fzus61 kbuf 051401
glflo 
expires:202606052100;;223361

open lake forecast for lake ontario
national weather service buffalo ny
1001 am edt fri jun 5 2026

for waters beyond five nautical miles of shore on lake ontario

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

.synopsis...a 30.2 inch high along the eastern seaboard will drift 
off the southeast coast today. a weak cold front will settle south 
across the lower great lakes saturday and saturday night. another 
30.2 inch high over quebec sunday will build southeast into new 
england monday, then remain near or just off the east coast through 
wednesday.


loz063>065-052100-
lake ontario open waters from hamlin beach to the saint lawrence
river-
1001 am edt fri jun 5 2026

.this afternoon...south winds 5 to 10 knots becoming southeast.
waves 1 foot or less. 
.tonight...south winds 5 to 15 knots. a chance of showers after
midnight. showers likely late. waves 2 feet or less. 
.saturday...southwest winds 10 to 15 knots becoming west 15 to
20 knots. showers likely in the morning, then showers likely with
a chance of thunderstorms in the afternoon. waves 1 to 3 feet
building to 3 to 5 feet. 
.saturday night...west winds 15 to 20 knots diminishing to 10 to
15 knots. a chance of showers and thunderstorms in the evening,
then a chance of showers overnight. waves 3 to 5 feet subsiding
to 1 to 3 feet. 
.sunday...west winds 5 to 15 knots becoming northeast. waves 1 to
3 feet subsiding to 1 foot or less. 
.monday...northeast winds 5 to 10 knots becoming southeast. waves
1 foot or less. 
.tuesday...southeast winds 10 knots or less becoming south. waves
1 foot or less. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kbuf 051401
glflo 
expires:202606052100;;223360

open lake forecast for lake ontario
national weather service buffalo ny
1001 am edt fri jun 5 2026

for waters beyond five nautical miles of shore on lake ontario

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

.synopsis...a 30.2 inch high along the eastern seaboard will drift 
off the southeast coast today. a weak cold front will settle south 
across the lower great lakes saturday and saturday night. another 
30.2 inch high over quebec sunday will build southeast into new 
england monday, then remain near or just off the east coast through 
wednesday.


loz062-052100-
lake ontario open waters from the niagara river to hamlin beach-
1001 am edt fri jun 5 2026

.this afternoon...southwest winds 5 to 15 knots becoming south.
waves 1 foot or less building to 1 to 3 feet. 
.tonight...southwest winds 10 to 15 knots increasing to 15 to
20 knots. showers after midnight. waves 2 to 4 feet subsiding to
1 to 3 feet. 
.saturday...southwest winds 15 to 20 knots. showers likely in the
morning, then a chance of showers and thunderstorms in the
afternoon. waves 2 to 4 feet building to 3 to 5 feet. 
.saturday night...west winds 10 to 15 knots becoming northwest. a
chance of showers and thunderstorms in the evening. waves 2 to
4 feet subsiding to 1 to 3 feet. 
.sunday...west winds 5 to 10 knots becoming east. waves 2 feet or
less. 
.monday...east winds 5 to 15 knots. waves 2 feet or less. 
.tuesday...east winds 10 knots or less becoming southeast. waves
1 foot or less. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 051400
glfle 
expires:202606052015;;223279

open lake forecast for lake erie
national weather service cleveland oh
1000 am edt fri jun 5 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 ridge of high pressure averaging 30.10 inches exits to the
southeast today. a cold front with pressure of 29.80 inches will
push south across lake erie saturday evening. another ridge 
averaging 30.10 inches builds across lake erie behind the front 
and remains in control through tuesday.


lez061-167>169-052015-
ripley to buffalo ny extending from 5nm off shoreline to us-
canadian border-willowick to geneva-on-the-
lake oh beyond 5nm off shoreline to us-canadian border-geneva-on-
the-lake to conneaut oh beyond 5 nm off shoreline to us-
canadian border-
conneaut oh to ripley ny beyond 5 nm off shoreline to us-
canadian border-
1000 am edt fri jun 5 2026

