fzus61 kbuf 160203
glflo 
expires:202610160900;;169209

open lake forecast for lake ontario
national weather service buffalo ny
1003 pm edt thu oct 15 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 high pressure ridge averaging 30.1 inches continues to 
exit eastward from the lake. elsewhere, a low wobbles northeastward 
from the southwestern great lakes to southern quebec tonight through 
friday and deepens to 29.4 inches. this low track will allow a warm 
front to sweep northeastward across the lake tonight and a strong 
cold front to sweep eastward across the lake on friday. behind the 
cold front, a ridge averaging 30.2 inches should affect the lake 
through this tuesday as one embedded high pressure center moves from 
the central great plains and vicinity to the canadian maritimes on 
friday through monday, and then another embedded and reinforcing 
high pressure center moves from near manitoba toward quebec this 
monday through tuesday.


loz063>065-160900-
lake ontario open waters from hamlin beach to the saint lawrence
river-
1003 pm edt thu oct 15 2026

.rest of tonight...east winds 15 to 25 knots becoming southeast
to 30 knots. a chance of rain late this evening, then rain after
midnight. waves 1 to 3 feet building to 4 to 7 feet. waves
occasionally around 9 feet. 
.friday...south winds to 30 knots becoming west. rain through
early afternoon, then a chance of rain late. waves 4 to 7 feet
building to 6 to 9 feet. waves occasionally around 11 feet. 
.friday night...northwest winds to 30 knots becoming north. a
chance of rain. waves 5 to 9 feet. waves occasionally around
11 feet. 
.saturday...north winds to 30 knots becoming northwest and
diminishing to 10 to 15 knots in the afternoon. waves 5 to 8 feet
subsiding to 2 to 4 feet. waves occasionally around 10 feet. 
.saturday night...west winds 15 to 20 knots. waves 2 to 4 feet
building to 3 to 5 feet. 
.sunday...southwest winds 15 to 20 knots. waves 3 to 5 feet
subsiding to 2 to 4 feet. 
.monday...southwest winds 15 to 20 knots diminishing to 5 to
15 knots. waves 2 to 4 feet subsiding to 1 foot or less. 
.tuesday...west winds 10 knots or less becoming northeast. waves
1 foot or less. 

$$

fzus61 kbuf 160203
glflo 
expires:202610160900;;169208

open lake forecast for lake ontario
national weather service buffalo ny
1003 pm edt thu oct 15 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 high pressure ridge averaging 30.1 inches continues to 
exit eastward from the lake. elsewhere, a low wobbles northeastward 
from the southwestern great lakes to southern quebec tonight through 
friday and deepens to 29.4 inches. this low track will allow a warm 
front to sweep northeastward across the lake tonight and a strong 
cold front to sweep eastward across the lake on friday. behind the 
cold front, a ridge averaging 30.2 inches should affect the lake 
through this tuesday as one embedded high pressure center moves from 
the central great plains and vicinity to the canadian maritimes on 
friday through monday, and then another embedded and reinforcing 
high pressure center moves from near manitoba toward quebec this 
monday through tuesday.


loz062-160900-
lake ontario open waters from the niagara river to hamlin beach-
1003 pm edt thu oct 15 2026

.rest of tonight...east winds 15 to 20 knots becoming southeast
10 to 15 knots. rain likely late this evening, then rain after
midnight. waves 3 to 5 feet subsiding to 2 to 4 feet. 
.friday...southwest winds 15 to 20 knots becoming northwest and
increasing to 30 knots. rain in the morning, then a chance of
rain in the afternoon. waves 2 to 4 feet building to 5 to 9 feet.
waves occasionally around 11 feet. 
.friday night...northwest winds to 30 knots becoming north. a
chance of rain. waves 5 to 8 feet. waves occasionally around
10 feet. 
.saturday...north winds 15 to 25 knots becoming west and
diminishing to 10 to 15 knots. waves 4 to 7 feet subsiding to
1 to 3 feet. waves occasionally around 9 feet. 
.saturday night...west winds 10 to 15 knots increasing to 15 to
20 knots. waves 2 to 4 feet building to 3 to 5 feet. 
.sunday...southwest winds 15 to 20 knots. waves 3 to 5 feet. 
.monday...southwest winds 5 to 15 knots becoming west. waves 2 to
4 feet subsiding to 2 feet or less. 
.tuesday...northwest winds less than 10 knots becoming northeast.
waves 1 foot or less. 

$$

fzus61 kcle 160129
glfle 
expires:202610160815;;168423

open lake forecast for lake erie
national weather service cleveland oh
929 pm edt thu oct 15 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 warm front will lift north across the lake late this evening as
low pressure 29.60 inches moves into the great lakes. a cold 
front will sweep across the lake early friday morning. high 
pressure 30.50 inches will build across the ohio valley and lower
great lakes region this weekend.


lez061-169-160815-
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-
929 pm edt thu oct 15 2026

