fzus63 kdtx 270137
glflh 
expires:202604270945;;584361

open lake forecast for lake huron
national weather service detroit/pontiac mi
937 pm 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 chance for thunderstorms.


lhz361-270945-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
937 pm edt sun apr 26 2026

.rest of 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 1 to 3 feet building to 5 to
7 feet. waves occasionally around 10 feet. 
.monday night...southeast winds 20 to 25 knots with gusts to
around 30 knots. showers likely in the evening...then showers
after midnight. waves 8 to 12 feet. waves occasionally around
15 feet. 
.tuesday...south winds 15 to 20 knots with gusts to around
30 knots veering to the west early in the afternoon. a chance of
showers. waves 8 to 12 feet. waves occasionally around 15 feet. 
.tuesday night...west winds 15 to 20 knots decreasing to 5 to
10 knots. waves 4 to 6 feet subsiding to 2 to 4 feet after
midnight. waves occasionally around 8 feet. 
.wednesday...northwest winds 5 to 10 knots increasing to 10 to
15 knots late in the afternoon. waves 1 to 3 feet building to
2 to 4 feet late in the afternoon. 
.thursday...northwest winds 10 to 15 knots decreasing to 5 to
10 knots in the late morning and early afternoon...then
increasing to 10 to 15 knots . waves 2 to 4 feet subsiding to
1 to 3 feet in the late morning and early afternoon...then
building to 2 to 4 feet . 
.friday...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 270137
glflh 
expires:202604270945;;584362

open lake forecast for lake huron
national weather service detroit/pontiac mi
937 pm 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 chance for thunderstorms.


lhz362-363-270945-
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-
937 pm edt sun apr 26 2026

.rest of tonight...east winds 5 to 10 knots. waves 2 feet or
less. 
.monday...southeast winds 5 to 10 knots increasing to 15 to
20 knots. waves 1 to 3 feet building to 3 to 5 feet in the
afternoon. 
.monday night...southeast winds 15 to 20 knots increasing to
30 knots. sporadic gusts to 35 knot gales. a chance of showers in
the evening...then showers after midnight. waves 6 to 9 feet 
building to 10 to 14 feet after midnight. waves occasionally 
around 18 feet. 
.tuesday...south winds 20 to 25 knots with gusts to around 30 
knots decreasing to 15 to 20 knots with gusts to around 30 knots 
in the late morning and afternoon. showers in the morning. waves 8
to 12 feet. waves occasionally around 15 feet. 
.tuesday night...west winds 10 to 15 knots veering to the
northwest by midnight...then decreasing to 5 to 10 knots after
midnight. waves 3 to 5 feet. 
.wednesday...northwest winds 5 to 10 knots becoming north 10 to
15 knots late in the morning...then becoming northwest 15 to
20 knots late in the evening. waves 1 to 3 feet building to 3 to
5 feet late in the afternoon. 
.thursday...northwest winds 10 to 15 knots. waves 3 to 5 feet. 
.friday...northwest winds 10 to 15 knots increasing to 15 to
20 knots by midnight. waves 3 to 5 feet. 


$$

fzus63 kdtx 270137
glflh 
expires:202604270945;;584363

open lake forecast for lake huron
national weather service detroit/pontiac mi
937 pm 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 chance for thunderstorms.


lhz462>464-270945-
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-
937 pm edt sun apr 26 2026

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


$$

fzus63 kdtx 261941
glflh 
expires:202604270345;;571130

open lake forecast for lake huron
national weather service detroit/pontiac mi
341 pm 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 chance for thunderstorms.


lhz362-363-462-270345-
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-
lake huron from port austin to harbor beach beyond 5nm off shore-
341 pm edt sun apr 26 2026