.this afternoon...southwest winds 5 to 10 knots. waves 1 to
2 feet. 
.tonight...southwest winds 10 to 15 knots increasing to 15 to
20 knots. showers likely with a slight chance of thunderstorms
after midnight. waves 1 to 3 feet building to 3 to 5 feet. 
.saturday...southwest winds 15 to 20 knots diminishing to 10 to
15 knots. a chance of showers in the morning, then showers likely
with a chance of thunderstorms in the afternoon. waves 3 to
5 feet subsiding to 2 to 4 feet. 
.saturday night...west winds 5 to 15 knots becoming northwest
less than 10 knots. showers likely with a chance of thunderstorms
in the evening. waves 1 to 3 feet. 
.sunday...northwest winds 10 knots or less becoming east. waves
1 foot or less. 
.monday...east winds 5 to 15 knots becoming southeast. waves
1 foot or less building to 1 to 3 feet. 
.tuesday...southeast winds 5 to 10 knots becoming south. a chance
of showers tuesday night. waves 2 feet or less. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 051400
glfle 
expires:202606052015;;223278

open lake forecast for lake erie
national weather service cleveland oh
1000 am edt fri jun 5 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 ridge of high pressure averaging 30.10 inches exits to the
southeast today. a cold front with pressure of 29.80 inches will
push south across lake erie saturday evening. another ridge 
averaging 30.10 inches builds across lake erie behind the front 
and remains in control through tuesday.


lez162>166-052015-
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-
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-
1000 am edt fri jun 5 2026

.this afternoon...southwest winds 10 to 15 knots increasing to
15 to 20 knots. waves 1 to 3 feet. 
.tonight...southwest winds 15 to 20 knots. a slight chance of
showers and thunderstorms late in the evening. showers likely
with a slight chance of thunderstorms after midnight, then a
chance of showers with a slight chance of thunderstorms late.
waves 1 to 3 feet building to 3 to 5 feet. 
.saturday...southwest winds 15 to 20 knots becoming west 10 to
15 knots. a chance of showers in the morning, then showers likely
with a chance of thunderstorms in the afternoon. waves 3 to
5 feet subsiding to 1 to 3 feet. 
.saturday night...west winds 5 to 15 knots becoming northwest. a
chance of showers and thunderstorms in the evening. waves 2 feet
or less. 
.sunday...north winds 5 to 10 knots becoming east. waves 1 foot
or less. 
.monday...east winds 5 to 15 knots becoming southeast. waves 1 to
3 feet. 
.tuesday...south winds 5 to 10 knots. a chance of showers and
thunderstorms during the day, then a chance of showers tuesday
night. waves 2 feet or less. 

winds and waves higher in and near thunderstorms.

$$

fzus63 kdtx 051326
glfsc 
expires:202606052130;;222634

lake st clair forecast
national weather service detroit/pontiac mi
926 am edt fri jun 5 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 weak trough, 29.70 inches, tracks across the great
lakes today followed by a cold front saturday. this leads to
periods of showers and thunderstorms late this afternoon through
saturday afternoon. high pressure returns sunday and monday.


lcz460-052130-
lake st clair-
926 am edt fri jun 5 2026

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

$$

fzus63 kdtx 051326
glflh 
expires:202606052130;;222635

open lake forecast for lake huron
national weather service detroit/pontiac mi
926 am edt fri jun 5 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 weak trough, 29.70 inches, tracks across the great
lakes today followed by a cold front saturday. this leads to
periods of showers and thunderstorms late this afternoon through
saturday afternoon. high pressure returns sunday and monday.


lhz361-052130-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
926 am edt fri jun 5 2026

