fzus61 kbuf 291409
glflo 
expires:202603292100;;487364

open lake forecast for lake ontario
national weather service buffalo ny
1009 am edt sun mar 29 2026

for waters beyond five nautical miles of shore on lake ontario

waves are the significant wave height - the average of the highest
1/3 of the wave spectrum. occasional wave height is the average of
the highest 1/10 of the wave spectrum.

.synopsis...a strong 30.7 inch high over the ohio valley will move 
off the mid atlantic coast today. a 30.0 inch trough will sag 
southward across eastern canada monday, then move across the eastern 
great lakes monday night, followed by a deeper 29.5 inch low tuesday 
night into early wednesday. another 30.7 inch high across quebec is 
then forecast to extend down across the lake thursday.


loz062-292100-
lake ontario open waters from the niagara river to hamlin beach-
1009 am edt sun mar 29 2026

.this afternoon...southwest winds 15 to 20 knots. waves 2 to
4 feet. 
.tonight...southwest winds 10 to 15 knots. waves 1 to 3 feet. 
.monday...southwest winds 10 to 15 knots. waves 2 to 3 feet. 
.monday night...southwest winds 10 to 15 knots becoming south. a
chance of showers in the evening, then showers overnight. waves
1 to 3 feet. 
.tuesday...south winds 15 to 25 knots becoming southwest. showers
with a chance of thunderstorms. waves 2 to 4 feet building to
3 to 6 feet. 
.wednesday...west winds 15 to 20 knots becoming northeast. rain
showers during the day, then a chance of rain showers wednesday
night. waves 3 to 6 feet subsiding to 3 to 5 feet. 
.thursday...northeast winds to 30 knots becoming east. a chance
of rain and snow showers during the day, then rain and snow
showers likely thursday night. waves 5 to 8 feet building to 6 to
10 feet. waves occasionally around 13 feet. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kbuf 291409
glflo 
expires:202603292100;;487365

open lake forecast for lake ontario
national weather service buffalo ny
1009 am edt sun mar 29 2026

for waters beyond five nautical miles of shore on lake ontario

waves are the significant wave height - the average of the highest
1/3 of the wave spectrum. occasional wave height is the average of
the highest 1/10 of the wave spectrum.

.synopsis...a strong 30.7 inch high over the ohio valley will move 
off the mid atlantic coast today. a 30.0 inch trough will sag 
southward across eastern canada monday, then move across the eastern 
great lakes monday night, followed by a deeper 29.5 inch low tuesday 
night into early wednesday. another 30.7 inch high across quebec is 
then forecast to extend down across the lake thursday.


loz063>065-292100-
lake ontario open waters from hamlin beach to the saint lawrence
river-
1009 am edt sun mar 29 2026

.this afternoon...southwest winds 15 to 20 knots diminishing to
10 to 15 knots. waves 2 to 4 feet subsiding to 1 to 3 feet. 
.tonight...southwest winds 5 to 15 knots becoming south. waves
1 to 3 feet. 
.monday...southwest winds 10 to 15 knots. waves 1 to 3 feet. 
.monday night...southwest winds 5 to 15 knots becoming southeast.
a chance of rain showers in the evening, then rain showers likely
overnight. waves 1 to 3 feet. 
.tuesday...south winds 10 to 15 knots becoming southwest 15 to
20 knots. showers with a chance of thunderstorms. waves 1 to
3 feet building to 3 to 6 feet. 
.wednesday...west winds 15 to 20 knots becoming northeast. rain
showers with a chance of thunderstorms during the day, then a
chance of rain showers wednesday night. waves 3 to 6 feet
subsiding to 3 to 5 feet. 
.thursday...northeast winds 15 to 25 knots becoming east. a
chance of rain and snow showers during the day, then rain and
snow showers likely thursday night. waves 3 to 6 feet building to
5 to 8 feet. waves occasionally around 10 feet. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 291330
glfle 
expires:202603292015;;486412

open lake forecast for lake erie
national weather service cleveland oh
930 am edt sun mar 29 2026

for waters beyond five nautical miles of shore on lake erie

waves are the significant wave height - the average of the highest
1/3 of the wave spectrum. occasional wave height is the average of
the highest 1/10 of the wave spectrum.