.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 late in the afternoon. waves 1 to 3 feet building to
3 to 5 feet in the afternoon. 
.monday night...southeast winds 15 to 20 knots increasing to
20 to 25 knots in the late evening and overnight. gusts near 35 
knot gales. a chance of showers in the evening...then showers 
after midnight. waves 6 to 9 feet building to 10 to 14 feet after 
midnight. waves occasionally around 18 feet. 
.tuesday...south winds 20 to 25 knots with gusts to 35 knot gales
decreasing to 15 to 20 knots in the late morning and afternoon.
showers in the morning. waves 10 to 14 feet. waves occasionally
around 18 feet. 
.tuesday night...west winds 10 to 15 knots veering to the
northwest by midnight...then decreasing to 5 to 10 knots after
midnight. waves 4 to 6 feet. waves occasionally around 8 feet. 
.wednesday...northwest winds 5 to 10 knots increasing to
northwest 15 to 20 knots late in the evening. waves 1 to 3 feet
building to 3 to 5 feet late in the afternoon. 
.thursday...northwest winds 10 to 15 knots. waves 3 to 5 feet. 
.friday...northwest winds 10 to 15 knots. waves 3 to 5 feet. 


$$

fzus63 kmkx 270209
glflm 
expires:202604270915;;585351

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
909 pm 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...

low pressure of 29.4 inches is expected to lift from northeast 
kansas tonight to lake superior by later monday night while
deepening to 29.3 inches. look for increasing easterly winds
tonight and southeast winds through monday night as the low 
approaches. the cooler lake temps should dampen the threat for 
gales across the lake. winds will shift to the west early tuesday
morning with the cold frontal passage, and gusty westerly winds 
are expected through tuesday afternoon behind the departing low.

high pressure around 30.1 inches will set up over the upper
midwest and upper great lakes tuesday through friday. 


lmz261-362-364-366-563-565-567-868-270915-
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-
909 pm cdt sun apr 26 2026

sheboygan wi to pentwater mi north...

.rest of tonight...east winds 10 to 15 kt becoming southeast
10 to 20 kt. waves 1 to 3 ft building to 2 to 4 ft. 
.monday...southeast winds 15 to 25 kt increasing to 30 kt. a few
gale force gusts up to 35 kt possible. chance of rain showers and
slight chance of thunderstorms in the afternoon. waves 3 to 5 ft 
building to 6 to 9 ft occasionally to 12 ft. 
.monday night...southeast winds to 30 kt becoming south. rain 
showers with a chance of thunderstorms. waves 8 to 11 ft 
occasionally to 14 ft.
.tuesday...southwest winds to 30 kt becoming west. chance of rain
showers in the morning. waves 6 to 9 ft occasionally to 12 ft
subsiding to 4 to 7 ft occasionally to 9 ft. 
.tuesday night...northwest winds 10 to 20 kt becoming north 10 to
15 kt. waves 2 to 4 ft subsiding to 1 to 2 ft. 
.wednesday...north winds 10 to 15 kt increasing to 10 to 20 kt.
waves 1 to 2 ft. 
.wednesday night...north winds 10 to 15 kt. waves 1 to 2 ft.
.thursday...north winds 10 to 15 kt becoming west 10 to 20 kt.
waves 1 to 2 ft. 
.friday...north winds 10 to 15 kt increasing to 10 to 20 kt.
waves 1 to 2 ft.  

$$

fzus63 kmkx 270209
glflm 
expires:202604270915;;585352

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
909 pm 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...

low pressure of 29.4 inches is expected to lift from northeast 
kansas tonight to lake superior by later monday night while
deepening to 29.3 inches. look for increasing easterly winds
tonight and southeast winds through monday night as the low 
approaches. the cooler lake temps should dampen the threat for 
gales across the lake. winds will shift to the west early tuesday
morning with the cold frontal passage, and gusty westerly winds 
are expected through tuesday afternoon behind the departing low.

high pressure around 30.1 inches will set up over the upper
midwest and upper great lakes tuesday through friday. 


lmz080-669-671-673-675-777-779-870-872-874-876-878-270915-
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-
909 pm cdt sun apr 26 2026

sheboygan wi to pentwater mi south...

