fzus61 kbuf 201402
glflo 
expires:202606202100;;071770

open lake forecast for lake ontario
national weather service buffalo ny
1002 am 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 sunday. 
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.


loz062-202100-
lake ontario open waters from the niagara river to hamlin beach-
1002 am edt sat jun 20 2026

.this afternoon...west winds 10 to 15 knots. waves 1 to 3 feet. 
.tonight...west winds 5 to 10 knots. a chance of showers late.
waves 1 to 3 feet subsiding to 1 foot or less. 
.sunday...west winds 10 knots or less becoming southwest. waves
1 foot or less. 
.sunday night...southwest winds less than 10 knots becoming
southeast. a chance of showers overnight. waves 1 foot or less. 
.monday...east winds 5 to 15 knots becoming northwest. showers
likely during the day, then a chance of showers monday night.
waves 2 feet or less. 
.tuesday...northwest winds 5 to 10 knots. waves 2 feet or less. 
.wednesday...west winds less than 10 knots becoming southeast. a
chance of showers wednesday night. waves 1 foot or less. 

$$

fzus61 kbuf 201402
glflo 
expires:202606202100;;071771

open lake forecast for lake ontario
national weather service buffalo ny
1002 am 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 sunday. 
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>065-202100-
lake ontario open waters from hamlin beach to the saint lawrence
river-
1002 am edt sat jun 20 2026

.this afternoon...west winds 15 to 20 knots. waves 3 to 5 feet. 
.tonight...west winds 5 to 15 knots. waves 2 to 4 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. a
chance of showers overnight. waves 2 feet or less. 
.monday...southeast winds 5 to 10 knots becoming northwest.
showers likely. waves 2 feet or less. 
.tuesday...northwest winds 5 to 15 knots becoming west. 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. 

$$

fzus61 kcle 201351
glfle 
expires:202606202015;;071431

open lake forecast for lake erie
national weather service cleveland oh
951 am 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...
weak low pressure 29.90 inches crosses lake erie this afternoon, 
dragging a cold front across the lake. high pressure 30.00 inches briefly
builds over the lake tonight and sunday before another low 
pressure system 29.60 inches moves northeast into the ohio valley 
sunday night and into the mid atlantic by monday afternoon. this 
will drag another cold front across the lake monday. a ridge 
averaging 30.10 inches builds over the region tuesday through 
wednesday.


lez162>164-202015-
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-
951 am edt sat jun 20 2026

.rest of today...southwest winds 10 to 15 knots becoming west
15 to 20 knots. isolated showers late this morning. waves 1 to
3 feet. 
.tonight...west winds 15 to 20 knots becoming northwest 5 to
15 knots. waves 1 to 3 feet subsiding to 1 foot or less. 
.sunday...northwest winds 10 knots or less becoming southeast.
waves 1 foot or less. 
.sunday night...southeast winds 5 to 15 knots becoming east and
increasing to 15 to 25 knots. rain. waves 2 feet or less building
to 3 to 5 feet. 
.monday...northeast winds 15 to 25 knots becoming north and
diminishing to 10 to 15 knots. a chance of showers during the
day. waves 4 to 7 feet subsiding to 1 to 3 feet. waves
occasionally around 9 feet. 
.tuesday...north winds 10 knots or less becoming northwest. waves
2 feet or less. 
.wednesday...southwest winds 5 to 10 knots. a chance of showers
and thunderstorms. waves 1 foot or less. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 201351
glfle 
expires:202606202015;;071432

open lake forecast for lake erie
national weather service cleveland oh
951 am 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...
weak low pressure 29.90 inches crosses lake erie this afternoon, 
dragging a cold front across the lake. high pressure 30.00 inches briefly
builds over the lake tonight and sunday before another low 
pressure system 29.60 inches moves northeast into the ohio valley 
sunday night and into the mid atlantic by monday afternoon. this 
will drag another cold front across the lake monday. a ridge 
averaging 30.10 inches builds over the region tuesday through 
wednesday.


lez165>167-202015-
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-
951 am edt sat jun 20 2026

