fzus61 kbuf 190802
glflo 
expires:202606191500;;004562

open lake forecast for lake ontario
national weather service buffalo ny
402 am edt fri jun 19 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 29.1 inch low will move into the 
canadian maritimes today while filling to 29.4 inches, eventually 
moving east of newfoundland by saturday night. a weak ridge of high 
pressure averaging 29.9 inches will then build into the great lakes 
saturday night through sunday. a 29.6 inch low is then forecast to 
move over or just south of the lower great lakes monday, before 
moving off the new england coast by tuesday.


loz063>065-191500-
lake ontario open waters from hamlin beach to the saint lawrence
river-
402 am edt fri jun 19 2026

.today...west winds 20 to 25 knots. waves 5 to 8 feet. waves
occasionally around 10 feet. 
.tonight...west winds 20 to 25 knots. waves 4 to 7 feet. waves
occasionally around 9 feet. 
.saturday...west winds 15 to 20 knots. waves 4 to 7 feet
subsiding to 3 to 6 feet. waves occasionally around 9 feet. 
.saturday night...west winds 15 to 20 knots diminishing to 5 to
15 knots. waves 3 to 5 feet subsiding to 1 to 3 feet. 
.sunday...west winds 10 knots or less becoming south. a chance of
showers sunday night. waves 2 feet or less. 
.monday...southeast winds 10 to 15 knots becoming northwest.
showers during the day, then showers likely monday night. waves
1 foot or less building to 1 to 3 feet. 
.tuesday...northwest winds 5 to 15 knots becoming west. waves
1 to 3 feet. 

$$

fzus61 kbuf 190802
glflo 
expires:202606191500;;004561

open lake forecast for lake ontario
national weather service buffalo ny
402 am edt fri jun 19 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 29.1 inch low will move into the 
canadian maritimes today while filling to 29.4 inches, eventually 
moving east of newfoundland by saturday night. a weak ridge of high 
pressure averaging 29.9 inches will then build into the great lakes 
saturday night through sunday. a 29.6 inch low is then forecast to 
move over or just south of the lower great lakes monday, before 
moving off the new england coast by tuesday.


loz062-191500-
lake ontario open waters from the niagara river to hamlin beach-
402 am edt fri jun 19 2026

.today...west winds 15 to 20 knots. waves 3 to 6 feet. 
.tonight...west winds 15 to 20 knots. waves 3 to 5 feet. 
.saturday...west winds 15 to 20 knots diminishing to 10 to
15 knots. waves 2 to 4 feet subsiding to 1 to 3 feet. 
.saturday night...west winds 10 knots or less. waves 1 to 3 feet
subsiding to 1 foot or less. 
.sunday...west winds 10 knots or less becoming southeast. a
chance of showers sunday night. waves 1 foot or less. 
.monday...east winds 15 to 20 knots becoming northwest 10 to
15 knots. showers likely during the day, then a chance of showers
monday night. waves 1 to 3 feet. 
.tuesday...northwest winds 5 to 10 knots. waves 2 feet or less. 

$$

fzus61 kcle 190747
glfle 
expires:202606191430;;004076

open lake forecast for lake erie
national weather service cleveland oh
347 am edt fri jun 19 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 trough averaging 29.70 inches lingers over lake erie today 
before a high pressure ridge averaging 30.00 inches builds from 
the west saturday through sunday. during sunday night through 
monday, a trough averaging 29.80 inches should impact lake erie as
the parent low wobbles east- northeastward from near the mid 
mississippi valley to near central new york and deepens to 29.60 
inches. behind the low, a ridge averaging 30.00 inches builds 
across the great lakes tuesday.


lez162>164-191430-
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-
347 am edt fri jun 19 2026

