fzus61 kbuf 131403
glflo 
expires:202610132100;;027478

open lake forecast for lake ontario
national weather service buffalo ny
1003 am edt tue oct 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 cold front will sweep southeast across the lower 
great lakes this afternoon. behind the cold front, a ridge averaging 
30.2 inches will build in from northern ontario through thursday. a 
low averaging 29.5 inches may move across the great lakes region 
friday. there is uncertainty in the track of this low, with the 
potential of deepening as it crosses the region. a 30.5 inch high 
will build into the great lakes region this weekend.


loz063>065-132100-
lake ontario open waters from hamlin beach to the saint lawrence
river-
1003 am edt tue oct 13 2026

.rest of today...south winds 5 to 15 knots. showers with a chance
of thunderstorms. waves 2 feet or less. 
.tonight...southwest winds 10 to 15 knots becoming west. showers
likely with a chance of thunderstorms early, then a chance of
showers and thunderstorms late in the evening. waves 1 to 3 feet
building to 2 to 4 feet. 
.wednesday...northwest winds 10 to 15 knots becoming west. waves
2 to 4 feet subsiding to 1 to 3 feet. 
.wednesday night...northwest winds 10 to 15 knots becoming north
15 to 20 knots. waves 1 to 3 feet building to 2 to 4 feet. 
.thursday...northeast winds 5 to 15 knots becoming southeast.
showers thursday night. waves 2 to 4 feet subsiding to 2 feet or
less. 
.friday...southwest winds 15 to 25 knots becoming northwest and
increasing to 35 knot gales. showers. waves 3 to 5 feet building
to 9 to 13 feet. waves occasionally around 16 feet. 
.saturday...northwest gales to 35 knots becoming west and
diminishing to 15 to 20 knots. a chance of rain showers during
the day. waves 10 to 13 feet subsiding to 4 to 7 feet. waves
occasionally around 16 feet. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kbuf 131403
glflo 
expires:202610132100;;027477

open lake forecast for lake ontario
national weather service buffalo ny
1003 am edt tue oct 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 cold front will sweep southeast across the lower 
great lakes this afternoon. behind the cold front, a ridge averaging 
30.2 inches will build in from northern ontario through thursday. a 
low averaging 29.5 inches may move across the great lakes region 
friday. there is uncertainty in the track of this low, with the 
potential of deepening as it crosses the region. a 30.5 inch high 
will build into the great lakes region this weekend.


loz062-132100-
lake ontario open waters from the niagara river to hamlin beach-
1003 am edt tue oct 13 2026

.rest of today...southwest winds 10 to 15 knots increasing to
15 to 20 knots. showers likely with a chance of thunderstorms
late this morning, then a chance of showers and thunderstorms
early this afternoon. a chance of showers late. waves 1 to
3 feet. 
.tonight...southwest winds 15 to 20 knots becoming west 10 to
15 knots. waves 2 to 4 feet. 
.wednesday...west winds 10 to 15 knots becoming northwest. waves
1 to 3 feet. 
.wednesday night...northwest winds 10 to 15 knots becoming
northeast. waves 1 to 3 feet. 
.thursday...northeast winds 10 to 15 knots becoming east. showers
thursday night. waves 1 to 3 feet. 
.friday...west winds 15 to 25 knots becoming northwest to
30 knots. showers. waves 3 to 5 feet building to 8 to 11 feet.
waves occasionally around 14 feet. 
.saturday...northwest winds to 30 knots becoming west 15 to
25 knots. waves 7 to 10 feet subsiding to 3 to 6 feet. waves
occasionally around 13 feet. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 131343
glfle 
expires:202610132015;;026779

open lake forecast for lake erie
national weather service cleveland oh
943 am edt tue oct 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...
low pressure 29.80 inches passes north of the lake today dragging
a cold front over lake erie this evening. the front will push
south wednesday morning before high pressure 30.10 inches briefly
builds north of the lake wednesday night and thursday. a strong 
cold front will pass over the region friday morning as low 
pressure 29.60 inches moves north of the lake. high pressure 30.40
inches builds in from the west saturday.


lez162-163-132015-
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-
943 am edt tue oct 13 2026

