Great Lakes Forecast
Issued by NWS

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FZUS63 KDTX 130840
GLFSC

LAKE ST CLAIR FORECAST
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
340 AM EST MON FEB 13 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...29.70 INCHES...WILL CONTINUE TO TRACK
EAST THROUGH THE MID ATLANTIC STATES.  A RIDGE OF HIGH
PRESSURE...30.20 INCHES...WILL BUILD INTO THE CENTRAL GREAT LAKES
TODAY.  A NEW SURFACE TROUGH WILL THEN DEVELOP OVER THE REGION ON
TUESDAY...FOLLOWED BY A STRONG COLD FRONT SWINGING THROUGH ON
TUESDAY NIGHT.

LCZ460-132115-
LAKE ST CLAIR-
340 AM EST MON FEB 13 2017

.TODAY...NORTHWEST WINDS 15 TO 20 KNOTS...BECOMING WEST 5 TO 15
KNOTS BY EARLY AFTERNOON...THEN BECOMING LIGHT AND VARIABLE LATE
IN THE AFTERNOON. PARTLY SUNNY.
.TONIGHT...SOUTH WINDS 5 TO 10 KNOTS...BECOMING SOUTHWEST 10 TO
15 KNOTS IN THE LATE EVENING AND OVERNIGHT. MOSTLY CLEAR.
.TUESDAY...SOUTHWEST WINDS 10 TO 15 KNOTS. PARTLY SUNNY.
.TUESDAY NIGHT...WEST WINDS 10 TO 15 KNOTS. MOSTLY CLOUDY...BECOMING
PARTLY CLOUDY AFTER MIDNIGHT...BECOMING MOSTLY CLOUDY. SCATTERED
LIGHT SNOW SHOWERS UNTIL EARLY MORNING.
.WEDNESDAY...NORTHWEST WINDS 15 TO 20 KNOTS...DIMINISHING TO 10 TO
15 KNOTS IN THE EVENING. MOSTLY CLOUDY.
.THURSDAY...WEST WINDS 10 TO 15 KNOTS. PARTLY CLOUDY.
.FRIDAY...SOUTHEAST WINDS 5 TO 10 KNOTS. PARTLY CLOUDY.

WAVES OMITTED DUE TO ICE COVERAGE.

$$

SF

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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