Great Lakes Forecast
Issued by NWS

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FZUS63 KDTX 250903
GLFSC

LAKE ST CLAIR FORECAST
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
403 AM EST SAT FEB 25 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 OVER NORTHERN LAKE HURON DURING THE EARLY
MORNING WILL DEEPEN TO 29.20 INCHES WHILE MOVING INTO CANADA DURING
THE DAY. THIS WILL PRODUCE WESTERLY GALES THROUGH THIS EVENING
BEFORE DIMINISHING OVERNIGHT. SOUTHWEST WIND WILL THEN INCREASE
AGAIN AS THE NEXT LOW ARRIVES OVER LAKE SUPERIOR SUNDAY. ANOTHER
PERIOD OF SOUTHWEST GALES IS LIKELY AS THIS SYSTEM MOVES THROUGH THE
REGION. MARINE CONDITIONS WILL THEN IMPROVE CONSIDERABLY TO START
NEXT WEEK.

LCZ460-252115-
LAKE ST CLAIR-
403 AM EST SAT FEB 25 2017

...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING...

.TODAY...SOUTHWEST WINDS 10 TO 15 KNOTS...BECOMING WEST 20 TO
25 KNOTS WITH GUSTS TO 30 KNOTS. MOSTLY CLOUDY. A CHANCE OF LIGHT
RAIN AND SNOW SHOWERS IN THE MORNING. WAVES 1 TO 3 FEET.
.TONIGHT...WEST WINDS 20 TO 25 KNOTS WITH GUSTS TO 30 KNOTS...
DIMINISHING TO 15 TO 20 KNOTS IN THE LATE EVENING AND OVERNIGHT.
MOSTLY CLOUDY IN THE EVENING...BECOMING PARTLY CLOUDY. WAVES 1 TO
3 FEET.
.SUNDAY...SOUTHWEST WINDS 15 TO 20 KNOTS WITH GUSTS TO 30 KNOTS.
PARTLY SUNNY. WAVES 1 TO 3 FEET.
.SUNDAY NIGHT...SOUTHWEST WINDS 15 TO 20 KNOTS WITH GUSTS TO
30 KNOTS...DIMINISHING TO 10 TO 15 KNOTS EARLY IN THE MORNING.
PARTLY CLOUDY. WAVES 1 TO 3 FEET.
.MONDAY...SOUTH WINDS 5 TO 10 KNOTS. PARTLY CLOUDY. WAVES 2 FEET OR
LESS.
.TUESDAY...SOUTH WINDS 5 TO 10 KNOTS. MOSTLY CLOUDY WITH RAIN
LIKELY. WAVES 2 FEET OR LESS.
.WEDNESDAY...NORTH WINDS 10 TO 15 KNOTS. MOSTLY CLOUDY WITH RAIN
LIKELY AND A CHANCE OF SNOW. WAVES 2 FEET OR LESS.

$$

BT

EXPERIMENTAL MODERNIZED OPEN LAKE FORECAST IS AVAILABLE ONLINE AT
WEATHER.GOV/DTX/GLFTABLESC (ALL LOWER CASE)

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



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