIKELY AND A CHANCE OF LIGHT SNOW SHOWERS. WAVES 2 FEET OR
LESS.

WAVE HEIGHTS ARE FOR ICE FREE AREAS.

$$

CB

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



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