fzus61 kbuf 202002
glflo 
expires:202606210300;;087215

open lake forecast for lake ontario
national weather service buffalo ny
402 pm edt sat jun 20 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...an unseasonably strong 29.2 inch low will linger over 
the canadian maritimes through this evening before exiting eastward 
over the atlantic. a weak ridge of high pressure averaging 29.9 
inches will then build over the great lakes tonight through 
tomorrow. a 29.7 inch low is then forecast to move south of the 
lower great lakes monday and monday night, before moving off the new 
england coast by tuesday. a broad area of high pressure averaging 
30.1 inches will advance over the eastern great lakes region 
wednesday and thursday of next week.


loz063>065-210300-
lake ontario open waters from hamlin beach to the saint lawrence
river-
402 pm edt sat jun 20 2026

.tonight...west winds 15 to 20 knots diminishing to 5 to
10 knots. a chance of showers early. a chance of showers late.
waves 3 to 5 feet subsiding to 1 to 3 feet. 
.sunday...west winds 5 to 10 knots. waves 2 feet or less. 
.sunday night...west winds 10 knots or less becoming south. waves
1 foot or less. 
.monday...southeast winds 5 to 10 knots. showers likely. waves
1 foot or less. 
.monday night...east winds 5 to 10 knots becoming north. showers
likely in the evening, then a chance of showers overnight. waves
1 foot or less. 
.tuesday...northwest winds 5 to 10 knots. waves 2 feet or less. 
.wednesday...west winds 10 knots or less becoming south. a chance
of showers wednesday night. waves 1 foot or less. 
.thursday...southeast winds 10 knots or less becoming southwest.
a chance of showers during the day, then showers likely thursday
night. waves 1 foot or less. 

$$

fzus61 kbuf 202002
glflo 
expires:202606210300;;087214

open lake forecast for lake ontario
national weather service buffalo ny
402 pm edt sat jun 20 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...an unseasonably strong 29.2 inch low will linger over 
the canadian maritimes through this evening before exiting eastward 
over the atlantic. a weak ridge of high pressure averaging 29.9 
inches will then build over the great lakes tonight through 
tomorrow. a 29.7 inch low is then forecast to move south of the 
lower great lakes monday and monday night, before moving off the new 
england coast by tuesday. a broad area of high pressure averaging 
30.1 inches will advance over the eastern great lakes region 
wednesday and thursday of next week.


loz062-210300-
lake ontario open waters from the niagara river to hamlin beach-
402 pm edt sat jun 20 2026

.tonight...west winds 5 to 15 knots becoming northwest 10 knots
or less. a chance of showers after midnight. waves 1 to 3 feet
subsiding to 1 foot or less. 
.sunday...west winds 5 to 10 knots becoming southwest. waves
1 foot or less. 
.sunday night...west winds less than 10 knots becoming southeast.
waves 1 foot or less. 
.monday...east winds 10 knots or less increasing to 10 to
15 knots. a chance of showers. waves 2 feet or less. 
.monday night...east winds 5 to 15 knots becoming north. a chance
of showers in the evening. waves 1 to 2 feet. 
.tuesday...northwest winds 5 to 10 knots. waves 1 foot or less. 
.wednesday...west winds less than 10 knots becoming south. a
chance of showers wednesday night. waves 1 foot or less. 
.thursday...east winds 10 knots or less becoming southwest. a
chance of showers. waves 1 foot or less. 

$$

fzus61 kcle 201937
glfle 
expires:202606210215;;086274

open lake forecast for lake erie
national weather service cleveland oh
337 pm edt sat jun 20 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 30.00 inches briefly builds over the lake tonight 
and sunday before another low pressure system 29.80 inches moves 
northeast into the ohio valley sunday night and into the mid 
atlantic by monday afternoon. high pressure 30.20 inches builds 
over the region tuesday into wednesday. low pressure 30.00 inches
and a weak cold front move through the region on thursday. 


lez162>164-210215-
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-
337 pm edt sat jun 20 2026

