fzus61 kbuf 260802
glflo 
expires:202604261500;;542724

open lake forecast for lake ontario
national weather service buffalo ny
402 am edt sun apr 26 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 30.3 inch high will build across the lower great lakes 
through monday. a 29.4 inch low over the great plains monday night 
will advance northeast into the upper great lakes later monday night 
into tuesday morning, while pushing a warm front across the lake. 
the low will head northeast to james bay tuesday night sending a 
cold front across the lake. an inverted trough averaging 29.7 inch 
inverted trough is expected across the lower great lakes wednesday 
through wednesday night. the trough/low will track to the coast of 
new england through thursday while also deepening to 29.5 inches.


loz063>065-261500-
lake ontario open waters from hamlin beach to the saint lawrence
river-
402 am edt sun apr 26 2026

.today...northeast winds 10 knots or less becoming northwest.
areas of fog early. waves 1 foot or less. 
.tonight...west winds less than 10 knots becoming northeast.
waves 1 foot or less. 
.monday...east winds 10 knots or less becoming northeast. waves
1 foot or less. 
.monday night...east winds 10 to 15 knots becoming southeast.
waves 1 to 3 feet. 
.tuesday...southeast winds 15 to 20 knots becoming south.
showers. waves 2 to 4 feet building to 3 to 5 feet, then
subsiding to 2 to 4 feet. 
.wednesday...southwest winds 5 to 15 knots becoming west. showers
likely. waves 1 to 3 feet. 
.thursday...west winds 10 to 15 knots becoming northwest 15 to
20 knots. a chance of showers during the day. waves 1 to 3 feet
building to 2 to 4 feet. 

$$

fzus61 kbuf 260802
glflo 
expires:202604261500;;542723

open lake forecast for lake ontario
national weather service buffalo ny
402 am edt sun apr 26 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 30.3 inch high will build across the lower great lakes 
through monday. a 29.4 inch low over the great plains monday night 
will advance northeast into the upper great lakes later monday night 
into tuesday morning, while pushing a warm front across the lake. 
the low will head northeast to james bay tuesday night sending a 
cold front across the lake. an inverted trough averaging 29.7 inch 
inverted trough is expected across the lower great lakes wednesday 
through wednesday night. the trough/low will track to the coast of 
new england through thursday while also deepening to 29.5 inches.


loz062-261500-
lake ontario open waters from the niagara river to hamlin beach-
402 am edt sun apr 26 2026

.today...northeast winds 5 to 10 knots becoming east. areas of
fog early. waves 2 feet or less. 
.tonight...northeast winds 10 knots or less becoming east. waves
1 foot or less. 
.monday...east winds 10 knots or less increasing to 10 to
15 knots. waves 2 feet or less. 
.monday night...east winds 15 to 20 knots becoming southeast
10 to 15 knots. waves 1 to 3 feet. 
.tuesday...southeast winds 5 to 15 knots becoming west. showers.
waves 1 to 3 feet. 
.wednesday...northwest winds 5 to 15 knots. showers likely. waves
1 to 2 feet. 
.thursday...northwest winds 10 to 15 knots. waves 1 to 3 feet. 

$$

fzus61 kcle 260736
glfle 
expires:202604261415;;541886

open lake forecast for lake erie
national weather service cleveland oh
336 am edt sun apr 26 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 of 30.20 inches to our north will track eastward 
overnight and exit the region monday. monday night through 
wednesday morning a low of 29.40 inches will track northeastward 
from the upper ms valley to hudson bay. a trough will linger 
over lake erie wednesday before high pressure builds across the 
north-central united states wednesday night through thursday.


lez162>164-261415-
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-
336 am edt sun apr 26 2026

