fzus61 kbuf 050302
glflo 
expires:202511051000;;866025

open lake forecast for lake ontario
national weather service buffalo ny
1002 pm est tue nov 4 2025

for waters beyond five nautical miles of shore on lake ontario

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 30.3 inch high stretching from the great lakes to 
the southeast u.s. will push off the coast tonight through 
wednesday. an area of low pressure will pass to the west and north 
of the lake wednesday, deepening from 29.8 inches down to 29.4 
inches through the day. following this low, another 30.3 inch 
surface high will reestablish over the lake for thursday. the 
surface high will then track east off the atlantic coast through 
friday allowing for another cold frontal passage. a 29.4 inch low 
near james bay will drag its cold front across the lake friday night 
into saturday. a 29.7 inch surface low will track from the ohio 
valley to new england sunday into early monday, deepening to 29.5 
inches.


loz063>065-051000-
lake ontario open waters from hamlin beach to the saint lawrence
river-
1002 pm est tue nov 4 2025

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

.overnight...northwest winds 15 to 20 knots becoming
southwest 10 to 15 knots. waves 3 to 5 feet subsiding to 1 to
3 feet. 
.wednesday...south winds 10 to 15 knots becoming southwest and
increasing to 35 knot gales in the afternoon. a chance of showers
in the morning, then showers in the afternoon. waves 1 to 3 feet
building to 10 to 13 feet. waves occasionally around 16 feet. 
.wednesday night...west gales to 40 knots becoming northwest and
diminishing to 30 knots overnight. showers. waves 14 to 18 feet
subsiding to 8 to 11 feet. waves occasionally around 23 feet. 
.thursday...northwest winds 15 to 25 knots becoming west. a
chance of rain showers in the morning. waves 6 to 9 feet
subsiding to 3 to 6 feet. waves occasionally around 11 feet. 
.thursday night...west winds 5 to 15 knots becoming south 15 to
20 knots. waves 2 to 4 feet subsiding to 1 to 3 feet. 
.friday...south winds to 30 knots becoming west and diminishing
to 15 to 20 knots. showers. waves 3 to 6 feet building to 5 to
8 feet. waves occasionally around 10 feet. 
.saturday...northwest winds 15 to 20 knots becoming northeast
10 to 15 knots. rain showers during the day, then a chance of
rain showers saturday night. waves 3 to 6 feet subsiding to 1 to
3 feet. 
.sunday...south winds 15 to 25 knots becoming northwest. rain
showers during the day, then rain showers with snow showers
likely sunday night. waves 2 to 4 feet building to 4 to 7 feet.
waves occasionally around 9 feet. 

$$

fzus61 kbuf 050302
glflo 
expires:202511051000;;866024

open lake forecast for lake ontario
national weather service buffalo ny
1002 pm est tue nov 4 2025

for waters beyond five nautical miles of shore on lake ontario

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 30.3 inch high stretching from the great lakes to 
the southeast u.s. will push off the coast tonight through 
wednesday. an area of low pressure will pass to the west and north 
of the lake wednesday, deepening from 29.8 inches down to 29.4 
inches through the day. following this low, another 30.3 inch 
surface high will reestablish over the lake for thursday. the 
surface high will then track east off the atlantic coast through 
friday allowing for another cold frontal passage. a 29.4 inch low 
near james bay will drag its cold front across the lake friday night 
into saturday. a 29.7 inch surface low will track from the ohio 
valley to new england sunday into early monday, deepening to 29.5 
inches.


loz062-051000-
lake ontario open waters from the niagara river to hamlin beach-
1002 pm est tue nov 4 2025

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

.overnight...west winds 5 to 15 knots becoming south. waves
2 to 4 feet subsiding to 1 to 3 feet. 
.wednesday...south winds 15 to 25 knots becoming west and
increasing to 35 knot gales in the afternoon. showers. waves 1 to
3 feet building to 10 to 13 feet. waves occasionally around
16 feet. 
.wednesday night...northwest gales to 35 knots diminishing to
30 knots. showers. waves 11 to 16 feet subsiding to 6 to 9 feet.
waves occasionally around 20 feet. 
.thursday...northwest winds 15 to 20 knots becoming west 10 to
15 knots. a chance of showers in the morning. waves 4 to 7 feet
subsiding to 1 to 3 feet. waves occasionally around 9 feet. 
.thursday night...west winds 5 to 15 knots becoming south. waves
1 to 2 feet. 
.friday...south winds 15 to 25 knots becoming west. showers.
waves 3 to 5 feet building to 4 to 7 feet, then subsiding to 3 to
6 feet. waves occasionally around 9 feet. 
.saturday...northwest winds 15 to 20 knots becoming east 10 to
15 knots. a chance of showers. waves 3 to 5 feet subsiding to
1 to 2 feet. 
.sunday...northeast winds 15 to 25 knots becoming northwest. rain
showers likely during the day, then rain and snow showers likely
sunday night. waves 3 to 6 feet building to 4 to 7 feet. waves
occasionally around 9 feet. 

