• CLASSIC IWINDSURF
    Classic myiWindsurfClassic Wind & Weather maps and graphs
Hello Guest
 • 

Classic iWindsurf
kiter? see iKitesurf.com
Grab the iWindsurf Mobile App & Sign On to the New iWindsurf Website
Hi guest · Get your free membership now · Log In ·
MI - south

Real-Time Data
 > Dynamic Map
 > Wind Obs Summary

Computer Forecasts
 > Model Tables

More Maps

Other Resources
Wind Graphs
Meteograms

Watches/Warnings
>None Active

New iWindsurf: Select your region for wind observations & forecasts:
North America | Europe | South America | Australia & Oceania | Asia | Africa

fzus61 kcle 210827
glfle 
expires:202511211515;;241018

open lake forecast for lake erie
national weather service cleveland oh
327 am est fri nov 21 2025

for waters beyond five nautical miles of shore on lake erie

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 will move east across lake erie this morning as high
pressure 30.20 inches building over the great lakes in its wake
late tonight into saturday. a warm front lift across the lake 
late saturday into sunday, followed by another cold front on late 
sunday into early monday.


lez162>164-211515-
detroit river lt. to maumee bay oh to reno beach oh beyond 5nm
offshoreline to us-canadian border-
reno beach to the islands oh beyond 5nm off shoreline to us-
canadian border-
the islands to vermilion oh beyond 5 nm off shoreline to us-
canadian border-
327 am est fri nov 21 2025

.today...southwest winds 10 knots or less becoming west. waves
1 foot or less. 
.tonight...northwest winds 10 knots or less becoming north. a
slight chance of rain early. waves 2 feet or less. 
.saturday...north winds 10 knots or less becoming west. waves
2 feet or less. 
.saturday night...southwest winds 10 knots or less increasing to
10 to 15 knots. waves 2 feet or less. 
.sunday...west winds 15 to 20 knots diminishing to 5 to 15 knots.
waves 1 to 3 feet subsiding to 1 foot or less. 
.monday...south winds 5 to 15 knots becoming southeast. rain
likely monday night. waves 2 feet or less. 
.tuesday...south winds 15 to 20 knots becoming southwest. rain.
waves 1 to 3 feet. 

$$
fzus63 kdtx 210859
glfsc 
expires:202511211700;;242157

lake st clair forecast
national weather service detroit/pontiac mi
359 am est fri nov 21 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...a weak cold front, 29.90 inches, tracks across the
region early this morning, supporting moderate west-northwest 
winds through the day. high pressure, 30.10 inches, then slides 
across the central great lakes to close out the week.


lcz460-211700-
lake st clair-
359 am est fri nov 21 2025

.today...west winds 5 to 10 knots. mostly cloudy. patchy fog late in
the morning. waves 2 feet or less.
.tonight...northwest winds 5 to 10 knots becoming north 10 to 15
knots after midnight. mostly cloudy this evening becoming partly
cloudy. waves 2 feet or less.
.saturday...northwest winds 5 to 10 knots until late afternoon
becoming light and variable. mostly sunny. waves 2 feet or less.
.saturday night...southwest winds 5 to 10 knots increasing to 10 to
15 knots in the late evening and overnight. partly cloudy. waves 2
feet or less.
.sunday...west winds 10 to 15 knots diminishing to 5 to 10 knots in
the evening. mostly clear. waves 2 feet or less.
.monday...southeast winds 10 to 15 knots. partly cloudy. waves 2
feet or less.
.tuesday...southwest winds 15 to 20 knots. light rain. waves 1 to 3
feet.

$$
fzus63 kdtx 210859
glflh 
expires:202511211700;;242154

open lake forecast for lake huron
national weather service detroit/pontiac mi
359 am est fri nov 21 2025

for waters beyond five nautical miles off shore on lake huron

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, 29.90 inches, tracks across the
region early this morning, supporting moderate west-northwest 
winds through the day. high pressure, 30.10 inches, then slides 
across the central great lakes to close out the week.


lhz463-464-211700-
lake huron from harbor beach to port sanilac beyond 5nm off shore-
lake huron from port sanilac to port huron beyond 5nm off shore-
359 am est fri nov 21 2025

.today...west winds 10 to 15 knots. waves 1 to 3 feet. 
.tonight...northwest winds 10 to 15 knots. waves 1 to 3 feet
building to 3 to 5 feet in the late evening and overnight. 
.saturday...northwest winds 10 to 15 knots decreasing to 5 to
10 knots in the late morning and afternoon. waves 2 to 4 feet
subsiding to 1 to 3 feet early in the afternoon. 
.saturday night...west winds 5 to 10 knots becoming southwest
15 to 20 knots. waves 1 to 3 feet building to 2 to 4 feet after
midnight. 
.sunday...west winds 15 to 20 knots decreasing to 5 to 10 knots.
waves 2 to 4 feet subsiding to 1 to 3 feet late in the afternoon.
.monday...west winds 5 to 10 knots becoming south 10 to 15 knots.
rain likely in the late evening and early morning. waves 1 to
3 feet building to 2 to 4 feet in the late evening and early
morning. 
.tuesday...southeast winds 15 to 20 knots becoming south 10 to
15 knots until early morning. rain until afternoon...then rain
likely until early morning. waves 3 to 5 feet. 


$$
fzus63 kmkx 210839
glflm 
expires:202511211615;;241451

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
239 am cst fri nov 21 2025

for waters beyond five nautical miles of shore on lake michigan.

waves are provided as a range of significant wave heights, which
is the average of the highest 1/3 of the wave, along with the
average height of the highest 10% of the waves which will
occasionally be encountered.

