fzus63 kdtx 031400
glflh 
expires:202604032200;;763824

open lake forecast for lake huron
national weather service detroit/pontiac mi
1000 am edt fri apr 3 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...a cold front stalls over the southern great lakes
today, before lifting north as a warm front tonight and saturday.
this is driven by low pressure, 29.60 inches, that tracks toward
lake superior saturday. showers and thunderstorms are expected 
with this system. 


lhz361-032200-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
1000 am edt fri apr 3 2026

.rest of today...west winds 15 to 20 knots. gusts to 30 knots in
the late morning and early afternoon. waves 5 to 7 feet. waves
occasionally around 10 feet. 
.tonight...northwest winds 10 to 15 knots becoming east 15 to
20 knots after midnight...then increasing to 20 to 25 knots early
in the morning. a chance of rain after midnight. waves 3 to
5 feet subsiding to 2 to 4 feet by midnight...then building to
5 to 7 feet early in the morning. waves occasionally around
10 feet. 
.saturday...east winds to 30 knots decreasing to 15 to 20 knots
early in the afternoon. rain. waves 8 to 12 feet. waves
occasionally around 15 feet. 
.saturday night...southeast winds 10 to 15 knots becoming
southwest 15 to 20 knots by midnight...then becoming west 20 to
25 knots with gusts to around 30 knots after midnight. waves 6 to
9 feet. waves occasionally around 12 feet. 
.sunday...west winds to 30 knots decreasing to 10 to 15 knots.
waves 8 to 12 feet subsiding to 4 to 6 feet late in the evening.
waves occasionally around 15 feet. 
.monday...west winds 5 to 10 knots becoming northwest 10 to
15 knots early in the evening...then becoming north 20 to
25 knots by midnight. a chance of snow . waves 1 to 3 feet
building to 6 to 9 feet. waves occasionally around 12 feet. 
.tuesday...north winds 15 to 20 knots decreasing to 10 to
15 knots in the late morning and early afternoon...then backing
to the west . waves 4 to 6 feet subsiding to 1 to 3 feet . waves
occasionally around 8 feet. 


$$

fzus63 kdtx 031400
glflh 
expires:202604032200;;763825

open lake forecast for lake huron
national weather service detroit/pontiac mi
1000 am edt fri apr 3 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...a cold front stalls over the southern great lakes
today, before lifting north as a warm front tonight and saturday.
this is driven by low pressure, 29.60 inches, that tracks toward
lake superior saturday. showers and thunderstorms are expected 
with this system. 


lhz362-363-032200-
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-
1000 am edt fri apr 3 2026

.rest of today...southwest winds 15 to 20 knots becoming west
10 to 15 knots in the afternoon. waves 6 to 9 feet. waves
occasionally around 12 feet. 
.tonight...northwest winds 10 to 15 knots veering to the north by
midnight...then becoming east 15 to 20 knots early in the
morning. waves 4 to 6 feet. waves occasionally around 8 feet. 
.saturday...east winds 15 to 20 knots. gusts to 30 knots in the
late morning and early afternoon. rain. waves 8 to 12 feet. waves
occasionally around 15 feet. 
.saturday night...southeast winds 15 to 20 knots veering to the
southwest in the late evening and overnight. waves 5 to 7 feet.
waves occasionally around 10 feet. 
.sunday...west winds 20 to 25 knots with gusts to around 30 knots
becoming northwest 15 to 20 knots late in the evening. waves 8 to
12 feet. waves occasionally around 15 feet. 
.monday...west 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 early in the evening becoming northwest 20 to
25 knots with gusts to around 30 knots by midnight. a chance of
snow . waves 3 to 5 feet subsiding to 2 to 4 feet until early
evening...then building to 8 to 12 feet by midnight. waves
occasionally around 15 feet. 
.tuesday...north 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 decreasing to 10 to 15 knots early in the
evening backing to the west by midnight. waves 8 to 12 feet
subsiding to 3 to 5 feet . waves occasionally around 15 feet. 