.synopsis...
high pressure 30.50 inches will shift off the east coast today 
and tonight. a cold front will approach from the northwest monday 
into tuesday before moving across the lake tuesday night. low 
pressure 30.10 will lift into the ohio valley late in the week as 
the cold front stalls and waivers across the region.


lez162>164-292015-
detroit river lt. to maumee bay oh to reno beach oh beyond 5nm
offshoreline to us-canadian border-
reno beach to the islands oh beyond 5nm off shoreline to us-
canadian border-
the islands to vermilion oh beyond 5 nm off shoreline to us-
canadian border-
930 am edt sun mar 29 2026

.this afternoon...southwest winds 10 to 15 knots becoming south.
waves 1 to 2 feet. 
.tonight...south winds 10 to 15 knots becoming southwest. waves
1 to 2 feet. 
.monday...southwest winds 10 to 15 knots. waves 1 to 2 feet. 
.monday night...southwest winds 10 to 15 knots increasing to
15 to 20 knots. a chance of rain. waves 1 to 3 feet building to
2 to 4 feet. 
.tuesday...southwest winds 15 to 20 knots becoming west. rain
likely during the day, then rain with a chance of thunderstorms
tuesday night. waves 2 to 4 feet. 
.wednesday...northwest winds 15 to 25 knots becoming northeast. a
chance of rain. waves 2 to 4 feet building to 4 to 7 feet. waves
occasionally around 9 feet. 
.thursday...northeast winds 15 to 25 knots becoming east. rain
likely. waves 6 to 9 feet subsiding to 4 to 7 feet. waves
occasionally around 11 feet. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 291330
glfle 
expires:202603292015;;486413

open lake forecast for lake erie
national weather service cleveland oh
930 am edt sun mar 29 2026

for waters beyond five nautical miles of shore on lake erie

waves are the significant wave height - the average of the highest
1/3 of the wave spectrum. occasional wave height is the average of
the highest 1/10 of the wave spectrum.

.synopsis...
high pressure 30.50 inches will shift off the east coast today 
and tonight. a cold front will approach from the northwest monday 
into tuesday before moving across the lake tuesday night. low 
pressure 30.10 will lift into the ohio valley late in the week as 
the cold front stalls and waivers across the region.


lez165>167-292015-
vermilion to avon point oh beyond 5 nm off shoreline to us-
canadian border-
avon point to willowick oh beyond 5 nm off shoreline to us-
canadian border-willowick to geneva-on-the-
lake oh beyond 5nm off shoreline to us-canadian border-
930 am edt sun mar 29 2026

.this afternoon...southwest winds 5 to 15 knots. waves 1 to
3 feet. 
.tonight...south winds 5 to 15 knots becoming southwest. waves
1 to 3 feet. 
.monday...southwest winds 10 to 15 knots. waves 2 to 4 feet
subsiding to 1 to 3 feet. 
.monday night...southwest winds 10 to 15 knots increasing to
15 to 20 knots. rain likely. waves 1 to 3 feet building to 3 to
5 feet. 
.tuesday...southwest winds 15 to 20 knots becoming west. rain
likely during the day, then rain with a chance of thunderstorms
tuesday night. waves 3 to 6 feet. 
.wednesday...northwest winds 15 to 25 knots becoming northeast.
rain likely during the day, then a chance of rain wednesday
night. waves 3 to 5 feet building to 4 to 7 feet. waves
occasionally around 9 feet. 
.thursday...northeast winds to 30 knots becoming east 15 to
25 knots. rain likely. waves 6 to 10 feet subsiding to 5 to
8 feet. waves occasionally around 13 feet. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 291330
glfle 
expires:202603292015;;486414

open lake forecast for lake erie
national weather service cleveland oh
930 am edt sun mar 29 2026

for waters beyond five nautical miles of shore on lake erie

waves are the significant wave height - the average of the highest
1/3 of the wave spectrum. occasional wave height is the average of
the highest 1/10 of the wave spectrum.