.tonight...west winds 15 to 20 knots becoming northwest 10 to
15 knots. waves 1 to 3 feet. 
.sunday...northwest winds 10 knots or less becoming southeast.
waves 1 foot or less. 
.sunday night...southeast winds 5 to 15 knots becoming east 15 to
20 knots. showers. waves 1 to 3 feet building to 2 to 4 feet. 
.monday...east winds 15 to 25 knots becoming northeast. showers.
waves 3 to 6 feet. 
.monday night...northeast winds 15 to 20 knots becoming north
10 to 15 knots. waves 2 to 4 feet subsiding to 1 to 3 feet. 
.tuesday...north winds 5 to 15 knots becoming northeast less than
10 knots. waves 1 to 3 feet subsiding to 1 foot or less. 
.wednesday...southwest winds 10 knots or less becoming south. a
chance of showers and thunderstorms. waves 1 foot or less. 
.thursday...southwest winds 5 to 10 knots becoming west. a chance
of showers and thunderstorms during the day, then a chance of
showers thursday night. waves 1 foot or less. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 201937
glfle 
expires:202606210215;;086275

open lake forecast for lake erie
national weather service cleveland oh
337 pm edt sat jun 20 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 30.00 inches briefly builds over the lake tonight 
and sunday before another low pressure system 29.80 inches moves 
northeast into the ohio valley sunday night and into the mid 
atlantic by monday afternoon. high pressure 30.20 inches builds 
over the region tuesday into wednesday. low pressure 30.00 inches
and a weak cold front move through the region on thursday. 


lez165>167-210215-
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-
337 pm edt sat jun 20 2026

.tonight...west winds 10 to 15 knots becoming northwest. a slight
chance of showers and thunderstorms this evening. waves 1 to
3 feet. 
.sunday...northwest winds 10 knots or less becoming southwest.
waves 2 feet or less. 
.sunday night...southeast winds 5 to 15 knots becoming east 15 to
20 knots. a chance of showers in the evening, then showers
overnight. waves 1 foot or less building to 2 to 4 feet. 
.monday...east winds 15 to 25 knots becoming northeast. showers.
waves 3 to 6 feet. 
.monday night...northeast winds 15 to 20 knots becoming north
10 to 15 knots. waves 3 to 5 feet subsiding to 2 to 4 feet. 
.tuesday...north winds 5 to 15 knots. waves 1 to 3 feet subsiding
to 1 foot or less. 
.wednesday...northwest winds 10 knots or less becoming south. a
chance of showers and thunderstorms wednesday night. waves 1 foot
or less. 
.thursday...south winds 5 to 10 knots becoming west. a chance of
showers. waves 1 foot or less. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 201937
glfle 
expires:202606210215;;086276

open lake forecast for lake erie
national weather service cleveland oh
337 pm edt sat jun 20 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 30.00 inches briefly builds over the lake tonight 
and sunday before another low pressure system 29.80 inches moves 
northeast into the ohio valley sunday night and into the mid 
atlantic by monday afternoon. high pressure 30.20 inches builds 
over the region tuesday into wednesday. low pressure 30.00 inches
and a weak cold front move through the region on thursday. 


lez061-168-169-210215-
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-
337 pm edt sat jun 20 2026

.tonight...southwest winds 5 to 15 knots becoming west. a chance
of showers and thunderstorms early, then a slight chance of
showers and thunderstorms. a slight chance of showers late. waves
1 to 2 feet. 
.sunday...northwest winds 10 knots or less becoming southwest.
waves 2 feet or less. 
.sunday night...southwest winds 10 knots or less becoming east
10 to 15 knots. showers likely overnight. waves 2 feet or less. 
.monday...east winds 15 to 20 knots becoming northeast. showers.
waves 2 to 4 feet building to 3 to 5 feet. 
.monday night...northeast winds 15 to 20 knots becoming north
10 to 15 knots. a chance of showers in the evening. waves 3 to
5 feet subsiding to 1 to 3 feet. 
.tuesday...north winds 5 to 15 knots. waves 2 feet or less. 
.wednesday...northwest winds 10 knots or less becoming south. a
chance of showers and thunderstorms wednesday night. waves 1 foot
or less. 
.thursday...south winds 5 to 10 knots becoming southwest. a
chance of showers. waves 1 foot or less. 

winds and waves higher in and near thunderstorms.

