• 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 151337
glfle 
expires:202610152015;;139800

open lake forecast for lake erie
national weather service cleveland oh
937 am edt thu oct 15 2026

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...
high pressure 30.10 inches builds off to the east of lake erie
through the afternoon. a warm front will lift north across the
lake late this evening as low pressure 29.60 inches moves into the
great lakes. a cold front will sweep across the lake early friday
with high pressure 30.50 inches building into the ohio valley this
weekend.


lez162-163-152015-
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-
937 am edt thu oct 15 2026

.this afternoon...east winds around 10 knots. waves 1 to 3 feet. 
.tonight...east winds 10 to 15 knots becoming southwest 15 to
20 knots. showers likely early, then showers with a slight chance
of thunderstorms. a chance of showers late. waves 1 to 2 feet
building to 2 to 4 feet. 
.friday...west winds to 30 knots becoming northwest. a chance of
showers in the morning, then showers likely in the afternoon.
waves 3 to 6 feet. 
.friday night...northwest winds to 30 knots becoming north.
showers likely in the evening. waves 3 to 6 feet building to 4 to
7 feet. waves occasionally around 9 feet. 
.saturday...north winds to 30 knots becoming southwest and
diminishing to 5 to 15 knots. waves 3 to 6 feet subsiding to 1 to
3 feet. 
.sunday...southwest winds 10 to 15 knots. waves 1 to 2 feet. 
.monday...southwest winds 5 to 15 knots becoming west. waves
2 feet or less. 

winds and waves higher in and near thunderstorms.

$$
fzus61 kcle 151337
glfle 
expires:202610152015;;139801

open lake forecast for lake erie
national weather service cleveland oh
937 am edt thu oct 15 2026

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...
high pressure 30.10 inches builds off to the east of lake erie
through the afternoon. a warm front will lift north across the
lake late this evening as low pressure 29.60 inches moves into the
great lakes. a cold front will sweep across the lake early friday
with high pressure 30.50 inches building into the ohio valley this
weekend.


lez164>166-152015-
the islands to vermilion oh beyond 5 nm off shoreline to us-
canadian border-
vermilion to avon point oh beyond 5 nm off shoreline to us-
canadian border-
avon point to willowick oh beyond 5 nm off shoreline to us-
canadian border-
937 am edt thu oct 15 2026

.this afternoon...east winds 10 to 15 knots. waves 2 to 4 feet
subsiding to 1 to 3 feet. 
.tonight...east winds 10 to 15 knots becoming southwest and
increasing to 15 to 25 knots. a chance of showers early, then
showers with a slight chance of thunderstorms from late evening
on. waves 1 to 3 feet building to 4 to 7 feet. waves occasionally
around 9 feet. 
.friday...southwest winds to 30 knots becoming northwest.
showers. waves 5 to 9 feet. waves occasionally around 11 feet. 
.friday night...northwest winds to 30 knots becoming north.
showers in the evening, then a chance of showers overnight. waves
6 to 10 feet. waves occasionally around 13 feet. 
.saturday...north winds to 30 knots becoming southwest and
diminishing to 15 to 20 knots. waves 6 to 9 feet subsiding to
1 to 3 feet. waves occasionally around 11 feet. 
.sunday...southwest winds 15 to 20 knots. waves 2 to 4 feet. 
.monday...southwest winds 5 to 15 knots becoming west. waves 1 to
3 feet subsiding to 1 foot or less. 

winds and waves higher in and near thunderstorms.

$$
fzus63 kdtx 151340
glfsc 
expires:202610152145;;139881

lake st clair forecast
national weather service detroit/pontiac mi
940 am edt thu oct 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...high pressure, 30.30 inches, passes across the
northern great lakes this morning. low pressure is forecast to
strengthen to 29.60 inches as it tracks across the central great
lakes thursday night and early friday. a strong cold front in its
wake brings likely northerly gales late friday.


lcz460-152145-
lake st clair-
940 am edt thu oct 15 2026

...small craft advisory in effect from this evening through
saturday morning...