.today...northeast winds around 10 knots becoming east. waves
1 to 3 feet. 
.tonight...east winds 10 to 15 knots becoming southeast. waves
1 to 3 feet. 
.monday...southeast winds 10 to 15 knots becoming east. waves
1 to 3 feet. 
.monday night...southeast winds 15 to 25 knots becoming south. a
chance of showers in the evening, then showers with a chance of
thunderstorms overnight. waves 1 to 3 feet building to 2 to
4 feet. 
.tuesday...south winds 15 to 25 knots becoming north and
diminishing to 5 to 15 knots. a chance of showers. waves 2 to
4 feet subsiding to 1 foot or less. 
.wednesday...north winds 10 to 15 knots. a chance of showers
during the day. waves 1 to 2 feet. 
.thursday...northwest winds 10 to 15 knots becoming north. waves
1 to 2 feet. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 260736
glfle 
expires:202604261415;;541888

open lake forecast for lake erie
national weather service cleveland oh
336 am edt sun apr 26 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 of 30.20 inches to our north will track eastward 
overnight and exit the region monday. monday night through 
wednesday morning a low of 29.40 inches will track northeastward 
from the upper ms valley to hudson bay. a trough will linger 
over lake erie wednesday before high pressure builds across the 
north-central united states wednesday night through thursday.


lez061-168-169-261415-
ripley to buffalo ny extending from 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-
336 am edt sun apr 26 2026

.today...northeast winds 5 to 10 knots. patchy dense fog this
morning. waves 2 feet or less. 
.tonight...northeast winds 5 to 10 knots becoming east. waves
2 feet or less. 
.monday...east winds 5 to 10 knots. waves 1 foot or less. 
.monday night...east winds 5 to 15 knots becoming south 15 to
20 knots. a chance of showers overnight. waves 1 to 3 feet
building to 3 to 5 feet. 
.tuesday...south winds 15 to 20 knots becoming northwest 5 to
15 knots. showers likely during the day, then a chance of showers
tuesday night. waves 3 to 5 feet subsiding to 1 to 2 feet. 
.wednesday...northeast winds 5 to 15 knots becoming northwest.
showers likely during the day. waves 2 feet or less. 
.thursday...northwest winds 5 to 15 knots. waves 1 to 2 feet. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 260736
glfle 
expires:202604261415;;541887

open lake forecast for lake erie
national weather service cleveland oh
336 am edt sun apr 26 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 of 30.20 inches to our north will track eastward 
overnight and exit the region monday. monday night through 
wednesday morning a low of 29.40 inches will track northeastward 
from the upper ms valley to hudson bay. a trough will linger 
over lake erie wednesday before high pressure builds across the 
north-central united states wednesday night through thursday.


lez165>167-261415-
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-
336 am edt sun apr 26 2026

.today...northeast winds 10 to 15 knots. patchy dense fog this
morning. waves 2 to 3 feet. 
.tonight...northeast winds 5 to 15 knots becoming southeast.
waves 1 to 3 feet. 
.monday...southeast winds 5 to 15 knots becoming east. waves 1 to
2 feet. 
.monday night...southeast winds 10 to 15 knots becoming south
15 to 20 knots. showers likely overnight. waves 1 to 3 feet
building to 3 to 5 feet. 
.tuesday...south winds 15 to 20 knots becoming northwest and
diminishing to 5 to 10 knots. showers likely during the day, then
a chance of showers tuesday night. waves 3 to 6 feet subsiding to
1 to 3 feet. 
.wednesday...north winds 5 to 15 knots becoming northwest. a
chance of showers during the day. waves 1 to 2 feet. 
.thursday...northwest winds 5 to 15 knots. waves 1 to 2 feet. 

winds and waves higher in and near thunderstorms.

$$

fzus63 kdtx 260803
glfsc 
expires:202604261615;;542776

lake st clair forecast
national weather service detroit/pontiac mi
403 am edt sun apr 26 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...broad high pressure, 30.20 inches, holds over the
great lakes through early monday. the next low, 29.30 inches,
lifts into the northern great lakes late monday-tuesday bringing
stronger southerly winds and the next storm chances.


