fzus61 kbuf 140802
glflo 
expires:202605141500;;533723

open lake forecast for lake ontario
national weather service buffalo ny
402 am edt thu may 14 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 29.6 inch low north of lake ontario will drift over 
eastern new york and new england today. a 30.0 inch high will then 
build from the central great lakes and ohio valley tonight to the 
lower great lakes and mid atlantic friday, then off the carolina 
coast saturday. a 29.3 inch low over the central plains will then 
push a warm front into the lower great lakes sunday and sunday 
night.


loz062-141500-
lake ontario open waters from the niagara river to hamlin beach-
402 am edt thu may 14 2026

.today...west winds 5 to 15 knots becoming northwest. a chance of
showers early. a chance of showers with patchy drizzle this
afternoon. waves 1 to 3 feet. 
.tonight...northwest winds 5 to 10 knots. waves 2 feet or less. 
.friday...northwest winds 5 to 10 knots becoming southwest. waves
1 foot or less. 
.friday night...southwest winds 5 to 15 knots. waves 1 to 2 feet.
.saturday...southwest winds 10 to 15 knots. showers likely
saturday night. waves 1 to 3 feet. 
.sunday...west winds 10 knots or less becoming east. a chance of
showers during the day. waves 1 foot or less. 
.monday...east winds 5 to 15 knots becoming south. waves 1 to
2 feet. 

$$

fzus61 kbuf 140802
glflo 
expires:202605141500;;533724

open lake forecast for lake ontario
national weather service buffalo ny
402 am edt thu may 14 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 29.6 inch low north of lake ontario will drift over 
eastern new york and new england today. a 30.0 inch high will then 
build from the central great lakes and ohio valley tonight to the 
lower great lakes and mid atlantic friday, then off the carolina 
coast saturday. a 29.3 inch low over the central plains will then 
push a warm front into the lower great lakes sunday and sunday 
night.


loz063>065-141500-
lake ontario open waters from hamlin beach to the saint lawrence
river-
402 am edt thu may 14 2026

.today...southwest winds 10 knots or less becoming northwest.
patchy drizzle this afternoon. waves 1 to 3 feet subsiding to
1 foot or less. 
.tonight...northwest winds 10 knots or less. a chance of showers
late in the evening. showers likely after midnight, then a chance
of showers late. waves 2 feet or less. 
.friday...northwest winds 5 to 15 knots becoming west. waves
2 feet or less. 
.friday night...southwest winds 5 to 10 knots becoming south.
waves 2 feet or less. 
.saturday...south winds 5 to 15 knots becoming southwest. showers
likely saturday night. waves 2 feet or less. 
.sunday...west winds 5 to 15 knots becoming east. showers likely
during the day. waves 2 feet or less. 
.monday...east winds 5 to 15 knots becoming south. waves 2 feet
or less. 

$$

fzus61 kcle 140753
glfle 
expires:202605141415;;533264

open lake forecast for lake erie
national weather service cleveland oh
353 am edt thu may 14 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 trough averaging 29.90 inches over lake erie this morning will 
give way to high pressure of 30.10 inches by tonight. the high will 
move east friday night to allow a warm front to lift across the lake 
friday night into saturday. a nearly stationary boundary of 29.90 
inches will settle near lake erie on sunday before lifting north as 
a warm front sunday night. 


lez162-163-141415-
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-
353 am edt thu may 14 2026

.today...northwest winds 15 to 20 knots diminishing to 10 to
15 knots. waves 1 to 3 feet. 
.tonight...north winds 5 to 10 knots becoming light and variable.
waves 1 foot or less. 
.friday...south winds 10 knots or less becoming southwest. waves
1 foot or less. 
.friday night...southwest winds 5 to 15 knots becoming south.
waves 2 feet or less. 
.saturday...south winds 10 to 15 knots becoming southwest.
showers likely with a chance of thunderstorms during the day,
then showers likely saturday night. waves 1 to 2 feet. 
.sunday...southwest winds 10 knots or less becoming southeast. a
chance of showers during the day. waves 2 feet or less. 
.monday...south winds 10 to 15 knots becoming southwest. waves
1 to 3 feet. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 140753
glfle 
expires:202605141415;;533266

open lake forecast for lake erie
national weather service cleveland oh
353 am edt thu may 14 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 trough averaging 29.90 inches over lake erie this morning will 
give way to high pressure of 30.10 inches by tonight. the high will 
move east friday night to allow a warm front to lift across the lake 
friday night into saturday. a nearly stationary boundary of 29.90 
inches will settle near lake erie on sunday before lifting north as 
a warm front sunday night. 


