fzus61 kbuf 312003
glflo 
expires:202611010300;;039951

open lake forecast for lake ontario
national weather service buffalo ny
402 pm edt sat oct 31 2026

for waters beyond five nautical miles of shore on lake ontario

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

.synopsis...a 30.5 inch high will settle over the northern mid 
atlantic states sunday through monday before drifting off the 
eastern seaboard tuesday. a 29.5 inch low is then forecast to move 
very slowly from the upper mississippi valley tuesday to the upper 
great lakes by wednesday, and then into western quebec by thursday 
and friday.


loz063>065-010300-
lake ontario open waters from hamlin beach to the saint lawrence
river-
402 pm edt sat oct 31 2026

.tonight...west winds 5 to 15 knots becoming southwest less than
10 knots. waves 2 feet or less. 
.sunday...southwest winds 5 to 10 knots becoming southeast. waves
1 foot or less. 
.sunday night...southeast winds 5 to 15 knots becoming southwest.
waves 2 feet or less. 
.monday...southwest winds 5 to 10 knots becoming south. waves
2 feet or less. 
.monday night...southeast winds 10 knots or less becoming south.
waves 1 foot or less. 
.tuesday...south winds 10 to 15 knots increasing to 15 to
20 knots. a chance of showers during the day. waves 1 to 3 feet. 
.wednesday...south winds 15 to 20 knots. a chance of showers.
waves 2 to 4 feet subsiding to 1 to 3 feet. 
.thursday...south winds 10 to 15 knots becoming southeast. a
chance of showers. waves 1 to 3 feet. 

$$

fzus61 kbuf 312003
glflo 
expires:202611010300;;039950

open lake forecast for lake ontario
national weather service buffalo ny
402 pm edt sat oct 31 2026

for waters beyond five nautical miles of shore on lake ontario

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

.synopsis...a 30.5 inch high will settle over the northern mid 
atlantic states sunday through monday before drifting off the 
eastern seaboard tuesday. a 29.5 inch low is then forecast to move 
very slowly from the upper mississippi valley tuesday to the upper 
great lakes by wednesday, and then into western quebec by thursday 
and friday.


loz062-010300-
lake ontario open waters from the niagara river to hamlin beach-
402 pm edt sat oct 31 2026

.tonight...west winds 5 to 15 knots becoming southwest less than
10 knots. waves 2 feet or less. 
.sunday...south winds less than 10 knots. waves 1 foot or less. 
.sunday night...light and variable winds becoming southwest 5 to
10 knots. waves 1 foot or less. 
.monday...southwest winds 5 to 10 knots becoming light and
variable. waves 1 foot or less. 
.monday night...south winds less than 10 knots. waves 1 foot or
less. 
.tuesday...south winds 5 to 15 knots. a chance of showers during
the day. waves 2 feet or less. 
.wednesday...south winds 10 to 15 knots. a chance of showers.
waves 1 to 2 feet. 
.thursday...south winds 5 to 15 knots becoming east. a chance of
showers. waves 1 to 2 feet. 

$$

fzus61 kcle 311942
glfle 
expires:202611010215;;039441

open lake forecast for lake erie
national weather service cleveland oh
342 pm edt sat oct 31 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 30.50 inches over southern new england will shift 
south along the east coast through monday. a weak cold front will 
drop across lake erie monday afternoon. high pressure 30.50 inches 
will return from the north on tuesday then depart to the east 
wednesday to allow a warm front to lift across the lake.



lez165>168-010215-
vermilion to avon point oh beyond 5 nm off shoreline to us-
canadian border-
avon point to willowick oh beyond 5 nm off shoreline to us-
canadian border-willowick to geneva-on-the-
lake oh beyond 5nm off shoreline to us-canadian border-geneva-on-
the-lake to conneaut oh beyond 5 nm off shoreline to us-
canadian border-
342 pm edt sat oct 31 2026

.tonight...east winds 5 to 10 knots becoming southeast. waves
2 feet or less. 
.sunday...southeast winds 10 knots or less becoming south. waves
2 feet or less. 
.sunday night...south winds 10 knots or less. waves 1 foot or
less. 
.monday...south winds 5 to 10 knots. waves 1 foot or less. 
.monday night...south winds 10 to 15 knots. waves 1 to 3 feet. 
.tuesday...south winds 15 to 20 knots. waves 1 to 3 feet building
to 3 to 5 feet. 
.wednesday...south winds 15 to 20 knots diminishing to 10 to
15 knots. showers likely. waves 3 to 5 feet subsiding to 1 to
3 feet. 
.thursday...south winds 5 to 15 knots becoming northeast. a
chance of showers. waves 1 to 3 feet. 