$$

fzus61 kcle 050228
glfle 
expires:202511050930;;865096

open lake forecast for lake erie
national weather service cleveland oh
928 pm est tue nov 4 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 warm front lifts northeast across lake erie tonight. low 
pressure 29.70 inches will move east across the great lakes 
region tonight into wednesday, quickly bringing a cold front
southeastward across the region. high pressure 30.30 inches will 
briefly return for thursday before departing to the east thursday
night. low pressure 29.50 inches will enter the northern great 
lakes on friday bringing a warm front across the area friday 
morning, followed by a cold front friday night. low pressure 29.60
inches will move through the area on saturday night into sunday.


lez061-168-169-050930-
ripley to buffalo ny extending from 5nm off shoreline to us-
canadian border-geneva-on-the-
lake to conneaut oh beyond 5 nm off shoreline to us-
canadian border-
conneaut oh to ripley ny beyond 5 nm off shoreline to us-
canadian border-
928 pm est tue nov 4 2025

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

.overnight...southwest winds 10 to 15 knots becoming south
15 to 20 knots. waves 3 to 5 feet subsiding to 2 to 4 feet. 
.wednesday...south winds to 30 knots becoming west and increasing
to 40 knot gales in the afternoon. a slight chance of rain late
in the morning. a chance of rain early in the afternoon, then
rain late. waves 4 to 7 feet building to 10 to 15 feet. waves
occasionally around 19 feet. 
.wednesday night...northwest gales to 40 knots diminishing to
30 knots. rain likely in the evening, then a chance of rain
overnight. waves 11 to 15 feet subsiding to 5 to 8 feet. waves
occasionally around 19 feet. 
.thursday...northwest winds 15 to 20 knots becoming west 5 to
15 knots. waves 3 to 6 feet subsiding to 1 to 3 feet. 
.thursday night...southwest winds 5 to 15 knots becoming south
15 to 20 knots. waves 1 to 3 feet building to 2 to 4 feet. 
.friday...south winds to 30 knots becoming west and diminishing
to 15 to 20 knots. rain. waves 4 to 7 feet building to 5 to
9 feet, then subsiding to 4 to 6 feet. waves occasionally around
11 feet. 
.saturday...northwest winds 15 to 20 knots becoming east 5 to
15 knots. a chance of rain during the day, then rain likely
saturday night. waves 2 to 4 feet subsiding to 1 to 3 feet. 
.sunday...east winds 15 to 25 knots becoming northwest. rain
during the day, then rain and snow sunday night. waves 2 to
4 feet building to 3 to 6 feet. 

$$

fzus61 kcle 050228
glfle 
expires:202511050930;;865094

open lake forecast for lake erie
national weather service cleveland oh
928 pm est tue nov 4 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 warm front lifts northeast across lake erie tonight. low 
pressure 29.70 inches will move east across the great lakes 
region tonight into wednesday, quickly bringing a cold front
southeastward across the region. high pressure 30.30 inches will 
briefly return for thursday before departing to the east thursday
night. low pressure 29.50 inches will enter the northern great 
lakes on friday bringing a warm front across the area friday 
morning, followed by a cold front friday night. low pressure 29.60
inches will move through the area on saturday night into sunday.


lez162>164-050930-
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-
928 pm est tue nov 4 2025

.overnight...south winds 10 to 15 knots becoming southwest
and increasing to 15 to 25 knots. waves 1 to 3 feet building to
2 to 4 feet. 
.wednesday...southwest winds to 30 knots becoming west. a slight
chance of rain early in the afternoon. waves 3 to 6 feet building
to 5 to 8 feet. waves occasionally around 10 feet. 
.wednesday night...northwest winds to 30 knots diminishing to
15 to 25 knots. waves 5 to 8 feet subsiding to 2 to 4 feet. waves
occasionally around 10 feet. 
.thursday...northwest winds 5 to 15 knots becoming south 10 knots
or less. waves 1 to 3 feet subsiding to 1 foot or less. 
.thursday night...southeast winds 5 to 10 knots becoming south
and increasing to 15 to 25 knots overnight. a chance of rain
overnight. waves 2 feet or less building to 2 to 4 feet. 
.friday...southwest winds 15 to 25 knots becoming northwest. rain
during the day, then a chance of rain friday night. waves 3 to
5 feet subsiding to 1 to 3 feet. 
.saturday...northwest winds 5 to 15 knots becoming southeast
15 to 20 knots. rain likely saturday night. waves 1 to 3 feet. 
.sunday...northwest winds 15 to 25 knots increasing to 30 knots.
rain likely during the day, then rain likely with a chance of
snow sunday night. waves 3 to 6 feet building to 4 to 7 feet,
then subsiding to 3 to 6 feet. waves occasionally around 9 feet. 

$$

fzus61 kcle 050228
glfle 
expires:202511050930;;865095

open lake forecast for lake erie
national weather service cleveland oh
928 pm est tue nov 4 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 warm front lifts northeast across lake erie tonight. low 
pressure 29.70 inches will move east across the great lakes 
region tonight into wednesday, quickly bringing a cold front
southeastward across the region. high pressure 30.30 inches will 
briefly return for thursday before departing to the east thursday
night. low pressure 29.50 inches will enter the northern great 
lakes on friday bringing a warm front across the area friday 
morning, followed by a cold front friday night. low pressure 29.60
inches will move through the area on saturday night into sunday.


lez165>167-050930-
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-willowick to geneva-on-the-
lake oh beyond 5nm off shoreline to us-canadian border-
928 pm est tue nov 4 2025