lez061-141415-
ripley to buffalo ny extending from 5nm off shoreline to us-
canadian border-
353 am edt thu may 14 2026

.today...west winds 5 to 15 knots becoming northwest. a slight
chance of showers this morning, then a chance of showers this
afternoon. waves 2 to 4 feet subsiding to 1 to 2 feet. 
.tonight...northwest winds 5 to 10 knots. a slight chance of
showers early. waves 1 foot or less. 
.friday...northwest winds 10 knots or less becoming southwest.
waves 1 foot or less. 
.friday night...southwest winds 5 to 10 knots becoming south.
waves 1 foot or less. 
.saturday...south winds around 10 knots becoming southwest. a
chance of showers during the day, then showers likely with a
chance of thunderstorms saturday night. waves 1 to 2 feet. 
.sunday...southwest winds 10 knots or less becoming east. waves
2 feet or less. 
.monday...southeast winds 10 knots or less becoming south. waves
2 feet or less. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 140753
glfle 
expires:202605141415;;533265

open lake forecast for lake erie
national weather service cleveland oh
353 am edt thu may 14 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 trough averaging 29.90 inches over lake erie this morning will 
give way to high pressure of 30.10 inches by tonight. the high will 
move east friday night to allow a warm front to lift across the lake 
friday night into saturday. a nearly stationary boundary of 29.90 
inches will settle near lake erie on sunday before lifting north as 
a warm front sunday night. 


lez164>169-141415-
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-
conneaut oh to ripley ny beyond 5 nm off shoreline to us-
canadian border-
353 am edt thu may 14 2026

.today...northwest winds 15 to 20 knots diminishing to 10 to
15 knots. a chance of showers this morning, then a slight chance
of showers this afternoon. waves 3 to 5 feet subsiding to 2 to
4 feet. 
.tonight...northwest winds 5 to 15 knots. waves 1 to 3 feet. 
.friday...northwest winds 10 knots or less becoming southwest.
waves 1 foot or less. 
.friday night...south winds 5 to 15 knots. waves 2 feet or less. 
.saturday...south winds 10 to 15 knots becoming southwest.
showers likely with a chance of thunderstorms saturday night.
waves 1 to 3 feet. 
.sunday...southwest winds 10 knots or less becoming southeast.
waves 2 feet or less. 
.monday...south winds 5 to 15 knots. waves 1 to 3 feet. 

winds and waves higher in and near thunderstorms.

$$

fzus63 kdtx 140744
glfsc 
expires:202605141545;;533096

lake st clair forecast
national weather service detroit/pontiac mi
344 am edt thu may 14 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, 30.10 inches, expands into the great
lakes and ohio valley today. dry conditions and subsiding
northwest flow expected before light winds back to the south
early friday morning.


lcz460-141545-
lake st clair-
344 am edt thu may 14 2026

.today...northwest winds 15 to 20 knots becoming north 10 to 15
knots late in the afternoon. partly sunny. waves 1 to 3 feet.
.tonight...north winds 10 to 15 knots becoming northeast 5 to 10
knots late in the evening...then becoming light and variable after
midnight. mostly clear. waves 2 feet or less.
.friday...light and variable winds becoming south 10 to 15 knots.
partly sunny. waves 2 feet or less.
.friday night...south winds 10 to 15 knots. partly cloudy. waves 2
feet or less.
.saturday...southwest winds 10 to 15 knots. partly cloudy. a chance
of light showers. a chance of thunderstorms in the afternoon and
evening. light showers likely in the evening. waves 2 feet or less.
.sunday...east winds 10 to 15 knots. partly cloudy. light showers
likely. waves 2 feet or less.
.monday...south winds 15 to 20 knots. partly cloudy. a chance of
showers. waves 1 to 3 feet.

$$

fzus63 kdtx 140742
glflh 
expires:202605141545;;533067

open lake forecast for lake huron
national weather service detroit/pontiac mi
342 am edt thu may 14 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, 30.10 inches, expands into the great
lakes and ohio valley today. dry conditions and subsiding
northwest flow expected before light winds back to the south
early friday morning.


lhz361-362-141545-
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-
342 am edt thu may 14 2026