lcz460-261615-
lake st clair-
403 am edt sun apr 26 2026

.today...northeast winds 5 to 10 knots veering to the southeast late
in the afternoon. partly sunny. waves 2 feet or less.
.tonight...east winds 5 to 10 knots increasing to 10 to 15 knots
after midnight. mostly clear. waves 2 feet or less.
.monday...southeast winds 10 to 15 knots increasing to 15 to 20
knots early in the afternoon. mostly sunny. waves 1 to 3 feet.
.monday night...southeast winds 15 to 20 knots. partly cloudy with a
chance of light showers ...then showers and a chance of
thunderstorms after midnight. waves 1 to 3 feet building to 2 to 4
feet after midnight.
.tuesday...south winds to 30 knots becoming southwest 15 to 20 knots
in the afternoon...then becoming northwest 10 to 15 knots in the
evening. mostly cloudy with light showers in the morning...then
partly cloudy in the afternoon and evening. waves 2 to 4 feet
subsiding to 1 to 3 feet in the afternoon and evening. a small craft
advisory may be needed.
.wednesday...north winds 10 to 15 knots. mostly cloudy. a chance of
light showers. waves 2 feet or less.
.thursday...north winds 10 to 15 knots. partly cloudy. waves 2 feet
or less.

$$

fzus63 kdtx 260800
glflh 
expires:202604261600;;542595

open lake forecast for lake huron
national weather service detroit/pontiac mi
400 am edt sun apr 26 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...broad high pressure, 30.20 inches, holds over the
great lakes through early monday. the next low, 29.30 inches,
lifts into the northern great lakes late monday-tuesday bringing
stronger southerly winds and the next storm chances.


lhz362-363-261600-
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-
400 am edt sun apr 26 2026

.today...north winds 5 to 10 knots veering to the northeast in
the afternoon. patchy dense fog in the morning. waves 2 feet or
less. 
.tonight...northeast winds 5 to 10 knots veering to the east
after midnight. waves 2 feet or less. 
.monday...southeast winds 10 to 15 knots increasing to 15 to
20 knots early in the afternoon. waves 1 to 3 feet building to
3 to 5 feet in the late morning and afternoon. 
.monday night...southeast winds 15 to 20 knots increasing to
30 knots with gusts to 35 knot gales. a chance of showers in the
evening...then showers after midnight. waves 4 to 6 feet building
to 10 to 14 feet. waves occasionally around 18 feet. 
.tuesday...southeast winds to 30 knots with gusts to 35 knot
gales becoming south 15 to 20 knots with gusts to around 30 knots
late in the morning...then becoming west 10 to 15 knots late in
the afternoon veering to the northwest late in the evening. a
chance of showers. waves 10 to 14 feet subsiding to 3 to 5 feet.
waves occasionally around 18 feet. 
.wednesday...northwest winds 5 to 10 knots increasing to 15 to
20 knots. waves 1 to 3 feet building to 3 to 5 feet . 
.thursday...northwest winds 15 to 20 knots decreasing to 10 to
15 knots. waves 3 to 5 feet. 


$$

fzus63 kdtx 260800
glflh 
expires:202604261600;;542596

open lake forecast for lake huron
national weather service detroit/pontiac mi
400 am edt sun apr 26 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...broad high pressure, 30.20 inches, holds over the
great lakes through early monday. the next low, 29.30 inches,
lifts into the northern great lakes late monday-tuesday bringing
stronger southerly winds and the next storm chances.


lhz462>464-261600-
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-
400 am edt sun apr 26 2026

.today...northeast winds 5 to 10 knots. waves 2 feet or less. 
.tonight...northeast winds 5 to 10 knots veering to the east
after midnight. waves 2 feet or less. 
.monday...southeast winds 10 to 15 knots. waves 2 to 4 feet. 
.monday night...southeast winds 15 to 20 knots increasing to
20 to 25 knots with gusts to around 30 knots in the late evening
and overnight. showers after midnight. waves 5 to 7 feet building
to 8 to 12 feet after midnight. waves occasionally around
15 feet. 
.tuesday...south winds to 30 knots becoming southwest 15 to
20 knots with gusts to around 30 knots late in the morning...then
becoming west 10 to 15 knots late in the afternoon becoming
northwest 5 to 10 knots late in the evening. a chance of showers.
waves 8 to 12 feet subsiding to 1 to 3 feet. waves occasionally
around 15 feet. 
.wednesday...north winds 10 to 15 knots. waves 1 to 3 feet
building to 2 to 4 feet. 
.thursday...northwest winds 15 to 20 knots decreasing to 5 to
10 knots. waves 2 to 4 feet subsiding to 1 to 3 feet . 