$$

fzus63 kdtx 031400
glflh 
expires:202604032200;;763826

open lake forecast for lake huron
national weather service detroit/pontiac mi
1000 am edt fri apr 3 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...a cold front stalls over the southern great lakes
today, before lifting north as a warm front tonight and saturday.
this is driven by low pressure, 29.60 inches, that tracks toward
lake superior saturday. showers and thunderstorms are expected 
with this system. 


lhz462>464-032200-
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-
1000 am edt fri apr 3 2026

.rest of today...southwest winds 15 to 20 knots becoming west
10 to 15 knots in the afternoon. waves 4 to 6 feet. waves
occasionally around 8 feet. 
.tonight...northwest winds 10 to 15 knots veering to the
northeast early in the morning. a chance of rain after midnight.
waves 1 to 3 feet building to 2 to 4 feet early in the morning. 
.saturday...east winds 10 to 15 knots increasing to 15 to
20 knots in the late morning and early afternoon...then veering
to the south early in the afternoon. rain. waves 3 to 5 feet. 
.saturday night...south winds 15 to 20 knots veering to the
southwest in the late evening and overnight. rain in the evening.
waves 4 to 6 feet. 
.sunday...west winds 15 to 20 knots becoming northwest 10 to
15 knots late in the evening. waves 4 to 6 feet. 
.monday...west winds 10 to 15 knots becoming northwest 5 to
10 knots until early evening...then increasing to 20 to 25 knots
by midnight. a chance of snow and rain early in the evening. a
chance of snow by midnight. waves 3 to 5 feet subsiding to 1 to
3 feet until early evening...then building to 8 to 12 feet by
midnight. waves occasionally around 15 feet. 
.tuesday...northwest winds to 30 knots becoming north 15 to
20 knots in the late morning and early afternoon...then
decreasing to 5 to 10 knots early in the evening veering to the
southeast by midnight. a chance of snow early in the morning.
waves 10 to 14 feet subsiding to 2 to 4 feet. waves occasionally
around 18 feet. 


$$

fzus63 kmkx 031338
glflm 
expires:202604032115;;763236

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
838 am cdt fri apr 3 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...

westerly winds will diminish through late morning as a weak 
surface ridge passes over the lake. winds will then become 
northeasterly by this evening as a weaker low pressure around 
29.8 inches occludes and crosses central lake michigan through 
early saturday. a few easterly gale force gusts are possible over
the northern end of the lake saturday morning. winds then veer 
southwesterly saturday afternoon as the surface low pressure 
exits northeastward. 

westerly winds will persist through the weekend. a weak low
pressure trough around 30.0 inches crossing lake superior and
northern lake michigan will drag a cold front down the lake 
monday afternoon. a brief period of brisk northerly winds is 
expected behind it, diminishing into tuesday morning. 


lmz080-669-671-673-675-777-779-870-872-874-876-878-032115-
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-
838 am cdt fri apr 3 2026

sheboygan wi to pentwater mi south...

.rest of today...west winds 10 to 20 kt veering to northeast.
waves 4 to 6 ft occasionally to 8 ft subsiding to 1 to 3 ft. 
.tonight...northeast winds 15 to 25 kt becoming east to 30 kt.
scattered rain showers and thunderstorms in the evening, then
rain showers and scattered thunderstorms overnight. waves 2 to
4 ft building to 4 to 7 ft occasionally to 9 ft.
.saturday...southeast winds to 30 kt veering to west 15 to 25 kt.
chance of rain showers. waves 4 to 7 ft occasionally to 9 ft
subsiding to 4 to 6 ft occasionally to 8 ft. 
.saturday night...west winds 15 to 25 kt increasing to 30 kt.
waves 4 to 7 ft occasionally to 9 ft building to 6 to 9 ft
occasionally to 12 ft. 
.sunday...northwest winds to 30 kt. waves 7 to 10 ft occasionally
to 13 ft. 
.sunday night...west winds 10 to 15 kt increasing to 10 to 20 kt.
waves 3 to 5 ft subsiding to 1 to 3 ft. 
.monday...northwest winds 10 to 20 kt. waves 2 to 4 ft building
to 4 to 6 ft occasionally to 8 ft. 
.tuesday...north winds 15 to 25 kt diminishing to 10 to 15 kt.
waves 8 to 12 ft occasionally to 16 ft subsiding to 5 to 8 ft
occasionally to 10 ft.  