$$

fzus63 kdtx 201948
glfsc 
expires:202606210400;;086676

lake st clair forecast
national weather service detroit/pontiac mi
348 pm edt sat jun 20 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 ridge of high pressure, 29.90 inches, will hold in
place into sunday, which will support lighter winds. a compact
low pressure system, 29.60 inches, will arrive late tomorrow into
monday morning, bringing renewed rain and thunderstorm chances
along with elevated winds speeds across the southern great lakes.


lcz460-210400-
lake st clair-
348 pm edt sat jun 20 2026

.tonight...northwest winds 10 to 15 knots diminishing to 5 to 10
knots after midnight. mostly clear. a chance of showers and
thunderstorms early in the evening. waves 2 feet or less.
.sunday...northwest winds 5 to 10 knots early in the morning
becoming light and variable...then becoming southeast 5 to 10 knots
late in the afternoon. mostly sunny until late afternoon becoming
mostly cloudy. waves 2 feet or less.
.sunday night...south winds 5 to 10 knots becoming southeast 10 to
15 knots by midnight...then becoming east 15 to 20 knots after
midnight. cloudy. a chance of showers by midnight. showers likely
after midnight. waves 2 feet or less.
.monday...northeast winds 15 to 20 knots. mostly cloudy. showers
likely early in the morning...then a chance of light showers in the
late morning and early afternoon. waves 1 to 3 feet.
.monday night...north winds 15 to 20 knots diminishing to 10 to 15
knots in the late evening and overnight. mostly clear. waves 2 feet
or less.
.tuesday...north winds 10 to 15 knots becoming northeast 5 to 10
knots in the afternoon and evening. sunny in the morning becoming
mostly clear. waves 2 feet or less.
.wednesday...southeast winds 5 to 10 knots. partly cloudy. a chance
of showers and thunderstorms. waves 2 feet or less.
.thursday...northwest winds 5 to 10 knots. partly cloudy. a chance
of showers. waves 2 feet or less.

$$

fzus63 kdtx 201947
glflh 
expires:202606210400;;086674

open lake forecast for lake huron
national weather service detroit/pontiac mi
347 pm edt sat jun 20 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 ridge of high pressure, 29.90 inches, will hold in
place into sunday, which will support lighter winds. a compact
low pressure system, 29.60 inches, will arrive late tomorrow into
monday morning, bringing renewed rain and thunderstorm chances
along with elevated winds speeds across the southern great lakes.


lhz462>464-210400-
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-
347 pm edt sat jun 20 2026

.tonight...light and variable winds. a chance of showers in the
evening. waves 2 feet or less. 
.sunday...light and variable winds. waves 2 feet or less. 
.sunday night...east winds 5 to 10 knots. waves 2 feet or less. 
.monday...east winds 5 to 10 knots backing to the northeast in
the late morning and early afternoon...then becoming northeast
5 to 10 knots early in the afternoon. waves 1 to 3 feet building
to 2 to 4 feet early in the afternoon. 
.monday night...north winds 10 to 15 knots. waves 2 to 4 feet. 
.tuesday...north winds 5 to 10 knots becoming light and variable.
waves 1 to 3 feet. 
.wednesday...light and variable winds becoming east 5 to 10 knots
. a chance of showers . waves 2 feet or less. 
.thursday...east winds 5 to 10 knots backing to the northeast
early in the evening...then becoming light and variable by
midnight. a chance of showers until afternoon. waves 2 feet or
less. 


$$

fzus63 kdtx 201947
glflh 
expires:202606210400;;086673

open lake forecast for lake huron
national weather service detroit/pontiac mi
347 pm edt sat jun 20 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 ridge of high pressure, 29.90 inches, will hold in
place into sunday, which will support lighter winds. a compact
low pressure system, 29.60 inches, will arrive late tomorrow into
monday morning, bringing renewed rain and thunderstorm chances
along with elevated winds speeds across the southern great lakes.


lhz362-363-210400-
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-
347 pm edt sat jun 20 2026