$$

fzus63 kdtx 260800
glflh 
expires:202604261600;;542594

open lake forecast for lake huron
national weather service detroit/pontiac mi
400 am edt sun apr 26 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...broad high pressure, 30.20 inches, holds over the
great lakes through early monday. the next low, 29.30 inches,
lifts into the northern great lakes late monday-tuesday bringing
stronger southerly winds and the next storm chances.


lhz361-261600-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
400 am edt sun apr 26 2026

.today...light and variable winds becoming east 5 to 10 knots in
the afternoon. patchy dense fog in the morning. waves 2 feet or
less. 
.tonight...east winds 5 to 10 knots. waves 1 to 3 feet. 
.monday...east winds 10 to 15 knots increasing to 20 to 25 knots
with gusts to around 30 knots. waves 2 to 4 feet building to 5 to
7 feet in the late morning and afternoon. waves occasionally
around 10 feet. 
.monday night...southeast winds 20 to 25 knots increasing to
30 knots after midnight. a chance of showers in the evening...
then showers after midnight. waves 8 to 12 feet. waves
occasionally around 15 feet. 
.tuesday...southeast winds 20 to 25 knots with gusts to around
30 knots veering to the south late in the morning...then becoming
west 15 to 20 knots late in the afternoon becoming northwest
10 to 15 knots late in the evening. a chance of showers in the
morning. waves 10 to 14 feet subsiding to 3 to 5 feet. waves
occasionally around 18 feet. 
.wednesday...northwest winds 5 to 10 knots increasing to 15 to
20 knots. waves 1 to 3 feet building to 2 to 4 feet . 
.thursday...northwest winds 10 to 15 knots increasing to 15 to
20 knots by midnight. waves 2 to 4 feet subsiding to 1 to 3 feet
in the late morning and early afternoon...then building to 3 to
5 feet . 


$$

fzus63 kmkx 260757
glflm 
expires:202604261515;;542399

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
257 am cdt sun apr 26 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...

generally easterly breezes expected this morning as high pressure
around 30.2 inches shifts eastward into southeast ontario. 
low pressure around 29.4 inches then moves from northeast kansas 
early monday to lake superior by early tuesday morning, bringing
winds around to southeasterly monday into monday night.
southeasterly winds will increase and become gusty around 30 kt
monday afternoon into monday night. a few gales are possible
during this time frame, although the cooler lake temperatures may
limit the risk for gales. breezy west winds will then develop 
behind the departing low by midday tuesday. lighter winds should 
then occur into the rest of next week as high pressure builds in.


lmz080-669-671-673-675-777-779-870-872-874-876-878-261515-
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-
257 am cdt sun apr 26 2026

sheboygan wi to pentwater mi south...

.today...east winds 5 to 10 kt becoming northeast 10 to 15 kt.
patchy fog. waves 1 to 3 ft. 
.tonight...northeast winds 10 to 15 kt becoming southeast 10 to
20 kt. patchy fog in the evening. waves 1 to 3 ft building to
3 to 5 ft. 
.monday...southeast winds 15 to 25 kt increasing to gales to
35 kt. rain showers likely in the afternoon. waves 4 to 6 ft
occasionally to 8 ft building to 7 to 10 ft occasionally to
13 ft. 
.monday night...south gales to 35 kt becoming southwest. showers
with a chance of thunderstorms in the evening, then chance of
showers overnight. waves 8 to 12 ft occasionally to 16 ft. 
.tuesday...west winds to 30 kt diminishing to 15 to 25 kt. waves
7 to 10 ft occasionally to 13 ft subsiding to 4 to 7 ft
occasionally to 9 ft. 
.tuesday night...northwest winds 10 to 15 kt becoming north.
waves 2 to 4 ft subsiding to 1 to 3 ft. 
.wednesday...north winds 10 to 20 kt. waves 2 to 4 ft. 
.thursday...north winds 10 to 15 kt increasing to 10 to 20 kt.
waves 1 to 2 ft.  