.rest of today...southwest winds 15 to 20 knots becoming west.
waves 1 to 3 feet. 
.tonight...west winds 5 to 15 knots becoming northwest less than
10 knots. a slight chance of showers and thunderstorms after
midnight. showers likely with a slight chance of thunderstorms
late. waves 1 to 3 feet subsiding to 1 foot or less. 
.wednesday...north winds 5 to 10 knots becoming northeast. a
chance of showers in the morning. waves 1 foot or less. 
.wednesday night...northeast winds 10 to 15 knots increasing to
15 to 20 knots. waves 1 to 3 feet building to 2 to 4 feet. 
.thursday...northeast winds 10 to 15 knots becoming southwest
15 to 20 knots. showers likely during the day, then showers
thursday night. waves 1 to 3 feet. 
.friday...northwest winds to 30 knots. a chance of showers during
the day. waves 3 to 6 feet building to 4 to 7 feet, then
subsiding to 3 to 6 feet. waves occasionally around 9 feet. 
.saturday...northwest winds to 30 knots becoming southwest and
diminishing to 10 to 15 knots. waves 3 to 5 feet subsiding to
1 to 3 feet. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 131343
glfle 
expires:202610132015;;026780

open lake forecast for lake erie
national weather service cleveland oh
943 am edt tue oct 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...
low pressure 29.80 inches passes north of the lake today dragging
a cold front over lake erie this evening. the front will push
south wednesday morning before high pressure 30.10 inches briefly
builds north of the lake wednesday night and thursday. a strong 
cold front will pass over the region friday morning as low 
pressure 29.60 inches moves north of the lake. high pressure 30.40
inches builds in from the west saturday.


lez164>166-132015-
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-
943 am edt tue oct 13 2026

.rest of today...southwest winds 15 to 20 knots. waves 3 to
5 feet. 
.tonight...west winds 15 to 20 knots becoming northwest and
diminishing to less than 10 knots after midnight. a chance of
showers with a slight chance of thunderstorms late. waves 3 to
5 feet subsiding to 1 to 3 feet. 
.wednesday...northwest winds 5 to 10 knots becoming north. a
chance of showers. waves 1 foot or less. 
.wednesday night...north winds 15 to 20 knots becoming northeast.
waves 1 to 3 feet building to 2 to 4 feet. 
.thursday...east winds 10 to 15 knots becoming southwest 15 to
20 knots. a chance of showers during the day, then showers
thursday night. waves 2 to 4 feet subsiding to 1 to 3 feet. 
.friday...northwest winds to 30 knots increasing to 35 knot
gales. showers likely during the day. waves 6 to 9 feet building
to 8 to 12 feet. waves occasionally around 15 feet. 
.saturday...northwest winds to 30 knots becoming southwest and
diminishing to 15 to 20 knots. waves 7 to 10 feet subsiding to
2 to 4 feet. waves occasionally around 13 feet. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 131343
glfle 
expires:202610132015;;026781

open lake forecast for lake erie
national weather service cleveland oh
943 am edt tue oct 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...
low pressure 29.80 inches passes north of the lake today dragging
a cold front over lake erie this evening. the front will push
south wednesday morning before high pressure 30.10 inches briefly
builds north of the lake wednesday night and thursday. a strong 
cold front will pass over the region friday morning as low 
pressure 29.60 inches moves north of the lake. high pressure 30.40
inches builds in from the west saturday.


lez061-167>169-132015-
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-
943 am edt tue oct 13 2026

.rest of today...southwest winds 15 to 20 knots. a slight chance
of showers and thunderstorms late this morning. waves 3 to
6 feet. 
.tonight...west winds 15 to 20 knots becoming northwest 5 to
15 knots. a slight chance of showers and thunderstorms late.
waves 3 to 6 feet subsiding to 1 to 3 feet. 
.wednesday...northwest winds 5 to 15 knots. a chance of showers.
waves 1 to 2 feet. 
.wednesday night...north winds 10 to 15 knots becoming northeast.
waves 1 to 3 feet building to 2 to 4 feet. 
.thursday...northeast winds 10 to 15 knots becoming south 15 to
20 knots. a chance of showers during the day, then showers
thursday night. waves 1 to 3 feet. 
.friday...west winds to 30 knots becoming northwest and
increasing to 35 knot gales. showers likely during the day, then
a chance of showers friday night. waves 6 to 9 feet building to
9 to 12 feet. waves occasionally around 15 feet. 
.saturday...northwest winds to 30 knots becoming west and
diminishing to 10 to 15 knots. waves 7 to 10 feet subsiding to
3 to 5 feet. waves occasionally around 13 feet. 

