Great Lakes Forecast
Issued by NWS

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000
FZUS63 KDTX 210749 RRA
GLFSC

LAKE ST CLAIR FORECAST
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
348 AM EDT FRI APR 21 2017

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 29.60 INCHES...WILL LIFT FROM
LAKE HURON THIS MORNING TO QUEBEC BY THIS EVENING. HIGH
PRESSURE...AVERAGING 30.10 INCHES...WILL BUILD OVER THE AREA BY
SATURDAY BRINGING COOLER DRIER CONDITIONS FOR THE WEEKEND.

LCZ460-212000-
LAKE ST CLAIR-
348 AM EDT FRI APR 21 2017

...SMALL CRAFT ADVISORY IN EFFECT FROM 10 AM EDT THIS MORNING
THROUGH THIS EVENING...

.TODAY...WEST WINDS 15 TO 20 KNOTS. PARTLY SUNNY. WAVES 2 FEET OR
LESS.
.TONIGHT...NORTHWEST WINDS 10 TO 15 KNOTS. MOSTLY CLOUDY UNTIL EARLY
MORNING BECOMING PARTLY CLOUDY. WAVES 2 FEET OR LESS.
.SATURDAY...NORTH WINDS 10 TO 15 KNOTS DIMINISHING TO 5 TO 10 KNOTS
IN THE AFTERNOON. PARTLY SUNNY. WAVES 2 FEET OR LESS.
.SATURDAY NIGHT...NORTHEAST WINDS 10 TO 15 KNOTS DIMINISHING TO 5 TO
10 KNOTS AFTER MIDNIGHT. MOSTLY CLEAR. WAVES 2 FEET OR LESS.
.SUNDAY...NORTHEAST WINDS 5 TO 10 KNOTS. CLEAR. WAVES 2 FEET OR
LESS.
.MONDAY...EAST WINDS 5 TO 10 KNOTS. MOSTLY CLEAR. WAVES 2 FEET OR
LESS.
.TUESDAY...SOUTHEAST WINDS 5 TO 10 KNOTS. PARTLY CLOUDY. WAVES 2
FEET OR LESS.

$$

CB

EXPERIMENTAL MODERNIZED OPEN LAKE FORECAST IS AVAILABLE ONLINE AT
WEATHER.GOV/DTX/GLFTABLESC

GRAPHICAL MARINE FORECASTS ARE AVAILABLE AT WEATHER.GOV/GREATLAKES



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