792
FZUS63 KDTX 130137
GLFSC
LAKE ST CLAIR FORECAST
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
937 PM EDT THU MAR 12 2026
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 STRONG LOW PRESSURE SYSTEM, 29.10 INCHES, MOVES OVER
NORTHERN LOWER MICHIGAN AND CENTRAL LAKE HURON FRIDAY MORNING.
THIS WILL BRING WIDESPREAD GALES TO THE GREAT LAKES. A GALE
WARNING IS IN EFFECT. THE LOW QUICKLY MOVES OUT FRIDAY NIGHT WITH
HIGH PRESSURE, 30.20 INCHES, BRIEFLY BUILDING BACK IN ON SATURDAY.
A SECOND STRONG LOW PRESSURE SYSTEM, 28.80 INCHES, MOVES ACROSS
SOUTHERN MICHIGAN AND LAKE HURON LATE SUNDAY INTO MONDAY. THIS
BRINGS ADDITIONAL POTENTIAL FOR GUST TO GALES.
LCZ460-130945-
LAKE ST CLAIR-
937 PM EDT THU MAR 12 2026
...GALE WARNING IN EFFECT FROM 4 AM EDT FRIDAY THROUGH LATE
FRIDAY NIGHT...
REST OF TONIGHT
SOUTH WINDS 5 TO 10 KNOTS BECOMING SOUTHEAST 15
TO 20 KNOTS WITH GUSTS TO 30 KNOTS EARLY IN THE MORNING. PARTLY
CLOUDY BY MIDNIGHT...THEN MOSTLY CLOUDY WITH A CHANCE OF LIGHT SNOW
EARLY IN THE MORNING. WAVES 2 FEET OR LESS.
FRIDAY
SOUTH WINDS TO 30 KNOTS BECOMING SOUTHWEST 20 TO 25 KNOTS
EARLY IN THE AFTERNOON...THEN BECOMING WEST TO 30 KNOTS LATE IN THE
AFTERNOON. GUSTS TO 45 KNOT GALES. LIGHT RAIN AND SNOW IN THE
MORNING...THEN A CHANCE OF LIGHT RAIN AND SNOW IN THE AFTERNOON.
WAVES 2 TO 4 FEET.
FRIDAY NIGHT
WEST WINDS TO 30 KNOTS WITH GUSTS TO 45 KNOT GALES
BECOMING NORTHWEST 20 TO 25 KNOTS WITH GUSTS TO 30 KNOTS AFTER
MIDNIGHT. PARTLY CLOUDY. A CHANCE OF LIGHT SNOW EARLY IN THE
EVENING. WAVES 2 TO 4 FEET.
SATURDAY
NORTHWEST WINDS 15 TO 20 KNOTS DIMINISHING TO 5 TO 10
KNOTS IN THE LATE MORNING AND EARLY AFTERNOON...THEN BACKING TO THE
SOUTHWEST EARLY IN THE AFTERNOON. PARTLY SUNNY. WAVES 2 FEET OR
LESS.
SATURDAY NIGHT
SOUTHEAST WINDS 5 TO 10 KNOTS BECOMING EAST 15 TO
20 KNOTS. MOSTLY CLOUDY. A CHANCE OF LIGHT SNOW ...THEN SNOW LIKELY
AFTER MIDNIGHT. WAVES 2 FEET OR LESS.
SUNDAY
EAST WINDS 15 TO 20 KNOTS BECOMING SOUTHEAST 20 TO 25
KNOTS WITH GUSTS TO 30 KNOTS IN THE AFTERNOON...THEN BECOMING SOUTH
TO 30 KNOTS WITH GUSTS TO 35 KNOT GALES IN THE EVENING. CLOUDY.
LIGHT RAIN AND SNOW LIKELY. WAVES 2 TO 4 FEET BUILDING TO 3 TO 5
FEET IN THE EVENING. WAVES OCCASIONALLY AROUND 7 FEET. A GALE
WARNING MAY BE NEEDED.
MONDAY
WEST AT 35 KNOT GALES WITH GUSTS TO 40 KNOT GALES. LIGHT
RAIN WITH LIGHT SNOW LIKELY. WAVES 4 TO 6 FEET. WAVES OCCASIONALLY
AROUND 8 FEET.
TUESDAY
WEST WINDS TO 30 KNOTS WITH GUSTS TO 35 KNOT GALES.
MOSTLY CLOUDY. WAVES 2 TO 4 FEET.
SC
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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