fzus61 kbuf 252003
glflo 
expires:202605260300;;639812

open lake forecast for lake ontario
national weather service buffalo ny
403 pm edt mon may 25 2026

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 30.1 inch high will settle across the region through 
tuesday. a cold front associated with a 29.8 inch low over new 
england will drop south across the lake wednesday morning. a 30.2 
inch high over canada will start to expand south over the lake on 
thursday into friday.


loz063>065-260300-
lake ontario open waters from hamlin beach to the saint lawrence
river-
403 pm edt mon may 25 2026

.tonight...southwest winds 5 to 15 knots. waves 2 feet or less. 
.tuesday...southwest winds 5 to 15 knots. waves 2 feet or less. 
.tuesday night...southwest winds 5 to 15 knots becoming west.
waves 2 feet or less. 
.wednesday...west winds 5 to 10 knots. waves 1 to 2 feet. 
.wednesday night...west winds 5 to 15 knots becoming north. waves
2 feet or less. 
.thursday...north winds 5 to 15 knots becoming northwest. waves
2 feet or less. 
.friday...west winds 5 to 15 knots becoming northwest. waves
2 feet or less. 
.saturday...north winds 5 to 15 knots. waves 2 feet or less. 

$$

fzus61 kbuf 252003
glflo 
expires:202605260300;;639811

open lake forecast for lake ontario
national weather service buffalo ny
403 pm edt mon may 25 2026

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 30.1 inch high will settle across the region through 
tuesday. a cold front associated with a 29.8 inch low over new 
england will drop south across the lake wednesday morning. a 30.2 
inch high over canada will start to expand south over the lake on 
thursday into friday.


loz062-260300-
lake ontario open waters from the niagara river to hamlin beach-
403 pm edt mon may 25 2026

.tonight...southwest winds 5 to 10 knots. waves 2 feet or less. 
.tuesday...southwest winds 5 to 15 knots. waves 2 feet or less. 
.tuesday night...southwest winds 10 to 15 knots. waves 1 to
3 feet. 
.wednesday...west winds 5 to 10 knots. waves 2 feet or less. 
.wednesday night...northwest winds 5 to 15 knots becoming north.
waves 2 feet or less. 
.thursday...north winds 5 to 10 knots becoming northwest. waves
1 to 2 feet. 
.friday...west winds 5 to 10 knots becoming northwest. waves 1 to
2 feet. 
.saturday...north winds 5 to 10 knots. waves 2 feet or less. 

$$

fzus61 kcle 260123
glfle 
expires:202605260815;;652065

open lake forecast for lake erie
national weather service cleveland oh
923 pm edt mon may 25 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 will influence lake erie through 
wednesday. a cold front will cross the lake wednesday night 
followed by high pressure 30.10 inches returning thursday into the
weekend.


lez061-166>169-260815-
ripley to buffalo ny extending from 5nm 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-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-
923 pm edt mon may 25 2026

...dense fog advisory in effect until 8 am edt tuesday...

.rest of tonight...light and variable winds. areas of dense fog,
then widespread dense fog late. waves 1 foot or less. 
.tuesday...light and variable winds. widespread dense fog early,
then areas of dense fog late in the morning. waves 1 foot or
less. 
.tuesday night...southwest winds less than 10 knots. waves 1 foot
or less. 
.wednesday...southwest winds 10 knots or less becoming west.
waves 1 foot or less. 
.wednesday night...northwest winds 5 to 15 knots becoming north.
waves 2 feet or less. 
.thursday...north winds 5 to 15 knots. waves 2 feet or less. 
.friday...northwest winds 10 knots or less becoming north 10 to
15 knots. waves 2 feet or less. 
.saturday...north winds 10 to 15 knots becoming northeast. waves
1 to 3 feet. 

$$

fzus61 kcle 260123
glfle 
expires:202605260815;;652063

open lake forecast for lake erie
national weather service cleveland oh
923 pm edt mon may 25 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 will influence lake erie through 
wednesday. a cold front will cross the lake wednesday night 
followed by high pressure 30.10 inches returning thursday into the
weekend.


lez162-163-260815-
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-
923 pm edt mon may 25 2026