.synopsis...
high pressure 30.50 inches will shift off the east coast today 
and tonight. a cold front will approach from the northwest monday 
into tuesday before moving across the lake tuesday night. low 
pressure 30.10 will lift into the ohio valley late in the week as 
the cold front stalls and waivers across the region.


lez061-168-169-292015-
ripley to buffalo ny extending from 5nm off shoreline to us-
canadian border-geneva-on-the-
lake to conneaut oh beyond 5 nm off shoreline to us-
canadian border-
conneaut oh to ripley ny beyond 5 nm off shoreline to us-
canadian border-
930 am edt sun mar 29 2026

.this afternoon...southwest winds 5 to 15 knots. waves 2 feet or
less. 
.tonight...south winds 5 to 15 knots becoming southwest. waves
1 to 3 feet. 
.monday...southwest winds 10 to 15 knots. waves 1 to 3 feet. 
.monday night...southwest winds 5 to 15 knots. rain likely. waves
1 to 3 feet. 
.tuesday...southwest winds 15 to 20 knots. rain likely during the
day, then rain with a chance of thunderstorms tuesday night.
waves 3 to 5 feet. 
.wednesday...west winds 10 to 15 knots becoming northeast 15 to
20 knots. a chance of rain. waves 3 to 5 feet subsiding to 2 to
4 feet. 
.thursday...northeast winds 15 to 20 knots becoming east. a
chance of rain during the day, then rain likely thursday night.
waves 3 to 6 feet. 

winds and waves higher in and near thunderstorms.

$$

fzus63 kdtx 291349
glfsc 
expires:202603292200;;486788

lake st clair forecast
national weather service detroit/pontiac mi
949 am edt sun mar 29 2026

waves are the significant wave height - the average of the highest
1/3 of the wave spectrum. occasional wave height is the average of
the highest 1/10 of the wave spectrum.

.synopsis...high pressure, 30.70 inches, drifts across the ohio
valley today. westerly winds then become southwesterly ahead of
the next cold front that sweeps across the great lakes tuesday
night.


lcz460-292200-
lake st clair-
949 am edt sun mar 29 2026

.rest of today...southwest winds 10 to 15 knots. mostly cloudy.
waves 2 feet or less.
.tonight...south winds 10 to 15 knots. partly cloudy. waves 2 feet
or less.
.monday...southwest winds 10 to 15 knots. partly sunny. waves 2 feet
or less.
.monday night...south winds 10 to 15 knots becoming southwest 15 to
20 knots after midnight. mostly cloudy. a chance of light rain.
light rain likely and a chance of thunderstorms after midnight.
waves 1 to 3 feet.
.tuesday...southwest winds 15 to 20 knots increasing to 20 to 25
knots with gusts to 30 knots in the afternoon...then diminishing to
15 to 20 knots with gusts to 30 knots in the evening. light rain
likely and a chance of thunderstorms in the morning...then light
rain and a chance of thunderstorms in the afternoon and evening.
waves 1 to 3 feet building to 2 to 4 feet in the afternoon and
evening. a small craft advisory may be needed.
.wednesday...northeast winds 15 to 20 knots. mostly cloudy with rain
and a chance of thunderstorms. waves 1 to 3 feet.
.thursday...northeast winds 20 to 25 knots. mostly cloudy with light
rain likely and a chance of light snow. waves 1 to 3 feet.

$$

fzus63 kdtx 291348
glflh 
expires:202603292200;;486786

open lake forecast for lake huron
national weather service detroit/pontiac mi
948 am edt sun mar 29 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...high pressure, 30.70 inches, drifts across the ohio
valley today. westerly winds then become southwesterly ahead of
the next cold front that sweeps across the great lakes tuesday
night.


lhz462>464-292200-
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-
948 am edt sun mar 29 2026

.rest of today...south winds 10 to 15 knots. waves 2 to 4 feet
subsiding to 1 to 3 feet late in the afternoon. 
.tonight...south winds 10 to 15 knots. waves 2 to 4 feet. 
.monday...southwest winds 10 to 15 knots decreasing to 5 to
10 knots in the late morning and afternoon. waves 1 to 3 feet. 
.monday night...east winds 5 to 10 knots increasing to 10 to
15 knots by midnight...then veering to the south after midnight.
a chance of rain in the evening...then a chance of rain and
thunderstorms after midnight. waves 1 to 3 feet building to 2 to
4 feet after midnight. 
.tuesday...southeast winds 10 to 15 knots increasing to 15 to
20 knots late in the morning...then veering to the south late in
the afternoon veering to the west late in the evening. rain and a
chance of thunderstorms. waves 3 to 5 feet building to 5 to
7 feet late in the evening. waves occasionally around 10 feet. 
.wednesday...northwest winds 20 to 25 knots becoming north 15 to
20 knots until early evening...then veering to the northeast by
midnight. a chance of rain early in the morning. waves 6 to
9 feet. waves occasionally around 12 feet. 
.thursday...northeast winds 20 to 25 knots decreasing to 15 to
20 knots until early evening...then becoming east 20 to 25 knots
by midnight. a chance of snow. a chance of rain until early
evening...then rain likely by midnight. waves 6 to 9 feet. waves
occasionally around 12 feet. 


