FZUS63 KDTX 200738 GLFSC LAKE ST CLAIR FORECAST NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI 337 AM EDT SAT SEP 20 2008 .SYNOPSIS...A COLD FRONT...AVERAGE PRESSURE 30.10 INCHES...WILL DROP SOUTH ACROSS THE GREAT LAKES TODAY...THEN WEAK OVER THE NORTHERN OHIO VALLEY BY SUNDAY. HIGH PRESSURE...30.40 INCHES...OVER CENTRAL CANADA WILL MOVE INTO EASTERN ONTARIO ON SUNDAY. THIS HIGH WILL LINGER OVER THE EASTERN GREAT LAKES THROUGH EARLY NEXT WEEK. LCZ460-201400- LAKE ST CLAIR- 337 AM EDT SAT SEP 20 2008 .TODAY...SOUTHWEST WINDS 5 TO 15 KNOTS. PARTLY SUNNY. WAVES 1 TO 2 FEET. .TONIGHT...VARIABLE WINDS 10 KNOTS OR LESS...BECOMING WEST 5 TO 10 KNOTS...THEN BECOMING NORTH 10 TO 15 KNOTS LATE. PARTLY CLOUDY. A CHANCE OF SPRINKLES. WAVES AROUND 1 FOOT. .SUNDAY...NORTH WINDS 10 TO 15 KNOTS. PARTLY SUNNY...BECOMING MOSTLY SUNNY DURING THE AFTERNOON. WAVES 1 TO 2 FEET. .SUNDAY NIGHT...NORTH WINDS 10 TO 15 KNOTS...BECOMING VARIABLE 10 KNOTS OR LESS LATE. MOSTLY CLEAR. WAVES 1 TO 2 FEET. .MONDAY...VARIABLE WINDS 10 KNOTS OR LESS...BECOMING EAST 5 TO 15 KNOTS...THEN BECOMING VARIABLE 10 KNOTS OR LESS. PARTLY CLOUDY. WAVES AROUND 1 FOOT. .TUESDAY...EAST WINDS 5 TO 15 KNOTS. PARTLY CLOUDY. WAVES 1 TO 2 FEET. .WEDNESDAY...SOUTHEAST WINDS 5 TO 15 KNOTS. PARTLY CLOUDY. WAVES 1 TO 2 FEET. THE WATER TEMPERATURE IS 67 DEGREES. $$ SC/KEC EXPERIMENTAL GRAPHICAL MARINE FORECASTS ARE AVAILABLE ONLINE AT WEATHER.GOV/DETROIT (ALL LOWER CASE)