.rest of tonight...east winds 10 to 20 kt becoming southeast
15 to 25 kt. waves 2 to 4 ft building to 3 to 5 ft. 
.monday...southeast winds 15 to 25 kt increasing to 30 kt. a few
gale force gusts up to 35 kt possible. chance of rain showers and
slight chance of thunderstorms in the morning, then chance of 
rain showers and thunderstorms in the afternoon. waves 4 to 6 ft 
occasionally to 8 ft building to 6 to 9 ft occasionally to 12 ft. 
.monday night...southeast winds to 30 kt becoming southwest late.
rain showers with a chance of thunderstorms. waves 7 to 10 ft 
occasionally to 13 ft. 
.tuesday...west winds to 30 kt diminishing to 15 to 25 kt. 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 2 ft. 
.wednesday...north winds 10 to 20 kt. waves 2 to 4 ft. 
.wednesday night...north winds 10 to 20 kt diminishing to 5 to
10 kt. waves 2 to 4 ft subsiding to 1 to 3 ft. 
.thursday...north winds 5 to 10 kt becoming northeast 10 to
20 kt. waves 1 to 2 ft. 
.friday...north winds 10 to 15 kt increasing to 10 to 20 kt.
waves 2 to 4 ft.  

$$

fzus63 kmqt 270201
glfls 
expires:202604270800;;584980

open lake forecast for lake superior
national weather service marquette mi
1001 pm 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...

30.1 inch high pressure remains over the lake tonight. a 29.4 inch 
low over the central plains tonight moves northeast and arrives in 
wisconsin late monday afternoon. the low then crosses lake superior 
monday night at 29.3 inches, reaching james bay late tuesday. in the 
wake of the low, 30.2 inch high pressure builds over the canadian 
prairie, sending 30.0 inch high pressure ridging over the lake 
tuesday night through wednesday. this high approaches the great 
lakes slowly thursday and eventually resides over lake superior on 
friday at 30.2 inches.



lsz267-270800-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
1001 pm edt sun apr 26 2026

...gale watch in effect from monday afternoon through tuesday
afternoon...

.rest of tonight...southeast winds 10 to 20 knots. waves calm to
2 feet building to 1 to 3 feet. 
.monday...southeast winds 15 to 25 knots increasing to gales to
40 knots in the afternoon. a slight chance of rain showers by mid
afternoon. waves building to 7 to 10 feet occasionally to
13 feet. 
.monday night...southeast gales to 40 knots. rain showers and a
slight chance of thunderstorms. waves building to 9 to 12 feet
occasionally to 15 feet, then subsiding to 6 to 9 feet
occasionally to 11 feet. 
.tuesday...west gales to 35 knots. rain showers likely through
early afternoon, then a slight chance of rain showers by mid
afternoon. waves subsiding to 5 to 8 feet occasionally to
10 feet, then building to 10 to 14 feet occasionally to 18 feet. 
.tuesday night...northwest winds 15 to 25 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. 
.wednesday night...northwest winds 10 to 20 knots. waves calm to
2 feet. 
.thursday...northwest winds 5 to 15 knots becoming north 10 to
20 knots. waves building to 1 to 3 feet, then subsiding to calm
to 2 feet. 
.friday...northwest winds 10 to 20 knots veering north. waves
building to 1 to 3 feet, then subsiding to calm to 2 feet. 

$$

fzus63 kmqt 270201
glfls 
expires:202604270800;;584975

open lake forecast for lake superior
national weather service marquette mi
1001 pm 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...

30.1 inch high pressure remains over the lake tonight. a 29.4 inch 
low over the central plains tonight moves northeast and arrives in 
wisconsin late monday afternoon. the low then crosses lake superior 
monday night at 29.3 inches, reaching james bay late tuesday. in the 
wake of the low, 30.2 inch high pressure builds over the canadian 
prairie, sending 30.0 inch high pressure ridging over the lake 
tuesday night through wednesday. this high approaches the great 
lakes slowly thursday and eventually resides over lake superior on 
friday at 30.2 inches.



lsz162-270800-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
1001 pm edt sun apr 26 2026 /901 pm cdt sun apr 26 2026/

...dense fog advisory in effect until 8 am edt /7 am cdt/
monday...