$$

fzus61 kcle 311942
glfle 
expires:202611010215;;039440

open lake forecast for lake erie
national weather service cleveland oh
342 pm edt sat oct 31 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 30.50 inches over southern new england will shift 
south along the east coast through monday. a weak cold front will 
drop across lake erie monday afternoon. high pressure 30.50 inches 
will return from the north on tuesday then depart to the east 
wednesday to allow a warm front to lift across the lake.



lez162>164-010215-
detroit river lt. to maumee bay oh to reno beach oh beyond 5nm
offshoreline to us-canadian border-
reno beach to the islands oh beyond 5nm off shoreline to us-
canadian border-
the islands to vermilion oh beyond 5 nm off shoreline to us-
canadian border-
342 pm edt sat oct 31 2026

.tonight...east winds around 10 knots becoming southeast. waves
2 feet or less. 
.sunday...southeast winds 10 knots or less. waves 1 foot or less.
.sunday night...southeast winds 10 knots or less becoming south.
waves 1 foot or less. 
.monday...south winds 5 to 10 knots. waves 1 foot or less. 
.monday night...south winds 10 to 15 knots. waves 2 feet or less.
.tuesday...south winds 10 to 15 knots increasing to 15 to
20 knots. a chance of showers tuesday night. waves 1 to 2 feet
building to 3 to 5 feet. 
.wednesday...south winds 15 to 20 knots diminishing to 10 to
15 knots. showers likely during the day, then a chance of showers
wednesday night. waves 2 to 4 feet subsiding to 1 to 3 feet. 
.thursday...southwest winds 10 to 15 knots becoming north. a
chance of showers. waves 2 feet or less. 

$$

fzus61 kcle 311942
glfle 
expires:202611010215;;039442

open lake forecast for lake erie
national weather service cleveland oh
342 pm edt sat oct 31 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 30.50 inches over southern new england will shift 
south along the east coast through monday. a weak cold front will 
drop across lake erie monday afternoon. high pressure 30.50 inches 
will return from the north on tuesday then depart to the east 
wednesday to allow a warm front to lift across the lake.



lez061-169-010215-
ripley to buffalo ny extending from 5nm off shoreline to us-
canadian border-
conneaut oh to ripley ny beyond 5 nm off shoreline to us-
canadian border-
342 pm edt sat oct 31 2026

.tonight...southeast winds 10 knots or less becoming south. waves
1 foot or less. 
.sunday...southeast winds 10 knots or less becoming southwest.
waves 1 foot or less. 
.sunday night...south winds 5 to 10 knots. waves 1 foot or less. 
.monday...south winds 10 knots or less becoming southwest. waves
1 foot or less. 
.monday night...south winds 5 to 10 knots. waves 2 feet or less. 
.tuesday...south winds 10 to 15 knots increasing to 15 to
20 knots. waves 1 to 3 feet building to 2 to 4 feet. 
.wednesday...south winds 15 to 20 knots. a chance of showers.
waves 2 to 4 feet subsiding to 1 to 3 feet. 
.thursday...south winds 5 to 15 knots becoming southeast. a
chance of showers. waves 1 to 2 feet. 

$$

fzus63 kdtx 311937
glflh 
expires:202611010345;;039343

open lake forecast for lake huron
national weather service detroit/pontiac mi
337 pm edt sat oct 31 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, 30.50 inches, centered over the eastern
great lakes today, will expand into the mid atlantic on sunday
while increasing to 30.60 inches. this high will influence the
region through the weekend, sustaining relatively light winds. a
slow moving deepening low pressure system will move from the
central plains monday to northern minnesota tuesday. this system
will drag a slow moving cold front into the great lakes region
tuesday night into wednesday as the low lifts into northern
ontario.


lhz462>464-010345-
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-
337 pm edt sat oct 31 2026