.today...northwest winds around 20 knots decreasing to 10 to 15 
knots in the afternoon. waves 3 to 5 feet. 
.tonight...west winds 5 to 10 knots in the evening becoming light
and variable. waves 2 to 4 feet subsiding to 2 feet or less in
the late evening and overnight. 
.friday...south winds 5 to 10 knots becoming southeast 15 to
20 knots. waves 2 feet or less building to 4 to 6 feet. waves
occasionally around 8 feet. 
.friday night...south winds 15 to 20 knots. waves 5 to 7 feet.
waves occasionally around 10 feet. 
.saturday...south winds 10 to 15 knots becoming southwest 5 to
10 knots late in the afternoon...then veering to the west late in
the evening. a chance of showers. waves 3 to 5 feet. 
.sunday...northwest winds 5 to 10 knots veering to the north
until early evening...then becoming east 10 to 15 knots by
midnight. a chance of. waves 1 to 3 feet building to 6 to 9 feet.
waves occasionally around 12 feet. 
.monday...southeast winds 15 to 20 knots. a chance of showers. a
chance of thunderstorms early in the evening. waves 6 to 9 feet.
waves occasionally around 12 feet. 


$$

fzus63 kdtx 140742
glflh 
expires:202605141545;;533068

open lake forecast for lake huron
national weather service detroit/pontiac mi
342 am edt thu may 14 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, 30.10 inches, expands into the great
lakes and ohio valley today. dry conditions and subsiding
northwest flow expected before light winds back to the south
early friday morning.


lhz363-462>464-141545-
lake huron from sturgeon point to alabaster mi beyond 5nm off
shore-
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-
342 am edt thu may 14 2026

.today...north winds 15 to 25 knots decreasing to 10 to 20 knots 
late in the afternoon. waves 4 to 6 feet. 
.tonight...north winds 10 to 15 knots decreasing to 5 to 10 knots
late in the evening...then becoming light and variable after
midnight. waves 3 to 5 feet subsiding to 1 to 3 feet after
midnight. waves occasionally around 8 feet. 
.friday...light and variable winds becoming south 5 to 10 knots
in the late morning and early afternoon...then increasing to
10 to 15 knots early in the afternoon. waves 1 to 3 feet building
to 2 to 4 feet early in the afternoon. 
.friday night...south winds 10 to 15 knots increasing to 15 to
20 knots by midnight...then decreasing to 10 to 15 knots after
midnight. waves 3 to 5 feet. 
.saturday...south winds 10 to 15 knots. a chance of showers late
in the morning. waves 3 to 5 feet. 
.sunday...north winds 5 to 10 knots becoming east 10 to 15 knots
by midnight. a chance of showers by midnight. waves 1 to 3 feet
building to 2 to 4 feet by midnight. 
.monday...southeast winds 10 to 15 knots becoming south 15 to
20 knots. a chance of showers early in the morning. a chance of
showers . waves 4 to 6 feet. waves occasionally around 8 feet. 


$$

fzus63 kmkx 140825
glflm 
expires:202605141515;;535327

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
325 am cdt thu may 14 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...

northwest winds will weaken later this morning into this 
afternoon, as high pressure around 30.1 inches moves southeast 
over lake michigan. the high will move southeast tonight, with 
breezy southerly winds developing on friday and lingering into 
friday night. a few gales are possible friday afternoon and 
evening in northern portions of the lake. 

southwest to south winds may linger into saturday, before 
northeast to east winds develop saturday night into sunday and 
increase, as a warm front develops to the south of the region. the
increasing winds should then become southeast sunday night and 
south into monday, as the warm front moves northward across the 
region. showers and thunderstorms may accompany the warm front as 
it moves northward sunday night into monday.


lmz080-669-671-673-675-777-779-870-872-874-876-878-141515-
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-
325 am cdt thu may 14 2026

sheboygan wi to pentwater mi south...

.today...northwest winds 10 to 20 kt becoming west 10 to 15 kt.
waves 1 to 3 ft. 
.tonight...southeast winds 5 to 10 kt becoming south 10 to 20 kt.
slight chance of rain showers overnight. waves 1 to 3 ft. 
.friday...south winds 15 to 25 kt increasing to 30 kt. waves 3 to
5 ft building to 6 to 9 ft occasionally to 12 ft. 
.friday 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 7 ft
occasionally to 9 ft. 
.saturday...south winds 10 to 15 kt. chance of showers. waves
3 to 5 ft subsiding to 2 to 4 ft. 
.saturday night...south winds 5 to 10 kt backing to east 10 to
15 kt. waves 1 to 3 ft. 
.sunday...east winds 10 to 20 kt. chance of rain showers. waves
2 to 4 ft. 
.monday...south winds to 30 kt. chance of showers. waves 6 to
9 ft occasionally to 12 ft.  

