fzus61 kbuf 080203
glflo 
expires:202610080900;;710240

open lake forecast for lake ontario
national weather service buffalo ny
1002 pm edt wed oct 7 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 eastward across the lake this 
evening through early thursday morning. behind the front, a weak 
trough averaging 29.7 inches should linger over the lake through 
thursday. during thursday night through friday, a ridge averaging 
30.1 inches should affect the lake as the parent high pressure 
center moves from the western great lakes toward the central 
appalachians. a warm front should sweep northward across the lake 
friday night as the ridge begins to exit eastward. on saturday 
through monday, a weak trough averaging 29.9 inches should 
overspread the eastern great lakes generally from the south as 
isaias and its eventual remnant low approaches from the north-
central gulf coast and eventually the mid ohio valley and vicinity.


loz062-080900-
lake ontario open waters from the niagara river to hamlin beach-
1002 pm edt wed oct 7 2026

.rest of tonight...west winds 10 to 15 knots. showers likely with
a chance of thunderstorms late this evening, then a chance of
showers after midnight. waves 2 to 4 feet. 
.thursday...west winds 15 to 20 knots. a chance of waterspouts.
waves 2 to 4 feet building to 3 to 5 feet. 
.thursday night...west winds 15 to 20 knots. a chance of
waterspouts. waves 2 to 4 feet. 
.friday...west winds 15 to 20 knots diminishing to 10 to
15 knots. a chance of waterspouts. waves 2 to 4 feet subsiding to
1 to 3 feet. 
.friday night...west winds 5 to 10 knots becoming south. waves
2 feet or less. 
.saturday...south winds 5 to 15 knots. a chance of showers
saturday night. waves 2 feet or less. 
.sunday...south winds 5 to 10 knots. showers. waves 2 feet or
less. 
.monday...southwest winds 5 to 10 knots increasing to 15 to
20 knots. a chance of showers monday night. waves 2 feet or less.

winds and waves higher in and near thunderstorms.

$$

fzus61 kbuf 080203
glflo 
expires:202610080900;;710241

open lake forecast for lake ontario
national weather service buffalo ny
1002 pm edt wed oct 7 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 eastward across the lake this 
evening through early thursday morning. behind the front, a weak 
trough averaging 29.7 inches should linger over the lake through 
thursday. during thursday night through friday, a ridge averaging 
30.1 inches should affect the lake as the parent high pressure 
center moves from the western great lakes toward the central 
appalachians. a warm front should sweep northward across the lake 
friday night as the ridge begins to exit eastward. on saturday 
through monday, a weak trough averaging 29.9 inches should 
overspread the eastern great lakes generally from the south as 
isaias and its eventual remnant low approaches from the north-
central gulf coast and eventually the mid ohio valley and vicinity.


loz063>065-080900-
lake ontario open waters from hamlin beach to the saint lawrence
river-
1002 pm edt wed oct 7 2026

.rest of tonight...southwest winds 15 to 20 knots becoming west.
showers with a chance of thunderstorms late this evening, then
showers likely after midnight. a chance of showers late. waves
2 to 4 feet building to 3 to 5 feet, then subsiding to 2 to
4 feet. 
.thursday...west winds 15 to 20 knots. a chance of waterspouts. a
chance of showers. waves 3 to 6 feet. 
.thursday night...west winds 15 to 20 knots. a chance of
waterspouts. a chance of showers. waves 3 to 6 feet. 
.friday...west winds 15 to 20 knots. a chance of waterspouts. a
chance of showers. waves 3 to 5 feet subsiding to 2 to 4 feet. 
.friday night...west winds 5 to 15 knots becoming south. a chance
of waterspouts in the evening. waves 2 to 4 feet subsiding to
1 to 3 feet. 
.saturday...south winds 10 to 15 knots increasing to 15 to
20 knots. waves 1 to 3 feet. 
.sunday...south winds 15 to 20 knots diminishing to 10 to
15 knots. showers. waves 1 to 3 feet. 
.monday...southwest winds 5 to 15 knots becoming northwest 15 to
20 knots. a chance of showers monday night. waves 1 to 3 feet. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 080206
glfle 
expires:202610080815;;710447

open lake forecast for lake erie
national weather service cleveland oh
1006 pm edt wed oct 7 2026

for waters beyond five nautical miles of shore on lake erie

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

.synopsis...
a cold front will move southeast across the lake tonight. high 
pressure 30.30 inches builds in from the west on thursday and 
persists through early saturday. a remnant tropical low pressure 
system 29.90 inches will track across the area from the south 
early sunday through monday.