.rest of tonight...southeast winds 10 to 15 knots becoming
southwest and increasing to 15 to 25 knots. a chance of showers
with a slight chance of thunderstorms late this evening, then
showers with a chance of thunderstorms after midnight. waves 1 to
3 feet building to 3 to 6 feet. 
.friday...southwest winds to 30 knots becoming northwest. showers
likely with a chance of thunderstorms early, then showers likely
with a slight chance of thunderstorms late in the morning. a
chance of showers in the afternoon. waves 5 to 8 feet building to
6 to 9 feet. waves occasionally around 11 feet. 
.friday night...northwest winds 20 to 25 knots becoming north. a
chance of showers in the evening. waves 5 to 8 feet. waves
occasionally around 10 feet. 
.saturday...north winds 15 to 25 knots becoming northwest and
diminishing to 10 to 15 knots. waves 3 to 6 feet subsiding to
1 to 3 feet. 
.saturday night...northwest winds 10 to 15 knots becoming
southwest 15 to 20 knots. waves 1 to 3 feet. 
.sunday...southwest winds 15 to 20 knots. waves 2 to 4 feet
subsiding to 1 to 3 feet. 
.monday...southwest winds 5 to 15 knots. waves 1 to 3 feet. 
.tuesday...west winds less than 10 knots becoming northeast.
waves 1 foot or less. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 160129
glfle 
expires:202610160815;;168421

open lake forecast for lake erie
national weather service cleveland oh
929 pm edt thu oct 15 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 warm front will lift north across the lake late this evening as
low pressure 29.60 inches moves into the great lakes. a cold 
front will sweep across the lake early friday morning. high 
pressure 30.50 inches will build across the ohio valley and lower
great lakes region this weekend.


lez162-163-160815-
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-
929 pm edt thu oct 15 2026

.rest of tonight...southeast winds 10 to 15 knots becoming
southwest and increasing to 15 to 25 knots. showers likely with a
slight chance of thunderstorms, then a chance of showers with a
slight chance of thunderstorms late. waves 1 to 2 feet building
to 2 to 4 feet. 
.friday...west winds 20 to 25 knots becoming northwest. a slight
chance of showers and thunderstorms early, then a slight chance
of showers. a chance of showers late. waves 3 to 6 feet. 
.friday night...north winds to 30 knots. a chance of showers in
the evening. waves 3 to 6 feet building to 4 to 7 feet. waves
occasionally around 9 feet. 
.saturday...north winds to 30 knots becoming northwest and
diminishing to 5 to 15 knots in the afternoon. waves 3 to 6 feet
subsiding to 1 to 3 feet. 
.saturday night...west winds 5 to 15 knots becoming southwest.
waves 2 feet or less. 
.sunday...southwest winds 10 to 15 knots. waves 1 to 2 feet. 
.monday...southwest winds 10 knots or less becoming west. waves
2 feet or less. 
.tuesday...northwest winds less than 10 knots. waves 1 foot or
less. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 160129
glfle 
expires:202610160815;;168422

open lake forecast for lake erie
national weather service cleveland oh
929 pm edt thu oct 15 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 warm front will lift north across the lake late this evening as
low pressure 29.60 inches moves into the great lakes. a cold 
front will sweep across the lake early friday morning. high 
pressure 30.50 inches will build across the ohio valley and lower
great lakes region this weekend.


lez164>168-160815-
the islands to vermilion oh beyond 5 nm off shoreline to us-
canadian border-
vermilion to avon point oh beyond 5 nm off shoreline to us-
canadian border-
avon point to willowick oh beyond 5 nm off shoreline to us-
canadian border-willowick to geneva-on-the-
lake oh beyond 5nm off shoreline to us-canadian border-geneva-on-
the-lake to conneaut oh beyond 5 nm off shoreline to us-
canadian border-
929 pm edt thu oct 15 2026

.rest of tonight...southeast winds 10 to 15 knots becoming
southwest and increasing to 30 knots after midnight. a chance of
showers and thunderstorms late this evening, then showers likely
with a slight chance of thunderstorms after midnight. waves 1 to
3 feet building to 4 to 7 feet. waves occasionally around 9 feet.
.friday...southwest winds to 30 knots becoming northwest. a
chance of showers with a slight chance of thunderstorms in the
morning, then a slight chance of showers early in the afternoon.
showers likely late. waves 5 to 9 feet. waves occasionally around
11 feet. 
.friday night...north winds to 30 knots. a chance of showers.
waves 6 to 10 feet building to 7 to 11 feet. waves occasionally
around 14 feet. 
.saturday...north winds to 30 knots becoming northwest and
diminishing to 5 to 10 knots in the afternoon. waves 5 to 9 feet
subsiding to 2 to 4 feet. waves occasionally around 11 feet. 
.saturday night...northwest winds 5 to 15 knots becoming
southwest 15 to 20 knots. waves 1 to 3 feet building to 2 to
4 feet. 
.sunday...southwest winds 15 to 20 knots. waves 2 to 4 feet. 
.monday...southwest winds 5 to 15 knots. waves 2 to 4 feet
subsiding to 1 foot or less. 
.tuesday...west winds 10 knots or less becoming northeast. waves
1 foot or less. 

winds and waves higher in and near thunderstorms.

$$

fzus63 kdtx 160147
glfsc 
expires:202610161000;;168793

lake st clair forecast
national weather service detroit/pontiac mi
947 pm edt thu oct 15 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 is forecast to strengthen to 29.50 inches
as it tracks across the central great lakes tonight and early
friday. a strong cold front in its wake brings northerly gales
friday afternoon and evening. a ridge of high pressure then
builds across the ohio valley on saturday and sunday.


lcz460-161000-
lake st clair-
947 pm edt thu oct 15 2026

...small craft advisory in effect through saturday morning...

