000
FZUS63 KDTX 181348
GLFSC

LAKE ST CLAIR FORECAST
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
945 AM 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.

LCZ460-182000-
LAKE ST CLAIR-
945 AM EDT SAT MAY 18 2013

.REST OF TODAY...EAST WINDS 5 TO 10 KNOTS. MOSTLY CLOUDY. WAVES
2 FEET OR LESS.
.TONIGHT...EAST WINDS 5 TO 10 KNOTS. PARTLY CLOUDY. WAVES 2 FEET OR
LESS.
.SUNDAY...SOUTHEAST WINDS 5 TO 10 KNOTS. PARTLY SUNNY. WAVES 2 FEET
OR LESS.
.SUNDAY NIGHT...SOUTHEAST WINDS 5 TO 10 KNOTS. MOSTLY CLEAR. WAVES
2 FEET OR LESS.
.MONDAY...SOUTH WINDS 5 TO 10 KNOTS. PARTLY SUNNY THROUGH EARLY
AFTERNOON...THEN PARTLY CLOUDY WITH SHOWERS AND THUNDERSTORMS LIKELY
BY MID AFTERNOON. WAVES 2 FEET OR LESS.
.TUESDAY...WEST WINDS 5 TO 10 KNOTS. MOSTLY CLOUDY WITH SHOWERS AND
THUNDERSTORMS LIKELY. WAVES 2 FEET OR LESS.
.WEDNESDAY...SOUTHEAST WINDS 5 TO 10 KNOTS. CLOUDY WITH SHOWERS AND
THUNDERSTORMS LIKELY. 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)