fzus61 kbuf 140202
glflo 
expires:202607140900;;927938

open lake forecast for lake ontario
national weather service buffalo ny
1002 pm edt mon jul 13 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 large 30.2 inch high will shift off the new england 
coast tonight and tuesday. this will allow a warm front to sweep 
across the lake tuesday, followed by a cold front pushing south 
across the lake on wednesday, trailed by a secondary cold front 
pushing south across the lake thursday into friday.


loz063>065-140900-
lake ontario open waters from hamlin beach to the saint lawrence
river-
1002 pm edt mon jul 13 2026

.overnight...southwest winds 10 to 15 knots increasing to
15 to 20 knots. waves 1 to 3 feet. 
.tuesday...southwest winds 15 to 20 knots becoming west. waves
2 to 4 feet building to 3 to 6 feet. 
.tuesday night...west winds 15 to 20 knots. waves 4 to 7 feet
subsiding to 3 to 6 feet. waves occasionally around 9 feet. 
.wednesday...northwest winds 5 to 15 knots becoming west. waves
3 to 5 feet subsiding to 1 to 3 feet. 
.wednesday night...west winds 5 to 15 knots. waves 2 to 4 feet
subsiding to 1 to 3 feet. 
.thursday...west winds 15 to 20 knots becoming north 10 to
15 knots. waves 1 to 3 feet building to 2 to 4 feet, then
subsiding to 1 to 3 feet. 
.friday...north winds 5 to 10 knots becoming southwest. a chance
of showers friday night. waves 2 feet or less. 
.saturday...south winds 5 to 15 knots becoming northeast. a
chance of showers and thunderstorms. waves 2 feet or less. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kbuf 140202
glflo 
expires:202607140900;;927937

open lake forecast for lake ontario
national weather service buffalo ny
1002 pm edt mon jul 13 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 large 30.2 inch high will shift off the new england 
coast tonight and tuesday. this will allow a warm front to sweep 
across the lake tuesday, followed by a cold front pushing south 
across the lake on wednesday, trailed by a secondary cold front 
pushing south across the lake thursday into friday.


loz062-140900-
lake ontario open waters from the niagara river to hamlin beach-
1002 pm edt mon jul 13 2026

.overnight...southwest winds 15 to 20 knots. waves 1 to
3 feet building to 2 to 4 feet. 
.tuesday...southwest winds 15 to 20 knots. waves 2 to 4 feet
building to 3 to 5 feet. 
.tuesday night...west winds 15 to 20 knots diminishing to 10 to
15 knots. waves 3 to 5 feet subsiding to 2 to 4 feet. 
.wednesday...northwest winds 5 to 10 knots becoming west. waves
1 to 3 feet subsiding to 1 foot or less. 
.wednesday night...northwest winds 5 to 15 knots becoming west.
waves 1 to 2 feet. 
.thursday...west winds 5 to 15 knots becoming north. waves 1 to
3 feet. 
.friday...north winds 5 to 10 knots. a chance of showers friday
night. waves 1 foot or less. 
.saturday...southeast winds 10 to 15 knots becoming north.
showers likely during the day, then a chance of showers and
thunderstorms saturday night. waves 2 feet or less. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 140128
glfle 
expires:202607140830;;927235

open lake forecast for lake erie
national weather service cleveland oh
928 pm edt mon jul 13 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 30.20 inches will build across the great lakes
region and into the ohio valley through wednesday. a cold front
will sink south across lake erie on wednesday night with a
secondary cold front pushing south on friday.


lez162-163-140830-
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-
928 pm edt mon jul 13 2026