.rest of tonight...southeast winds 10 to 15 knots becoming south 15
to 20 knots after midnight...then becoming southwest 20 to 25 knots
early in the morning. rain by midnight...then a chance of light rain
early in the morning. waves 1 to 3 feet building to 2 to 4 feet
early in the morning.
.friday...west winds 20 to 25 knots with gusts to 30 knots becoming
northwest 15 to 20 knots early in the afternoon...then increasing to
20 to 25 knots with gusts to 30 knots late in the afternoon. mostly
cloudy. a chance of light rain early in the morning. a chance of
light rain early in the afternoon...then light rain likely late in
the afternoon. waves 1 to 3 feet building to 2 to 4 feet late in the
afternoon.
.friday night...north winds to 30 knots with brief gusts to 35 
knot gales possible. mostly cloudy early in the evening becoming 
mostly clear. waves 3 to 5 feet. waves occasionally around 7 feet.
.saturday...north winds 20 to 25 knots with gusts to 30 knots
becoming northwest 5 to 10 knots. sunny. waves 2 to 4 feet subsiding
to 2 feet or less in the late morning and afternoon.
.saturday night...southwest winds 10 to 15 knots. clear. waves 2
feet or less.
.sunday...southwest winds 10 to 15 knots. clear. waves 1 to 3 feet.
.monday...southwest winds 10 to 15 knots. mostly clear. waves 2 feet
or less.
.tuesday...light and variable winds. mostly clear. waves 2 feet or
less.

$$

fzus63 kdtx 160145
glflh 
expires:202610161000;;168786

open lake forecast for lake huron
national weather service detroit/pontiac mi
945 pm edt thu oct 15 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 is forecast to strengthen to 29.50 inches
as it tracks across the central great lakes tonight and early
friday. a strong cold front in its wake brings northerly gales
friday afternoon and evening. a ridge of high pressure then
builds across the ohio valley on saturday and sunday.


lhz362-363-161000-
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-
945 pm edt thu oct 15 2026

...gale warning in effect from friday afternoon through late
friday night...

.rest of tonight...southeast winds 15 to 20 knots becoming east
10 to 15 knots after midnight. rain. waves 3 to 5 feet. 
.friday...west winds 15 to 20 knots becoming north 20 to 25 knots
late in the morning...then increasing to 30 knots with gusts to
35 knot gales in the afternoon. a chance of rain. waves 4 to
6 feet building to 8 to 12 feet in the afternoon. waves
occasionally around 15 feet. 
.friday night...north winds to 30 knots decreasing to 20 to
25 knots after midnight. gusts to 35 knot gales. a chance of rain
in the evening. waves 10 to 14 feet. waves occasionally around
18 feet. 
.saturday...north winds 15 to 20 knots becoming west 10 to
15 knots in the late morning and afternoon. waves 6 to 9 feet
subsiding to 3 to 5 feet in the late morning and afternoon. waves
occasionally around 12 feet. 
.saturday night...southwest winds 15 to 20 knots. waves 4 to
6 feet. 
.sunday...southwest winds 20 to 25 knots decreasing to 15 to
20 knots late in the evening. gusts to 35 knot gales. waves 6 to
9 feet. waves occasionally around 12 feet. 
.monday...southwest winds 15 to 20 knots decreasing to 5 to
10 knots. waves 3 to 5 feet subsiding to 1 to 3 feet. 
.tuesday...light and variable winds. waves 2 feet or less. 


$$

fzus63 kdtx 160145
glflh 
expires:202610161000;;168787

open lake forecast for lake huron
national weather service detroit/pontiac mi
945 pm edt thu oct 15 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 is forecast to strengthen to 29.50 inches
as it tracks across the central great lakes tonight and early
friday. a strong cold front in its wake brings northerly gales
friday afternoon and evening. a ridge of high pressure then
builds across the ohio valley on saturday and sunday.


lhz462>464-161000-
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-
945 pm edt thu oct 15 2026

...gale warning in effect from friday afternoon through late
friday night...

