fzus63 kdtx 260142
glflh 
expires:202604260945;;527232

open lake forecast for lake huron
national weather service detroit/pontiac mi
942 pm edt sat apr 25 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.


lhz361-260945-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
942 pm edt sat apr 25 2026

.rest of tonight...light and variable winds. waves 2 feet or
less. 
.sunday...light and variable winds becoming east 5 to 10 knots in
the late morning and afternoon. patchy fog in the morning. waves
2 feet or less. 
.sunday night...east winds 5 to 10 knots increasing to 10 to
15 knots after midnight. 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 becoming south 15 to 20 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 10 to 14 feet subsiding to 3 to 5 feet. waves occasionally
around 18 feet. 
.wednesday...northwest winds 5 to 10 knots increasing to 10 to
15 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 . 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 kdtx 260142
glflh 
expires:202604260945;;527233

open lake forecast for lake huron
national weather service detroit/pontiac mi
942 pm edt sat apr 25 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.


lhz362-363-260945-
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-
942 pm edt sat apr 25 2026

.rest of tonight...north winds 5 to 10 knots. waves 1 to 3 feet. 
.sunday...north winds 5 to 10 knots veering to the northeast in
the afternoon. patchy dense fog in the morning. waves 2 feet or
less. 
.sunday night...north winds 5 to 10 knots veering to the east in
the late evening and overnight. waves 2 feet or less. 
.monday...southeast winds 10 to 15 knots. 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 8 to 12 feet in the late evening and overnight. waves
occasionally around 15 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 southwest 10 to 15 knots late
in the afternoon becoming west 5 to 10 knots late in the evening.
showers in the morning...then a chance of showers late 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 10 to
15 knots. waves 1 to 3 feet building to 3 to 5 feet . 
.thursday...northwest winds 10 to 15 knots decreasing to 5 to
10 knots early in the evening...then increasing to 10 to 15 knots
by midnight. waves 3 to 5 feet. 


$$

fzus63 kdtx 260142
glflh 
expires:202604260945;;527234

open lake forecast for lake huron
national weather service detroit/pontiac mi
942 pm edt sat apr 25 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>464-260945-
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-
942 pm edt sat apr 25 2026

.rest of tonight...north winds 10 to 15 knots becoming northeast
5 to 10 knots after midnight. waves 1 to 3 feet. 
.sunday...northeast winds 5 to 10 knots. waves 2 feet or less. 
.sunday night...northeast winds 5 to 10 knots veering to the
southeast after midnight. waves 2 feet or less. 
.monday...southeast winds 10 to 15 knots. waves 1 to 3 feet
building to 2 to 4 feet early in the afternoon. 
.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 4 to 6 feet building
to 6 to 9 feet in the late evening and overnight. waves
occasionally around 12 feet. 
.tuesday...south winds 20 to 25 knots with gusts to around
30 knots decreasing to 15 to 20 knots late in the morning...then
becoming west 10 to 15 knots late in the afternoon decreasing to
5 to 10 knots late in the evening. showers in the morning...then
a chance of showers late in the morning. waves 8 to 12 feet
subsiding to 1 to 3 feet. waves occasionally around 15 feet. 
.wednesday...north winds 5 to 10 knots increasing to 10 to
15 knots. waves 1 to 3 feet building to 2 to 4 feet. 
.thursday...northwest winds 10 to 15 knots becoming north 5 to
10 knots . waves 2 to 4 feet subsiding to 1 to 3 feet . 


$$

fzus63 kmkx 260148
glflm 
expires:202604260930;;527369

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
848 pm cdt sat apr 25 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...

east to northeast winds are expected to develop overnight into 
sunday, as high pressure around 30.2 inches shifts eastward into
southeast ontario. low pressure around 29.4 inches is then expected
to move from northeast kansas early monday to lake superior by 
early tuesday morning. winds will increase monday into monday 
night out of the south to southeast ahead of the low. the cooler 
lake temperatures may limit the risk for gales across the lake
during this time. breezy west to northwest winds will then 
develop behind the departing low by later tuesday. lighter winds
should then occur into the rest of next week.


lmz261-362-364-366-563-565-567-868-260930-
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-
848 pm cdt sat apr 25 2026

sheboygan wi to pentwater mi north...

.rest of tonight...northeast winds 10 to 15 kt becoming east 5 to
10 kt. waves 1 to 3 ft. 
.sunday...east winds 5 to 10 kt becoming northeast 10 to 15 kt.
patchy fog in the morning. waves 1 to 2 ft. 
.sunday night...northeast winds 10 to 20 kt becoming southeast.
waves 2 to 4 ft building to 3 to 5 ft. 
.monday...southeast winds to 30 kt. waves 6 to 9 ft occasionally
to 12 ft. 
.monday night...southeast winds to 30 kt becoming south. rain
showers with a chance of thunderstorms in the evening, then rain
showers overnight. waves 7 to 10 ft occasionally to 13 ft. 
.tuesday...southwest winds to 30 kt becoming west. waves 6 to
9 ft occasionally to 12 ft. 
.tuesday night...northwest winds 10 to 20 kt becoming north 10 to
15 kt. waves 3 to 5 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 kmkx 260148
glflm 
expires:202604260930;;527370

