fzus61 kbuf 292002
glflo 
expires:202606300300;;125382

open lake forecast for lake ontario
national weather service buffalo ny
402 pm edt mon jun 29 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 30.1 inch high draped from quebec to eastern new york 
will slide east into new england today, then offshore by tuesday. a 
warm front will cross the lake on tuesday, then another broad 30.1 
inch high will build into the ohio valley and mid atlantic by 
wednesday, where it will remain through at least thursday. a weak 
29.9 inch trough will then approach the lake friday into saturday.


loz063>065-300300-
lake ontario open waters from hamlin beach to the saint lawrence
river-
402 pm edt mon jun 29 2026

.tonight...northeast winds 10 knots or less becoming south. waves
1 foot or less. 
.tuesday...south winds 5 to 10 knots. a chance of showers and
thunderstorms. waves 2 feet or less. 
.tuesday night...southwest winds 5 to 15 knots. waves 2 feet or
less. 
.wednesday...southwest winds 10 to 15 knots becoming west. waves
1 to 2 feet. 
.wednesday night...west winds 5 to 15 knots becoming southwest.
waves 1 to 3 feet. 
.thursday...southwest winds 10 to 15 knots becoming west. waves
1 to 3 feet. 
.friday...west winds 5 to 15 knots. a chance of showers and
thunderstorms. waves 1 to 2 feet. 
.saturday...west 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 kbuf 292002
glflo 
expires:202606300300;;125381

open lake forecast for lake ontario
national weather service buffalo ny
402 pm edt mon jun 29 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 30.1 inch high draped from quebec to eastern new york 
will slide east into new england today, then offshore by tuesday. a 
warm front will cross the lake on tuesday, then another broad 30.1 
inch high will build into the ohio valley and mid atlantic by 
wednesday, where it will remain through at least thursday. a weak 
29.9 inch trough will then approach the lake friday into saturday.


loz062-300300-
lake ontario open waters from the niagara river to hamlin beach-
402 pm edt mon jun 29 2026

.tonight...east winds 5 to 10 knots becoming south. waves 1 foot
or less. 
.tuesday...southwest winds 10 knots or less increasing to 10 to
15 knots. a chance of showers and thunderstorms in the morning.
waves 2 feet or less. 
.tuesday night...southwest winds 10 to 15 knots. waves 1 to
3 feet. 
.wednesday...southwest winds 10 to 15 knots increasing to 15 to
20 knots. waves 1 to 3 feet. 
.wednesday night...southwest winds 15 to 20 knots diminishing to
10 to 15 knots. waves 1 to 3 feet. 
.thursday...southwest winds 10 to 15 knots. waves 1 to 3 feet. 
.friday...west winds 5 to 10 knots becoming southwest. a chance
of showers and thunderstorms. waves 1 to 2 feet. 
.saturday...west winds 5 to 10 knots becoming northwest. a chance
of showers and thunderstorms. waves 1 foot or less. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 291950
glfle 
expires:202606300230;;124896

open lake forecast for lake erie
national weather service cleveland oh
350 pm edt mon jun 29 2026

for waters beyond five nautical miles of shore on lake erie

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

.synopsis...
high pressure averaging 30.10 inches extends from new england to 
the eastern great lakes. a warm front will lift north across lake 
erie tonight. a ridge averaging 30.00 inches will build from the 
south behind the front on tuesday and remain through much of the 
week. a weak trough of 29.90 inches will slowly settle south 
towards lake erie friday night into saturday. 


lez061-165>169-300230-
ripley to buffalo ny extending from 5nm 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-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-
350 pm edt mon jun 29 2026