$$

fzus63 kmkx 031338
glflm 
expires:202604032115;;763235

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
838 am cdt fri apr 3 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...

westerly winds will diminish through late morning as a weak 
surface ridge passes over the lake. winds will then become 
northeasterly by this evening as a weaker low pressure around 
29.8 inches occludes and crosses central lake michigan through 
early saturday. a few easterly gale force gusts are possible over
the northern end of the lake saturday morning. winds then veer 
southwesterly saturday afternoon as the surface low pressure 
exits northeastward. 

westerly winds will persist through the weekend. a weak low
pressure trough around 30.0 inches crossing lake superior and
northern lake michigan will drag a cold front down the lake 
monday afternoon. a brief period of brisk northerly winds is 
expected behind it, diminishing into tuesday morning. 


lmz261-362-364-366-563-565-567-868-032115-
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-
838 am cdt fri apr 3 2026

sheboygan wi to pentwater mi north...

.rest of today...west winds 10 to 20 kt veering to north. waves
4 to 6 ft occasionally to 8 ft subsiding to 2 to 4 ft. 
.tonight...northeast winds 15 to 25 kt diminishing to 10 to 20 kt
late in the evening, then becoming east to 30 kt after midnight. a
few gusts to gale force over far northern portions of the lake.  
scattered rain showers in the evening, increasing in coverage. a 
chance for thunder. freezing rain possible over far northern 
portions of the lake. waves 3 to 5 ft building to 4 to 6 ft 
occasionally to 8 ft. 
.saturday...east winds to 30 kt becoming southeast late in the 
morning, then becoming south to 30 kt early in the afternoon 
becoming southwest 15 to 25 kt late. a few gusts to gale force
possible in the morning over the far northern lake. rain showers in
the morning, then chance of rain showers in the afternoon. waves 
5 to 8 ft occasionally to 10 ft subsiding to 4 to 6 ft 
occasionally to 8 ft.
.saturday night...west winds to 30 kt. waves 6 to 9 ft
occasionally to 12 ft. 
.sunday...northwest winds to 30 kt. waves 6 to 9 ft occasionally
to 12 ft. 
.sunday night...northwest winds 10 to 20 kt becoming west 10 to
15 kt. waves 2 to 4 ft subsiding to 1 to 2 ft. 
.monday...west winds 10 to 20 kt becoming northwest. waves 1 to
3 ft building to 4 to 6 ft occasionally to 8 ft. 
.tuesday...north winds 15 to 25 kt becoming west 10 to 15 kt.
waves 7 to 10 ft occasionally to 13 ft subsiding to 3 to 5 ft.  

$$

fzus63 kmqt 031401
glfls 
expires:202604032000;;763878

open lake forecast for lake superior
national weather service marquette mi
1000 am edt fri apr 3 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...

29.5 inch low pressure over the straights will move to the 
ontario/quebec line at 29.6 inches by late friday morning. as this 
happens, another colorado low moves into kansas at 29.6 inches by 
friday. this low moves into eastern iowa by friday night as 
sprawling 30.7 inch high pressure resides over far northern quebec 
and hudson bay. the low moves through the upper great lakes at 
around 29.6 inches late saturday, with lake superior looking to be 
between the low at 29.3 inches now over northern quebec and a 30.3 
inch high over the great plains by sunday. pressure rises on lake 
superior early next week as the high builds to 30.6 inches over the 
red river valley (of the north) on monday before moving into the 
western great lakes by tuesday.



lsz263-032000-
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-
1000 am edt fri apr 3 2026

...gale warning in effect from late tonight through saturday
afternoon...