.overnight...south winds 5 to 10 knots becoming southwest.
waves 1 foot or less. 
.tuesday...west winds 5 to 10 knots becoming southwest. waves
1 foot or less. 
.tuesday night...southwest winds around 10 knots becoming west.
waves 2 feet or less. 
.wednesday...west winds 10 knots or less becoming southwest.
waves 1 foot or less. 
.wednesday night...east winds 5 to 10 knots becoming north. waves
1 foot or less. 
.thursday...northwest winds 5 to 10 knots becoming northeast.
waves 1 foot or less. 
.friday...northeast winds 5 to 15 knots becoming south. a chance
of showers and thunderstorms friday night. waves 2 feet or less. 
.saturday...southwest winds 10 to 15 knots becoming north.
showers likely with a chance of thunderstorms during the day,
then a chance of showers saturday night. waves 1 to 3 feet. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 140128
glfle 
expires:202607140830;;927237

open lake forecast for lake erie
national weather service cleveland oh
928 pm edt mon jul 13 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 30.20 inches will build across the great lakes
region and into the ohio valley through wednesday. a cold front
will sink south across lake erie on wednesday night with a
secondary cold front pushing south on friday.


lez061-167>169-140830-
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-
928 pm edt mon jul 13 2026

.overnight...southwest winds 5 to 10 knots. waves 2 feet or
less. 
.tuesday...southwest winds 10 to 15 knots increasing to 15 to
20 knots. waves 1 to 3 feet building to 3 to 5 feet. 
.tuesday night...southwest winds 15 to 20 knots becoming west
10 to 15 knots. waves 3 to 5 feet subsiding to 2 to 4 feet. 
.wednesday...west winds 5 to 10 knots. waves 1 to 3 feet. 
.wednesday night...west winds 5 to 10 knots becoming northwest.
waves 2 feet or less. 
.thursday...northwest winds 5 to 10 knots becoming north. waves
1 foot or less. 
.friday...northeast winds 5 to 15 knots becoming south. a chance
of showers and thunderstorms friday night. waves 2 feet or less. 
.saturday...southwest winds 10 to 15 knots becoming northeast.
showers likely with a chance of thunderstorms. waves 1 to 3 feet
building to 3 to 5 feet. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 140128
glfle 
expires:202607140830;;927236

open lake forecast for lake erie
national weather service cleveland oh
928 pm edt mon jul 13 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 30.20 inches will build across the great lakes
region and into the ohio valley through wednesday. a cold front
will sink south across lake erie on wednesday night with a
secondary cold front pushing south on friday.


lez164>166-140830-
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-
928 pm edt mon jul 13 2026

.overnight...south winds 5 to 10 knots becoming southwest.
waves 2 feet or less. 
.tuesday...southwest winds 10 to 15 knots. waves 1 to 3 feet. 
.tuesday night...southwest winds 10 to 15 knots becoming west.
waves 1 to 3 feet. 
.wednesday...west winds 5 to 15 knots diminishing to less than
10 knots. waves 1 to 3 feet subsiding to 1 foot or less. 
.wednesday night...north winds 5 to 10 knots becoming northeast.
waves 1 foot or less. 
.thursday...north winds 10 knots or less. waves 1 foot or less. 
.friday...northeast winds 5 to 15 knots becoming south. a chance
of showers and thunderstorms friday night. waves 2 feet or less. 
.saturday...southwest winds 15 to 20 knots becoming north.
showers likely with a chance of thunderstorms. waves 1 to 3 feet
building to 3 to 5 feet. 

winds and waves higher in and near thunderstorms.

$$

fzus63 kdtx 140200
glfsc 
expires:202607141000;;927840

lake st clair forecast
national weather service detroit/pontiac mi
1000 pm edt mon jul 13 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...high pressure, 30.20 inches, will hold over iowa
through tomorrow. a mainly dry cold front will drop south through
the central great lakes tuesday night and wednesday. weak high
pressure follows for thursday.