.tonight...south winds 5 to 10 knots increasing to 10 to 15 knots
in the late evening and overnight. waves 1 to 3 feet. 
.sunday...south winds 10 to 15 knots decreasing to 5 to 10 knots
in the afternoon. waves 1 to 3 feet. 
.sunday night...south winds 5 to 10 knots. waves 2 feet or less. 
.monday...south winds 5 to 10 knots increasing to 10 to 15 knots
early in the afternoon. waves 2 feet or less. 
.monday night...south winds 10 to 15 knots increasing to 15 to
20 knots after midnight. a chance of rain after midnight. waves
1 to 3 feet building to 2 to 4 feet after midnight. 
.tuesday...south winds 15 to 20 knots. a chance of rain. a chance
of rain late in the evening. waves 4 to 6 feet. waves
occasionally around 8 feet. 
.wednesday...south winds 15 to 20 knots decreasing to 10 to
15 knots by midnight. a chance of rain early in the morning...
then rain likely in the late morning and early afternoon. a
chance of rain . waves 3 to 5 feet. 
.thursday...south winds 10 to 15 knots backing to the north . a
chance of rain. waves 2 to 4 feet subsiding to 1 to 3 feet until
early evening...then building to 2 to 4 feet by midnight. 


$$

fzus63 kdtx 311937
glflh 
expires:202611010345;;039342

open lake forecast for lake huron
national weather service detroit/pontiac mi
337 pm edt sat oct 31 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, 30.50 inches, centered over the eastern
great lakes today, will expand into the mid atlantic on sunday
while increasing to 30.60 inches. this high will influence the
region through the weekend, sustaining relatively light winds. a
slow moving deepening low pressure system will move from the
central plains monday to northern minnesota tuesday. this system
will drag a slow moving cold front into the great lakes region
tuesday night into wednesday as the low lifts into northern
ontario.


lhz361>363-010345-
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-
lake huron from sturgeon point to alabaster mi beyond 5nm off
shore-
337 pm edt sat oct 31 2026

.tonight...southeast winds 10 to 15 knots becoming south. waves 1
to 3 feet. 
.sunday...south winds 10 to 15 knots decreasing to 5 to 10 knots
in the afternoon. a chance of rain in the morning. waves 1 to
3 feet. 
.sunday night...south winds 5 to 10 knots  becoming light and
variable. waves 2 feet or less. 
.monday...light and variable winds becoming south 5 to 10 knots
in the late morning and afternoon. waves 2 feet or less. 
.monday night...southeast winds 10 to 15 knots veering to the
south in the late evening and overnight. a chance of rain. waves
1 to 3 feet building to 2 to 4 feet in the late evening and
overnight. 
.tuesday...south winds 15 to 20 knots. gusts to 30 knots late in
the morning. rain likely in the morning...then a chance of rain.
waves 4 to 6 feet. 
.wednesday...south winds 15 to 20 knots decreasing to 10 to
15 knots by midnight. a chance of rain. waves 4 to 6 feet. 
.thursday...south winds 10 to 15 knots backing to the north. a
chance of rain. waves 2 to 4 feet. waves occasionally around
8 feet. 


$$

fzus63 kdtx 311937
glfsc 
expires:202611010345;;039345

lake st clair forecast
national weather service detroit/pontiac mi
337 pm edt sat oct 31 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, 30.50 inches, centered over the eastern
great lakes today, will expand into the mid atlantic on sunday
while increasing to 30.60 inches. this high will influence the
region through the weekend, sustaining relatively light winds. a
slow moving deepening low pressure system will move from the
central plains monday to northern minnesota tuesday. this system
will drag a slow moving cold front into the great lakes region
tuesday night into wednesday as the low lifts into northern
ontario.


lcz460-010345-
lake st clair-
337 pm edt sat oct 31 2026

.tonight...southeast winds 5 to 10 knots. mostly cloudy. waves 2
feet or less.
.sunday...south winds 5 to 10 knots until late afternoon becoming
light and variable. mostly cloudy. waves 2 feet or less.
.sunday night...light and variable winds. partly cloudy becoming
mostly cloudy by midnight becoming partly cloudy. waves 2 feet or
less.
.monday...south winds 5 to 10 knots. partly sunny. waves 2 feet or
less.
.monday night...south winds 10 to 15 knots. mostly cloudy. a chance
of light rain after midnight. waves 2 feet or less.
.tuesday...south winds 10 to 15 knots increasing to 20 to 25 knots.
mostly cloudy becoming partly sunny in the afternoon becoming mostly
cloudy. waves 1 to 3 feet.
.wednesday...south winds 20 to 25 knots. mostly cloudy. light rain
likely. waves 2 to 4 feet.
.thursday...north winds 10 to 15 knots. partly cloudy. a chance of
light rain. waves 2 feet or less.

$$

fzus63 kmkx 311915
glflm 
expires:202611010315;;038762

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
215 pm cdt sat oct 31 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...