.rest of today...north winds 15 to 25 knots veering northeast in
the afternoon. waves 4 to 7 feet occasionally to 9 feet subsiding
to 2 to 4 feet, then building to 3 to 5 feet occasionally to
7 feet. 
.tonight...east winds 20 to 30 knots increasing to gales to
35 knots after midnight. a chance of rain, snow and sleet through
midnight, then sleet, possibly mixed with snow and rain likely
after midnight. waves building to 8 to 11 feet occasionally to
14 feet. 
.saturday...east gales to 35 knots becoming northeast 20 to
30 knots late. sleet through early afternoon. snow, possibly
mixed with rain. a slight chance of sleet by mid afternoon. waves
building to 9 to 12 feet occasionally to 15 feet, then subsiding
to 7 to 10 feet occasionally to 13 feet. 
.saturday night...northwest winds 20 to 30 knots. a chance of
snow showers. waves subsiding to 5 to 8 feet occasionally to
10 feet. 
.sunday...northwest winds 15 to 25 knots becoming west 10 to
20 knots by mid afternoon. waves subsiding to 1 to 3 feet. 
.sunday night...west winds 5 to 15 knots becoming northwest 10 to
20 knots after midnight. a chance of rain showers. waves
subsiding to calm to 2 feet, then building to 1 to 3 feet. 
.monday...north winds 20 to 30 knots diminishing to 15 to
25 knots. a chance of snow showers. waves building to 4 to 7 feet
occasionally to 9 feet, then subsiding to 1 to 3 feet. 
.tuesday...west winds 10 to 20 knots becoming south 20 to
30 knots. a chance of rain and snow showers. waves building to
5 to 8 feet occasionally to 10 feet. 

$$

fzus63 kmqt 031401
glfls 
expires:202604032000;;763879

open lake forecast for lake superior
national weather service marquette mi
1000 am edt fri apr 3 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...

29.5 inch low pressure over the straights will move to the 
ontario/quebec line at 29.6 inches by late friday morning. as this 
happens, another colorado low moves into kansas at 29.6 inches by 
friday. this low moves into eastern iowa by friday night as 
sprawling 30.7 inch high pressure resides over far northern quebec 
and hudson bay. the low moves through the upper great lakes at 
around 29.6 inches late saturday, with lake superior looking to be 
between the low at 29.3 inches now over northern quebec and a 30.3 
inch high over the great plains by sunday. pressure rises on lake 
superior early next week as the high builds to 30.6 inches over the 
red river valley (of the north) on monday before moving into the 
western great lakes by tuesday.



lsz264-032000-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
1000 am edt fri apr 3 2026

...gale warning in effect from late tonight through saturday
afternoon...

.rest of today...north winds 15 to 25 knots becoming northeast
10 to 20 knots late. a slight chance of snow by late morning.
waves 4 to 7 feet occasionally to 9 feet subsiding to 3 to 5 feet
occasionally to 7 feet. 
.tonight...northeast winds 15 to 25 knots becoming east 20 to
30 knots after midnight, then increasing to gales to 35 knots
late. a chance of snow, possibly mixed with sleet after midnight.
waves building to 7 to 10 feet occasionally to 13 feet. 
.saturday...east gales to 35 knots diminishing to 20 to 30 knots
late. sleet, possibly mixed with rain through early afternoon.
snow. rain, possibly mixed with sleet by mid afternoon. waves
building to 7 to 11 feet occasionally to 14 feet. 
.saturday night...north winds 20 to 30 knots becoming northwest
gales to 40 knots after midnight. snow showers likely through
midnight, then a chance of snow showers after midnight. waves
subsiding to 5 to 8 feet occasionally to 10 feet, then building
to 7 to 10 feet occasionally to 13 feet. 
.sunday...northwest gales to 40 knots becoming west 15 to
25 knots by mid afternoon. waves subsiding to 2 to 4 feet. 
.sunday night...west winds 5 to 15 knots becoming north 10 to
20 knots after midnight. waves subsiding to calm to 2 feet, then
building to 1 to 3 feet. 
.monday...north winds 20 to 30 knots. a chance of snow showers.
freezing spray. waves building to 5 to 8 feet occasionally to
10 feet, then subsiding to 2 to 4 feet. 
.tuesday...west winds 10 to 20 knots becoming south gales to
35 knots. a chance of snow showers. waves subsiding to 1 to
3 feet, then building to 6 to 9 feet occasionally to 11 feet. 

