791
FZUS63 KDTX 172047
GLFSC
LAKE ST CLAIR FORECAST
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
347 PM 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
LOW PRESSURE, 29.10 INCHES, TRACKS FROM THE DAKOTAS TO
LAKE SUPERIOR THURSDAY. SOUTHERLY WINDS INCREASE THURSDAY BEFORE
SHIFTING TO THE NORTHWEST AS A COLD FRONT COMES THROUGH THURSDAY
NIGHT. GALE WARNINGS ARE IN EFFECT FOR LAKE HURON THROUGH FRIDAY
NIGHT WITH POTENTIAL FOR SNOW SQUALLS FRIDAY.
LCZ460-180500-
LAKE ST CLAIR-
347 PM EST WED DEC 17 2025
...SMALL CRAFT ADVISORY IN EFFECT FROM THURSDAY MORNING THROUGH
FRIDAY EVENING...
TONIGHT
SOUTH WINDS 5 TO 10 KNOTS INCREASING TO 10 TO 15 KNOTS IN
THE LATE EVENING AND OVERNIGHT. PARTLY CLOUDY THIS EVENING BECOMING
MOSTLY CLOUDY.
THURSDAY
SOUTH WINDS 15 TO 20 KNOTS INCREASING TO 20 TO 25 KNOTS
WITH GUSTS TO 30 KNOTS IN THE AFTERNOON. A CHANCE OF LIGHT RAIN IN
THE MORNING...THEN RAIN IN THE AFTERNOON.
THURSDAY NIGHT
SOUTH WINDS 20 TO 25 KNOTS WITH GUSTS TO 30 KNOTS
BECOMING SOUTHWEST 15 TO 20 KNOTS IN THE LATE EVENING AND EARLY
MORNING...THEN BECOMING WEST 20 TO 25 KNOTS WITH GUSTS TO 30 KNOTS
AFTER MIDNIGHT. LIGHT RAIN UNTIL EARLY MORNING. A CHANCE OF LIGHT
SNOW IN THE LATE EVENING AND OVERNIGHT.
FRIDAY
WEST WINDS 20 TO 25 KNOTS WITH GUSTS TO 30 KNOTS. MOSTLY
CLOUDY. A CHANCE OF LIGHT SNOW UNTIL LATE AFTERNOON.
FRIDAY NIGHT
WEST WINDS 15 TO 20 KNOTS DIMINISHING TO 10 TO 15
KNOTS IN THE LATE EVENING AND EARLY MORNING...THEN BECOMING
SOUTHWEST 15 TO 20 KNOTS AFTER MIDNIGHT. MOSTLY CLOUDY.
SATURDAY
SOUTH WINDS 15 TO 20 KNOTS VEERING TO THE SOUTHWEST IN
THE EVENING. MOSTLY CLOUDY.
SUNDAY
NORTHWEST WINDS 15 TO 20 KNOTS. PARTLY CLOUDY.
MONDAY
SOUTH WINDS 10 TO 15 KNOTS. PARTLY CLOUDY.
WAVES OMITTED DUE TO ICE COVERAGE.
MV
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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