.rest of tonight...northeast winds 10 to 20 knots veering east
late. patchy fog. a slight chance of rain showers. waves 1 to
3 feet building to 3 to 6 feet occasionally to 8 feet. 
.monday...east winds 15 to 25 knots backing northeast in the
afternoon. patchy fog through early afternoon. rain showers. a
slight chance of thunderstorms by mid afternoon. waves 3 to
6 feet occasionally to 8 feet. 
.monday night...northeast winds 15 to 25 knots backing northwest
after midnight, then increasing to 20 to 30 knots late. rain
showers. waves subsiding to 3 to 5 feet occasionally to 7 feet. 
.tuesday...northwest winds 20 to 30 knots becoming west 15 to
25 knots by mid afternoon. a slight chance of rain showers
through early afternoon. waves subsiding to 1 to 3 feet. 
.tuesday night...northwest winds 10 to 20 knots. waves subsiding
to calm to 2 feet. 
.wednesday...west winds 10 to 20 knots becoming southwest 5 to
15 knots by mid afternoon. waves calm to 2 feet. 
.wednesday night...north winds 5 to 15 knots. waves calm to
2 feet. 
.thursday...north winds 5 to 15 knots. waves calm to 2 feet. 
.friday...north winds 5 to 15 knots diminishing to less than
10 knots. waves calm to 2 feet. 

$$

fzus63 kmqt 270201
glfls 
expires:202604270800;;584976

open lake forecast for lake superior
national weather service marquette mi
1001 pm 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...

30.1 inch high pressure remains over the lake tonight. a 29.4 inch 
low over the central plains tonight moves northeast and arrives in 
wisconsin late monday afternoon. the low then crosses lake superior 
monday night at 29.3 inches, reaching james bay late tuesday. in the 
wake of the low, 30.2 inch high pressure builds over the canadian 
prairie, sending 30.0 inch high pressure ridging over the lake 
tuesday night through wednesday. this high approaches the great 
lakes slowly thursday and eventually resides over lake superior on 
friday at 30.2 inches.



lsz263-270800-
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 sun apr 26 2026

...dense fog advisory in effect until 8 am edt monday...

.rest of tonight...northeast winds 5 to 15 knots becoming east
10 to 20 knots after midnight. patchy fog. a slight chance of
rain showers after midnight. waves calm to 2 feet building to
2 to 4 feet. 
.monday...east winds 10 to 20 knots increasing to 15 to 25 knots
in the afternoon. patchy fog through early afternoon. a chance of
rain showers through early afternoon, then rain showers and a
slight chance of thunderstorms by mid afternoon. waves building
to 5 to 8 feet occasionally to 10 feet. 
.monday night...east winds 15 to 25 knots backing north after
midnight, then becoming northwest 20 to 30 knots late. a slight
chance of thunderstorms through midnight. rain showers. waves
building to 6 to 9 feet occasionally to 11 feet, then subsiding
to 4 to 7 feet occasionally to 9 feet. 
.tuesday...west winds 20 to 30 knots. a chance of rain showers
through early afternoon. waves building to 5 to 8 feet
occasionally to 10 feet, then subsiding to 3 to 6 feet
occasionally to 8 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 backing southwest by mid
afternoon. waves calm to 2 feet. 
.wednesday night...west winds 5 to 15 knots veering north after
midnight. waves calm to 2 feet. 
.thursday...north winds 5 to 15 knots. waves calm to 2 feet. 
.friday...north winds 5 to 15 knots backing west. waves calm to
2 feet. 

$$

fzus63 kmqt 270201
glfls 
expires:202604270800;;584977

open lake forecast for lake superior
national weather service marquette mi
1001 pm 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...

30.1 inch high pressure remains over the lake tonight. a 29.4 inch 
low over the central plains tonight moves northeast and arrives in 
wisconsin late monday afternoon. the low then crosses lake superior 
monday night at 29.3 inches, reaching james bay late tuesday. in the 
wake of the low, 30.2 inch high pressure builds over the canadian 
prairie, sending 30.0 inch high pressure ridging over the lake 
tuesday night through wednesday. this high approaches the great 
lakes slowly thursday and eventually resides over lake superior on 
friday at 30.2 inches.



lsz264-270800-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
1001 pm edt sun apr 26 2026

...dense fog advisory in effect until 8 am edt monday...