.today...west winds 10 to 15 knots. waves 1 to 3 feet. 
.tonight...west winds 10 to 15 knots. waves 1 to 3 feet. 
.saturday...west winds 10 to 15 knots. waves 2 feet or less. 
.saturday night...west winds 5 to 15 knots becoming northwest.
waves 2 feet or less. 
.sunday...northwest winds 10 knots or less becoming east and
increasing to 15 to 25 knots. showers with a chance of
thunderstorms sunday night. 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 3 to 6 feet subsiding to 1 to 3 feet. 
.tuesday...north winds 5 to 15 knots becoming east less than
10 knots. waves 2 feet or less. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 190747
glfle 
expires:202606191430;;004077

open lake forecast for lake erie
national weather service cleveland oh
347 am edt fri jun 19 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 trough averaging 29.70 inches lingers over lake erie today 
before a high pressure ridge averaging 30.00 inches builds from 
the west saturday through sunday. during sunday night through 
monday, a trough averaging 29.80 inches should impact lake erie as
the parent low wobbles east- northeastward from near the mid 
mississippi valley to near central new york and deepens to 29.60 
inches. behind the low, a ridge averaging 30.00 inches builds 
across the great lakes tuesday.


lez165>168-191430-
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-geneva-on-
the-lake to conneaut oh beyond 5 nm off shoreline to us-
canadian border-
347 am edt fri jun 19 2026

.today...west winds 10 to 15 knots increasing to 15 to 20 knots.
waves 2 to 4 feet. 
.tonight...west winds 10 to 15 knots becoming northwest. waves
2 to 4 feet subsiding to 1 to 3 feet. 
.saturday...west winds around 10 knots becoming southwest. waves
1 to 2 feet. 
.saturday night...west winds 5 to 10 knots. waves 1 to 2 feet. 
.sunday...northwest winds 10 knots or less becoming east and
increasing to 15 to 20 knots. showers with a chance of
thunderstorms sunday night. waves 2 feet or less building to 2 to
4 feet. 
.monday...east 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 becoming northeast less than
10 knots. waves 1 to 3 feet subsiding to 1 foot or less. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 190747
glfle 
expires:202606191430;;004078

open lake forecast for lake erie
national weather service cleveland oh
347 am edt fri jun 19 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 trough averaging 29.70 inches lingers over lake erie today 
before a high pressure ridge averaging 30.00 inches builds from 
the west saturday through sunday. during sunday night through 
monday, a trough averaging 29.80 inches should impact lake erie as
the parent low wobbles east- northeastward from near the mid 
mississippi valley to near central new york and deepens to 29.60 
inches. behind the low, a ridge averaging 30.00 inches builds 
across the great lakes tuesday.


lez061-169-191430-
ripley to buffalo ny extending from 5nm off shoreline to us-
canadian border-
conneaut oh to ripley ny beyond 5 nm off shoreline to us-
canadian border-
347 am edt fri jun 19 2026

.today...west winds 10 to 15 knots increasing to 15 to 20 knots.
a slight chance of showers and thunderstorms late. waves 2 to
3 feet building to 3 to 5 feet. 
.tonight...west winds 15 to 20 knots becoming northwest and
diminishing to 5 to 10 knots. waves 3 to 5 feet subsiding to 1 to
2 feet. 
.saturday...west winds 5 to 10 knots. waves 1 to 2 feet. 
.saturday night...west winds 10 knots or less. a chance of
showers. waves 1 to 2 feet. 
.sunday...west winds less than 10 knots becoming southeast 10 to
15 knots. a chance of showers sunday night. waves 2 feet or less.
.monday...east winds 15 to 20 knots becoming north and
diminishing to around 10 knots. showers likely during the day.
waves 3 to 5 feet subsiding to 1 to 2 feet. 
.tuesday...north winds 10 knots or less. waves 2 feet or less. 

winds and waves higher in and near thunderstorms.

$$

fzus63 kdtx 190759
glfsc 
expires:202606191600;;004356

lake st clair forecast
national weather service detroit/pontiac mi
359 am edt fri jun 19 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...west to northwest flow persists today in the wake of a
low pressure which is now located across the northeast us. a
ridge of high pressure, 29.90 inches, builds in late tonight
through tomorrow morning. this will reduce winds speeds and gust
potential through the weekend. the next low pressure system,
29.60 inches, will arrive late sunday into monday morning,
bringing renewed rain and thunderstorm chances along with
elevated winds speeds across the southern great lakes.