$$

fzus63 kdtx 291348
glflh 
expires:202603292200;;486785

open lake forecast for lake huron
national weather service detroit/pontiac mi
948 am edt sun mar 29 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...high pressure, 30.70 inches, drifts across the ohio
valley today. westerly winds then become southwesterly ahead of
the next cold front that sweeps across the great lakes tuesday
night.


lhz362-363-292200-
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-
948 am edt sun mar 29 2026

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


$$

fzus63 kdtx 291348
glflh 
expires:202603292200;;486784

open lake forecast for lake huron
national weather service detroit/pontiac mi
948 am edt sun mar 29 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...high pressure, 30.70 inches, drifts across the ohio
valley today. westerly winds then become southwesterly ahead of
the next cold front that sweeps across the great lakes tuesday
night.


lhz361-292200-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
948 am edt sun mar 29 2026

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

wave heights are for ice free areas.

$$

fzus63 kmkx 291346
glflm 
expires:202603292115;;486748

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
846 am cdt sun mar 29 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...

breezy southwest winds will continue through today as a cold 
front begins to approach the waters from the north. the front will
gradually advance south across lake michigan late tonight through
tuesday. this will result in generally east- northeast winds 
across the northern half of the lake with southerly winds further 
south. periods of showers and thunderstorms will accompany the 
slow-moving front, with a few stronger storms possible monday 
night and once again on tuesday. large hail would be the primary 
threat in any stronger storms.

winds will trend northerly behind the departing cold front tuesday 
evening through wednesday. will be monitoring trends for a few gusts 
approaching gale force tuesday evening/night, with the current 
expectation being for any such gusts to be isolated. 30.8 inch 
high pressure will shift from ontario to quebec through the late 
week time period as 29.8 inch low pressure builds into the ohio 
river valley, allowing winds to trend east-northeasterly. 
additional rain and snow will accompany the approaching/passing 
area of low pressure thursday into next weekend.


lmz261-362-364-366-563-565-567-868-292115-
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-
846 am cdt sun mar 29 2026

sheboygan wi to pentwater mi north...

.rest of today...southwest winds 10 to 20 kt becoming south 15 to
25 kt. waves 4 to 6 ft occasionally to 8 ft. 
.tonight...south winds 15 to 25 kt becoming southwest 10 to
20 kt. waves 4 to 6 ft occasionally to 8 ft. 
.monday...southwest winds 10 to 20 kt backing to east 10 to
15 kt. waves 2 to 4 ft subsiding to 1 to 3 ft. 
.monday night...east winds 10 to 20 kt. rain likely in the
evening, then rain likely with a chance of thunderstorms
overnight. waves 2 to 4 ft building to 3 to 5 ft. 
.tuesday...east winds 10 to 20 kt backing to north. rain likely
with a chance of thunderstorms. waves 4 to 6 ft occasionally to
8 ft building to 4 to 7 ft occasionally to 9 ft. 
.tuesday night...northwest winds to 30 kt. chance of rain. waves
5 to 8 ft occasionally to 10 ft. 
.wednesday...north winds to 30 kt diminishing to 15 to 25 kt.
waves 5 to 8 ft occasionally to 10 ft. 
.thursday...east winds to 30 kt becoming northeast 15 to 25 kt.
chance of snow. waves 6 to 9 ft occasionally to 12 ft.  

$$

fzus63 kmkx 291346
glflm 
expires:202603292115;;486749

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
846 am cdt sun mar 29 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...

breezy southwest winds will continue through today as a cold 
front begins to approach the waters from the north. the front will
gradually advance south across lake michigan late tonight through
tuesday. this will result in generally east- northeast winds 
across the northern half of the lake with southerly winds further 
south. periods of showers and thunderstorms will accompany the 
slow-moving front, with a few stronger storms possible monday 
night and once again on tuesday. large hail would be the primary 
threat in any stronger storms.

winds will trend northerly behind the departing cold front tuesday 
evening through wednesday. will be monitoring trends for a few gusts 
approaching gale force tuesday evening/night, with the current 
expectation being for any such gusts to be isolated. 30.8 inch 
high pressure will shift from ontario to quebec through the late 
week time period as 29.8 inch low pressure builds into the ohio 
river valley, allowing winds to trend east-northeasterly. 
additional rain and snow will accompany the approaching/passing 
area of low pressure thursday into next weekend.


lmz080-669-671-673-675-777-779-870-872-874-876-878-292115-
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-
846 am cdt sun mar 29 2026

sheboygan wi to pentwater mi south...

