Great Lakes Forecast
Issued by NWS

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000
FZUS63 KDTX 210738
GLFSC

LAKE ST CLAIR FORECAST
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
336 AM EDT SUN SEP 21 2014

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...A COLD FRONT AVERAGING 29.60 INCHES WILL SLOWLY WORK
THROUGH THE CENTRAL GREAT LAKES TODAY...TRIGGERING SHOWERS AND
STRONG THUNDERSTORMS THROUGH THIS EVENING BEFORE THE WIND TURNS FROM
THE NORTH AND BRING COOLER AND LESS HUMID AIR BACK INTO THE REGION.
THE NORTHERLY FLOW WILL BUILD WAVES OVER THE SOUTH HALF OF LAKE
HURON UNTIL HIGH PRESSURE SETTLES IN FOR THE MIDDLE OF THE WEEK.

LCZ460-212000-
LAKE ST CLAIR-
336 AM EDT SUN SEP 21 2014

.TODAY...LIGHT AND VARIABLE WINDS...BECOMING WEST 5 TO 10 KNOTS BY
LATE MORNING...THEN VEERING TO THE NORTH BY EARLY AFTERNOON...
INCREASING TO 10 TO 15 KNOTS LATE. SHOWERS AND THUNDERSTORMS LIKELY
EARLY...THEN LIGHT SHOWERS AND A CHANCE OF THUNDERSTORMS BY LATE
MORNING. WAVES 2 FEET OR LESS.
.TONIGHT...NORTH WINDS 15 TO 20 KNOTS...DIMINISHING TO 10 TO
15 KNOTS BY MIDNIGHT. LIGHT SHOWERS LIKELY EARLY IN THE EVENING.
MOSTLY CLOUDY...BECOMING PARTLY CLOUDY AFTER MIDNIGHT...BECOMING
MOSTLY CLOUDY. WAVES 2 FEET OR LESS.
.MONDAY...NORTHWEST WINDS 10 TO 15 KNOTS...DIMINISHING TO 5 TO
10 KNOTS BY MID AFTERNOON. PARTLY SUNNY. WAVES 2 FEET OR LESS.
.MONDAY NIGHT...WEST WINDS 5 TO 10 KNOTS. MOSTLY CLEAR. WAVES 2 FEET
OR LESS.
.TUESDAY...WEST WINDS 5 TO 10 KNOTS...BACKING TO THE SOUTHEAST
THROUGH MIDNIGHT. MOSTLY SUNNY...BECOMING SUNNY BY LATE MORNING...
BECOMING MOSTLY SUNNY...BECOMING SUNNY LATE...BECOMING MOSTLY CLEAR.
WAVES 2 FEET OR LESS.
.WEDNESDAY...SOUTHEAST WINDS 5 TO 10 KNOTS. MOSTLY CLEAR. WAVES
2 FEET OR LESS.
.THURSDAY...SOUTHEAST WINDS 5 TO 10 KNOTS. MOSTLY CLEAR. WAVES
2 FEET OR LESS.

$$

KURIMSKI

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






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