lcz460-191600-
lake st clair-
359 am edt fri jun 19 2026

.today...west winds 10 to 15 knots. mostly sunny. waves 2 feet or
less.
.tonight...northwest winds 10 to 15 knots becoming west 5 to 10
knots early in the morning. mostly clear. waves 2 feet or less.
.saturday...west winds 5 to 10 knots. partly sunny. a chance of
showers and thunderstorms early in the afternoon. waves 2 feet or
less.
.saturday night...northwest winds 5 to 10 knots. mostly clear. a
chance of light showers early in the evening. waves 2 feet or less.
.sunday...northwest winds 5 to 10 knots veering to the southeast in
the afternoon...then increasing to 10 to 15 knots in the evening.
mostly sunny becoming partly sunny in the afternoon becoming mostly
cloudy. showers likely in the evening. waves 2 feet or less.
.monday...north winds 20 to 25 knots with gusts to 30 knots.
showers. waves 1 to 3 feet. a small craft advisory may be needed.
.tuesday...northeast winds 10 to 15 knots. mostly clear. waves 2
feet or less.

$$

fzus63 kdtx 190758
glflh 
expires:202606191600;;004344

open lake forecast for lake huron
national weather service detroit/pontiac mi
358 am edt fri jun 19 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...west to northwest flow persists today in the wake of a
low pressure which is now located across the northeast us. a
ridge of high pressure, 29.90 inches, builds in late tonight
through tomorrow morning. this will reduce winds speeds and gust
potential through the weekend. the next low pressure system,
29.60 inches, will arrive late sunday into monday morning,
bringing renewed rain and thunderstorm chances along with
elevated winds speeds across the southern great lakes.


lhz462>464-191600-
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-
358 am edt fri jun 19 2026

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


$$

fzus63 kdtx 190758
glflh 
expires:202606191600;;004343

open lake forecast for lake huron
national weather service detroit/pontiac mi
358 am edt fri jun 19 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...west to northwest flow persists today in the wake of a
low pressure which is now located across the northeast us. a
ridge of high pressure, 29.90 inches, builds in late tonight
through tomorrow morning. this will reduce winds speeds and gust
potential through the weekend. the next low pressure system,
29.60 inches, will arrive late sunday into monday morning,
bringing renewed rain and thunderstorm chances along with
elevated winds speeds across the southern great lakes.


lhz362-363-191600-
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-
358 am edt fri jun 19 2026

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


$$

fzus63 kdtx 190758
glflh 
expires:202606191600;;004342

open lake forecast for lake huron
national weather service detroit/pontiac mi
358 am edt fri jun 19 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...west to northwest flow persists today in the wake of a
low pressure which is now located across the northeast us. a
ridge of high pressure, 29.90 inches, builds in late tonight
through tomorrow morning. this will reduce winds speeds and gust
potential through the weekend. the next low pressure system,
29.60 inches, will arrive late sunday into monday morning,
bringing renewed rain and thunderstorm chances along with
elevated winds speeds across the southern great lakes.


lhz361-191600-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
358 am edt fri jun 19 2026

.today...west winds 10 to 15 knots increasing to 15 to 20 knots
in the afternoon. waves 2 to 4 feet. 
.tonight...northwest winds 10 to 15 knots becoming west 5 to
10 knots after midnight. waves 2 to 4 feet subsiding to 1 to
3 feet after midnight. 
.saturday...light and variable winds. waves 2 feet or less. 
.saturday night...west winds 5 to 10 knots veering to the
northwest in the late evening and overnight. waves 2 feet or
less. 
.sunday...west winds 5 to 10 knots. waves 2 feet or less. 
.monday...northwest winds 5 to 10 knots increasing to 10 to
15 knots . waves 1 to 3 feet. 
.tuesday...north winds 5 to 10 knots backing to the west . waves
2 feet or less. 


$$

fzus63 kmkx 190802
glflm 
expires:202606191545;;004550

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
302 am cdt fri jun 19 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...

a light northwest breeze continues over lake michigan this
morning as low pressure around 29.3 inches lingers near the saint
lawrence river / gulf. winds turn south for a brief period this
afternoon as a weak trough of low pressure approaches the lake. it
crosses northern portions of the lake late tonight with nearly
calm winds underneath it and light southwest to west winds 
further south. winds then remain relatively light and variable 
until sunday. 

low pressure tracks northeastward from the central great plains 
on sunday, reaching illinois sunday afternoon then the ohio river
valley by monday morning. east winds overspread lake michigan
sunday afternoon, becoming gusty over southern portions of the
lake and turning northeast later sunday into sunday night (as the
low makes its closest approach). winds turn north and remain gusty
into monday, particularly over southern portions of the lake. 

lighter winds return tuesday and wednesday as high pressure builds
into the region. 


lmz080-669-671-673-675-777-779-870-872-874-876-878-191545-
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-
302 am cdt fri jun 19 2026

sheboygan wi to pentwater mi south...