.rest of today...south winds 10 to 20 kt increasing to 15 to
25 kt. waves 3 to 5 ft. 
.tonight...south winds 15 to 25 kt becoming southwest 10 to
20 kt. waves 3 to 5 ft. 
.monday...southwest winds 10 to 20 kt becoming south. waves 2 to
4 ft. 
.monday night...south winds 10 to 20 kt becoming southwest 15 to
25 kt. chance of rain and thunderstorms in the evening, then rain
likely with a chance of thunderstorms overnight. waves 2 to 4 ft
building to 4 to 6 ft occasionally to 8 ft. 
.tuesday...south winds to 30 kt becoming southwest. rain likely
in the morning, then rain with a chance of thunderstorms in the
afternoon. waves 4 to 7 ft occasionally to 9 ft. 
.tuesday night...northwest winds to 30 kt becoming north. chance
of rain and thunderstorms. waves 6 to 9 ft occasionally to 12 ft.
.wednesday...north winds to 30 kt diminishing to 15 to 25 kt.
waves 6 to 9 ft occasionally to 12 ft. 
.thursday...east winds to 30 kt becoming northeast. chance of
rain and snow. waves 8 to 11 ft occasionally to 14 ft.  

$$

fzus63 kmqt 291401
glfls 
expires:202603292000;;486982

open lake forecast for lake superior
national weather service marquette mi
1000 am edt sun mar 29 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 29.8 inch low over the central plains this morning lifts a 30.0 
inch trough over lake superior by this afternoon. this trough 
lingers over the great lakes and slowly deepens with time early this 
week before the low pushes through at 29.6 inches on tuesday. as the 
low tracks along the st. lawrence seaway tuesday night, 30.3 inch 
high pressure builds over the northern plains, gradually building 
pressure over northern ontario to 30.6 inches by wednesday. by 
thursday, the high builds to 30.8 inches over northern quebec while 
a weak 29.9 inch low passes over the southern great lakes basin and 
a 29.3 inch low pressure organizes in the lee of the rockies.



lsz264-292000-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
1000 am edt sun mar 29 2026

.rest of today...east winds 5 to 15 knots. waves calm to 2 feet. 
.tonight...east winds 5 to 15 knots backing north late. waves
calm to 2 feet. 
.monday...northeast winds 5 to 15 knots becoming east 10 to
20 knots late. waves building to 1 to 3 feet. 
.monday night...east winds 15 to 25 knots. a chance of snow
showers, possibly mixed with rain and freezing rain. waves
building to 4 to 7 feet occasionally to 9 feet. 
.tuesday...northeast winds 20 to 30 knots diminishing to 15 to
25 knots by mid afternoon. freezing spray through early
afternoon. a chance of snow showers. waves building to 5 to
8 feet occasionally to 10 feet, then subsiding to 3 to 6 feet
occasionally to 8 feet. 
.tuesday night...north winds 15 to 25 knots. freezing spray.
waves subsiding to 2 to 4 feet. 
.wednesday...north winds 10 to 20 knots becoming east 15 to
25 knots. waves subsiding to calm to 2 feet, then building to
2 to 4 feet. 
.thursday...east winds 15 to 25 knots increasing to 20 to
30 knots. waves building to 6 to 9 feet occasionally to 11 feet. 

$$

fzus63 kmqt 291401
glfls 
expires:202603292000;;486983

open lake forecast for lake superior
national weather service marquette mi
1000 am edt sun mar 29 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 29.8 inch low over the central plains this morning lifts a 30.0 
inch trough over lake superior by this afternoon. this trough 
lingers over the great lakes and slowly deepens with time early this 
week before the low pushes through at 29.6 inches on tuesday. as the 
low tracks along the st. lawrence seaway tuesday night, 30.3 inch 
high pressure builds over the northern plains, gradually building 
pressure over northern ontario to 30.6 inches by wednesday. by 
thursday, the high builds to 30.8 inches over northern quebec while 
a weak 29.9 inch low passes over the southern great lakes basin and 
a 29.3 inch low pressure organizes in the lee of the rockies.