.rest of tonight...light and variable winds. patchy fog late this
evening, then areas of dense fog after midnight. widespread dense
fog late. waves 1 foot or less. 
.tuesday...light and variable winds. widespread dense fog early,
then areas of dense fog late in the morning. waves 1 foot or
less. 
.tuesday night...light and variable winds. waves 1 foot or less. 
.wednesday...west winds less than 10 knots. waves 1 foot or less.
.wednesday night...east winds 5 to 15 knots becoming north. waves
2 feet or less. 
.thursday...north winds 5 to 15 knots becoming northeast. waves
2 feet or less. 
.friday...north winds 10 knots or less increasing to 10 to
15 knots. waves 2 feet or less. 
.saturday...northeast winds 10 to 15 knots. waves 1 to 3 feet. 

$$

fzus61 kcle 260123
glfle 
expires:202605260815;;652064

open lake forecast for lake erie
national weather service cleveland oh
923 pm edt mon may 25 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 will influence lake erie through 
wednesday. a cold front will cross the lake wednesday night 
followed by high pressure 30.10 inches returning thursday into the
weekend.


lez164-165-260815-
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-
923 pm edt mon may 25 2026

.rest of tonight...light and variable winds. areas of dense fog,
then widespread dense fog late. waves 1 foot or less. 
.tuesday...light and variable winds. widespread dense fog early,
then areas of dense fog late in the morning. waves 1 foot or
less. 
.tuesday night...light and variable winds. waves 1 foot or less. 
.wednesday...southwest winds less than 10 knots. waves 1 foot or
less. 
.wednesday night...north winds 5 to 15 knots. waves 2 feet or
less. 
.thursday...north winds 5 to 15 knots. waves 1 to 2 feet. 
.friday...north winds 10 knots or less increasing to 10 to
15 knots. waves 2 feet or less. 
.saturday...northeast winds 10 to 15 knots. waves 2 to 3 feet. 

$$

fzus61 kcle 251948
glfle 
expires:202605260230;;639399

open lake forecast for lake erie
national weather service cleveland oh
348 pm edt mon may 25 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 into the region today and will 
influence lake erie through wednesday. a cold front will cross the
lake wednesday night followed by high pressure 30.10 inches
returning thursday into the weekend.



lez164>166-260230-
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-
348 pm edt mon may 25 2026

.tonight...northeast winds less than 10 knots. patchy fog late
this evening. patchy dense fog after midnight. waves 1 foot or
less. 
.tuesday...light and variable winds. patchy dense fog in the
morning, then patchy fog early in the afternoon. waves 1 foot or
less. 
.tuesday night...light and variable winds. waves 1 foot or less. 
.wednesday...southwest winds less than 10 knots. waves 1 foot or
less. 
.wednesday night...north winds 5 to 15 knots. waves 2 feet or
less. 
.thursday...north winds 5 to 15 knots. waves 1 to 2 feet. 
.friday...northwest winds 10 knots or less becoming north 10 to
15 knots. waves 2 feet or less. 
.saturday...northeast winds 10 to 15 knots. waves 2 to 3 feet. 

$$

fzus61 kcle 251948
glfle 
expires:202605260230;;639400

open lake forecast for lake erie
national weather service cleveland oh
348 pm edt mon may 25 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 into the region today and will 
influence lake erie through wednesday. a cold front will cross the
lake wednesday night followed by high pressure 30.10 inches
returning thursday into the weekend.



lez061-167>169-260230-
ripley to buffalo ny extending from 5nm off shoreline to us-
canadian border-willowick to geneva-on-the-
lake oh beyond 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-
348 pm edt mon may 25 2026

.tonight...light and variable winds. patchy dense fog after
midnight. waves 1 foot or less. 
.tuesday...light and variable winds. patchy dense fog in the
morning. waves 1 foot or less. 
.tuesday night...southwest winds less than 10 knots. waves 1 foot
or less. 
.wednesday...southwest winds 10 knots or less becoming west.
waves 1 foot or less. 
.wednesday night...west winds 5 to 10 knots becoming north. waves
2 feet or less. 
.thursday...north winds 5 to 10 knots. waves 2 feet or less. 
.friday...northwest winds 10 knots or less becoming north 10 to
15 knots. waves 2 feet or less. 
.saturday...north winds 10 to 15 knots becoming northeast. waves
1 to 3 feet. 

$$

fzus63 kdtx 260131
glfsc 
expires:202605260945;;652162

lake st clair forecast
national weather service detroit/pontiac mi
931 pm edt mon may 25 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...a cold front slowly sags south across lake huron late
tuesday through wednesday, with breezy southwest winds ahead of 
the front. this front moves south across the rest of the area 
wednesday into wednesday night, as high pressure builds in from 
the north. varying winds are expected through the end of the week.


