fzus61 kbuf 280203
glflo 
expires:202607280900;;725550

open lake forecast for lake ontario
national weather service buffalo ny
1003 pm edt mon jul 27 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 29.5 inch low over the western central great lakes 
this evening will strengthen to 29.3 inches while moving southeast 
into the lower great lakes tonight and tuesday. a cold front 
associated with this low will swing across the lake late tuesday and 
tuesday night. the low will then weaken to 29.6 inches while 
drifting east into new england by wednesday, before entering the 
northern atlantic thursday and friday. meanwhile a 30.0 inch high 
will slide across the great lakes thursday and friday.


loz063>065-280900-
lake ontario open waters from hamlin beach to the saint lawrence
river-
1003 pm edt mon jul 27 2026

.rest of tonight...southeast winds 5 to 15 knots becoming south.
a chance of showers and thunderstorms, then showers with a chance
of thunderstorms late. waves 2 feet or less. 
.tuesday...south winds 15 to 20 knots becoming northeast. showers
with a chance of thunderstorms. waves 1 to 3 feet building to
2 to 4 feet, then subsiding to 1 to 3 feet. 
.tuesday night...north winds 15 to 25 knots. showers with a
chance of thunderstorms. waves 2 to 4 feet building to 3 to
6 feet. 
.wednesday...north winds 15 to 25 knots. showers in the morning,
then showers with a chance of thunderstorms in the afternoon.
waves 3 to 6 feet. 
.wednesday night...north winds 15 to 20 knots. showers with a
chance of thunderstorms in the evening, then showers overnight.
waves 3 to 5 feet subsiding to 2 to 4 feet. 
.thursday...north winds 15 to 20 knots diminishing to 5 to
15 knots. a chance of showers during the day. waves 2 to 4 feet
subsiding to 1 foot or less. 
.friday...north winds 10 knots or less becoming southwest. waves
1 foot or less. 
.saturday...south winds less than 10 knots. waves 1 foot or less.

winds and waves higher in and near thunderstorms.

$$

fzus61 kbuf 280203
glflo 
expires:202607280900;;725549

open lake forecast for lake ontario
national weather service buffalo ny
1003 pm edt mon jul 27 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 29.5 inch low over the western central great lakes 
this evening will strengthen to 29.3 inches while moving southeast 
into the lower great lakes tonight and tuesday. a cold front 
associated with this low will swing across the lake late tuesday and 
tuesday night. the low will then weaken to 29.6 inches while 
drifting east into new england by wednesday, before entering the 
northern atlantic thursday and friday. meanwhile a 30.0 inch high 
will slide across the great lakes thursday and friday.


loz062-280900-
lake ontario open waters from the niagara river to hamlin beach-
1003 pm edt mon jul 27 2026

.rest of tonight...south winds 5 to 15 knots. a chance of showers
and thunderstorms late this evening, then showers with a chance
of thunderstorms after midnight. waves 1 to 2 feet. 
.tuesday...southeast winds 10 to 15 knots becoming north 15 to
20 knots. showers with a chance of thunderstorms through early
afternoon, then a chance of showers and thunderstorms late. waves
1 to 3 feet building to 2 to 4 feet. 
.tuesday night...north winds 15 to 25 knots. showers likely with
a chance of thunderstorms in the evening, then showers likely
overnight. waves 2 to 4 feet building to 3 to 6 feet. 
.wednesday...north winds 15 to 25 knots. showers in the morning,
then showers with a chance of thunderstorms in the afternoon.
waves 3 to 6 feet. 
.wednesday night...north winds 15 to 20 knots. showers with a
chance of thunderstorms in the evening, then showers likely
overnight. waves 2 to 4 feet. 
.thursday...north winds 5 to 15 knots becoming northwest. a
chance of showers during the day. waves 1 to 3 feet subsiding to
1 foot or less. 
.friday...northwest winds less than 10 knots becoming southwest.
waves 1 foot or less. 
.saturday...south winds less than 10 knots. a chance of showers
saturday night. waves 1 foot or less. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 280136
glfle 
expires:202607280815;;724868

open lake forecast for lake erie
national weather service cleveland oh
936 pm edt mon jul 27 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...
low pressure of 29.60 inches will move east across lake erie 
tonight, pulling a cold front south behind it on tuesday. a 
trough averaging 29.80 inches will linger over the lake into 
thursday before a ridge averaging 30.00 inches builds east across 
the region thursday and friday. the high will drift east on 
saturday as low pressure 29.90 inches moves east across the 
tennessee and ohio valleys.


