039
FZUS63 KDTX 122000
GLFSC
LAKE ST CLAIR FORECAST
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
400 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 BRIEF RIDGE OF HIGH PRESSURE, 30.10 INCHES, HOLDS
OVER THE GREAT LAKES THROUGH THE EVENING. A STRONG LOW PRESSURE
SYSTEM, 29.10 INCHES, THEN ENTERS NORTHERN LOWER MICHIGAN AND
CENTRAL LAKE HURON TOMORROW 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 BUILDING BACK
IN ON SATURDAY.
LCZ460-130400-
LAKE ST CLAIR-
400 PM EDT THU MAR 12 2026
...GALE WARNING IN EFFECT FROM 4 AM EDT FRIDAY THROUGH LATE
FRIDAY NIGHT...
TONIGHT
WEST WINDS 10 TO 15 KNOTS BECOMING SOUTHWEST 5 TO 10
KNOTS BY MIDNIGHT...THEN BECOMING SOUTH 15 TO 20 KNOTS WITH GUSTS TO
30 KNOTS EARLY IN THE MORNING. PARTLY CLOUDY ...THEN MOSTLY CLOUDY
WITH A CHANCE OF LIGHT SNOW EARLY IN THE MORNING. WAVES 2 FEET OR
LESS.
FRIDAY
SOUTH WINDS TO 30 KNOTS WITH STORM FORCE STORM FORCE GUSTS
TO 50 KNOTS BECOMING SOUTHWEST 20 TO 25 KNOTS WITH GUSTS TO 45 KNOT
GALES EARLY IN THE AFTERNOON...THEN BECOMING WEST TO 30 KNOTS WITH
GUSTS TO 40 KNOT GALES LATE IN THE AFTERNOON. LIGHT RAIN AND SNOW IN
THE MORNING...THEN A CHANCE OF LIGHT RAIN AND SNOW IN THE AFTERNOON.
WAVES 3 TO 5 FEET. WAVES OCCASIONALLY AROUND 7 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 SUBSIDING TO 1 TO 3 FEET AFTER MIDNIGHT.
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. 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 3 TO 5 FEET. WAVES OCCASIONALLY
AROUND 6 FEET.
TUESDAY
WEST WINDS TO 30 KNOTS WITH GUSTS TO 35 KNOT GALES.
MOSTLY CLOUDY. WAVES 2 TO 4 FEET.
AM
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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