885
FZUS63 KDTX 160840
GLFSC
LAKE ST CLAIR FORECAST
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
340 AM EST TUE DEC 16 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
WEAK HIGH PRESSURE, 30.20 INCHES WILL MOVE ACROSS THE
REGION EARLY TUESDAY BEFORE A STRONG LOW, 29.10 INCHES, TRACKS
ACROSS NORTHERN ONTARIO INTO THE JAMES BAY LATE TUESDAY INTO
WEDNESDAY. GALE WARNINGS ARE IN EFFECT ACROSS THE CENTRAL AND
NORTHERN PORTIONS OF LAKE HURON DURING THIS TIMEFRAME. A EVEN
STRONGER SYSTEM WILL AFFECT THE REGION THURSDAY INTO FRIDAY.
LCZ460-161645-
LAKE ST CLAIR-
340 AM EST TUE DEC 16 2025
...SMALL CRAFT ADVISORY IN EFFECT FROM 3 PM EST THIS AFTERNOON
THROUGH WEDNESDAY MORNING...
TODAY
SOUTHWEST WINDS 5 TO 10 KNOTS BECOMING SOUTH 15 TO 20
KNOTS. PARTLY SUNNY. WAVES 2 FEET OR LESS.
TONIGHT
SOUTHWEST WINDS 20 TO 25 KNOTS DIMINISHING TO 15 TO 20
KNOTS EARLY IN THE MORNING. GUSTS TO 30 KNOTS. PARTLY CLOUDY THIS
EVENING BECOMING MOSTLY CLOUDY. WAVES 2 TO 4 FEET.
WEDNESDAY
SOUTHWEST WINDS 15 TO 20 KNOTS BECOMING WEST 10 TO 15
KNOTS IN THE LATE MORNING AND AFTERNOON. PARTLY SUNNY. WAVES 2 FEET
OR LESS.
WEDNESDAY NIGHT
SOUTH WINDS 10 TO 15 KNOTS INCREASING TO 30
KNOTS. PARTLY CLOUDY UNTIL EARLY MORNING BECOMING MOSTLY CLOUDY.
WAVES 1 TO 3 FEET.
THURSDAY
SOUTH WINDS TO 30 KNOTS BECOMING SOUTHWEST AT 35 KNOT
GALES IN THE EVENING. LIGHT RAIN LIKELY IN THE MORNING...THEN RAIN
IN THE AFTERNOON AND EVENING. LIGHT SNOW LIKELY IN THE EVENING.
WAVES 2 TO 4 FEET. A GALE WARNING MAY BE NEEDED.
FRIDAY
WEST AT 35 KNOT GALES. MOSTLY CLOUDY. WAVES 2 TO 4 FEET.
SATURDAY
SOUTHWEST WINDS 15 TO 20 KNOTS. MOSTLY CLOUDY. WAVES 1
TO 3 FEET.
CB
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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