775
FZUS63 KDTX 171459
GLFSC
LAKE ST CLAIR FORECAST
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
ISSUED BY NATIONAL WEATHER SERVICE GRAND RAPIDS MI
959 AM EST WED DEC 17 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
A COLD FRONT IS TRACKING THROUGH THE CENTRAL GREAT
LAKES THIS MORNING. ANY GALES THIS MORNING ARE EXPECTED OVER THE
NORTHERN HALF OF LAKE HURON WHERE GALE WARNINGS ARE IN EFFECT. AN
EVEN STRONGER SYSTEM WILL AFFECT THE REGION THURSDAY AND FRIDAY
BRINGING RAIN, SNOW, AND STRONG WINDS. GALES WILL BE POSSIBLE OVER
LAKE ST CLAIR LATE THURSDAY AFTERNOON INTO THURSDAY NIGHT AND
AGAIN DURING THE DAY FRIDAY.
LCZ460-172300-
LAKE ST CLAIR-
959 AM EST WED DEC 17 2025
..SMALL CRAFT ADVISORY IN EFFECT UNTIL NOON EST TODAY
REST OF TODAY
WEST WINDS 10 TO 15 KNOTS DIMINISHING TO 5 TO 10
KNOTS LATE IN THE AFTERNOON. MOSTLY CLOUDY. WAVES NEARLY CALM.
TONIGHT
SOUTH WINDS 5 TO 10 KNOTS INCREASING TO 15 TO 20 KNOTS.
PARTLY CLOUDY THIS EVENING BECOMING MOSTLY CLOUDY. WAVES NEARLY
CALM.
THURSDAY
SOUTH WINDS 20 TO 25 KNOTS WITH GUSTS TO 30 KNOTS
INCREASING TO 30 KNOTS WITH GUSTS TO 35 KNOT GALES EARLY IN THE
AFTERNOON. A CHANCE OF LIGHT RAIN EARLY IN THE MORNING...THEN LIGHT
RAIN IN THE LATE MORNING AND AFTERNOON. WAVES NEARLY CALM. A GALE
WARNING MAY BE NEEDED.
THURSDAY NIGHT
SOUTH AT 35 KNOT GALES BECOMING SOUTHWEST TO 30
KNOTS IN THE LATE EVENING AND OVERNIGHT. LIGHT SHOWERS UNTIL EARLY
MORNING. SCATTERED LIGHT SNOW SHOWERS IN THE LATE EVENING AND
OVERNIGHT. SCATTERED LIGHT SHOWERS AFTER MIDNIGHT. WAVES NEARLY
CALM.
FRIDAY
WEST AT 35 KNOT GALES DIMINISHING TO 20 TO 25 KNOTS.
MOSTLY CLOUDY. SCATTERED LIGHT SNOW SHOWERS. WAVES NEARLY CALM.
SATURDAY
SOUTHWEST WINDS 20 TO 25 KNOTS. MOSTLY CLOUDY. WAVES
NEARLY CALM.
SUNDAY
NORTHWEST WINDS 15 TO 20 KNOTS. PARTLY CLOUDY. WAVES
NEARLY CALM.
WAVES OMITTED DUE TO ICE COVERAGE.
RAH
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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