fzus61 kbuf 072010
glflo 
expires:202604080300;;994655

open lake forecast for lake ontario
national weather service buffalo ny
409 pm edt tue apr 7 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 29.9 inch clipper low will move off the new england 
coast this evening. a 30.6 inch high will then build over the lower 
great lakes tonight, then east across new england wednesday before 
moving southeast of nova scotia thursday. a 29.5 inch low will then 
move from the north shore of lake superior wednesday night to 
northern quebec by thursday night, with a trailing cold front 
crossing the lake thursday night and friday. a 30.5 inch high is 
then forecast to build into the central great lakes saturday, then 
drift east to new england by sunday.


loz063>065-080300-
lake ontario open waters from hamlin beach to the saint lawrence
river-
409 pm edt tue apr 7 2026

.tonight...west winds 15 to 20 knots becoming northwest and
diminishing to less than 10 knots. waves 4 to 7 feet subsiding to
2 feet or less. waves occasionally around 9 feet. 
.wednesday...southwest winds 10 knots or less becoming east 10 to
15 knots. waves 2 feet or less. 
.wednesday night...east winds 10 to 15 knots becoming south and
increasing to 30 knots overnight. waves 1 to 3 feet building to
4 to 7 feet. waves occasionally around 9 feet. 
.thursday...south winds to 30 knots diminishing to 15 to
25 knots. a chance of rain showers in the afternoon. waves 4 to
7 feet subsiding to 3 to 6 feet. waves occasionally around
9 feet. 
.thursday night...south winds 15 to 20 knots becoming west 5 to
15 knots. a chance of rain showers in the evening. waves 3 to
6 feet subsiding to 1 to 3 feet. 
.friday...north winds 5 to 15 knots becoming northwest. rain
showers likely. waves 1 to 3 feet. 
.saturday...northwest winds 5 to 15 knots becoming south less
than 10 knots. waves 2 feet or less. 
.sunday...southeast winds 5 to 10 knots becoming south and
increasing to 15 to 25 knots. a chance of rain showers sunday
night. waves 2 feet or less building to 3 to 6 feet. 

$$

fzus61 kbuf 072010
glflo 
expires:202604080300;;994654

open lake forecast for lake ontario
national weather service buffalo ny
409 pm edt tue apr 7 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 29.9 inch clipper low will move off the new england 
coast this evening. a 30.6 inch high will then build over the lower 
great lakes tonight, then east across new england wednesday before 
moving southeast of nova scotia thursday. a 29.5 inch low will then 
move from the north shore of lake superior wednesday night to 
northern quebec by thursday night, with a trailing cold front 
crossing the lake thursday night and friday. a 30.5 inch high is 
then forecast to build into the central great lakes saturday, then 
drift east to new england by sunday.


loz062-080300-
lake ontario open waters from the niagara river to hamlin beach-
409 pm edt tue apr 7 2026

.tonight...northwest winds 15 to 20 knots becoming northeast and
diminishing to less than 10 knots after midnight. waves 3 to
5 feet subsiding to 2 feet or less. 
.wednesday...southeast winds 10 knots or less becoming east 10 to
15 knots. waves 2 feet or less. 
.wednesday night...east winds 10 to 15 knots becoming south 15 to
20 knots. waves 2 to 4 feet building to 3 to 5 feet. 
.thursday...south winds 15 to 25 knots becoming southwest. a
chance of showers in the afternoon. waves 3 to 6 feet. 
.thursday night...southwest winds 15 to 20 knots becoming
northwest and diminishing to 5 to 10 knots. a chance of rain
showers. waves 3 to 6 feet subsiding to 1 to 2 feet. 
.friday...north winds 5 to 10 knots becoming northwest. rain
showers. waves 2 feet or less. 
.saturday...northwest winds 10 knots or less becoming southeast.
waves 1 foot or less. 
.sunday...southeast winds 5 to 10 knots becoming southwest and
increasing to 15 to 20 knots. a chance of rain showers. waves
2 feet or less building to 3 to 5 feet. 

$$

fzus61 kcle 071944
glfle 
expires:202604080300;;993528

open lake forecast for lake erie
national weather service cleveland oh
344 pm edt tue apr 7 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 30.60 inches will move over lake erie tonight then drift
eastward towards new england on wednesday. low pressure 29.70 
inches will track northeast across the upper great lakes late
wednesday, lifting a warm front northward across the lake. a cold
front will push across the lake on friday. high pressure 30.40 
inches will build over the great lakes on saturday. 


