fzus63 kdtx 280755
glflh 
expires:202603281600;;421810

open lake forecast for lake huron
national weather service detroit/pontiac mi
355 am edt sat mar 28 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 weak cold front brings a reinforcing shot of
blustery conditions through saturday morning. winds and waves
then remain in-check with dry and warmer weather sunday and
monday. an extended window for showers and thunderstorms exists
late monday through tuesday. winds and waves trend higher tuesday
with the arrival of a low pressure system.


lhz361-281600-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
355 am edt sat mar 28 2026

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

wave heights are for ice free areas.

$$

fzus63 kdtx 280755
glflh 
expires:202603281600;;421811

open lake forecast for lake huron
national weather service detroit/pontiac mi
355 am edt sat mar 28 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 weak cold front brings a reinforcing shot of
blustery conditions through saturday morning. winds and waves
then remain in-check with dry and warmer weather sunday and
monday. an extended window for showers and thunderstorms exists
late monday through tuesday. winds and waves trend higher tuesday
with the arrival of a low pressure system.


lhz362-363-281600-
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-
355 am edt sat mar 28 2026

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


$$

fzus63 kdtx 280755
glflh 
expires:202603281600;;421812

open lake forecast for lake huron
national weather service detroit/pontiac mi
355 am edt sat mar 28 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 weak cold front brings a reinforcing shot of
blustery conditions through saturday morning. winds and waves
then remain in-check with dry and warmer weather sunday and
monday. an extended window for showers and thunderstorms exists
late monday through tuesday. winds and waves trend higher tuesday
with the arrival of a low pressure system.


lhz462>464-281600-
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-
355 am edt sat mar 28 2026

.today...northwest winds 15 to 20 knots becoming west 5 to
10 knots. waves 4 to 6 feet subsiding to 2 to 4 feet late in the
afternoon. waves occasionally around 8 feet. 
.tonight...south winds 5 to 10 knots becoming southwest 15 to
20 knots. waves 1 to 3 feet building to 2 to 4 feet after
midnight. 
.sunday...southwest winds 15 to 20 knots decreasing to 10 to
15 knots in the late morning and afternoon. waves 2 to 4 feet. 
.sunday night...south winds 10 to 15 knots. waves 2 to 4 feet. 
.monday...southwest winds 5 to 10 knots becoming south 10 to
15 knots late in the afternoon...then increasing to 15 to
20 knots late in the evening. a chance of rain late in the
afternoon. a chance of rain and thunderstorms late in the
evening. waves 1 to 3 feet building to 3 to 5 feet late in the
evening. 
.tuesday...south winds 15 to 20 knots becoming west 20 to
25 knots by midnight. rain likely and a chance of thunderstorms
early in the morning...then rain until early evening. a chance of
rain by midnight. waves 5 to 7 feet. waves occasionally around
10 feet. 
.wednesday...northwest winds 20 to 25 knots becoming north 15 to
20 knots . a chance of rain early in the morning. waves 8 to
12 feet. waves occasionally around 15 feet. 


$$

fzus63 kmkx 280809
glflm 
expires:202603281515;;422714

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
309 am cdt sat mar 28 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...

strong high pressure around 30.7 inches will slowly move 
southeast across southern portions of the lake early this morning,
shifting east southeast of the region in the afternoon. 

winds will shift southwest to south by this afternoon and become 
gusty once again, as low pressure around 29.6 inches develops in 
the central high plains. gusty southwest winds tonight will 
become south and weaken somewhat on sunday, as the low remains in 
the central high plains.

winds will become southerly on monday across at least the southern
half of the lake as a warm front lifts through the area. low 
pressure around 29.5 inches should move northeast across the lake 
tuesday, with winds becoming northwest to north and gusty behind 
the front later tuesday into tuesday night.


lmz080-669-671-673-675-777-779-870-872-874-876-878-281515-
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-
309 am cdt sat mar 28 2026

sheboygan wi to pentwater mi south...