.tonight...east winds 5 to 10 knots becoming south. waves 2 feet
or less. 
.tuesday...south winds 5 to 10 knots becoming southwest. a slight
chance of showers early. waves 1 to 2 feet. 
.tuesday night...southwest winds 5 to 15 knots. waves 1 to
3 feet. 
.wednesday...southwest winds 10 to 15 knots. waves 1 to 3 feet. 
.wednesday night...southwest winds 10 to 15 knots. waves 1 to
3 feet. 
.thursday...southwest winds 5 to 15 knots. a chance of showers
and thunderstorms thursday night. waves 2 feet or less. 
.friday...southwest winds 5 to 10 knots. a chance of showers and
thunderstorms. waves 2 feet or less. 
.saturday...west 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 291950
glfle 
expires:202606300230;;124895

open lake forecast for lake erie
national weather service cleveland oh
350 pm edt mon jun 29 2026

for waters beyond five nautical miles of shore on lake erie

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

.synopsis...
high pressure averaging 30.10 inches extends from new england to 
the eastern great lakes. a warm front will lift north across lake 
erie tonight. a ridge averaging 30.00 inches will build from the 
south behind the front on tuesday and remain through much of the 
week. a weak trough of 29.90 inches will slowly settle south 
towards lake erie friday night into saturday. 


lez162>164-300230-
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-
350 pm edt mon jun 29 2026

.tonight...east winds 5 to 10 knots becoming south. waves 1 foot
or less. 
.tuesday...southwest winds 10 to 15 knots. waves 2 feet or less. 
.tuesday night...southwest winds 10 to 15 knots. waves 1 to
2 feet. 
.wednesday...southwest winds 5 to 10 knots. waves 2 feet or less.
.wednesday night...southwest winds 5 to 10 knots. waves around
1 foot. 
.thursday...southwest winds 5 to 15 knots. a chance of showers
and thunderstorms thursday night. waves 1 foot or less. 
.friday...southwest winds 5 to 10 knots becoming west. a chance
of showers and thunderstorms. waves 1 foot or less. 
.saturday...west winds 5 to 10 knots becoming south. a chance of
showers and thunderstorms. waves 1 foot or less. 

winds and waves higher in and near thunderstorms.

$$

fzus63 kdtx 291944
glfsc 
expires:202606300400;;124805

lake st clair forecast
national weather service detroit/pontiac mi
344 pm edt mon jun 29 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 warm front will gradually lift across the central
great lakes tonight into tuesday. a hot and humid air mass takes
residence through the week with prevailing south to southwest
winds as strong high pressure builds over the se us. this keeps
the favored storm track directed across the northern great lakes.


lcz460-300400-
lake st clair-
344 pm edt mon jun 29 2026

.tonight...south winds 5 to 10 knots. mostly clear. waves 2 feet or
less.
.tuesday...south winds 5 to 10 knots becoming southwest 10 to 15
knots in the afternoon. mostly sunny. waves 2 feet or less.
.tuesday night...southwest winds 10 to 15 knots diminishing to 5 to
10 knots after midnight. clear. waves 2 feet or less.
.wednesday...southwest winds 10 to 15 knots. sunny. waves 2 feet or
less.
.wednesday night...southwest winds 10 to 15 knots. clear. waves 2
feet or less.
.thursday...southwest winds 5 to 10 knots increasing to 10 to 15
knots in the afternoon and evening. sunny becoming mostly clear.
waves 2 feet or less.
.friday...southwest winds 5 to 10 knots. partly cloudy. showers
likely and a chance of thunderstorms. waves 2 feet or less.
.saturday...north winds 5 to 10 knots. partly cloudy. a chance of
showers and thunderstorms. waves 2 feet or less.

$$

fzus63 kdtx 291944
glflh 
expires:202606300400;;124802

open lake forecast for lake huron
national weather service detroit/pontiac mi
344 pm edt mon jun 29 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 warm front will gradually lift across the central
great lakes tonight into tuesday. a hot and humid air mass takes
residence through the week with prevailing south to southwest
winds as strong high pressure builds over the se us. this keeps
the favored storm track directed across the northern great lakes.


lhz361-362-300400-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
lake huron from presque isle light to sturgeon point mi beyond
5nm off shore-
344 pm edt mon jun 29 2026