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
848 pm cdt sat apr 25 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...

east to northeast winds are expected to develop overnight into 
sunday, as high pressure around 30.2 inches shifts eastward into
southeast ontario. low pressure around 29.4 inches is then expected
to move from northeast kansas early monday to lake superior by 
early tuesday morning. winds will increase monday into monday 
night out of the south to southeast ahead of the low. the cooler 
lake temperatures may limit the risk for gales across the lake
during this time. breezy west to northwest winds will then 
develop behind the departing low by later tuesday. lighter winds
should then occur into the rest of next week.


lmz080-669-671-673-675-777-779-870-872-874-876-878-260930-
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-
848 pm cdt sat apr 25 2026

sheboygan wi to pentwater mi south...

.rest of tonight...north winds 10 to 20 kt veering to east 10 to
15 kt. waves 2 to 4 ft. 
.sunday...east winds 10 to 15 kt becoming northeast. patchy fog
in the morning. waves 1 to 3 ft subsiding to 1 to 2 ft. 
.sunday night...northeast winds 10 to 15 kt becoming east 10 to
20 kt late in the evening, then becoming southeast after midnight
increasing to 15 to 25 kt late. waves 1 to 3 ft building to 4 to
6 ft occasionally to 8 ft. 
.monday...southeast winds to 30 kt. rain showers likely in the
afternoon. waves 6 to 9 ft occasionally to 12 ft. 
.monday night...southeast winds to 30 kt becoming south. showers
with a chance of thunderstorms in the evening, then showers
overnight. waves 7 to 10 ft occasionally to 13 ft. 
.tuesday...southwest winds 15 to 25 kt becoming west. waves 6 to
9 ft occasionally to 12 ft subsiding to 4 to 6 ft occasionally to
8 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 kmqt 260201
glfls 
expires:202604260800;;527665

open lake forecast for lake superior
national weather service marquette mi
1001 pm edt sat apr 25 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 slowly rises over lake superior to 30.1 inches by sunday 
morning as 30.4 inch high pressure over northern quebec builds. the 
pattern remains stable over lake superior on sunday while a 29.3 
inch colorado low develops. throughout monday, this low moves 
northeast, 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.



lsz162-260800-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
1001 pm edt sat apr 25 2026 /901 pm cdt sat apr 25 2026/

.rest of tonight...northeast winds 5 to 15 knots. patchy fog. a
chance of rain showers. waves calm to 2 feet. 
.sunday...northeast winds 5 to 15 knots increasing to 10 to
20 knots in the afternoon. patchy fog through early afternoon. a
chance of rain showers. waves calm to 2 feet. 
.sunday night...northeast winds 10 to 20 knots. a slight chance
of rain showers after midnight. waves building to 2 to 4 feet. 
.monday...northeast winds 15 to 25 knots veering east by mid
afternoon. a chance of rain showers through early afternoon, then
rain showers and 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 north
20 to 30 knots after midnight. a slight chance of thunderstorms
through midnight. rain showers. waves building to 4 to 7 feet
occasionally to 9 feet, then subsiding to 3 to 6 feet
occasionally to 8 feet. 
.tuesday...northwest winds 20 to 30 knots backing west by mid
afternoon. a chance of rain showers through early afternoon.
waves subsiding to 2 to 4 feet. 
.tuesday night...northwest winds 10 to 20 knots diminishing to
5 to 15 knots after midnight. 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 260201
glfls 
expires:202604260800;;527666

open lake forecast for lake superior
national weather service marquette mi
1001 pm edt sat apr 25 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 slowly rises over lake superior to 30.1 inches by sunday 
morning as 30.4 inch high pressure over northern quebec builds. the 
pattern remains stable over lake superior on sunday while a 29.3 
inch colorado low develops. throughout monday, this low moves 
northeast, 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.



lsz263-260800-
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 sat apr 25 2026

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

$$

fzus63 kmqt 260201
glfls 
expires:202604260800;;527667

open lake forecast for lake superior
national weather service marquette mi
1001 pm edt sat apr 25 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 slowly rises over lake superior to 30.1 inches by sunday 
morning as 30.4 inch high pressure over northern quebec builds. the 
pattern remains stable over lake superior on sunday while a 29.3 
inch colorado low develops. throughout monday, this low moves 
northeast, 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.



lsz264-260800-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
1001 pm edt sat apr 25 2026

