Great Lakes Forecast
Issued by NWS

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FZUS63 KDTX 191450
GLFSC

LAKE ST CLAIR FORECAST
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
950 AM EST WED NOV 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...LOW PRESSURE...AVERAGING 29.70 INCHES...WILL DEVELOP
OVER THE WESTERN GREAT LAKES TODAY AND DEEPEN TO 29.50 INCHES AS IT
TRAVERSES LAKE HURON WEDNESDAY NIGHT. HIGH PRESSURE...AVERAGING
30.30 INCHES...WILL THEN SLOWLY BUILD NORTH INTO THE AREA ON
THURSDAY DISPLACING THE LOW NORTHEASTWARD.

LCZ460-192115-
LAKE ST CLAIR-
950 AM EST WED NOV 19 2014

...SMALL CRAFT ADVISORY IN EFFECT FROM 7 PM EST THIS EVENING THROUGH
THURSDAY AFTERNOON...

.REST OF TODAY...SOUTH WINDS 15 TO 20 KNOTS...BECOMING SOUTHWEST
LATE. LIGHT SNOW. WAVES 1 TO 3 FEET...BUILDING TO 2 TO 4 FEET IN
THE AFTERNOON...THEN SUBSIDING TO 1 TO 3 FEET LATE.
.TONIGHT...SOUTHWEST WINDS 20 TO 25 KNOTS...WITH GUSTS TO 30
KNOTS. CLOUDY WITH LIGHT SNOW SHOWERS LIKELY. WAVES 1 TO 3 FEET.
.THURSDAY...SOUTHWEST WINDS 20 TO 25 KNOTS...BECOMING WEST 15 TO
20 KNOTS. MOSTLY CLOUDY WITH A CHANCE OF LIGHT SNOW SHOWERS. WAVES
1 TO 3 FEET.
.THURSDAY NIGHT...WEST WINDS 15 TO 20 KNOTS...DIMINISHING TO 10 TO
15 KNOTS AFTER MIDNIGHT. PARTLY CLOUDY. WAVES 2 FEET OR LESS.
.FRIDAY...WEST WINDS 10 TO 15 KNOTS...BECOMING SOUTHWEST 5 TO
10 KNOTS BY EVENING. MOSTLY CLEAR. WAVES 2 FEET OR LESS.
.SATURDAY...SOUTH WINDS 10 TO 15 KNOTS. LIGHT SHOWERS LIKELY AND A
CHANCE OF LIGHT FREEZING RAIN. PARTLY CLOUDY. WAVES 2 FEET OR LESS.
.SUNDAY...SOUTH WINDS 15 TO 20 KNOTS. CLOUDY WITH LIGHT SHOWERS
LIKELY. WAVES 1 TO 3 FEET.

$$

SC

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


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