215
FZUS63 KDTX 091345
GLFSC
LAKE ST CLAIR FORECAST
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
945 AM EDT WED SEP 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
LOW PRESSURE, 29.30 INCHES, WILL TRACK ACROSS NORTHERN
ONTARIO TODAY, DRIVING A SLOW MOVING COLD FRONT ACROSS THE GREAT
LAKES REGION. THIS SYSTEM WILL PROVIDE SHOWERS AND FEW
THUNDERSTORMS TO THE LAKES. HIGH PRESSURE WILL EXPAND INTO THE
REGION FROM THE WEST THURSDAY INTO FRIDAY.
LCZ460-092145-
LAKE ST CLAIR-
945 AM EDT WED SEP 9 2026
REST OF TODAY
SOUTHWEST WINDS 10 TO 15 KNOTS. MOSTLY CLOUDY. A
CHANCE OF LIGHT SHOWERS LATE IN THE MORNING...THEN LIGHT SHOWERS
LIKELY IN THE AFTERNOON. WAVES 2 FEET OR LESS.
TONIGHT
WEST WINDS 10 TO 15 KNOTS DIMINISHING TO 5 TO 10 KNOTS
EARLY IN THE MORNING. PARTLY CLOUDY. A CHANCE OF SHOWERS AND
THUNDERSTORMS EARLY IN THE EVENING. WAVES 2 FEET OR LESS.
THURSDAY
NORTHWEST WINDS 5 TO 10 KNOTS. PARTLY SUNNY. WAVES 2
FEET OR LESS.
THURSDAY NIGHT
NORTH WINDS 5 TO 10 KNOTS. MOSTLY CLEAR. WAVES 2
FEET OR LESS.
FRIDAY
LIGHT AND VARIABLE WINDS BECOMING SOUTHEAST 5 TO 10 KNOTS
IN THE AFTERNOON AND EVENING. SUNNY BECOMING MOSTLY CLEAR. WAVES 2
FEET OR LESS.
SATURDAY
SOUTH WINDS 10 TO 15 KNOTS. MOSTLY CLEAR. WAVES 2 FEET
OR LESS.
SUNDAY
EAST WINDS 5 TO 10 KNOTS. PARTLY CLOUDY. WAVES 2 FEET OR
LESS.
AM
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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