.tonight...southeast winds 10 to 15 knots veering to the south
early in the morning. scattered showers in the evening. waves
2 to 4 feet. 
.tuesday...south winds 10 to 15 knots. areas of fog. waves 2 to
4 feet. 
.tuesday night...south winds 5 to 10 knots backing to the east by
midnight...then veering to the southeast after midnight. areas of
fog. waves 2 to 4 feet subsiding to 1 to 3 feet in the late
evening and overnight. 
.wednesday...southwest winds 5 to 10 knots backing to the south
early in the afternoon. waves 1 to 3 feet building to 2 to 4 feet
early in the afternoon. 
.wednesday night...south winds 5 to 10 knots. a chance of
showers. waves 2 to 4 feet. 
.thursday...southwest winds 10 to 15 knots in the morning
decreasing to 5 to 10 knots...then veering to the southwest 5 to
10 knots late in the afternoon becoming light and variable. a
chance of showers. waves 2 to 4 feet. 
.friday...light and variable winds. a chance of showers. a chance
of thunderstorms until early evening. waves 2 feet or less. 
.saturday...west winds 5 to 10 knots. a chance of showers early
in the morning. waves 2 feet or less. 


$$

fzus63 kdtx 291944
glflh 
expires:202606300400;;124803

open lake forecast for lake huron
national weather service detroit/pontiac mi
344 pm edt mon jun 29 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 warm front will gradually lift across the central
great lakes tonight into tuesday. a hot and humid air mass takes
residence through the week with prevailing south to southwest
winds as strong high pressure builds over the se us. this keeps
the favored storm track directed across the northern great lakes.


lhz363-462>464-300400-
lake huron from sturgeon point to alabaster mi beyond 5nm off
shore-
lake huron from port austin to harbor beach beyond 5nm off shore-
lake huron from harbor beach to port sanilac beyond 5nm off shore-
lake huron from port sanilac to port huron beyond 5nm off shore-
344 pm edt mon jun 29 2026

.tonight...southeast winds 10 to 15 knots veering to the south
early in the morning. scattered showers in the evening. waves
1 to 3 feet. 
.tuesday...south winds 10 to 15 knots. waves 2 to 4 feet. 
.tuesday night...southwest winds 10 to 15 knots decreasing to
5 to 10 knots by midnight...then increasing to 10 to 15 knots
after midnight. waves 2 to 4 feet subsiding to 1 to 3 feet in the
late evening and overnight. 
.wednesday...southwest winds 10 to 15 knots. waves 1 to 3 feet
building to 2 to 4 feet early in the afternoon. 
.wednesday night...southwest winds 10 to 15 knots. waves 3 to
5 feet subsiding to 2 to 4 feet after midnight. 
.thursday...southwest winds 10 to 15 knots. a chance of showers.
waves 1 to 3 feet building to 2 to 4 feet. 
.friday...southwest winds 5 to 10 knots. a chance of showers
early in the morning. a chance of thunderstorms until early
evening. a chance of showers. waves 2 feet or less. 
.saturday...west winds 5 to 10 knots becoming light and variable.
a chance of showers. waves 2 feet or less. 


$$

fzus63 kmkx 292016
glflm 
expires:202606300330;;126648

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
316 pm cdt mon jun 29 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...

warm humid airmass over the northwest quadrant of the open waters
has allowed dense fog to develop this afternoon and continue 
through tonight with additional development possible. winds become
more south-southwesterly tonight as low pressure around 29.2 
inches lifts into the canadian prairies, remaining breezy through 
wednesday. winds become modest and southwesterly thursday into 
friday. areas of dense fog may develop at times this week due to a
very humid airmass flowing over the cooler waters of the lake. 
scattered thunderstorms are forecast on most days, especially over
the north half.


lmz080-671-673-675-777-779-872-874-876-878-300330-
lake michigan from michigan city in to st. joseph mi 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 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-
316 pm cdt mon jun 29 2026

port washington wi to whitehall mi south...