$$

fzus63 kmqt 031401
glfls 
expires:202604032000;;763880

open lake forecast for lake superior
national weather service marquette mi
1000 am edt fri apr 3 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...

29.5 inch low pressure over the straights will move to the 
ontario/quebec line at 29.6 inches by late friday morning. as this 
happens, another colorado low moves into kansas at 29.6 inches by 
friday. this low moves into eastern iowa by friday night as 
sprawling 30.7 inch high pressure resides over far northern quebec 
and hudson bay. the low moves through the upper great lakes at 
around 29.6 inches late saturday, with lake superior looking to be 
between the low at 29.3 inches now over northern quebec and a 30.3 
inch high over the great plains by sunday. pressure rises on lake 
superior early next week as the high builds to 30.6 inches over the 
red river valley (of the north) on monday before moving into the 
western great lakes by tuesday.



lsz265-032000-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
1000 am edt fri apr 3 2026

...gale warning in effect from late tonight through saturday
afternoon...

.rest of today...north winds 20 to 30 knots diminishing to 15 to
25 knots in the afternoon, then veering northeast late. waves
4 to 7 feet occasionally to 9 feet subsiding to 3 to 5 feet
occasionally to 7 feet. 
.tonight...northeast winds 15 to 25 knots becoming east gales to
35 knots after midnight. a slight chance of sleet through
midnight. a slight chance of rain. sleet, possibly mixed with
snow after midnight. waves building to 7 to 10 feet occasionally
to 13 feet. 
.saturday...east gales to 35 knots diminishing to 15 to 25 knots
late. sleet, possibly mixed with freezing rain and snow through
early afternoon. rain likely. snow likely, possibly mixed with
sleet by mid afternoon. waves building to 8 to 11 feet
occasionally to 14 feet, then subsiding to 3 to 6 feet
occasionally to 8 feet. 
.saturday night...northwest gales to 40 knots. a chance of rain
showers through midnight. a chance of snow showers. waves
subsiding to 3 to 5 feet occasionally to 7 feet, then building to
8 to 11 feet occasionally to 14 feet. 
.sunday...northwest gales to 40 knots diminishing to 20 to
30 knots by mid afternoon. waves subsiding to 2 to 4 feet. 
.sunday night...west winds 10 to 20 knots veering northwest after
midnight. waves subsiding to calm to 2 feet. 
.monday...north gales to 35 knots diminishing to 20 to 30 knots.
snow showers likely. freezing spray. waves building to 8 to
11 feet occasionally to 14 feet, then subsiding to 3 to 6 feet
occasionally to 8 feet. 
.tuesday...west winds 15 to 25 knots becoming south gales to
35 knots. a chance of rain and snow showers. waves subsiding to
calm to 2 feet, then building to 5 to 8 feet occasionally to
10 feet. 

$$

fzus63 kmqt 031401
glfls 
expires:202604032000;;763881

open lake forecast for lake superior
national weather service marquette mi
1000 am edt fri apr 3 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...