.rest of today...west winds 10 to 15 knots becoming southwest.
scattered showers late this morning. waves 1 to 3 feet. 
.tonight...west winds 5 to 15 knots becoming northwest. a slight
chance of showers and thunderstorms late in the evening. waves
1 to 3 feet. 
.sunday...northwest winds 10 knots or less becoming southwest.
waves 1 foot or less. 
.sunday night...southeast winds 5 to 15 knots becoming east 15 to
20 knots. a chance of rain in the evening, then rain overnight.
waves 1 foot or less building to 2 to 4 feet. 
.monday...northeast winds 15 to 25 knots becoming north and
diminishing to 10 to 15 knots. showers likely during the day.
waves 4 to 7 feet subsiding to 2 to 4 feet. waves occasionally
around 9 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. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 201351
glfle 
expires:202606202015;;071433

open lake forecast for lake erie
national weather service cleveland oh
951 am 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...
weak low pressure 29.90 inches crosses lake erie this afternoon, 
dragging a cold front across the lake. high pressure 30.00 inches briefly
builds over the lake tonight and sunday before another low 
pressure system 29.60 inches moves northeast into the ohio valley 
sunday night and into the mid atlantic by monday afternoon. this 
will drag another cold front across the lake monday. a ridge 
averaging 30.10 inches builds over the region tuesday through 
wednesday.


lez061-168-169-202015-
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-
951 am edt sat jun 20 2026

.rest of today...west winds 5 to 15 knots becoming southwest.
isolated showers. waves 1 to 2 feet. 
.tonight...southwest winds 5 to 10 knots becoming west. a slight
chance of showers and thunderstorms through the early overnight.
waves 1 to 2 feet. 
.sunday...northwest winds 10 knots or less becoming southwest.
waves 1 foot or less. 
.sunday night...southwest winds 10 knots or less becoming east
and increasing to 15 to 20 knots overnight. a chance of rain in
the evening, then rain likely overnight. waves 2 feet or less. 
.monday...east winds 15 to 20 knots becoming north 10 to
15 knots. showers likely during the day. waves 3 to 5 feet
subsiding to 1 to 3 feet. 
.tuesday...northwest winds 5 to 10 knots becoming north. 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. 

winds and waves higher in and near thunderstorms.

$$

fzus63 kdtx 201337
glfsc 
expires:202606202145;;071037

lake st clair forecast
national weather service detroit/pontiac mi
937 am 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, builds in
through the morning which will support lighter winds. the next
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.


lcz460-202145-
lake st clair-
937 am edt sat jun 20 2026

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

$$

fzus63 kdtx 201336
glflh 
expires:202606202145;;071005

open lake forecast for lake huron
national weather service detroit/pontiac mi
936 am 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, builds in
through the morning which will support lighter winds. the next
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>464-202145-
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-
936 am edt sat jun 20 2026

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


$$

fzus63 kdtx 201336
glflh 
expires:202606202145;;071004

open lake forecast for lake huron
national weather service detroit/pontiac mi
936 am 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, builds in
through the morning which will support lighter winds. the next
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.


lhz362-363-202145-
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-
936 am edt sat jun 20 2026

.rest of today...light and variable winds. waves 2 feet or less. 
.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 early in the morning
becoming light and variable. waves 2 feet or less. 
.sunday night...light and variable winds. waves 2 feet or less. 
.monday...northeast winds 5 to 10 knots becoming northwest late
in the afternoon. waves 1 to 3 feet building to 2 to 4 feet late
in the afternoon. 
.tuesday...north winds 5 to 10 knots early in the morning
becoming light and variable. waves 1 to 3 feet. 
.wednesday...light and variable winds. a chance of showers by
midnight. waves 2 feet or less. 


$$

fzus63 kdtx 201336
glflh 
expires:202606202145;;071003

open lake forecast for lake huron
national weather service detroit/pontiac mi
936 am 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, builds in
through the morning which will support lighter winds. the next
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.


lhz361-202145-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
936 am edt sat jun 20 2026

.rest of today...light and variable winds becoming west 5 to
10 knots in the afternoon. waves 2 feet or less. 
.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...then becoming north 5 to 10 knots
after midnight. waves 2 feet or less. 
.monday...northwest winds 5 to 10 knots increasing to 10 to
15 knots late in the afternoon. waves 1 to 3 feet. 
.tuesday...northwest winds 5 to 10 knots backing to the west
early in the evening...then veering to the northwest by midnight.
waves 2 feet or less. 
.wednesday...light and variable winds becoming east 5 to 10 knots
early in the evening...then becoming light and variable by
midnight. a chance of showers . waves 2 feet or less. 


$$

fzus63 kmkx 201403
glflm 
expires:202606202130;;071811

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
903 am 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 today as high pressure around 
30.0 inches moves through the day. then another low pressure 
around 29.5 inches should track eastward from the central great 
plains on sunday, reaching central il early sunday evening, then 
into ohio by monday. east winds overspread lake michigan sunday, 
becoming gusty over southern portions of the lake and turning 
northeast later sunday into sunday night. winds turn north and 
remain gusty into monday, particularly over southern portions of 
the lake. at this time, winds look to remain below gale force over
southern portions of the lake. lighter winds return tuesday and 
wednesday, as high pressure around 30.1 inches builds into the 
region.