.rest of tonight...southeast winds 15 to 20 knots. rain. waves
3 to 5 feet. 
.friday...southwest winds 15 to 20 knots becoming west 20 to
25 knots with gusts to around 30 knots late in the morning...then
veering to the northwest with gusts to around 30 knots early in
the afternoon becoming north to 30 knots with gusts to 35 knot
gales late in the afternoon. a chance of rain in the morning...
then rain in the afternoon. waves 4 to 6 feet building to 8 to
12 feet in the afternoon. waves occasionally around 15 feet. 
.friday night...north at 35 knot gales with gusts to 40 knot
gales decreasing to 30 knots after midnight. a chance of rain.
waves 12 to 16 feet. waves occasionally around 20 feet.
.saturday...north winds 20 to 25 knots becoming northwest 10 to
15 knots in the late morning and early afternoon...then backing
to the west early in the afternoon. waves 8 to 12 feet subsiding
to 3 to 5 feet early in the afternoon. waves occasionally around
15 feet. 
.saturday night...southwest winds 15 to 20 knots. waves 3 to
5 feet. 
.sunday...southwest winds 15 to 20 knots. gusts to 30 knots late
in the morning. waves 4 to 6 feet. waves occasionally around
8 feet. 
.monday...southwest winds 10 to 15 knots decreasing to 5 to
10 knots . waves 2 to 4 feet subsiding to 1 to 3 feet. 
.tuesday...west winds 5 to 10 knots early in the morning becoming
light and variable...then becoming northeast 5 to 10 knots by
midnight. waves 2 feet or less. 


$$

fzus63 kdtx 160145
glflh 
expires:202610161000;;168785

open lake forecast for lake huron
national weather service detroit/pontiac mi
945 pm edt thu oct 15 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 is forecast to strengthen to 29.50 inches
as it tracks across the central great lakes tonight and early
friday. a strong cold front in its wake brings northerly gales
friday afternoon and evening. a ridge of high pressure then
builds across the ohio valley on saturday and sunday.


lhz361-161000-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
945 pm edt thu oct 15 2026

...gale warning in effect from friday afternoon through late
friday night...

.rest of tonight...east winds 10 to 15 knots backing to the
northeast early in the morning. rain. waves 2 to 4 feet. 
.friday...north winds 15 to 20 knots increasing to 30 knots with
gusts to 35 knot gales. a chance of rain in the morning. waves
4 to 6 feet building to 6 to 9 feet late in the afternoon. waves
occasionally around 12 feet. 
.friday night...north winds to 30 knots with gusts to 35 knot
gales decreasing to 15 to 20 knots. waves 5 to 7 feet. waves
occasionally around 10 feet. 
.saturday...north winds 5 to 10 knots becoming west 10 to
15 knots in the late morning and early afternoon...then
increasing to 20 to 25 knots with gusts to around 30 knots early
in the afternoon. waves 1 to 3 feet building to 4 to 6 feet early
in the afternoon. waves occasionally around 8 feet. 
.saturday night...southwest winds 15 to 20 knots with gusts to
around 30 knots. waves 4 to 6 feet. waves occasionally around
8 feet. 
.sunday...southwest winds 15 to 20 knots with gusts to around
30 knots. waves 3 to 5 feet. 
.monday...southwest winds 10 to 15 knots becoming light and
variable. waves 2 to 4 feet subsiding to 2 feet or less. 
.tuesday...light and variable winds. waves 2 feet or less. 


$$

fzus63 kmkx 160207
glflm 
expires:202610160930;;169472

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
907 pm cdt thu oct 15 2026

for waters beyond five nautical miles of shore on lake michigan.

waves are provided as a range of significant wave heights, which
is the average of the highest 1/3 of the wave, along with the
average height of the highest 10% of the waves which will
occasionally be encountered.

.synopsis...

low pressure of 29.7 inches over northeast il will deepen to 
around 29.4 inches as it shifts into the eastern great lakes 
through friday. expect a northerly wind shift tonight to  
increase to high-end gales by late friday morning as the low
departs while a strong high pressure around 30.7 inches builds into
the plains. a gale warning remains in effect for all of the open 
waters of lake michigan friday morning into friday night.

light rain will continue over the north half overnight, with
intermittent rain over the south half. lake effect showers and a 
few thunderstorms are possible friday along the back side of 
departing low pressure. a few waterspouts are possible in the 
friday showers/thunderstorms, particularly over the south half of
lake michigan. 

as the high sinks toward the ohio river valley on saturday, strong low
pressure around 29.0 inches will develop in northern manitoba
through the weekend. the tight pressure gradient may bring 
southwest gales to lake michigan on sunday, primarily over the
north half.


lmz080-669-671-673-675-777-779-870-872-874-876-878-160930-
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 pm cdt thu oct 15 2026

sheboygan wi to pentwater mi south...

...gale warning in effect from friday morning through late friday
night...

.rest of tonight...south winds 15 to 25 kt becoming southwest
late this evening, then becoming west to 30 kt after midnight. 
chance of showers. slight chance of waterspouts overnight. waves 
2 to 4 ft building to 8 to 12 ft occasionally to 16 ft. 
.friday...northwest gales to 35 kt becoming north gales to 40 kt
early in the afternoon, then increasing to gales to 45 kt late.
slight chance of waterspouts. chance of showers in the morning,
then showers in the afternoon. waves 10 to 14 ft occasionally to
18 ft building to 18 to 23 ft occasionally to 30 ft. 
.friday night...north gales to 45 kt diminishing to 30 kt. chance
of rain showers in the evening. waves 18 to 23 ft occasionally to
30 ft subsiding to 10 to 14 ft occasionally to 18 ft. 
.saturday...north winds 10 to 20 kt backing to southwest 15 to
25 kt. waves 7 to 10 ft occasionally to 13 ft subsiding to 4 to
6 ft occasionally to 8 ft. 
.saturday night...southwest winds to 30 kt. waves 7 to 10 ft
occasionally to 13 ft. 
.sunday...southwest winds to 30 kt with a few gale force gusts up
to 35 kt. waves 10 to 14 ft occasionally to 18 ft.
.sunday night...southwest winds to 30 kt diminishing to 15 to 25 
kt. waves 8 to 12 ft occasionally to 16 ft subsiding to 6 to 9 ft 
occasionally to 12 ft. 
.monday...southwest winds 10 to 20 kt. waves 4 to 6 ft
occasionally to 8 ft subsiding to 2 to 4 ft. 
.tuesday...southwest winds 5 to 10 kt backing to southeast. waves
1 to 2 ft.  

