Great Lakes Forecast
Issued by NWS

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090
FZUS63 KDTX 170745
GLFSC

LAKE ST CLAIR FORECAST
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
345 AM EDT WED MAY 17 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...A STATIONARY FRONT WILL EXTEND SOUTHWEST FROM LOW
PRESSURE CROSSING JAMES BAY TO A SECOND LOW ORGANIZING OVER THE
CENTRAL PLAINS. THIS LOW...29.30 INCHES...WILL TRACK ALONG THE
FRONTAL BOUNDARY TONIGHT INTO THURSDAY...REACHING NORTHERN LOWER
MICHIGAN BY AFTERNOON. AS IT CONTINUES INTO ONTARIO...THE FRONT WILL
SAG SOUTH THROUGH THE AREA AS A COLD FRONT. HIGH PRESSURE WILL THEN
BUILD INTO AREA THURSDAY NIGHT INTO FRIDAY.

LCZ460-172000-
LAKE ST CLAIR-
345 AM EDT WED MAY 17 2017

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

.TODAY...SOUTHWEST WINDS 10 TO 15 KNOTS BECOMING SOUTH 15 TO 20
KNOTS WITH GUSTS TO 30 KNOTS IN THE AFTERNOON. PARTLY SUNNY. WAVES 1
TO 3 FEET.
.TONIGHT...SOUTH WINDS 15 TO 20 KNOTS DIMINISHING TO 10 TO 15 KNOTS
IN THE LATE EVENING AND OVERNIGHT. PARTLY CLOUDY. WAVES 1 TO 3 FEET.
.THURSDAY...SOUTH WINDS 10 TO 15 KNOTS BECOMING SOUTHWEST 15 TO 20
KNOTS IN THE LATE MORNING AND AFTERNOON. PARTLY SUNNY WITH A CHANCE
OF SHOWERS AND THUNDERSTORMS. WAVES 1 TO 3 FEET.
.THURSDAY NIGHT...WEST WINDS 15 TO 20 KNOTS DIMINISHING TO 10 TO 15
KNOTS IN THE LATE EVENING AND EARLY MORNING...THEN VEERING TO THE
NORTH EARLY IN THE MORNING. PARTLY CLOUDY. A CHANCE OF SHOWERS AND
THUNDERSTORMS EARLY IN THE EVENING. WAVES 2 FEET OR LESS.
.FRIDAY...NORTH WINDS 10 TO 15 KNOTS. PARTLY SUNNY BECOMING MOSTLY
SUNNY IN THE AFTERNOON AND EVENING BECOMING PARTLY CLOUDY. WAVES 2
FEET OR LESS.
.SATURDAY...EAST WINDS 10 TO 15 KNOTS. PARTLY CLOUDY. WAVES 2 FEET
OR LESS.
.SUNDAY...SOUTHWEST WINDS 10 TO 15 KNOTS. MOSTLY CLOUDY WITH SHOWERS
LIKELY AND A CHANCE OF THUNDERSTORMS. WAVES 2 FEET OR LESS.

$$

JVC

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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