456
FZUS63 KDTX 180809
GLFSC
LAKE ST CLAIR FORECAST
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
409 AM EDT SAT OCT 18 2025
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, 29.20 INCHES, RAPIDLY DEVELOPS ALONG A
COLD FRONT OVER THE MID-MISSISSIPPI AND MOVES OVER LOWER MICHIGAN
SUNDAY, BRINGING THE CHANCE FOR A FEW SOUTHERLY GALES LATE SUNDAY
MORNING WITH HIGHER PROBABILITIES FOR NORTHWESTERLY GALES OVER
MOST OF LAKE HURON BY SUNDAY EVENING. A GALE WATCH IS IN EFFECT
LATE SUNDAY AFTERNOON THROUGH SUNDAY NIGHT.
LCZ460-181615-
LAKE ST CLAIR-
409 AM EDT SAT OCT 18 2025
TODAY
SOUTH WINDS 10 TO 15 KNOTS. PARTLY SUNNY BECOMING SUNNY
LATE IN THE MORNING BECOMING PARTLY SUNNY. LIGHT SHOWERS LIKELY LATE
IN THE AFTERNOON. WAVES 2 FEET OR LESS.
TONIGHT
SOUTH WINDS 10 TO 15 KNOTS INCREASING TO 15 TO 20 KNOTS
IN THE LATE EVENING AND EARLY MORNING...THEN DIMINISHING TO 10 TO 15
KNOTS EARLY IN THE MORNING. LIGHT SHOWERS AND A CHANCE OF
THUNDERSTORMS UNTIL EARLY MORNING...THEN SHOWERS EARLY IN THE
MORNING. WAVES 1 TO 3 FEET.
SUNDAY
SOUTH WINDS 20 TO 25 KNOTS WITH GUSTS TO 30 KNOTS VEERING
TO THE SOUTHWEST WITH GUSTS TO 30 KNOTS EARLY IN THE AFTERNOON.
SHOWERS. WAVES 2 TO 4 FEET. A SMALL CRAFT ADVISORY MAY BE NEEDED.
SUNDAY NIGHT
WEST WINDS 20 TO 25 KNOTS WITH GUSTS TO 30 KNOTS.
BECOMING MOSTLY CLEAR AFTER MIDNIGHT. LIGHT SHOWERS EARLY IN THE
EVENING...THEN LIGHT SHOWERS LIKELY IN THE LATE EVENING AND EARLY
MORNING. WAVES 2 TO 4 FEET.
MONDAY
WEST WINDS 20 TO 25 KNOTS DIMINISHING TO 10 TO 15 KNOTS IN
THE AFTERNOON...THEN BECOMING SOUTHWEST 15 TO 20 KNOTS IN THE
EVENING. SUNNY IN THE MORNING BECOMING MOSTLY CLEAR. WAVES 1 TO 3
FEET.
TUESDAY
WEST WINDS TO 30 KNOTS WITH GUSTS TO 35 KNOT GALES.
PARTLY CLOUDY. LIGHT SHOWERS LIKELY. WAVES 2 TO 4 FEET. A GALE
WARNING MAY BE NEEDED.
WEDNESDAY
WEST WINDS TO 30 KNOTS. PARTLY CLOUDY. LIGHT SHOWERS
LIKELY. WAVES 2 TO 4 FEET.
AA
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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