.today...northwest winds 10 to 15 kt becoming west late this
morning, then becoming southwest 10 to 20 kt early this afternoon
becoming south 15 to 25 kt late. waves 4 to 7 ft occasionally to
9 ft subsiding to 4 to 6 ft occasionally to 8 ft. 
.tonight...south winds 15 to 25 kt becoming southwest. waves 4 to
7 ft occasionally to 9 ft. 
.sunday...southwest winds 15 to 25 kt becoming south 10 to 20 kt.
waves 4 to 7 ft occasionally to 9 ft subsiding to 4 to 6 ft
occasionally to 8 ft. 
.sunday night...south winds 10 to 20 kt becoming southwest. waves
3 to 5 ft. 
.monday...south winds 10 to 15 kt increasing to 10 to 20 kt.
waves 2 to 4 ft. 
.monday night...south winds 15 to 25 kt increasing to 30 kt.
chance of rain showers and thunderstorms. waves 3 to 5 ft
building to 6 to 9 ft occasionally to 12 ft. 
.tuesday...southwest winds to 30 kt. chance of rain showers.
waves 6 to 9 ft occasionally to 12 ft. 
.wednesday...north winds to 30 kt. waves 8 to 12 ft occasionally
to 16 ft.  

$$

fzus63 kmkx 280809
glflm 
expires:202603281515;;422713

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
309 am cdt sat mar 28 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...

strong high pressure around 30.7 inches will slowly move 
southeast across southern portions of the lake early this morning,
shifting east southeast of the region in the afternoon. 

winds will shift southwest to south by this afternoon and become 
gusty once again, as low pressure around 29.6 inches develops in 
the central high plains. gusty southwest winds tonight will 
become south and weaken somewhat on sunday, as the low remains in 
the central high plains.

winds will become southerly on monday across at least the southern
half of the lake as a warm front lifts through the area. low 
pressure around 29.5 inches should move northeast across the lake 
tuesday, with winds becoming northwest to north and gusty behind 
the front later tuesday into tuesday night.


lmz261-362-364-366-563-565-567-868-281515-
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-
309 am cdt sat mar 28 2026

sheboygan wi to pentwater mi north...

.today...west winds 10 to 20 kt becoming southwest 15 to 25 kt.
waves 3 to 5 ft building to 4 to 6 ft occasionally to 8 ft. 
.tonight...south winds 15 to 25 kt becoming southwest to 30 kt.
waves 5 to 8 ft occasionally to 10 ft. 
.sunday...southwest winds 15 to 25 kt becoming south 10 to 20 kt.
waves 4 to 7 ft occasionally to 9 ft subsiding to 4 to 6 ft
occasionally to 8 ft. 
.sunday night...south winds 10 to 20 kt becoming southwest 10 to
15 kt. waves 3 to 5 ft. 
.monday...east winds 10 to 15 kt increasing to 10 to 20 kt. waves
2 to 4 ft. 
.monday night...east winds 10 to 20 kt becoming southeast 15 to
25 kt. rain showers likely with a chance of thunderstorms. waves
3 to 5 ft building to 5 to 8 ft occasionally to 10 ft. 
.tuesday...south winds 15 to 25 kt veering to northwest. rain
showers likely. waves 5 to 8 ft occasionally to 10 ft. 
.wednesday...north winds to 30 kt diminishing to 15 to 25 kt.
waves 8 to 11 ft occasionally to 14 ft subsiding to 7 to 10 ft
occasionally to 13 ft.  

$$

fzus63 kmqt 280801
glfls 
expires:202603282000;;422051

open lake forecast for lake superior
national weather service marquette mi
400 am edt sat mar 28 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...

a 30.7 inch high over the mid-mississippi valley this morning moves 
into the ohio river valley today, eventually weakening to 30.5 
inches by this evening as it continues eastward; the high eventually 
moves offshore into the atlantic by sunday. upstream on sunday, a 
29.6 inch low organizes over the central plains, lifting a 30.0 inch 
trough over lake superior by sunday night. this trough lingers over 
the great lakes and slowly deepens with time early this week, before 
the low pushes through at 29.5 inches on tuesday. as the low lifts 
into canada late tuesday, 30.3 inch high pressure builds over the 
northern plains, gradually building pressure over the upper great 
lakes by wednesday as the high presses east through ontario at 
around 30.5 inches.