lez162-163-280815-
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-
936 pm edt mon jul 27 2026

.rest of tonight...southwest winds 15 to 20 knots. showers likely
with a chance of thunderstorms late this evening, then a chance
of showers and thunderstorms after midnight. a chance of showers
with a slight chance of thunderstorms late. waves 1 to 3 feet. 
.tuesday...northwest winds 15 to 20 knots becoming north. a
slight chance of showers early. waves 2 to 4 feet. 
.tuesday night...north winds 15 to 20 knots. waves 2 to 4 feet. 
.wednesday...north winds 15 to 20 knots. waves 2 to 4 feet. 
.wednesday night...north winds 15 to 20 knots diminishing to
10 to 15 knots. waves 1 to 3 feet. 
.thursday...north winds 5 to 15 knots becoming east less than
10 knots. waves 2 feet or less. 
.friday...south winds 10 knots or less. waves 1 foot or less. 
.saturday...south winds 10 knots or less becoming east. a chance
of showers and thunderstorms during the day, then a chance of
showers saturday night. waves 1 foot or less. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 280136
glfle 
expires:202607280815;;724869

open lake forecast for lake erie
national weather service cleveland oh
936 pm edt mon jul 27 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...
low pressure of 29.60 inches will move east across lake erie 
tonight, pulling a cold front south behind it on tuesday. a 
trough averaging 29.80 inches will linger over the lake into 
thursday before a ridge averaging 30.00 inches builds east across 
the region thursday and friday. the high will drift east on 
saturday as low pressure 29.90 inches moves east across the 
tennessee and ohio valleys.


lez164>168-280815-
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-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-
936 pm edt mon jul 27 2026

.rest of tonight...southwest winds 15 to 20 knots. showers likely
with a chance of thunderstorms, then a chance of showers and
thunderstorms late. waves 1 to 3 feet building to 3 to 5 feet. 
.tuesday...northwest winds 15 to 25 knots. a chance of showers
with a slight chance of thunderstorms early. a slight chance of
showers and thunderstorms late. waves 3 to 6 feet building to
4 to 7 feet. waves occasionally around 9 feet. 
.tuesday night...northwest winds 20 to 25 knots becoming north.
waves 4 to 7 feet. waves occasionally around 9 feet. 
.wednesday...north winds 15 to 25 knots becoming northwest. waves
4 to 7 feet subsiding to 3 to 6 feet. waves occasionally around
9 feet. 
.wednesday night...north winds 15 to 25 knots. waves 3 to 6 feet
subsiding to 2 to 4 feet. 
.thursday...north winds 5 to 15 knots. waves 1 to 3 feet. 
.friday...northwest winds less than 10 knots becoming south.
waves 1 foot or less. 
.saturday...south winds 10 knots or less becoming southeast. a
chance of showers saturday night. waves 1 foot or less. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 280136
glfle 
expires:202607280815;;724870

open lake forecast for lake erie
national weather service cleveland oh
936 pm edt mon jul 27 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...
low pressure of 29.60 inches will move east across lake erie 
tonight, pulling a cold front south behind it on tuesday. a 
trough averaging 29.80 inches will linger over the lake into 
thursday before a ridge averaging 30.00 inches builds east across 
the region thursday and friday. the high will drift east on 
saturday as low pressure 29.90 inches moves east across the 
tennessee and ohio valleys.


lez061-169-280815-
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-
936 pm edt mon jul 27 2026

.rest of tonight...south winds 10 to 15 knots becoming southwest
15 to 20 knots. showers and thunderstorms likely late this
evening, then showers with a chance of thunderstorms after
midnight. waves 1 to 3 feet. 
.tuesday...southwest winds 10 to 15 knots becoming northwest
15 to 20 knots. showers likely with a chance of thunderstorms
early, then a chance of showers with a slight chance of
thunderstorms from late morning on. waves 2 to 4 feet building to
3 to 5 feet. 
.tuesday night...northwest winds 15 to 25 knots becoming north.
showers likely with a chance of thunderstorms in the evening,
then a chance of showers overnight. waves 3 to 5 feet. 
.wednesday...north winds 15 to 25 knots becoming northwest. a
chance of showers. waves 3 to 5 feet subsiding to 2 to 4 feet. 
.wednesday night...north winds 15 to 20 knots diminishing to
10 to 15 knots. a chance of showers in the evening. waves 2 to
4 feet subsiding to 1 to 3 feet. 
.thursday...north winds 5 to 15 knots. waves 2 feet or less. 
.friday...northwest winds less than 10 knots becoming south.
waves 1 foot or less. 
.saturday...south winds less than 10 knots becoming southeast. a
chance of showers saturday night. waves 1 foot or less. 