.synopsis...

northwesterly winds continue through this evening as low pressure
of 29.5 inches lingers in the hudson bay and high pressure of 
30.1 inches builds into the northern plains. high pressure builds 
overhead overnight tonight into saturday, bringing light and 
variable winds. saturday afternoon, expect breezy southwest winds 
to develop as weak low pressure of 29.7 inches progresses through 
lake superior. winds shift northwesterly saturday night into 
sunday as this low pressure system exits to the east and a cold 
front pushes northwest to southeast across the lake. high pressure
returns sunday night into monday for an additional period of 
light and variable winds. 


lmz261-362-364-366-563-565-567-868-211615-
lake michigan from seul choix point to rock island passage 5 nm
offshore to mid lake-
lake michigan south of a line from seul choix point to the
mackinac bridge and north of a line from charlevoix mi to south
fox island 5 nm offshore-
lake michigan from charlevoix to point betsie mi 5 nm offshore to
mid lake-
lake michigan from point betsie to manistee mi 5 nm offshore to
mid lake-
lake michigan from rock island passage to sturgeon bay wi-
lake michigan from sturgeon bay to two rivers wi 5 nm offshore to
mid lake-
lake michigan from two rivers to sheboygan wi 5 nm offshore to
mid lake-
lake michigan from pentwater to manistee mi 5 nm offshore to mid
lake-
239 am cst fri nov 21 2025

sheboygan wi to pentwater mi north...

.today...northwest winds 10 to 20 kt. waves 2 to 4 ft. 
.tonight...northwest winds 10 to 20 kt diminishing to 5 to 10 kt.
waves 1 to 3 ft subsiding to 1 to 2 ft. 
.saturday...west winds 5 to 10 kt becoming southwest 10 to 15 kt
late in the morning, then increasing to 10 to 20 kt early in the
afternoon increasing to 15 to 25 kt late. waves 1 to 2 ft
building to 1 to 3 ft. 
.saturday night...southwest winds 15 to 25 kt becoming northwest.
waves 4 to 6 ft occasionally to 8 ft. 
.sunday...northwest winds 10 to 20 kt becoming west. waves 3 to
5 ft subsiding to 1 to 3 ft. 
.sunday night...southwest winds 10 to 15 kt diminishing to 5 to
10 kt. waves 1 to 2 ft. 
.monday...south winds 10 to 15 kt increasing to 10 to 20 kt.
waves 1 to 3 ft building to 2 to 4 ft. 
.tuesday...south winds 10 to 20 kt becoming southwest. rain
likely. waves 3 to 5 ft.  

$$
fzus63 kmkx 210839
glflm 
expires:202511211615;;241452

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
239 am cst fri nov 21 2025

for waters beyond five nautical miles of shore on lake michigan.

waves are provided as a range of significant wave heights, which
is the average of the highest 1/3 of the wave, along with the
average height of the highest 10% of the waves which will
occasionally be encountered.

.synopsis...

northwesterly winds continue through this evening as low pressure
of 29.5 inches lingers in the hudson bay and high pressure of 
30.1 inches builds into the northern plains. high pressure builds 
overhead overnight tonight into saturday, bringing light and 
variable winds. saturday afternoon, expect breezy southwest winds 
to develop as weak low pressure of 29.7 inches progresses through 
lake superior. winds shift northwesterly saturday night into 
sunday as this low pressure system exits to the east and a cold 
front pushes northwest to southeast across the lake. high pressure
returns sunday night into monday for an additional period of 
light and variable winds. 


lmz080-669-671-673-675-777-779-870-872-874-876-878-211615-
lake michigan from michigan city in to st. joseph mi 5 nm
offshore to mid lake-
lake michigan from sheboygan to port washington wi 5 nm offshore
to mid lake-
lake michigan from port washington to north point light wi 5 nm
offshore to mid lake-
lake michigan from north point light to wind point wi 5 nm
offshore to mid lake-
lake michigan from wind point wi to winthrop harbor il 5 nm
offshore to mid lake-
lake michigan from winthrop harbor to wilmette harbor il 5 nm
offshore to mid lake-
lake michigan from wilmette harbor il to michigan city in 5 nm
offshore to mid lake-
lake michigan from whitehall to pentwater mi 5 nm offshore to mid
lake-
lake michigan from grand haven to whitehall mi 5 nm offshore to
mid lake-
lake michigan from holland to grand haven mi 5 nm offshore to mid
lake-
lake michigan from south haven to holland mi 5 nm offshore to mid
lake-
lake michigan from st. joseph to south haven mi 5 nm offshore to
mid lake-
239 am cst fri nov 21 2025

sheboygan wi to pentwater mi south...

.today...northwest winds 10 to 20 kt diminishing to 10 to 15 kt.
waves 2 to 4 ft. 
.tonight...north winds 10 to 15 kt diminishing to 5 to 10 kt.
waves 2 to 4 ft. 
.saturday...northwest winds 5 to 10 kt backing to southwest 10 to
15 kt late in the morning, then increasing to 10 to 20 kt early
in the afternoon becoming southwest 10 to 20 kt late. waves 1 to
3 ft. 
.saturday night...southwest winds 15 to 25 kt becoming west 10 to
20 kt. waves 4 to 7 ft occasionally to 9 ft. 
.sunday...northwest winds 10 to 20 kt becoming west 10 to 15 kt.
waves 4 to 6 ft occasionally to 8 ft subsiding to 3 to 5 ft. 
.sunday night...southwest winds 5 to 10 kt becoming south 10 to
15 kt. waves 1 to 3 ft. 
.monday...south winds 10 to 20 kt. chance of rain. waves 2 to
4 ft. 
.tuesday...south winds 10 to 20 kt becoming southwest. rain
likely. waves 4 to 6 ft occasionally to 8 ft.  

$$
© Copyright 2025 WeatherFlow, Inc · Contact Us ·