.tonight...south winds to 30 kt diminishing to 15 to 25 kt. waves
4 to 6 ft occasionally to 8 ft. 
.tuesday...south winds 10 to 20 kt increasing to 15 to 25 kt.
waves 4 to 6 ft occasionally to 8 ft. 
.tuesday night...southwest winds 15 to 25 kt diminishing to 10 to
20 kt. waves 3 to 5 ft. 
.wednesday...southwest winds 10 to 20 kt becoming south. waves
3 to 5 ft. 
.wednesday night...southwest winds 10 to 20 kt. waves 3 to 5 ft. 
.thursday...southwest winds 10 to 20 kt. waves 3 to 5 ft. 
.thursday night...southwest winds 10 to 20 kt diminishing to
10 to 15 kt. chance of showers and thunderstorms. waves 2 to
4 ft. 
.friday...southwest winds 10 to 15 kt becoming south. chance of
showers. waves 1 to 2 ft. 
.saturday...southwest winds 10 to 15 kt becoming south 10 to
20 kt. chance of showers. waves 1 to 2 ft.  

$$

fzus63 kmkx 292016
glflm 
expires:202606300330;;126646

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
316 pm cdt mon jun 29 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...

warm humid airmass over the northwest quadrant of the open waters
has allowed dense fog to develop this afternoon and continue 
through tonight with additional development possible. winds become
more south-southwesterly tonight as low pressure around 29.2 
inches lifts into the canadian prairies, remaining breezy through 
wednesday. winds become modest and southwesterly thursday into 
friday. areas of dense fog may develop at times this week due to a
very humid airmass flowing over the cooler waters of the lake. 
scattered thunderstorms are forecast on most days, especially over
the north half.


lmz261-362-364-366-868-870-300330-
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 pentwater to manistee mi 5 nm offshore to mid
lake-
lake michigan from whitehall to pentwater mi 5 nm offshore to mid
lake-
316 pm cdt mon jun 29 2026

rock island passage to charlevoix mi north...

.tonight...south winds to 30 kt. waves 4 to 7 ft occasionally to
9 ft. 
.tuesday...south winds 15 to 25 kt increasing to 30 kt. patchy
fog in the morning. waves 4 to 7 ft occasionally to 9 ft. 
.tuesday night...south winds to 30 kt becoming southwest 10 to
20 kt. chance of showers in the evening, then chance of showers
and thunderstorms overnight. waves 4 to 7 ft occasionally to 9 ft
subsiding to 4 to 6 ft occasionally to 8 ft. 
.wednesday...southwest winds 10 to 20 kt becoming south to 30 kt
in the afternoon. waves 3 to 5 ft. 
.wednesday night...southwest winds to 30 kt diminishing to 15 to
25 kt. showers likely with a chance of thunderstorms. waves 4 to
6 ft occasionally to 8 ft. 
.thursday...southwest winds to 30 kt. waves 3 to 5 ft. 
.thursday night...southwest winds 15 to 25 kt diminishing to
10 to 15 kt. chance of showers and thunderstorms. waves 2 to
4 ft. 
.friday...southwest winds 10 to 15 kt increasing to 10 to 20 kt.
chance of showers. waves 1 to 3 ft. 
.saturday...northwest winds 10 to 15 kt becoming west 10 to
20 kt. waves 1 to 2 ft.  

$$

fzus63 kmkx 292016
glflm 
expires:202606300330;;126647

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
316 pm cdt mon jun 29 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...

warm humid airmass over the northwest quadrant of the open waters
has allowed dense fog to develop this afternoon and continue 
through tonight with additional development possible. winds become
more south-southwesterly tonight as low pressure around 29.2 
inches lifts into the canadian prairies, remaining breezy through 
wednesday. winds become modest and southwesterly thursday into 
friday. areas of dense fog may develop at times this week due to a
very humid airmass flowing over the cooler waters of the lake. 
scattered thunderstorms are forecast on most days, especially over
the north half.


lmz563-565-567-669-300330-
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 sheboygan to port washington wi 5 nm offshore
to mid lake-
316 pm cdt mon jun 29 2026

rock island passage to charlevoix mi south to port washington wi
to whitehall mi...

...dense fog advisory in effect until 7 am cdt tuesday for
northwest quadrant of the open waters...

