Great Lakes Forecast
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FZUS63 KDTX 192003
GLFSC

LAKE ST CLAIR FORECAST
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
403 PM EDT SUN OCT 19 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...HIGH PRESSURE OF 30.20 INCHES WILL STEADILY SHIFT
EASTWARD ACROSS THE EASTERN GREAT LAKES TONIGHT. SOUTHERLY WIND WILL
THEN INCREASE AHEAD OF THE NEXT LOW PRESSURE SYSTEM AS IT MOVES
TOWARD THE STRAITS FROM NORTHWEST ONTARIO. THIS LOW AND ASSOCIATED
COLD FRONT WILL TRACK THROUGH LAKE HURON AND LOWER MICHIGAN DURING
MONDAY AND MONDAY NIGHT AND BE FOLLOWED BY STRONG NORTHWEST WIND
SHIFTING NORTHEAST INTO TUESDAY. HIGH PRESSURE WILL THEN BUILD INTO
THE REGION TUESDAY NIGHT AND LAST THROUGH MID WEEK.

LCZ460-200830-
LAKE ST CLAIR-
403 PM EDT SUN OCT 19 2014

.TONIGHT...SOUTHWEST WINDS 10 TO 15 KNOTS. CLOUDY THROUGH MIDNIGHT...
THEN A CHANCE OF LIGHT SHOWERS LATE. WAVES 2 FEET OR LESS.
.MONDAY...SOUTHWEST WINDS 15 TO 20 KNOTS...BECOMING WEST 5 TO
10 KNOTS. SHOWERS LIKELY THROUGH EARLY AFTERNOON...THEN SHOWERS BY
MID AFTERNOON. WAVES 2 FEET OR LESS.
.MONDAY NIGHT...NORTHWEST WINDS 10 TO 15 KNOTS. CLOUDY WITH A CHANCE
OF SHOWERS. WAVES 2 FEET OR LESS.
.TUESDAY...NORTHWEST WINDS 10 TO 15 KNOTS...BECOMING NORTH 15 TO
20 KNOTS BY LATE MORNING. LIGHT SHOWERS LIKELY THROUGH EARLY
AFTERNOON...THEN A CHANCE OF LIGHT SHOWERS BY MID AFTERNOON. CLOUDY.
WAVES 2 FEET OR LESS.
.TUESDAY NIGHT...NORTH WINDS 15 TO 20 KNOTS...DIMINISHING TO 10 TO
15 KNOTS AFTER MIDNIGHT. MOSTLY CLOUDY THROUGH MIDNIGHT...BECOMING
PARTLY CLOUDY OVERNIGHT. WAVES 1 TO 3 FEET.
.WEDNESDAY...NORTH WINDS 10 TO 15 KNOTS...DIMINISHING TO 5 TO
10 KNOTS BY MID AFTERNOON...THEN INCREASING TO 10 TO 15 KNOTS
THROUGH MIDNIGHT. PARTLY SUNNY...BECOMING MOSTLY SUNNY BY MID
AFTERNOON...BECOMING CLEAR. WAVES 2 FEET OR LESS.
.THURSDAY...NORTHWEST WINDS 5 TO 10 KNOTS. MOSTLY CLEAR. WAVES
2 FEET OR LESS.
.FRIDAY...WEST WINDS 5 TO 10 KNOTS. MOSTLY CLEAR. WAVES 2 FEET OR
LESS.

$$

BT

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





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