lez061-167>169-080815-
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-
1006 pm edt wed oct 7 2026

.rest of tonight...west winds 15 to 20 knots. a slight chance of
showers late this evening. waves 3 to 5 feet. 
.thursday...northwest winds 15 to 20 knots becoming west. waves
3 to 5 feet. 
.thursday night...west winds 15 to 20 knots becoming northwest
10 to 15 knots. waves 2 to 4 feet subsiding to 1 to 3 feet. 
.friday...northwest winds 5 to 10 knots becoming west. waves 1 to
2 feet. 
.friday night...southwest winds 5 to 15 knots becoming south.
waves 2 feet or less. 
.saturday...south winds 5 to 15 knots increasing to 15 to
20 knots. showers saturday night. waves 1 to 3 feet. 
.sunday...south winds 5 to 15 knots. showers during the day.
waves 1 to 3 feet. 
.monday...west winds 5 to 15 knots increasing to 15 to 25 knots.
a chance of showers monday night. waves 1 to 3 feet building to
2 to 4 feet. 

$$

fzus61 kcle 080206
glfle 
expires:202610080815;;710446

open lake forecast for lake erie
national weather service cleveland oh
1006 pm edt wed oct 7 2026

for waters beyond five nautical miles of shore on lake erie

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

.synopsis...
a cold front will move southeast across the lake tonight. high 
pressure 30.30 inches builds in from the west on thursday and 
persists through early saturday. a remnant tropical low pressure 
system 29.90 inches will track across the area from the south 
early sunday through monday.


lez164>166-080815-
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-
1006 pm edt wed oct 7 2026

.rest of tonight...northwest winds 15 to 20 knots. waves 3 to
5 feet subsiding to 2 to 4 feet. 
.thursday...northwest winds 15 to 20 knots becoming west. waves
3 to 5 feet subsiding to 2 to 4 feet. 
.thursday night...west winds 15 to 20 knots becoming northwest
10 to 15 knots. waves 2 to 4 feet subsiding to 1 to 3 feet. 
.friday...northwest winds 5 to 10 knots becoming southwest. waves
2 feet or less. 
.friday night...southeast winds 5 to 15 knots becoming south.
waves 2 feet or less. 
.saturday...south winds 10 to 15 knots. showers saturday night.
waves 1 to 3 feet. 
.sunday...southeast winds 10 to 15 knots becoming southwest.
showers during the day. waves 1 to 3 feet. 
.monday...west winds 5 to 15 knots increasing to 15 to 25 knots.
a chance of showers monday night. waves 1 to 2 feet building to
2 to 4 feet. 

$$

fzus61 kcle 080206
glfle 
expires:202610080815;;710445

open lake forecast for lake erie
national weather service cleveland oh
1006 pm edt wed oct 7 2026

for waters beyond five nautical miles of shore on lake erie

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

.synopsis...
a cold front will move southeast across the lake tonight. high 
pressure 30.30 inches builds in from the west on thursday and 
persists through early saturday. a remnant tropical low pressure 
system 29.90 inches will track across the area from the south 
early sunday through monday.


lez162-163-080815-
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-
1006 pm edt wed oct 7 2026

.rest of tonight...northwest winds 15 to 20 knots. waves 1 to
3 feet. 
.thursday...northwest winds 10 to 15 knots becoming west. waves
1 to 3 feet. 
.thursday night...west winds 5 to 15 knots. waves 2 feet or less.
.friday...west winds 10 knots or less becoming southeast. waves
1 foot or less. 
.friday night...southeast winds 5 to 15 knots becoming south.
waves 2 feet or less. 
.saturday...south winds 10 to 15 knots. showers likely saturday
night. waves 2 feet or less. 
.sunday...southeast winds 5 to 15 knots becoming southwest.
showers during the day. waves 2 feet or less. 
.monday...west winds 5 to 15 knots increasing to 15 to 20 knots.
a chance of showers monday night. waves 1 foot or less building
to 1 to 3 feet. 