$$

fzus63 kmkx 160207
glflm 
expires:202610160930;;169471

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
907 pm cdt thu oct 15 2026

for waters beyond five nautical miles of shore on lake michigan.

waves are provided as a range of significant wave heights, which
is the average of the highest 1/3 of the wave, along with the
average height of the highest 10% of the waves which will
occasionally be encountered.

.synopsis...

low pressure of 29.7 inches over northeast il will deepen to 
around 29.4 inches as it shifts into the eastern great lakes 
through friday. expect a northerly wind shift tonight to  
increase to high-end gales by late friday morning as the low
departs while a strong high pressure around 30.7 inches builds into
the plains. a gale warning remains in effect for all of the open 
waters of lake michigan friday morning into friday night.

light rain will continue over the north half overnight, with
intermittent rain over the south half. lake effect showers and a 
few thunderstorms are possible friday along the back side of 
departing low pressure. a few waterspouts are possible in the 
friday showers/thunderstorms, particularly over the south half of
lake michigan. 

as the high sinks toward the ohio river valley on saturday, strong low
pressure around 29.0 inches will develop in northern manitoba
through the weekend. the tight pressure gradient may bring 
southwest gales to lake michigan on sunday, primarily over the
north half.


lmz261-362-364-366-563-565-567-868-160930-
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 pm cdt thu oct 15 2026

sheboygan wi to pentwater mi north...

...gale warning in effect from friday morning through late friday
night...

.rest of tonight...southeast winds 10 to 20 kt becoming east late
this evening, then becoming north 15 to 25 kt after midnight and
increasing to 30 kt late. showers. slight chance of waterspouts
overnight. waves 2 to 4 ft building to 5 to 8 ft occasionally to
10 ft. 
.friday...north winds to 30 kt increasing to gales to 45 kt.
slight chance of waterspouts. showers in the morning, then chance
of showers in the afternoon. waves 7 to 10 ft occasionally to
13 ft building to 14 to 18 ft occasionally to 23 ft. 
.friday night...north gales to 40 kt becoming northwest winds 10 
to 20 kt. waves 14 to 18 ft occasionally to 23 ft subsiding to 6 
to 9 ft occasionally to 12 ft. 
.saturday...west winds 15 to 25 kt becoming southwest to 30 kt.
waves 4 to 6 ft occasionally to 8 ft building to 5 to 8 ft
occasionally to 10 ft. 
.saturday night...southwest gales to 35 kt increasing to gales to
40 kt. waves 6 to 9 ft occasionally to 12 ft building to 8 to
12 ft occasionally to 16 ft. 
.sunday...southwest gales to 40 kt. waves 10 to 14 ft
occasionally to 18 ft. 
.sunday night...southwest gales to 40 kt. waves 8 to 12 ft
occasionally to 16 ft subsiding to 7 to 10 ft occasionally to
13 ft. 
.monday...southwest winds 15 to 25 kt diminishing to 10 to 20 kt.
waves 4 to 7 ft occasionally to 9 ft subsiding to 2 to 4 ft. 
.tuesday...northeast winds 5 to 10 kt becoming east. waves 1 to
2 ft.  

$$

fzus63 kmqt 160201
glfls 
expires:202610160800;;169053

open lake forecast for lake superior
national weather service marquette mi
1001 pm edt thu oct 15 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 29.6 inch low over lower michigan lifts to southern ontario at 
29.5 inches friday morning. in its wake, a 30.8 inch high lifting 
off of the central rockies tonight weakens to 30.6 inches on friday 
as it moves east over the plains. as it does so, the aforementioned 
low deepens to 29.4 inches and heads towards the mouth of the st. 
lawrence river. the high then slides south of the great lakes at 
30.5 inches by saturday night as a 29.2 inch alberta clipper moves 
through the canadian prairies towards hudson bay, deepening to 29.0 
inches by the time it arrives on sunday. this low is projected to 
bring troughing of 29.9 inches over lake superior on sunday. as the 
low moves east over hudson bay and weakens with time sunday night 
into monday, expect high pressure ridging of 30.3 inches to return 
to the upper great lakes by late monday. the high pressure ridging 
strengthens to 30.4 inches over lake superior by tuesday as the high 
pressure center at 30.5 inches over northern ontario lifts towards 
james bay. 




lsz264-160800-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
1001 pm edt thu oct 15 2026

...gale warning in effect from 5 am edt friday through friday
afternoon...