lez163>166-080300-
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-
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-
344 pm edt tue apr 7 2026

.tonight...northeast winds 5 to 15 knots becoming southeast.
waves 2 feet or less. 
.wednesday...southeast winds 5 to 15 knots becoming east. waves
2 feet or less. 
.wednesday night...southeast winds 10 to 15 knots becoming south
15 to 20 knots. waves 1 to 3 feet building to 3 to 5 feet. 
.thursday...south winds 15 to 25 knots becoming southwest and
diminishing to 10 to 15 knots. a chance of showers in the
afternoon. waves 3 to 6 feet subsiding to 2 to 4 feet. 
.thursday night...southwest winds 5 to 15 knots becoming south. a
chance of showers. waves 1 to 3 feet. 
.friday...south winds 5 to 10 knots becoming north. rain showers
likely during the day. waves 2 feet or less. 
.saturday...northeast winds 10 knots or less becoming east. waves
2 feet or less. 
.sunday...southeast winds 5 to 15 knots becoming south 15 to
20 knots. waves 1 to 3 feet building to 3 to 5 feet. 

$$

fzus61 kcle 071944
glfle 
expires:202604080300;;993527

open lake forecast for lake erie
national weather service cleveland oh
344 pm edt tue apr 7 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 30.60 inches will move over lake erie tonight then drift
eastward towards new england on wednesday. low pressure 29.70 
inches will track northeast across the upper great lakes late
wednesday, lifting a warm front northward across the lake. a cold
front will push across the lake on friday. high pressure 30.40 
inches will build over the great lakes on saturday. 


lez162-080300-
detroit river lt. to maumee bay oh to reno beach oh beyond 5nm
offshoreline to us-canadian border-
344 pm edt tue apr 7 2026

.tonight...southeast winds around 10 knots. waves 2 feet or less.
.wednesday...southeast winds around 10 knots. waves 1 to 2 feet. 
.wednesday night...southeast winds 10 to 15 knots becoming south
15 to 20 knots. waves 1 to 3 feet. 
.thursday...south winds 15 to 20 knots becoming southwest 10 to
15 knots. a chance of showers. waves 2 to 3 feet. 
.thursday night...southwest winds 5 to 10 knots becoming
southeast. a chance of showers. waves 1 to 2 feet. 
.friday...south winds 5 to 10 knots becoming northeast. showers
likely during the day. waves 1 foot or less. 
.saturday...northeast winds 5 to 10 knots becoming east. waves
1 to 2 feet. 
.sunday...southeast winds 10 to 15 knots becoming south 15 to
20 knots. waves 1 to 3 feet. 

$$

fzus61 kcle 071944
glfle 
expires:202604080300;;993529

open lake forecast for lake erie
national weather service cleveland oh
344 pm edt tue apr 7 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 30.60 inches will move over lake erie tonight then drift
eastward towards new england on wednesday. low pressure 29.70 
inches will track northeast across the upper great lakes late
wednesday, lifting a warm front northward across the lake. a cold
front will push across the lake on friday. high pressure 30.40 
inches will build over the great lakes on saturday. 


lez061-167>169-080300-
ripley to buffalo ny extending from 5nm off shoreline to us-
canadian border-willowick to geneva-on-the-
lake oh beyond 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-
344 pm edt tue apr 7 2026

.tonight...northwest winds 10 knots or less becoming southeast.
waves 2 feet or less. 
.wednesday...southeast winds 5 to 10 knots becoming east. waves
1 foot or less. 
.wednesday night...east winds 10 to 15 knots becoming south 15 to
20 knots. waves 2 feet or less building to 3 to 5 feet. 
.thursday...south winds 15 to 20 knots becoming southwest 10 to
15 knots. a chance of showers in the afternoon. waves 3 to 5 feet
subsiding to 2 to 4 feet. 
.thursday night...southwest winds 5 to 15 knots becoming south. a
chance of rain showers. waves 1 to 3 feet. 
.friday...south winds 10 knots or less becoming north. rain
showers likely during the day. waves 2 feet or less. 
.saturday...north winds 10 knots or less becoming east. waves
1 foot or less. 
.sunday...southeast winds 5 to 15 knots becoming south 15 to
20 knots. waves 1 foot or less building to 3 to 5 feet. 

$$

fzus63 kdtx 071958
glfsc 
expires:202604080400;;993899

lake st clair forecast
national weather service detroit/pontiac mi
358 pm edt tue apr 7 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, 30.60 inches, maintains calm conditions
today and most of wednesday. unsettled weather returns wednesday
night with gusty winds and rain expected ahead of low pressure,
29.40 inches.