.tonight...south winds to 30 kt diminishing to 15 to 25 kt. waves
5 to 8 ft occasionally to 10 ft. 
.tuesday...south winds 15 to 25 kt. waves 4 to 7 ft occasionally
to 9 ft. 
.tuesday night...south winds 15 to 25 kt becoming southwest 10 to
20 kt. chance of showers and thunderstorms overnight. waves 4 to
7 ft occasionally to 9 ft subsiding to 4 to 6 ft occasionally to
8 ft. 
.wednesday...southwest winds 10 to 20 kt becoming south 15 to
25 kt. chance of showers in the afternoon. waves 3 to 5 ft. 
.wednesday night...south winds 15 to 25 kt becoming southwest
10 to 20 kt. showers likely with a chance of thunderstorms. waves
4 to 6 ft occasionally to 8 ft. 
.thursday...southwest winds 10 to 20 kt becoming south 15 to
25 kt. waves 3 to 5 ft. 
.thursday night...southwest winds 10 to 20 kt diminishing to
10 to 15 kt. chance of showers and thunderstorms. waves 2 to
4 ft. 
.friday...southwest winds 10 to 15 kt becoming south. chance of
showers and thunderstorms. waves 1 to 3 ft. 
.saturday...northwest winds 5 to 10 kt veering to southeast 10 to
15 kt. chance of showers. waves 1 to 2 ft.  

$$

fzus63 kmqt 292001
glfls 
expires:202606300800;;125288

open lake forecast for lake superior
national weather service marquette mi
401 pm edt mon jun 29 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 29.4 inch low pressure over the dakotas will track north tonight 
and then deepen to 29.3 inches as it retrogrades into eastern 
saskatchewan on tuesday. this will keep troughing of 29.7 inches over 
lake superior through tuesday evening. tuesday night into wednesday 
a 29.8 inch ridge will build over the upper great lakes while a 
broad trough of 29.6 inches remains over the plains. this pattern 
will hold through friday. on friday night into saturday a 30.2 inch 
high pressure will move south from the hudson bay, extending a 30.0 
inch ridge of lake superior. 




lsz162-300800-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
401 pm edt mon jun 29 2026 /301 pm cdt mon jun 29 2026/

.late this afternoon...northeast winds 15 to 25 knots. patchy
fog. a chance of showers and thunderstorms. waves 2 to 4 feet. 
.tonight...northeast winds 15 to 25 knots becoming east 10 to
20 knots after midnight. patchy fog. a chance of showers and
thunderstorms. waves subsiding to 1 to 3 feet. 
.tuesday...west winds 5 to 15 knots backing southwest in the
afternoon, then becoming south 10 to 20 knots late. areas of
dense fog through early afternoon. waves subsiding to calm to
2 feet. 
.tuesday night...southwest winds 10 to 20 knots. waves calm to
2 feet. 
.wednesday...southwest winds 10 to 20 knots. a chance of showers
and thunderstorms by mid afternoon. waves calm to 2 feet. 
.wednesday night...southwest winds 5 to 15 knots. a chance of
showers. waves calm to 2 feet. 
.thursday...southwest winds 5 to 15 knots. waves calm to 2 feet. 
.thursday night...southwest winds 5 to 15 knots backing northeast
after midnight. a chance of showers. waves calm to 2 feet. 
.friday...northeast winds 5 to 15 knots. a chance of showers.
waves calm to 2 feet. 
.saturday...northeast winds 5 to 15 knots. a chance of showers.
waves calm to 2 feet. 

$$

fzus63 kmqt 292001
glfls 
expires:202606300800;;125289

open lake forecast for lake superior
national weather service marquette mi
401 pm edt mon jun 29 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 29.4 inch low pressure over the dakotas will track north tonight 
and then deepen to 29.3 inches as it retrogrades into eastern 
saskatchewan on tuesday. this will keep troughing of 29.7 inches over 
lake superior through tuesday evening. tuesday night into wednesday 
a 29.8 inch ridge will build over the upper great lakes while a 
broad trough of 29.6 inches remains over the plains. this pattern 
will hold through friday. on friday night into saturday a 30.2 inch 
high pressure will move south from the hudson bay, extending a 30.0 
inch ridge of lake superior. 




lsz263-300800-
lake superior from saxon harbor wi to upper entrance to portage
canal mi 5nm off shore to the us/canadian border including isle
royale national park-
401 pm edt mon jun 29 2026

...dense fog advisory in effect until 8 am edt tuesday...

