Issued by NWS
000 FZUS63 KDTX 071336 GLFSC LAKE ST CLAIR FORECAST NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI 931 AM EDT TUE OCT 7 2008 .SYNOPSIS...A LARGE AREA OF HIGH PRESSURE...30.50 INCHES...OVER SOUTHERN ONTARIO WILL GRADUALLY BUILD TOWARD THE MID ATLANTIC THROUGH TONIGHT. A WEAK SURFACE LOW AND FRONTAL BOUNDARY... AVERAGING 29.80 INCHES...WILL MOVE THROUGH THE CENTRAL GREAT LAKES ON WEDNESDAY. HIGH PRESSURE WILL THEN BUILD BACK INTO THE GREAT LAKES REGION FOR THE END OF THE WEEK. LCZ460-072000- LAKE ST CLAIR- 931 AM EDT TUE OCT 7 2008 .THIS AFTERNOON...SOUTHEAST WINDS 10 TO 15 KNOTS. PARTLY SUNNY. WAVES 2 TO 3 FEET. .TONIGHT...SOUTHEAST WINDS 10 TO 15 KNOTS...DIMINISHING TO 5 TO 10 KNOTS. PARTLY CLOUDY DURING THE EVENING. CLOUDY OVERNIGHT. A CHANCE OF SHOWERS LATE. WAVES 2 TO 3 FEET. .WEDNESDAY...SOUTH WINDS 5 TO 10 KNOTS...INCREASING TO 10 TO 15 KNOTS. CLOUDY. SHOWERS WITH A SLIGHT CHANCE OF THUNDERSTORMS THROUGH LATE AFTERNOON...THEN A CHANCE OF SHOWERS. WAVES AROUND 1 FOOT...BUILDING TO 2 TO 3 FEET LATE. .WEDNESDAY NIGHT...SOUTHWEST WINDS 5 TO 15 KNOTS...TURNING TO WEST...THEN BECOMING VARIABLE 10 KNOTS OR LESS. CLOUDY. A CHANCE OF SHOWERS DURING THE EVENING. WAVES 1 TO 2 FEET. .THURSDAY...VARIABLE WINDS 10 KNOTS OR LESS...BECOMING SOUTHWEST 5 TO 15 KNOTS...THEN BECOMING VARIABLE 10 KNOTS OR LESS. PARTLY CLOUDY. WAVES AROUND 1 FOOT. .FRIDAY...VARIABLE WINDS 10 KNOTS OR LESS...BECOMING EAST 5 TO 15 KNOTS. PARTLY CLOUDY. WAVES AROUND 1 FOOT. .SATURDAY...VARIABLE WINDS 10 KNOTS OR LESS...BECOMING SOUTHEAST 5 TO 15 KNOTS. PARTLY CLOUDY. WAVES AROUND 1 FOOT. THE WATER TEMPERATURE IS 60 DEGREES. $$ HLO EXPERIMENTAL GRAPHICAL MARINE FORECASTS ARE AVAILABLE ONLINE AT WEATHER.GOV/DETROIT (ALL LOWER CASE)