lcz460-141000-
lake st clair-
1000 pm edt mon jul 13 2026

.rest of tonight...southwest winds 10 to 15 knots diminishing to 5
to 10 knots after midnight. clear. waves 2 feet or less.
.tuesday...southwest winds 5 to 10 knots. sunny. waves 2 feet or
less.
.tuesday night...southwest winds 5 to 10 knots becoming west 10 to
15 knots in the late evening and overnight. mostly clear. waves 2
feet or less.
.wednesday...northwest winds 5 to 10 knots early in the morning
becoming light and variable...then becoming northeast 5 to 10 knots
early in the afternoon. mostly sunny. waves 2 feet or less.
.wednesday night...northeast winds 10 to 15 knots diminishing to 5
to 10 knots in the late evening and overnight. mostly clear. waves 2
feet or less.
.thursday...north winds 5 to 10 knots. mostly clear. waves 2 feet or
less.
.friday...southeast winds 10 to 15 knots. mostly clear. waves 2 feet
or less.
.saturday...north winds 10 to 15 knots. partly cloudy. showers
likely and a chance of thunderstorms. waves 2 feet or less.

$$

fzus63 kdtx 140159
glflh 
expires:202607141000;;927827

open lake forecast for lake huron
national weather service detroit/pontiac mi
959 pm edt mon jul 13 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...high pressure, 30.20 inches, will hold over iowa
through tomorrow. a mainly dry cold front will drop south through
the central great lakes tuesday night and wednesday. weak high
pressure follows for thursday.


lhz362-363-141000-
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-
959 pm edt mon jul 13 2026

.rest of tonight...southwest winds 5 to 10 knots increasing to
10 to 15 knots early in the morning. waves 1 to 3 feet. 
.tuesday...southwest winds 10 to 15 knots decreasing to 5 to
10 knots in the afternoon. waves 2 to 4 feet. 
.tuesday night...west winds 5 to 10 knots. waves 2 to 4 feet. 
.wednesday...northwest winds 5 to 10 knots. waves 1 to 3 feet. 
.wednesday night...north winds 5 to 10 knots becoming northwest
10 to 15 knots by midnight...then becoming west 5 to 10 knots
after midnight. waves 2 to 4 feet. 
.thursday...northwest winds 5 to 10 knots. waves 1 to 3 feet. 
.friday...north winds 5 to 10 knots veering to the east. a chance
of showers until early evening. rain showers likely by midnight.
waves 2 feet or less. 
.saturday...east winds 5 to 10 knots becoming north 10 to
15 knots . a chance of showers and thunderstorms...then a chance
of showers by midnight. waves 1 to 3 feet. 


$$

fzus63 kdtx 140159
glflh 
expires:202607141000;;927828

open lake forecast for lake huron
national weather service detroit/pontiac mi
959 pm edt mon jul 13 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...high pressure, 30.20 inches, will hold over iowa
through tomorrow. a mainly dry cold front will drop south through
the central great lakes tuesday night and wednesday. weak high
pressure follows for thursday.


lhz462>464-141000-
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-
959 pm edt mon jul 13 2026

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


$$

fzus63 kdtx 140159
glflh 
expires:202607141000;;927826

open lake forecast for lake huron
national weather service detroit/pontiac mi
959 pm edt mon jul 13 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...high pressure, 30.20 inches, will hold over iowa
through tomorrow. a mainly dry cold front will drop south through
the central great lakes tuesday night and wednesday. weak high
pressure follows for thursday.


lhz361-141000-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
959 pm edt mon jul 13 2026

.rest of tonight...southwest winds 5 to 10 knots increasing to
10 to 15 knots after midnight. waves 1 to 3 feet. 
.tuesday...west winds 10 to 15 knots increasing to 15 to 20 knots
late in the afternoon. waves 2 to 4 feet. 
.tuesday night...west winds 10 to 15 knots becoming northwest
5 to 10 knots after midnight. waves 2 to 4 feet subsiding to 1 to
3 feet after midnight. 
.wednesday...northwest winds 5 to 10 knots. waves 2 feet or less.
.wednesday night...northwest winds 10 to 15 knots decreasing to
5 to 10 knots after midnight. waves 1 to 3 feet. 
.thursday...northwest winds 5 to 10 knots increasing to 10 to
15 knots late in the afternoon...then becoming north 5 to
10 knots late in the evening. a chance of showers late in the
evening. waves 1 to 3 feet. 
.friday...northeast winds 5 to 10 knots becoming southeast 10 to
15 knots. a chance of showers early in the morning. a chance of
thunderstorms until early evening. rain showers likely . waves
1 to 3 feet. 
.saturday...east winds 10 to 15 knots backing to the north . a
chance of showers. waves 1 to 3 feet. 