$$

fzus63 kmkx 260757
glflm 
expires:202604261515;;542398

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
257 am cdt sun apr 26 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...

generally easterly breezes expected this morning as high pressure
around 30.2 inches shifts eastward into southeast ontario. 
low pressure around 29.4 inches then moves from northeast kansas 
early monday to lake superior by early tuesday morning, bringing
winds around to southeasterly monday into monday night.
southeasterly winds will increase and become gusty around 30 kt
monday afternoon into monday night. a few gales are possible
during this time frame, although the cooler lake temperatures may
limit the risk for gales. breezy west winds will then develop 
behind the departing low by midday tuesday. lighter winds should 
then occur into the rest of next week as high pressure builds in.


lmz261-362-364-366-563-565-567-868-261515-
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-
257 am cdt sun apr 26 2026

sheboygan wi to pentwater mi north...

.today...east winds 5 to 10 kt becoming southeast late this
morning, then becoming east 10 to 15 kt early this afternoon
backing to northeast 10 to 20 kt late. waves 1 to 2 ft. 
.tonight...northeast winds 10 to 20 kt becoming southeast. patchy
dense fog in the evening. waves 2 to 4 ft building to 3 to 5 ft. 
.monday...southeast winds 15 to 25 kt increasing to gales to
35 kt. waves 4 to 6 ft occasionally to 8 ft building to 7 to
10 ft occasionally to 13 ft. 
.monday night...southeast gales to 35 kt becoming south. rain
showers with a chance of thunderstorms. waves 8 to 12 ft
occasionally to 16 ft. 
.tuesday...southwest winds to 30 kt becoming west. chance of rain
showers. waves 8 to 11 ft occasionally to 14 ft subsiding to 5 to
8 ft occasionally to 10 ft. 
.tuesday night...northwest winds 10 to 20 kt becoming north 10 to
15 kt. waves 2 to 4 ft subsiding to 1 to 3 ft. 
.wednesday...north winds 10 to 15 kt increasing to 10 to 20 kt.
waves 1 to 2 ft. 
.thursday...northwest winds 10 to 15 kt increasing to 10 to
20 kt. waves 1 to 2 ft.  

$$

fzus63 kmqt 260801
glfls 
expires:202604262000;;542645

open lake forecast for lake superior
national weather service marquette mi
401 am edt sun apr 26 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...

ridging resides over lake superior at 30.1 inches this morning as 
30.4 inch high pressure is over northern quebec. the pattern remains 
stable over lake superior today while a 29.4 inch colorado low 
develops. throughout monday, this low moves northeast and maintains 
strength, arriving in wisconsin monday night. the low then crosses 
lake superior tuesday morning, reaching james bay tuesday night. in 
the wake of the low, 30.2 inch high pressure builds over the 
canadian prairie, sending 30.1 inch high pressure over the lake 
wednesday. this high approaches the great lakes slowly thursday, 
residing over the lake friday at 30.2 inches.



lsz162-262000-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
401 am edt sun apr 26 2026 /301 am cdt sun apr 26 2026/

