Great Lakes Forecast
Issued by NWS

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FZUS63 KDTX 270743
GLFSC

LAKE ST CLAIR FORECAST
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
343 AM EDT MON MAR 27 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...29.90 INCHES...WILL MOVE FROM LAKE HURON
EARLY THIS MORNING TO SOUTHERN QUEBEC BY EVENING. ANOTHER LOW
PRESSURE SYSTEM...29.80 INCHES...IS FORECAST TO TRACK ACROSS THE
OHIO VALLEY TONIGHT. THIS LOW WILL MOVE TO THE MID ATLANTIC ON
TUESDAY AS HIGH PRESSURE OF 30.40 INCHES EXPANDS ACROSS THE NORTHERN
GREAT LAKES. THIS HIGH WILL EXPAND ACROSS THE EASTERN GREAT LAKES BY
THURSDAY. ANOTHER LOW PRESSURE SYSTEM IS FORECAST TO TRACK ACROSS
THE OHIO VALLEY ON FRIDAY.

LCZ460-272015-
LAKE ST CLAIR-
343 AM EDT MON MAR 27 2017

.TODAY...SOUTHWEST WINDS 10 TO 15 KNOTS DIMINISHING TO 5 TO 10 KNOTS
IN THE LATE MORNING AND AFTERNOON. MOSTLY CLOUDY. WAVES 2 FEET OR
LESS.
.TONIGHT...SOUTHWEST WINDS 5 TO 10 KNOTS THIS EVENING BECOMING LIGHT
AND VARIABLE...THEN BECOMING NORTHEAST 5 TO 10 KNOTS AFTER MIDNIGHT
INCREASING TO 10 TO 15 KNOTS. CLOUDY WITH A CHANCE OF LIGHT RAIN.
WAVES 2 FEET OR LESS.
.TUESDAY...NORTH WINDS 10 TO 15 KNOTS. CLOUDY WITH A CHANCE OF LIGHT
RAIN EARLY IN THE MORNING...THEN MOSTLY CLOUDY IN THE LATE MORNING
AND AFTERNOON. WAVES 2 FEET OR LESS.
.TUESDAY NIGHT...NORTH WINDS 10 TO 15 KNOTS. MOSTLY CLEAR. WAVES 2
FEET OR LESS.
.WEDNESDAY...NORTHEAST WINDS 10 TO 15 KNOTS. MOSTLY SUNNY BECOMING
PARTLY CLOUDY. WAVES 2 FEET OR LESS.
.THURSDAY...EAST WINDS 15 TO 20 KNOTS. RAIN. WAVES 2 FEET OR LESS.
.FRIDAY...NORTHEAST WINDS 10 TO 15 KNOTS. RAIN. WAVES 2 FEET OR
LESS.

$$

DRK

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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