National Weather Service United States Department of Commerce

Current Regional Radar

Current Hazards

 

 

Current Forecast


462
FZUS63 KDTX 160248
GLFSC

Lake St Clair Forecast
National Weather Service Detroit/Pontiac MI
948 PM EST Sat Nov 15 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, currently 29.30 inches, deepens as it
tracks east of Georgian Bay tonight. This draws a cold front
across the Great Lakes and ramps up northwest winds in excess of
30 knots with gusts to gales. Gale Warnings are in effect tonight
through Sunday night. High pressure, 30.20 inches, then begins to
build in starting Sunday night.

LCZ460-161100-
Lake St Clair-
948 PM EST Sat Nov 15 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH SUNDAY EVENING...

.REST OF TONIGHT...Northwest winds 15 to 20 knots with gusts
around 25 knots. Partly cloudy. Waves 1 to 3 feet.
.SUNDAY...Northwest winds 20 to 25 knots with gusts to 30 knots.
Mostly sunny. Waves 2 to 4 feet.
.SUNDAY NIGHT...Northwest winds 20 to 25 knots. Gusts to 30 knots
early in the evening. Mostly clear. Waves 2 to 4 feet subsiding to 1
to 3 feet after midnight.
.MONDAY...Northwest winds 15 to 20 knots diminishing to 10 to 15
knots early in the afternoon. Mostly sunny. Waves 1 to 3 feet.
.MONDAY NIGHT...Northwest winds 5 to 10 knots. Mostly clear until
early morning becoming mostly cloudy. Waves 2 feet or less.
.TUESDAY...West winds 5 to 10 knots backing to the southeast in the
afternoon...then backing to the northeast in the evening. Mostly
cloudy. A chance of light rain and snow...then a chance of light
rain in the evening. Waves 2 feet or less.
.WEDNESDAY...East winds 5 to 10 knots. Partly cloudy. Waves 2 feet
or less.
.THURSDAY...Southeast winds 10 to 15 knots. Partly cloudy. Light
rain likely. Waves 2 feet or less.

$$

BT

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 Detroit River

Wind Speed Possibilities

 

Wind 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

f17

f18

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

f17

f18

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

Wave Height Frequency Distribution

Significant Wave Probabilities

Water Level

Detroit River Currents

 

 

General Forecast Time Series Days 3-7

(click to enlarge)

 

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