.early this morning...northeast winds 5 to 15 knots. patchy fog.
rain showers likely. waves calm to 2 feet. 
.today...northeast winds 5 to 15 knots increasing to 10 to
20 knots late. patchy fog through early afternoon. a chance of
rain showers. waves calm to 2 feet. 
.tonight...northeast winds 10 to 20 knots veering east late. a
slight chance of rain showers. waves building to 2 to 4 feet. 
.monday...east winds 15 to 25 knots becoming northeast 20 to
30 knots in the afternoon, then diminishing to 15 to 25 knots
late. rain showers. a slight chance of thunderstorms by mid
afternoon. waves building to 3 to 6 feet occasionally to 8 feet. 
.monday night...northeast winds 15 to 25 knots becoming northwest
20 to 30 knots after midnight. rain showers. waves subsiding to
3 to 5 feet occasionally to 7 feet. 
.tuesday...northwest winds 20 to 30 knots backing west by mid
afternoon. a chance of rain showers through early afternoon.
waves building to 3 to 6 feet occasionally to 8 feet, then
subsiding to 2 to 4 feet. 
.tuesday night...northwest winds 10 to 20 knots. waves subsiding
to calm to 2 feet. 
.wednesday...west winds 5 to 15 knots veering northwest. waves
calm to 2 feet. 
.thursday...northwest winds 5 to 15 knots veering north. waves
calm to 2 feet. 

$$

fzus63 kmqt 260801
glfls 
expires:202604262000;;542646

open lake forecast for lake superior
national weather service marquette mi
401 am edt sun apr 26 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...

ridging resides over lake superior at 30.1 inches this morning as 
30.4 inch high pressure is over northern quebec. the pattern remains 
stable over lake superior today while a 29.4 inch colorado low 
develops. throughout monday, this low moves northeast and maintains 
strength, arriving in wisconsin monday night. the low then crosses 
lake superior tuesday morning, reaching james bay tuesday night. in 
the wake of the low, 30.2 inch high pressure builds over the 
canadian prairie, sending 30.1 inch high pressure over the lake 
wednesday. this high approaches the great lakes slowly thursday, 
residing over the lake friday at 30.2 inches.



lsz263-262000-
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 sun apr 26 2026

.early this morning...east winds 5 to 15 knots. patchy fog. a
slight chance of rain showers. waves calm to 2 feet. 
.today...northeast winds 5 to 15 knots. patchy fog through early
afternoon. a chance of rain showers through early afternoon.
waves calm to 2 feet. 
.tonight...northeast winds 10 to 20 knots veering east after
midnight, then diminishing to 5 to 15 knots late. waves building
to 1 to 3 feet. 
.monday...east winds 15 to 25 knots increasing to 20 to 30 knots
late. a chance of rain showers through early afternoon, then rain
showers and a slight chance of thunderstorms by mid afternoon.
waves building to 6 to 9 feet occasionally to 11 feet. 
.monday night...east winds 20 to 30 knots backing northwest after
midnight. a slight chance of thunderstorms through midnight. rain
showers. waves building to 8 to 11 feet occasionally to 14 feet,
then subsiding to 5 to 8 feet occasionally to 10 feet. 
.tuesday...west winds 20 to 30 knots. a chance of rain showers.
waves subsiding to 4 to 8 feet occasionally to 10 feet. 
.tuesday night...northwest winds 10 to 20 knots diminishing to
5 to 15 knots after midnight. waves subsiding to 1 to 3 feet. 
.wednesday...west winds 5 to 15 knots veering northwest. waves
subsiding to calm to 2 feet. 
.thursday...northwest winds 5 to 15 knots veering north. waves
calm to 2 feet. 

$$

fzus63 kmqt 260801
glfls 
expires:202604262000;;542647

open lake forecast for lake superior
national weather service marquette mi
401 am edt sun apr 26 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...

ridging resides over lake superior at 30.1 inches this morning as 
30.4 inch high pressure is over northern quebec. the pattern remains 
stable over lake superior today while a 29.4 inch colorado low 
develops. throughout monday, this low moves northeast and maintains 
strength, arriving in wisconsin monday night. the low then crosses 
lake superior tuesday morning, reaching james bay tuesday night. in 
the wake of the low, 30.2 inch high pressure builds over the 
canadian prairie, sending 30.1 inch high pressure over the lake 
wednesday. this high approaches the great lakes slowly thursday, 
residing over the lake friday at 30.2 inches.



lsz264-262000-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
401 am edt sun apr 26 2026