winds and waves higher in and near thunderstorms.

$$

fzus63 kdtx 280150
glfsc 
expires:202607281000;;725135

lake st clair forecast
national weather service detroit/pontiac mi
950 pm edt mon jul 27 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 low pressure system pulls a cold front across the
region through tuesday morning. the low then stalls near the
eastern great lakes while high pressure builds into the western
great lakes tuesday into thursday. this maintains a period of
moderate northerly flow through midweek.


lcz460-281000-
lake st clair-
950 pm edt mon jul 27 2026

.rest of tonight...southwest winds 10 to 15 knots veering to the
west early in the morning. mostly cloudy with a chance of showers
and thunderstorms. waves 2 feet or less.
.tuesday...north winds 15 to 20 knots. partly sunny. waves 1 to 3
feet.
.tuesday night...north winds 20 to 25 knots diminishing to 15 to 20
knots after midnight. mostly clear. waves 2 to 4 feet.
.wednesday...north winds 20 to 25 knots diminishing to 15 to 20
knots early in the afternoon. gusts to 30 knots. sunny. waves 2 to 4
feet. a small craft advisory may be needed.
.wednesday night...north winds 20 to 25 knots with gusts to 30 knots
diminishing to 10 to 15 knots. clear. waves 1 to 3 feet.
.thursday...north winds 10 to 15 knots becoming northeast 5 to 10
knots in the evening. clear. waves 2 feet or less.
.friday...southeast winds 5 to 10 knots. partly cloudy. waves 2 feet
or less.
.saturday...east winds 5 to 10 knots. mostly cloudy. a chance of
showers and thunderstorms. waves 2 feet or less.

$$

fzus63 kdtx 280148
glflh 
expires:202607281000;;725096

open lake forecast for lake huron
national weather service detroit/pontiac mi
948 pm edt mon jul 27 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 low pressure system pulls a cold front across the
region through tuesday morning. the low then stalls near the
eastern great lakes while high pressure builds into the western
great lakes tuesday into thursday. this maintains a period of
moderate northerly flow through midweek.


lhz462>464-281000-
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-
948 pm edt mon jul 27 2026

.rest of tonight...south winds 5 to 10 knots becoming north 10 to
15 knots early in the morning. showers and thunderstorms likely. 
waves 1 to 3 feet. 
.tuesday...north winds 15 to 20 knots increasing to 20 to
25 knots with gusts to around 30 knots in the late morning and
afternoon. waves 4 to 6 feet building to 6 to 9 feet late in the
afternoon. waves occasionally around 12 feet. 
.tuesday night...north winds 20 to 25 knots decreasing to 15 to
20 knots in the late evening and overnight. gusts to 30 knots.
waves 6 to 9 feet. waves occasionally around 12 feet. 
.wednesday...north winds 20 to 25 knots with gusts to around
30 knots. waves 6 to 9 feet. waves occasionally around 12 feet. 
.wednesday night...north winds 15 to 20 knots with gusts to
around 30 knots decreasing to 10 to 15 knots in the late evening
and overnight. waves 4 to 6 feet. waves occasionally around
8 feet. 
.thursday...north winds 5 to 10 knots in the morning increasing
to 10 to 15 knots...then decreasing to 5 to 10 knots late in the
afternoon becoming light and variable. waves 1 to 3 feet. 
.friday...light and variable winds. waves 2 feet or less. 
.saturday...light and variable winds becoming east 5 to 10 knots
early in the evening...then becoming light and variable by
midnight. a chance of showers . waves 2 feet or less. 


$$

fzus63 kdtx 280148
glflh 
expires:202607281000;;725095

open lake forecast for lake huron
national weather service detroit/pontiac mi
948 pm edt mon jul 27 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 low pressure system pulls a cold front across the
region through tuesday morning. the low then stalls near the
eastern great lakes while high pressure builds into the western
great lakes tuesday into thursday. this maintains a period of
moderate northerly flow through midweek.


lhz362-363-281000-
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-
948 pm edt mon jul 27 2026