.today...northwest winds 10 to 20 kt backing to south 10 to
15 kt. waves 2 to 4 ft. 
.tonight...south winds 10 to 15 kt becoming west 10 to 20 kt.
slight chance of showers and thunderstorms in the evening, then
chance of showers and slight chance of thunderstorms overnight.
waves 1 to 2 ft. 
.saturday...west winds 10 to 20 kt diminishing to 10 to 15 kt.
waves 1 to 3 ft. 
.saturday night...southwest winds 5 to 10 kt veering to north.
waves 1 to 2 ft. 
.sunday...east winds 10 to 15 kt increasing to 30 kt in the
afternoon. chance of showers in the morning, then showers likely
in the afternoon. waves 1 ft or less building to 3 to 5 ft. 
.sunday night...northeast gales to 35 kt diminishing to 30 kt.
showers likely. waves 5 to 8 ft occasionally to 10 ft. 
.monday...northeast winds to 30 kt becoming north. waves 6 to
9 ft occasionally to 12 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.  

$$

fzus63 kmkx 190802
glflm 
expires:202606191545;;004549

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
302 am cdt fri jun 19 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...

a light northwest breeze continues over lake michigan this
morning as low pressure around 29.3 inches lingers near the saint
lawrence river / gulf. winds turn south for a brief period this
afternoon as a weak trough of low pressure approaches the lake. it
crosses northern portions of the lake late tonight with nearly
calm winds underneath it and light southwest to west winds 
further south. winds then remain relatively light and variable 
until sunday. 

low pressure tracks northeastward from the central great plains 
on sunday, reaching illinois sunday afternoon then the ohio river
valley by monday morning. east winds overspread lake michigan
sunday afternoon, becoming gusty over southern portions of the
lake and turning northeast later sunday into sunday night (as the
low makes its closest approach). winds turn north and remain gusty
into monday, particularly over southern portions of the lake. 

lighter winds return tuesday and wednesday as high pressure builds
into the region. 


lmz261-362-364-366-563-565-567-868-191545-
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-
302 am cdt fri jun 19 2026

sheboygan wi to pentwater mi north...

.today...northwest winds 10 to 20 kt becoming southwest. waves
1 to 3 ft. 
.tonight...southwest winds 10 to 20 kt diminishing to 10 to
15 kt. chance of showers. waves 1 to 2 ft. 
.saturday...southwest winds 10 to 15 kt becoming west. waves 1 to
2 ft. 
.saturday night...northwest winds 10 to 15 kt veering to
northeast. waves 1 ft or less. 
.sunday...northeast winds 5 to 10 kt becoming east. waves 1 to
2 ft. 
.sunday night...northeast winds 10 to 20 kt increasing to 15 to
25 kt. chance of showers. waves 1 to 3 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
7 ft occasionally to 9 ft subsiding to 4 to 6 ft occasionally to
8 ft. 
.tuesday...north winds 10 to 15 kt increasing to 10 to 20 kt.
waves 1 to 2 ft.  

$$

fzus63 kmqt 190801
glfls 
expires:202606192000;;004431

open lake forecast for lake superior
national weather service marquette mi
400 am edt fri jun 19 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... 

weak surface ridging this morning gives way to another 29.8 inch 
trough moving through northern wi this evening. ridging over the mid-
mississippi valley builds to 30.0 inches tonight into saturday, 
supporting weak 29.9 inches ridging over lake superior by saturday 
afternoon. ridging continues into monday, when it builds to 30.1 
inches and then 30.2 inches by tuesday morning. a weak 30.0 inch low 
moves through the great lakes wednesday. 




lsz162-192000-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
400 am edt fri jun 19 2026 /300 am cdt fri jun 19 2026/