29.5 inch low pressure over the straights will move to the 
ontario/quebec line at 29.6 inches by late friday morning. as this 
happens, another colorado low moves into kansas at 29.6 inches by 
friday. this low moves into eastern iowa by friday night as 
sprawling 30.7 inch high pressure resides over far northern quebec 
and hudson bay. the low moves through the upper great lakes at 
around 29.6 inches late saturday, with lake superior looking to be 
between the low at 29.3 inches now over northern quebec and a 30.3 
inch high over the great plains by sunday. pressure rises on lake 
superior early next week as the high builds to 30.6 inches over the 
red river valley (of the north) on monday before moving into the 
western great lakes by tuesday.



lsz266-032000-
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-
1000 am edt fri apr 3 2026

...gale warning in effect from late tonight through saturday
afternoon...

.rest of today...north winds 20 to 30 knots diminishing to 15 to
25 knots late. a slight chance of snow by late morning. waves
4 to 7 feet occasionally to 9 feet subsiding to 3 to 5 feet
occasionally to 7 feet. 
.tonight...northeast winds 15 to 25 knots becoming east 20 to
30 knots after midnight, then increasing to gales to 35 knots
late. a slight chance of rain and sleet through midnight, then
sleet, possibly mixed with rain with snow after midnight. waves
building to 6 to 9 feet occasionally to 11 feet. 
.saturday...east gales to 35 knots diminishing to 15 to 25 knots
late. sleet, possibly mixed with snow and freezing rain through
early afternoon. rain likely. a slight chance of snow and sleet
by mid afternoon. waves building to 8 to 11 feet occasionally to
14 feet, then subsiding to 5 to 8 feet occasionally to 10 feet. 
.saturday night...northwest gales to 40 knots. a chance of rain
showers through midnight. a chance of snow showers. waves
subsiding to 4 to 7 feet occasionally to 9 feet, then building to
10 to 14 feet occasionally to 18 feet. 
.sunday...northwest gales to 40 knots. waves subsiding to 6 to
9 feet occasionally to 11 feet. 
.sunday night...northwest winds 15 to 25 knots diminishing to
10 to 20 knots after midnight. waves subsiding to 1 to 3 feet. 
.monday...north gales to 35 knots diminishing to 20 to 30 knots.
freezing spray. a chance of snow showers. waves building to 9 to
12 feet occasionally to 15 feet, then subsiding to 5 to 8 feet
occasionally to 10 feet. 
.tuesday...west winds 10 to 20 knots becoming south gales to
35 knots. a chance of snow showers, possibly mixed with rain.
waves subsiding to 1 to 3 feet, then building to 7 to 10 feet
occasionally to 13 feet. 

$$

fzus63 kmqt 031401
glfls 
expires:202604032000;;763882

open lake forecast for lake superior
national weather service marquette mi
1000 am edt fri apr 3 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...

29.5 inch low pressure over the straights will move to the 
ontario/quebec line at 29.6 inches by late friday morning. as this 
happens, another colorado low moves into kansas at 29.6 inches by 
friday. this low moves into eastern iowa by friday night as 
sprawling 30.7 inch high pressure resides over far northern quebec 
and hudson bay. the low moves through the upper great lakes at 
around 29.6 inches late saturday, with lake superior looking to be 
between the low at 29.3 inches now over northern quebec and a 30.3 
inch high over the great plains by sunday. pressure rises on lake 
superior early next week as the high builds to 30.6 inches over the 
red river valley (of the north) on monday before moving into the 
western great lakes by tuesday.



lsz267-032000-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
1000 am edt fri apr 3 2026