30.5 inch high pressure is centered near lake erie this 
afternoon, resulting in generally east to southeast winds across 
the open waters of lake michigan. the high will drift southeast 
into the northeastern united states through sunday, allowing winds
to trend southerly across the lake. low pressure near 29.5 inches will
develop over eastern colorado sunday evening, progressing into 
the upper mississippi river valley into early tuesday morning. 
winds will steadily become gusty ahead of the approaching low, 
approaching or exceeding gale force over at least the central 
third of the lake tuesday afternoon and evening. anticipate that 
headlines will become necessary in later forecasts. 

winds will remain breezy, though likely below gale levels wednesday 
and wednesday night as 30.1 inch high pressure slowly builds into
the canadian great plains. said high will move into the western 
great lakes through the second half of next week, allowing for 
westerly and eventually north winds by next weekend. 


lmz261-362-364-366-563-565-567-868-010315-
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-
215 pm cdt sat oct 31 2026

sheboygan wi to pentwater mi north...

.tonight...south winds 10 to 20 kt diminishing to 10 to 15 kt.
slight chance of showers overnight. waves 3 to 5 ft subsiding to
2 to 4 ft. 
.sunday...south winds 10 to 15 kt increasing to 10 to 20 kt.
waves 1 to 3 ft. 
.sunday night...south winds 10 to 15 kt. waves 1 to 3 ft. 
.monday...south winds 10 to 20 kt increasing to 30 kt in the
afternoon. waves 3 to 5 ft building to 5 to 8 ft occasionally to
10 ft. 
.monday night...southeast winds to 30 kt becoming south. chance
of showers in the evening, then showers overnight. waves 7 to
10 ft occasionally to 13 ft building to 8 to 12 ft occasionally
to 16 ft. 
.tuesday...south gales to 40 kt. showers. waves 10 to 14 ft 
occasionally to 18 ft. 
.tuesday night...south gales to 35 kt diminishing to 30 kt.
showers likely. waves 8 to 12 ft occasionally to 16 ft subsiding
to 6 to 9 ft occasionally to 12 ft. 
.wednesday...south winds 15 to 25 kt increasing to 30 kt. chance
of showers. waves 5 to 8 ft occasionally to 10 ft. 
.thursday...west winds 10 to 20 kt becoming northwest. waves 2 to
4 ft.  

$$

fzus63 kmkx 311915
glflm 
expires:202611010315;;038763

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
215 pm cdt sat oct 31 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...

30.5 inch high pressure is centered near lake erie this 
afternoon, resulting in generally east to southeast winds across 
the open waters of lake michigan. the high will drift southeast 
into the northeastern united states through sunday, allowing winds
to trend southerly across the lake. low pressure near 29.5 inches will
develop over eastern colorado sunday evening, progressing into 
the upper mississippi river valley into early tuesday morning. 
winds will steadily become gusty ahead of the approaching low, 
approaching or exceeding gale force over at least the central 
third of the lake tuesday afternoon and evening. anticipate that 
headlines will become necessary in later forecasts. 

winds will remain breezy, though likely below gale levels wednesday 
and wednesday night as 30.1 inch high pressure slowly builds into
the canadian great plains. said high will move into the western 
great lakes through the second half of next week, allowing for 
westerly and eventually north winds by next weekend. 


lmz080-669-671-673-675-777-779-870-872-874-876-878-010315-
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-
215 pm cdt sat oct 31 2026

sheboygan wi to pentwater mi south...