.rest of today...south winds 5 to 10 knots. a chance of showers
late in the morning...then showers likely in the afternoon. waves
2 feet or less. 
.tonight...southeast winds 5 to 10 knots early in the evening
becoming light and variable. showers likely in the evening...then
a chance of showers after midnight. waves 2 feet or less. 
.saturday...west winds 5 to 10 knots increasing to 10 to 15 knots
in the late morning and afternoon. a chance of showers in the
morning. waves 1 to 3 feet. 
.saturday night...northwest winds 10 to 15 knots decreasing to
5 to 10 knots after midnight. waves 1 to 3 feet. 
.sunday...north winds 5 to 10 knots in the morning becoming light
and variable...then becoming southeast 5 to 10 knots late in the
evening. waves 2 feet or less. 
.monday...east winds 5 to 10 knots increasing to 10 to 15 knots
in the late morning and early afternoon...then increasing to
15 to 20 knots early in the evening becoming southeast 10 to
15 knots by midnight. waves 2 feet or less building to 3 to
5 feet. 
.tuesday...east winds 10 to 15 knots decreasing to 5 to 10 knots
by midnight. a chance of showers. waves 1 to 3 feet building to
2 to 4 feet. 


$$

fzus63 kdtx 051326
glflh 
expires:202606052130;;222636

open lake forecast for lake huron
national weather service detroit/pontiac mi
926 am edt fri jun 5 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 weak trough, 29.70 inches, tracks across the great
lakes today followed by a cold front saturday. this leads to
periods of showers and thunderstorms late this afternoon through
saturday afternoon. high pressure returns sunday and monday.


lhz362-363-052130-
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-
926 am edt fri jun 5 2026

.rest of today...south winds 10 to 15 knots. a chance of showers
in the afternoon. waves 1 to 3 feet. 
.tonight...south winds 10 to 15 knots decreasing to 5 to 10 knots
after midnight...then veering to the southwest early in the
morning. showers likely in the evening...then a chance of showers
after midnight. waves 1 to 3 feet. 
.saturday...southwest winds 5 to 10 knots. a chance of showers.
waves 1 to 3 feet. 
.saturday night...northwest winds 5 to 10 knots increasing to
10 to 15 knots in the late evening and overnight. waves 2 to
4 feet. 
.sunday...north winds 5 to 10 knots in the morning becoming light
and variable. waves 2 feet or less. 
.monday...east winds 5 to 10 knots becoming southeast 10 to
15 knots by midnight. waves 2 feet or less. 
.tuesday...southeast winds 10 to 15 knots decreasing to 5 to
10 knots by midnight. a chance of showers by midnight. waves 1 to
3 feet. 


$$

fzus63 kdtx 051326
glflh 
expires:202606052130;;222637

open lake forecast for lake huron
national weather service detroit/pontiac mi
926 am edt fri jun 5 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 weak trough, 29.70 inches, tracks across the great
lakes today followed by a cold front saturday. this leads to
periods of showers and thunderstorms late this afternoon through
saturday afternoon. high pressure returns sunday and monday.


lhz462>464-052130-
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-
926 am edt fri jun 5 2026

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


$$

fzus63 kmkx 051408
glflm 
expires:202606052130;;223740

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
908 am cdt fri jun 5 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...

broad low pressure of 29.6 inches will slowly move across the 
northern great lakes this afternoon and evening. its weak and
decaying cold front will then follow for saturday afternoon. thus
modest south winds today will shift west to southwest tonight and
saturday morning, followed by light and variable winds saturday
afternoon. light northeast winds will then prevail saturday night
and sunday as high pressure around 30.0 inches builds across the 
region. looking ahead, the start of next week will bring an 
additional low pressure system to develop over the great plains 
and bring a return of southerly winds to the upper great lakes.


lmz261-362-364-366-563-565-567-868-052130-
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-
908 am cdt fri jun 5 2026

sheboygan wi to pentwater mi north...

.rest of today...south winds 10 to 20 kt. numerous showers 
through mid morning, then slight chance of showers and 
thunderstorms this afternoon. waves 3 to 5 ft. 
.tonight...south winds 10 to 20 kt becoming west 10 to 15 kt.
slight chance of showers and thunderstorms in the evening, then
chance of showers and slight chance of thunderstorms overnight.
waves 3 to 5 ft subsiding to 2 to 4 ft. 
.saturday...west winds 5 to 10 kt becoming southwest 10 to 15 kt.
waves 1 to 3 ft. 
.saturday night...northeast winds 10 to 15 kt diminishing to 5 to
10 kt. waves 1 to 2 ft. 
.sunday...northeast winds 5 to 10 kt increasing to 10 to 20 kt in
the afternoon. waves 1 ft or less. 
.sunday night...east winds 10 to 20 kt becoming southeast. waves
1 to 2 ft building to 2 to 4 ft. 
.monday...southeast winds 10 to 20 kt becoming east. waves 2 to
4 ft. 
.tuesday...southeast winds 10 to 20 kt becoming south. chance of
showers. waves 2 to 4 ft.  