lmz261-362-364-366-563-565-567-868-202130-
lake michigan from seul choix point to rock island passage 5 nm
offshore to mid lake-
lake michigan south of a line from seul choix point to the
mackinac bridge and north of a line from charlevoix mi to south
fox island 5 nm offshore-
lake michigan from charlevoix to point betsie mi 5 nm offshore to
mid lake-
lake michigan from point betsie to manistee mi 5 nm offshore to
mid lake-
lake michigan from rock island passage to sturgeon bay wi-
lake michigan from sturgeon bay to two rivers wi 5 nm offshore to
mid lake-
lake michigan from two rivers to sheboygan wi 5 nm offshore to
mid lake-
lake michigan from pentwater to manistee mi 5 nm offshore to mid
lake-
903 am cdt sat jun 20 2026

sheboygan wi to pentwater mi north...

.rest of today...northwest winds 10 to 15 kt backing to
southwest. waves 1 to 3 ft. 
.tonight...west winds 10 to 15 kt veering to north. waves 1 ft or
less. 
.sunday...north winds less than 10 kt becoming northeast 10 to
15 kt. waves 1 ft or less. 
.sunday night...north winds 10 to 20 kt becoming northeast. waves
1 to 2 ft building to 2 to 4 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. 
.wednesday...southeast winds 10 to 15 kt becoming south 10 to
20 kt. chance of showers. waves 1 to 2 ft.  

$$

fzus63 kmkx 201403
glflm 
expires:202606202130;;071812

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
903 am 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 today as high pressure around 
30.0 inches moves through the day. then another low pressure 
around 29.5 inches should track eastward from the central great 
plains on sunday, reaching central il early sunday evening, then 
into ohio by monday. east winds overspread lake michigan sunday, 
becoming gusty over southern portions of the lake and turning 
northeast later sunday into sunday night. winds turn north and 
remain gusty into monday, particularly over southern portions of 
the lake. at this time, winds look to remain below gale force over
southern portions of the lake. lighter winds return tuesday and 
wednesday, as high pressure around 30.1 inches builds into the 
region.


lmz080-669-671-673-675-777-779-870-872-874-876-878-202130-
lake michigan from michigan city in to st. joseph mi 5 nm
offshore to mid lake-
lake michigan from sheboygan to port washington wi 5 nm offshore
to mid lake-
lake michigan from port washington to north point light wi 5 nm
offshore to mid lake-
lake michigan from north point light to wind point wi 5 nm
offshore to mid lake-
lake michigan from wind point wi to winthrop harbor il 5 nm
offshore to mid lake-
lake michigan from winthrop harbor to wilmette harbor il 5 nm
offshore to mid lake-
lake michigan from wilmette harbor il to michigan city in 5 nm
offshore to mid lake-
lake michigan from whitehall to pentwater mi 5 nm offshore to mid
lake-
lake michigan from grand haven to whitehall mi 5 nm offshore to
mid lake-
lake michigan from holland to grand haven mi 5 nm offshore to mid
lake-
lake michigan from south haven to holland mi 5 nm offshore to mid
lake-
lake michigan from st. joseph to south haven mi 5 nm offshore to
mid lake-
903 am cdt sat jun 20 2026

sheboygan wi to pentwater mi south...

.rest of today...west winds 10 to 15 kt becoming light and
variable in the afternoon. waves 2 to 4 ft subsiding to 1 to 3 
ft. 
.tonight...southwest winds 5 to 10 kt veering to northwest. waves
1 to 2 ft subsiding to nearly calm. 
.sunday...northeast winds less than 10 kt becoming east late in
the morning, then becoming 10 to 15 kt early in the afternoon
becoming northeast 15 to 25 kt late. chance of showers in the
afternoon. waves 1 ft or less building to 1 to 3 ft. 
.sunday night...northeast winds to 30 kt diminishing to 15 to
25 kt. chance of showers. waves 4 to 7 ft occasionally to 9 ft. 
.monday...north winds 15 to 25 kt increasing to 30 kt. waves 4 to
7 ft occasionally to 9 ft. 
.monday night...north winds to 30 kt diminishing to 10 to 15 kt.
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. 
.wednesday...southwest winds 10 to 15 kt becoming south 10 to
20 kt. chance of showers. waves 1 to 2 ft.  

$$

fzus63 kmqt 201401
glfls 
expires:202606202000;;071672

open lake forecast for lake superior
national weather service marquette mi
1000 am 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 morning, 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 evening 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.




lsz266-202000-
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 am edt sat jun 20 2026