$$

fzus63 kmkx 140208
glflm 
expires:202607140930;;928185

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
908 pm cdt mon jul 13 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...

high pressure of 30.2 inches centered over the heartland from iowa
through indiana will continue to bring dry and warm westerly winds
across lake michigan through wednesday morning. a weak low 
pressure trough around 29.9 inches crossing lake superior tuesday
will usher a weak front with a wind shift to the northeast down 
the axis of lake michigan on wednesday. another low around 29.7
inches will approach from the northern plains thursday into 
friday. 


lmz080-669-671-673-675-777-779-870-872-874-876-878-140930-
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 pm cdt mon jul 13 2026

sheboygan wi to pentwater mi south...

.rest of tonight...southwest winds 10 to 15 kt becoming west.
waves 1 to 2 ft. 
.tuesday...west winds 5 to 10 kt becoming southwest 10 to 15 kt.
waves 1 to 2 ft. 
.tuesday night...southwest winds 10 to 20 kt becoming west 10 to
15 kt. waves 1 to 3 ft. 
.wednesday...northwest winds 10 to 15 kt becoming north 10 to
20 kt. waves 1 to 3 ft. 
.wednesday night...north winds 10 to 20 kt becoming northwest
5 to 10 kt overnight. waves 1 to 2 ft. 
.thursday...northwest winds 5 to 10 kt becoming north 10 to
15 kt. waves 1 ft or less. 
.thursday night...north winds 10 to 15 kt becoming northeast.
waves 1 to 2 ft. 
.friday...south winds 10 to 20 kt. waves 1 to 3 ft. 
.saturday...west winds 10 to 20 kt becoming north to 30 kt.
chance of showers. waves 3 to 5 ft.  

$$

fzus63 kmkx 140208
glflm 
expires:202607140930;;928184

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
908 pm cdt mon jul 13 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...

high pressure of 30.2 inches centered over the heartland from iowa
through indiana will continue to bring dry and warm westerly winds
across lake michigan through wednesday morning. a weak low 
pressure trough around 29.9 inches crossing lake superior tuesday
will usher a weak front with a wind shift to the northeast down 
the axis of lake michigan on wednesday. another low around 29.7
inches will approach from the northern plains thursday into 
friday. 


lmz261-362-364-366-563-565-567-868-140930-
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 pm cdt mon jul 13 2026

sheboygan wi to pentwater mi north...

.rest of tonight...southwest winds 10 to 20 kt becoming west.
waves 1 to 3 ft. 
.tuesday...west winds 10 to 20 kt becoming southwest. waves 1 to
3 ft. 
.tuesday night...southwest winds 15 to 25 kt becoming west 10 to
20 kt late in the evening, then becoming north 10 to 15 kt late. 
waves 2 to 4 ft. 
.wednesday...north winds 10 to 15 kt increasing to 10 to 20 kt.
waves 1 to 3 ft. 
.wednesday night...north winds 10 to 15 kt diminishing to 5 to
10 kt. waves 1 to 2 ft. 
.thursday...northwest winds 5 to 10 kt becoming north. waves 1 ft
or less. 
.thursday night...northeast winds 10 to 15 kt becoming east.
waves 1 to 2 ft. 
.friday...southeast winds 10 to 20 kt. chance of showers and
thunderstorms. waves 1 to 3 ft. 
.saturday...north winds 10 to 20 kt becoming northeast to 30 kt.
chance of showers. waves 3 to 5 ft.  

$$

fzus63 kmqt 140218 cca
glfls 
expires:202607140800;;928717

open lake forecast for lake superior...corrected
national weather service marquette mi
1018 pm edt mon jul 13 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... 