lsz265-292000-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
1000 am edt sun mar 29 2026

.rest of today...east winds 5 to 15 knots increasing to 10 to
20 knots late. waves calm to 2 feet. 
.tonight...east winds 10 to 20 knots backing north after
midnight. waves calm to 2 feet. 
.monday...northeast winds 10 to 20 knots veering east late. waves
building to 1 to 3 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...east winds 20 to 30 knots becoming northeast 15 to
25 knots by mid afternoon. a chance of rain showers through early
afternoon. a chance of snow showers. waves building to 5 to
8 feet occasionally to 10 feet, then subsiding to 3 to 6 feet
occasionally to 8 feet. 
.tuesday night...north winds 20 to 30 knots. freezing spray after
midnight. waves 3 to 6 feet occasionally to 8 feet. 
.wednesday...north winds 10 to 20 knots becoming east 15 to
25 knots. freezing spray. waves subsiding to calm to 2 feet, then
building to 3 to 6 feet occasionally to 8 feet. 
.thursday...east winds 20 to 30 knots. freezing spray. a chance
of snow showers. waves building to 7 to 10 feet occasionally to
13 feet. 

$$

fzus63 kmqt 291401
glfls 
expires:202603292000;;486980

open lake forecast for lake superior
national weather service marquette mi
1000 am edt sun mar 29 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 29.8 inch low over the central plains this morning lifts a 30.0 
inch trough over lake superior by this afternoon. this trough 
lingers over the great lakes and slowly deepens with time early this 
week before the low pushes through at 29.6 inches on tuesday. as the 
low tracks along the st. lawrence seaway tuesday night, 30.3 inch 
high pressure builds over the northern plains, gradually building 
pressure over northern ontario to 30.6 inches by wednesday. by 
thursday, the high builds to 30.8 inches over northern quebec while 
a weak 29.9 inch low passes over the southern great lakes basin and 
a 29.3 inch low pressure organizes in the lee of the rockies.



lsz162-292000-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
1000 am edt sun mar 29 2026 /900 am cdt sun mar 29 2026/

.rest of today...northeast winds 5 to 15 knots increasing to
10 to 20 knots late. waves 1 to 3 feet. 
.tonight...northeast winds 5 to 15 knots. waves subsiding to calm
to 2 feet. 
.monday...northeast winds 10 to 20 knots becoming east 15 to
25 knots in the afternoon, then becoming northeast 20 to 30 knots
late. a slight chance of rain and snow showers, possibly mixed
with freezing rain by mid afternoon. waves building to 3 to
6 feet occasionally to 8 feet. 
.monday night...northeast winds 20 to 30 knots diminishing to
15 to 25 knots after midnight. a chance of snow showers, possibly
mixed with rain. a chance of freezing rain after midnight. waves
building to 4 to 7 feet occasionally to 9 feet. 
.tuesday...northeast winds 15 to 25 knots. a chance of snow
showers. waves building to 5 to 8 feet occasionally to 10 feet,
then subsiding to 3 to 6 feet occasionally to 8 feet. 
.tuesday night...north winds 15 to 25 knots diminishing to 10 to
20 knots after midnight. waves subsiding to 1 to 3 feet. 
.wednesday...east winds 10 to 20 knots. waves subsiding to calm
to 2 feet, then building to 3 to 5 feet occasionally to 7 feet. 
.thursday...east winds 20 to 30 knots. a chance of snow showers.
waves building to 5 to 9 feet occasionally to 11 feet. 

$$

fzus63 kmqt 291401
glfls 
expires:202603292000;;486985

open lake forecast for lake superior
national weather service marquette mi
1000 am edt sun mar 29 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 29.8 inch low over the central plains this morning lifts a 30.0 
inch trough over lake superior by this afternoon. this trough 
lingers over the great lakes and slowly deepens with time early this 
week before the low pushes through at 29.6 inches on tuesday. as the 
low tracks along the st. lawrence seaway tuesday night, 30.3 inch 
high pressure builds over the northern plains, gradually building 
pressure over northern ontario to 30.6 inches by wednesday. by 
thursday, the high builds to 30.8 inches over northern quebec while 
a weak 29.9 inch low passes over the southern great lakes basin and 
a 29.3 inch low pressure organizes in the lee of the rockies.