.early this morning...west winds 5 to 15 knots. waves calm to
2 feet. 
.today...west winds 5 to 15 knots backing southwest in the
afternoon. a chance of showers and a slight chance of
thunderstorms by mid afternoon. waves calm to 2 feet. 
.tonight...west winds 5 to 15 knots. a slight chance of rain
showers. waves calm to 2 feet. 
.saturday...west winds 5 to 15 knots backing southwest late. a
slight chance of showers through early afternoon. waves calm to
2 feet. 
.saturday night...west winds 5 to 15 knots becoming northwest
less than 10 knots after midnight. waves calm to 2 feet. 
.sunday...southwest winds less than 10 knots becoming east 5 to
15 knots by mid afternoon. 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 5 to 15 knots becoming north 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. 

$$

fzus63 kmqt 190801
glfls 
expires:202606192000;;004432

open lake forecast for lake superior
national weather service marquette mi
400 am edt fri jun 19 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... 

weak surface ridging this morning gives way to another 29.8 inch 
trough moving through northern wi this evening. ridging over the mid-
mississippi valley builds to 30.0 inches tonight into saturday, 
supporting weak 29.9 inches ridging over lake superior by saturday 
afternoon. ridging continues into monday, when it builds to 30.1 
inches and then 30.2 inches by tuesday morning. a weak 30.0 inch low 
moves through the great lakes wednesday. 




lsz263-192000-
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-
400 am edt fri jun 19 2026

.early this morning...west winds 5 to 15 knots. waves 1 to 3 feet
subsiding to calm to 2 feet. 
.today...west winds 5 to 15 knots becoming southwest 10 to
20 knots in the afternoon. waves building to 1 to 3 feet. 
.tonight...southwest winds 5 to 15 knots veering west after
midnight, then diminishing to less than 10 knots late. a slight
chance of rain showers. waves subsiding to calm to 2 feet. 
.saturday...west winds 5 to 15 knots backing southwest late. a
slight chance of rain showers. waves calm to 2 feet. 
.saturday night...west winds less than 10 knots. waves calm to
2 feet. 
.sunday...west winds less than 10 knots becoming northeast 5 to
15 knots by mid afternoon. 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. waves calm to
2 feet. 
.tuesday...northeast winds less than 10 knots becoming east 5 to
15 knots. waves calm to 2 feet. 

$$

fzus63 kmqt 190801
glfls 
expires:202606192000;;004433

open lake forecast for lake superior
national weather service marquette mi
400 am edt fri jun 19 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... 

weak surface ridging this morning gives way to another 29.8 inch 
trough moving through northern wi this evening. ridging over the mid-
mississippi valley builds to 30.0 inches tonight into saturday, 
supporting weak 29.9 inches ridging over lake superior by saturday 
afternoon. ridging continues into monday, when it builds to 30.1 
inches and then 30.2 inches by tuesday morning. a weak 30.0 inch low 
moves through the great lakes wednesday. 




lsz264-192000-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
400 am edt fri jun 19 2026

.early this morning...northwest winds 5 to 15 knots. waves 1 to
3 feet. 
.today...west winds 5 to 15 knots backing southwest late. waves
subsiding to calm to 2 feet. 
.tonight...west winds 5 to 15 knots diminishing to less than
10 knots after midnight. waves calm to 2 feet. 
.saturday...west winds 5 to 15 knots. a slight chance of rain
showers through early afternoon. waves calm to 2 feet. 
.saturday night...west winds 5 to 15 knots diminishing to less
than 10 knots after midnight. waves calm to 2 feet. 
.sunday...west winds less than 10 knots veering northwest by mid
afternoon. waves calm to 2 feet. 
.sunday night...north winds less than 10 knots increasing to 5 to
15 knots after midnight. waves calm to 2 feet. 
.monday...north winds 5 to 15 knots backing west. waves calm to
2 feet. 
.tuesday...south winds less than 10 knots backing east. waves
calm to 2 feet. 

$$

fzus63 kmqt 190801
glfls 
expires:202606192000;;004434

open lake forecast for lake superior
national weather service marquette mi
400 am edt fri jun 19 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... 