29.9 to 30.0 inch ridging remains over lake superior this evening 
into tuesday evening, before a weakening high pressure moving in 
from the canadian prairies strengthens the ridging to 30.1 inches on 
wednesday. the 30.1 inch ridging persists until friday morning. 
expect the ridging to retreat east towards the st. lawrence seaway 
and to weaken with time on friday. a low pressure of at least 29.8 
inches could impact the upper great lakes this weekend, although 
uncertainty remains high on the track and strength of it. 


lsz162-140800-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
1018 pm edt mon jul 13 2026 /918 pm cdt mon jul 13 2026/

.rest of tonight...southwest winds 20 to 30 knots diminishing to
15 to 25 knots after midnight. waves 3 to 6 feet occasionally to
8 feet subsiding to 2 to 4 feet. 
.tuesday...southwest winds 15 to 25 knots diminishing to 10 to
20 knots in the afternoon, then veering west late. waves
subsiding to 1 to 3 feet. 
.tuesday night...west winds 10 to 20 knots becoming north 5 to
15 knots after midnight, then backing northwest late. waves
subsiding to calm to 2 feet. 
.wednesday...northwest winds 5 to 15 knots backing southwest by
mid afternoon. waves calm to 2 feet. 
.wednesday night...west winds 5 to 15 knots veering northwest
after midnight. waves calm to 2 feet. 
.thursday...northeast winds 5 to 15 knots increasing to 10 to
20 knots by mid afternoon. waves calm to 2 feet. 
.thursday night...northeast winds 10 to 20 knots diminishing to
5 to 15 knots after midnight. a chance of showers and
thunderstorms. waves calm to 2 feet. 
.friday...northeast winds 10 to 20 knots. a chance of showers.
waves building to 2 to 4 feet, then subsiding to calm to 2 feet. 
.saturday...northeast winds 5 to 15 knots. waves calm to 2 feet. 

$$

fzus63 kmqt 140218 cca
glfls 
expires:202607140800;;928718

open lake forecast for lake superior...corrected
national weather service marquette mi
1018 pm edt mon jul 13 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... 

29.9 to 30.0 inch ridging remains over lake superior this evening 
into tuesday evening, before a weakening high pressure moving in 
from the canadian prairies strengthens the ridging to 30.1 inches on 
wednesday. the 30.1 inch ridging persists until friday morning. 
expect the ridging to retreat east towards the st. lawrence seaway 
and to weaken with time on friday. a low pressure of at least 29.8 
inches could impact the upper great lakes this weekend, although 
uncertainty remains high on the track and strength of it. 


lsz263-140800-
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-
1018 pm edt mon jul 13 2026

.rest of tonight...southwest winds 20 to 30 knots veering west
late. waves 5 to 8 feet occasionally to 10 feet subsiding to 3 to
6 feet occasionally to 8 feet. 
.tuesday...west winds 15 to 25 knots diminishing to 10 to
20 knots late. waves subsiding to 2 to 4 feet. 
.tuesday night...west winds 10 to 20 knots becoming northwest
5 to 15 knots after midnight. waves subsiding to calm to 2 feet. 
.wednesday...northwest winds less than 10 knots becoming
southwest 5 to 15 knots by mid afternoon. waves calm to 2 feet. 
.wednesday night...west winds 5 to 15 knots. waves calm to
2 feet. 
.thursday...north winds 5 to 15 knots veering east by mid
afternoon. waves calm to 2 feet. 
.thursday night...east winds 5 to 15 knots. a chance of showers.
a chance of thunderstorms after midnight. waves calm to 2 feet. 
.friday...east winds 10 to 20 knots backing northeast. a chance
of showers. waves building to 1 to 3 feet, then subsiding to calm
to 2 feet. 
.saturday...northeast winds 5 to 15 knots backing north. waves
calm to 2 feet. 

$$

fzus63 kmqt 140218 cca
glfls 
expires:202607140800;;928719

open lake forecast for lake superior...corrected
national weather service marquette mi
1018 pm edt mon jul 13 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... 