.rest of tonight...north winds 5 to 10 knots backing to the west
after midnight...then becoming west 5 to 10 knots early in the
morning. thunderstorms this evening...then a chance of showers 
and thunderstorms after midnight. waves 1 to 3 feet. 
.tuesday...north winds 10 to 15 knots increasing to 15 to
20 knots with gusts to around 30 knots in the late morning and
afternoon. waves 4 to 6 feet. 
.tuesday night...north winds 15 to 20 knots. waves 4 to 6 feet. 
.wednesday...north winds 15 to 20 knots becoming northwest 10 to
15 knots early in the afternoon. waves 4 to 6 feet. 
.wednesday night...north winds 10 to 15 knots decreasing to 5 to
10 knots after midnight. waves 2 to 4 feet subsiding to 1 to
3 feet after midnight. waves occasionally around 8 feet. 
.thursday...north winds 5 to 10 knots becoming light and
variable. waves 2 feet or less. 
.friday...light and variable winds. waves 2 feet or less. 
.saturday...light and variable winds. a chance of showers . waves
2 feet or less. 


$$

fzus63 kdtx 280148
glflh 
expires:202607281000;;725094

open lake forecast for lake huron
national weather service detroit/pontiac mi
948 pm edt mon jul 27 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 low pressure system pulls a cold front across the
region through tuesday morning. the low then stalls near the
eastern great lakes while high pressure builds into the western
great lakes tuesday into thursday. this maintains a period of
moderate northerly flow through midweek.


lhz361-281000-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
948 pm edt mon jul 27 2026

.rest of tonight...west winds 5 to 10 knots veering to the
northwest after midnight...then becoming northwest 5 to 10 knots
early in the morning. a chance of showers and thunderstorms this
evening...then a chance of showers after midnight. waves 2 feet
or less. 
.tuesday...north winds 10 to 15 knots. waves 1 to 3 feet. 
.tuesday night...northwest winds 10 to 15 knots. waves 2 to
4 feet subsiding to 1 to 3 feet after midnight. 
.wednesday...north winds 10 to 15 knots becoming northwest 5 to
10 knots in the late morning and afternoon. waves 1 to 3 feet. 
.wednesday night...west winds 10 to 15 knots becoming north 5 to
10 knots in the late evening and overnight. waves 2 feet or less.
.thursday...light and variable winds. waves 2 feet or less. 
.friday...light and variable winds. waves 2 feet or less. 
.saturday...light and variable winds. a chance of showers. waves
2 feet or less. 


$$

fzus63 kmkx 280203
glflm 
expires:202607280930;;725557

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
903 pm cdt mon jul 27 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...

low pressure around 29.5 inches over central lake michigan will 
move to the lower great lakes by tuesday morning. the associated 
cold front will track southward across lake michigan tonight. t
northerly winds are expected to gust around 30 kt over central and
southern lake michigan late tonight through tuesday. much lighter
northerly winds are then expected late tuesday night into 
wednesday as high pressure around 30.0 inches builds into the 
northern great lakes. the high will maintain light winds for 
thursday and friday as well, but winds will take on a more
southerly direction.


lmz080-669-671-673-675-777-779-870-872-874-876-878-280930-
lake michigan from michigan city in to st. joseph mi 5 nm
offshore to mid lake-
lake michigan from sheboygan to port washington wi 5 nm offshore
to mid lake-
lake michigan from port washington to north point light wi 5 nm
offshore to mid lake-
lake michigan from north point light to wind point wi 5 nm
offshore to mid lake-
lake michigan from wind point wi to winthrop harbor il 5 nm
offshore to mid lake-
lake michigan from winthrop harbor to wilmette harbor il 5 nm
offshore to mid lake-
lake michigan from wilmette harbor il to michigan city in 5 nm
offshore to mid lake-
lake michigan from whitehall to pentwater mi 5 nm offshore to mid
lake-
lake michigan from grand haven to whitehall mi 5 nm offshore to
mid lake-
lake michigan from holland to grand haven mi 5 nm offshore to mid
lake-
lake michigan from south haven to holland mi 5 nm offshore to mid
lake-
lake michigan from st. joseph to south haven mi 5 nm offshore to
mid lake-
903 pm cdt mon jul 27 2026

sheboygan wi to pentwater mi south...

