657
FZUS63 KDTX 090647
GLFSC
LAKE ST CLAIR FORECAST
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
247 AM EDT SUN AUG 9 2026
WAVES ARE THE SIGNIFICANT WAVE HEIGHT - THE AVERAGE OF THE HIGHEST
1/3 OF THE WAVE SPECTRUM. OCCASIONAL WAVE HEIGHT IS THE AVERAGE OF
THE HIGHEST 1/10 OF THE WAVE SPECTRUM.
SYNOPSIS
HIGH PRESSURE AROUND 30.00 INCHES SLIDES EAST THROUGH
THE OHIO VALLEY TONIGHT THROUGH SUNDAY, ALLOWING WINDS TO BECOME
SOUTHERLY ONCE AGAIN FOR SUNDAY. SUNDAY EVENING THROUGH EARLY
NEXT WEEK AN ACTIVE PATTERN WITH A STALLED FRONTAL BOUNDARY
DRAPED OVER THE SOUTHERN GREAT LAKES REGION BRINGS BACK CHANCES
FOR ORGANIZED THUNDERSTORMS TO THE REGION. BY THE END OF NEXT
WEEK, HIGH PRESSURE AROUND 30.1 INCHES BUILDS SOUTH FROM CENTRAL
CANADA.
LCZ460-091500-
LAKE ST CLAIR-
247 AM EDT SUN AUG 9 2026
TODAY
NORTH WINDS 5 TO 10 KNOTS EARLY IN THE MORNING BECOMING
LIGHT AND VARIABLE...THEN BECOMING SOUTH 5 TO 10 KNOTS EARLY IN THE
AFTERNOON INCREASING TO 10 TO 15 KNOTS. MOSTLY SUNNY. WAVES 2 FEET
OR LESS.
TONIGHT
SOUTHWEST WINDS 10 TO 15 KNOTS. PARTLY CLOUDY EARLY IN
THE EVENING. A CHANCE OF SHOWERS LATE IN THE EVENING. SHOWERS AND A
CHANCE OF THUNDERSTORMS AFTER MIDNIGHT. WAVES 2 FEET OR LESS.
MONDAY
WEST WINDS 10 TO 15 KNOTS DIMINISHING TO 5 TO 10 KNOTS
EARLY IN THE AFTERNOON. MOSTLY CLOUDY UNTIL LATE AFTERNOON THEN
CLEARING. A CHANCE OF SHOWERS EARLY IN THE MORNING. WAVES 2 FEET OR
LESS.
MONDAY NIGHT
WEST WINDS 5 TO 10 KNOTS BACKING TO THE SOUTH AFTER
MIDNIGHT. PARTLY CLOUDY. A CHANCE OF LIGHT SHOWERS AFTER MIDNIGHT.
WAVES 2 FEET OR LESS.
TUESDAY
SOUTHWEST WINDS 5 TO 10 KNOTS BACKING TO THE NORTHEAST IN
THE EVENING. PARTLY SUNNY WITH A CHANCE OF LIGHT SHOWERS IN THE
MORNING...THEN PARTLY CLOUDY WITH A CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE AFTERNOON AND EVENING. WAVES 2 FEET OR LESS.
WEDNESDAY
NORTHWEST WINDS 5 TO 10 KNOTS. PARTLY CLOUDY. A CHANCE
OF SHOWERS AND THUNDERSTORMS. WAVES 2 FEET OR LESS.
THURSDAY
NORTHEAST WINDS 10 TO 15 KNOTS. PARTLY CLOUDY. WAVES 2
FEET OR LESS.
MR
EXPERIMENTAL MODERNIZED OPEN LAKE FORECAST IS AVAILABLE ONLINE AT
WEATHER.GOV/DTX/GLFTABLESC
GRAPHICAL MARINE FORECASTS ARE AVAILABLE AT WEATHER.GOV/GREATLAKES
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