Great Lakes Forecast
Issued by NWS

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FZUS63 KDTX 300158
GLFSC

LAKE ST CLAIR FORECAST
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
958 PM EDT WED OCT 29 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 RIDGE OF HIGH PRESSURE...AVERAGING 30.10 INCHES...WILL
BUILD INTO THE REGION TONIGHT AND HOLD OVERHEAD THURSDAY. A LOW
PRESSURE SYSTEM WILL THEN DEEPEN AS IT DROPS THROUGH THE CENTRAL
GREAT LAKES THURSDAY NIGHT AND FRIDAY...PULLING A STRONG COLD
FRONT ACROSS THE AREA FRIDAY. GALE FORCE WINDS MAY DEVELOP BEHIND
THE FRONT FRIDAY THROUGH FRIDAY NIGHT...PARTICULARLY OVER LAKE
HURON.

LCZ460-300815-
LAKE ST CLAIR-
958 PM EDT WED OCT 29 2014

.REST OF TONIGHT...NORTHWEST WINDS 10 TO 15 KNOTS...DIMINISHING TO
5 TO 10 KNOTS LATE. MOSTLY CLOUDY...BECOMING PARTLY CLOUDY
OVERNIGHT. WAVES 2 FEET OR LESS.
.THURSDAY...NORTHWEST WINDS 5 TO 10 KNOTS THROUGH MID AFTERNOON...
BECOMING LIGHT AND VARIABLE. PARTLY SUNNY. WAVES 2 FEET OR LESS.
.THURSDAY NIGHT...WEST WINDS 5 TO 10 KNOTS. A CHANCE OF LIGHT
SHOWERS AFTER MIDNIGHT. CLOUDY. WAVES 2 FEET OR LESS.
.FRIDAY...WEST WINDS 5 TO 10 KNOTS...BECOMING NORTHWEST 10 TO 15
KNOTS BY LATE MORNING...THEN BECOMING NORTH 15 TO 20 KNOTS BY EARLY
AFTERNOON...INCREASING TO 20 TO 25 KNOTS LATE. LIGHT SHOWERS THROUGH
MID AFTERNOON...THEN LIGHT RAIN AND SNOW SHOWERS LATE. WAVES 2 FEET
OR LESS. A SMALL CRAFT ADVISORY MAY BE NEEDED.
.FRIDAY NIGHT...NORTH WINDS 20 TO 25 KNOTS WITH GUSTS TO 30 KNOTS...
DIMINISHING TO 15 TO 20 KNOTS AFTER MIDNIGHT...THEN INCREASING TO
20 TO 25 KNOTS LATE. CLOUDY WITH LIGHT SNOW SHOWERS LIKELY. WAVES
1 TO 3 FEET.
.SATURDAY...NORTH WINDS 20 TO 25 KNOTS...DIMINISHING TO 15 TO
20 KNOTS BY MID AFTERNOON. MOSTLY CLOUDY WITH A CHANCE OF LIGHT RAIN
AND SNOW SHOWERS THROUGH EARLY AFTERNOON...THEN PARTLY CLOUDY BY MID
AFTERNOON. WAVES 1 TO 3 FEET.
.SUNDAY...WEST WINDS 10 TO 15 KNOTS. MOSTLY CLEAR. WAVES 2 FEET OR
LESS.
.MONDAY...SOUTH WINDS 10 TO 15 KNOTS. PARTLY CLOUDY. WAVES 2 FEET OR
LESS.

$$

BT

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



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