lsz264-282000-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
401 am edt sat mar 28 2026

.early this morning...northwest winds 15 to 25 knots. freezing
spray. waves 4 to 7 feet occasionally to 9 feet subsiding to 3 to
6 feet occasionally to 8 feet. 
.today...west winds 15 to 25 knots becoming southwest 10 to
20 knots in the afternoon, then backing south late. a slight
chance of snow showers by mid afternoon. waves subsiding to 1 to
3 feet. 
.tonight...south winds 5 to 15 knots backing northeast after
midnight. waves subsiding to calm to 2 feet. 
.sunday...northeast winds 5 to 15 knots veering east in the
afternoon. waves calm to 2 feet. 
.sunday night...east winds 5 to 15 knots backing northeast after
midnight. waves calm to 2 feet. 
.monday...northeast winds 5 to 15 knots becoming east 10 to
20 knots by mid afternoon. waves building to 1 to 3 feet. 
.monday night...east winds 15 to 25 knots. a chance of rain and
snow showers. waves building to 4 to 7 feet occasionally to
9 feet. 
.tuesday...northeast winds 20 to 30 knots becoming north gales to
35 knots. a chance of rain showers. freezing spray. waves
building to 6 to 10 feet occasionally to 13 feet. 
.wednesday...north winds 20 to 30 knots becoming southeast 15 to
25 knots. freezing spray. waves subsiding to calm to 2 feet, then
building to 2 to 4 feet. 

$$

fzus63 kmqt 280801
glfls 
expires:202603282000;;422052

open lake forecast for lake superior
national weather service marquette mi
400 am edt sat mar 28 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...

a 30.7 inch high over the mid-mississippi valley this morning moves 
into the ohio river valley today, eventually weakening to 30.5 
inches by this evening as it continues eastward; the high eventually 
moves offshore into the atlantic by sunday. upstream on sunday, a 
29.6 inch low organizes over the central plains, lifting a 30.0 inch 
trough over lake superior by sunday night. this trough lingers over 
the great lakes and slowly deepens with time early this week, before 
the low pushes through at 29.5 inches on tuesday. as the low lifts 
into canada late tuesday, 30.3 inch high pressure builds over the 
northern plains, gradually building pressure over the upper great 
lakes by wednesday as the high presses east through ontario at 
around 30.5 inches.



lsz265-282000-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
401 am edt sat mar 28 2026

.early this morning...northwest winds 20 to 30 knots. waves 3 to
6 feet occasionally to 8 feet. 
.today...west winds 15 to 25 knots becoming southwest 10 to
20 knots in the afternoon, then becoming south 15 to 25 knots
late. a chance of snow showers by mid afternoon. waves subsiding
to calm to 2 feet. 
.tonight...south winds 10 to 20 knots becoming north 5 to
15 knots late. waves calm to 2 feet. 
.sunday...east winds 5 to 15 knots increasing to 10 to 20 knots
in the afternoon. waves calm to 2 feet. 
.sunday night...southeast winds 10 to 20 knots backing north
after midnight. waves calm to 2 feet. 
.monday...northeast winds 10 to 20 knots veering east by mid
afternoon. waves building to 1 to 3 feet. 
.monday night...east winds 20 to 30 knots. rain showers, possibly
mixed with snow through midnight, then a chance of rain showers
after midnight. waves building to 4 to 7 feet occasionally to
9 feet. 
.tuesday...north gales to 35 knots. a chance of rain showers.
freezing spray. waves building to 10 to 14 feet occasionally to
18 feet, then subsiding to 9 to 12 feet occasionally to 15 feet. 
.wednesday...north winds 20 to 30 knots becoming southeast 15 to
25 knots. freezing spray. waves subsiding to calm to 2 feet, then
building to 3 to 5 feet occasionally to 7 feet. 