$$

fzus63 kdtx 080054
glfsc 
expires:202610080900;;708299

lake st clair forecast
national weather service detroit/pontiac mi
854 pm edt wed oct 7 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 cold front is tracking through the central great
lakes triggering scattered gusty showers over lake huron this 
evening, including a few rumbles of thunder. southwest winds 
weaken and shift west-northwesterly behind the front. persistent 
influence from james bay low pressure maintains modest 
northwesterly winds through thursday. high pressure builds in
from the west friday.


lcz460-080900-
lake st clair-
854 pm edt wed oct 7 2026

.rest of tonight...west winds 15 to 20 knots diminishing to 10 to 15
knots after midnight. clear. waves 1 to 3 feet.
.thursday...west winds 10 to 15 knots. sunny. waves 2 feet or less.
.thursday night...west winds 10 to 15 knots diminishing to 5 to 10
knots after midnight. clear. waves 2 feet or less.
.friday...west winds 5 to 10 knots backing to the south early in the
afternoon. mostly sunny. waves 2 feet or less.
.friday night...south winds 5 to 10 knots increasing to 10 to 15
knots in the late evening and overnight. mostly clear. waves 2 feet
or less.
.saturday...south winds 10 to 15 knots. mostly sunny becoming partly
cloudy. waves 2 feet or less.
.sunday...southeast winds 10 to 15 knots. mostly cloudy with a
chance of light rain. waves 2 feet or less.
.monday...west winds 10 to 15 knots. partly cloudy. a chance of
light rain. waves 2 feet or less.

$$

fzus63 kdtx 080054
glflh 
expires:202610080900;;708294

open lake forecast for lake huron
national weather service detroit/pontiac mi
854 pm edt wed oct 7 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 cold front is tracking through the central great
lakes triggering scattered gusty showers over lake huron this 
evening, including a few rumbles of thunder. southwest winds 
weaken and shift west-northwesterly behind the front. persistent 
influence from james bay low pressure maintains modest 
northwesterly winds through thursday. high pressure builds in from
the west friday.


lhz361-362-080900-
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-
854 pm edt wed oct 7 2026

.rest of tonight...west winds 10 to 15 knots increasing to 15 to
20 knots after midnight. a chance of showers this evening. waves
3 to 5 feet. 
.thursday...west winds 15 to 20 knots. gusts to 30 knots in the
afternoon. waves 4 to 6 feet. 
.thursday night...west winds 15 to 20 knots with gusts to around
30 knots becoming northwest 10 to 15 knots in the late evening
and overnight. waves 4 to 6 feet. waves occasionally around
8 feet. 
.friday...west winds 10 to 15 knots becoming southwest 5 to
10 knots in the late morning and afternoon. waves 1 to 3 feet. 
.friday night...southwest winds 5 to 10 knots becoming south
10 to 15 knots in the late evening and overnight. waves 1 to
3 feet building to 2 to 4 feet after midnight. 
.saturday...south winds 15 to 20 knots. gusts to 30 knots. waves
4 to 6 feet. 
.sunday...south winds 10 to 15 knots decreasing to 5 to 10 knots
by midnight. waves 3 to 5 feet. waves occasionally around 8 feet.
.monday...southwest winds 5 to 10 knots becoming west 10 to
15 knots in the late morning and early afternoon...then becoming
north 15 to 20 knots with gusts to around 30 knots . a chance of
rain . waves 1 to 3 feet building to 4 to 6 feet . waves
occasionally around 8 feet. 


$$

fzus63 kdtx 080054
glflh 
expires:202610080900;;708295

open lake forecast for lake huron
national weather service detroit/pontiac mi
854 pm edt wed oct 7 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 cold front is tracking through the central great
lakes triggering scattered gusty showers over lake huron this 
evening, including a few rumbles of thunder. southwest winds 
weaken and shift west-northwesterly behind the front. persistent 
influence from james bay low pressure maintains modest 
northwesterly winds through thursday. high pressure builds in from
the west friday.


lhz363-080900-
lake huron from sturgeon point to alabaster mi beyond 5nm off
shore-
854 pm edt wed oct 7 2026

