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000
FZUS63 KDTX 191323
GLFSC

LAKE ST CLAIR FORECAST
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
923 AM EDT SUN MAY 19 2013

.SYNOPSIS...WEAKENING HIGH PRESSURE...AVERAGING 30.00 INCHES...WILL
PERSIST ACROSS THE GREAT LAKES AREA THROUGH TONIGHT. A LARGE LOW
PRESSURE SYSTEM...AVERAGING 29.50 INCHES...WILL STALL OVER THE
NORTHERN PLAINS EARLY IN THE WEEK BRINGING INCREASING CHANCES OF
SHOWERS AND THUNDERSTORMS THROUGH MIDWEEK. THE LOW WILL PASS THROUGH
THE SOUTHERN LAKES LATE IN THE WEEK ALLOWING HIGH PRESSURE TO BUILD
BACK IN FROM THE NORTH.

LCZ460-192030-
LAKE ST CLAIR-
923 AM EDT SUN MAY 19 2013

.REST OF TODAY...LIGHT AND VARIABLE WINDS...BECOMING SOUTHEAST 5 TO
10 KNOTS BY AFTERNOON. PARTLY SUNNY. WAVES 2 FEET OR LESS.
.TONIGHT...SOUTH WINDS 5 TO 10 KNOTS IN THE EVENING...BECOMING LIGHT
AND VARIABLE OVERNIGHT. MOSTLY CLEAR. WAVES 2 FEET OR LESS.
.MONDAY...LIGHT AND VARIABLE WINDS...BECOMING SOUTHEAST 5 TO
10 KNOTS BY MID AFTERNOON. PARTLY SUNNY WITH A CHANCE OF SHOWERS AND
THUNDERSTORMS. WAVES 2 FEET OR LESS.
.MONDAY NIGHT...SOUTH WINDS 5 TO 10 KNOTS. MOSTLY CLOUDY WITH
SHOWERS AND THUNDERSTORMS LIKELY. WAVES 2 FEET OR LESS.
.TUESDAY...LIGHT AND VARIABLE WINDS...BECOMING SOUTH 5 TO 10 KNOTS
BY MID AFTERNOON. MOSTLY CLOUDY WITH SHOWERS AND THUNDERSTORMS
LIKELY. WAVES 2 FEET OR LESS.
.WEDNESDAY...SOUTH WINDS 5 TO 10 KNOTS. MOSTLY CLOUDY WITH SHOWERS
AND THUNDERSTORMS LIKELY. WAVES 2 FEET OR LESS.
.THURSDAY...NORTH WINDS 5 TO 10 KNOTS. MOSTLY CLOUDY WITH SHOWERS
LIKELY AND A CHANCE OF THUNDERSTORMS. WAVES 2 FEET OR LESS.

$$

SF

WAVES ARE THE SIGNIFICANT WAVE HEIGHT - THE AVERAGE OF THE HIGHEST
1/3 OF THE WAVE SPECTRUM. MAXIMUM WAVE HEIGHT IS THE HIGHEST 1/20
WAVE HEIGHT.

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