winds and waves higher in and near thunderstorms.

$$

fzus63 kdtx 131353
glfsc 
expires:202610132200;;027012

lake st clair forecast
national weather service detroit/pontiac mi
953 am edt tue oct 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...low pressure, 29.60 inches, moves across northern
lower michigan this morning. departure of this system will then
facilitate the passage of a cold front tomorrow morning, bringing
breezy northwest flow across northern lake huron.


lcz460-132200-
lake st clair-
953 am edt tue oct 13 2026

.rest of today...southwest winds 15 to 20 knots. sunny. waves 1 to 3
feet.
.tonight...west winds 10 to 15 knots becoming northwest 5 to 10
knots after midnight. clear in the evening...then partly cloudy with
a chance of light rain after midnight. waves 2 feet or less.
.wednesday...north winds 5 to 10 knots. mostly cloudy. waves 2 feet
or less.
.wednesday night...northeast winds 10 to 15 knots. partly cloudy
becoming mostly cloudy. waves 1 to 3 feet.
.thursday...east winds 10 to 15 knots diminishing to 5 to 10 knots
in the afternoon...then increasing to 10 to 15 knots in the evening.
partly sunny in the morning becoming mostly cloudy. a chance of
light rain in the afternoon. light rain likely in the evening. waves
2 feet or less.
.friday...northwest at 35 knot gales with gusts to 40 knot gales.
partly cloudy. light rain likely. waves 3 to 5 feet. waves
occasionally around 7 feet.  a gale warning may be needed.
.saturday...west at 35 knot gales with gusts to 40 knot gales.
clear. waves 3 to 5 feet. waves occasionally around 7 feet.

$$

fzus63 kdtx 131352
glflh 
expires:202610132200;;027010

open lake forecast for lake huron
national weather service detroit/pontiac mi
952 am edt tue oct 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...low pressure, 29.60 inches, moves across northern
lower michigan this morning. departure of this system will then
facilitate the passage of a cold front tomorrow morning, bringing
breezy northwest flow across northern lake huron.


lhz463-464-132200-
lake huron from harbor beach to port sanilac beyond 5nm off shore-
lake huron from port sanilac to port huron beyond 5nm off shore-
952 am edt tue oct 13 2026

.rest of today...south winds 10 to 15 knots becoming southwest
15 to 20 knots in the afternoon. waves 2 to 4 feet. 
.tonight...northwest winds 10 to 15 knots decreasing to 5 to
10 knots after midnight. waves 2 to 4 feet subsiding to 1 to
3 feet in the late evening and overnight. 
.wednesday...northwest winds 10 to 15 knots. waves 1 to 3 feet
building to 2 to 4 feet early in the afternoon. 
.wednesday night...north winds 10 to 15 knots increasing to 15 to
20 knots by midnight...then decreasing to 10 to 15 knots after
midnight. waves 3 to 5 feet. 
.thursday...northeast winds 10 to 15 knots becoming southeast
5 to 10 knots. a chance of rain late in the morning. rain likely
late in the afternoon. waves 2 to 4 feet subsiding to 1 to
3 feet. 
.friday...west winds 15 to 20 knots with gusts to around 30 knots
becoming northwest at 40 knot gales with gusts to 45 knot gales.
rain early in the morning...then rain likely until early evening.
a chance of rain by midnight. waves 4 to 6 feet building to 18 to
23 feet. waves occasionally around 28 feet. a gale warning may be
needed. 
.saturday...northwest winds to 30 knots with gusts to 35 knot
gales decreasing to 15 to 20 knots until early evening...then
becoming west 10 to 15 knots by midnight. waves 14 to 18 feet
subsiding to 2 to 4 feet. waves occasionally around 23 feet. 


$$

fzus63 kdtx 131352
glflh 
expires:202610132200;;027009

open lake forecast for lake huron
national weather service detroit/pontiac mi
952 am edt tue oct 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...low pressure, 29.60 inches, moves across northern
lower michigan this morning. departure of this system will then
facilitate the passage of a cold front tomorrow morning, bringing
breezy northwest flow across northern lake huron.


lhz363-462-132200-
lake huron from sturgeon point to alabaster mi beyond 5nm off
shore-
lake huron from port austin to harbor beach beyond 5nm off shore-
952 am edt tue oct 13 2026