.rest of tonight...northwest winds 10 to 15 knots becoming west
15 to 20 knots early in the morning. a chance of showers this
evening. waves 2 to 4 feet building to 3 to 5 feet after
midnight. 
.thursday...west winds 15 to 20 knots. waves 3 to 5 feet. 
.thursday night...west winds 15 to 20 knots becoming northwest
10 to 15 knots in the late evening and overnight. waves 3 to
5 feet. 
.friday...west winds 10 to 15 knots becoming southwest 5 to
10 knots in the late morning and afternoon. waves 1 to 3 feet. 
.friday night...south winds 10 to 15 knots increasing to 15 to
20 knots after midnight. waves 1 to 3 feet building to 2 to
4 feet after midnight. 
.saturday...south winds 15 to 20 knots. waves 4 to 6 feet. waves
occasionally around 8 feet. 
.sunday...south winds 10 to 15 knots decreasing to 5 to 10 knots
by midnight. waves 2 to 4 feet subsiding to 1 to 3 feet . 
.monday...southwest winds 5 to 10 knots becoming west 10 to
15 knots in the late morning and early afternoon...then becoming
southeast 15 to 20 knots early in the evening backing to the
north by midnight. rain likely by midnight. waves 1 to 3 feet
building to 4 to 6 feet . waves occasionally around 8 feet. 


$$

fzus63 kdtx 080054
glflh 
expires:202610080900;;708296

open lake forecast for lake huron
national weather service detroit/pontiac mi
854 pm edt wed oct 7 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 cold front is tracking through the central great
lakes triggering scattered gusty showers over lake huron this 
evening, including a few rumbles of thunder. southwest winds 
weaken and shift west-northwesterly behind the front. persistent 
influence from james bay low pressure maintains modest 
northwesterly winds through thursday. high pressure builds in from
the west friday.


lhz462>464-080900-
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-
854 pm edt wed oct 7 2026

.rest of tonight...northwest winds 10 to 15 knots becoming west
15 to 20 knots early in the morning. a chance of showers this
evening. waves 1 to 3 feet building to 2 to 4 feet after
midnight. 
.thursday...west winds 15 to 20 knots. waves 3 to 5 feet. 
.thursday night...west winds 15 to 20 knots decreasing to 10 to
15 knots in the late evening and overnight. waves 3 to 5 feet. 
.friday...west winds 10 to 15 knots becoming southwest 5 to
10 knots in the late morning and afternoon. waves 1 to 3 feet. 
.friday night...south winds 5 to 10 knots increasing to 15 to
20 knots. waves 1 to 3 feet building to 2 to 4 feet after
midnight. 
.saturday...south winds 15 to 20 knots. waves 3 to 5 feet. 
.sunday...south winds 10 to 15 knots decreasing to 5 to 10 knots
by midnight. waves 2 to 4 feet subsiding to 1 to 3 feet. 
.monday...southwest winds 5 to 10 knots veering to the west in
the late morning and early afternoon...then becoming northwest
10 to 15 knots early in the evening increasing to 15 to 20 knots
by midnight. rain likely by midnight. waves 2 feet or less
building to 5 to 7 feet. waves occasionally around 10 feet. 


$$

fzus63 kmkx 080151
glflm 
expires:202610080915;;710012

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
851 pm cdt wed oct 7 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 will persist through thursday, as high 
pressure around 30.1 inches pushes into the region. winds will 
become southerly on friday, as the high departs and low pressure 
around 29.2 inches develops in the northern plains. the tight 
pressure gradient over lake michigan will produce breezy southerly
winds up to 30 knots from friday night through sunday morning. a 
few gale force gusts may occur in the northern half of the lake 
saturday afternoon and evening.


lmz080-669-671-673-675-777-779-870-872-874-876-878-080915-
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-
851 pm cdt wed oct 7 2026

sheboygan wi to pentwater mi south...

.rest of tonight...west winds 15 to 25 kt becoming northwest
10 to 20 kt. waves 2 to 4 ft building to 3 to 5 ft. 
.thursday...northwest winds 15 to 25 kt diminishing to 10 to
20 kt. waves 4 to 6 ft occasionally to 8 ft subsiding to 3 to
5 ft. 
.thursday night...west winds 10 to 20 kt diminishing to 5 to
10 kt. waves 2 to 4 ft subsiding to 1 to 3 ft. 
.friday...south winds 10 to 20 kt increasing to 15 to 25 kt.
waves 1 to 3 ft building to 4 to 6 ft occasionally to 8 ft. 
.friday night...southeast winds 15 to 25 kt becoming south. waves
4 to 7 ft occasionally to 9 ft. 
.saturday...south winds to 30 kt. waves 6 to 9 ft occasionally to
12 ft. 
.saturday night...south winds to 30 kt diminishing to 15 to
25 kt. waves 6 to 9 ft occasionally to 12 ft subsiding to 4 to
6 ft occasionally to 8 ft. 
.sunday...south winds 10 to 20 kt. waves 3 to 5 ft. 
.monday...west winds 10 to 20 kt becoming southwest. waves 2 to
4 ft.  