.rest of today...northwest winds 5 to 15 knots. waves calm to
2 feet. 
.tonight...northwest winds 5 to 15 knots backing west after
midnight. waves calm to 2 feet. 
.sunday...northwest winds 5 to 15 knots. 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 building to
1 to 3 feet, then subsiding to calm to 2 feet. 
.tuesday...northwest winds 5 to 15 knots backing southeast. waves
calm to 2 feet. 
.wednesday...east winds 5 to 15 knots backing northeast. waves
calm to 2 feet. 

$$

fzus63 kmqt 201401
glfls 
expires:202606202000;;071673

open lake forecast for lake superior
national weather service marquette mi
1000 am 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 morning, 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 evening 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.




lsz267-202000-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
1000 am edt sat jun 20 2026

.rest of today...northwest winds 5 to 15 knots increasing to
10 to 20 knots late. waves calm to 2 feet. 
.tonight...west winds 10 to 20 knots diminishing to 5 to 15 knots
after midnight. waves calm to 2 feet. 
.sunday...west winds 5 to 15 knots veering northwest in the
afternoon. waves calm to 2 feet. 
.sunday night...northwest winds 5 to 15 knots increasing to 10 to
20 knots after midnight. waves calm to 2 feet. 
.monday...northwest winds 10 to 20 knots. waves building to 1 to
3 feet. 
.monday night...northwest winds 10 to 20 knots diminishing to
5 to 15 knots after midnight. waves subsiding to calm to 2 feet. 
.tuesday...northwest winds 5 to 15 knots. waves calm to 2 feet. 
.wednesday...northeast winds 5 to 15 knots veering east. waves
calm to 2 feet. 

$$

fzus63 kmqt 201401
glfls 
expires:202606202000;;071668

open lake forecast for lake superior
national weather service marquette mi
1000 am 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 morning, 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 evening 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.




lsz162-202000-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
1000 am edt sat jun 20 2026 /900 am cdt sat jun 20 2026/

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

$$

fzus63 kmqt 201401
glfls 
expires:202606202000;;071670

open lake forecast for lake superior
national weather service marquette mi
1000 am 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 morning, 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 evening 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.




lsz264-202000-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
1000 am edt sat jun 20 2026

.rest of today...west winds 5 to 15 knots backing southwest late.
a slight chance of showers. waves calm to 2 feet. 
.tonight...west winds less than 10 knots. waves calm to 2 feet. 
.sunday...west winds less than 10 knots. waves calm to 2 feet. 
.sunday night...northwest winds less than 10 knots becoming north
5 to 15 knots after midnight. 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 southeast. waves
calm to 2 feet. 
.wednesday...east winds 5 to 15 knots becoming north less than
10 knots. waves calm to 2 feet. 

$$

fzus63 kmqt 201401
glfls 
expires:202606202000;;071669

open lake forecast for lake superior
national weather service marquette mi
1000 am 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 morning, 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 evening 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.




lsz263-202000-
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 am edt sat jun 20 2026

.rest of today...southwest winds 5 to 15 knots diminishing to
less than 10 knots late. a slight chance of showers and
thunderstorms. waves calm to 2 feet. 
.tonight...southwest winds less than 10 knots veering west after
midnight, then veering north late. waves calm to 2 feet. 
.sunday...north winds less than 10 knots veering south in the
afternoon, then backing northeast late. waves calm to 2 feet. 
.sunday night...northeast winds 5 to 15 knots backing north after
midnight. 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 5 to 15 knots backing east. a chance
of rain showers. waves calm to 2 feet. 
.wednesday...east winds 5 to 15 knots backing northeast. waves
calm to 2 feet. 

$$

fzus63 kmqt 201401
glfls 
expires:202606202000;;071671

open lake forecast for lake superior
national weather service marquette mi
1000 am 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 morning, 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 evening 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.




lsz265-202000-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
1000 am edt sat jun 20 2026

.rest of today...west winds 5 to 15 knots veering north in the
afternoon, then veering east late. a slight chance of showers.
waves calm to 2 feet. 
.tonight...southwest winds 5 to 15 knots veering west after
midnight. waves calm to 2 feet. 
.sunday...west winds 5 to 15 knots veering northeast in the
afternoon, then veering east late. waves calm to 2 feet. 
.sunday night...northeast winds 5 to 15 knots backing northwest
after midnight. waves calm to 2 feet. 
.monday...northwest winds 5 to 15 knots. waves calm to 2 feet. 
.monday night...northwest winds 5 to 15 knots backing west after
midnight. waves calm to 2 feet. 
.tuesday...east winds 5 to 15 knots veering southeast. a chance
of showers. waves calm to 2 feet. 
.wednesday...east winds 5 to 15 knots. waves calm to 2 feet. 

$$