.rest of today...southwest winds 10 to 15 knots veering to the
west late in the afternoon. waves 2 to 4 feet. 
.tonight...northwest winds 10 to 15 knots. waves 2 to 4 feet. 
.wednesday...northwest winds 10 to 15 knots. waves 2 to 4 feet. 
.wednesday night...north winds 15 to 20 knots decreasing to 10 to
15 knots after midnight. waves 3 to 5 feet. 
.thursday...northeast winds 10 to 15 knots becoming southeast
5 to 10 knots. rain likely late in the afternoon. rain late in
the evening. waves 2 to 4 feet subsiding to 1 to 3 feet. 
.friday...west winds 20 to 25 knots with gusts to around 30 knots
becoming northwest at 40 knot gales with storm force gusts to
50 knots. rain early in the morning. a chance of rain . waves
6 to 9 feet building to 15 to 20 feet. waves occasionally around
25 feet. a gale warning may be needed. 
.saturday...northwest winds to 30 knots with gusts to 35 knot
gales decreasing to 15 to 20 knots until early evening...then
backing to the west by midnight. waves 12 to 16 feet subsiding to
3 to 5 feet. waves occasionally around 20 feet. 


$$

fzus63 kdtx 131352
glflh 
expires:202610132200;;027008

open lake forecast for lake huron
national weather service detroit/pontiac mi
952 am edt tue oct 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...low pressure, 29.60 inches, moves across northern
lower michigan this morning. departure of this system will then
facilitate the passage of a cold front tomorrow morning, bringing
breezy northwest flow across northern lake huron.


lhz361-362-132200-
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-
952 am edt tue oct 13 2026

.rest of today...east winds 10 to 15 knots decreasing to 5 to
10 knots early in the afternoon...then backing to the east 5 to
10 knots late in the afternoon. a chance of rain. waves 2 to
4 feet subsiding to 1 to 3 feet in the afternoon. 
.tonight...northwest winds 5 to 10 knots increasing to 15 to
20 knots. waves 1 to 3 feet building to 2 to 4 feet after
midnight. 
.wednesday...northwest winds 15 to 20 knots. waves 3 to 5 feet. 
.wednesday night...northwest winds 15 to 20 knots becoming north
10 to 15 knots in the late evening and overnight. waves 3 to
5 feet subsiding to 2 to 4 feet after midnight. 
.thursday...east winds 10 to 15 knots decreasing to 5 to 10 knots
late in the morning...then veering to the southeast late in the
evening. rain likely late in the afternoon. rain late in the
evening. waves 1 to 3 feet. 
.friday...west winds 20 to 25 knots with gusts to 40 knot gales
becoming northwest at 40 knot gales with storm force gusts to
50 knots until early evening...then decreasing to 30 knots with
gusts to 45 knot gales by midnight. rain early in the morning.
rain likely in the late morning and early afternoon...then a
chance of rain early in the evening. waves 6 to 9 feet building
to 14 to 18 feet. waves occasionally around 23 feet. a gale
warning may be needed. 
.saturday...northwest winds 20 to 25 knots with gusts to 35 knot
gales becoming west 15 to 20 knots until early evening...then
decreasing to 10 to 15 knots by midnight. waves 8 to 12 feet
subsiding to 4 to 6 feet. waves occasionally around 15 feet. 


$$

fzus63 kmkx 131407
glflm 
expires:202610132130;;027716

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
907 am cdt tue oct 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...

west to northwest winds are expected today, remaining breezy as 
low pressure departs east. light north winds expected tonight 
night, with isolated thunderstorms possible across far southern 
portions of the lake. northerly winds continue wednesday as high 
pressure moves eastward over the northern half of the lake, then 
easterly into wednesday night as high pressure moves eastward. 
winds weaken into thursday as low pressure moves east through the 
mississippi valley, then become northwesterly gales late thursday 
night into friday as low pressure moves into the eastern great 
lakes and intensifies. a few storm force gusts are possible 
friday.


lmz080-669-671-673-675-777-779-870-872-874-876-878-132130-
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-
907 am cdt tue oct 13 2026

sheboygan wi to pentwater mi south...

