fzus61 kbuf 272002
glflo 
expires:202605280300;;750119

open lake forecast for lake ontario
national weather service buffalo ny
402 pm edt wed may 27 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 30.2 inch high over ontario will expand southeastward 
across the lower great lakes thursday and thursday night, before 
settling into the ohio valley friday. a 29.6 inch low will then make 
its way southeastward across quebec friday and new england friday 
night and saturday, with its trailing cold front crossing the lake 
late friday or friday night. another 30.2 inch high is then forecast 
to build across the great lakes later saturday through sunday.


loz062-280300-
lake ontario open waters from the niagara river to hamlin beach-
402 pm edt wed may 27 2026

.tonight...west winds 10 to 15 knots becoming north. waves 1 to
2 feet. 
.thursday...north winds 5 to 10 knots becoming west. a chance of
showers early. waves 1 to 2 feet. 
.thursday night...west winds 5 to 10 knots. waves 1 to 2 feet. 
.friday...west winds 5 to 15 knots increasing to 15 to 20 knots.
a chance of showers in the afternoon. waves 1 to 3 feet building
to 2 to 4 feet. 
.friday night...west winds 15 to 20 knots becoming north 10 to
15 knots. a chance of showers in the evening. waves 2 to 4 feet. 
.saturday...north winds 5 to 15 knots becoming west 10 knots or
less. waves 2 feet or less. 
.sunday...west winds 5 to 10 knots becoming northwest. waves
2 feet or less. 
.monday...north winds 10 knots or less becoming northwest. waves
1 foot or less. 

$$

fzus61 kbuf 272002
glflo 
expires:202605280300;;750120

open lake forecast for lake ontario
national weather service buffalo ny
402 pm edt wed may 27 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 30.2 inch high over ontario will expand southeastward 
across the lower great lakes thursday and thursday night, before 
settling into the ohio valley friday. a 29.6 inch low will then make 
its way southeastward across quebec friday and new england friday 
night and saturday, with its trailing cold front crossing the lake 
late friday or friday night. another 30.2 inch high is then forecast 
to build across the great lakes later saturday through sunday.


loz063>065-280300-
lake ontario open waters from hamlin beach to the saint lawrence
river-
402 pm edt wed may 27 2026

.tonight...west winds 5 to 15 knots becoming north. waves 2 feet
or less. 
.thursday...north winds 10 to 15 knots becoming west. a chance of
showers early. waves 1 to 2 feet. 
.thursday night...west winds 5 to 10 knots. waves 2 feet or less.
.friday...west winds 5 to 15 knots increasing to 15 to 20 knots.
a chance of showers in the afternoon. waves 2 feet or less
building to 3 to 5 feet. 
.friday night...west winds 15 to 20 knots becoming northwest. a
chance of showers. waves 3 to 5 feet. 
.saturday...north winds 15 to 20 knots becoming west and
diminishing to 5 to 10 knots. waves 3 to 5 feet subsiding to
2 feet or less. 
.sunday...west winds 5 to 10 knots. waves 2 feet or less. 
.monday...north winds 10 knots or less becoming northwest. waves
1 foot or less. 

$$

fzus61 kcle 280116
glfle 
expires:202605280830;;762386

open lake forecast for lake erie
national weather service cleveland oh
916 pm edt wed may 27 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...
a weak cold front continues moving generally southward across lake
erie and should exit the rest of the lake by midnight tonight.
behind the front, a high pressure ridge averaging 30.10 inches
builds from the northern great lakes before another cold front
sweeps southward across lake erie friday night. in the wake of
this front, another ridge averaging 30.10 inches builds from the
hudson bay area through this monday.


lez061-166>169-280830-
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-
916 pm edt wed may 27 2026