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

.overnight...southwest winds 10 to 15 knots becoming south
and increasing to 15 to 25 knots. waves 2 to 4 feet building to
4 to 7 feet. waves occasionally around 9 feet. 
.wednesday...southwest winds to 30 knots becoming west and
increasing to 40 knot gales in the afternoon. a chance of rain in
the afternoon. waves 6 to 9 feet building to 10 to 13 feet. waves
occasionally around 16 feet. 
.wednesday night...northwest gales to 40 knots diminishing to
30 knots. a chance of rain in the evening. waves 10 to 13 feet
subsiding to 5 to 9 feet. waves occasionally around 16 feet. 
.thursday...northwest winds 15 to 20 knots becoming west and
diminishing to less than 10 knots in the afternoon. waves 3 to
6 feet subsiding to 1 to 3 feet. 
.thursday night...south winds 5 to 15 knots increasing to
30 knots. waves 2 feet or less building to 3 to 6 feet. 
.friday...south winds to 30 knots becoming northwest and
diminishing to 15 to 20 knots. rain. waves 6 to 10 feet subsiding
to 3 to 6 feet. waves occasionally around 13 feet. 
.saturday...northwest winds 15 to 20 knots becoming southeast. a
chance of rain during the day, then rain likely saturday night.
waves 2 to 4 feet. 
.sunday...southwest winds to 30 knots becoming northwest. rain
during the day, then rain and snow likely sunday night. waves
5 to 9 feet. waves occasionally around 11 feet. 

$$

fzus63 kdtx 050301
glfsc 
expires:202511051115;;865890

lake st clair forecast
national weather service detroit/pontiac mi
1001 pm est tue nov 4 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 system, 29.70 inches, will tracks into
the central great lakes tomorrow, bringing gust to gales across
lake huron and the saginaw bay. high pressure, 30.20 inches, will
then briefly fill in on thursday.


lcz460-051115-
lake st clair-
1001 pm est tue nov 4 2025

...small craft advisory in effect from 7 am est wednesday through
wednesday evening...

.rest of tonight...south winds 10 to 15 knots increasing to 20 to 25
knots. mostly cloudy. waves 1 to 3 feet building to 2 to 4 feet
early in the morning.
.wednesday...southwest winds 20 to 25 knots with gusts to 30 knots
veering to the northwest with gusts to 35 knot gales late in the
afternoon. mostly cloudy with a chance of light rain. waves 2 to 4
feet.
.wednesday night...northwest winds to 30 knots diminishing to 15 to
20 knots. clear. a chance of light rain early in the evening. waves
2 to 4 feet subsiding to 1 to 3 feet after midnight.
.thursday...northwest winds 10 to 15 knots becoming west 5 to 10
knots in the late morning and early afternoon...then backing to the
southwest early in the afternoon. mostly sunny. waves 2 feet or
less.
.thursday night...south winds 10 to 15 knots increasing to 20 to 25
knots in the late evening and overnight. partly cloudy early in the
evening becoming mostly cloudy. a chance of light rain after
midnight. waves 2 feet or less building to 2 to 4 feet in the late
evening and overnight.
.friday...south winds 20 to 25 knots becoming southwest 15 to 20
knots in the afternoon and evening. light rain...then light rain
likely in the evening. waves 2 to 4 feet subsiding to 1 to 3 feet in
the evening.
.saturday...northeast winds 15 to 20 knots. partly cloudy. a chance
of light rain. waves 2 feet or less.
.sunday...northwest winds 20 to 25 knots. partly cloudy. light rain
likely and a chance of light snow. waves 2 to 4 feet.

$$

fzus63 kdtx 050300
glflh 
expires:202511051100;;865847

open lake forecast for lake huron
national weather service detroit/pontiac mi
1000 pm est tue nov 4 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 system, 29.70 inches, will tracks into
the central great lakes tomorrow, bringing gust to gales across
lake huron and the saginaw bay. high pressure, 30.20 inches, will
then briefly fill in on thursday.


lhz361>363-051100-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
lake huron from presque isle light to sturgeon point mi beyond
5nm off shore-
lake huron from sturgeon point to alabaster mi beyond 5nm off
shore-
1000 pm est tue nov 4 2025

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

.rest of tonight...south winds 5 to 10 knots. a chance of rain
this evening...then rain likely after midnight. waves 1 to 3 feet
building to 2 to 4 feet early in the morning. 
.wednesday...southeast winds 10 to 15 knots becoming southwest
15 to 20 knots late in the morning...then becoming west 20 to
25 knots with gusts to around 30 knots early in the afternoon
becoming northwest to 30 knots with gusts to 35 knot gales late
in the afternoon. rain. waves 4 to 6 feet building to 8 to
12 feet in the afternoon. waves occasionally around 15 feet. 
.wednesday night...northwest winds to 30 knots with gusts to
35 knot gales decreasing to 15 to 20 knots. rain in the evening...
then a chance of rain after midnight. waves 12 to 16 feet. waves
occasionally around 20 feet. 
.thursday...northwest winds 10 to 15 knots becoming west 5 to
10 knots in the late morning and early afternoon...then backing
to the southwest early in the afternoon. waves 6 to 9 feet
subsiding to 2 to 4 feet. waves occasionally around 12 feet. 
.thursday night...southwest winds 10 to 15 knots becoming south
to 30 knots. a chance of rain in the evening...then rain likely
after midnight. waves 2 to 4 feet building to 8 to 12 feet in the
late evening and overnight. waves occasionally around 15 feet. 
.friday...south winds to 30 knots becoming southwest 15 to
20 knots late in the morning...then veering to the northwest late
in the evening. rain...then a chance of rain late in the
afternoon. waves 8 to 12 feet. waves occasionally around 15 feet.
.saturday...north winds 10 to 15 knots becoming northwest 5 to
10 knots until early evening...then becoming north 10 to 15 knots
in the late evening and early morning. a chance of rain and snow
until early morning. waves 4 to 6 feet subsiding to 1 to 3 feet
until early morning. waves occasionally around 8 feet. 
.sunday...north winds 10 to 15 knots increasing to 15 to 20 knots
in the late morning and early afternoon...then increasing to
20 to 25 knots early in the evening decreasing to 15 to 20 knots
in the late evening and early morning. a chance of rain and
snow...then a chance of snow in the late evening and early
morning. waves 4 to 6 feet building to 8 to 12 feet. waves
occasionally around 15 feet. 