.rest of today...west winds 10 to 20 kt becoming northwest 10 to
15 kt. waves 4 to 7 ft occasionally to 9 ft subsiding to 2 to
4 ft. 
.tonight...north winds 5 to 10 kt becoming northeast. chance of
showers and slight chance of thunderstorms. waves 1 to 3 ft
subsiding to 1 to 2 ft. 
.wednesday...northeast winds 10 to 15 kt becoming north 10 to
20 kt. waves 1 to 3 ft building to 4 to 6 ft occasionally to
8 ft. 
.wednesday night...northeast winds 10 to 20 kt becoming east.
waves 4 to 6 ft occasionally to 8 ft. 
.thursday...east winds 10 to 20 kt. chance of showers in the
morning, then showers likely in the afternoon. waves 4 to 6 ft
occasionally to 8 ft. 
.thursday night...northeast winds 10 to 15 kt backing to
northwest gales to 35 kt. showers likely. waves 2 to 4 ft
building to 7 to 10 ft occasionally to 13 ft. 
.friday...northwest gales to 45 kt. chance of showers. waves
18 to 23 ft occasionally to 30 ft. 
.saturday...northwest winds 10 to 20 kt becoming southwest 15 to
25 kt. waves 6 to 9 ft occasionally to 12 ft subsiding to 3 to
5 ft.  

$$

fzus63 kmkx 131407
glflm 
expires:202610132130;;027715

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
907 am cdt tue oct 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...

west to northwest winds are expected today, remaining breezy as 
low pressure departs east. light north winds expected tonight 
night, with isolated thunderstorms possible across far southern 
portions of the lake. northerly winds continue wednesday as high 
pressure moves eastward over the northern half of the lake, then 
easterly into wednesday night as high pressure moves eastward. 
winds weaken into thursday as low pressure moves east through the 
mississippi valley, then become northwesterly gales late thursday 
night into friday as low pressure moves into the eastern great 
lakes and intensifies. a few storm force gusts are possible 
friday.


lmz261-362-364-366-563-565-567-868-132130-
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-
907 am cdt tue oct 13 2026

sheboygan wi to pentwater mi north...

.rest of today...west winds 10 to 20 kt becoming northwest.
patchy fog through mid morning. chance of showers through mid
morning. waves 4 to 6 ft occasionally to 8 ft subsiding to 2 to
4 ft. 
.tonight...north winds 10 to 20 kt. waves 1 to 3 ft. 
.wednesday...north winds 10 to 20 kt. waves 2 to 4 ft. 
.wednesday night...north winds 10 to 20 kt becoming northeast.
waves 2 to 4 ft. 
.thursday...southeast winds 10 to 15 kt. waves 2 to 4 ft. 
.thursday night...southwest winds 10 to 15 kt becoming northwest
gales to 35 kt. rain showers likely. waves 1 to 2 ft building to
6 to 9 ft occasionally to 12 ft. 
.friday...northwest gales to 45 kt. chance of rain showers. waves
14 to 18 ft occasionally to 23 ft. 
.saturday...west winds 10 to 20 kt becoming southwest to 30 kt.
waves 4 to 6 ft occasionally to 8 ft subsiding to 2 to 4 ft.  

$$

fzus63 kmqt 131401
glfls 
expires:202610132000;;027343

open lake forecast for lake superior
national weather service marquette mi
1001 am edt tue oct 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...

lake superior remains situated between a 29.6 inch low over 
wisconsin and a 30.2 inch high over quebec. ridging dominates over 
lake superior midweek as the low marches east and high pressure of 
30.2 inches builds over the dakotas by wednesday afternoon. the high 
further builds to 30.3 inches over lake superior wednesday night 
while a 29.9 inch low develops over saskatchewan. by thursday 
evening, this low weakens to 29.9 inches over northern ontario as 
the high moves to new england, then the low rapidly deepens into 
friday while tracking towards new england. meanwhile, 30.6 inch high 
pressure expands across the plains for friday. pressure increases 
rapidly over the upper great lakes friday afternoon into saturday, 
reaching 30.4 inches by saturday morning, then decreasing to 30.0 
inches by saturday night as the high collapses southeast.




lsz162-132000-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
1001 am edt tue oct 13 2026 /901 am cdt tue oct 13 2026/