.overnight...north winds 5 to 10 knots becoming northeast.
waves 2 feet or less. 
.thursday...north winds 5 to 15 knots becoming northwest. waves
1 to 3 feet. 
.thursday night...northwest winds 10 knots or less becoming west.
waves 1 foot or less. 
.friday...west winds 10 knots or less becoming southwest 10 to
15 knots. waves 1 to 3 feet. 
.friday night...southwest winds 10 to 15 knots becoming northeast
15 to 20 knots. waves 1 to 3 feet. 
.saturday...northeast winds 15 to 20 knots becoming east 5 to
15 knots. waves 1 to 3 feet. 
.sunday...northeast winds 10 knots or less becoming northwest.
waves 2 feet or less. 
.monday...north winds 5 to 10 knots. waves 2 feet or less. 

$$

fzus61 kcle 280116
glfle 
expires:202605280830;;762385

open lake forecast for lake erie
national weather service cleveland oh
916 pm edt wed may 27 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...
a weak cold front continues moving generally southward across lake
erie and should exit the rest of the lake by midnight tonight.
behind the front, a high pressure ridge averaging 30.10 inches
builds from the northern great lakes before another cold front
sweeps southward across lake erie friday night. in the wake of
this front, another ridge averaging 30.10 inches builds from the
hudson bay area through this monday.


lez164-165-280830-
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-
916 pm edt wed may 27 2026

.overnight...northeast winds 5 to 10 knots. waves 2 feet or
less. 
.thursday...north winds 5 to 15 knots. waves 1 to 3 feet. 
.thursday night...north winds 10 knots or less. waves 2 feet or
less. 
.friday...light and variable winds becoming west 5 to 10 knots.
waves 1 foot or less. 
.friday night...southwest winds 5 to 15 knots becoming north.
waves 2 feet or less building to 2 to 3 feet. 
.saturday...northeast winds 5 to 15 knots becoming east. waves
2 to 3 feet. 
.sunday...northeast winds 10 knots or less becoming west. waves
2 feet or less. 
.monday...north winds 5 to 10 knots. waves 1 to 2 feet. 

$$

fzus61 kcle 280116
glfle 
expires:202605280830;;762384

open lake forecast for lake erie
national weather service cleveland oh
916 pm edt wed may 27 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...
a weak cold front continues moving generally southward across lake
erie and should exit the rest of the lake by midnight tonight.
behind the front, a high pressure ridge averaging 30.10 inches
builds from the northern great lakes before another cold front
sweeps southward across lake erie friday night. in the wake of
this front, another ridge averaging 30.10 inches builds from the
hudson bay area through this monday.


lez162-163-280830-
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-
916 pm edt wed may 27 2026

.overnight...northeast winds 5 to 15 knots. waves 2 feet or
less. 
.thursday...north winds 10 to 15 knots becoming northeast. waves
1 to 3 feet. 
.thursday night...northeast winds 5 to 15 knots diminishing to
less than 10 knots. waves 2 feet or less. 
.friday...light and variable winds becoming southwest 5 to
10 knots. waves 1 foot or less. 
.friday night...west winds 5 to 15 knots becoming north. waves
2 feet or less. 
.saturday...northeast winds 15 to 20 knots diminishing to 5 to
15 knots. waves 1 to 3 feet. 
.sunday...east winds 5 to 10 knots becoming southwest. waves
2 feet or less. 
.monday...north winds 5 to 10 knots. waves 2 feet or less. 

$$

fzus63 kdtx 271937
glfsc 
expires:202605280345;;749193

lake st clair forecast
national weather service detroit/pontiac mi
337 pm edt wed may 27 2026

waves are the significant wave height - the average of the highest
1/3 of the wave spectrum. occasional wave height is the average of
the highest 1/10 of the wave spectrum.

