435
FZUS63 KDTX 091340
GLFSC
LAKE ST CLAIR FORECAST
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
940 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 TODAY, ALLOWING WINDS TO BECOME SOUTHERLY ONCE
AGAIN. THIS 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.
LCZ460-092145-
LAKE ST CLAIR-
940 AM EDT SUN AUG 9 2026
REST OF TODAY
LIGHT AND VARIABLE WINDS BECOMING SOUTH 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.
SC
EXPERIMENTAL MODERNIZED OPEN LAKE FORECAST IS AVAILABLE ONLINE AT
WEATHER.GOV/DTX/GLFTABLESC
GRAPHICAL MARINE FORECASTS ARE AVAILABLE AT WEATHER.GOV/GREATLAKES
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page