.late this afternoon...northeast winds 10 to 20 knots. patchy
fog. a slight chance of showers and thunderstorms. waves 2 to
4 feet. 
.tonight...east winds 15 to 25 knots veering southeast after
midnight, then becoming south 10 to 20 knots late. patchy fog. a
chance of showers and thunderstorms. waves 2 to 4 feet. 
.tuesday...southwest winds 10 to 20 knots backing south late.
areas of dense fog. a slight chance of showers and thunderstorms
by mid afternoon. waves subsiding to 1 to 3 feet. 
.tuesday night...southwest winds 10 to 20 knots diminishing to
5 to 15 knots after midnight. a slight chance of showers and
thunderstorms through midnight. some thunderstorms may be severe.
waves subsiding to calm to 2 feet. 
.wednesday...southwest winds 10 to 20 knots. a chance of showers
and thunderstorms by mid afternoon. waves building to 2 to
4 feet, then subsiding to 1 to 3 feet. 
.wednesday night...southwest winds 10 to 20 knots diminishing to
5 to 15 knots after midnight. showers likely through midnight. a
chance of thunderstorms. waves subsiding to calm to 2 feet. 
.thursday...southwest winds 5 to 15 knots increasing to 10 to
20 knots by mid afternoon. waves building to 1 to 3 feet, then
subsiding to calm to 2 feet. 
.thursday night...southwest winds 5 to 15 knots. waves calm to
2 feet. 
.friday...northeast winds 5 to 15 knots backing west. a chance of
showers. waves calm to 2 feet. 
.saturday...northeast winds 5 to 15 knots veering east. a chance
of showers. waves calm to 2 feet. 

$$

fzus63 kmqt 292001
glfls 
expires:202606300800;;125290

open lake forecast for lake superior
national weather service marquette mi
401 pm edt mon jun 29 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 29.4 inch low pressure over the dakotas will track north tonight 
and then deepen to 29.3 inches as it retrogrades into eastern 
saskatchewan on tuesday. this will keep troughing of 29.7 inches over 
lake superior through tuesday evening. tuesday night into wednesday 
a 29.8 inch ridge will build over the upper great lakes while a 
broad trough of 29.6 inches remains over the plains. this pattern 
will hold through friday. on friday night into saturday a 30.2 inch 
high pressure will move south from the hudson bay, extending a 30.0 
inch ridge of lake superior. 




lsz264-300800-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
401 pm edt mon jun 29 2026

...dense fog advisory in effect until 8 am edt tuesday...

.late this afternoon...southeast winds 15 to 25 knots. areas of
dense fog. a slight chance of showers and thunderstorms. waves
3 to 5 feet occasionally to 7 feet. 
.tonight...southeast winds 10 to 20 knots. areas of dense fog
through midnight. patchy fog after midnight. a chance of showers
and thunderstorms. waves 3 to 5 feet occasionally to 7 feet. 
.tuesday...south winds 10 to 20 knots becoming southwest 5 to
15 knots in the afternoon, then becoming southeast 10 to 20 knots
late. areas of dense fog. a chance of showers and thunderstorms
by mid afternoon. waves subsiding to 1 to 3 feet. 
.tuesday night...south winds 10 to 20 knots becoming southwest
5 to 15 knots after midnight. a slight chance of showers and
thunderstorms through midnight. waves subsiding to calm to
2 feet, then building to 1 to 3 feet. 
.wednesday...southwest winds 10 to 20 knots backing south by mid
afternoon. a chance of showers and a slight chance of
thunderstorms by mid afternoon. waves 1 to 3 feet. 
.wednesday night...southwest winds 10 to 20 knots diminishing to
5 to 15 knots after midnight. a chance of showers and
thunderstorms. waves subsiding to calm to 2 feet. 
.thursday...southwest winds 5 to 15 knots. waves calm to 2 feet. 
.thursday night...southwest winds 5 to 15 knots diminishing to
less than 10 knots after midnight. waves calm to 2 feet. 
.friday...east winds less than 10 knots veering west. a chance of
showers. waves calm to 2 feet. 
.saturday...northeast winds 5 to 15 knots veering east. a chance
of showers. waves calm to 2 feet. 