$$

fzus63 kmkx 080151
glflm 
expires:202610080915;;710011

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
851 pm cdt wed oct 7 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 will persist through thursday, as high 
pressure around 30.1 inches pushes into the region. winds will 
become southerly on friday, as the high departs and low pressure 
around 29.2 inches develops in the northern plains. the tight 
pressure gradient over lake michigan will produce breezy southerly
winds up to 30 knots from friday night through sunday morning. a 
few gale force gusts may occur in the northern half of the lake 
saturday afternoon and evening.


lmz261-362-364-366-563-565-567-868-080915-
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-
851 pm cdt wed oct 7 2026

sheboygan wi to pentwater mi north...

.rest of tonight...northwest winds 15 to 25 kt diminishing to
10 to 20 kt. waves 2 to 4 ft. 
.thursday...northwest winds 15 to 25 kt. waves 3 to 5 ft. 
.thursday night...northwest winds 15 to 25 kt becoming west 5 to
10 kt. waves 2 to 4 ft subsiding to 1 to 2 ft. 
.friday...southwest winds 10 to 15 kt becoming south 15 to 25 kt
in the afternoon. waves 1 to 2 ft building to 4 to 6 ft
occasionally to 8 ft. 
.friday night...south winds 15 to 25 kt. waves 4 to 7 ft
occasionally to 9 ft. 
.saturday...south winds to 30 kt increasing to gales to 40 kt in
the afternoon. waves 6 to 9 ft occasionally to 12 ft. 
.saturday night...south gales to 35 kt. waves 6 to 9 ft
occasionally to 12 ft. 
.sunday...south winds to 30 kt. waves 4 to 7 ft occasionally to
9 ft. 
.monday...west winds 15 to 25 kt becoming northwest to 30 kt.
waves 2 to 4 ft.  

$$

fzus63 kmqt 080201
glfls 
expires:202610080800;;710199

open lake forecast for lake superior
national weather service marquette mi
1000 pm edt wed oct 7 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 is currently between 29.4 inch low pressure over 
northwest quebec and 30.1 inch high pressure over northwest north 
dakota. little motion is expected with the low pressure by midday 
thursday as the high pressure elongates southeast to illinois. by 
thursday night, the low will weaken to 29.6 inches over much of 
quebec as the 30.1 inch high shifts to the virginias. friday, the 
high will build to 30.2 inches just south of the lower great lakes, 
with the ridging north of the high separating a pair of 29.4 inch 
lows over southern alberta and labrador respectively. late friday 
through saturday, the western low will move to the dakotas as the 
high builds to 30.4 inches over new england. eventual hurricane 
isaias will move up the mississippi river valley at 29.8 inches by 
early sunday, helping kick the high pressure off the east coast as 
the western low weakens to 29.6 inches over the northern plains. 
sunday night, the low will fragment into a pair of 29.7 inch lows 
over the central plains and over quebec respectively, with the 
weaker troughing between the lows passing over the lake through 
monday. tuesday, the southern low moves through the great lakes at 
29.6 inches.




lsz267-080800-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
1000 pm edt wed oct 7 2026