$$

fzus63 kmqt 280801
glfls 
expires:202603282000;;422053

open lake forecast for lake superior
national weather service marquette mi
400 am edt sat mar 28 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...

a 30.7 inch high over the mid-mississippi valley this morning moves 
into the ohio river valley today, eventually weakening to 30.5 
inches by this evening as it continues eastward; the high eventually 
moves offshore into the atlantic by sunday. upstream on sunday, a 
29.6 inch low organizes over the central plains, lifting a 30.0 inch 
trough over lake superior by sunday night. this trough lingers over 
the great lakes and slowly deepens with time early this week, before 
the low pushes through at 29.5 inches on tuesday. as the low lifts 
into canada late tuesday, 30.3 inch high pressure builds over the 
northern plains, gradually building pressure over the upper great 
lakes by wednesday as the high presses east through ontario at 
around 30.5 inches.



lsz266-282000-
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 sat mar 28 2026

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

$$

fzus63 kmqt 280801
glfls 
expires:202603282000;;422054

open lake forecast for lake superior
national weather service marquette mi
400 am edt sat mar 28 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...

a 30.7 inch high over the mid-mississippi valley this morning moves 
into the ohio river valley today, eventually weakening to 30.5 
inches by this evening as it continues eastward; the high eventually 
moves offshore into the atlantic by sunday. upstream on sunday, a 
29.6 inch low organizes over the central plains, lifting a 30.0 inch 
trough over lake superior by sunday night. this trough lingers over 
the great lakes and slowly deepens with time early this week, before 
the low pushes through at 29.5 inches on tuesday. as the low lifts 
into canada late tuesday, 30.3 inch high pressure builds over the 
northern plains, gradually building pressure over the upper great 
lakes by wednesday as the high presses east through ontario at 
around 30.5 inches.



lsz267-282000-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
401 am edt sat mar 28 2026

.early this morning...northwest winds 20 to 30 knots. freezing
spray. a chance of snow showers. waves 6 to 9 feet occasionally
to 11 feet. 
.today...west winds 20 to 30 knots diminishing to 15 to 25 knots
in the afternoon, then backing southwest late. freezing spray
through early afternoon. a chance of snow showers. waves
subsiding to 2 to 4 feet. 
.tonight...south winds 15 to 25 knots becoming southwest 10 to
20 knots after midnight. a slight chance of snow showers through
midnight. waves building to 3 to 5 feet occasionally to 7 feet,
then subsiding to calm to 2 feet. 
.sunday...southeast winds 10 to 20 knots becoming east 5 to
15 knots in the afternoon, then veering southeast late. waves
calm to 2 feet. 
.sunday night...southeast winds 10 to 20 knots becoming north
5 to 15 knots after midnight. waves calm to 2 feet. 
.monday...northeast winds 5 to 15 knots becoming east 10 to
20 knots by mid afternoon. waves calm to 2 feet. 
.monday night...east winds 15 to 25 knots increasing to 20 to
30 knots after midnight. rain showers likely. waves building to
3 to 5 feet occasionally to 7 feet. 
.tuesday...north gales to 35 knots. a chance of rain showers.
freezing spray. waves building to 8 to 12 feet occasionally to
15 feet. 
.wednesday...north winds 20 to 30 knots becoming east 10 to
20 knots. freezing spray. waves subsiding to 1 to 3 feet, then
building to 2 to 4 feet. 

$$

fzus63 kmqt 280801
glfls 
expires:202603282000;;422049

open lake forecast for lake superior
national weather service marquette mi
400 am edt sat mar 28 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...

a 30.7 inch high over the mid-mississippi valley this morning moves 
into the ohio river valley today, eventually weakening to 30.5 
inches by this evening as it continues eastward; the high eventually 
moves offshore into the atlantic by sunday. upstream on sunday, a 
29.6 inch low organizes over the central plains, lifting a 30.0 inch 
trough over lake superior by sunday night. this trough lingers over 
the great lakes and slowly deepens with time early this week, before 
the low pushes through at 29.5 inches on tuesday. as the low lifts 
into canada late tuesday, 30.3 inch high pressure builds over the 
northern plains, gradually building pressure over the upper great 
lakes by wednesday as the high presses east through ontario at 
around 30.5 inches.



