Great Lakes Forecast
Issued by NWS

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000
FZUS63 KDTX 221941
GLFSC

LAKE ST CLAIR FORECAST
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
341 PM EDT MON AUG 22 2016

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 AVERAGING...30.20 INCHES...WILL LINGER OVER THE
SOUTHERN GREAT LAKES THROUGH TUESDAY NIGHT. BY WEDNESDAY...A LOW
PRESSURE SYSTEM AROUND...29.60 INCHES...WILL TRACK NORTH OF LAKE
SUPERIOR AND INTO NORTHERN QUEBEC. THIS LOW WILL DRAG A COLD FRONT
ACROSS SOUTHEAST MICHIGAN AND THE EASTERN GREAT LAKES ON WEDNESDAY
AND THURSDAY.

LCZ460-230815-
LAKE ST CLAIR-
341 PM EDT MON AUG 22 2016

.TONIGHT...SOUTHWEST WINDS 5 TO 10 KNOTS. CLEAR. WAVES 2 FEET OR
LESS.
.TUESDAY...SOUTHWEST WINDS 5 TO 10 KNOTS. SUNNY. WAVES 2 FEET OR
LESS.
.TUESDAY NIGHT...SOUTH WINDS 5 TO 10 KNOTS THROUGH MIDNIGHT...
BECOMING LIGHT AND VARIABLE OVERNIGHT. CLEAR. WAVES 2 FEET OR LESS.
.WEDNESDAY...SOUTH WINDS 5 TO 10 KNOTS...INCREASING TO 10 TO
15 KNOTS BY LATE MORNING. PARTLY SUNNY. A CHANCE OF SHOWERS AND
THUNDERSTORMS LATE. WAVES 2 FEET OR LESS.
.WEDNESDAY NIGHT...SOUTH WINDS 10 TO 15 KNOTS...BECOMING SOUTHWEST
15 TO 20 KNOTS BY MIDNIGHT...THEN DIMINISHING TO 10 TO 15 KNOTS
AFTER MIDNIGHT. MOSTLY CLOUDY WITH A CHANCE OF SHOWERS AND
THUNDERSTORMS. WAVES 2 FEET OR LESS.
.THURSDAY...SOUTHWEST WINDS 10 TO 15 KNOTS...BECOMING WEST 5 TO
10 KNOTS THROUGH MIDNIGHT. MOSTLY CLOUDY WITH SHOWERS AND
THUNDERSTORMS LIKELY...THEN PARTLY CLOUDY THROUGH MIDNIGHT. WAVES
2 FEET OR LESS.
.FRIDAY...NORTH WINDS 5 TO 10 KNOTS. MOSTLY CLEAR. WAVES 2 FEET OR
LESS.
.SATURDAY...EAST WINDS 5 TO 10 KNOTS. PARTLY CLOUDY. WAVES 2 FEET OR
LESS.

$$

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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