.synopsis...high pressure, 30.30 inches, will expand across
northern ontario tonight and thursday. this will drive a little
cooler air across the region and cause an uptick in winds and
waves in the nearshore. the high will drift to the southern great
lakes thursday night into friday, sustaining dry conditions
across the region. a secondary high pressure system is forecast
to expand from hudson bay friday to lake huron saturday. this
will drive a secondary push of gusty northeast winds, likely
increasing winds and waves in the nearshore areas.


lcz460-280345-
lake st clair-
337 pm edt wed may 27 2026

.tonight...north winds 5 to 10 knots. mostly clear. waves 2 feet or
less.
.thursday...north winds 10 to 15 knots increasing to 15 to 20 knots
in the late morning and early afternoon...then becoming northeast 10
to 15 knots late in the afternoon. sunny. waves 1 to 3 feet.
.thursday night...northeast winds 10 to 15 knots becoming north 5 to
10 knots in the late evening and overnight. clear. waves 2 feet or
less.
.friday...light and variable winds becoming west 5 to 10 knots in
the late morning and afternoon. sunny. waves 2 feet or less.
.friday night...northwest winds 10 to 15 knots veering to the
northeast after midnight. mostly clear. waves 2 feet or less.
.saturday...northeast winds 10 to 15 knots. clear. waves 2 feet or
less.
.sunday...east winds 5 to 10 knots. mostly clear. waves 2 feet or
less.
.monday...north winds 10 to 15 knots. mostly clear. waves 2 feet or
less.

$$

fzus63 kdtx 271936
glflh 
expires:202605280345;;749171

open lake forecast for lake huron
national weather service detroit/pontiac mi
336 pm edt wed may 27 2026

for waters beyond five nautical miles off shore on lake huron

waves are the significant wave height - the average of the highest
1/3 of the wave spectrum. occasional wave height is the average of
the highest 1/10 of the wave spectrum.

.synopsis...high pressure, 30.30 inches, will expand across
northern ontario tonight and thursday. this will drive a little
cooler air across the region and cause an uptick in winds and
waves in the nearshore. the high will drift to the southern great
lakes thursday night into friday, sustaining dry conditions
across the region. a secondary high pressure system is forecast
to expand from hudson bay friday to lake huron saturday. this
will drive a secondary push of gusty northeast winds, likely
increasing winds and waves in the nearshore areas.


lhz363-462>464-280345-
lake huron from sturgeon point to alabaster mi beyond 5nm off
shore-
lake huron from port austin to harbor beach beyond 5nm off shore-
lake huron from harbor beach to port sanilac beyond 5nm off shore-
lake huron from port sanilac to port huron beyond 5nm off shore-
336 pm edt wed may 27 2026

.tonight...light and variable winds becoming north 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 afternoon. waves 3 to 5 feet. 
.thursday night...north winds 5 to 10 knots backing to the
southwest in the late evening and overnight. waves 3 to 5 feet
subsiding to 1 to 3 feet in the late evening and overnight. 
.friday...southwest winds 5 to 10 knots increasing to 10 to
15 knots in the late morning and afternoon. waves 1 to 3 feet. 
.friday night...west winds 10 to 15 knots veering to the north in
the late evening and overnight. waves 2 to 4 feet. 
.saturday...northeast winds 10 to 15 knots becoming light and
variable. waves 2 to 4 feet subsiding to 1 to 3 feet late in the
evening. 
.sunday...light and variable winds becoming southwest 5 to
10 knots until early evening...then veering to the west by
midnight. waves 2 feet or less. 
.monday...north winds 5 to 10 knots. waves 1 to 3 feet. 


$$

fzus63 kdtx 271936
glflh 
expires:202605280345;;749170

open lake forecast for lake huron
national weather service detroit/pontiac mi
336 pm edt wed may 27 2026

for waters beyond five nautical miles off shore on lake huron

waves are the significant wave height - the average of the highest
1/3 of the wave spectrum. occasional wave height is the average of
the highest 1/10 of the wave spectrum.

.synopsis...high pressure, 30.30 inches, will expand across
northern ontario tonight and thursday. this will drive a little
cooler air across the region and cause an uptick in winds and
waves in the nearshore. the high will drift to the southern great
lakes thursday night into friday, sustaining dry conditions
across the region. a secondary high pressure system is forecast
to expand from hudson bay friday to lake huron saturday. this
will drive a secondary push of gusty northeast winds, likely
increasing winds and waves in the nearshore areas.


lhz361-362-280345-
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-
336 pm edt wed may 27 2026