lcz460-260945-
lake st clair-
931 pm edt mon may 25 2026

.rest of tonight...south winds 5 to 10 knots by midnight becoming
light and variable. mostly clear. patchy fog after midnight. waves 2
feet or less.
.tuesday...light and variable winds becoming south 5 to 10 knots in
the afternoon. partly sunny. patchy fog early in the morning. waves
2 feet or less.
.tuesday night...southwest winds 5 to 10 knots becoming light and
variable. partly cloudy becoming mostly cloudy by midnight becoming
partly cloudy. waves 2 feet or less.
.wednesday...light and variable winds becoming northeast 5 to 10
knots early in the afternoon. partly sunny. waves 2 feet or less.
.wednesday night...north winds 10 to 15 knots. mostly clear. waves 1
to 3 feet.
.thursday...north winds 10 to 15 knots. mostly sunny in the morning
becoming clear. waves 2 feet or less.
.friday...north winds 10 to 15 knots. mostly clear. waves 2 feet or
less.
.saturday...northeast winds 15 to 20 knots. mostly clear. waves 2
feet or less.

$$

fzus63 kdtx 260130
glflh 
expires:202605260930;;652134

open lake forecast for lake huron
national weather service detroit/pontiac mi
930 pm edt mon may 25 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...a cold front slowly sags south across lake huron late
tuesday through wednesday, with breezy southwest winds ahead of 
the front. this front moves south across the rest of the area 
wednesday into wednesday night, as high pressure builds in from 
the north. varying winds are expected through the end of the week.


lhz462>464-260930-
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-
930 pm edt mon may 25 2026

.rest of tonight...south winds 10 to 15 knots. waves 1 to 3 feet.
.tuesday...south winds 10 to 15 knots. waves 1 to 3 feet building
to 2 to 4 feet in the afternoon. 
.tuesday night...southwest winds 5 to 10 knots veering to the
west by midnight...then veering to the west 5 to 10 knots after
midnight. waves 1 to 3 feet. 
.wednesday...north winds 5 to 10 knots. waves 2 feet or less. 
.wednesday night...north winds 5 to 10 knots increasing to 10 to
15 knots in the late evening and overnight. waves 1 to 3 feet. 
.thursday...north winds 10 to 15 knots decreasing to 5 to
10 knots late in the afternoon...then becoming light and variable
late in the evening. waves 1 to 3 feet. 
.friday...west winds 5 to 10 knots veering to the northwest early
in the evening...then becoming northwest 5 to 10 knots by
midnight. waves 2 feet or less. 
.saturday...north winds 5 to 10 knots increasing to 10 to
15 knots until early evening...then decreasing to 5 to 10 knots
by midnight. waves 1 to 3 feet building to 2 to 4 feet . 


$$

fzus63 kdtx 260130
glflh 
expires:202605260930;;652133

open lake forecast for lake huron
national weather service detroit/pontiac mi
930 pm edt mon may 25 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...a cold front slowly sags south across lake huron late
tuesday through wednesday, with breezy southwest winds ahead of 
the front. this front moves south across the rest of the area 
wednesday into wednesday night, as high pressure builds in from 
the north. varying winds are expected through the end of the week.


lhz362-363-260930-
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-
930 pm edt mon may 25 2026

.rest of tonight...south winds 10 to 15 knots becoming southwest
15 to 20 knots early in the morning. waves 3 to 5 feet. 
.tuesday...southwest winds 15 to 20 knots becoming northeast
10 to 15 knots late in the afternoon. waves 3 to 5 feet. 
.tuesday night...north winds 10 to 15 knots decreasing to 5 to
10 knots by midnight...then backing to the northwest after
midnight. waves 2 to 4 feet. 
.wednesday...northwest winds 5 to 10 knots. waves 1 to 3 feet. 
.wednesday night...west winds 10 to 15 knots. waves 1 to 3 feet. 
.thursday...north winds 10 to 15 knots decreasing to 5 to
10 knots late in the morning...then backing to the west late in
the evening. waves 1 to 3 feet. 
.friday...west winds 5 to 10 knots. waves 1 to 3 feet. 
.saturday...north winds 10 to 15 knots decreasing to 5 to
10 knots . waves 1 to 3 feet. 