.rest of tonight...southeast winds 5 to 15 knots backing east
late. patchy fog after midnight. waves calm to 2 feet. 
.sunday...east winds 5 to 15 knots. a slight chance of rain
showers through early afternoon. patchy fog. waves calm to
2 feet. 
.sunday night...east winds 5 to 15 knots increasing to 10 to
20 knots late. waves building to 1 to 3 feet. 
.monday...east winds 15 to 25 knots increasing to 20 to 30 knots
by mid afternoon. a chance of rain showers by mid afternoon.
waves building to 7 to 10 feet occasionally to 13 feet. 
.monday night...southeast gales to 35 knots. 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...northwest gales to 40 knots backing west by mid
afternoon. a chance of rain showers. waves subsiding to 4 to
7 feet occasionally to 9 feet. 
.tuesday night...northwest winds 15 to 25 knots diminishing to
5 to 15 knots after midnight. 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 260201
glfls 
expires:202604260800;;527668

open lake forecast for lake superior
national weather service marquette mi
1001 pm edt sat apr 25 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 slowly rises over lake superior to 30.1 inches by sunday 
morning as 30.4 inch high pressure over northern quebec builds. the 
pattern remains stable over lake superior on sunday while a 29.3 
inch colorado low develops. throughout monday, this low moves 
northeast, 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.



lsz265-260800-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
1001 pm edt sat apr 25 2026

.rest of tonight...southeast winds 5 to 15 knots. patchy fog
after midnight. waves calm to 2 feet. 
.sunday...southeast winds 10 to 20 knots backing east late. waves
calm to 2 feet. 
.sunday night...east winds 10 to 20 knots becoming southeast
15 to 25 knots late. waves building to 2 to 4 feet. 
.monday...southeast winds 20 to 30 knots increasing to gales to
35 knots by mid afternoon. a chance of rain showers by mid
afternoon. waves building to 6 to 9 feet occasionally to 11 feet.
.monday night...southeast gales to 35 knots. a slight chance of
thunderstorms through midnight. rain showers. waves building to
8 to 11 feet occasionally to 14 feet, then subsiding to 6 to
9 feet occasionally to 11 feet. 
.tuesday...west gales to 40 knots. a chance of rain showers.
waves subsiding to 4 to 7 feet occasionally to 9 feet. 
.tuesday night...northwest winds 20 to 30 knots diminishing to
10 to 20 knots after midnight. waves subsiding to calm to 2 feet.
.wednesday...northwest winds 10 to 20 knots. waves calm to
2 feet. 
.thursday...northwest winds 10 to 20 knots. waves building to
1 to 3 feet, then subsiding to calm to 2 feet. 

$$

fzus63 kmqt 260201
glfls 
expires:202604260800;;527669

open lake forecast for lake superior
national weather service marquette mi
1001 pm edt sat apr 25 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 slowly rises over lake superior to 30.1 inches by sunday 
morning as 30.4 inch high pressure over northern quebec builds. the 
pattern remains stable over lake superior on sunday while a 29.3 
inch colorado low develops. throughout monday, this low moves 
northeast, 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.



lsz266-260800-
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 sat apr 25 2026

.rest of tonight...southeast winds 5 to 15 knots veering south
after midnight, then backing southeast late. patchy fog after
midnight. waves calm to 2 feet. 
.sunday...southeast winds 10 to 20 knots backing east late.
patchy fog through early afternoon. waves calm to 2 feet. 
.sunday night...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
40 knots by mid afternoon. a chance of rain showers by mid
afternoon. waves building to 8 to 11 feet occasionally to
14 feet. 
.monday night...southeast gales to 40 knots. 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 7 to 10 feet occasionally to 13 feet, then
building to 9 to 12 feet occasionally to 15 feet. 
.tuesday night...northwest gales to 35 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. 

$$

fzus63 kmqt 260201
glfls 
expires:202604260800;;527670

open lake forecast for lake superior
national weather service marquette mi
1001 pm edt sat apr 25 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 slowly rises over lake superior to 30.1 inches by sunday 
morning as 30.4 inch high pressure over northern quebec builds. the 
pattern remains stable over lake superior on sunday while a 29.3 
inch colorado low develops. throughout monday, this low moves 
northeast, 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.



lsz267-260800-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
1001 pm edt sat apr 25 2026

.rest of tonight...southeast winds 5 to 15 knots. patchy fog
after midnight. waves calm to 2 feet. 
.sunday...southeast winds 5 to 15 knots increasing to 10 to
20 knots in the afternoon, then backing east late. patchy fog
through early afternoon. waves calm to 2 feet. 
.sunday night...southeast winds 10 to 20 knots increasing to
15 to 25 knots late. waves building to 1 to 3 feet. 
.monday...southeast winds 20 to 30 knots increasing to gales to
40 knots by mid afternoon. waves building to 7 to 10 feet
occasionally to 13 feet. 
.monday night...southeast gales to 45 knots. rain showers. waves
building to 9 to 12 feet occasionally to 15 feet, then subsiding
to 7 to 10 feet occasionally to 13 feet. 
.tuesday...south gales to 35 knots veering west by mid afternoon.
rain showers likely through early afternoon, then a chance of
rain showers by mid afternoon. waves subsiding to 5 to 8 feet
occasionally to 10 feet, then building to 9 to 12 feet
occasionally to 15 feet. 
.tuesday night...northwest gales to 35 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 2 to 4 feet, then subsiding to 1 to 3 feet. 

$$