.rest of today...east winds 10 to 15 knots. mostly cloudy. waves 2
feet or less.
.tonight...east winds 10 to 15 knots becoming southeast 15 to 20
knots late in the evening...then becoming south 20 to 25 knots after
midnight veering to the southwest with gusts to 30 knots early in
the morning. cloudy. rain likely. a chance of light rain early in
the morning. waves 1 to 3 feet building to 2 to 4 feet after
midnight.
.friday...west winds 20 to 25 knots becoming northwest 15 to 20
knots in the late morning and afternoon. mostly cloudy. a chance of
light rain early in the morning. a chance of light rain early in the
afternoon. waves 2 to 4 feet subsiding to 1 to 3 feet in the late
morning and afternoon.
.friday night...north winds 20 to 25 knots increasing to 30 knots in
the late evening and overnight. mostly cloudy early in the evening
becoming partly cloudy. a chance of light rain early in the evening.
waves 2 to 4 feet.
.saturday...north winds 20 to 25 knots becoming northwest 10 to 15
knots in the afternoon...then backing to the west in the evening.
clear. waves 2 to 4 feet subsiding to 2 feet or less in the
afternoon and evening.
.sunday...southwest winds 10 to 15 knots. clear. waves 1 to 3 feet.
.monday...southwest winds 10 to 15 knots. mostly clear. waves 2 feet
or less.

$$
fzus63 kdtx 151339
glflh 
expires:202610152145;;139876

open lake forecast for lake huron
national weather service detroit/pontiac mi
939 am edt thu oct 15 2026

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...high pressure, 30.30 inches, passes across the
northern great lakes this morning. low pressure is forecast to
strengthen to 29.60 inches as it tracks across the central great
lakes thursday night and early friday. a strong cold front in its
wake brings likely northerly gales late friday.


lhz363-462>464-152145-
lake huron from sturgeon point to alabaster mi beyond 5nm off
shore-
lake huron from port austin to harbor beach beyond 5nm off shore-
lake huron from harbor beach to port sanilac beyond 5nm off shore-
lake huron from port sanilac to port huron beyond 5nm off shore-
939 am edt thu oct 15 2026

...gale warning in effect from friday afternoon through late
friday night...

.rest of today...east winds 10 to 15 knots decreasing to 5 to
10 knots late in the afternoon. waves 1 to 3 feet. 
.tonight...east winds 10 to 15 knots becoming southeast 15 to
20 knots by midnight...then becoming east 10 to 15 knots early in
the morning. rain. waves 1 to 3 feet building to 3 to 5 feet in
the late evening and overnight. 
.friday...west winds 15 to 20 knots increasing to 20 to 25 knots
with gusts to around 30 knots in the late morning and early
afternoon...then becoming north to 30 knots with gusts to 35 knot
gales early in the afternoon. a chance of rain. waves 3 to 5 feet
building to 10 to 14 feet. waves occasionally around 18 feet. 
.friday night...north winds to 30 knots decreasing to 20 to
25 knots after midnight. gusts to 35 knot gales. a chance of
rain. waves 12 to 16 feet. waves occasionally around 20 feet. 
.saturday...north winds 15 to 20 knots becoming northwest 10 to
15 knots late in the morning...then becoming southwest 15 to
20 knots late in the afternoon. waves 8 to 12 feet subsiding to
4 to 6 feet. waves occasionally around 15 feet. 
.sunday...southwest winds 20 to 25 knots with gusts to 35 knot
gales. waves 6 to 9 feet. waves occasionally around 12 feet. 
.monday...southwest winds 15 to 20 knots decreasing to 5 to
10 knots. waves 5 to 7 feet subsiding to 1 to 3 feet. waves
occasionally around 10 feet. 


$$
fzus63 kmkx 151348
glflm 
expires:202610152130;;140082

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
848 am cdt thu oct 15 2026

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...

two areas of low pressure are progged to merge over the great 
lakes region into a single low pressure later today into tonight 
and deepen to around 29.4 inches as it shifts into the eastern 
great lakes through friday. expect a northerly wind shift to ramp
up and increase to gales and nearing storm force at times friday 
on the backside of the departing low pressure while a strong high 
pressure around 30.7 inches builds to the west. a gale warning
remains in effect for all of the open waters of lake michigan 
friday morning into friday night. 

widespread rain is expected this afternoon into tonight, with a 
few thunderstorms possible over the southern open waters. lake 
effect showers & thunderstorms may linger into friday along the 
back side of departing low pressure. a few waterspouts are 
possible in the friday showers/thunderstorms, particularly over 
the southern half of lake michigan. 

as the high sinks toward the ohio river valley on saturday, strong low
pressure around 29.0 inches will develop in northern manitoba
through the weekend. the tight pressure gradient may bring 
southwest gales to lake michigan on sunday.


lmz261-362-364-366-563-565-567-868-152130-
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-
848 am cdt thu oct 15 2026

sheboygan wi to pentwater mi north...

...gale warning in effect from friday morning through late friday
night...