.rest of tonight...northwest winds 20 to 30 knots. a slight
chance of showers. waves 3 to 6 feet occasionally to 8 feet. 
.thursday...northwest winds 20 to 30 knots increasing to 30 knots
with a few gale force gusts to 35 knots possible in the
afternoon. a slight chance of showers. waves building to 6 to
10 feet occasionally to 13 feet. 
.thursday night...northwest winds 15 to 25 knots diminishing to
10 to 20 knots after midnight. a slight chance of showers through
midnight. waves subsiding to 1 to 3 feet. 
.friday...west winds 10 to 20 knots becoming south 5 to 15 knots
by mid afternoon. waves subsiding to calm to 2 feet. 
.friday night...south winds 10 to 20 knots becoming southeast
20 to 30 knots after midnight. waves building to 2 to 4 feet. 
.saturday...southeast winds 20 to 30 knots veering south by mid
afternoon. waves building to 4 to 7 feet occasionally to 9 feet. 
.saturday night...south gales to 35 knots diminishing to 20 to
30 knots after midnight. waves subsiding to 3 to 6 feet
occasionally to 8 feet. 
.sunday...south winds 15 to 25 knots veering southwest. a chance
of showers. waves subsiding to 2 to 4 feet, then building to 3 to
6 feet occasionally to 8 feet. 
.monday...north winds 20 to 30 knots. a chance of showers. waves
building to 4 to 7 feet occasionally to 9 feet, then subsiding to
3 to 6 feet occasionally to 8 feet. 

$$

fzus63 kmqt 080201
glfls 
expires:202610080800;;710196

open lake forecast for lake superior
national weather service marquette mi
1000 pm edt wed oct 7 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 is currently between 29.4 inch low pressure over 
northwest quebec and 30.1 inch high pressure over northwest north 
dakota. little motion is expected with the low pressure by midday 
thursday as the high pressure elongates southeast to illinois. by 
thursday night, the low will weaken to 29.6 inches over much of 
quebec as the 30.1 inch high shifts to the virginias. friday, the 
high will build to 30.2 inches just south of the lower great lakes, 
with the ridging north of the high separating a pair of 29.4 inch 
lows over southern alberta and labrador respectively. late friday 
through saturday, the western low will move to the dakotas as the 
high builds to 30.4 inches over new england. eventual hurricane 
isaias will move up the mississippi river valley at 29.8 inches by 
early sunday, helping kick the high pressure off the east coast as 
the western low weakens to 29.6 inches over the northern plains. 
sunday night, the low will fragment into a pair of 29.7 inch lows 
over the central plains and over quebec respectively, with the 
weaker troughing between the lows passing over the lake through 
monday. tuesday, the southern low moves through the great lakes at 
29.6 inches.




lsz264-080800-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
1000 pm edt wed oct 7 2026

.rest of tonight...northwest winds 15 to 25 knots. a slight
chance of showers after midnight. waves 2 to 4 feet building to
3 to 5 feet occasionally to 7 feet. 
.thursday...northwest winds 20 to 30 knots diminishing to 15 to
25 knots late. waves building to 4 to 7 feet occasionally to
9 feet, then subsiding to 2 to 4 feet. 
.thursday night...northwest winds 10 to 20 knots diminishing to
5 to 15 knots after midnight, then backing west late. waves
subsiding to calm to 2 feet. 
.friday...southwest winds 5 to 15 knots backing southeast by mid
afternoon. waves calm to 2 feet. 
.friday night...southeast winds 15 to 25 knots increasing to
20 to 30 knots after midnight. waves building to 2 to 4 feet. 
.saturday...southeast winds 15 to 25 knots becoming south 20 to
30 knots by mid afternoon. waves building to 3 to 6 feet
occasionally to 8 feet. 
.saturday night...south gales to 40 knots becoming southwest
gales to 35 knots after midnight. waves building to 4 to 7 feet
occasionally to 9 feet. 
.sunday...southwest winds 15 to 25 knots veering north. a chance
of showers. waves subsiding to 2 to 4 feet, then building to 3 to
5 feet occasionally to 7 feet. 
.monday...north winds 20 to 30 knots. a chance of rain showers.
waves building to 3 to 6 feet occasionally to 8 feet. 

$$

fzus63 kmqt 080201
glfls 
expires:202610080800;;710197

open lake forecast for lake superior
national weather service marquette mi
1000 pm edt wed oct 7 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 is currently between 29.4 inch low pressure over 
northwest quebec and 30.1 inch high pressure over northwest north 
dakota. little motion is expected with the low pressure by midday 
thursday as the high pressure elongates southeast to illinois. by 
thursday night, the low will weaken to 29.6 inches over much of 
quebec as the 30.1 inch high shifts to the virginias. friday, the 
high will build to 30.2 inches just south of the lower great lakes, 
with the ridging north of the high separating a pair of 29.4 inch 
lows over southern alberta and labrador respectively. late friday 
through saturday, the western low will move to the dakotas as the 
high builds to 30.4 inches over new england. eventual hurricane 
isaias will move up the mississippi river valley at 29.8 inches by 
early sunday, helping kick the high pressure off the east coast as 
the western low weakens to 29.6 inches over the northern plains. 
sunday night, the low will fragment into a pair of 29.7 inch lows 
over the central plains and over quebec respectively, with the 
weaker troughing between the lows passing over the lake through 
monday. tuesday, the southern low moves through the great lakes at 
29.6 inches.