$$

fzus63 kdtx 260130
glflh 
expires:202605260930;;652132

open lake forecast for lake huron
national weather service detroit/pontiac mi
930 pm edt mon may 25 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...a cold front slowly sags south across lake huron late
tuesday through wednesday, with breezy southwest winds ahead of 
the front. this front moves south across the rest of the area 
wednesday into wednesday night, as high pressure builds in from 
the north. varying winds are expected through the end of the week.


lhz361-260930-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
930 pm edt mon may 25 2026

.rest of tonight...south winds 5 to 10 knots increasing to 10 to
15 knots after midnight...then becoming southwest 15 to 20 knots
early in the morning. waves 1 to 3 feet building to 3 to 5 feet
early in the morning. 
.tuesday...southwest winds 15 to 20 knots becoming west 10 to
15 knots in the afternoon. waves 3 to 5 feet. 
.tuesday night...northwest winds 10 to 15 knots decreasing to
5 to 10 knots after midnight. waves 2 to 4 feet subsiding to 1 to
3 feet in the late evening and overnight. 
.wednesday...northwest winds 5 to 10 knots early in the morning
becoming light and variable...then becoming west 5 to 10 knots
early in the afternoon. waves 2 feet or less. 
.wednesday night...north winds 10 to 15 knots. waves 1 to 3 feet.
.thursday...north winds 5 to 10 knots becoming southwest 10 to
15 knots late in the afternoon...then becoming northwest 5 to
10 knots late in the evening. waves 2 feet or less. 
.friday...west winds 5 to 10 knots becoming northwest 10 to
15 knots . waves 1 to 3 feet. 
.saturday...north winds 10 to 15 knots decreasing to 5 to
10 knots in the late morning and early afternoon...then backing
to the west early in the evening veering to the northwest by
midnight. waves 1 to 3 feet. 


$$

fzus63 kmkx 260144
glflm 
expires:202605260915;;652407

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
844 pm cdt mon may 25 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...

high pressure around 30.2 inches will continue to slowly move east
of the region tonight. breezy south to southwest winds will 
continue into tuesday, while high pressure around 30.4 inches is 
expected to build toward eastern hudson bay tuesday into 
wednesday. 

the high will eventually push a cold front southward over lake 
michigan tuesday night and wednesday. winds will quickly shift 
northeasterly behind the front and become gusty wednesday into 
wednesday night. modest north to northeast winds should linger 
into thursday.

another potential cold front may shift southward across the lake 
on friday, as another high pressure system around 30.3 inches 
develops to the north of the region. this may bring another round 
of brisk north to northeast winds behind it.


lmz261-362-364-366-563-565-567-868-260915-
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-
844 pm cdt mon may 25 2026

sheboygan wi to pentwater mi north...

.rest of tonight...south winds to 30 kt becoming southwest. waves
4 to 6 ft occasionally to 8 ft. 
.tuesday...southwest winds to 30 kt becoming south 10 to 20 kt.
waves 3 to 5 ft subsiding to 2 to 4 ft. 
.tuesday night...south winds 10 to 20 kt backing to east 10 to
15 kt late in the evening, then becoming northeast after midnight
becoming northeast 5 to 10 kt late. waves 2 to 4 ft subsiding to
1 to 3 ft. 
.wednesday...northeast winds 10 to 15 kt becoming north 10 to
20 kt. waves 1 to 2 ft building to 3 to 5 ft. 
.wednesday night...north winds 15 to 25 kt becoming northeast
10 to 20 kt. waves 3 to 5 ft. 
.thursday...northeast winds 10 to 15 kt becoming north 10 to
20 kt. waves 3 to 5 ft. 
.thursday night...north winds 10 to 20 kt becoming west 5 to
10 kt. waves 2 to 4 ft subsiding to 1 to 2 ft. 
.friday...west winds 10 to 15 kt increasing to 10 to 20 kt. waves
1 to 2 ft. 
.saturday...northeast winds 10 to 15 kt increasing to 15 to
25 kt. waves 1 to 3 ft building to 2 to 4 ft.  

$$

fzus63 kmkx 260144
glflm 
expires:202605260915;;652408

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
844 pm cdt mon may 25 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...

high pressure around 30.2 inches will continue to slowly move east
of the region tonight. breezy south to southwest winds will 
continue into tuesday, while high pressure around 30.4 inches is 
expected to build toward eastern hudson bay tuesday into 
wednesday. 

the high will eventually push a cold front southward over lake 
michigan tuesday night and wednesday. winds will quickly shift 
northeasterly behind the front and become gusty wednesday into 
wednesday night. modest north to northeast winds should linger 
into thursday.

another potential cold front may shift southward across the lake 
on friday, as another high pressure system around 30.3 inches 
develops to the north of the region. this may bring another round 
of brisk north to northeast winds behind it.


lmz080-669-671-673-675-777-779-870-872-874-876-878-260915-
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-
844 pm cdt mon may 25 2026

sheboygan wi to pentwater mi south...

