Great Lakes Forecast
Issued by NWS

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000
FZUS63 KDTX 121342
GLFSC

LAKE ST CLAIR FORECAST
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
941 AM EDT SAT JUL 12 2014

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 OF 30.20 INCHES WILL PERSIST OVER THE
CENTRAL GREAT LAKES REGION. THIS WILL PROMOTE FAVORABLE MARINE WIND
AND WAVES TODAY WHEN LIGHT SOUTH WIND WILL BRING WARMER AND MORE
HUMID AIR INTO THE REGION. THIS UNSTABLE AIRMASS WILL BRING A CHANCE
OF THUNDERSTORMS LATE TODAY...THAT WILL LAST THROUGH THE WEEKEND AS
A COLD FRONT SWEEPS THROUGH THE REGION ON SUNDAY. ANOTHER COLD FRONT
IS EXPECTED ON MONDAY...BRINGING ANOTHER SHOT OF COLD AIR TO THE
GREAT LAKES REGION.

LCZ460-122000-
LAKE ST CLAIR-
941 AM EDT SAT JUL 12 2014

.REST OF TODAY...SOUTH WINDS 5 TO 10 KNOTS...INCREASING TO 10 TO
15 KNOTS BY MID AFTERNOON. A CHANCE OF SHOWERS AND THUNDERSTORMS
LATE. PARTLY SUNNY. WAVES 2 FEET OR LESS.
.TONIGHT...SOUTH WINDS 5 TO 10 KNOTS...BECOMING SOUTHWEST 10 TO
15 KNOTS AFTER MIDNIGHT. SHOWERS AND THUNDERSTORMS LIKELY THROUGH
MIDNIGHT...THEN SHOWERS AND THUNDERSTORMS AFTER MIDNIGHT. WAVES
2 FEET OR LESS.
.SUNDAY...WEST WINDS 10 TO 15 KNOTS. SHOWERS AND THUNDERSTORMS
LIKELY EARLY...THEN A CHANCE OF SHOWERS AND THUNDERSTORMS BY LATE
MORNING. PARTLY SUNNY. WAVES 2 FEET OR LESS.
.SUNDAY NIGHT...WEST WINDS 10 TO 15 KNOTS...BECOMING NORTH 5 TO
10 KNOTS BY MIDNIGHT. PARTLY CLOUDY. WAVES 2 FEET OR LESS.
.MONDAY...WEST WINDS 5 TO 10 KNOTS. PARTLY SUNNY WITH A CHANCE OF
SHOWERS AND THUNDERSTORMS...THEN PARTLY CLOUDY WITH A CHANCE OF
LIGHT SHOWERS THROUGH MIDNIGHT. WAVES 2 FEET OR LESS.
.TUESDAY...WEST WINDS 10 TO 15 KNOTS. A CHANCE OF LIGHT SHOWERS.
PARTLY CLOUDY. WAVES 2 FEET OR LESS.
.WEDNESDAY...WEST WINDS 10 TO 15 KNOTS. A CHANCE OF SHOWERS. PARTLY
CLOUDY. WAVES 2 FEET OR LESS.

$$

JVC

GRAPHICAL MARINE FORECASTS ARE AVAILABLE ONLINE AT
WEATHER.GOV/GREATLAKES (ALL LOWER CASE)






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