.rest of tonight...southwest winds 15 to 25 kt veering to north
to 30 kt overnight. slight chance of showers and thunderstorms 
through late evening. waves 4 to 6 ft occasionally to 8 ft 
building to 6 to 9 ft occasionally to 12 ft. 
.tuesday...north winds to 30 kt. waves 7 to 10 ft occasionally to
13 ft. 
.tuesday night...north winds to 30 kt diminishing to 10 to 15 kt.
waves 7 to 10 ft occasionally to 13 ft subsiding to 4 to 6 ft
occasionally to 8 ft. 
.wednesday...north winds 10 to 20 kt increasing to 15 to 25 kt.
waves 3 to 5 ft. 
.wednesday night...north winds 10 to 20 kt becoming northwest
5 to 10 kt overnight. waves 3 to 5 ft subsiding to 1 to 3 ft. 
.thursday...west winds 5 to 10 kt becoming south. waves 1 to
2 ft. 
.thursday night...south winds 10 to 15 kt becoming southwest 5 to
10 kt. waves 1 ft or less. 
.friday...southwest winds 10 to 15 kt becoming south. waves 1 ft
or less. 
.saturday...northeast winds 10 to 15 kt increasing to 10 to
20 kt. chance of showers. waves 1 to 2 ft.  

$$

fzus63 kmkx 280203
glflm 
expires:202607280930;;725556

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
903 pm cdt mon jul 27 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...

low pressure around 29.5 inches over central lake michigan will 
move to the lower great lakes by tuesday morning. the associated 
cold front will track southward across lake michigan tonight. t
northerly winds are expected to gust around 30 kt over central and
southern lake michigan late tonight through tuesday. much lighter
northerly winds are then expected late tuesday night into 
wednesday as high pressure around 30.0 inches builds into the 
northern great lakes. the high will maintain light winds for 
thursday and friday as well, but winds will take on a more
southerly direction.


lmz261-362-364-366-563-565-567-868-280930-
lake michigan from seul choix point to rock island passage 5 nm
offshore to mid lake-
lake michigan south of a line from seul choix point to the
mackinac bridge and north of a line from charlevoix mi to south
fox island 5 nm offshore-
lake michigan from charlevoix to point betsie mi 5 nm offshore to
mid lake-
lake michigan from point betsie to manistee mi 5 nm offshore to
mid lake-
lake michigan from rock island passage to sturgeon bay wi-
lake michigan from sturgeon bay to two rivers wi 5 nm offshore to
mid lake-
lake michigan from two rivers to sheboygan wi 5 nm offshore to
mid lake-
lake michigan from pentwater to manistee mi 5 nm offshore to mid
lake-
903 pm cdt mon jul 27 2026

sheboygan wi to pentwater mi north...

.rest of tonight...north winds 10 to 20 kt increase to 30 kt
overnight. slight chance of showers and thunderstorms through 
late evening. waves 4 to 7 ft occasionally to 9 ft. 
.tuesday...north winds to 30 kt. waves 4 to 7 ft occasionally to
9 ft. 
.tuesday night...north winds 15 to 25 kt diminishing to 10 to
15 kt. waves 3 to 5 ft subsiding to 1 to 3 ft. 
.wednesday...north winds 10 to 20 kt becoming northwest 15 to
25 kt. waves 1 to 3 ft. 
.wednesday night...south winds 10 to 20 kt diminishing to 5 to
10 kt overnight. waves 1 to 2 ft subsiding to nearly calm. 
.thursday...south winds 10 to 15 kt. waves 1 to 2 ft. 
.thursday night...south winds 10 to 15 kt diminishing to 5 to
10 kt. waves 1 ft or less. 
.friday...southwest winds 10 to 15 kt becoming south. chance of
showers. waves 1 ft or less. 
.saturday...northeast winds 10 to 15 kt becoming north 10 to
20 kt. chance of showers. waves 1 to 2 ft.  

$$

fzus63 kmqt 280201
glfls 
expires:202607280800;;725459

open lake forecast for lake superior
national weather service marquette mi
1001 pm edt mon jul 27 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 ridging builds to near 30.0 inches over lake superior tonight 
into tuesday and remains until thursday morning. the ridging then 
gives way to weak troughing of 29.9 inches before becoming weak 
ridging of 29.9 to 30.0 inches again the rest of this week.




lsz162-280800-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
1001 pm edt mon jul 27 2026 /901 pm cdt mon jul 27 2026/

...dense fog advisory in effect until 8 am edt /7 am cdt/
tuesday...