$$

fzus63 kmkx 140825
glflm 
expires:202605141515;;535326

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
325 am cdt thu may 14 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...

northwest winds will weaken later this morning into this 
afternoon, as high pressure around 30.1 inches moves southeast 
over lake michigan. the high will move southeast tonight, with 
breezy southerly winds developing on friday and lingering into 
friday night. a few gales are possible friday afternoon and 
evening in northern portions of the lake. 

southwest to south winds may linger into saturday, before 
northeast to east winds develop saturday night into sunday and 
increase, as a warm front develops to the south of the region. the
increasing winds should then become southeast sunday night and 
south into monday, as the warm front moves northward across the 
region. showers and thunderstorms may accompany the warm front as 
it moves northward sunday night into monday.


lmz261-362-364-366-563-565-567-868-141515-
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-
325 am cdt thu may 14 2026

sheboygan wi to pentwater mi north...

.today...northwest winds 10 to 15 kt backing to southwest. waves
1 to 2 ft. 
.tonight...south winds 10 to 15 kt increasing to 10 to 20 kt.
waves 1 to 2 ft building to 1 to 3 ft. 
.friday...south winds to 30 kt. waves 3 to 5 ft building to 7 to
10 ft occasionally to 13 ft. 
.friday night...south winds to 30 kt. waves 7 to 10 ft
occasionally to 13 ft. 
.saturday...southwest winds 15 to 25 kt. waves 4 to 7 ft
occasionally to 9 ft subsiding to 3 to 5 ft. 
.saturday night...north winds 10 to 20 kt becoming northeast
10 to 15 kt. waves 2 to 4 ft subsiding to 1 to 3 ft. 
.sunday...northeast winds 10 to 20 kt. waves 2 to 4 ft. 
.monday...south winds to 30 kt. chance of rain showers. waves
7 to 10 ft occasionally to 13 ft.  

$$

fzus63 kmqt 140801
glfls 
expires:202605142000;;533620

open lake forecast for lake superior
national weather service marquette mi
401 am edt thu may 14 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... 

30.1 inch ridging over lake superior today will be pressed southeast 
tonight into friday as a 29.1 inch low moves from the canadian 
prairies to northern ontario. this low is expected to bring 
troughing of 29.6 inches over lake superior friday and friday night 
as it tracks to near james bay at 29.3 inches by saturday morning. 
ridging of 30.1 inches builds over the lake from northern ontario 
saturday night into sunday, followed by another 29.7 inch trough 
extending from the central plains early next week, with high 
pressure building back into the region tuesday night.



lsz264-142000-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
401 am edt thu may 14 2026

.early this morning...northeast winds less than 10 knots. waves
calm to 2 feet. 
.today...east winds less than 10 knots becoming southeast 5 to
15 knots in the afternoon, then increasing to 10 to 20 knots
late. waves building to 1 to 3 feet. 
.tonight...southeast winds 20 to 30 knots becoming south 15 to
25 knots after midnight. a slight chance of rain showers through
midnight, then rain showers likely after midnight. waves building
to 3 to 6 feet occasionally to 8 feet. 
.friday...south winds 15 to 25 knots veering southwest in the
afternoon. a slight chance of rain showers through early
afternoon. waves subsiding to 3 to 5 feet occasionally to 7 feet.
.friday night...southwest winds 15 to 25 knots. waves 3 to 5 feet
occasionally to 7 feet. 
.saturday...west winds 15 to 25 knots. waves building to 3 to
6 feet occasionally to 8 feet. 
.saturday night...north winds 5 to 15 knots veering northeast
after midnight. waves subsiding to calm to 2 feet. 
.sunday...east winds 10 to 20 knots increasing to gales to
40 knots. rain showers likely and a chance of thunderstorms.
waves building to 4 to 7 feet occasionally to 9 feet. 
.monday...east gales to 40 knots becoming northwest 15 to
25 knots. rain showers. waves building to 6 to 9 feet
occasionally to 11 feet, then subsiding to 3 to 6 feet
occasionally to 8 feet. 

$$

fzus63 kmqt 140801
glfls 
expires:202605142000;;533621

open lake forecast for lake superior
national weather service marquette mi
401 am edt thu may 14 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... 