29.9 to 30.0 inch ridging remains over lake superior this evening 
into tuesday evening, before a weakening high pressure moving in 
from the canadian prairies strengthens the ridging to 30.1 inches on 
wednesday. the 30.1 inch ridging persists until friday morning. 
expect the ridging to retreat east towards the st. lawrence seaway 
and to weaken with time on friday. a low pressure of at least 29.8 
inches could impact the upper great lakes this weekend, although 
uncertainty remains high on the track and strength of it. 


lsz264-140800-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
1018 pm edt mon jul 13 2026

.rest of tonight...west winds 20 to 30 knots. waves 4 to 8 feet
occasionally to 10 feet. 
.tuesday...west winds 20 to 30 knots diminishing to 15 to
25 knots in the afternoon, then becoming southwest 10 to 20 knots
late. waves subsiding to 1 to 3 feet. 
.tuesday night...west winds 5 to 15 knots veering northwest after
midnight, then backing west late. waves subsiding to calm to
2 feet. 
.wednesday...northwest winds 5 to 15 knots backing west by mid
afternoon. waves calm to 2 feet. 
.wednesday night...west winds 5 to 15 knots. waves calm to
2 feet. 
.thursday...north winds 5 to 15 knots backing west by mid
afternoon. waves calm to 2 feet. 
.thursday night...northwest winds 5 to 15 knots veering east
after midnight. a chance of showers. waves calm to 2 feet. 
.friday...east winds 5 to 15 knots backing northeast. a chance of
showers. waves calm to 2 feet. 
.saturday...northeast winds 5 to 15 knots backing northwest.
waves calm to 2 feet. 

$$

fzus63 kmqt 140218 cca
glfls 
expires:202607140800;;928720

open lake forecast for lake superior...corrected
national weather service marquette mi
1018 pm edt mon jul 13 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... 

29.9 to 30.0 inch ridging remains over lake superior this evening 
into tuesday evening, before a weakening high pressure moving in 
from the canadian prairies strengthens the ridging to 30.1 inches on 
wednesday. the 30.1 inch ridging persists until friday morning. 
expect the ridging to retreat east towards the st. lawrence seaway 
and to weaken with time on friday. a low pressure of at least 29.8 
inches could impact the upper great lakes this weekend, although 
uncertainty remains high on the track and strength of it. 


lsz265-140800-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
1018 pm edt mon jul 13 2026

.rest of tonight...west winds 20 to 30 knots. waves 2 to 4 feet 
building to 3 to 5 feet occasionally to 7 feet.
.tuesday...west winds 20 to 30 knots becoming northwest 10 to
20 knots late. waves subsiding to calm to 2 feet. 
.tuesday night...west winds 5 to 15 knots veering northwest after
midnight, then backing west late. waves calm to 2 feet. 
.wednesday...northwest winds 5 to 15 knots veering north by mid
afternoon. waves calm to 2 feet. 
.wednesday night...west winds 5 to 15 knots. waves calm to
2 feet. 
.thursday...north winds 10 to 20 knots diminishing to 5 to
15 knots by mid afternoon. waves calm to 2 feet. 
.thursday night...southeast winds 5 to 15 knots becoming east
10 to 20 knots after midnight. a chance of showers. waves calm to
2 feet. 
.friday...southeast winds 10 to 20 knots backing east. a chance
of showers and thunderstorms. waves building to 1 to 3 feet, then
subsiding to calm to 2 feet. 
.saturday...northeast winds 10 to 20 knots backing north. a
chance of showers. waves calm to 2 feet. 

$$

fzus63 kmqt 140218 cca
glfls 
expires:202607140800;;928721

open lake forecast for lake superior...corrected
national weather service marquette mi
1018 pm edt mon jul 13 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... 