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


$$

fzus63 kmkx 272019
glflm 
expires:202605280315;;751448

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
319 pm cdt wed may 27 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 30.3 inches will continue to build
southward into the great lakes this evening through tonight,
bringing a cold front southward through tonight. behind this
front, gusty northerly winds will around 25 kt are expected. 
winds will gradually diminish through thursday. high pressure 
remains in place through the weekend, with a few additional weak 
cold fronts bringing brisk northeasterly winds friday night and 
sunday night. high pressure generally remains in place through 
early next week, with light and variable winds expected.


lmz080-669-671-673-675-777-779-870-872-874-876-878-280315-
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-
319 pm cdt wed may 27 2026

sheboygan wi to pentwater mi south...

.tonight...north winds 15 to 25 kt. waves 2 to 4 ft building to
4 to 6 ft occasionally to 8 ft. 
.thursday...northeast winds 10 to 20 kt becoming north 15 to
25 kt. waves 4 to 6 ft occasionally to 8 ft subsiding to 3 to
5 ft. 
.thursday night...north winds 10 to 20 kt becoming northeast
10 to 15 kt after midnight, then becoming east late. waves 3 to
5 ft subsiding to 1 to 3 ft. 
.friday...southwest winds 5 to 10 kt becoming south. waves 1 to
2 ft. 
.friday night...southeast winds 5 to 10 kt becoming east. waves
1 to 2 ft. 
.saturday...east winds 10 to 15 kt becoming northeast 10 to
20 kt. waves 1 to 3 ft. 
.saturday night...northeast winds 10 to 20 kt becoming east 10 to
15 kt. waves 2 to 4 ft. 
.sunday...southeast winds 5 to 10 kt backing to northeast 10 to
15 kt. waves 1 to 3 ft. 
.monday...north winds 10 to 15 kt increasing to 15 to 25 kt.
waves 1 to 2 ft building to 2 to 4 ft.  

$$

fzus63 kmkx 272019
glflm 
expires:202605280315;;751447

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
319 pm cdt wed may 27 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 30.3 inches will continue to build
southward into the great lakes this evening through tonight,
bringing a cold front southward through tonight. behind this
front, gusty northerly winds will around 25 kt are expected. 
winds will gradually diminish through thursday. high pressure 
remains in place through the weekend, with a few additional weak 
cold fronts bringing brisk northeasterly winds friday night and 
sunday night. high pressure generally remains in place through 
early next week, with light and variable winds expected.


lmz261-362-364-366-563-565-567-868-280315-
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-
319 pm cdt wed may 27 2026

sheboygan wi to pentwater mi north...

.tonight...north winds 15 to 25 kt becoming northeast 10 to
20 kt. waves 2 to 4 ft building to 3 to 5 ft. 
.thursday...northeast winds 10 to 20 kt becoming north 15 to
25 kt. waves 2 to 4 ft. 
.thursday night...northwest winds 10 to 20 kt diminishing to 5 to
10 kt late in the evening, then becoming west after midnight
becoming west 5 to 10 kt late. waves 2 to 4 ft subsiding to 1 to
2 ft. 
.friday...southwest winds 10 to 20 kt. waves 1 to 3 ft. 
.friday night...southeast winds 10 to 20 kt backing to east.
waves 1 to 3 ft. 
.saturday...east winds 10 to 20 kt becoming northeast 15 to
25 kt. waves 2 to 4 ft. 
.saturday night...northeast winds 15 to 25 kt veering to
southeast 5 to 10 kt. waves 2 to 4 ft. 
.sunday...south winds 5 to 10 kt becoming southwest 10 to 15 kt.
waves 1 to 2 ft. 
.monday...northeast winds 10 to 15 kt increasing to 15 to 25 kt.
waves 1 to 2 ft building to 2 to 4 ft.  

$$

fzus63 kmqt 272001
glfls 
expires:202605280800;;750002

open lake forecast for lake superior
national weather service marquette mi
401 pm edt wed may 27 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... 