.early this morning...east winds 5 to 15 knots. areas of dense
fog. a slight chance of rain showers. waves calm to 2 feet. 
.today...east winds 5 to 15 knots. a slight chance of rain
showers through early afternoon. patchy fog. waves calm to
2 feet. 
.tonight...northeast winds 5 to 15 knots veering east after
midnight, then increasing to 10 to 20 knots late. waves building
to 1 to 3 feet. 
.monday...southeast winds 15 to 25 knots increasing to 30 knots
with a few gale force gusts to 35 knots possible. rain showers
likely and a slight chance of thunderstorms by mid afternoon.
waves building to 7 to 10 feet occasionally to 13 feet. 
.monday night...southeast gales to 35 knots veering west after
midnight. a slight chance of thunderstorms through midnight. rain
showers. waves building to 10 to 14 feet occasionally to 18 feet,
then subsiding to 8 to 11 feet occasionally to 14 feet. 
.tuesday...west gales to 40 knots. a chance of rain showers.
waves subsiding to 3 to 6 feet occasionally to 8 feet. 
.tuesday night...northwest winds 15 to 25 knots diminishing to
10 to 20 knots after midnight. waves subsiding to 1 to 3 feet. 
.wednesday...northwest winds 5 to 15 knots. waves subsiding to
calm to 2 feet. 
.thursday...north winds 5 to 15 knots. waves calm to 2 feet. 

$$

fzus63 kmqt 260801
glfls 
expires:202604262000;;542648

open lake forecast for lake superior
national weather service marquette mi
401 am edt sun apr 26 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...

ridging resides over lake superior at 30.1 inches this morning as 
30.4 inch high pressure is over northern quebec. the pattern remains 
stable over lake superior today while a 29.4 inch colorado low 
develops. throughout monday, this low moves northeast and maintains 
strength, arriving in wisconsin monday night. the low then crosses 
lake superior tuesday morning, reaching james bay tuesday night. in 
the wake of the low, 30.2 inch high pressure builds over the 
canadian prairie, sending 30.1 inch high pressure over the lake 
wednesday. this high approaches the great lakes slowly thursday, 
residing over the lake friday at 30.2 inches.



lsz265-262000-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
401 am edt sun apr 26 2026

.early this morning...southeast winds 5 to 15 knots. areas of
dense fog. a slight chance of rain and snow showers. waves calm
to 2 feet. 
.today...southeast winds 10 to 20 knots backing east in the
afternoon. waves calm to 2 feet. 
.tonight...east winds 10 to 20 knots veering southeast after
midnight, then increasing to 15 to 25 knots late. waves building
to 1 to 3 feet. 
.monday...southeast winds 20 to 30 knots increasing to 30 knots
with a few gale force gusts to 40 knots possible in the
afternoon. a chance of rain showers and a slight chance of
thunderstorms by mid afternoon. waves building to 6 to 9 feet
occasionally to 11 feet. 
.monday night...southeast gales to 40 knots becoming south gales
to 35 knots after midnight. a slight chance of thunderstorms
through midnight. rain showers. waves building to 8 to 11 feet
occasionally to 14 feet, then subsiding to 5 to 8 feet
occasionally to 10 feet. 
.tuesday...west gales to 40 knots. a chance of rain showers.
waves building to 6 to 9 feet occasionally to 11 feet, then
subsiding to 3 to 6 feet occasionally to 8 feet. 
.tuesday night...northwest winds 20 to 30 knots diminishing to
15 to 25 knots after midnight. waves subsiding to 1 to 3 feet. 
.wednesday...northwest winds 10 to 20 knots. waves subsiding to
calm to 2 feet. 
.thursday...north winds 10 to 20 knots becoming northwest 5 to
15 knots. waves calm to 2 feet. 

$$

fzus63 kmqt 260801
glfls 
expires:202604262000;;542649

open lake forecast for lake superior
national weather service marquette mi
401 am edt sun apr 26 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...

