Great Lakes Forecast
Issued by NWS

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FZUS63 KDTX 301341
GLFSC

LAKE ST CLAIR FORECAST
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
941 AM EDT THU OCT 30 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 REMAIN OVER THE CENTRAL GREAT LAKES THROUGH THIS
AFTERNOON BEFORE STARTING TO SHIFT EAST. 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 WILL LIKELY DEVELOP BEHIND THE FRONT OVER
MUCH OF LAKE HURON FRIDAY THROUGH FRIDAY NIGHT.

LCZ460-302015-
LAKE ST CLAIR-
941 AM EDT THU OCT 30 2014

.REST OF TODAY...NORTHWEST WINDS 5 TO 10 KNOTS BY LATE MORNING...
BECOMING LIGHT AND VARIABLE. PARTLY SUNNY. WAVES 2 FEET OR LESS.
.TONIGHT...SOUTHWEST WINDS 5 TO 10 KNOTS. A CHANCE OF LIGHT SHOWERS
BY MIDNIGHT. LIGHT SHOWERS LIKELY LATE. WAVES 2 FEET OR LESS.
.FRIDAY...SOUTHWEST WINDS 5 TO 10 KNOTS EARLY...BECOMING LIGHT AND
VARIABLE...THEN BECOMING NORTHWEST 10 TO 15 KNOTS BY EARLY
AFTERNOON...BECOMING NORTH 15 TO 20 KNOTS WITH GUSTS TO 30 KNOTS.
LIGHT SHOWERS THROUGH MID AFTERNOON...THEN LIGHT SHOWERS WITH LIGHT
SNOW SHOWERS LIKELY LATE. WAVES 2 FEET OR LESS. A SMALL CRAFT
ADVISORY MAY BE NEEDED.
.FRIDAY NIGHT...NORTH WINDS 20 TO 25 KNOTS. GUSTS TO 30 KNOTS EARLY
IN THE EVENING. LIGHT RAIN AND SNOW SHOWERS. 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 MID AFTERNOON...THEN PARTLY CLOUDY LATE.
WAVES 1 TO 3 FEET.
.SUNDAY...SOUTH WINDS 5 TO 10 KNOTS. 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.

$$

HLO

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



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