$$

fzus63 kdtx 050300
glflh 
expires:202511051100;;865848

open lake forecast for lake huron
national weather service detroit/pontiac mi
1000 pm est tue nov 4 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 system, 29.70 inches, will tracks into
the central great lakes tomorrow, bringing gust to gales across
lake huron and the saginaw bay. high pressure, 30.20 inches, will
then briefly fill in on thursday.


lhz462>464-051100-
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-
1000 pm est tue nov 4 2025

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

.rest of tonight...southwest winds 5 to 10 knots becoming south
15 to 20 knots. a chance of rain after midnight. waves 1 to
3 feet building to 3 to 5 feet early in the morning. 
.wednesday...south winds 15 to 20 knots becoming southwest 20 to
25 knots with gusts to 35 knot gales in the late morning and
early afternoon...then becoming northwest to 30 knots with gusts
to 35 knot gales late in the afternoon. rain. waves 4 to 6 feet
building to 10 to 14 feet. waves occasionally around 18 feet. 
.wednesday night...northwest at 35 knot gales with gusts to
40 knot gales decreasing to 20 to 25 knots with gusts to around
30 knots. rain in the evening...then a chance of rain after
midnight. waves 12 to 16 feet. waves occasionally around 20 feet.
a gale warning may be needed. 
.thursday...northwest winds 15 to 20 knots becoming west 5 to
10 knots. waves 6 to 9 feet subsiding to 2 to 4 feet. waves
occasionally around 12 feet. 
.thursday night...south winds 10 to 15 knots increasing to
30 knots. a chance of rain after midnight. waves 1 to 3 feet
building to 8 to 12 feet. waves occasionally around 15 feet. 
.friday...south winds 20 to 25 knots with gusts to around
30 knots becoming southwest 15 to 20 knots with gusts to around
30 knots late in the morning...then veering to the northwest late
in the evening. rain...then rain likely late in the afternoon. a
chance of rain late in the evening. waves 6 to 9 feet. waves
occasionally around 12 feet. 
.saturday...northwest winds 15 to 20 knots decreasing to 10 to
15 knots in the late morning and early afternoon...then
decreasing to 5 to 10 knots early in the evening becoming
northeast 10 to 15 knots in the late evening and early morning. a
chance of rain...then rain likely in the late evening and early
morning. waves 5 to 7 feet subsiding to 2 to 4 feet until early
morning. waves occasionally around 10 feet. 
.sunday...northeast winds 15 to 20 knots becoming north 20 to
25 knots with gusts to around 30 knots. rain likely. snow likely
until early morning. waves 4 to 6 feet building to 8 to 12 feet.
waves occasionally around 15 feet. 


$$

fzus63 kmkx 050303
glflm 
expires:202511051015;;866082

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
903 pm cst tue nov 4 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 29.6 inches will cross northern wisconsin and 
continue east across the lake overnight. breezy south to southwest 
winds are expected across the lake as this low passes. winds could 
approach gale during this time. weak environmental mixing should 
prevent stronger winds aloft from reaching the surface. 

winds will turn to northwesterly behind the low and associated cold 
front wednesday morning. winds will remain near gale force through 
wednesday afternoon until the pressure gradient weakens and the low 
moves into the new england states. can't rule out an occasional gale 
force gust wednesday morning and afternoon across the eastern side 
of the lake. 

wednesday evening winds will diminish and become light as high 
pressure moves from the northern plains into the ohio river valley. 
light northwest winds will turn to southerly thursday. winds will 
increase again as the pressure gradient tightens ahead of an 
incoming low pressure around 29.4 inches thursday night. there is a 
potential for some southerly gales during this time. this low will 
cross northern minnesota and move over lake superior dragging a cold 
front across lake michigan. behind the front friday morning, brisk 
northwest winds are expected. these brisk winds will persist through 
monday.


lmz080-669-671-673-675-777-779-870-872-874-876-878-051015-
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-
903 pm cst tue nov 4 2025

sheboygan wi to pentwater mi south...