lsz265-080800-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
1000 pm edt wed oct 7 2026

.rest of tonight...northwest winds 20 to 30 knots increasing to
30 knots with a few gale force gusts to 35 knots possible late. a
slight chance of showers. waves 2 to 4 feet building to 3 to
5 feet occasionally to 7 feet. 
.thursday...northwest winds to 30 knots with a few gale force
gusts to 35 knots possible diminishing to 20 to 30 knots late.
waves building to 5 to 8 feet occasionally to 10 feet, then
subsiding to 3 to 5 feet occasionally to 7 feet. 
.thursday night...west winds 15 to 25 knots diminishing to 10 to
20 knots after midnight. waves subsiding to calm to 2 feet. 
.friday...southwest winds 10 to 20 knots backing southeast by mid
afternoon. waves calm to 2 feet. 
.friday night...southeast winds 20 to 30 knots. waves building to
2 to 4 feet. 
.saturday...southeast winds 20 to 30 knots becoming south gales
to 35 knots by mid afternoon. waves building to 3 to 5 feet
occasionally to 7 feet. 
.saturday night...south gales to 40 knots veering southwest after
midnight. waves building to 4 to 7 feet occasionally to 9 feet,
then subsiding to 3 to 6 feet occasionally to 8 feet. 
.sunday...southwest winds 20 to 30 knots veering northwest. a
chance of showers. waves subsiding to 1 to 3 feet, then building
to 3 to 5 feet occasionally to 7 feet. 
.monday...north gales to 35 knots. showers likely. waves building
to 4 to 8 feet occasionally to 10 feet. 

$$

fzus63 kmqt 080201
glfls 
expires:202610080800;;710194

open lake forecast for lake superior
national weather service marquette mi
1000 pm edt wed oct 7 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 is currently between 29.4 inch low pressure over 
northwest quebec and 30.1 inch high pressure over northwest north 
dakota. little motion is expected with the low pressure by midday 
thursday as the high pressure elongates southeast to illinois. by 
thursday night, the low will weaken to 29.6 inches over much of 
quebec as the 30.1 inch high shifts to the virginias. friday, the 
high will build to 30.2 inches just south of the lower great lakes, 
with the ridging north of the high separating a pair of 29.4 inch 
lows over southern alberta and labrador respectively. late friday 
through saturday, the western low will move to the dakotas as the 
high builds to 30.4 inches over new england. eventual hurricane 
isaias will move up the mississippi river valley at 29.8 inches by 
early sunday, helping kick the high pressure off the east coast as 
the western low weakens to 29.6 inches over the northern plains. 
sunday night, the low will fragment into a pair of 29.7 inch lows 
over the central plains and over quebec respectively, with the 
weaker troughing between the lows passing over the lake through 
monday. tuesday, the southern low moves through the great lakes at 
29.6 inches.




lsz162-080800-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
1000 pm edt wed oct 7 2026 /900 pm cdt wed oct 7 2026/

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

$$

fzus63 kmqt 080201
glfls 
expires:202610080800;;710195

open lake forecast for lake superior
national weather service marquette mi
1000 pm edt wed oct 7 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 is currently between 29.4 inch low pressure over 
northwest quebec and 30.1 inch high pressure over northwest north 
dakota. little motion is expected with the low pressure by midday 
thursday as the high pressure elongates southeast to illinois. by 
thursday night, the low will weaken to 29.6 inches over much of 
quebec as the 30.1 inch high shifts to the virginias. friday, the 
high will build to 30.2 inches just south of the lower great lakes, 
with the ridging north of the high separating a pair of 29.4 inch 
lows over southern alberta and labrador respectively. late friday 
through saturday, the western low will move to the dakotas as the 
high builds to 30.4 inches over new england. eventual hurricane 
isaias will move up the mississippi river valley at 29.8 inches by 
early sunday, helping kick the high pressure off the east coast as 
the western low weakens to 29.6 inches over the northern plains. 
sunday night, the low will fragment into a pair of 29.7 inch lows 
over the central plains and over quebec respectively, with the 
weaker troughing between the lows passing over the lake through 
monday. tuesday, the southern low moves through the great lakes at 
29.6 inches.