30.1 inch ridging over lake superior today will be pressed southeast 
tonight into friday as a 29.1 inch low moves from the canadian 
prairies to northern ontario. this low is expected to bring 
troughing of 29.6 inches over lake superior friday and friday night 
as it tracks to near james bay at 29.3 inches by saturday morning. 
ridging of 30.1 inches builds over the lake from northern ontario 
saturday night into sunday, followed by another 29.7 inch trough 
extending from the central plains early next week, with high 
pressure building back into the region tuesday night.



lsz265-142000-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
401 am edt thu may 14 2026

.early this morning...northwest winds 5 to 15 knots. waves calm
to 2 feet. 
.today...east winds 5 to 15 knots becoming southeast 10 to
20 knots late. waves building to 1 to 3 feet. 
.tonight...southeast winds 15 to 25 knots veering south after
midnight. a chance of rain showers after midnight. waves building
to 2 to 4 feet, then subsiding to 1 to 3 feet. 
.friday...south winds 15 to 25 knots veering southwest late. a
chance of showers. waves subsiding to 1 to 3 feet. 
.friday night...southwest winds 10 to 20 knots increasing to
15 to 25 knots after midnight. waves building to 2 to 4 feet. 
.saturday...west winds 15 to 25 knots. waves subsiding to 1 to
3 feet, then building to 2 to 4 feet. 
.saturday night...north winds 10 to 20 knots. waves subsiding to
calm to 2 feet. 
.sunday...east winds 10 to 20 knots increasing to 20 to 30 knots.
rain showers likely and a chance of thunderstorms. waves building
to 3 to 6 feet occasionally to 8 feet. 
.monday...southeast gales to 35 knots becoming west 15 to
25 knots. rain showers. waves building to 5 to 8 feet
occasionally to 10 feet, then subsiding to 2 to 4 feet. 

$$

fzus63 kmqt 140801
glfls 
expires:202605142000;;533622

open lake forecast for lake superior
national weather service marquette mi
401 am edt thu may 14 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... 

30.1 inch ridging over lake superior today will be pressed southeast 
tonight into friday as a 29.1 inch low moves from the canadian 
prairies to northern ontario. this low is expected to bring 
troughing of 29.6 inches over lake superior friday and friday night 
as it tracks to near james bay at 29.3 inches by saturday morning. 
ridging of 30.1 inches builds over the lake from northern ontario 
saturday night into sunday, followed by another 29.7 inch trough 
extending from the central plains early next week, with high 
pressure building back into the region tuesday night.



lsz266-142000-
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-
401 am edt thu may 14 2026

.early this morning...north winds 5 to 15 knots. waves 1 to
3 feet subsiding to calm to 2 feet. 
.today...northeast winds 5 to 15 knots veering southeast in the
afternoon. waves calm to 2 feet. 
.tonight...southeast winds 15 to 25 knots becoming south 20 to
30 knots after midnight. a chance of rain showers after midnight.
waves building to 3 to 6 feet occasionally to 8 feet. 
.friday...south winds 20 to 30 knots. a chance of rain showers.
waves building to 4 to 7 feet occasionally to 9 feet, then
subsiding to 3 to 6 feet occasionally to 8 feet. 
.friday night...south winds 20 to 30 knots veering southwest
after midnight. waves subsiding to 3 to 6 feet occasionally to
8 feet. 
.saturday...west winds 15 to 25 knots. waves subsiding to 3 to
5 feet occasionally to 7 feet. 
.saturday night...north winds 15 to 25 knots diminishing to 10 to
20 knots after midnight. waves subsiding to 1 to 3 feet. 
.sunday...northeast winds 5 to 15 knots becoming east gales to
40 knots. rain showers likely. waves subsiding to calm to 2 feet,
then building to 4 to 7 feet occasionally to 9 feet. 
.monday...southeast gales to 45 knots becoming south 20 to
30 knots. rain showers. waves building to 6 to 9 feet
occasionally to 11 feet, then subsiding to 3 to 6 feet
occasionally to 8 feet. 

$$

fzus63 kmqt 140801
glfls 
expires:202605142000;;533623

open lake forecast for lake superior
national weather service marquette mi
401 am edt thu may 14 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... 

30.1 inch ridging over lake superior today will be pressed southeast 
tonight into friday as a 29.1 inch low moves from the canadian 
prairies to northern ontario. this low is expected to bring 
troughing of 29.6 inches over lake superior friday and friday night 
as it tracks to near james bay at 29.3 inches by saturday morning. 
ridging of 30.1 inches builds over the lake from northern ontario 
saturday night into sunday, followed by another 29.7 inch trough 
extending from the central plains early next week, with high 
pressure building back into the region tuesday night.



lsz267-142000-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
401 am edt thu may 14 2026

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

$$

fzus63 kmqt 140801
glfls 
expires:202605142000;;533618

open lake forecast for lake superior
national weather service marquette mi
401 am edt thu may 14 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... 