$$

fzus63 kmkx 051408
glflm 
expires:202606052130;;223741

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
908 am cdt fri jun 5 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...

broad low pressure of 29.6 inches will slowly move across the 
northern great lakes this afternoon and evening. its weak and
decaying cold front will then follow for saturday afternoon. thus
modest south winds today will shift west to southwest tonight and
saturday morning, followed by light and variable winds saturday
afternoon. light northeast winds will then prevail saturday night
and sunday as high pressure around 30.0 inches builds across the 
region. looking ahead, the start of next week will bring an 
additional low pressure system to develop over the great plains 
and bring a return of southerly winds to the upper great lakes.


lmz080-669-671-673-675-777-779-870-872-874-876-878-052130-
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-
908 am cdt fri jun 5 2026

sheboygan wi to pentwater mi south...

.rest of today...south winds 10 to 20 kt increasing to 15 to
20 kt. showers with isolated thunderstorms through mid morning, 
then showers with a chance of thunderstorms this afternoon. waves 
3 to 5 ft. 
.tonight...southwest winds 15 to 20 kt diminishing to 10 to 15 
kt. chance of showers and thunderstorms. waves 3 to 5 ft subsiding
to 2 to 4 ft. 
.saturday...southwest winds 10 to 20 kt diminishing to 10 to
15 kt late in the morning, then becoming southwest 10 to 15 kt
early in the afternoon backing to east 5 to 10 kt late. waves
1 to 3 ft. 
.saturday night...northeast winds 5 to 10 kt. waves 1 to 2 ft. 
.sunday...northeast winds 5 to 10 kt increasing to 10 to 15 kt.
waves 1 ft or less. 
.sunday night...northeast winds 10 to 15 kt becoming east 10 to
20 kt. waves 1 to 3 ft building to 2 to 4 ft. 
.monday...southeast winds 10 to 20 kt. waves 3 to 5 ft. 
.tuesday...south winds 10 to 20 kt. chance of showers. waves 2 to
4 ft.  

$$

fzus63 kmqt 051401
glfls 
expires:202606052000;;223356

open lake forecast for lake superior
national weather service marquette mi
1000 am edt fri jun 5 2026

for waters beyond 5 nautical miles of shore on lake superior.

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

.synopsis... 

a 29.7 inch low over northwest ontario is extending 29.8 inch 
troughing over lake superior this morning. the low moves slowly east 
along the northern shores of the lake today while deepening to 29.6 
inches. by early saturday morning, the low moves into quebec, 
shifting southeastwards towards the st. lawrence seaway through the 
day as weak 29.9 inch ridging moves over lake superior late. in the 
meantime, a 29.3 inch low pressure forms in the lee of the rockies. 
ridging over lake superior builds to 30.1 inches by sunday as the 
colorado low weakens to 29.4 inches and moves into the western 
dakotas. by monday afternoon, expect lake superior to be between a 
29.8 inch trough over minnesota and 30.2 inch high pressure over new 
england. the troughing weakens to 29.9 inches before moving over 
lake superior on tuesday. pressure continues to fall over lake 
superior through wednesday as a second colorado low moves in, 
reaching 29.6 inches by late wednesday.




lsz265-052000-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
1001 am edt fri jun 5 2026

