National Weather Service United States Department of Commerce

Current Regional Radar

Current Hazards

 

 

Current Forecast


440
FZUS63 KDTX 160143
GLFSC

Lake St Clair Forecast
National Weather Service Detroit/Pontiac MI
943 PM EDT Wed Jul 15 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 weak cold front continues southward across the
south-central Great Lakes through tonight as Canadian wildfire
smoke fills in behind the boundary. Weak high pressure follows by
Thursday before the next low pressure system moves in for the late
week and early weekend time-frame.

LCZ460-160945-
Lake St Clair-
943 PM EDT Wed Jul 15 2026

...DENSE SMOKE ADVISORY IN EFFECT UNTIL 10 AM EDT THURSDAY...

.REST OF TONIGHT...North winds 10 to 15 knots diminishing to 5 to 10
knots early in the morning. Partly cloudy. Smoke. Waves 2 feet or
less.
.THURSDAY...North winds 5 to 10 knots. Mostly sunny. Smoke. Waves 2
feet or less.
.THURSDAY NIGHT...East winds 5 to 10 knots. Mostly clear. Smoke
early in the evening...then areas of smoke by midnight. Patchy smoke
after midnight. Waves 2 feet or less.
.FRIDAY...Light and variable winds becoming southeast 5 to 10 knots
in the late morning and afternoon. Sunny early in the morning
becoming partly sunny. Areas of smoke early in the morning. Waves 2
feet or less.
.FRIDAY NIGHT...South winds 10 to 15 knots. Partly cloudy. A chance
of showers and thunderstorms ...then a chance of showers after
midnight. Waves 2 feet or less.
.SATURDAY...Southwest winds 10 to 15 knots becoming northwest 15 to
20 knots in the evening. Partly sunny with a chance of showers and
thunderstorms in the morning...then showers and a chance of
thunderstorms in the afternoon and evening. Waves 1 to 3 feet.
.SUNDAY...East winds 15 to 20 knots. Mostly clear. 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.

$$

KGK

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

 

f01

f02

f03

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f12

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f15

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f24

f27

f30

f33

f36

 

Wind Gust Possibilities

 

Gust Direction and Speed Possibilities

Forecast hourly 18 hours - 3 hourly to 36 hours

 

f01

f02

f03

f04

f05

f06

f07

f08

f09

f10

f11

f12

f13

f14

f15

f16

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f24

f27

f30

f33

f36

 

(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.