.rest of tonight...south winds to 30 kt becoming southwest. waves
4 to 6 ft occasionally to 8 ft building to 5 to 8 ft occasionally
to 10 ft. 
.wednesday...west winds to 30 kt becoming northwest. waves 6 to
9 ft occasionally to 12 ft building to 8 to 11 ft occasionally to
14 ft. 
.wednesday night...northwest winds to 30 kt diminishing to 10 to
15 kt. waves 8 to 12 ft occasionally to 16 ft subsiding to 4 to
7 ft occasionally to 9 ft. 
.thursday...southwest winds 10 to 15 kt becoming south to 30 kt
in the afternoon. waves 3 to 5 ft building to 4 to 7 ft
occasionally to 9 ft. 
.thursday night...south gales to 35 kt becoming southwest. chance
of rain in the evening, then rain overnight. waves 8 to 12 ft
occasionally to 16 ft. 
.friday...southwest winds to 30 kt becoming west. chance of
showers in the morning. waves 8 to 11 ft occasionally to 14 ft
subsiding to 6 to 9 ft occasionally to 12 ft. 
.friday night...northwest winds to 30 kt becoming north 15 to
25 kt. chance of rain showers. waves 6 to 9 ft occasionally to
12 ft. 
.saturday...north winds 10 to 15 kt becoming northeast 10 to
20 kt. chance of rain. waves 4 to 7 ft occasionally to 9 ft
subsiding to 3 to 5 ft. 
.sunday...north gales to 40 kt. chance of rain and snow showers.
waves 10 to 14 ft occasionally to 18 ft.  

$$

fzus63 kmkx 050303
glflm 
expires:202511051015;;866081

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
903 pm cst tue nov 4 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 29.6 inches will cross northern wisconsin and 
continue east across the lake overnight. breezy south to southwest 
winds are expected across the lake as this low passes. winds could 
approach gale during this time. weak environmental mixing should 
prevent stronger winds aloft from reaching the surface. 

winds will turn to northwesterly behind the low and associated cold 
front wednesday morning. winds will remain near gale force through 
wednesday afternoon until the pressure gradient weakens and the low 
moves into the new england states. can't rule out an occasional gale 
force gust wednesday morning and afternoon across the eastern side 
of the lake. 

wednesday evening winds will diminish and become light as high 
pressure moves from the northern plains into the ohio river valley. 
light northwest winds will turn to southerly thursday. winds will 
increase again as the pressure gradient tightens ahead of an 
incoming low pressure around 29.4 inches thursday night. there is a 
potential for some southerly gales during this time. this low will 
cross northern minnesota and move over lake superior dragging a cold 
front across lake michigan. behind the front friday morning, brisk 
northwest winds are expected. these brisk winds will persist through 
monday.


lmz261-362-364-366-563-565-567-868-051015-
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-
903 pm cst tue nov 4 2025

sheboygan wi to pentwater mi north...

.rest of tonight...south winds to 30 kt diminishing to 15 to
25 kt. slight chance of rain late this evening, then chance of
rain overnight. waves 3 to 5 ft building to 4 to 7 ft
occasionally to 9 ft. 
.wednesday...north winds to 30 kt becoming northwest. chance of
rain and rain showers in the morning. waves 4 to 7 ft
occasionally to 9 ft building to 7 to 10 ft occasionally to
13 ft. 
.wednesday night...northwest gales to 35 kt diminishing to 10 to
20 kt. waves 6 to 9 ft occasionally to 12 ft subsiding to 3 to
5 ft. 
.thursday...west winds 10 to 15 kt becoming south to 30 kt in the
afternoon. waves 1 to 3 ft building to 4 to 6 ft occasionally to
8 ft. 
.thursday night...south gales to 35 kt becoming southwest. rain
likely in the evening, then rain overnight. waves 8 to 12 ft
occasionally to 16 ft. 
.friday...west winds to 30 kt becoming northwest. chance of rain
showers. waves 8 to 11 ft occasionally to 14 ft subsiding to 5 to
8 ft occasionally to 10 ft. 
.friday night...north winds to 30 kt diminishing to 15 to 25 kt.
chance of rain showers. waves 4 to 7 ft occasionally to 9 ft. 
.saturday...north winds 10 to 15 kt. chance of rain. waves 3 to
5 ft subsiding to 1 to 3 ft. 
.sunday...north winds to 30 kt. chance of snow and rain showers.
waves 6 to 9 ft occasionally to 12 ft.  

$$

fzus63 kmqt 050302
glfls 
expires:202511050900;;866008

open lake forecast for lake superior
national weather service marquette mi
1001 pm est tue nov 4 2025

for waters beyond 5 nautical miles of shore on lake superior.

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 29.9 inch low deepens to 29.7 inches through wednesday morning as 
it transits across lake michigan. as the low further deepens to 29.5 
inches over the lower great lakes wednesday evening, 30.2 inch high 
pressure moves over the upper mississippi valley. this high builds 
to 30.3 inches just south of the great lakes thursday. by thursday 
evening, as the high continues pushing east, a 29.6 inch low 
pressure will develop over the dakotas, reaching 29.4 inches in the 
vicnity of lake superior friday morning. the low deepens further to 
29.3 inches over the ontario/quebec line friday evening. with the 
low pushing into central quebec saturday, weak 29.9 inch ridging 
will be over the lake. saturday night into sunday, a low of at least 
29.6 inches will quickly pass south of lake michigan towards the 
lower great lakes while high pressure of at least 30.6 inches builds 
over the northern plains.



lsz266-050900-
lake superior east of a line from manitou island to marquette mi
and west of a line from grand marais mi to the us/canadian border
beyond 5nm from shore-
1001 pm est tue nov 4 2025

...gale watch in effect from wednesday afternoon through
wednesday evening...