$$

fzus63 kmqt 292001
glfls 
expires:202606300800;;125291

open lake forecast for lake superior
national weather service marquette mi
401 pm edt mon jun 29 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 29.4 inch low pressure over the dakotas will track north tonight 
and then deepen to 29.3 inches as it retrogrades into eastern 
saskatchewan on tuesday. this will keep troughing of 29.7 inches over 
lake superior through tuesday evening. tuesday night into wednesday 
a 29.8 inch ridge will build over the upper great lakes while a 
broad trough of 29.6 inches remains over the plains. this pattern 
will hold through friday. on friday night into saturday a 30.2 inch 
high pressure will move south from the hudson bay, extending a 30.0 
inch ridge of lake superior. 




lsz265-300800-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
401 pm edt mon jun 29 2026

.late this afternoon...southeast winds 20 to 30 knots. waves 3 to
5 feet occasionally to 7 feet. 
.tonight...southeast winds 20 to 30 knots diminishing to 15 to
25 knots after midnight. patchy fog. a chance of showers and
thunderstorms after midnight. waves subsiding to 2 to 4 feet. 
.tuesday...south winds 15 to 25 knots diminishing to 10 to
20 knots in the afternoon, then backing east late. patchy fog
through early afternoon. a chance of showers and thunderstorms by
mid afternoon. some thunderstorms may be severe. waves subsiding
to calm to 2 feet. 
.tuesday night...south winds 10 to 20 knots veering southwest
after midnight. a chance of thunderstorms and a slight chance of
showers through midnight. some thunderstorms may be severe. waves
calm to 2 feet. 
.wednesday...southwest winds 10 to 20 knots backing southeast by
mid afternoon. a chance of showers and thunderstorms by mid
afternoon. waves calm to 2 feet. 
.wednesday night...southwest winds 10 to 20 knots. showers likely
and a chance of thunderstorms through midnight, then a chance of
showers after midnight. waves calm to 2 feet. 
.thursday...west winds 10 to 20 knots becoming southwest 5 to
15 knots by mid afternoon. waves calm to 2 feet. 
.thursday night...south winds 5 to 15 knots veering southwest
after midnight. waves calm to 2 feet. 
.friday...east winds 5 to 15 knots veering west. a chance of
showers. waves calm to 2 feet. 
.saturday...northeast winds 5 to 15 knots veering east. a chance
of showers. waves calm to 2 feet. 

$$

fzus63 kmqt 292001
glfls 
expires:202606300800;;125292

open lake forecast for lake superior
national weather service marquette mi
401 pm edt mon jun 29 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 29.4 inch low pressure over the dakotas will track north tonight 
and then deepen to 29.3 inches as it retrogrades into eastern 
saskatchewan on tuesday. this will keep troughing of 29.7 inches over 
lake superior through tuesday evening. tuesday night into wednesday 
a 29.8 inch ridge will build over the upper great lakes while a 
broad trough of 29.6 inches remains over the plains. this pattern 
will hold through friday. on friday night into saturday a 30.2 inch 
high pressure will move south from the hudson bay, extending a 30.0 
inch ridge of lake superior. 




lsz266-300800-
lake superior east of a line from manitou island to marquette mi
and west of a line from grand marais mi to the us/canadian border
beyond 5nm from shore-
401 pm edt mon jun 29 2026

