fzus61 kcle 211403
glfle 
expires:202510212030;;511198

open lake forecast for lake erie
national weather service cleveland oh
1003 am edt tue oct 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...
low pressure 29.40 inches continues moving east across the 
northern great lakes today, with the trailing cold front exiting
the region by this afternoon. the low will lift north into quebec,
dragging another cold front across lake erie on thursday. a 
trough averaging 30.10 inches persists across the lake on friday 
before high pressure 30.20 inches builds towards the eastern great
lakes friday night into saturday.


lez162>164-212030-
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-
1003 am edt tue oct 21 2025

.rest of today...southwest winds 20 to 25 knots becoming west. a
slight chance of showers late this morning. a chance of showers
with a slight chance of thunderstorms late. waves 3 to 6 feet. 
.tonight...southwest winds to 30 knots becoming west. showers
likely with a slight chance of thunderstorms in the evening, then
a chance of showers with a slight chance of thunderstorms after
midnight. waves 3 to 6 feet building to 4 to 7 feet. waves
occasionally around 9 feet. 
.wednesday...west gales to 35 knots. a chance of waterspouts.
showers. waves 5 to 8 feet. waves occasionally around 10 feet. 
.wednesday night...west winds to 30 knots. a chance of
waterspouts. showers. waves 5 to 8 feet. waves occasionally
around 10 feet. 
.thursday...west winds 15 to 25 knots. showers likely during the
day, then a chance of showers thursday night. waves 3 to 6 feet
subsiding to 2 to 4 feet. 
.friday...west winds 5 to 15 knots diminishing to less than
10 knots. waves 1 to 3 feet subsiding to 1 foot or less. 
.saturday...west winds 10 knots or less becoming southeast. a
chance of showers saturday night. waves 1 foot or less. 

winds and waves higher in and near thunderstorms.

$$

fzus63 kdtx 211315
glflh 
expires:202510212200;;509988

open lake forecast for lake huron
national weather service detroit/pontiac mi
915 am edt tue oct 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...low pressure of 29.40 inches tracks over lake superior
today, and through northern lake huron on wednesday. much colder
air will filter into the great lakes region leading to unsettled
weather and hazardous conditions for small boats.


lhz462>464-212200-
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-
915 am edt tue oct 21 2025

.rest of today...southwest winds 15 to 20 knots. waves 4 to
6 feet. waves occasionally around 8 feet. 
.tonight...southwest winds 15 to 20 knots increasing to 20 to
25 knots late in the evening...then decreasing to 15 to 20 knots
after midnight. showers likely in the evening...then a chance of
showers after midnight. a chance of waterspouts. waves 4 to
6 feet. waves occasionally around 8 feet. 
.wednesday...southwest winds 15 to 20 knots. showers. a chance of
waterspouts in the afternoon. waves 4 to 6 feet. waves
occasionally around 8 feet. 
.wednesday night...west winds 20 to 25 knots. showers. a chance
of waterspouts. waves 6 to 9 feet. waves occasionally around
12 feet. 
.thursday...west winds 20 to 25 knots decreasing to 15 to
20 knots. a chance of waterspouts in the morning. showers. rain
showers likely late in the evening. waves 8 to 12 feet. waves
occasionally around 15 feet. 
.friday...west winds 15 to 20 knots decreasing to 5 to 10 knots.
a chance of showers. waves 4 to 6 feet subsiding to 1 to 3 feet
in the late evening and early morning. waves occasionally around
8 feet. 
.saturday...northwest winds 5 to 10 knots veering to the
northeast in the late evening and early morning. a chance of
showers early in the morning. waves 2 feet or less. 


$$

fzus63 kdtx 211315
glfsc 
expires:202510212200;;510038

lake st clair forecast
national weather service detroit/pontiac mi
915 am edt tue oct 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...low pressure of 29.40 inches tracks over lake superior
today, and through northern lake huron on wednesday. much colder
air will filter into the great lakes region leading to unsettled
weather and hazardous conditions for small boats.


lcz460-212200-
lake st clair-
915 am edt tue oct 21 2025

...small craft advisory in effect through late wednesday night...

.rest of today...southwest winds 15 to 20 knots. gusts 25 knots.
partly sunny. light showers likely late in the afternoon. waves 1
to 3 feet.
.tonight...southwest winds 20 to 25 knots increasing to 30 knots
early in the morning. partly cloudy until early morning becoming
mostly cloudy. light showers likely until early morning...then a
chance of light showers early in the morning. waves 1 to 3 feet
building to 2 to 4 feet in the late evening and overnight.
.wednesday...southwest winds to 30 knots diminishing to 20 to 25
knots with gusts to 30 knots in the late morning and afternoon.
light showers. waves 2 to 4 feet.
.wednesday night...west winds 20 to 25 knots. gusts to 30 knots
early in the evening. light showers early in the evening...then
light showers likely in the late evening and early morning. a chance
of light showers after midnight. waves 2 to 4 feet.
.thursday...west winds 15 to 20 knots. mostly cloudy with a chance
of light showers in the morning...then partly cloudy with light
showers likely in the afternoon and evening. waves 1 to 3 feet.
.friday...northwest winds 15 to 20 knots. mostly clear. waves 2 feet
or less.
.saturday...light and variable winds. mostly clear. waves 2 feet or
less.

$$

fzus63 kmkx 211404
glflm 
expires:202510212115;;511244

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
904 am cdt tue oct 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...

low pressure of 29.4 inches is slowly moving east across lake 
superior. isolated gales are possible in the northern third of the
lake through this morning, but are not expected to be widespread.
as the low progresses east today, west to northwest gales will 
develop across the southern half of the lake behind a cold front. 
gales will continue through wednesday afternoon, before winds 
gradually weaken wednesday evening. 

lighter winds are expected for the end of the week as high 
pressure builds in from the northern great plains.


lmz080-567-669-671-673-675-777-779-868-870-872-874-876-878-212115-
lake michigan from michigan city in to st. joseph mi 5 nm
offshore to mid lake-
lake michigan from two rivers to sheboygan wi 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 pentwater to manistee mi 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-
904 am cdt tue oct 21 2025

two rivers wi to manistee mi south...

...gale warning in effect through wednesday evening...

.rest of today...west winds to 30 kt increasing to gales to
35 kt. isolated showers late this morning, then scattered showers
with isolated thunderstorms this afternoon. waves 6 to 9 ft
occasionally to 12 ft building to 8 to 11 ft occasionally to
14 ft. 
.tonight...west gales to 35 kt. numerous showers with isolated
thunderstorms in the evening, then showers overnight. waves 10 to
14 ft occasionally to 18 ft. 
.wednesday...northwest gales to 40 kt. scattered showers in the
morning, then chance of showers in the afternoon. waves 12 to
16 ft occasionally to 21 ft. 
.wednesday night...northwest gales to 35 kt diminishing to 30 kt.
chance of rain showers. waves 12 to 16 ft occasionally to 21 ft. 
.thursday...northwest winds to 30 kt diminishing to 15 to 25 kt.
chance of rain showers. waves 8 to 11 ft occasionally to 14 ft
subsiding to 7 to 10 ft occasionally to 13 ft. 
.thursday night...northwest winds 15 to 25 kt diminishing to
10 to 20 kt. chance of rain showers. waves 5 to 8 ft occasionally
to 10 ft subsiding to 4 to 6 ft occasionally to 8 ft. 
.friday...northwest winds 10 to 15 kt. waves 3 to 5 ft subsiding
to 1 to 3 ft. 
.saturday...southeast winds 10 to 15 kt increasing to 10 to
20 kt. waves 2 to 4 ft.  

$$