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000
FZUS63 KDTX 181937
GLFSC

LAKE ST CLAIR FORECAST
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
325 PM EDT SAT MAY 18 2013

.SYNOPSIS...A HIGH PRESSURE SYSTEM...AVERAGING 30.20 INCHES...WILL
PERSIST ACROSS THE GREAT LAKES AREA THROUGH THE WEEKEND. 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.

LCZ460-190800-
LAKE ST CLAIR-
325 PM EDT SAT MAY 18 2013

.TONIGHT...EAST WINDS 5 TO 10 KNOTS. PARTLY CLOUDY. WAVES 2 FEET OR
LESS.
.SUNDAY...LIGHT AND VARIABLE WINDS...BECOMING SOUTHEAST 5 TO
10 KNOTS BY AFTERNOON. PARTLY SUNNY. WAVES 2 FEET OR LESS.
.SUNDAY NIGHT...SOUTHEAST WINDS 5 TO 10 KNOTS THROUGH MIDNIGHT...
BECOMING LIGHT AND VARIABLE OVERNIGHT. MOSTLY CLEAR. WAVES 2 FEET OR
LESS.
.MONDAY...SOUTH WINDS 5 TO 10 KNOTS. A CHANCE OF SHOWERS AND
THUNDERSTORMS BY MID AFTERNOON. PARTLY SUNNY. WAVES 2 FEET OR LESS.
.MONDAY NIGHT...SOUTHEAST WINDS 5 TO 10 KNOTS THROUGH MIDNIGHT...
BECOMING LIGHT AND VARIABLE OVERNIGHT. MOSTLY CLOUDY WITH SHOWERS
AND THUNDERSTORMS LIKELY. WAVES 2 FEET OR LESS.
.TUESDAY...LIGHT AND VARIABLE WINDS. 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.

$$

CB

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)