29.9 to 30.0 inch ridging remains over lake superior this evening 
into tuesday evening, before a weakening high pressure moving in 
from the canadian prairies strengthens the ridging to 30.1 inches on 
wednesday. the 30.1 inch ridging persists until friday morning. 
expect the ridging to retreat east towards the st. lawrence seaway 
and to weaken with time on friday. a low pressure of at least 29.8 
inches could impact the upper great lakes this weekend, although 
uncertainty remains high on the track and strength of it. 


lsz266-140800-
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-
1018 pm edt mon jul 13 2026

.rest of tonight...southwest winds 20 to 30 knots veering west
after midnight. waves 4 to 8 feet occasionally to 10 feet. 
.tuesday...west winds 20 to 30 knots becoming northwest 15 to
25 knots in the afternoon, then diminishing to 10 to 20 knots
late. waves subsiding to 2 to 4 feet. 
.tuesday night...northwest winds 5 to 15 knots. waves subsiding
to calm to 2 feet. 
.wednesday...northwest winds 5 to 15 knots backing west by mid
afternoon. waves calm to 2 feet. 
.wednesday night...west winds 5 to 15 knots. waves calm to
2 feet. 
.thursday...north winds 5 to 15 knots backing northwest by mid
afternoon. waves calm to 2 feet. 
.thursday night...northwest winds 5 to 15 knots veering east
after midnight. a chance of showers. waves calm to 2 feet. 
.friday...southeast winds 10 to 20 knots backing east. a chance
of showers. waves building to 1 to 3 feet, then subsiding to calm
to 2 feet. 
.saturday...northeast winds 10 to 20 knots backing north. a
chance of showers. waves calm to 2 feet. 

$$

fzus63 kmqt 140218 cca
glfls 
expires:202607140800;;928722

open lake forecast for lake superior...corrected
national weather service marquette mi
1018 pm edt mon jul 13 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... 

29.9 to 30.0 inch ridging remains over lake superior this evening 
into tuesday evening, before a weakening high pressure moving in 
from the canadian prairies strengthens the ridging to 30.1 inches on 
wednesday. the 30.1 inch ridging persists until friday morning. 
expect the ridging to retreat east towards the st. lawrence seaway 
and to weaken with time on friday. a low pressure of at least 29.8 
inches could impact the upper great lakes this weekend, although 
uncertainty remains high on the track and strength of it. 


lsz267-140800-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
1018 pm edt mon jul 13 2026

.rest of tonight...south winds 5 to 15 knots becoming west 10 to
20 knots after midnight, then increasing to 15 to 25 knots late.
waves calm to 2 feet building to 5 to 8 feet occasionally to
10 feet. 
.tuesday...west winds 15 to 25 knots diminishing to 5 to
15 knots. waves subsiding to 2 to 4 feet. 
.tuesday night...west winds 5 to 15 knots increasing to 10 to
20 knots late. waves subsiding to calm to 2 feet. 
.wednesday...west winds 5 to 15 knots increasing to 10 to
20 knots by mid afternoon. waves calm to 2 feet. 
.wednesday night...west winds 5 to 15 knots. waves calm to
2 feet. 
.thursday...northwest winds 5 to 15 knots becoming west 10 to
20 knots by mid afternoon. waves calm to 2 feet. 
.thursday night...northwest winds 5 to 15 knots veering east
after midnight. a chance of showers after midnight. waves calm to
2 feet. 
.friday...east winds 10 to 20 knots. a chance of showers. waves
calm to 2 feet. 
.saturday...northeast winds 10 to 20 knots backing north. a
chance of showers. waves calm to 2 feet. 

$$