.rest of tonight...south winds 10 to 20 knots. a chance of rain
showers late in the evening, then rain showers after midnight.
waves 1 to 3 feet subsiding to calm to 2 feet. 
.wednesday...north winds 15 to 25 knots becoming northwest gales
to 40 knots. showers likely in the morning. a chance of showers
in the afternoon. waves building to 9 to 12 feet occasionally to
15 feet. 
.wednesday night...northwest gales to 35 knots diminishing to
10 to 20 knots. a chance of rain showers in the evening. waves
subsiding to 3 to 6 feet occasionally to 8 feet. 
.thursday...west winds 10 to 20 knots becoming south 20 to
30 knots in the afternoon. a chance of rain showers in the
afternoon. waves subsiding to 1 to 3 feet, then building to 2 to
4 feet. 
.thursday night...south winds 20 to 30 knots. rain showers. waves
building to 5 to 8 feet occasionally to 10 feet, then subsiding
to 3 to 6 feet occasionally to 8 feet. 
.friday...northwest winds 20 to 30 knots becoming north gales to
35 knots in the afternoon. rain showers. waves building to 8 to
11 feet occasionally to 14 feet. 
.friday night...north gales to 35 knots diminishing to 10 to
20 knots after midnight. a chance of snow showers. waves
subsiding to 3 to 5 feet occasionally to 7 feet. 
.saturday...northwest winds 10 to 20 knots increasing to 15 to
25 knots. a chance of snow showers. waves subsiding to calm to
2 feet, then building to 3 to 5 feet occasionally to 7 feet. 
.sunday...north gales to 35 knots. snow showers. waves building
to 5 to 9 feet occasionally to 11 feet. 

$$

fzus63 kmqt 050302
glfls 
expires:202511050900;;866009

open lake forecast for lake superior
national weather service marquette mi
1001 pm est tue nov 4 2025

for waters beyond 5 nautical miles of shore on lake superior.

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 29.9 inch low deepens to 29.7 inches through wednesday morning as 
it transits across lake michigan. as the low further deepens to 29.5 
inches over the lower great lakes wednesday evening, 30.2 inch high 
pressure moves over the upper mississippi valley. this high builds 
to 30.3 inches just south of the great lakes thursday. by thursday 
evening, as the high continues pushing east, a 29.6 inch low 
pressure will develop over the dakotas, reaching 29.4 inches in the 
vicnity of lake superior friday morning. the low deepens further to 
29.3 inches over the ontario/quebec line friday evening. with the 
low pushing into central quebec saturday, weak 29.9 inch ridging 
will be over the lake. saturday night into sunday, a low of at least 
29.6 inches will quickly pass south of lake michigan towards the 
lower great lakes while high pressure of at least 30.6 inches builds 
over the northern plains.



lsz267-050900-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
1001 pm est tue nov 4 2025

...gale watch in effect from wednesday afternoon through
wednesday evening...

.rest of tonight...southwest winds 10 to 20 knots backing
southeast late. a chance of rain showers late in the evening,
then rain showers after midnight. waves 1 to 3 feet subsiding to
calm to 2 feet. 
.wednesday...north winds 15 to 25 knots becoming northwest gales
to 40 knots. showers in the morning, then a chance of showers in
the afternoon. waves building to 9 to 12 feet occasionally to
15 feet. 
.wednesday night...northwest gales to 35 knots diminishing to
15 to 25 knots. rain showers likely in the evening. a chance of
snow showers. a slight chance of rain showers after midnight.
waves building to 10 to 14 feet occasionally to 18 feet, then
subsiding to 3 to 6 feet occasionally to 8 feet. 
.thursday...west winds 10 to 20 knots becoming southwest 15 to
25 knots in the afternoon. a chance of rain showers in the
afternoon. waves subsiding to 1 to 3 feet, then building to 2 to
4 feet. 
.thursday night...south winds 20 to 30 knots. rain showers. waves
building to 3 to 6 feet occasionally to 8 feet. 
.friday...west winds 20 to 30 knots veering north in the
afternoon. rain showers. waves subsiding to 3 to 5 feet
occasionally to 7 feet, then building to 6 to 9 feet occasionally
to 11 feet. 
.friday night...north winds 20 to 30 knots diminishing to 10 to
20 knots after midnight. a chance of rain showers in the evening.
a chance of snow showers. waves subsiding to 2 to 4 feet. 
.saturday...northwest winds 10 to 20 knots. a chance of snow
showers, then snow showers likely. waves subsiding to calm to
2 feet, then building to 2 to 4 feet. 
.sunday...north winds 15 to 25 knots increasing to 20 to
30 knots. snow showers likely. waves building to 4 to 7 feet
occasionally to 9 feet. 

$$

fzus63 kmqt 050302
glfls 
expires:202511050900;;866004

open lake forecast for lake superior
national weather service marquette mi
1001 pm est tue nov 4 2025

for waters beyond 5 nautical miles of shore on lake superior.