.rest of tonight...east winds 5 to 15 knots becoming northeast
15 to 25 knots after midnight, then becoming north gales to
35 knots late. rain. waves calm to 2 feet building to 7 to
10 feet occasionally to 13 feet. 
.friday...north gales to 45 knots. a slight chance of rain
showers through early afternoon. waves building to 11 to 15 feet
occasionally to 19 feet, then subsiding to 7 to 10 feet
occasionally to 13 feet. 
.friday night...northwest winds 20 to 30 knots diminishing to
10 to 20 knots after midnight, then becoming west 20 to 30 knots
late. waves subsiding to 1 to 3 feet, then building to 3 to
6 feet occasionally to 8 feet. 
.saturday...west gales to 35 knots backing southwest by mid
afternoon. waves building to 7 to 11 feet occasionally to
14 feet. 
.saturday night...southwest gales to 40 knots. waves subsiding to
5 to 8 feet occasionally to 10 feet, then building to 8 to
11 feet occasionally to 14 feet. 
.sunday...southwest gales to 40 knots. waves building to 10 to
14 feet occasionally to 18 feet, then subsiding to 7 to 10 feet
occasionally to 13 feet. 
.sunday night...west gales to 35 knots diminishing to 15 to
25 knots after midnight. waves subsiding to 1 to 3 feet. 
.monday...west winds 5 to 15 knots diminishing to less than
10 knots. waves subsiding to calm to 2 feet. 
.tuesday...east winds 5 to 15 knots veering southeast. waves calm
to 2 feet. 

$$

fzus63 kmqt 160201
glfls 
expires:202610160800;;169054

open lake forecast for lake superior
national weather service marquette mi
1001 pm edt thu oct 15 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 29.6 inch low over lower michigan lifts to southern ontario at 
29.5 inches friday morning. in its wake, a 30.8 inch high lifting 
off of the central rockies tonight weakens to 30.6 inches on friday 
as it moves east over the plains. as it does so, the aforementioned 
low deepens to 29.4 inches and heads towards the mouth of the st. 
lawrence river. the high then slides south of the great lakes at 
30.5 inches by saturday night as a 29.2 inch alberta clipper moves 
through the canadian prairies towards hudson bay, deepening to 29.0 
inches by the time it arrives on sunday. this low is projected to 
bring troughing of 29.9 inches over lake superior on sunday. as the 
low moves east over hudson bay and weakens with time sunday night 
into monday, expect high pressure ridging of 30.3 inches to return 
to the upper great lakes by late monday. the high pressure ridging 
strengthens to 30.4 inches over lake superior by tuesday as the high 
pressure center at 30.5 inches over northern ontario lifts towards 
james bay. 




lsz265-160800-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
1001 pm edt thu oct 15 2026

...gale warning in effect from 6 am edt friday through friday
evening...

.rest of tonight...southeast winds 5 to 15 knots becoming
northeast 10 to 20 knots after midnight, then becoming north
gales to 35 knots late. rain. waves calm to 2 feet building to
4 to 7 feet occasionally to 9 feet. 
.friday...north gales to 45 knots. a chance of showers. waves
building to 15 to 20 feet occasionally to 25 feet, then subsiding
to 10 to 14 feet occasionally to 18 feet. 
.friday night...north gales to 35 knots becoming northwest 15 to
25 knots after midnight, then backing west late. waves subsiding
to 2 to 4 feet. 
.saturday...west winds 20 to 30 knots backing southwest by mid
afternoon. waves building to 3 to 6 feet occasionally to 8 feet,
then subsiding to 2 to 4 feet. 
.saturday night...southwest winds 20 to 30 knots. waves building
to 3 to 5 feet occasionally to 7 feet. 
.sunday...southwest winds 20 to 30 knots. waves building to 3 to
6 feet occasionally to 8 feet, then subsiding to 1 to 3 feet. 
.sunday night...southwest winds 20 to 30 knots becoming west
15 to 25 knots after midnight. waves subsiding to calm to 2 feet.
.monday...west winds 5 to 15 knots. waves calm to 2 feet. 
.tuesday...east winds 5 to 15 knots becoming southeast 10 to
20 knots. waves calm to 2 feet. 

$$

fzus63 kmqt 160201
glfls 
expires:202610160800;;169055

open lake forecast for lake superior
national weather service marquette mi
1001 pm edt thu oct 15 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 29.6 inch low over lower michigan lifts to southern ontario at 
29.5 inches friday morning. in its wake, a 30.8 inch high lifting 
off of the central rockies tonight weakens to 30.6 inches on friday 
as it moves east over the plains. as it does so, the aforementioned 
low deepens to 29.4 inches and heads towards the mouth of the st. 
lawrence river. the high then slides south of the great lakes at 
30.5 inches by saturday night as a 29.2 inch alberta clipper moves 
through the canadian prairies towards hudson bay, deepening to 29.0 
inches by the time it arrives on sunday. this low is projected to 
bring troughing of 29.9 inches over lake superior on sunday. as the 
low moves east over hudson bay and weakens with time sunday night 
into monday, expect high pressure ridging of 30.3 inches to return 
to the upper great lakes by late monday. the high pressure ridging 
strengthens to 30.4 inches over lake superior by tuesday as the high 
pressure center at 30.5 inches over northern ontario lifts towards 
james bay. 




lsz266-160800-
lake superior east of a line from manitou island to marquette mi
and west of a line from grand marais mi to the us/canadian border
beyond 5nm from shore-
1001 pm edt thu oct 15 2026

...gale warning in effect from 6 am edt friday through friday
evening...