.rest of tonight...south winds 10 to 20 kt becoming southwest.
waves 3 to 5 ft. 
.tuesday...southwest winds 10 to 20 kt becoming south. waves 2 to
4 ft. 
.tuesday night...south winds 10 to 20 kt diminishing to 10 to
15 kt late in the evening, then becoming southwest 5 to 10 kt
overnight. waves 2 to 4 ft subsiding to 1 to 3 ft. 
.wednesday...northwest winds 10 to 15 kt becoming north 10 to
20 kt. waves 1 to 2 ft building to 3 to 5 ft. 
.wednesday night...north winds 15 to 25 kt diminishing to 10 to
20 kt. waves 4 to 6 ft occasionally to 8 ft. 
.thursday...northeast winds 10 to 15 kt becoming north 10 to
20 kt. waves 3 to 5 ft. 
.thursday night...north winds 10 to 20 kt becoming northeast 5 to
10 kt. waves 3 to 5 ft subsiding to 2 to 4 ft. 
.friday...north winds 5 to 10 kt increasing to 10 to 15 kt. waves
1 to 3 ft. 
.saturday...northeast winds 10 to 15 kt becoming north 15 to
25 kt. waves 1 to 3 ft building to 2 to 4 ft.  

$$

fzus63 kmqt 260201
glfls 
expires:202605260800;;652684

open lake forecast for lake superior
national weather service marquette mi
1000 pm edt mon may 25 2026

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 29.6 inch low over northern ontario drags a 29.8 inch trough 
across lake superior tonight. by tuesday night, a 30.4 inch high 
over the western shores of hudson bay extends weak ridging of 30.1 
inches over lake superior. the parent high shifts south over the 
lake on thursday at 30.3 inches. on friday, the high weakens to 
around 30.1 inches as it continues south towards chicago. however, 
another ridge pushing in from hudson bay brings 30.1 inch ridging 
back over lake superior late on friday, with the ridging increasing 
once again to 30.3 inches by saturday as the parent high over hudson 
bay pushes south.



lsz162-260800-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
1000 pm edt mon may 25 2026 /900 pm cdt mon may 25 2026/

.rest of tonight...south winds 10 to 20 knots becoming southwest
5 to 15 knots after midnight, then veering west late. a slight
chance of showers by midnight. waves calm to 2 feet. 
.tuesday...north winds 5 to 15 knots veering northeast in the
afternoon. waves calm to 2 feet. 
.tuesday night...northeast winds 5 to 15 knots. waves calm to
2 feet. 
.wednesday...northeast winds 10 to 20 knots. waves building to
2 to 4 feet. 
.wednesday night...northeast winds 10 to 20 knots diminishing to
5 to 15 knots after midnight. waves subsiding to calm to 2 feet. 
.thursday...northeast winds 5 to 15 knots. waves calm to 2 feet. 
.thursday night...north winds less than 10 knots becoming west
5 to 15 knots after midnight. waves calm to 2 feet. 
.friday...south winds 5 to 15 knots backing northeast. waves calm
to 2 feet. 
.saturday...northeast winds 10 to 20 knots. waves building to
1 to 3 feet, then subsiding to calm to 2 feet. 

$$

fzus63 kmqt 260201
glfls 
expires:202605260800;;652685

open lake forecast for lake superior
national weather service marquette mi
1000 pm edt mon may 25 2026

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 29.6 inch low over northern ontario drags a 29.8 inch trough 
across lake superior tonight. by tuesday night, a 30.4 inch high 
over the western shores of hudson bay extends weak ridging of 30.1 
inches over lake superior. the parent high shifts south over the 
lake on thursday at 30.3 inches. on friday, the high weakens to 
around 30.1 inches as it continues south towards chicago. however, 
another ridge pushing in from hudson bay brings 30.1 inch ridging 
back over lake superior late on friday, with the ridging increasing 
once again to 30.3 inches by saturday as the parent high over hudson 
bay pushes south.



lsz263-260800-
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-
1000 pm edt mon may 25 2026

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

$$

fzus63 kmqt 260201
glfls 
expires:202605260800;;652686

open lake forecast for lake superior
national weather service marquette mi
1000 pm edt mon may 25 2026