.rest of today...north winds 5 to 15 knots backing west late.
waves 3 to 6 feet occasionally to 8 feet subsiding to 1 to
3 feet. 
.tonight...northwest winds 5 to 15 knots increasing to 10 to
20 knots after midnight. waves subsiding to calm to 2 feet. 
.wednesday...northwest winds 10 to 20 knots diminishing to 5 to
15 knots in the afternoon. waves calm to 2 feet. 
.wednesday night...east winds 5 to 15 knots veering southeast
after midnight. waves calm to 2 feet. 
.thursday...south winds 5 to 15 knots becoming southwest 10 to
20 knots by mid afternoon. a slight chance of showers by mid
afternoon. waves calm to 2 feet. 
.thursday night...northwest winds 20 to 30 knots increasing to
gales to 40 knots after midnight. waves building to 6 to 9 feet
occasionally to 11 feet. 
.friday...northwest gales to 40 knots diminishing to 10 to
20 knots. waves building to 8 to 11 feet occasionally to 14 feet,
then subsiding to calm to 2 feet. 
.saturday...southwest winds 20 to 30 knots increasing to gales to
35 knots. waves building to 6 to 9 feet occasionally to 11 feet. 

$$

fzus63 kmqt 131401
glfls 
expires:202610132000;;027344

open lake forecast for lake superior
national weather service marquette mi
1001 am edt tue oct 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...

lake superior remains situated between a 29.6 inch low over 
wisconsin and a 30.2 inch high over quebec. ridging dominates over 
lake superior midweek as the low marches east and high pressure of 
30.2 inches builds over the dakotas by wednesday afternoon. the high 
further builds to 30.3 inches over lake superior wednesday night 
while a 29.9 inch low develops over saskatchewan. by thursday 
evening, this low weakens to 29.9 inches over northern ontario as 
the high moves to new england, then the low rapidly deepens into 
friday while tracking towards new england. meanwhile, 30.6 inch high 
pressure expands across the plains for friday. pressure increases 
rapidly over the upper great lakes friday afternoon into saturday, 
reaching 30.4 inches by saturday morning, then decreasing to 30.0 
inches by saturday night as the high collapses southeast.




lsz263-132000-
lake superior from saxon harbor wi to upper entrance to portage
canal mi 5nm off shore to the us/canadian border including isle
royale national park-
1001 am edt tue oct 13 2026

.rest of today...north winds 5 to 15 knots backing west late.
waves 3 to 6 feet occasionally to 8 feet subsiding to 1 to
3 feet. 
.tonight...west winds 5 to 15 knots becoming northwest 10 to
20 knots after midnight. waves subsiding to calm to 2 feet, then
building to 1 to 3 feet. 
.wednesday...northwest winds 10 to 20 knots diminishing to 5 to
15 knots in the afternoon. waves subsiding to calm to 2 feet. 
.wednesday night...north winds 5 to 15 knots veering southeast
after midnight. waves calm to 2 feet. 
.thursday...south winds 10 to 20 knots becoming southwest 15 to
25 knots by mid afternoon. a slight chance of showers by mid
afternoon. waves calm to 2 feet. 
.thursday night...west winds 20 to 30 knots becoming northwest
gales to 45 knots after midnight. a chance of showers. waves
building to 10 to 14 feet occasionally to 18 feet. 
.friday...northwest gales to 45 knots diminishing to 20 to
30 knots. waves building to 11 to 15 feet occasionally to
19 feet, then subsiding to 1 to 3 feet. 
.saturday...southwest winds 20 to 30 knots increasing to gales to
40 knots. waves building to 7 to 10 feet occasionally to 13 feet.

$$

fzus63 kmqt 131401
glfls 
expires:202610132000;;027345

open lake forecast for lake superior
national weather service marquette mi
1001 am edt tue oct 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...

lake superior remains situated between a 29.6 inch low over 
wisconsin and a 30.2 inch high over quebec. ridging dominates over 
lake superior midweek as the low marches east and high pressure of 
30.2 inches builds over the dakotas by wednesday afternoon. the high 
further builds to 30.3 inches over lake superior wednesday night 
while a 29.9 inch low develops over saskatchewan. by thursday 
evening, this low weakens to 29.9 inches over northern ontario as 
the high moves to new england, then the low rapidly deepens into 
friday while tracking towards new england. meanwhile, 30.6 inch high 
pressure expands across the plains for friday. pressure increases 
rapidly over the upper great lakes friday afternoon into saturday, 
reaching 30.4 inches by saturday morning, then decreasing to 30.0 
inches by saturday night as the high collapses southeast.