.tonight...light and variable winds becoming west 5 to 10 knots
after midnight. waves 2 feet or less. 
.sunday...northwest winds 5 to 10 knots in the morning becoming
light and variable. waves 2 feet or less. 
.sunday night...light and variable winds. waves 2 feet or less. 
.monday...north winds 5 to 10 knots. waves 1 to 3 feet. 
.monday night...north winds 5 to 10 knots increasing to 10 to
15 knots in the late evening and overnight. waves 2 to 4 feet. 
.tuesday...north winds 5 to 10 knots becoming light and variable.
waves 1 to 3 feet. 
.wednesday...light and variable winds. a chance of showers .
waves 2 feet or less. 
.thursday...light and variable winds becoming northeast 5 to
10 knots in the late morning and early afternoon...then becoming
light and variable . a chance of showers early in the morning.
waves 2 feet or less. 


$$

fzus63 kdtx 201947
glflh 
expires:202606210400;;086672

open lake forecast for lake huron
national weather service detroit/pontiac mi
347 pm edt sat jun 20 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 ridge of high pressure, 29.90 inches, will hold in
place into sunday, which will support lighter winds. a compact
low pressure system, 29.60 inches, will arrive late tomorrow into
monday morning, bringing renewed rain and thunderstorm chances
along with elevated winds speeds across the southern great lakes.


lhz361-210400-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
347 pm edt sat jun 20 2026

.tonight...northwest winds 5 to 10 knots. waves 2 feet or less. 
.sunday...west winds 5 to 10 knots. waves 2 feet or less. 
.sunday night...west winds 5 to 10 knots early in the evening
becoming light and variable. waves 2 feet or less. 
.monday...northwest winds 5 to 10 knots. waves 2 feet or less. 
.monday night...northwest winds 10 to 15 knots. waves 1 to
3 feet. 
.tuesday...north winds 5 to 10 knots in the morning becoming
light and variable...then becoming west 5 to 10 knots late in the
afternoon becoming light and variable. waves 2 feet or less. 
.wednesday...light and variable winds early in the morning
becoming northeast 5 to 10 knots...then veering to the east early
in the evening becoming light and variable. a chance of showers .
waves 2 feet or less. 
.thursday...light and variable winds becoming northeast 5 to
10 knots until early evening...then backing to the west by
midnight. a chance of showers early in the morning. waves 2 feet
or less. 


$$

fzus63 kmkx 201931
glflm 
expires:202606210330;;086128

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
231 pm cdt sat jun 20 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...

generally light winds are expected tonight into sunday morning  
as high pressure around 29.9 inches moves across lake michigan.  
low pressure around 29.6 inches should then track eastward from 
the central great plains, reaching central il early sunday 
evening, then into ohio by monday. light east winds overspread 
lake michigan sunday afternoon, becoming breezy northeast winds 
over the southern portions of the lake later sunday into sunday 
night. lighter winds return late monday evening into tuesday  
as high pressure around 30.1 inches builds into the region.


lmz080-669-671-673-675-777-779-870-872-874-876-878-210330-
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-
231 pm cdt sat jun 20 2026

sheboygan wi to pentwater mi south...

.tonight...south winds 5 to 10 kt veering to north. waves 1 to
2 ft subsiding to nearly calm. 
.sunday...northeast winds less than 10 kt becoming east 15 to
25 kt. chance of showers in the afternoon. waves 1 ft or less
building to 1 to 2 ft. 
.sunday night...east winds 20 to 30 kt becoming northeast 15 to
25 kt. showers in the evening, then chance of showers overnight.
waves 2 to 4 ft building to 4 to 6 ft occasionally to 8 ft. 
.monday...north winds 15 to 25 kt increasing to 30 kt. waves 4 to
6 ft occasionally to 8 ft building to 4 to 7 ft occasionally to
9 ft. 
.monday night...north winds to 30 kt diminishing to 10 to 20 kt
overnight. waves 4 to 7 ft occasionally to 9 ft subsiding to 3 to
5 ft. 
.tuesday...north winds 10 to 15 kt increasing to 10 to 20 kt.
waves 2 to 4 ft subsiding to 1 to 2 ft. 
.tuesday night...north winds 10 to 15 kt backing to southwest.
waves 1 to 2 ft. 
.wednesday...south winds 10 to 15 kt. showers likely with a
chance of thunderstorms. waves 1 to 2 ft. 
.thursday...northwest winds 10 to 15 kt becoming north 10 to
20 kt. waves 1 to 2 ft.  