ridging of 30.2 inches persists over lake superior today, extending 
from a 30.3 inch high centered over hudson bay. on thursday, this 
parent high shifts southward over the lake at 30.3 inches. the high 
center weakens to around 30.1 inches on friday as it continues its 
southerly propagation towards lower michigan, causing pressure to 
decrease to 29.9 inches over lake superior. following this, a second 
ridge pushing in from hudson bay brings 30.1 inch ridging back over 
the lake late on friday. pressure subsequently increases to 30.3 
inches by saturday midday as this second parent high over hudson bay 
propagates south. high pressure persists over lake superior through 
early next week.



lsz263-280800-
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-
401 pm edt wed may 27 2026

.late this afternoon...east winds 15 to 25 knots. waves 2 to
4 feet. 
.tonight...northeast winds 5 to 15 knots diminishing to less than
10 knots late. waves subsiding to calm to 2 feet. 
.thursday...east winds less than 10 knots becoming northeast 5 to
15 knots in the afternoon. waves calm to 2 feet. 
.thursday night...northeast winds less than 10 knots becoming
southwest 5 to 15 knots after midnight. waves calm to 2 feet. 
.friday...southwest winds 5 to 15 knots. a slight chance of
showers and thunderstorms by mid afternoon. waves building to
1 to 3 feet, then subsiding to calm to 2 feet. 
.friday night...east winds 5 to 15 knots increasing to 10 to
20 knots after midnight. waves building to 2 to 4 feet. 
.saturday...east winds 10 to 20 knots backing northeast by mid
afternoon. waves 2 to 4 feet. 
.saturday night...east winds 10 to 20 knots diminishing to 5 to
15 knots after midnight. waves subsiding to calm to 2 feet. 
.sunday...northeast winds 5 to 15 knots. waves calm to 2 feet. 
.monday...northeast winds 5 to 15 knots. waves building to 1 to
3 feet, then subsiding to calm to 2 feet. 

$$

fzus63 kmqt 272001
glfls 
expires:202605280800;;750001

open lake forecast for lake superior
national weather service marquette mi
401 pm edt wed may 27 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... 

ridging of 30.2 inches persists over lake superior today, extending 
from a 30.3 inch high centered over hudson bay. on thursday, this 
parent high shifts southward over the lake at 30.3 inches. the high 
center weakens to around 30.1 inches on friday as it continues its 
southerly propagation towards lower michigan, causing pressure to 
decrease to 29.9 inches over lake superior. following this, a second 
ridge pushing in from hudson bay brings 30.1 inch ridging back over 
the lake late on friday. pressure subsequently increases to 30.3 
inches by saturday midday as this second parent high over hudson bay 
propagates south. high pressure persists over lake superior through 
early next week.



lsz162-280800-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
401 pm edt wed may 27 2026 /301 pm cdt wed may 27 2026/

.late this afternoon...northeast winds 15 to 25 knots. waves 2 to
4 feet. 
.tonight...northeast winds 10 to 20 knots diminishing to 5 to
15 knots after midnight. waves subsiding to calm to 2 feet. 
.thursday...east winds 5 to 15 knots backing northeast in the
afternoon. waves calm to 2 feet. 
.thursday night...north winds less than 10 knots increasing to
5 to 15 knots after midnight, then backing southwest late. waves
calm to 2 feet. 
.friday...southwest winds 5 to 15 knots. a slight chance of
showers and thunderstorms by mid afternoon. waves calm to 2 feet.
.friday night...east winds 5 to 15 knots becoming northeast 15 to
25 knots after midnight. waves building to 2 to 4 feet. 
.saturday...northeast winds 15 to 25 knots. waves building to
3 to 5 feet occasionally to 7 feet, then subsiding to 2 to
4 feet. 
.saturday night...northeast winds 10 to 20 knots diminishing to
5 to 15 knots after midnight. waves subsiding to calm to 2 feet. 
.sunday...northeast winds 5 to 15 knots. waves calm to 2 feet. 
.monday...northeast winds 10 to 20 knots diminishing to 5 to
15 knots. waves building to 1 to 3 feet, then subsiding to calm
to 2 feet. 

$$

fzus63 kmqt 272001
glfls 
expires:202605280800;;750003

open lake forecast for lake superior
national weather service marquette mi
401 pm edt wed may 27 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... 