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 29.9 inch low deepens to 29.7 inches through wednesday morning as 
it transits across lake michigan. as the low further deepens to 29.5 
inches over the lower great lakes wednesday evening, 30.2 inch high 
pressure moves over the upper mississippi valley. this high builds 
to 30.3 inches just south of the great lakes thursday. by thursday 
evening, as the high continues pushing east, a 29.6 inch low 
pressure will develop over the dakotas, reaching 29.4 inches in the 
vicnity of lake superior friday morning. the low deepens further to 
29.3 inches over the ontario/quebec line friday evening. with the 
low pushing into central quebec saturday, weak 29.9 inch ridging 
will be over the lake. saturday night into sunday, a low of at least 
29.6 inches will quickly pass south of lake michigan towards the 
lower great lakes while high pressure of at least 30.6 inches builds 
over the northern plains.



lsz162-050900-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
1001 pm est tue nov 4 2025 /901 pm cst tue nov 4 2025/

.rest of tonight...east winds 5 to 15 knots becoming northeast
10 to 20 knots by midnight, then backing north late. rain
showers. waves calm to 2 feet building to 1 to 3 feet. 
.wednesday...northwest winds 20 to 30 knots. waves building to
3 to 5 feet occasionally to 7 feet. 
.wednesday night...northwest winds 15 to 25 knots diminishing to
5 to 15 knots by midnight, then backing west late. waves
subsiding to calm to 2 feet. 
.thursday...south winds 5 to 15 knots becoming southeast 10 to
20 knots in the afternoon. a slight chance of rain showers in the
afternoon. waves building to 1 to 3 feet. 
.thursday night...south winds 15 to 25 knots veering west after
midnight. a chance of rain showers. waves building to 2 to
4 feet, then subsiding to 1 to 3 feet. 
.friday...north winds 15 to 25 knots. a chance of rain showers.
waves building to 3 to 5 feet occasionally to 7 feet, then
subsiding to 2 to 4 feet. 
.friday night...north winds 10 to 20 knots diminishing to 5 to
15 knots after midnight. waves subsiding to calm to 2 feet. 
.saturday...north winds 5 to 15 knots increasing to 15 to
25 knots. waves building to 1 to 3 feet. 
.sunday...northwest winds 15 to 25 knots. waves building to 2 to
4 feet, then subsiding to 1 to 3 feet. 

$$

fzus63 kmqt 050302
glfls 
expires:202511050900;;866005

open lake forecast for lake superior
national weather service marquette mi
1001 pm est tue nov 4 2025

for waters beyond 5 nautical miles of shore on lake superior.

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 29.9 inch low deepens to 29.7 inches through wednesday morning as 
it transits across lake michigan. as the low further deepens to 29.5 
inches over the lower great lakes wednesday evening, 30.2 inch high 
pressure moves over the upper mississippi valley. this high builds 
to 30.3 inches just south of the great lakes thursday. by thursday 
evening, as the high continues pushing east, a 29.6 inch low 
pressure will develop over the dakotas, reaching 29.4 inches in the 
vicnity of lake superior friday morning. the low deepens further to 
29.3 inches over the ontario/quebec line friday evening. with the 
low pushing into central quebec saturday, weak 29.9 inch ridging 
will be over the lake. saturday night into sunday, a low of at least 
29.6 inches will quickly pass south of lake michigan towards the 
lower great lakes while high pressure of at least 30.6 inches builds 
over the northern plains.



lsz263-050900-
lake superior from saxon harbor wi to upper entrance to portage
canal mi 5nm off shore to the us/canadian border including isle
royale national park-
1001 pm est tue nov 4 2025

.rest of tonight...southeast winds 5 to 15 knots backing
northeast by midnight, then becoming north 10 to 20 knots late. a
chance of rain showers late in the evening, then rain showers
likely after midnight. waves calm to 2 feet building to 1 to
3 feet. 
.wednesday...northwest winds 15 to 25 knots increasing to 20 to
30 knots. a slight chance of rain showers in the morning. waves
building to 4 to 7 feet occasionally to 9 feet, then subsiding to
3 to 6 feet occasionally to 8 feet. 
.wednesday night...northwest winds 20 to 30 knots diminishing to
5 to 15 knots. waves subsiding to calm to 2 feet. 
.thursday...southwest winds 5 to 15 knots becoming south 15 to
25 knots in the afternoon. a slight chance of rain showers in the
afternoon. waves building to 1 to 3 feet. 
.thursday night...south winds 15 to 25 knots veering southwest
after midnight. a chance of rain showers. waves building to 2 to
4 feet. 
.friday...north gales to 35 knots. a chance of rain showers.
waves building to 4 to 8 feet occasionally to 10 feet. 
.friday night...north winds 15 to 25 knots diminishing to 5 to
15 knots after midnight. waves subsiding to calm to 2 feet. 
.saturday...northwest winds 5 to 15 knots becoming north 20 to
30 knots. a chance of snow showers. waves building to 3 to 5 feet
occasionally to 7 feet. 
.sunday...north winds 20 to 30 knots increasing to gales to
35 knots. waves building to 3 to 6 feet occasionally to 8 feet. 

$$

fzus63 kmqt 050302
glfls 
expires:202511050900;;866006

open lake forecast for lake superior
national weather service marquette mi
1001 pm est tue nov 4 2025

for waters beyond 5 nautical miles of shore on lake superior.