ridging resides over lake superior at 30.1 inches this morning as 
30.4 inch high pressure is over northern quebec. the pattern remains 
stable over lake superior today while a 29.4 inch colorado low 
develops. throughout monday, this low moves northeast and maintains 
strength, arriving in wisconsin monday night. the low then crosses 
lake superior tuesday morning, reaching james bay tuesday night. in 
the wake of the low, 30.2 inch high pressure builds over the 
canadian prairie, sending 30.1 inch high pressure over the lake 
wednesday. this high approaches the great lakes slowly thursday, 
residing over the lake friday at 30.2 inches.



lsz266-262000-
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 sun apr 26 2026

.early this morning...southeast winds 5 to 15 knots. patchy fog.
a slight chance of rain showers. waves calm to 2 feet. 
.today...southeast winds 10 to 20 knots backing east in the
afternoon. patchy fog through early afternoon. waves calm to
2 feet. 
.tonight...east winds 10 to 20 knots veering southeast after
midnight, then increasing to 15 to 25 knots late. waves building
to 2 to 4 feet. 
.monday...southeast winds 20 to 30 knots increasing to gales to
45 knots in the afternoon. a chance of rain showers by mid
afternoon. waves building to 9 to 12 feet occasionally to
15 feet. 
.monday night...southeast gales to 45 knots becoming south gales
to 40 knots after midnight. a slight chance of thunderstorms
through midnight. rain showers. waves building to 10 to 14 feet
occasionally to 18 feet, then subsiding to 8 to 11 feet
occasionally to 14 feet. 
.tuesday...west gales to 45 knots. a chance of rain showers.
waves subsiding to 6 to 9 feet occasionally to 11 feet, then
building to 10 to 14 feet occasionally to 18 feet. 
.tuesday night...northwest winds 20 to 30 knots diminishing to
15 to 25 knots after midnight. waves subsiding to 2 to 4 feet. 
.wednesday...northwest winds 10 to 20 knots. waves subsiding to
calm to 2 feet. 
.thursday...northwest winds 10 to 20 knots. waves calm to 2 feet.

$$

fzus63 kmqt 260801
glfls 
expires:202604262000;;542650

open lake forecast for lake superior
national weather service marquette mi
401 am edt sun apr 26 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...

ridging resides over lake superior at 30.1 inches this morning as 
30.4 inch high pressure is over northern quebec. the pattern remains 
stable over lake superior today while a 29.4 inch colorado low 
develops. throughout monday, this low moves northeast and maintains 
strength, arriving in wisconsin monday night. the low then crosses 
lake superior tuesday morning, reaching james bay tuesday night. in 
the wake of the low, 30.2 inch high pressure builds over the 
canadian prairie, sending 30.1 inch high pressure over the lake 
wednesday. this high approaches the great lakes slowly thursday, 
residing over the lake friday at 30.2 inches.



lsz267-262000-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
401 am edt sun apr 26 2026

.early this morning...east winds 5 to 15 knots. patchy fog. waves
calm to 2 feet. 
.today...southeast winds 5 to 15 knots becoming east 10 to
20 knots in the afternoon. patchy fog through early afternoon.
waves calm to 2 feet. 
.tonight...southeast winds 10 to 20 knots increasing to 15 to
25 knots late. waves building to 1 to 3 feet. 
.monday...southeast winds 15 to 25 knots increasing to 30 knots
with a few gale force gusts to 40 knots possible in the
afternoon. waves building to 8 to 11 feet occasionally to
14 feet. 
.monday night...southeast gales to 45 knots. rain showers and a
slight chance of thunderstorms. waves building to 9 to 12 feet
occasionally to 15 feet, then subsiding to 7 to 10 feet
occasionally to 13 feet. 
.tuesday...west gales to 40 knots. rain showers likely through
early afternoon. waves subsiding to 6 to 9 feet occasionally to
11 feet, then building to 10 to 14 feet occasionally to 18 feet. 
.tuesday night...northwest winds 20 to 30 knots diminishing to
10 to 20 knots after midnight. waves subsiding to 2 to 4 feet. 
.wednesday...northwest winds 10 to 20 knots. waves subsiding to
calm to 2 feet. 
.thursday...northwest winds 10 to 20 knots veering north. waves
building to 1 to 3 feet, then subsiding to calm to 2 feet. 

$$