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Current Regional Radar

Current Hazards

 

 

Current Forecast


098
FZUS63 KDTX 051950
GLFSC

Lake St Clair Forecast
National Weather Service Detroit/Pontiac MI
350 PM EDT Wed Aug 5 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 cold front, 30.00 inches, will slowly move across
Lake Huron this evening and into Lake Erie by tomorrow morning.
This front will produce showers and a low chance for
thunderstorms. The front will diminish across the eastern Great
Lakes Thursday, leaving light winds across the region Friday.

LCZ460-060400-
Lake St Clair-
350 PM EDT Wed Aug 5 2026

.TONIGHT...South winds 5 to 10 knots veering to the west early in
the morning. Mostly clear. Waves 2 feet or less.
.THURSDAY...West winds 5 to 10 knots early in the morning becoming
light and variable...then becoming south 5 to 10 knots in the
afternoon. Partly sunny. A chance of light showers in the late
morning and afternoon. A chance of thunderstorms early in the
afternoon. Waves 2 feet or less.
.THURSDAY NIGHT...South winds 5 to 10 knots becoming light and
variable. Partly cloudy early in the evening becoming mostly cloudy.
A chance of showers and thunderstorms early in the evening. A chance
of light showers after midnight. Waves 2 feet or less.
.FRIDAY...Light and variable winds becoming south 5 to 10 knots in
the late morning and afternoon. Partly sunny. A chance of light
showers early in the afternoon. Waves 2 feet or less.
.FRIDAY NIGHT...Southwest winds 5 to 10 knots. Partly cloudy. A
chance of light showers. A chance of thunderstorms by midnight.
Waves 2 feet or less.
.SATURDAY...Southwest winds 5 to 10 knots increasing to 10 to 15
knots in the afternoon...then becoming west 5 to 10 knots in the
evening. Partly sunny with a chance of light showers in the
morning...then mostly clear with a chance of showers and
thunderstorms in the afternoon and evening. Waves 2 feet or less.
.SUNDAY...Southwest winds 10 to 15 knots. Mostly clear. A chance of
showers and thunderstorms. Waves 2 feet or less.
.MONDAY...Southwest winds 10 to 15 knots. Partly cloudy. Showers
likely and a chance of thunderstorms. Waves 2 feet or less.

$$

AM

Experimental modernized open lake forecast is available online at
weather.gov/dtx/glftablesc

Graphical marine forecasts are available at weather.gov/greatlakes


Forecast Time Series for Lake St Clair

Wind Speed Possibilities

 

Wind Direction and Speed Possibilities

Forecast hourly 18 hours - 3 hourly to 36 hours

 

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f36

 

Wind Gust Possibilities

 

Gust Direction and Speed Possibilities

Forecast hourly 18 hours - 3 hourly to 36 hours

 

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f02

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(click to enlarge)

Wave Heights

Now-15 hours

Significant

Occasional

(top 10%)

Wave Heights

18-60 hours

Significant

Occasional

(top 10%)

Wave Height Frequency Distribution

Significant Wave Probabilities

Water Level

Lake St. Clair Currents

 

 

General Forecast Time Series Days 3-7

(click to enlarge)

 

Prototype: Under Development: Not to be relied on for Operational Decision Making.