.rest of tonight...east winds 5 to 15 knots becoming northeast
10 to 20 knots after midnight, then becoming north gales to
35 knots late. rain. waves calm to 2 feet building to 4 to 7 feet
occasionally to 9 feet. 
.friday...north gales to 45 knots. a chance of showers. waves
building to 15 to 20 feet occasionally to 25 feet, then subsiding
to 12 to 17 feet occasionally to 21 feet. 
.friday night...north gales to 35 knots becoming northwest 15 to
25 knots after midnight, then backing west late. a slight chance
of rain showers. waves subsiding to 3 to 5 feet occasionally to
7 feet. 
.saturday...west gales to 35 knots backing southwest by mid
afternoon. waves building to 7 to 11 feet occasionally to
14 feet. 
.saturday night...southwest winds 20 to 30 knots. waves subsiding
to 4 to 8 feet occasionally to 10 feet. 
.sunday...southwest winds 20 to 30 knots. waves building to 8 to
11 feet occasionally to 14 feet, then subsiding to 6 to 9 feet
occasionally to 11 feet. 
.sunday night...southwest winds 20 to 30 knots becoming west
10 to 20 knots after midnight. waves subsiding to 2 to 4 feet. 
.monday...west winds 5 to 15 knots. waves subsiding to calm to
2 feet. 
.tuesday...east winds 5 to 15 knots veering southeast. waves calm
to 2 feet. 

$$

fzus63 kmqt 160201
glfls 
expires:202610160800;;169056

open lake forecast for lake superior
national weather service marquette mi
1001 pm edt thu oct 15 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 29.6 inch low over lower michigan lifts to southern ontario at 
29.5 inches friday morning. in its wake, a 30.8 inch high lifting 
off of the central rockies tonight weakens to 30.6 inches on friday 
as it moves east over the plains. as it does so, the aforementioned 
low deepens to 29.4 inches and heads towards the mouth of the st. 
lawrence river. the high then slides south of the great lakes at 
30.5 inches by saturday night as a 29.2 inch alberta clipper moves 
through the canadian prairies towards hudson bay, deepening to 29.0 
inches by the time it arrives on sunday. this low is projected to 
bring troughing of 29.9 inches over lake superior on sunday. as the 
low moves east over hudson bay and weakens with time sunday night 
into monday, expect high pressure ridging of 30.3 inches to return 
to the upper great lakes by late monday. the high pressure ridging 
strengthens to 30.4 inches over lake superior by tuesday as the high 
pressure center at 30.5 inches over northern ontario lifts towards 
james bay. 




lsz267-160800-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
1001 pm edt thu oct 15 2026

...gale warning in effect from 6 am edt friday through friday
evening...

.rest of tonight...southeast winds 10 to 20 knots backing east
after midnight, then becoming northeast 15 to 25 knots late.
rain. waves 1 to 3 feet building to 3 to 5 feet occasionally to
7 feet. 
.friday...north gales to 40 knots. a chance of showers. waves
building to 10 to 14 feet occasionally to 18 feet. 
.friday night...north gales to 35 knots diminishing to 15 to
25 knots after midnight, then becoming west 10 to 20 knots late.
a slight chance of rain showers. waves subsiding to 3 to 5 feet
occasionally to 7 feet. 
.saturday...west winds 15 to 25 knots becoming southwest 20 to
30 knots by mid afternoon. waves building to 4 to 7 feet
occasionally to 9 feet, then subsiding to 3 to 6 feet
occasionally to 8 feet. 
.saturday night...southwest winds 20 to 30 knots. waves building
to 4 to 7 feet occasionally to 9 feet. 
.sunday...southwest gales to 35 knots diminishing to 20 to
30 knots by mid afternoon. waves building to 5 to 8 feet
occasionally to 10 feet, then subsiding to 3 to 6 feet
occasionally to 8 feet. 
.sunday night...southwest winds 20 to 30 knots diminishing to
15 to 25 knots after midnight. waves subsiding to 2 to 4 feet. 
.monday...west winds 5 to 15 knots. waves subsiding to calm to
2 feet. 
.tuesday...northeast winds 5 to 15 knots veering southeast. waves
calm to 2 feet. 