.late this afternoon...southeast winds 20 to 30 knots. patchy
fog. a slight chance of showers and thunderstorms. waves 3 to
5 feet occasionally to 7 feet. 
.tonight...southeast winds 20 to 30 knots becoming south 15 to
25 knots after midnight. patchy fog. a chance of showers and a
slight chance of thunderstorms after midnight. waves 3 to 5 feet
occasionally to 7 feet. 
.tuesday...south winds 15 to 25 knots diminishing to 10 to
20 knots in the afternoon, then backing southeast late. patchy
dense fog through early afternoon. a chance of showers and
thunderstorms by mid afternoon. some thunderstorms may be severe.
waves subsiding to calm to 2 feet. 
.tuesday night...south winds 10 to 20 knots becoming southwest
15 to 25 knots after midnight, then diminishing to 10 to 20 knots
late. a chance of showers and thunderstorms through midnight.
some thunderstorms may be severe. waves building to 1 to 3 feet,
then subsiding to calm to 2 feet. 
.wednesday...southwest winds 10 to 20 knots backing southeast by
mid afternoon. a chance of showers and a slight chance of
thunderstorms by mid afternoon. waves calm to 2 feet. 
.wednesday night...south winds 10 to 20 knots veering southwest
after midnight. showers likely through midnight. a chance of
thunderstorms. a chance of showers after midnight. waves calm to
2 feet. 
.thursday...southwest winds 5 to 15 knots. waves calm to 2 feet. 
.thursday night...south winds 5 to 15 knots. waves calm to
2 feet. 
.friday...east winds 5 to 15 knots backing northwest. a chance of
showers. waves calm to 2 feet. 
.saturday...north winds 5 to 15 knots veering east. a chance of
showers. waves calm to 2 feet. 

$$

fzus63 kmqt 292001
glfls 
expires:202606300800;;125293

open lake forecast for lake superior
national weather service marquette mi
401 pm edt mon jun 29 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 29.4 inch low pressure over the dakotas will track north tonight 
and then deepen to 29.3 inches as it retrogrades into eastern 
saskatchewan on tuesday. this will keep troughing of 29.7 inches over 
lake superior through tuesday evening. tuesday night into wednesday 
a 29.8 inch ridge will build over the upper great lakes while a 
broad trough of 29.6 inches remains over the plains. this pattern 
will hold through friday. on friday night into saturday a 30.2 inch 
high pressure will move south from the hudson bay, extending a 30.0 
inch ridge of lake superior. 




lsz267-300800-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
401 pm edt mon jun 29 2026

.late this afternoon...southeast winds 15 to 25 knots. a slight
chance of showers and thunderstorms. waves 3 to 5 feet
occasionally to 7 feet subsiding to 2 to 4 feet. 
.tonight...southeast winds 15 to 25 knots veering south late. a
slight chance of showers and thunderstorms. patchy fog after
midnight. waves 2 to 4 feet. 
.tuesday...south winds 15 to 25 knots diminishing to 5 to
15 knots in the afternoon, then increasing to 10 to 20 knots
late. patchy fog through early afternoon. a chance of showers. a
chance of thunderstorms by mid afternoon. some thunderstorms may
be severe. waves subsiding to calm to 2 feet. 
.tuesday night...south winds 10 to 20 knots becoming southwest
5 to 15 knots late. a chance of thunderstorms through midnight. a
chance of showers. a slight chance of thunderstorms after
midnight. some thunderstorms may be severe through midnight.
waves building to 1 to 3 feet, then subsiding to calm to 2 feet. 
.wednesday...southwest winds 5 to 15 knots backing southeast by
mid afternoon. a chance of showers and a slight chance of
thunderstorms by mid afternoon. waves calm to 2 feet. 
.wednesday night...south winds 10 to 20 knots veering southwest
after midnight. showers likely and a chance of thunderstorms.
waves calm to 2 feet. 
.thursday...west winds 5 to 15 knots backing south by mid
afternoon. waves calm to 2 feet. 
.thursday night...southeast winds 5 to 15 knots. waves calm to
2 feet. 
.friday...northeast winds 5 to 15 knots backing west. a chance of
showers and thunderstorms. waves calm to 2 feet. 
.saturday...northwest winds 5 to 15 knots veering northeast.
waves calm to 2 feet. 

$$