.rest of today...southwest winds 5 to 15 knots backing east in
the afternoon. a slight chance of showers. a slight chance of
thunderstorms by mid afternoon. waves calm to 2 feet. 
.tonight...south winds 5 to 15 knots veering west after midnight.
a slight chance of thunderstorms through midnight. a slight
chance of showers. waves calm to 2 feet. 
.saturday...northwest winds 5 to 15 knots veering north late.
waves calm to 2 feet. 
.saturday night...northwest winds less than 10 knots becoming
east 5 to 15 knots after midnight. waves calm to 2 feet. 
.sunday...east winds 5 to 15 knots increasing to 10 to 20 knots
by mid afternoon. waves building to 1 to 3 feet. 
.sunday night...southeast winds 10 to 20 knots. waves subsiding
to calm to 2 feet, then building to 1 to 3 feet. 
.monday...southeast winds 15 to 25 knots. waves building to 3 to
5 feet occasionally to 7 feet, then subsiding to 2 to 4 feet. 
.tuesday...southeast winds 10 to 20 knots becoming south 5 to
15 knots. a chance of showers. waves subsiding to calm to 2 feet.

$$

fzus63 kmqt 051401
glfls 
expires:202606052000;;223354

open lake forecast for lake superior
national weather service marquette mi
1000 am edt fri jun 5 2026

for waters beyond 5 nautical miles of shore on lake superior.

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

.synopsis... 

a 29.7 inch low over northwest ontario is extending 29.8 inch 
troughing over lake superior this morning. the low moves slowly east 
along the northern shores of the lake today while deepening to 29.6 
inches. by early saturday morning, the low moves into quebec, 
shifting southeastwards towards the st. lawrence seaway through the 
day as weak 29.9 inch ridging moves over lake superior late. in the 
meantime, a 29.3 inch low pressure forms in the lee of the rockies. 
ridging over lake superior builds to 30.1 inches by sunday as the 
colorado low weakens to 29.4 inches and moves into the western 
dakotas. by monday afternoon, expect lake superior to be between a 
29.8 inch trough over minnesota and 30.2 inch high pressure over new 
england. the troughing weakens to 29.9 inches before moving over 
lake superior on tuesday. pressure continues to fall over lake 
superior through wednesday as a second colorado low moves in, 
reaching 29.6 inches by late wednesday.




lsz263-052000-
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-
1001 am edt fri jun 5 2026

.rest of today...southwest winds less than 10 knots increasing to
5 to 15 knots in the afternoon. a slight chance of showers. a
slight chance of thunderstorms by mid afternoon. waves calm to
2 feet. 
.tonight...southwest winds 5 to 15 knots veering west after
midnight. a slight chance of showers and thunderstorms through
midnight. waves calm to 2 feet. 
.saturday...west winds less than 10 knots becoming south 5 to
15 knots in the afternoon, then diminishing to less than 10 knots
late. waves calm to 2 feet. 
.saturday night...east winds 5 to 15 knots. waves calm to 2 feet.
.sunday...east winds 5 to 15 knots becoming northeast 10 to
20 knots by mid afternoon. waves building to 1 to 3 feet. 
.sunday night...east winds 10 to 20 knots becoming southeast 5 to
15 knots after midnight. waves building to 2 to 4 feet, then
subsiding to calm to 2 feet. 
.monday...east winds 5 to 15 knots veering southeast. a chance of
showers. showers likely. waves building to 2 to 4 feet, then
subsiding to 1 to 3 feet. 
.tuesday...northeast winds 5 to 15 knots. waves subsiding to calm
to 2 feet. 

$$

fzus63 kmqt 051401
glfls 
expires:202606052000;;223353

open lake forecast for lake superior
national weather service marquette mi
1000 am edt fri jun 5 2026

for waters beyond 5 nautical miles of shore on lake superior.

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

.synopsis... 

a 29.7 inch low over northwest ontario is extending 29.8 inch 
troughing over lake superior this morning. the low moves slowly east 
along the northern shores of the lake today while deepening to 29.6 
inches. by early saturday morning, the low moves into quebec, 
shifting southeastwards towards the st. lawrence seaway through the 
day as weak 29.9 inch ridging moves over lake superior late. in the 
meantime, a 29.3 inch low pressure forms in the lee of the rockies. 
ridging over lake superior builds to 30.1 inches by sunday as the 
colorado low weakens to 29.4 inches and moves into the western 
dakotas. by monday afternoon, expect lake superior to be between a 
29.8 inch trough over minnesota and 30.2 inch high pressure over new 
england. the troughing weakens to 29.9 inches before moving over 
lake superior on tuesday. pressure continues to fall over lake 
superior through wednesday as a second colorado low moves in, 
reaching 29.6 inches by late wednesday.