$$

fzus63 kmqt 160201
glfls 
expires:202610160800;;169051

open lake forecast for lake superior
national weather service marquette mi
1001 pm edt thu oct 15 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 29.6 inch low over lower michigan lifts to southern ontario at 
29.5 inches friday morning. in its wake, a 30.8 inch high lifting 
off of the central rockies tonight weakens to 30.6 inches on friday 
as it moves east over the plains. as it does so, the aforementioned 
low deepens to 29.4 inches and heads towards the mouth of the st. 
lawrence river. the high then slides south of the great lakes at 
30.5 inches by saturday night as a 29.2 inch alberta clipper moves 
through the canadian prairies towards hudson bay, deepening to 29.0 
inches by the time it arrives on sunday. this low is projected to 
bring troughing of 29.9 inches over lake superior on sunday. as the 
low moves east over hudson bay and weakens with time sunday night 
into monday, expect high pressure ridging of 30.3 inches to return 
to the upper great lakes by late monday. the high pressure ridging 
strengthens to 30.4 inches over lake superior by tuesday as the high 
pressure center at 30.5 inches over northern ontario lifts towards 
james bay. 




lsz162-160800-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
1001 pm edt thu oct 15 2026 /901 pm cdt thu oct 15 2026/

...gale warning in effect from 5 am edt /4 am cdt/ friday through
friday afternoon...

.rest of tonight...northwest winds 10 to 20 knots becoming north
15 to 25 knots after midnight, then increasing to gales to
35 knots late. a chance of rain. waves calm to 2 feet building to
6 to 9 feet occasionally to 11 feet. 
.friday...north gales to 40 knots diminishing to 15 to 25 knots
late. waves building to 9 to 12 feet occasionally to 15 feet,
then subsiding to 3 to 6 feet occasionally to 8 feet. 
.friday night...northwest winds 10 to 20 knots backing west after
midnight, then increasing to 20 to 30 knots late. waves subsiding
to calm to 2 feet, then building to 3 to 5 feet occasionally to
7 feet. 
.saturday...southwest gales to 35 knots. waves building to 7 to
10 feet occasionally to 13 feet, then subsiding to 5 to 8 feet
occasionally to 10 feet. 
.saturday night...southwest gales to 35 knots. waves building to
7 to 10 feet occasionally to 13 feet. 
.sunday...southwest gales to 35 knots. waves building to 8 to
11 feet occasionally to 14 feet, then subsiding to 5 to 8 feet
occasionally to 10 feet. 
.sunday night...southwest winds 20 to 30 knots becoming west 5 to
15 knots after midnight. waves subsiding to calm to 2 feet. 
.monday...west winds 5 to 15 knots veering north. waves calm to
2 feet. 
.tuesday...east winds 5 to 15 knots. waves calm to 2 feet. 

$$

fzus63 kmqt 160201
glfls 
expires:202610160800;;169052

open lake forecast for lake superior
national weather service marquette mi
1001 pm edt thu oct 15 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 29.6 inch low over lower michigan lifts to southern ontario at 
29.5 inches friday morning. in its wake, a 30.8 inch high lifting 
off of the central rockies tonight weakens to 30.6 inches on friday 
as it moves east over the plains. as it does so, the aforementioned 
low deepens to 29.4 inches and heads towards the mouth of the st. 
lawrence river. the high then slides south of the great lakes at 
30.5 inches by saturday night as a 29.2 inch alberta clipper moves 
through the canadian prairies towards hudson bay, deepening to 29.0 
inches by the time it arrives on sunday. this low is projected to 
bring troughing of 29.9 inches over lake superior on sunday. as the 
low moves east over hudson bay and weakens with time sunday night 
into monday, expect high pressure ridging of 30.3 inches to return 
to the upper great lakes by late monday. the high pressure ridging 
strengthens to 30.4 inches over lake superior by tuesday as the high 
pressure center at 30.5 inches over northern ontario lifts towards 
james bay. 




lsz263-160800-
lake superior from saxon harbor wi to upper entrance to portage
canal mi 5nm off shore to the us/canadian border including isle
royale national park-
1001 pm edt thu oct 15 2026

...gale warning in effect from 5 am edt friday through friday
afternoon...

.rest of tonight...north winds 5 to 15 knots increasing to gales
to 40 knots. rain. waves calm to 2 feet building to 8 to 11 feet
occasionally to 14 feet. 
.friday...north gales to 40 knots diminishing to 20 to 30 knots
late. a chance of rain showers through early afternoon. waves
building to 11 to 15 feet occasionally to 19 feet, then subsiding
to 5 to 8 feet occasionally to 10 feet. 
.friday night...northwest winds 15 to 25 knots becoming west 5 to
15 knots after midnight, then increasing to 20 to 30 knots late.
waves subsiding to 1 to 3 feet, then building to 3 to 6 feet
occasionally to 8 feet. 
.saturday...southwest gales to 35 knots. waves building to 8 to
11 feet occasionally to 14 feet, then subsiding to 6 to 9 feet
occasionally to 11 feet. 
.saturday night...southwest gales to 40 knots. waves subsiding to
5 to 8 feet occasionally to 10 feet, then building to 8 to
11 feet occasionally to 14 feet. 
.sunday...southwest gales to 40 knots. waves building to 9 to
12 feet occasionally to 15 feet, then subsiding to 6 to 9 feet
occasionally to 11 feet. 
.sunday night...southwest gales to 35 knots becoming west 10 to
20 knots after midnight. waves subsiding to 1 to 3 feet. 
.monday...west winds 5 to 15 knots. waves subsiding to calm to
2 feet. 
.tuesday...east winds 5 to 15 knots veering southeast. waves calm
to 2 feet. 

$$