30.1 inch ridging over lake superior today will be pressed southeast 
tonight into friday as a 29.1 inch low moves from the canadian 
prairies to northern ontario. this low is expected to bring 
troughing of 29.6 inches over lake superior friday and friday night 
as it tracks to near james bay at 29.3 inches by saturday morning. 
ridging of 30.1 inches builds over the lake from northern ontario 
saturday night into sunday, followed by another 29.7 inch trough 
extending from the central plains early next week, with high 
pressure building back into the region tuesday night.



lsz162-142000-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
401 am edt thu may 14 2026 /301 am cdt thu may 14 2026/

.early this morning...east winds 5 to 15 knots. waves calm to
2 feet. 
.today...east winds 5 to 15 knots increasing to 15 to 25 knots.
waves building to 2 to 4 feet, then subsiding to 1 to 3 feet. 
.tonight...east winds 10 to 20 knots becoming south 15 to
25 knots after midnight. a chance of rain showers. waves building
to 3 to 5 feet occasionally to 7 feet, then subsiding to 2 to
4 feet. 
.friday...southwest winds 15 to 25 knots increasing to 20 to
30 knots in the afternoon. waves subsiding to 3 to 6 feet
occasionally to 8 feet. 
.friday night...southwest winds 15 to 25 knots becoming west
10 to 20 knots after midnight. waves subsiding to 1 to 3 feet. 
.saturday...west winds 10 to 20 knots. waves building to 2 to
4 feet, then subsiding to calm to 2 feet. 
.saturday night...north winds 5 to 15 knots veering northeast
after midnight. waves calm to 2 feet. 
.sunday...northeast gales to 35 knots. a chance of rain showers.
a chance of thunderstorms. rain showers. waves building to 7 to
10 feet occasionally to 13 feet, then subsiding to 5 to 8 feet
occasionally to 10 feet. 
.monday...northeast winds 20 to 30 knots becoming northwest 10 to
20 knots. rain showers. waves subsiding to 2 to 4 feet. 

$$

fzus63 kmqt 140801
glfls 
expires:202605142000;;533619

open lake forecast for lake superior
national weather service marquette mi
401 am edt thu may 14 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... 

30.1 inch ridging over lake superior today will be pressed southeast 
tonight into friday as a 29.1 inch low moves from the canadian 
prairies to northern ontario. this low is expected to bring 
troughing of 29.6 inches over lake superior friday and friday night 
as it tracks to near james bay at 29.3 inches by saturday morning. 
ridging of 30.1 inches builds over the lake from northern ontario 
saturday night into sunday, followed by another 29.7 inch trough 
extending from the central plains early next week, with high 
pressure building back into the region tuesday night.



lsz263-142000-
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-
401 am edt thu may 14 2026

.early this morning...east winds less than 10 knots. waves calm
to 2 feet. 
.today...east winds less than 10 knots increasing to 10 to
20 knots. waves building to 1 to 3 feet. 
.tonight...southeast winds 15 to 25 knots veering south after
midnight, then increasing to 20 to 30 knots late. a chance of
rain showers through midnight. rain showers likely after
midnight. waves building to 3 to 6 feet occasionally to 8 feet. 
.friday...southwest winds 15 to 25 knots increasing to 20 to
30 knots in the afternoon. waves 3 to 6 feet occasionally to
8 feet. 
.friday night...southwest winds 15 to 25 knots diminishing to
10 to 20 knots after midnight. waves subsiding to 3 to 5 feet
occasionally to 7 feet. 
.saturday...west winds 15 to 25 knots. waves subsiding to 2 to
4 feet. 
.saturday night...northeast winds 5 to 15 knots. waves subsiding
to calm to 2 feet. 
.sunday...northeast winds 20 to 30 knots becoming east gales to
35 knots. rain showers likely and a chance of thunderstorms.
waves building to 4 to 8 feet occasionally to 10 feet. 
.monday...east gales to 35 knots becoming west 15 to 25 knots.
rain showers. waves building to 5 to 8 feet occasionally to
10 feet, then subsiding to 3 to 6 feet occasionally to 8 feet. 

$$