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 29.9 inch low deepens to 29.7 inches through wednesday morning as 
it transits across lake michigan. as the low further deepens to 29.5 
inches over the lower great lakes wednesday evening, 30.2 inch high 
pressure moves over the upper mississippi valley. this high builds 
to 30.3 inches just south of the great lakes thursday. by thursday 
evening, as the high continues pushing east, a 29.6 inch low 
pressure will develop over the dakotas, reaching 29.4 inches in the 
vicnity of lake superior friday morning. the low deepens further to 
29.3 inches over the ontario/quebec line friday evening. with the 
low pushing into central quebec saturday, weak 29.9 inch ridging 
will be over the lake. saturday night into sunday, a low of at least 
29.6 inches will quickly pass south of lake michigan towards the 
lower great lakes while high pressure of at least 30.6 inches builds 
over the northern plains.



lsz264-050900-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
1001 pm est tue nov 4 2025

.rest of tonight...southwest winds 5 to 15 knots veering west by
midnight, then becoming north 10 to 20 knots late. a chance of
rain showers late in the evening, then rain showers likely after
midnight. waves 1 to 3 feet subsiding to calm to 2 feet, then
building to 1 to 3 feet. 
.wednesday...northwest winds 15 to 25 knots increasing to 20 to
30 knots. a chance of rain showers in the morning. waves building
to 5 to 8 feet occasionally to 10 feet. 
.wednesday night...northwest winds 20 to 30 knots diminishing to
5 to 15 knots. waves subsiding to 1 to 3 feet. 
.thursday...west winds 5 to 15 knots becoming south 15 to
25 knots in the afternoon. a chance of rain showers in the
afternoon. waves subsiding to calm to 2 feet, then building to
1 to 3 feet. 
.thursday night...south winds 20 to 30 knots becoming southwest
15 to 25 knots after midnight. rain showers likely in the
evening, then a chance of rain showers after midnight. waves
building to 3 to 6 feet occasionally to 8 feet. 
.friday...north gales to 35 knots. a chance of rain showers.
waves building to 6 to 10 feet occasionally to 13 feet. 
.friday night...north winds 20 to 30 knots becoming northwest
5 to 15 knots after midnight. waves subsiding to 1 to 3 feet. 
.saturday...northwest winds 5 to 15 knots increasing to 15 to
25 knots. a chance of snow showers. waves subsiding to calm to
2 feet, then building to 3 to 5 feet occasionally to 7 feet. 
.sunday...north winds 20 to 30 knots. a chance of snow showers.
waves building to 4 to 7 feet occasionally to 9 feet. 

$$

fzus63 kmqt 050302
glfls 
expires:202511050900;;866007

open lake forecast for lake superior
national weather service marquette mi
1001 pm est tue nov 4 2025

for waters beyond 5 nautical miles of shore on lake superior.

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 29.9 inch low deepens to 29.7 inches through wednesday morning as 
it transits across lake michigan. as the low further deepens to 29.5 
inches over the lower great lakes wednesday evening, 30.2 inch high 
pressure moves over the upper mississippi valley. this high builds 
to 30.3 inches just south of the great lakes thursday. by thursday 
evening, as the high continues pushing east, a 29.6 inch low 
pressure will develop over the dakotas, reaching 29.4 inches in the 
vicnity of lake superior friday morning. the low deepens further to 
29.3 inches over the ontario/quebec line friday evening. with the 
low pushing into central quebec saturday, weak 29.9 inch ridging 
will be over the lake. saturday night into sunday, a low of at least 
29.6 inches will quickly pass south of lake michigan towards the 
lower great lakes while high pressure of at least 30.6 inches builds 
over the northern plains.



lsz265-050900-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
1001 pm est tue nov 4 2025

.rest of tonight...south winds 10 to 20 knots backing north late.
a chance of rain showers late in the evening, then rain showers
after midnight. waves calm to 2 feet. 
.wednesday...north winds 15 to 25 knots becoming northwest to
30 knots with a few gale force gusts to 40 knots possible.
showers likely in the morning. a slight chance of showers in the
afternoon. waves building to 5 to 8 feet occasionally to 10 feet.
.wednesday night...northwest winds to 30 knots with a few gale
force gusts to 35 knots possible diminishing to 10 to 20 knots. a
slight chance of rain showers in the evening. waves subsiding to
1 to 3 feet. 
.thursday...west winds 10 to 20 knots becoming south 15 to
25 knots in the afternoon. a slight chance of rain showers in the
afternoon. waves subsiding to calm to 2 feet, then building to
1 to 3 feet. 
.thursday night...south gales to 35 knots becoming southwest
20 to 30 knots after midnight. rain showers. waves building to
3 to 5 feet occasionally to 7 feet, then subsiding to 1 to
3 feet. 
.friday...northwest winds 20 to 30 knots becoming north gales to
35 knots in the afternoon. rain showers likely in the morning,
then a chance of rain showers in the afternoon. waves building to
7 to 10 feet occasionally to 13 feet. 
.friday night...north winds 20 to 30 knots becoming northwest
10 to 20 knots after midnight. waves subsiding to 2 to 4 feet. 
.saturday...northwest winds 10 to 20 knots increasing to 15 to
25 knots. a chance of snow showers. waves subsiding to calm to
2 feet, then building to 1 to 3 feet. 
.sunday...north gales to 35 knots backing northwest. snow showers
likely. waves building to 5 to 8 feet occasionally to 10 feet,
then subsiding to 3 to 6 feet occasionally to 8 feet. 

$$