lsz162-052000-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
1001 am edt fri jun 5 2026 /901 am cdt fri jun 5 2026/

.rest of today...southwest winds 5 to 15 knots. a slight chance
of showers and thunderstorms by mid afternoon. waves calm to
2 feet. 
.tonight...west winds 5 to 15 knots veering northwest late. a
slight chance of showers and thunderstorms through midnight.
waves calm to 2 feet. 
.saturday...west winds 5 to 15 knots backing south in the
afternoon, then backing east late. waves calm to 2 feet. 
.saturday night...east winds 5 to 15 knots backing northeast
after midnight. waves calm to 2 feet. 
.sunday...northeast winds 10 to 20 knots. waves building to 2 to
4 feet. 
.sunday night...northeast winds 10 to 20 knots diminishing to
5 to 15 knots after midnight. waves subsiding to calm to 2 feet. 
.monday...northeast winds 10 to 20 knots diminishing to 5 to
15 knots. a chance of showers. showers likely. waves calm to
2 feet. 
.tuesday...northeast winds 5 to 15 knots. waves calm to 2 feet. 

$$

fzus63 kmqt 051401
glfls 
expires:202606052000;;223358

open lake forecast for lake superior
national weather service marquette mi
1000 am edt fri jun 5 2026

for waters beyond 5 nautical miles of shore on lake superior.

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

.synopsis... 

a 29.7 inch low over northwest ontario is extending 29.8 inch 
troughing over lake superior this morning. the low moves slowly east 
along the northern shores of the lake today while deepening to 29.6 
inches. by early saturday morning, the low moves into quebec, 
shifting southeastwards towards the st. lawrence seaway through the 
day as weak 29.9 inch ridging moves over lake superior late. in the 
meantime, a 29.3 inch low pressure forms in the lee of the rockies. 
ridging over lake superior builds to 30.1 inches by sunday as the 
colorado low weakens to 29.4 inches and moves into the western 
dakotas. by monday afternoon, expect lake superior to be between a 
29.8 inch trough over minnesota and 30.2 inch high pressure over new 
england. the troughing weakens to 29.9 inches before moving over 
lake superior on tuesday. pressure continues to fall over lake 
superior through wednesday as a second colorado low moves in, 
reaching 29.6 inches by late wednesday.




lsz267-052000-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
1001 am edt fri jun 5 2026

.rest of today...south winds 10 to 20 knots diminishing to 5 to
15 knots in the afternoon, then backing southeast late. a chance
of showers. waves calm to 2 feet. 
.tonight...south winds 5 to 15 knots veering west after midnight.
a chance of rain showers. a slight chance of thunderstorms after
midnight. waves calm to 2 feet. 
.saturday...west winds 10 to 20 knots. waves calm to 2 feet. 
.saturday night...northwest winds 5 to 15 knots veering north
after midnight. waves calm to 2 feet. 
.sunday...east winds 5 to 15 knots backing northeast by mid
afternoon. waves calm to 2 feet. 
.sunday night...southeast winds 5 to 15 knots increasing to 10 to
20 knots after midnight. waves calm to 2 feet. 
.monday...southeast winds 15 to 25 knots. waves building to 3 to
5 feet occasionally to 7 feet, then subsiding to 2 to 4 feet. 
.tuesday...southeast winds 10 to 20 knots veering south. a chance
of showers. waves subsiding to calm to 2 feet. 

$$

fzus63 kmqt 051401
glfls 
expires:202606052000;;223355

open lake forecast for lake superior
national weather service marquette mi
1000 am edt fri jun 5 2026

for waters beyond 5 nautical miles of shore on lake superior.