.tonight...southeast winds 10 to 20 kt becoming south 10 to
15 kt. slight chance of showers. waves 3 to 5 ft subsiding to
2 to 4 ft. 
.sunday...south winds 5 to 10 kt becoming southeast. waves 1 to
3 ft. 
.sunday night...southeast winds 10 to 15 kt becoming south 10 to
20 kt. waves 2 to 4 ft. 
.monday...south winds 10 to 20 kt increasing to 30 kt in the
afternoon. waves 3 to 5 ft building to 5 to 8 ft occasionally to
10 ft. 
.monday night...southeast winds to 30 kt becoming south. chance
of showers. waves 7 to 10 ft occasionally to 13 ft building to
8 to 11 ft occasionally to 14 ft. 
.tuesday...south gales to 40 kt. showers likely. waves 10 to 14 
ft occasionally to 18 ft. 
.tuesday night...south gales to 35 kt diminishing to 30 kt.
showers likely. waves 8 to 12 ft occasionally to 16 ft subsiding
to 5 to 8 ft occasionally to 10 ft. 
.wednesday...south winds 15 to 25 kt increasing to 30 kt. chance
of showers. waves 5 to 8 ft occasionally to 10 ft. 
.thursday...west winds 10 to 20 kt. waves 2 to 4 ft.  

$$

fzus63 kmqt 312001
glfls 
expires:202611010800;;039809

open lake forecast for lake superior
national weather service marquette mi
400 pm edt sat oct 31 2026

for waters beyond 5 nautical miles of shore on lake superior.

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

.synopsis...

a 30.5 inch high pressure over the eastern great lakes will continue 
to slowly move southeast, reaching the eastern seaboard sunday 
night. this will continue to extend a 30.2 inch ridge over lake 
superior through sunday. thereafter a 29.4 inch low will move from 
colorado to the plains on monday, then lift into minnesota monday 
evening, eventually passing over western lake superior at 29.7 
inches on tuesday. this low then passes north towards james bay 
tuesday night. in its wake, high pressure ridging of 30.0 inches 
builds back over lake superior by late wednesday through friday.




lsz264-010800-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
400 pm edt sat oct 31 2026

.late this afternoon...south winds less than 10 knots. waves calm
to 2 feet. 
.tonight...south winds 5 to 15 knots veering southwest late. a
slight chance of showers after midnight. waves calm to 2 feet. 
.sunday...southwest winds 5 to 15 knots. a slight chance of
showers through early afternoon. waves calm to 2 feet. 
.sunday night...southwest winds less than 10 knots becoming south
5 to 15 knots after midnight. waves calm to 2 feet. 
.monday...south winds 5 to 15 knots becoming southeast 10 to
20 knots by mid afternoon. a chance of showers by mid afternoon.
waves building to 1 to 3 feet. 
.monday night...southeast winds 10 to 20 knots increasing to
15 to 25 knots after midnight. showers. waves building to 3 to
5 feet occasionally to 7 feet. 
.tuesday...southeast winds 15 to 25 knots veering south by mid
afternoon. showers. waves building to 3 to 6 feet occasionally to
8 feet. 
.tuesday night...southwest winds 15 to 25 knots diminishing to
10 to 20 knots after midnight. showers likely. waves subsiding to
2 to 4 feet, then building to 3 to 5 feet occasionally to 7 feet.
.wednesday...west winds 10 to 20 knots veering north. a chance of
showers. waves subsiding to 1 to 3 feet. 
.thursday...north winds 15 to 25 knots becoming northeast 5 to
15 knots. waves building to 2 to 4 feet, then subsiding to 1 to
3 feet. 

$$

fzus63 kmqt 312001
glfls 
expires:202611010800;;039810

open lake forecast for lake superior
national weather service marquette mi
400 pm edt sat oct 31 2026

for waters beyond 5 nautical miles of shore on lake superior.

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

.synopsis...

a 30.5 inch high pressure over the eastern great lakes will continue 
to slowly move southeast, reaching the eastern seaboard sunday 
night. this will continue to extend a 30.2 inch ridge over lake 
superior through sunday. thereafter a 29.4 inch low will move from 
colorado to the plains on monday, then lift into minnesota monday 
evening, eventually passing over western lake superior at 29.7 
inches on tuesday. this low then passes north towards james bay 
tuesday night. in its wake, high pressure ridging of 30.0 inches 
builds back over lake superior by late wednesday through friday.




lsz265-010800-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
400 pm edt sat oct 31 2026