.rest of tonight...northwest winds 5 to 15 knots diminishing to
less than 10 knots after midnight. patchy dense fog. waves calm
to 2 feet. 
.tuesday...west winds less than 10 knots becoming south 5 to
15 knots in the afternoon, then backing east late. patchy fog.
waves calm to 2 feet. 
.tuesday night...east winds less than 10 knots backing northeast
after midnight. waves calm to 2 feet. 
.wednesday...north winds less than 10 knots becoming east 5 to
15 knots by mid afternoon. waves calm to 2 feet. 
.wednesday night...northeast winds 5 to 15 knots diminishing to
less than 10 knots after midnight. a slight chance of showers and
thunderstorms. waves calm to 2 feet. 
.thursday...east winds 5 to 15 knots backing northeast by mid
afternoon. waves calm to 2 feet. 
.thursday night...north winds 5 to 15 knots backing west after
midnight. a chance of showers and thunderstorms. waves calm to
2 feet. 
.friday...southwest winds 5 to 15 knots veering northwest. a
chance of showers. waves calm to 2 feet. 
.saturday...north winds 5 to 15 knots veering northeast. waves
calm to 2 feet. 

$$

fzus63 kmqt 280201
glfls 
expires:202607280800;;725460

open lake forecast for lake superior
national weather service marquette mi
1001 pm edt mon jul 27 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 ridging builds to near 30.0 inches over lake superior tonight 
into tuesday and remains until thursday morning. the ridging then 
gives way to weak troughing of 29.9 inches before becoming weak 
ridging of 29.9 to 30.0 inches again the rest of this week.




lsz263-280800-
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 pm edt mon jul 27 2026

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

.rest of tonight...northwest winds 5 to 15 knots becoming north
less than 10 knots late. areas of dense fog. waves calm to
2 feet. 
.tuesday...west winds less than 10 knots becoming south 5 to
15 knots in the afternoon, then veering southwest late. patchy
fog. waves calm to 2 feet. 
.tuesday night...east winds 5 to 15 knots becoming southeast less
than 10 knots after midnight, then veering south late. waves calm
to 2 feet. 
.wednesday...south winds less than 10 knots backing east by mid
afternoon. waves calm to 2 feet. 
.wednesday night...east winds 5 to 15 knots becoming south less
than 10 knots after midnight. a slight chance of showers and
thunderstorms. waves calm to 2 feet. 
.thursday...south winds less than 10 knots. waves calm to 2 feet.
.thursday night...southwest winds 5 to 15 knots becoming west
less than 10 knots after midnight. a chance of showers and
thunderstorms. waves calm to 2 feet. 
.friday...southwest winds 5 to 15 knots veering northwest. waves
calm to 2 feet. 
.saturday...north winds 5 to 15 knots. waves calm to 2 feet. 

$$

fzus63 kmqt 280201
glfls 
expires:202607280800;;725461

open lake forecast for lake superior
national weather service marquette mi
1001 pm edt mon jul 27 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 ridging builds to near 30.0 inches over lake superior tonight 
into tuesday and remains until thursday morning. the ridging then 
gives way to weak troughing of 29.9 inches before becoming weak 
ridging of 29.9 to 30.0 inches again the rest of this week.




lsz264-280800-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
1001 pm edt mon jul 27 2026

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

.rest of tonight...northwest winds 5 to 15 knots veering north
after midnight, then diminishing to less than 10 knots late.
patchy dense fog. waves calm to 2 feet. 
.tuesday...north winds less than 10 knots backing west in the
afternoon, then backing southwest late. patchy dense fog. waves
calm to 2 feet. 
.tuesday night...southwest winds less than 10 knots backing south
after midnight. waves calm to 2 feet. 
.wednesday...southeast winds less than 10 knots. waves calm to
2 feet. 
.wednesday night...southeast winds 5 to 15 knots. waves calm to
2 feet. 
.thursday...southeast winds less than 10 knots increasing to 5 to
15 knots by mid afternoon. waves calm to 2 feet. 
.thursday night...south winds 5 to 15 knots veering west after
midnight. waves calm to 2 feet. 
.friday...south winds less than 10 knots. waves calm to 2 feet. 
.saturday...north winds less than 10 knots increasing to 5 to
15 knots. waves calm to 2 feet. 