.rest of today...north winds 15 to 25 knots. waves 3 to 5 feet
occasionally to 7 feet subsiding to 2 to 4 feet. 
.tonight...northeast winds 15 to 25 knots becoming east 20 to
30 knots after midnight, then increasing to 30 knots with a few
gale force gusts to 35 knots possible late. sleet likely with
pockets of freezing rain, rain and snow after midnight. waves
building to 3 to 6 feet occasionally to 8 feet. 
.saturday...east winds to 30 knots with a few gale force gusts to
35 knots possible veering southeast in the afternoon, then
diminishing to 20 to 30 knots late. sleet, possibly mixed with
freezing rain through early afternoon. rain. a slight chance of
snow and sleet by mid afternoon. waves building to 5 to 8 feet
occasionally to 10 feet, then subsiding to 3 to 5 feet
occasionally to 7 feet. 
.saturday night...west winds 20 to 30 knots becoming northwest
gales to 40 knots after midnight. a chance of rain showers
through midnight. a chance of snow showers. waves subsiding to
2 to 4 feet, then building to 10 to 14 feet occasionally to
18 feet. 
.sunday...northwest gales to 40 knots. waves subsiding to 7 to
10 feet occasionally to 13 feet. 
.sunday night...northwest winds 15 to 25 knots diminishing to
5 to 15 knots after midnight. waves subsiding to 1 to 3 feet. 
.monday...north winds 20 to 30 knots. a chance of snow showers.
freezing spray. waves building to 7 to 10 feet occasionally to
13 feet, then subsiding to 3 to 6 feet occasionally to 8 feet. 
.tuesday...west winds 10 to 20 knots becoming south gales to
35 knots. waves subsiding to 1 to 3 feet, then building to 5 to
8 feet occasionally to 10 feet. 

$$

fzus63 kmqt 031401
glfls 
expires:202604032000;;763877

open lake forecast for lake superior
national weather service marquette mi
1000 am edt fri apr 3 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...

29.5 inch low pressure over the straights will move to the 
ontario/quebec line at 29.6 inches by late friday morning. as this 
happens, another colorado low moves into kansas at 29.6 inches by 
friday. this low moves into eastern iowa by friday night as 
sprawling 30.7 inch high pressure resides over far northern quebec 
and hudson bay. the low moves through the upper great lakes at 
around 29.6 inches late saturday, with lake superior looking to be 
between the low at 29.3 inches now over northern quebec and a 30.3 
inch high over the great plains by sunday. pressure rises on lake 
superior early next week as the high builds to 30.6 inches over the 
red river valley (of the north) on monday before moving into the 
western great lakes by tuesday.



lsz162-032000-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
1000 am edt fri apr 3 2026 /900 am cdt fri apr 3 2026/

...gale warning in effect from late tonight through saturday
afternoon...

.rest of today...northeast winds 10 to 20 knots increasing to
15 to 25 knots in the afternoon, then veering east late. a chance
of sleet and snow by mid afternoon. waves 3 to 6 feet
occasionally to 8 feet subsiding to 2 to 4 feet, then building to
3 to 5 feet occasionally to 7 feet. 
.tonight...east winds 20 to 30 knots increasing to gales to
40 knots after midnight. a chance of snow, possibly mixed with
sleet through midnight. a chance of rain. snow, possibly mixed
with sleet after midnight. waves building to 10 to 14 feet
occasionally to 18 feet. 
.saturday...east gales to 40 knots becoming northeast gales to
35 knots in the afternoon, then diminishing to 20 to 30 knots
late. rain through early afternoon. snow, possibly mixed with
sleet. a slight chance of rain by mid afternoon. waves subsiding
to 6 to 9 feet occasionally to 11 feet. 
.saturday night...northwest winds 15 to 25 knots. a chance of
snow showers through midnight. waves subsiding to 2 to 4 feet. 
.sunday...northwest winds 10 to 20 knots backing west by mid
afternoon. a slight chance of rain showers by mid afternoon.
waves subsiding to calm to 2 feet. 
.sunday night...west winds 10 to 20 knots becoming northwest
15 to 25 knots after midnight. a chance of rain showers. a chance
of snow showers after midnight. waves building to 1 to 3 feet. 
.monday...north winds 15 to 25 knots becoming northwest 10 to
20 knots. a chance of snow showers. waves building to 3 to 5 feet
occasionally to 7 feet, then subsiding to calm to 2 feet. 
.tuesday...southwest winds 5 to 15 knots becoming south 20 to
30 knots. a chance of rain and snow showers. waves building to
4 to 7 feet occasionally to 9 feet. 

$$