$$

fzus63 kmkx 201931
glflm 
expires:202606210330;;086127

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
231 pm cdt sat jun 20 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...

generally light winds are expected tonight into sunday morning  
as high pressure around 29.9 inches moves across lake michigan.  
low pressure around 29.6 inches should then track eastward from 
the central great plains, reaching central il early sunday 
evening, then into ohio by monday. light east winds overspread 
lake michigan sunday afternoon, becoming breezy northeast winds 
over the southern portions of the lake later sunday into sunday 
night. lighter winds return late monday evening into tuesday  
as high pressure around 30.1 inches builds into the region.


lmz261-362-364-366-563-565-567-868-210330-
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-
231 pm cdt sat jun 20 2026

sheboygan wi to pentwater mi north...

.tonight...variable winds around 10 kt or less. waves 1 ft or 
less. 
.sunday...northeast winds less than 10 kt veering to southwest
late in the morning, then becoming northeast early in the
afternoon becoming east late. waves 1 ft or less. 
.sunday night...northeast winds 5 to 10 kt increasing to 10 to
20 kt. waves 1 to 3 ft. 
.monday...north winds 15 to 25 kt increasing to 30 kt. waves 3 to
5 ft. 
.monday night...north winds 15 to 25 kt diminishing to 10 to
20 kt. waves 3 to 5 ft subsiding to 1 to 3 ft. 
.tuesday...north winds 10 to 15 kt becoming northwest 10 to
20 kt. waves 1 to 2 ft. 
.tuesday night...north winds 5 to 10 kt veering to east. waves
1 ft or less. 
.wednesday...southeast winds 10 to 15 kt. chance of showers.
waves 1 to 2 ft. 
.thursday...north winds 10 to 15 kt increasing to 10 to 20 kt.
waves 1 to 2 ft.  

$$

fzus63 kmqt 202001
glfls 
expires:202606210800;;087118

open lake forecast for lake superior
national weather service marquette mi
401 pm edt sat jun 20 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... 

this afternoon, lake superior is sits under 29.9 inches of pressure 
between a surface low over the gulf of st. lawrence and high 
pressure over the northern plains. lake superior remains at 29.9 
inches through sunday night as the high weakens and moves over the 
upper great lakes. pressure increases to 30.2 inches by tuesday 
morning. this ridging begins to break down late tuesday, decreasing 
to 29.9 by thursday afternoon as a weak low tracks from wisconsin to 
the upper great lakes.




lsz162-210800-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
401 pm edt sat jun 20 2026 /301 pm cdt sat jun 20 2026/

.late this afternoon...southwest winds 5 to 15 knots. a slight
chance of showers. waves calm to 2 feet. 
.tonight...west winds 5 to 15 knots veering north after midnight,
then diminishing to less than 10 knots late. patchy fog after
midnight. waves calm to 2 feet. 
.sunday...northeast winds 5 to 15 knots veering southeast in the
afternoon, then backing east late. waves calm to 2 feet. 
.sunday night...northeast winds 5 to 15 knots. waves calm to
2 feet. 
.monday...north winds 5 to 15 knots. waves calm to 2 feet. 
.monday night...north winds 5 to 15 knots diminishing to less
than 10 knots after midnight. waves calm to 2 feet. 
.tuesday...north winds 5 to 15 knots veering northeast by mid
afternoon. waves calm to 2 feet. 
.tuesday night...northeast winds 5 to 15 knots. a chance of rain
showers. waves calm to 2 feet. 
.wednesday...northeast winds 5 to 15 knots. waves calm to 2 feet.
.thursday...north winds 5 to 15 knots diminishing to less than
10 knots. waves calm to 2 feet. 

$$

fzus63 kmqt 202001
glfls 
expires:202606210800;;087119

open lake forecast for lake superior
national weather service marquette mi
401 pm edt sat jun 20 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... 

this afternoon, lake superior is sits under 29.9 inches of pressure 
between a surface low over the gulf of st. lawrence and high 
pressure over the northern plains. lake superior remains at 29.9 
inches through sunday night as the high weakens and moves over the 
upper great lakes. pressure increases to 30.2 inches by tuesday 
morning. this ridging begins to break down late tuesday, decreasing 
to 29.9 by thursday afternoon as a weak low tracks from wisconsin to 
the upper great lakes.