$$

fzus63 kmqt 280201
glfls 
expires:202607280800;;725462

open lake forecast for lake superior
national weather service marquette mi
1001 pm edt mon jul 27 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 ridging builds to near 30.0 inches over lake superior tonight 
into tuesday and remains until thursday morning. the ridging then 
gives way to weak troughing of 29.9 inches before becoming weak 
ridging of 29.9 to 30.0 inches again the rest of this week.




lsz265-280800-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
1001 pm edt mon jul 27 2026

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

.rest of tonight...northwest winds 10 to 20 knots veering north
after midnight, then diminishing to 5 to 15 knots late. waves
calm to 2 feet building to 1 to 3 feet, then subsiding to calm to
2 feet. 
.tuesday...north winds 5 to 15 knots. waves calm to 2 feet. 
.tuesday night...west winds 5 to 15 knots backing south after
midnight. waves calm to 2 feet. 
.wednesday...southeast winds 5 to 15 knots increasing to 10 to
20 knots by mid afternoon. waves calm to 2 feet. 
.wednesday night...southeast winds 5 to 15 knots veering south
after midnight. waves calm to 2 feet. 
.thursday...southeast winds 5 to 15 knots increasing to 10 to
20 knots by mid afternoon. waves calm to 2 feet. 
.thursday night...south winds 5 to 15 knots veering west after
midnight. waves calm to 2 feet. 
.friday...east winds 5 to 15 knots veering southeast. a chance of
showers. waves calm to 2 feet. 
.saturday...north winds 5 to 15 knots. waves calm to 2 feet. 

$$

fzus63 kmqt 280201
glfls 
expires:202607280800;;725463

open lake forecast for lake superior
national weather service marquette mi
1001 pm edt mon jul 27 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 ridging builds to near 30.0 inches over lake superior tonight 
into tuesday and remains until thursday morning. the ridging then 
gives way to weak troughing of 29.9 inches before becoming weak 
ridging of 29.9 to 30.0 inches again the rest of this week.




lsz266-280800-
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 pm edt mon jul 27 2026

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

.rest of tonight...north winds 15 to 25 knots diminishing to 5 to
15 knots. waves 1 to 3 feet building to 2 to 4 feet, then
subsiding to 1 to 3 feet. 
.tuesday...north winds 5 to 15 knots backing northwest in the
afternoon. waves subsiding to calm to 2 feet. 
.tuesday night...northwest winds 5 to 15 knots veering north
after midnight, then veering south late. waves calm to 2 feet. 
.wednesday...southeast winds 5 to 15 knots. waves calm to 2 feet.
.wednesday night...southeast winds 5 to 15 knots. waves calm to
2 feet. 
.thursday...southeast winds 5 to 15 knots. waves calm to 2 feet. 
.thursday night...south winds 5 to 15 knots veering southwest
after midnight. waves calm to 2 feet. 
.friday...southwest winds 5 to 15 knots backing south. waves calm
to 2 feet. 
.saturday...north winds 5 to 15 knots. waves calm to 2 feet. 

$$

fzus63 kmqt 280201
glfls 
expires:202607280800;;725464

open lake forecast for lake superior
national weather service marquette mi
1001 pm edt mon jul 27 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 ridging builds to near 30.0 inches over lake superior tonight 
into tuesday and remains until thursday morning. the ridging then 
gives way to weak troughing of 29.9 inches before becoming weak 
ridging of 29.9 to 30.0 inches again the rest of this week.




lsz267-280800-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
1001 pm edt mon jul 27 2026

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

.rest of tonight...north winds 10 to 20 knots increasing to 15 to
25 knots after midnight, then diminishing to 10 to 20 knots late.
waves calm to 2 feet building to 2 to 4 feet. 
.tuesday...north winds 15 to 25 knots backing northwest in the
afternoon. waves subsiding to 1 to 3 feet, then building to 2 to
4 feet. 
.tuesday night...northwest winds 10 to 20 knots becoming north
5 to 15 knots after midnight. waves subsiding to calm to 2 feet. 
.wednesday...northwest winds 5 to 15 knots. waves calm to 2 feet.
.wednesday night...east winds 5 to 15 knots veering southeast
after midnight. waves calm to 2 feet. 
.thursday...southeast winds 5 to 15 knots backing east by mid
afternoon. waves calm to 2 feet. 
.thursday night...south winds 5 to 15 knots. waves calm to
2 feet. 
.friday...south winds 5 to 15 knots backing northeast. waves calm
to 2 feet. 
.saturday...north winds 5 to 15 knots increasing to 10 to
20 knots. waves calm to 2 feet. 

$$