ridging of 30.2 inches persists over lake superior today, extending 
from a 30.3 inch high centered over hudson bay. on thursday, this 
parent high shifts southward over the lake at 30.3 inches. the high 
center weakens to around 30.1 inches on friday as it continues its 
southerly propagation towards lower michigan, causing pressure to 
decrease to 29.9 inches over lake superior. following this, a second 
ridge pushing in from hudson bay brings 30.1 inch ridging back over 
the lake late on friday. pressure subsequently increases to 30.3 
inches by saturday midday as this second parent high over hudson bay 
propagates south. high pressure persists over lake superior through 
early next week.



lsz264-280800-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
401 pm edt wed may 27 2026

.late this afternoon...north winds 5 to 15 knots. waves calm to
2 feet. 
.tonight...northeast winds 5 to 15 knots backing north after
midnight, then diminishing to less than 10 knots late. waves calm
to 2 feet. 
.thursday...north winds less than 10 knots becoming south 5 to
15 knots in the afternoon. waves calm to 2 feet. 
.thursday night...south winds 5 to 15 knots veering southwest
after midnight. waves calm to 2 feet. 
.friday...west winds 10 to 20 knots diminishing to 5 to 15 knots
by mid afternoon. waves building to 1 to 3 feet, then subsiding
to calm to 2 feet. 
.friday night...east winds 5 to 15 knots increasing to 10 to
20 knots after midnight. waves building to 1 to 3 feet. 
.saturday...east winds 5 to 15 knots. waves subsiding to calm to
2 feet. 
.saturday night...east winds 5 to 15 knots becoming southeast
less than 10 knots after midnight. waves calm to 2 feet. 
.sunday...east winds less than 10 knots becoming northeast 5 to
15 knots. waves calm to 2 feet. 
.monday...east winds 5 to 15 knots becoming north less than
10 knots. waves calm to 2 feet. 

$$

fzus63 kmqt 272001
glfls 
expires:202605280800;;750005

open lake forecast for lake superior
national weather service marquette mi
401 pm edt wed may 27 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... 

ridging of 30.2 inches persists over lake superior today, extending 
from a 30.3 inch high centered over hudson bay. on thursday, this 
parent high shifts southward over the lake at 30.3 inches. the high 
center weakens to around 30.1 inches on friday as it continues its 
southerly propagation towards lower michigan, causing pressure to 
decrease to 29.9 inches over lake superior. following this, a second 
ridge pushing in from hudson bay brings 30.1 inch ridging back over 
the lake late on friday. pressure subsequently increases to 30.3 
inches by saturday midday as this second parent high over hudson bay 
propagates south. high pressure persists over lake superior through 
early next week.



lsz266-280800-
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-
401 pm edt wed may 27 2026

.late this afternoon...north winds 10 to 20 knots. waves 1 to
3 feet building to 2 to 4 feet. 
.tonight...north winds 10 to 20 knots veering northeast after
midnight, then becoming north 5 to 15 knots late. waves subsiding
to calm to 2 feet. 
.thursday...north winds 5 to 15 knots diminishing to less than
10 knots in the afternoon, then backing west late. waves calm to
2 feet. 
.thursday night...south winds less than 10 knots increasing to
5 to 15 knots after midnight, then becoming west 10 to 20 knots
late. waves calm to 2 feet. 
.friday...west winds 10 to 20 knots becoming north 5 to 15 knots
by mid afternoon. waves building to 1 to 3 feet, then subsiding
to calm to 2 feet. 
.friday night...northeast winds 10 to 20 knots veering east after
midnight. waves building to 2 to 4 feet. 
.saturday...east winds 10 to 20 knots. waves subsiding to calm to
2 feet. 
.saturday night...east winds 5 to 15 knots veering south after
midnight. waves calm to 2 feet. 
.sunday...north winds 5 to 15 knots. waves calm to 2 feet. 
.monday...northeast winds 5 to 15 knots backing north. waves calm
to 2 feet. 

