750
FZUS63 KDTX 181943
GLFSC
LAKE ST CLAIR FORECAST
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
343 PM 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 SOUTHERLY GALES SUNDAY MORNING
ACROSS CENTRAL AND SOUTHERN LAKE HURON WITH HIGHER PROBABILITIES
FOR NORTHWESTERLY GALES OVER MOST OF LAKE HURON BY LATE SUNDAY
AFTERNOON. ELSEWHERE, NEAR GALE GUSTS CAN BE EXPECTED. HIGH
PRESSURE BUILDS IN BRIEFLY ON MONDAY BEFORE ANOTHER LOW PRESSURE
MOVES THROUGH THE REGION ON TUESDAY BRINGING ANOTHER CHANCE AT
GALES.
LCZ460-190345-
LAKE ST CLAIR-
343 PM EDT SAT OCT 18 2025
...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TONIGHT THROUGH LATE
SUNDAY NIGHT...
TONIGHT
SOUTH WINDS 10 TO 15 KNOTS INCREASING TO 20 TO 25 KNOTS
EARLY IN THE MORNING. PARTLY CLOUDY BECOMING MOSTLY CLOUDY IN THE
LATE EVENING AND EARLY MORNING. SCATTERED LIGHT SHOWERS IN THE
EVENING. SCATTERED THUNDERSTORMS. SHOWERS AFTER MIDNIGHT. WAVES 2
FEET OR LESS BUILDING TO 2 TO 4 FEET EARLY IN THE MORNING.
SUNDAY
SOUTH WINDS TO 30 KNOTS BECOMING SOUTHWEST 20 TO 25 KNOTS
EARLY IN THE AFTERNOON...THEN VEERING TO THE WEST LATE IN THE
AFTERNOON. LIGHT SHOWERS. WAVES 2 TO 4 FEET.
SUNDAY NIGHT
NORTHWEST WINDS TO 30 KNOTS DIMINISHING TO 20 TO 25
KNOTS AFTER MIDNIGHT. BECOMING PARTLY CLOUDY IN THE LATE EVENING AND
OVERNIGHT. LIGHT SHOWERS EARLY IN THE EVENING...THEN NUMEROUS LIGHT
SHOWERS 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.
SUNNY. WAVES 1 TO 3 FEET.
MONDAY NIGHT
SOUTHWEST WINDS 10 TO 15 KNOTS BECOMING SOUTH 20 TO
25 KNOTS. MOSTLY CLEAR. SCATTERED LIGHT SHOWERS AFTER MIDNIGHT.
WAVES 1 TO 3 FEET BUILDING TO 2 TO 4 FEET AFTER MIDNIGHT.
TUESDAY
SOUTHWEST WINDS 20 TO 25 KNOTS WITH GUSTS TO 30 KNOTS
BECOMING WEST TO 30 KNOTS IN THE EVENING. PARTLY SUNNY WITH NUMEROUS
LIGHT SHOWERS...THEN PARTLY CLOUDY WITH SCATTERED LIGHT SHOWERS IN
THE EVENING. WAVES 2 TO 4 FEET. A SMALL CRAFT ADVISORY MAY BE
NEEDED.
WEDNESDAY
WEST WINDS TO 30 KNOTS. MOSTLY CLOUDY WITH NUMEROUS
LIGHT SHOWERS. WAVES 2 TO 4 FEET.
THURSDAY
WEST WINDS 20 TO 25 KNOTS. PARTLY CLOUDY. SCATTERED
LIGHT SHOWERS. WAVES 1 TO 3 FEET.
KDK
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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