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

.synopsis... 

a 29.7 inch low over northwest ontario is extending 29.8 inch 
troughing over lake superior this morning. the low moves slowly east 
along the northern shores of the lake today while deepening to 29.6 
inches. by early saturday morning, the low moves into quebec, 
shifting southeastwards towards the st. lawrence seaway through the 
day as weak 29.9 inch ridging moves over lake superior late. in the 
meantime, a 29.3 inch low pressure forms in the lee of the rockies. 
ridging over lake superior builds to 30.1 inches by sunday as the 
colorado low weakens to 29.4 inches and moves into the western 
dakotas. by monday afternoon, expect lake superior to be between a 
29.8 inch trough over minnesota and 30.2 inch high pressure over new 
england. the troughing weakens to 29.9 inches before moving over 
lake superior on tuesday. pressure continues to fall over lake 
superior through wednesday as a second colorado low moves in, 
reaching 29.6 inches by late wednesday.




lsz264-052000-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
1001 am edt fri jun 5 2026

.rest of today...southwest winds less than 10 knots backing south
late. waves calm to 2 feet. 
.tonight...southwest winds less than 10 knots veering west after
midnight, then becoming northwest 5 to 15 knots late. a slight
chance of rain showers after midnight. waves calm to 2 feet. 
.saturday...northwest winds 5 to 15 knots backing west in the
afternoon. waves calm to 2 feet. 
.saturday night...west winds less than 10 knots backing east
after midnight. waves calm to 2 feet. 
.sunday...east winds 5 to 15 knots. waves calm to 2 feet. 
.sunday night...southeast winds 10 to 20 knots diminishing to
5 to 15 knots after midnight. waves calm to 2 feet. 
.monday...southeast winds 10 to 20 knots. a chance of showers.
waves building to 3 to 5 feet occasionally to 7 feet, then
subsiding to 2 to 4 feet. 
.tuesday...southeast winds 5 to 15 knots veering south. a chance
of rain showers. waves subsiding to calm to 2 feet. 

$$

fzus63 kmqt 051401
glfls 
expires:202606052000;;223357

open lake forecast for lake superior
national weather service marquette mi
1000 am edt fri jun 5 2026

for waters beyond 5 nautical miles of shore on lake superior.

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

.synopsis... 

a 29.7 inch low over northwest ontario is extending 29.8 inch 
troughing over lake superior this morning. the low moves slowly east 
along the northern shores of the lake today while deepening to 29.6 
inches. by early saturday morning, the low moves into quebec, 
shifting southeastwards towards the st. lawrence seaway through the 
day as weak 29.9 inch ridging moves over lake superior late. in the 
meantime, a 29.3 inch low pressure forms in the lee of the rockies. 
ridging over lake superior builds to 30.1 inches by sunday as the 
colorado low weakens to 29.4 inches and moves into the western 
dakotas. by monday afternoon, expect lake superior to be between a 
29.8 inch trough over minnesota and 30.2 inch high pressure over new 
england. the troughing weakens to 29.9 inches before moving over 
lake superior on tuesday. pressure continues to fall over lake 
superior through wednesday as a second colorado low moves in, 
reaching 29.6 inches by late wednesday.




lsz266-052000-
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-
1001 am edt fri jun 5 2026

.rest of today...south winds 5 to 15 knots veering southwest in
the afternoon, then backing east late. a chance of showers. a
slight chance of thunderstorms by mid afternoon. waves calm to
2 feet. 
.tonight...south winds 5 to 15 knots veering west after midnight.
a slight chance of showers and thunderstorms. waves calm to
2 feet. 
.saturday...northwest winds 5 to 15 knots increasing to 10 to
20 knots in the afternoon, then diminishing to 5 to 15 knots
late. waves calm to 2 feet. 
.saturday night...northwest winds 5 to 15 knots veering east
after midnight. waves calm to 2 feet. 
.sunday...east winds 5 to 15 knots. waves calm to 2 feet. 
.sunday night...southeast winds 10 to 20 knots. waves building to
1 to 3 feet. 
.monday...southeast winds 15 to 25 knots. a chance of showers.
waves building to 3 to 5 feet occasionally to 7 feet, then
subsiding to 2 to 4 feet. 
.tuesday...southeast winds 10 to 20 knots veering south. a chance
of showers. waves subsiding to calm to 2 feet. 

$$