lsz263-080800-
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-
1000 pm edt wed oct 7 2026

.rest of tonight...northwest winds 10 to 20 knots becoming west
15 to 25 knots late. waves 2 to 4 feet building to 3 to 5 feet
occasionally to 7 feet. 
.thursday...west winds 15 to 25 knots. waves building to 3 to
6 feet occasionally to 8 feet, then subsiding to 2 to 4 feet. 
.thursday night...west winds 10 to 20 knots diminishing to 5 to
15 knots after midnight. waves subsiding to calm to 2 feet. 
.friday...south winds 5 to 15 knots backing southeast by mid
afternoon. waves calm to 2 feet. 
.friday night...southeast winds 15 to 25 knots. waves building to
1 to 3 feet. 
.saturday...southeast winds 20 to 30 knots becoming south gales
to 35 knots by mid afternoon. waves building to 2 to 4 feet. 
.saturday night...south gales to 40 knots becoming southwest
gales to 35 knots after midnight. waves building to 4 to 8 feet
occasionally to 10 feet. 
.sunday...southwest winds 20 to 30 knots becoming north 15 to
25 knots. a chance of showers. waves subsiding to 2 to 4 feet,
then building to 3 to 5 feet occasionally to 7 feet. 
.monday...north winds 15 to 25 knots increasing to 20 to
30 knots. a chance of rain showers. waves building to 3 to 6 feet
occasionally to 8 feet. 

$$

fzus63 kmqt 080201
glfls 
expires:202610080800;;710198

open lake forecast for lake superior
national weather service marquette mi
1000 pm edt wed oct 7 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 is currently between 29.4 inch low pressure over 
northwest quebec and 30.1 inch high pressure over northwest north 
dakota. little motion is expected with the low pressure by midday 
thursday as the high pressure elongates southeast to illinois. by 
thursday night, the low will weaken to 29.6 inches over much of 
quebec as the 30.1 inch high shifts to the virginias. friday, the 
high will build to 30.2 inches just south of the lower great lakes, 
with the ridging north of the high separating a pair of 29.4 inch 
lows over southern alberta and labrador respectively. late friday 
through saturday, the western low will move to the dakotas as the 
high builds to 30.4 inches over new england. eventual hurricane 
isaias will move up the mississippi river valley at 29.8 inches by 
early sunday, helping kick the high pressure off the east coast as 
the western low weakens to 29.6 inches over the northern plains. 
sunday night, the low will fragment into a pair of 29.7 inch lows 
over the central plains and over quebec respectively, with the 
weaker troughing between the lows passing over the lake through 
monday. tuesday, the southern low moves through the great lakes at 
29.6 inches.




lsz266-080800-
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-
1000 pm edt wed oct 7 2026

.rest of tonight...northwest winds 20 to 30 knots. a slight
chance of showers. waves 3 to 6 feet occasionally to 8 feet. 
.thursday...northwest winds to 30 knots with a few gale force
gusts to 35 knots possible diminishing to 20 to 30 knots in the
afternoon. a slight chance of showers through early afternoon.
waves building to 5 to 9 feet occasionally to 11 feet. 
.thursday night...northwest winds 15 to 25 knots diminishing to
5 to 15 knots after midnight, then backing west late. waves
subsiding to calm to 2 feet. 
.friday...southwest winds 10 to 20 knots backing south by mid
afternoon. waves calm to 2 feet. 
.friday night...southeast winds 15 to 25 knots increasing to
20 to 30 knots after midnight. waves building to 2 to 4 feet. 
.saturday...southeast winds 20 to 30 knots veering south by mid
afternoon. waves building to 4 to 7 feet occasionally to 9 feet. 
.saturday night...south gales to 35 knots. waves building to 4 to
8 feet occasionally to 10 feet. 
.sunday...south winds 20 to 30 knots veering southwest. a chance
of showers. waves subsiding to 2 to 4 feet, then building to 3 to
6 feet occasionally to 8 feet. 
.monday...north gales to 35 knots. a chance of rain showers.
waves building to 4 to 8 feet occasionally to 10 feet. 

$$