.late this afternoon...southeast winds 5 to 15 knots. waves calm
to 2 feet. 
.tonight...south winds 5 to 15 knots. a slight chance of showers.
waves calm to 2 feet. 
.sunday...south winds 5 to 15 knots veering southwest in the
afternoon, then backing south late. waves calm to 2 feet. 
.sunday night...south winds 5 to 15 knots. waves calm to 2 feet. 
.monday...south winds 5 to 15 knots becoming southeast 10 to
20 knots by mid afternoon. a chance of showers by mid afternoon.
waves building to 1 to 3 feet. 
.monday night...southeast winds 20 to 30 knots. showers. waves
building to 3 to 5 feet occasionally to 7 feet. 
.tuesday...southeast winds 20 to 30 knots veering south by mid
afternoon. showers. waves 3 to 5 feet occasionally to 7 feet. 
.tuesday night...southwest winds 20 to 30 knots. showers likely
through midnight, then a chance of showers after midnight. waves
subsiding to 1 to 3 feet, then building to 2 to 4 feet. 
.wednesday...west winds 20 to 30 knots veering north. a chance of
showers. waves subsiding to 1 to 3 feet, then building to 2 to
4 feet. 
.thursday...north winds 20 to 30 knots becoming northeast 15 to
25 knots. waves 2 to 4 feet. 

$$

fzus63 kmqt 312001
glfls 
expires:202611010800;;039811

open lake forecast for lake superior
national weather service marquette mi
400 pm edt sat oct 31 2026

for waters beyond 5 nautical miles of shore on lake superior.

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

.synopsis...

a 30.5 inch high pressure over the eastern great lakes will continue 
to slowly move southeast, reaching the eastern seaboard sunday 
night. this will continue to extend a 30.2 inch ridge over lake 
superior through sunday. thereafter a 29.4 inch low will move from 
colorado to the plains on monday, then lift into minnesota monday 
evening, eventually passing over western lake superior at 29.7 
inches on tuesday. this low then passes north towards james bay 
tuesday night. in its wake, high pressure ridging of 30.0 inches 
builds back over lake superior by late wednesday through friday.




lsz266-010800-
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-
400 pm edt sat oct 31 2026

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

$$

fzus63 kmqt 312001
glfls 
expires:202611010800;;039812

open lake forecast for lake superior
national weather service marquette mi
400 pm edt sat oct 31 2026

for waters beyond 5 nautical miles of shore on lake superior.

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

.synopsis...

a 30.5 inch high pressure over the eastern great lakes will continue 
to slowly move southeast, reaching the eastern seaboard sunday 
night. this will continue to extend a 30.2 inch ridge over lake 
superior through sunday. thereafter a 29.4 inch low will move from 
colorado to the plains on monday, then lift into minnesota monday 
evening, eventually passing over western lake superior at 29.7 
inches on tuesday. this low then passes north towards james bay 
tuesday night. in its wake, high pressure ridging of 30.0 inches 
builds back over lake superior by late wednesday through friday.




lsz267-010800-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
400 pm edt sat oct 31 2026

.late this afternoon...southeast winds 5 to 15 knots. waves calm
to 2 feet. 
.tonight...south winds 10 to 20 knots. a slight chance of showers
after midnight. waves calm to 2 feet. 
.sunday...south winds 10 to 20 knots becoming southwest 5 to
15 knots in the afternoon. a slight chance of showers through
early afternoon. waves calm to 2 feet. 
.sunday night...south winds 5 to 15 knots. waves calm to 2 feet. 
.monday...south winds 10 to 20 knots backing southeast by mid
afternoon. a chance of showers by mid afternoon. waves calm to
2 feet. 
.monday night...southeast winds 15 to 25 knots. showers. waves
building to 2 to 4 feet. 
.tuesday...south winds 20 to 30 knots. showers. waves building to
3 to 6 feet occasionally to 8 feet. 
.tuesday night...south winds 15 to 25 knots. showers through
midnight, then a chance of showers after midnight. waves
subsiding to 2 to 4 feet, then building to 3 to 5 feet
occasionally to 7 feet. 
.wednesday...southwest winds 20 to 30 knots becoming north 15 to
25 knots. a chance of showers. waves subsiding to 2 to 4 feet. 
.thursday...north winds 15 to 25 knots veering northeast. waves
2 to 4 feet. 

$$

fzus63 kmqt 312001
glfls 
expires:202611010800;;039808

open lake forecast for lake superior
national weather service marquette mi
400 pm edt sat oct 31 2026

for waters beyond 5 nautical miles of shore on lake superior.