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 29.6 inch low over northern ontario drags a 29.8 inch trough 
across lake superior tonight. by tuesday night, a 30.4 inch high 
over the western shores of hudson bay extends weak ridging of 30.1 
inches over lake superior. the parent high shifts south over the 
lake on thursday at 30.3 inches. on friday, the high weakens to 
around 30.1 inches as it continues south towards chicago. however, 
another ridge pushing in from hudson bay brings 30.1 inch ridging 
back over lake superior late on friday, with the ridging increasing 
once again to 30.3 inches by saturday as the parent high over hudson 
bay pushes south.



lsz264-260800-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
1000 pm edt mon may 25 2026

.rest of tonight...southwest winds 10 to 20 knots increasing to
15 to 25 knots after midnight, then becoming west 10 to 20 knots
late. a slight chance of thunderstorms by midnight. a chance of
showers. waves calm to 2 feet building to 2 to 4 feet, then
subsiding to 1 to 3 feet. 
.tuesday...northwest winds 10 to 20 knots becoming west 5 to
15 knots in the afternoon, then backing southwest late. waves
subsiding to calm to 2 feet. 
.tuesday night...south winds less than 10 knots backing east
after midnight, then becoming northeast 5 to 15 knots late. waves
calm to 2 feet. 
.wednesday...northeast winds 5 to 15 knots backing north by mid
afternoon. waves calm to 2 feet. 
.wednesday night...northeast winds 5 to 15 knots. waves calm to
2 feet. 
.thursday...east winds less than 10 knots becoming south 5 to
15 knots by mid afternoon. waves calm to 2 feet. 
.thursday night...south winds 5 to 15 knots veering west after
midnight. waves calm to 2 feet. 
.friday...west winds 5 to 15 knots backing east. waves calm to
2 feet. 
.saturday...east winds 5 to 15 knots backing north. waves calm to
2 feet. 

$$

fzus63 kmqt 260201
glfls 
expires:202605260800;;652687

open lake forecast for lake superior
national weather service marquette mi
1000 pm edt mon may 25 2026

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 29.6 inch low over northern ontario drags a 29.8 inch trough 
across lake superior tonight. by tuesday night, a 30.4 inch high 
over the western shores of hudson bay extends weak ridging of 30.1 
inches over lake superior. the parent high shifts south over the 
lake on thursday at 30.3 inches. on friday, the high weakens to 
around 30.1 inches as it continues south towards chicago. however, 
another ridge pushing in from hudson bay brings 30.1 inch ridging 
back over lake superior late on friday, with the ridging increasing 
once again to 30.3 inches by saturday as the parent high over hudson 
bay pushes south.



lsz265-260800-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
1000 pm edt mon may 25 2026

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

$$

fzus63 kmqt 260201
glfls 
expires:202605260800;;652688

open lake forecast for lake superior
national weather service marquette mi
1000 pm edt mon may 25 2026

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 29.6 inch low over northern ontario drags a 29.8 inch trough 
across lake superior tonight. by tuesday night, a 30.4 inch high 
over the western shores of hudson bay extends weak ridging of 30.1 
inches over lake superior. the parent high shifts south over the 
lake on thursday at 30.3 inches. on friday, the high weakens to 
around 30.1 inches as it continues south towards chicago. however, 
another ridge pushing in from hudson bay brings 30.1 inch ridging 
back over lake superior late on friday, with the ridging increasing 
once again to 30.3 inches by saturday as the parent high over hudson 
bay pushes south.



lsz266-260800-
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-
1000 pm edt mon may 25 2026

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

$$

fzus63 kmqt 260201
glfls 
expires:202605260800;;652689

open lake forecast for lake superior
national weather service marquette mi
1000 pm edt mon may 25 2026

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 29.6 inch low over northern ontario drags a 29.8 inch trough 
across lake superior tonight. by tuesday night, a 30.4 inch high 
over the western shores of hudson bay extends weak ridging of 30.1 
inches over lake superior. the parent high shifts south over the 
lake on thursday at 30.3 inches. on friday, the high weakens to 
around 30.1 inches as it continues south towards chicago. however, 
another ridge pushing in from hudson bay brings 30.1 inch ridging 
back over lake superior late on friday, with the ridging increasing 
once again to 30.3 inches by saturday as the parent high over hudson 
bay pushes south.



lsz267-260800-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
1000 pm edt mon may 25 2026

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

$$