.rest of tonight...northeast winds 5 to 15 knots veering east
after midnight. patchy fog. waves calm to 2 feet building to 1 to
3 feet. 
.monday...southeast winds 15 to 25 knots increasing to 20 to
30 knots late. patchy dense fog through early afternoon. a chance
of rain showers. a slight chance of thunderstorms by mid
afternoon. waves building to 6 to 9 feet occasionally to 11 feet.
.monday night...southeast winds to 30 knots with a few gale force
gusts to 35 knots possible diminishing to 20 to 30 knots after
midnight, then becoming west 15 to 25 knots late. a slight chance
of thunderstorms through midnight. 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...west gales to 35 knots diminishing to 20 to 30 knots
by mid afternoon. a chance of rain showers through early
afternoon. waves subsiding to 3 to 6 feet occasionally to 8 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...northwest winds 5 to 15 knots backing west by mid
afternoon. waves calm to 2 feet. 
.wednesday night...west winds less than 10 knots veering
northwest after midnight. waves calm to 2 feet. 
.thursday...north winds 5 to 15 knots. waves calm to 2 feet. 
.friday...north winds 5 to 15 knots backing west. waves calm to
2 feet. 

$$

fzus63 kmqt 270201
glfls 
expires:202604270800;;584978

open lake forecast for lake superior
national weather service marquette mi
1001 pm 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...

30.1 inch high pressure remains over the lake tonight. a 29.4 inch 
low over the central plains tonight moves northeast and arrives in 
wisconsin late monday afternoon. the low then crosses lake superior 
monday night at 29.3 inches, reaching james bay late tuesday. in the 
wake of the low, 30.2 inch high pressure builds over the canadian 
prairie, sending 30.0 inch high pressure ridging over the lake 
tuesday night through wednesday. this high approaches the great 
lakes slowly thursday and eventually resides over lake superior on 
friday at 30.2 inches.



lsz265-270800-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
1001 pm edt sun apr 26 2026

...dense fog advisory in effect until 2 am edt monday...
...gale watch in effect from monday afternoon through tuesday
afternoon...

.rest of tonight...southeast winds 10 to 20 knots backing east
after midnight, then veering southeast late. patchy fog by
midnight. waves calm to 2 feet. 
.monday...southeast winds 15 to 25 knots increasing to gales to
35 knots. patchy fog through early afternoon. a chance of rain
showers. a slight chance of thunderstorms by mid afternoon. waves
building to 5 to 8 feet occasionally to 10 feet. 
.monday night...southeast winds 20 to 30 knots diminishing to
15 to 25 knots after midnight, then becoming southwest 20 to
30 knots late. rain showers and a slight chance of thunderstorms.
waves building to 7 to 10 feet occasionally to 13 feet, then
subsiding to 5 to 8 feet occasionally to 10 feet. 
.tuesday...west gales to 35 knots. a chance of rain showers
through early afternoon. waves building to 6 to 9 feet
occasionally to 11 feet, then subsiding to 3 to 5 feet
occasionally to 7 feet. 
.tuesday night...west winds 15 to 25 knots becoming northwest
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. 
.wednesday night...northwest winds 5 to 15 knots. waves calm to
2 feet. 
.thursday...north winds 5 to 15 knots backing northwest. waves
calm to 2 feet. 
.friday...north winds 5 to 15 knots backing northwest. waves calm
to 2 feet. 

$$

fzus63 kmqt 270201
glfls 
expires:202604270800;;584979

open lake forecast for lake superior
national weather service marquette mi
1001 pm 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...

30.1 inch high pressure remains over the lake tonight. a 29.4 inch 
low over the central plains tonight moves northeast and arrives in 
wisconsin late monday afternoon. the low then crosses lake superior 
monday night at 29.3 inches, reaching james bay late tuesday. in the 
wake of the low, 30.2 inch high pressure builds over the canadian 
prairie, sending 30.0 inch high pressure ridging over the lake 
tuesday night through wednesday. this high approaches the great 
lakes slowly thursday and eventually resides over lake superior on 
friday at 30.2 inches.



lsz266-270800-
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 sun apr 26 2026

...gale watch in effect from monday afternoon through tuesday
afternoon...

.rest of tonight...southeast winds 10 to 20 knots backing east
after midnight, then veering southeast late. waves calm to 2 feet
building to 1 to 3 feet. 
.monday...southeast winds 15 to 25 knots increasing to gales to
40 knots. 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 becoming south gales
to 35 knots late. rain showers and a 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. 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 15 to 25 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. 
.wednesday night...northwest winds 5 to 15 knots. waves calm to
2 feet. 
.thursday...northwest winds 5 to 15 knots increasing to 10 to
20 knots. waves calm to 2 feet. 
.friday...north winds 10 to 20 knots backing northwest. waves
calm to 2 feet. 

$$