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

.synopsis...

a 30.5 inch high pressure over the eastern great lakes will continue 
to slowly move southeast, reaching the eastern seaboard sunday 
night. this will continue to extend a 30.2 inch ridge over lake 
superior through sunday. thereafter a 29.4 inch low will move from 
colorado to the plains on monday, then lift into minnesota monday 
evening, eventually passing over western lake superior at 29.7 
inches on tuesday. this low then passes north towards james bay 
tuesday night. in its wake, high pressure ridging of 30.0 inches 
builds back over lake superior by late wednesday through friday.




lsz263-010800-
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-
400 pm edt sat oct 31 2026

.late this afternoon...east winds less than 10 knots. a slight
chance of showers. waves calm to 2 feet. 
.tonight...southeast winds less than 10 knots becoming south 5 to
15 knots after midnight. a slight chance of showers. waves calm
to 2 feet. 
.sunday...southwest winds 5 to 15 knots. a slight chance of
showers through early afternoon. waves calm to 2 feet. 
.sunday night...south winds 5 to 15 knots. waves calm to 2 feet. 
.monday...southeast winds 5 to 15 knots. showers likely by mid
afternoon. waves calm to 2 feet. 
.monday night...southeast winds 5 to 15 knots increasing to 10 to
20 knots after midnight. showers. waves building to 2 to 4 feet. 
.tuesday...southeast winds 10 to 20 knots veering southwest by
mid afternoon. showers. waves 2 to 4 feet. 
.tuesday night...southwest winds 10 to 20 knots increasing to
15 to 25 knots after midnight. showers likely. waves building to
3 to 5 feet occasionally to 7 feet. 
.wednesday...west winds 10 to 20 knots veering north. a chance of
rain showers. waves subsiding to 1 to 3 feet, then building to
2 to 4 feet. 
.thursday...north winds 10 to 20 knots veering northeast. waves
subsiding to 1 to 3 feet. 

$$

fzus63 kmqt 312001
glfls 
expires:202611010800;;039807

open lake forecast for lake superior
national weather service marquette mi
400 pm edt sat oct 31 2026

for waters beyond 5 nautical miles of shore on lake superior.

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

.synopsis...

a 30.5 inch high pressure over the eastern great lakes will continue 
to slowly move southeast, reaching the eastern seaboard sunday 
night. this will continue to extend a 30.2 inch ridge over lake 
superior through sunday. thereafter a 29.4 inch low will move from 
colorado to the plains on monday, then lift into minnesota monday 
evening, eventually passing over western lake superior at 29.7 
inches on tuesday. this low then passes north towards james bay 
tuesday night. in its wake, high pressure ridging of 30.0 inches 
builds back over lake superior by late wednesday through friday.




lsz162-010800-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
400 pm edt sat oct 31 2026 /300 pm cdt sat oct 31 2026/

.late this afternoon...east winds 5 to 15 knots. a chance of
showers. waves calm to 2 feet. 
.tonight...east winds 5 to 15 knots diminishing to less than
10 knots after midnight, then backing north late. a chance of
showers. waves calm to 2 feet. 
.sunday...southwest winds less than 10 knots increasing to 5 to
15 knots in the afternoon, then backing south late. waves calm to
2 feet. 
.sunday night...east winds less than 10 knots increasing to 5 to
15 knots after midnight. waves calm to 2 feet. 
.monday...east winds 5 to 15 knots increasing to 10 to 20 knots
by mid afternoon. a chance of showers through early afternoon,
then showers by mid afternoon. waves calm to 2 feet. 
.monday night...east winds 15 to 25 knots. showers. waves
building to 1 to 3 feet. 
.tuesday...southeast winds 15 to 25 knots veering west by mid
afternoon. showers. waves building to 2 to 4 feet, then subsiding
to 1 to 3 feet. 
.tuesday night...west winds 15 to 25 knots. a chance of showers.
waves building to 2 to 4 feet. 
.wednesday...west winds 15 to 25 knots becoming north 10 to
20 knots. a chance of showers. waves subsiding to calm to 2 feet.
.thursday...northeast winds 10 to 20 knots. waves building to
1 to 3 feet, then subsiding to calm to 2 feet. 

$$