Great Lakes Forecast
Issued by NWS

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FZUS63 KDTX 310747
GLFSC

LAKE ST CLAIR FORECAST
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
347 AM EDT FRI OCT 31 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...LOW PRESSURE...29.90 INCHES...WILL MOVE FROM NORTHERN
LAKE HURON THIS MORNING TO THE UPPER OHIO VALLEY BY EVENING. THE
LOW WILL THEN WEAKEN OVER THE APPALACHIANS TONIGHT AS LOW PRESSURE
DEEPENS OFF THE EAST COAST. MEANWHILE...HIGH PRESSURE OF 30.70
INCHES WILL MOVE FROM THE NORTHERN PLAINS THIS MORNING TO THE
WESTERN GREAT LAKES BY SATURDAY AFTERNOON. THIS HIGH WILL DRIFT
EAST OF THE REGION BY MONDAY.

LCZ460-312015-
LAKE ST CLAIR-
347 AM EDT FRI OCT 31 2014

...GALE WARNING IN EFFECT FROM THIS EVENING THROUGH SATURDAY
MORNING...

.TODAY...WEST WINDS 5 TO 10 KNOTS...BECOMING NORTH 10 TO 15 KNOTS BY
EARLY AFTERNOON...THEN INCREASING TO 20 TO 25 KNOTS WITH GUSTS TO
30 KNOTS LATE. LIGHT SHOWERS THROUGH MID AFTERNOON...THEN LIGHT
SHOWERS AND A CHANCE OF LIGHT SNOW SHOWERS LATE. WAVES 2 FEET OR
LESS.
.TONIGHT...NORTH WINDS 20 TO 25 KNOTS...DIMINISHING TO 15 TO
20 KNOTS AFTER MIDNIGHT. GUSTS TO 35 KNOT GALES. LIGHT SHOWERS
LIKELY AND A CHANCE OF LIGHT SNOW SHOWERS THROUGH MIDNIGHT...THEN A
CHANCE OF LIGHT SHOWERS LATE. CLOUDY. WAVES 1 TO 3 FEET.
.SATURDAY...NORTH WINDS 15 TO 20 KNOTS. A CHANCE OF LIGHT SNOW
SHOWERS EARLY. CLOUDY THROUGH MID AFTERNOON...BECOMING PARTLY SUNNY.
WAVES 1 TO 3 FEET.
.SATURDAY NIGHT...NORTH WINDS 15 TO 20 KNOTS...BECOMING NORTHWEST
10 TO 15 KNOTS BY MIDNIGHT. PARTLY CLOUDY. WAVES 2 FEET OR LESS.
.SUNDAY...NORTHWEST WINDS 10 TO 15 KNOTS...BECOMING SOUTHWEST 5 TO
10 KNOTS BY MID AFTERNOON. PARTLY SUNNY EARLY...BECOMING MOSTLY
CLEAR. WAVES 2 FEET OR LESS.
.MONDAY...SOUTHWEST WINDS 10 TO 15 KNOTS. A CHANCE OF LIGHT SHOWERS.
PARTLY CLOUDY. WAVES 2 FEET OR LESS.
.TUESDAY...WEST WINDS 15 TO 20 KNOTS. MOSTLY CLOUDY WITH A CHANCE OF
LIGHT SHOWERS. WAVES 2 FEET OR LESS.

$$

JVC/SC

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



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