lsz267-292000-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
1000 am edt sun mar 29 2026

.rest of today...southeast winds 5 to 15 knots backing east in
the afternoon, then becoming southeast 10 to 20 knots late. waves
calm to 2 feet. 
.tonight...southeast winds 10 to 20 knots veering south after
midnight, then backing north late. waves calm to 2 feet. 
.monday...north winds 10 to 20 knots becoming northeast 5 to
15 knots in the afternoon, then increasing to 10 to 20 knots
late. waves calm to 2 feet. 
.monday night...east winds 10 to 20 knots increasing to 15 to
25 knots after midnight. rain showers likely through midnight. a
chance of snow showers. a chance of rain showers after midnight.
waves building to 3 to 5 feet occasionally to 7 feet. 
.tuesday...east winds 15 to 25 knots backing northeast by mid
afternoon. rain and snow showers likely through early afternoon,
then a chance of rain showers, possibly mixed with freezing rain
and snow showers by mid afternoon. waves 3 to 5 feet occasionally
to 7 feet. 
.tuesday night...north winds 20 to 30 knots. freezing spray after
midnight. waves 3 to 5 feet occasionally to 7 feet. 
.wednesday...north winds 15 to 25 knots veering east. waves
subsiding to calm to 2 feet, then building to 2 to 4 feet. 
.thursday...east winds 15 to 25 knots increasing to 20 to
30 knots. a chance of snow showers. waves building to 3 to 5 feet
occasionally to 7 feet, then subsiding to 2 to 4 feet. 

$$

fzus63 kmqt 291401
glfls 
expires:202603292000;;486984

open lake forecast for lake superior
national weather service marquette mi
1000 am edt sun mar 29 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 29.8 inch low over the central plains this morning lifts a 30.0 
inch trough over lake superior by this afternoon. this trough 
lingers over the great lakes and slowly deepens with time early this 
week before the low pushes through at 29.6 inches on tuesday. as the 
low tracks along the st. lawrence seaway tuesday night, 30.3 inch 
high pressure builds over the northern plains, gradually building 
pressure over northern ontario to 30.6 inches by wednesday. by 
thursday, the high builds to 30.8 inches over northern quebec while 
a weak 29.9 inch low passes over the southern great lakes basin and 
a 29.3 inch low pressure organizes in the lee of the rockies.



lsz266-292000-
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 sun mar 29 2026

.rest of today...east winds 5 to 15 knots becoming southeast
10 to 20 knots late. waves calm to 2 feet. 
.tonight...southeast winds 10 to 20 knots backing north after
midnight. waves calm to 2 feet. 
.monday...northeast winds 10 to 20 knots. waves building to 1 to
3 feet, then subsiding to calm to 2 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...east winds 20 to 30 knots backing northeast by mid
afternoon. rain showers likely through early afternoon. a chance
of snow showers. a chance of rain showers by mid 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...north winds 20 to 30 knots. freezing spray after
midnight. waves 3 to 6 feet occasionally to 8 feet. 
.wednesday...north winds 15 to 25 knots veering east. freezing
spray. waves subsiding to calm to 2 feet, then building to 3 to
6 feet occasionally to 8 feet. 
.thursday...east winds 20 to 30 knots. waves building to 7 to
10 feet occasionally to 13 feet. 

$$

fzus63 kmqt 291401
glfls 
expires:202603292000;;486981

open lake forecast for lake superior
national weather service marquette mi
1000 am edt sun mar 29 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 29.8 inch low over the central plains this morning lifts a 30.0 
inch trough over lake superior by this afternoon. this trough 
lingers over the great lakes and slowly deepens with time early this 
week before the low pushes through at 29.6 inches on tuesday. as the 
low tracks along the st. lawrence seaway tuesday night, 30.3 inch 
high pressure builds over the northern plains, gradually building 
pressure over northern ontario to 30.6 inches by wednesday. by 
thursday, the high builds to 30.8 inches over northern quebec while 
a weak 29.9 inch low passes over the southern great lakes basin and 
a 29.3 inch low pressure organizes in the lee of the rockies.



lsz263-292000-
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 sun mar 29 2026

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

$$