$$

fzus63 kmqt 272001
glfls 
expires:202605280800;;750006

open lake forecast for lake superior
national weather service marquette mi
401 pm edt wed may 27 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... 

ridging of 30.2 inches persists over lake superior today, extending 
from a 30.3 inch high centered over hudson bay. on thursday, this 
parent high shifts southward over the lake at 30.3 inches. the high 
center weakens to around 30.1 inches on friday as it continues its 
southerly propagation towards lower michigan, causing pressure to 
decrease to 29.9 inches over lake superior. following this, a second 
ridge pushing in from hudson bay brings 30.1 inch ridging back over 
the lake late on friday. pressure subsequently increases to 30.3 
inches by saturday midday as this second parent high over hudson bay 
propagates south. high pressure persists over lake superior through 
early next week.



lsz267-280800-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
401 pm edt wed may 27 2026

.late this afternoon...northwest winds 15 to 25 knots. waves 1 to
3 feet building to 2 to 4 feet. 
.tonight...north winds 15 to 25 knots diminishing to 10 to
20 knots after midnight. waves subsiding to calm to 2 feet. 
.thursday...north winds 5 to 15 knots backing northwest in the
afternoon. waves calm to 2 feet. 
.thursday night...west winds 5 to 15 knots backing southwest
after midnight. waves calm to 2 feet. 
.friday...west winds 5 to 15 knots veering northwest by mid
afternoon. waves calm to 2 feet. 
.friday night...northeast winds 10 to 20 knots veering east after
midnight. waves building to 1 to 3 feet. 
.saturday...east winds 5 to 15 knots becoming northeast 10 to
20 knots by mid afternoon. waves subsiding to calm to 2 feet. 
.saturday night...northeast winds 5 to 15 knots veering southwest
after midnight. waves calm to 2 feet. 
.sunday...northwest winds 5 to 15 knots veering northeast. waves
calm to 2 feet. 
.monday...northeast winds 10 to 20 knots becoming north 5 to
15 knots. waves calm to 2 feet. 

$$

fzus63 kmqt 272001
glfls 
expires:202605280800;;750004

open lake forecast for lake superior
national weather service marquette mi
401 pm edt wed may 27 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... 

ridging of 30.2 inches persists over lake superior today, extending 
from a 30.3 inch high centered over hudson bay. on thursday, this 
parent high shifts southward over the lake at 30.3 inches. the high 
center weakens to around 30.1 inches on friday as it continues its 
southerly propagation towards lower michigan, causing pressure to 
decrease to 29.9 inches over lake superior. following this, a second 
ridge pushing in from hudson bay brings 30.1 inch ridging back over 
the lake late on friday. pressure subsequently increases to 30.3 
inches by saturday midday as this second parent high over hudson bay 
propagates south. high pressure persists over lake superior through 
early next week.



lsz265-280800-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
401 pm edt wed may 27 2026

.late this afternoon...north winds 10 to 20 knots. waves calm to
2 feet. 
.tonight...north winds 10 to 20 knots becoming northeast 5 to
15 knots after midnight, then backing north late. waves building
to 1 to 3 feet, then subsiding to calm to 2 feet. 
.thursday...north winds 5 to 15 knots veering east in the
afternoon. waves calm to 2 feet. 
.thursday night...southeast winds 5 to 15 knots veering south
after midnight, then becoming west 10 to 20 knots late. waves
calm to 2 feet. 
.friday...west winds 10 to 20 knots veering north by mid
afternoon. waves building to 1 to 3 feet, then subsiding to calm
to 2 feet. 
.friday night...east winds 5 to 15 knots increasing to 10 to
20 knots after midnight. waves building to 2 to 4 feet. 
.saturday...east winds 10 to 20 knots. waves subsiding to 1 to
3 feet. 
.saturday night...southeast winds 5 to 15 knots. waves subsiding
to calm to 2 feet. 
.sunday...northeast winds 5 to 15 knots. waves calm to 2 feet. 
.monday...northeast winds 5 to 15 knots backing north. waves calm
to 2 feet. 

$$