lsz264-132000-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
1001 am edt tue oct 13 2026

.rest of today...northeast winds 5 to 15 knots backing northwest
late. waves 3 to 6 feet occasionally to 8 feet subsiding to 1 to
3 feet. 
.tonight...northwest winds 5 to 15 knots increasing to 10 to
20 knots after midnight. waves subsiding to calm to 2 feet, then
building to 2 to 4 feet. 
.wednesday...northwest winds 10 to 20 knots diminishing to 5 to
15 knots late. waves subsiding to calm to 2 feet. 
.wednesday night...north winds 5 to 15 knots veering southeast
after midnight. waves calm to 2 feet. 
.thursday...south winds 5 to 15 knots veering southwest by mid
afternoon. a slight chance of showers by mid afternoon. waves
calm to 2 feet. 
.thursday night...west winds 20 to 30 knots becoming northwest
gales to 45 knots after midnight. showers likely through
midnight, then a chance of showers after midnight. waves building
to 10 to 14 feet occasionally to 18 feet. 
.friday...north storm force winds to 60 knots becoming northwest
gales to 40 knots. waves building to 12 to 17 feet occasionally
to 21 feet, then subsiding to 1 to 3 feet. 
.saturday...west winds 15 to 25 knots becoming southwest gales to
35 knots. waves building to 6 to 9 feet occasionally to 11 feet. 

$$

fzus63 kmqt 131401
glfls 
expires:202610132000;;027346

open lake forecast for lake superior
national weather service marquette mi
1001 am edt tue oct 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...

lake superior remains situated between a 29.6 inch low over 
wisconsin and a 30.2 inch high over quebec. ridging dominates over 
lake superior midweek as the low marches east and high pressure of 
30.2 inches builds over the dakotas by wednesday afternoon. the high 
further builds to 30.3 inches over lake superior wednesday night 
while a 29.9 inch low develops over saskatchewan. by thursday 
evening, this low weakens to 29.9 inches over northern ontario as 
the high moves to new england, then the low rapidly deepens into 
friday while tracking towards new england. meanwhile, 30.6 inch high 
pressure expands across the plains for friday. pressure increases 
rapidly over the upper great lakes friday afternoon into saturday, 
reaching 30.4 inches by saturday morning, then decreasing to 30.0 
inches by saturday night as the high collapses southeast.




lsz265-132000-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
1001 am edt tue oct 13 2026

.rest of today...northeast winds 15 to 25 knots becoming north
10 to 20 knots in the afternoon, then backing northwest late.
waves 3 to 6 feet occasionally to 8 feet subsiding to 2 to
4 feet. 
.tonight...northwest winds 10 to 20 knots increasing to 20 to
30 knots. waves subsiding to 1 to 3 feet, then building to 2 to
4 feet. 
.wednesday...northwest winds 20 to 30 knots diminishing to 10 to
20 knots. waves subsiding to 1 to 3 feet. 
.wednesday night...north winds 5 to 15 knots veering southeast
after midnight. waves subsiding to calm to 2 feet. 
.thursday...south winds 10 to 20 knots. a slight chance of
showers by mid afternoon. waves calm to 2 feet. 
.thursday night...west gales to 35 knots becoming northwest storm
force winds to 55 knots after midnight. showers. waves building
to 10 to 14 feet occasionally to 18 feet. 
.friday...northwest storm force winds to 60 knots diminishing to
gales to 45 knots. a chance of rain showers. waves building to
15 to 20 feet occasionally to 25 feet, then subsiding to 2 to
4 feet. 
.saturday...west winds 10 to 20 knots becoming southwest gales to
35 knots. waves subsiding to calm to 2 feet, then building to
3 to 5 feet occasionally to 7 feet. 

$$

fzus63 kmqt 131401
glfls 
expires:202610132000;;027347

open lake forecast for lake superior
national weather service marquette mi
1001 am edt tue oct 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...

lake superior remains situated between a 29.6 inch low over 
wisconsin and a 30.2 inch high over quebec. ridging dominates over 
lake superior midweek as the low marches east and high pressure of 
30.2 inches builds over the dakotas by wednesday afternoon. the high 
further builds to 30.3 inches over lake superior wednesday night 
while a 29.9 inch low develops over saskatchewan. by thursday 
evening, this low weakens to 29.9 inches over northern ontario as 
the high moves to new england, then the low rapidly deepens into 
friday while tracking towards new england. meanwhile, 30.6 inch high 
pressure expands across the plains for friday. pressure increases 
rapidly over the upper great lakes friday afternoon into saturday, 
reaching 30.4 inches by saturday morning, then decreasing to 30.0 
inches by saturday night as the high collapses southeast.