.rest of today...southeast winds 10 to 15 kt increasing to 10 to
20 kt. showers this afternoon. waves 3 to 5 ft. 
.tonight...east winds 10 to 20 kt diminishing to 10 to 15 kt late
in the evening, then becoming northeast 10 to 20 kt after
midnight becoming north to 30 kt late. showers in the evening,
then chance of showers overnight. waves 3 to 5 ft building to
4 to 7 ft occasionally to 9 ft. 
.friday...north winds to 30 kt increasing to gales to 45 kt.
chance of showers. waves 6 to 9 ft occasionally to 12 ft building
to 12 to 16 ft occasionally to 21 ft. 
.friday night...north gales to 40 kt diminishing to 30 kt
overnight. waves 12 to 16 ft occasionally to 21 ft subsiding to
8 to 12 ft occasionally to 16 ft. 
.saturday...west winds 15 to 25 kt becoming southwest to 30 kt.
waves 4 to 6 ft occasionally to 8 ft building to 4 to 7 ft
occasionally to 9 ft. 
.saturday night...southwest winds to 30 kt increasing to gales to
35 kt. waves 6 to 9 ft occasionally to 12 ft building to 8 to
12 ft occasionally to 16 ft. 
.sunday...southwest gales to 40 kt. waves 10 to 14 ft
occasionally to 18 ft. 
.monday...southwest winds 15 to 25 kt diminishing to 10 to 20 kt.
waves 4 to 7 ft occasionally to 9 ft subsiding to 2 to 4 ft.  

$$
fzus63 kmkx 151348
glflm 
expires:202610152130;;140083

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
848 am cdt thu oct 15 2026

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...

two areas of low pressure are progged to merge over the great 
lakes region into a single low pressure later today into tonight 
and deepen to around 29.4 inches as it shifts into the eastern 
great lakes through friday. expect a northerly wind shift to ramp
up and increase to gales and nearing storm force at times friday 
on the backside of the departing low pressure while a strong high 
pressure around 30.7 inches builds to the west. a gale warning
remains in effect for all of the open waters of lake michigan 
friday morning into friday night. 

widespread rain is expected this afternoon into tonight, with a 
few thunderstorms possible over the southern open waters. lake 
effect showers & thunderstorms may linger into friday along the 
back side of departing low pressure. a few waterspouts are 
possible in the friday showers/thunderstorms, particularly over 
the southern half of lake michigan. 

as the high sinks toward the ohio river valley on saturday, strong low
pressure around 29.0 inches will develop in northern manitoba
through the weekend. the tight pressure gradient may bring 
southwest gales to lake michigan on sunday.


lmz080-669-671-673-675-777-779-870-872-874-876-878-152130-
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-
848 am cdt thu oct 15 2026

sheboygan wi to pentwater mi south...

...gale warning in effect from friday morning through late friday
night...

.rest of today...east winds 10 to 20 kt becoming southeast 15 to
25 kt. slight chance of showers through mid morning, then showers
this afternoon. waves 4 to 7 ft occasionally to 9 ft. 
.tonight...southeast winds 10 to 20 kt increasing to 15 to 25 kt
late in the evening, then veering to northwest to 30 kt
overnight. showers and slight chance of thunderstorms in the
evening, then chance of showers overnight. waves 4 to 6 ft
occasionally to 8 ft building to 7 to 10 ft occasionally to
13 ft. 
.friday...northwest winds to 30 kt increasing to gales to 35 kt
late in the morning, then becoming north gales to 40 kt early in
the afternoon increasing to gales to 45 kt late. chance of
showers in the morning, then showers likely in the afternoon.
waves 8 to 11 ft occasionally to 14 ft building to 14 to 18 ft
occasionally to 23 ft. 
.friday night...north gales to 45 kt diminishing to 30 kt
overnight. chance of rain showers in the evening. waves 15 to
20 ft occasionally to 26 ft subsiding to 12 to 16 ft occasionally
to 21 ft. 
.saturday...north winds 10 to 20 kt backing to southwest 15 to
25 kt. waves 7 to 10 ft occasionally to 13 ft subsiding to 3 to
5 ft. 
.saturday night...southwest winds 15 to 25 kt increasing to
30 kt. waves 7 to 10 ft occasionally to 13 ft. 
.sunday...southwest winds to 30 kt increasing to gales to 40 kt.
waves 10 to 14 ft occasionally to 18 ft. 
.monday...southwest winds 10 to 20 kt. waves 4 to 6 ft
occasionally to 8 ft subsiding to 2 to 4 ft.  

$$
© Copyright 2026 WeatherFlow, Inc · Contact Us ·