Great Lakes Forecast
Issued by NWS

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000
FZUS63 KDTX 061948
GLFSC

LAKE ST CLAIR FORECAST
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
348 PM EDT WED MAY 6 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...30.20 INCHES...WILL WEAKEN AS IT TRACKS
TOWARD UPSTATE NEW YORK TONIGHT. AN AREA OF LOW PRESSURE WILL
DEVELOP OVER THE NORTHERN PLAINS TODAY...AVERAGING 29.60 INCHES..
AND TRACK INTO NORTHERN ONTARIO BY THURSDAY NIGHT. AS THE SYSTEM
LIFTS NORTHEAST IT WILL PULL A COLD FRONT INTO THE REGION FRIDAY
NIGHT...EXITING TO THE EAST ON SATURDAY.

LCZ460-070815-
LAKE ST CLAIR-
348 PM EDT WED MAY 6 2015

.TONIGHT...LIGHT AND VARIABLE WINDS. PARTLY CLOUDY. WAVES 2 FEET OR
LESS.
.THURSDAY...LIGHT AND VARIABLE WINDS...BECOMING SOUTHEAST 5 TO
10 KNOTS BY LATE MORNING. MOSTLY SUNNY. WAVES 2 FEET OR LESS.
.THURSDAY NIGHT...SOUTHEAST WINDS 5 TO 10 KNOTS THROUGH MIDNIGHT...
BECOMING LIGHT AND VARIABLE...THEN BECOMING SOUTH 5 TO 10 KNOTS
LATE. MOSTLY CLEAR. WAVES 2 FEET OR LESS.
.FRIDAY...SOUTH WINDS 5 TO 10 KNOTS...INCREASING TO 10 TO 15 KNOTS
BY LATE MORNING. MOSTLY SUNNY. A CHANCE OF SHOWERS AND THUNDERSTORMS
LATE. WAVES 2 FEET OR LESS.
.FRIDAY NIGHT...SOUTH WINDS 5 TO 10 KNOTS. PARTLY CLOUDY WITH A
CHANCE OF SHOWERS AND THUNDERSTORMS. WAVES 2 FEET OR LESS.
.SATURDAY...SOUTHWEST WINDS 10 TO 15 KNOTS...BECOMING WEST 5 TO
10 KNOTS THROUGH MIDNIGHT. PARTLY SUNNY EARLY...BECOMING MOSTLY
CLOUDY. SHOWERS AND THUNDERSTORMS LIKELY...THEN A CHANCE OF SHOWERS
AND THUNDERSTORMS THROUGH MIDNIGHT. WAVES 2 FEET OR LESS.
.SUNDAY...NORTHEAST WINDS 5 TO 10 KNOTS. MOSTLY CLOUDY WITH A CHANCE
OF SHOWERS AND THUNDERSTORMS. WAVES 2 FEET OR LESS.
.MONDAY...SOUTH WINDS 10 TO 15 KNOTS. MOSTLY CLOUDY WITH SHOWERS AND
THUNDERSTORMS LIKELY. WAVES 2 FEET OR LESS.

$$

DRK

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


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