lsz263-210800-
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 sat jun 20 2026

.late this afternoon...west winds 5 to 15 knots. patchy fog. a
slight chance of showers. waves calm to 2 feet. 
.tonight...southwest winds 5 to 15 knots becoming west less than
10 knots after midnight, then veering north late. patchy fog.
waves calm to 2 feet. 
.sunday...northeast winds less than 10 knots. patchy fog through
early afternoon. waves calm to 2 feet. 
.sunday night...northeast winds 5 to 15 knots diminishing to less
than 10 knots after midnight, then backing north late. waves calm
to 2 feet. 
.monday...north winds 5 to 15 knots backing west by mid
afternoon. waves calm to 2 feet. 
.monday night...west winds 5 to 15 knots diminishing to less than
10 knots after midnight. waves calm to 2 feet. 
.tuesday...southwest winds less than 10 knots becoming northeast
5 to 15 knots by mid afternoon. waves calm to 2 feet. 
.tuesday night...east winds 5 to 15 knots. a chance of rain
showers. waves calm to 2 feet. 
.wednesday...northeast winds 5 to 15 knots. waves calm to 2 feet.
.thursday...north winds less than 10 knots backing west. waves
calm to 2 feet. 

$$

fzus63 kmqt 202001
glfls 
expires:202606210800;;087120

open lake forecast for lake superior
national weather service marquette mi
401 pm edt sat jun 20 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... 

this afternoon, lake superior is sits under 29.9 inches of pressure 
between a surface low over the gulf of st. lawrence and high 
pressure over the northern plains. lake superior remains at 29.9 
inches through sunday night as the high weakens and moves over the 
upper great lakes. pressure increases to 30.2 inches by tuesday 
morning. this ridging begins to break down late tuesday, decreasing 
to 29.9 by thursday afternoon as a weak low tracks from wisconsin to 
the upper great lakes.




lsz264-210800-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
401 pm edt sat jun 20 2026

.late this afternoon...west winds 5 to 15 knots. patchy fog. a
slight chance of showers. waves calm to 2 feet. 
.tonight...west winds 5 to 15 knots diminishing to less than
10 knots after midnight, then veering northwest late. patchy fog.
waves calm to 2 feet. 
.sunday...northwest winds less than 10 knots backing southwest
late. patchy fog through early afternoon. waves calm to 2 feet. 
.sunday night...northwest winds less than 10 knots becoming north
5 to 15 knots late. waves calm to 2 feet. 
.monday...north winds 5 to 15 knots backing west by mid
afternoon. waves calm to 2 feet. 
.monday night...west winds 5 to 15 knots. waves calm to 2 feet. 
.tuesday...west winds less than 10 knots backing southwest by mid
afternoon. waves calm to 2 feet. 
.tuesday night...southeast winds less than 10 knots backing east
after midnight. waves calm to 2 feet. 
.wednesday...east winds 5 to 15 knots backing north. waves calm
to 2 feet. 
.thursday...west winds less than 10 knots. waves calm to 2 feet. 

$$

fzus63 kmqt 202001
glfls 
expires:202606210800;;087121

open lake forecast for lake superior
national weather service marquette mi
401 pm edt sat jun 20 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... 

this afternoon, lake superior is sits under 29.9 inches of pressure 
between a surface low over the gulf of st. lawrence and high 
pressure over the northern plains. lake superior remains at 29.9 
inches through sunday night as the high weakens and moves over the 
upper great lakes. pressure increases to 30.2 inches by tuesday 
morning. this ridging begins to break down late tuesday, decreasing 
to 29.9 by thursday afternoon as a weak low tracks from wisconsin to 
the upper great lakes.




lsz265-210800-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
401 pm edt sat jun 20 2026