lsz162-282000-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
401 am edt sat mar 28 2026 /301 am cdt sat mar 28 2026/

.early this morning...west winds 10 to 20 knots. waves 1 to
3 feet. 
.today...southwest winds 10 to 20 knots increasing to 15 to
25 knots in the afternoon, then diminishing to 10 to 20 knots
late. a slight chance of snow showers. waves subsiding to calm to
2 feet, then building to 1 to 3 feet. 
.tonight...east winds 5 to 15 knots backing northeast after
midnight. waves subsiding to calm to 2 feet. 
.sunday...northeast winds 10 to 20 knots diminishing to 5 to
15 knots late. waves calm to 2 feet. 
.sunday night...northeast winds 5 to 15 knots. waves calm to
2 feet. 
.monday...northeast winds 10 to 20 knots increasing to 15 to
25 knots by mid afternoon. a chance of snow showers by mid
afternoon. waves building to 3 to 5 feet occasionally to 7 feet. 
.monday night...northeast winds 15 to 25 knots. a chance of snow
showers through midnight. a chance of rain showers. waves
building to 3 to 6 feet occasionally to 8 feet. 
.tuesday...north winds 15 to 25 knots increasing to 20 to
30 knots. a chance of rain showers. waves building to 4 to 7 feet
occasionally to 9 feet, then subsiding to 3 to 6 feet
occasionally to 8 feet. 
.wednesday...east winds 10 to 20 knots. waves subsiding to calm
to 2 feet, then building to 2 to 4 feet. 

$$

fzus63 kmqt 280801
glfls 
expires:202603282000;;422050

open lake forecast for lake superior
national weather service marquette mi
400 am edt sat mar 28 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...

a 30.7 inch high over the mid-mississippi valley this morning moves 
into the ohio river valley today, eventually weakening to 30.5 
inches by this evening as it continues eastward; the high eventually 
moves offshore into the atlantic by sunday. upstream on sunday, a 
29.6 inch low organizes over the central plains, lifting a 30.0 inch 
trough over lake superior by sunday night. this trough lingers over 
the great lakes and slowly deepens with time early this week, before 
the low pushes through at 29.5 inches on tuesday. as the low lifts 
into canada late tuesday, 30.3 inch high pressure builds over the 
northern plains, gradually building pressure over the upper great 
lakes by wednesday as the high presses east through ontario at 
around 30.5 inches.



lsz263-282000-
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 sat mar 28 2026

.early this morning...west winds 15 to 25 knots. waves 3 to
6 feet occasionally to 8 feet. 
.today...west winds 10 to 20 knots backing south late. a slight
chance of snow showers by mid afternoon. waves subsiding to 1 to
3 feet. 
.tonight...south winds 5 to 15 knots backing northeast after
midnight. waves subsiding to calm to 2 feet. 
.sunday...northeast winds 5 to 15 knots veering east in the
afternoon, then backing northeast late. waves calm to 2 feet. 
.sunday night...northeast winds 5 to 15 knots. waves calm to
2 feet. 
.monday...northeast winds 5 to 15 knots becoming east 15 to
25 knots by mid afternoon. waves building to 3 to 5 feet
occasionally to 7 feet. 
.monday night...east winds 15 to 25 knots. a chance of rain
showers, possibly mixed with snow. waves building to 4 to 7 feet
occasionally to 9 feet. 
.tuesday...north winds 20 to 30 knots. a chance of rain showers.
freezing spray. waves building to 5 to 9 feet occasionally to
11 feet. 
.wednesday...north winds 15 to 25 knots becoming southeast 10 to
20 knots. waves subsiding to calm to 2 feet, then building to
2 to 4 feet. 

$$