Great Lakes Forecast
Issued by NWS

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000
FZUS63 KDTX 191447
GLFSC

LAKE ST CLAIR FORECAST
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
947 AM EST THU JAN 19 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...HIGH PRESSURE...30.20 INCHES...WILL EXPAND FROM THE OHIO
VALLEY THIS MORNING TO THE EASTERN GREAT LAKES AND MID ATLANTIC THIS
AFTERNOON. LOW PRESSURE...29.60 INCHES...WILL TRACK FROM SOUTHERN
MISSOURI TO CENTRAL INDIANA TONIGHT. THIS LOW WILL LIFT NORTH ACROSS
LOWER MICHIGAN ON FRIDAY...WEAKENING TO 29.70 INCHES. WEAK LOW
PRESSURE WILL HOLD STEADY ACROSS THE UPPER MIDWEST OVER THE WEEKEND.
A DEEPENING LOW PRESSURE SYSTEM IS FORECAST TO LIFT ACROSS THE EAST
COAST ON MONDAY.

LCZ460-192115-
LAKE ST CLAIR-
947 AM EST THU JAN 19 2017

.REST OF TODAY...LIGHT AND VARIABLE WINDS. MOSTLY CLOUDY.
.TONIGHT...LIGHT AND VARIABLE WINDS...BECOMING EAST 5 TO 10 KNOTS BY
LATE EVENING. MOSTLY CLOUDY. A CHANCE OF LIGHT RAIN AFTER MIDNIGHT.
.FRIDAY...EAST WINDS 5 TO 10 KNOTS IN THE MORNING...BECOMING LIGHT
AND VARIABLE. RAIN IN THE MORNING...THEN A CHANCE OF LIGHT RAIN BY
AFTERNOON.
.FRIDAY NIGHT...LIGHT AND VARIABLE WINDS...BECOMING SOUTHEAST 5 TO
10 KNOTS LATE. CLOUDY.
.SATURDAY...SOUTHEAST WINDS 5 TO 10 KNOTS...BECOMING LIGHT AND
VARIABLE. MOSTLY CLOUDY. A CHANCE OF LIGHT RAIN IN THE EVENING.
.SUNDAY...NORTHEAST WINDS 10 TO 15 KNOTS. CLOUDY WITH A CHANCE OF
RAIN.
.MONDAY...NORTHEAST WINDS 10 TO 15 KNOTS. CLOUDY WITH RAIN LIKELY
AND A CHANCE OF SNOW.

WAVES OMITTED DUE TO ICE COVERAGE.

$$

DRK

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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