.late this afternoon...north winds 5 to 15 knots. waves calm to
2 feet. 
.tonight...southwest winds 5 to 15 knots veering west after
midnight. areas of fog. waves calm to 2 feet. 
.sunday...northwest winds 5 to 15 knots veering east in the
afternoon. patchy fog. waves calm to 2 feet. 
.sunday night...east winds 5 to 15 knots backing northwest after
midnight. waves calm to 2 feet. 
.monday...northwest winds 5 to 15 knots veering north by mid
afternoon. waves calm to 2 feet. 
.monday night...northwest winds 5 to 15 knots backing west after
midnight. waves calm to 2 feet. 
.tuesday...northwest winds 5 to 15 knots veering east by mid
afternoon. waves calm to 2 feet. 
.tuesday night...southeast winds 5 to 15 knots. waves calm to
2 feet. 
.wednesday...east winds 5 to 15 knots. waves calm to 2 feet. 
.thursday...north winds 5 to 15 knots backing west. waves calm to
2 feet. 

$$

fzus63 kmqt 202001
glfls 
expires:202606210800;;087122

open lake forecast for lake superior
national weather service marquette mi
401 pm edt sat jun 20 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... 

this afternoon, lake superior is sits under 29.9 inches of pressure 
between a surface low over the gulf of st. lawrence and high 
pressure over the northern plains. lake superior remains at 29.9 
inches through sunday night as the high weakens and moves over the 
upper great lakes. pressure increases to 30.2 inches by tuesday 
morning. this ridging begins to break down late tuesday, decreasing 
to 29.9 by thursday afternoon as a weak low tracks from wisconsin to 
the upper great lakes.




lsz266-210800-
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 sat jun 20 2026

.late this afternoon...northwest winds 5 to 15 knots. patchy fog.
waves calm to 2 feet. 
.tonight...northwest winds 5 to 15 knots backing west after
midnight. patchy fog through midnight, then areas of dense fog
after midnight. waves calm to 2 feet. 
.sunday...west winds 5 to 15 knots. patchy fog. waves calm to
2 feet. 
.sunday night...northwest winds 5 to 15 knots. waves calm to
2 feet. 
.monday...northwest winds 10 to 20 knots. waves calm to 2 feet. 
.monday night...northwest winds 5 to 15 knots. waves calm to
2 feet. 
.tuesday...northwest winds 5 to 15 knots. waves calm to 2 feet. 
.tuesday night...east winds 5 to 15 knots veering southeast after
midnight. waves calm to 2 feet. 
.wednesday...east winds 5 to 15 knots backing north. waves calm
to 2 feet. 
.thursday...north winds 5 to 15 knots backing northwest. waves
calm to 2 feet. 

$$

fzus63 kmqt 202001
glfls 
expires:202606210800;;087123

open lake forecast for lake superior
national weather service marquette mi
401 pm edt sat jun 20 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... 

this afternoon, lake superior is sits under 29.9 inches of pressure 
between a surface low over the gulf of st. lawrence and high 
pressure over the northern plains. lake superior remains at 29.9 
inches through sunday night as the high weakens and moves over the 
upper great lakes. pressure increases to 30.2 inches by tuesday 
morning. this ridging begins to break down late tuesday, decreasing 
to 29.9 by thursday afternoon as a weak low tracks from wisconsin to 
the upper great lakes.




lsz267-210800-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
401 pm edt sat jun 20 2026

.late this afternoon...northwest winds 5 to 15 knots. waves calm
to 2 feet. 
.tonight...west winds 5 to 15 knots. patchy fog. waves calm to
2 feet. 
.sunday...west winds 5 to 15 knots veering northwest late. patchy
dense fog through early afternoon. waves calm to 2 feet. 
.sunday night...northwest winds 5 to 15 knots. waves calm to
2 feet. 
.monday...northwest winds 10 to 20 knots. waves calm to 2 feet. 
.monday night...northwest winds 10 to 20 knots diminishing to
5 to 15 knots after midnight. waves calm to 2 feet. 
.tuesday...west winds 5 to 15 knots veering northwest by mid
afternoon. waves calm to 2 feet. 
.tuesday night...northwest winds 5 to 15 knots veering north
after midnight. waves calm to 2 feet. 
.wednesday...east winds 5 to 15 knots backing northeast. waves
calm to 2 feet. 
.thursday...northwest winds 5 to 15 knots. waves calm to 2 feet. 

$$