lsz266-132000-
lake superior east of a line from manitou island to marquette mi
and west of a line from grand marais mi to the us/canadian border
beyond 5nm from shore-
1001 am edt tue oct 13 2026

.rest of today...northeast winds 15 to 25 knots becoming north
10 to 20 knots in the afternoon, then backing northwest late. a
slight chance of showers by late morning. waves 3 to 6 feet
occasionally to 8 feet subsiding to 2 to 4 feet. 
.tonight...northwest winds 10 to 20 knots increasing to 20 to
30 knots. waves subsiding to 1 to 3 feet, then building to 2 to
4 feet. 
.wednesday...northwest winds 20 to 30 knots diminishing to 10 to
20 knots. waves building to 3 to 5 feet occasionally to 7 feet,
then subsiding to 2 to 4 feet. 
.wednesday night...north winds 5 to 15 knots veering east after
midnight. waves subsiding to calm to 2 feet. 
.thursday...south winds 10 to 20 knots. a slight chance of
showers by mid afternoon. waves calm to 2 feet. 
.thursday night...southwest gales to 35 knots becoming northwest
storm force winds to 55 knots after midnight. showers. waves
building to 11 to 15 feet occasionally to 19 feet. 
.friday...north storm force winds to 60 knots becoming northwest
gales to 45 knots. a chance of rain showers. waves building to
20 to 25 feet occasionally to 31 feet, then subsiding to 4 to
7 feet occasionally to 9 feet. 
.saturday...west winds 10 to 20 knots becoming southwest 20 to
30 knots. waves subsiding to 1 to 3 feet, then building to 4 to
7 feet occasionally to 9 feet. 

$$

fzus63 kmqt 131401
glfls 
expires:202610132000;;027348

open lake forecast for lake superior
national weather service marquette mi
1001 am edt tue oct 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...

lake superior remains situated between a 29.6 inch low over 
wisconsin and a 30.2 inch high over quebec. ridging dominates over 
lake superior midweek as the low marches east and high pressure of 
30.2 inches builds over the dakotas by wednesday afternoon. the high 
further builds to 30.3 inches over lake superior wednesday night 
while a 29.9 inch low develops over saskatchewan. by thursday 
evening, this low weakens to 29.9 inches over northern ontario as 
the high moves to new england, then the low rapidly deepens into 
friday while tracking towards new england. meanwhile, 30.6 inch high 
pressure expands across the plains for friday. pressure increases 
rapidly over the upper great lakes friday afternoon into saturday, 
reaching 30.4 inches by saturday morning, then decreasing to 30.0 
inches by saturday night as the high collapses southeast.




lsz267-132000-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
1001 am edt tue oct 13 2026

.rest of today...northeast winds 10 to 20 knots diminishing to
5 to 15 knots in the afternoon, then becoming northwest 10 to
20 knots late. a slight chance of showers by late morning. waves
2 to 4 feet subsiding to calm to 2 feet. 
.tonight...northwest winds 15 to 25 knots. waves building to 3 to
5 feet occasionally to 7 feet. 
.wednesday...northwest winds 15 to 25 knots. waves 3 to 5 feet
occasionally to 7 feet. 
.wednesday night...north winds 10 to 20 knots veering east after
midnight. waves subsiding to calm to 2 feet. 
.thursday...southeast winds 10 to 20 knots veering south by mid
afternoon. a slight chance of showers by mid afternoon. waves
calm to 2 feet. 
.thursday night...south winds 10 to 20 knots becoming northwest
gales to 40 knots after midnight. showers. waves building to
10 to 14 feet occasionally to 18 feet. 
.friday...north storm force winds to 55 knots diminishing to
gales to 45 knots. rain showers likely. waves building to 17 to
22 feet occasionally to 28 feet, then subsiding to 5 to 8 feet
occasionally to 10 feet. 
.saturday...west winds 10 to 20 knots becoming southwest 20 to
30 knots. waves subsiding to 1 to 3 feet, then building to 4 to
7 feet occasionally to 9 feet. 

$$