weak surface ridging this morning gives way to another 29.8 inch 
trough moving through northern wi this evening. ridging over the mid-
mississippi valley builds to 30.0 inches tonight into saturday, 
supporting weak 29.9 inches ridging over lake superior by saturday 
afternoon. ridging continues into monday, when it builds to 30.1 
inches and then 30.2 inches by tuesday morning. a weak 30.0 inch low 
moves through the great lakes wednesday. 




lsz265-192000-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
400 am edt fri jun 19 2026

.early this morning...west winds 15 to 25 knots. waves 1 to
3 feet. 
.today...west winds 15 to 25 knots diminishing to 5 to 15 knots.
waves subsiding to calm to 2 feet. 
.tonight...west winds 5 to 15 knots backing southwest after
midnight, then veering west late. a slight chance of showers.
waves calm to 2 feet. 
.saturday...west winds 5 to 15 knots veering northwest in the
afternoon. waves calm to 2 feet. 
.saturday night...southwest winds 5 to 15 knots. waves calm to
2 feet. 
.sunday...west winds 5 to 15 knots backing east by mid afternoon.
waves calm to 2 feet. 
.sunday night...north winds 5 to 15 knots backing northwest after
midnight. waves calm to 2 feet. 
.monday...north winds 5 to 15 knots backing northwest. waves calm
to 2 feet. 
.tuesday...east winds 5 to 15 knots. waves calm to 2 feet. 

$$

fzus63 kmqt 190801
glfls 
expires:202606192000;;004435

open lake forecast for lake superior
national weather service marquette mi
400 am edt fri jun 19 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... 

weak surface ridging this morning gives way to another 29.8 inch 
trough moving through northern wi this evening. ridging over the mid-
mississippi valley builds to 30.0 inches tonight into saturday, 
supporting weak 29.9 inches ridging over lake superior by saturday 
afternoon. ridging continues into monday, when it builds to 30.1 
inches and then 30.2 inches by tuesday morning. a weak 30.0 inch low 
moves through the great lakes wednesday. 




lsz266-192000-
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-
400 am edt fri jun 19 2026

.early this morning...northwest winds 15 to 25 knots. waves 2 to
4 feet. 
.today...northwest winds 15 to 25 knots becoming west 10 to
20 knots in the afternoon, then diminishing to 5 to 15 knots
late. waves subsiding to 1 to 3 feet. 
.tonight...west winds 5 to 15 knots. waves subsiding to calm to
2 feet. 
.saturday...northwest winds 5 to 15 knots. a slight chance of
showers through early afternoon. waves calm to 2 feet. 
.saturday night...northwest winds 5 to 15 knots backing west
after midnight. waves calm to 2 feet. 
.sunday...west winds 5 to 15 knots veering north by mid
afternoon. waves calm to 2 feet. 
.sunday night...north winds 5 to 15 knots. waves calm to 2 feet. 
.monday...northwest 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. 
.tuesday...northwest winds 5 to 15 knots veering east. waves calm
to 2 feet. 

$$

fzus63 kmqt 190801
glfls 
expires:202606192000;;004436

open lake forecast for lake superior
national weather service marquette mi
400 am edt fri jun 19 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... 

weak surface ridging this morning gives way to another 29.8 inch 
trough moving through northern wi this evening. ridging over the mid-
mississippi valley builds to 30.0 inches tonight into saturday, 
supporting weak 29.9 inches ridging over lake superior by saturday 
afternoon. ridging continues into monday, when it builds to 30.1 
inches and then 30.2 inches by tuesday morning. a weak 30.0 inch low 
moves through the great lakes wednesday. 




lsz267-192000-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
400 am edt fri jun 19 2026

.early this morning...northwest winds 10 to 20 knots. waves 1 to
3 feet building to 2 to 4 feet. 
.today...northwest winds 10 to 20 knots becoming west 15 to
25 knots in the afternoon, then diminishing to 10 to 20 knots
late. waves 2 to 4 feet. 
.tonight...west winds 5 to 15 knots. waves subsiding to calm to
2 feet. 
.saturday...northeast winds 5 to 15 knots backing northwest in
the afternoon. waves calm to 2 feet. 
.saturday night...west winds 5 to 15 knots. waves calm to 2 feet.
.sunday...west winds 5 to 15 knots veering northwest by mid
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 diminishing to 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. waves calm to 2 feet. 

$$