lcz460-080400-
lake st clair-
358 pm edt tue apr 7 2026

.tonight...east winds 5 to 10 knots veering to the southeast after
midnight. clear. waves 2 feet or less.
.wednesday...southeast winds 10 to 15 knots. partly sunny. waves 2
feet or less.
.wednesday night...southeast winds 10 to 15 knots becoming south 15
to 20 knots in the late evening and overnight. mostly clear. waves 1
to 3 feet.
.thursday...southwest winds 15 to 20 knots. partly sunny. a chance
of light rain until late afternoon. waves 1 to 3 feet.
.thursday night...west winds 10 to 15 knots becoming northwest 5 to
10 knots by midnight...then veering to the northeast after midnight.
partly cloudy ...then mostly cloudy with rain likely after midnight.
waves 2 feet or less.
.friday...northeast winds 5 to 10 knots. rain. waves 2 feet or less.
.saturday...southeast winds 5 to 10 knots. mostly clear. waves 2
feet or less.
.sunday...south winds 15 to 20 knots. partly cloudy. waves 2 feet or
less.

$$

fzus63 kdtx 071957
glflh 
expires:202604080400;;993894

open lake forecast for lake huron
national weather service detroit/pontiac mi
357 pm edt tue apr 7 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, 30.60 inches, maintains calm conditions
today and most of wednesday. unsettled weather returns wednesday
night with gusty winds and rain expected ahead of low pressure,
29.40 inches.


lhz462>464-080400-
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-
357 pm edt tue apr 7 2026

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


$$

fzus63 kdtx 071957
glflh 
expires:202604080400;;993892

open lake forecast for lake huron
national weather service detroit/pontiac mi
357 pm edt tue apr 7 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, 30.60 inches, maintains calm conditions
today and most of wednesday. unsettled weather returns wednesday
night with gusty winds and rain expected ahead of low pressure,
29.40 inches.


lhz361-080400-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
357 pm edt tue apr 7 2026

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


$$

fzus63 kdtx 071957
glflh 
expires:202604080400;;993893

open lake forecast for lake huron
national weather service detroit/pontiac mi
357 pm edt tue apr 7 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, 30.60 inches, maintains calm conditions
today and most of wednesday. unsettled weather returns wednesday
night with gusty winds and rain expected ahead of low pressure,
29.40 inches.


lhz362-363-080400-
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-
357 pm edt tue apr 7 2026

.tonight...southeast winds 5 to 10 knots becoming south 15 to
20 knots. waves 1 to 3 feet building to 3 to 5 feet early in the
morning. 
.wednesday...south winds 15 to 20 knots increasing to 20 to
25 knots with gusts to around 30 knots in the afternoon. waves
5 to 7 feet building to 8 to 12 feet in the afternoon. waves
occasionally around 15 feet. 
.wednesday night...south winds 20 to 25 knots with gusts to
around 30 knots. rain likely after midnight. waves 10 to 14 feet.
waves occasionally around 18 feet. 
.thursday...southwest winds 15 to 20 knots decreasing to 10 to
15 knots early in the afternoon. waves 6 to 9 feet. waves
occasionally around 12 feet. 
.thursday night...west winds 10 to 15 knots. a chance of rain and
snow after midnight. waves 3 to 5 feet subsiding to 1 to 3 feet
after midnight. 
.friday...northeast winds 5 to 10 knots backing to the northwest
late in the evening. a chance of snow and rain in the morning...
then a chance of rain late in the morning. waves 2 feet or less. 
.saturday...northwest winds 5 to 10 knots backing to the
southeast early in the evening...then increasing to 10 to
15 knots by midnight. waves 1 to 3 feet. 
.sunday...south winds 15 to 20 knots increasing to 20 to 25 knots
with gusts to around 30 knots by midnight. a chance of rain.
waves 5 to 7 feet. waves occasionally around 10 feet. 


$$

fzus63 kdtx 071354
glflh 
expires:202604072200;;979397

open lake forecast for lake huron
national weather service detroit/pontiac mi
954 am edt tue apr 7 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, 30.60 inches, maintains calmer
conditions tuesday. unsettled weather returns mid-week with gusty
winds and rain expected.


lhz362-363-462-072200-
lake huron from presque isle light to sturgeon point mi beyond
5nm off shore-
lake huron from sturgeon point to alabaster mi beyond 5nm off
shore-
lake huron from port austin to harbor beach beyond 5nm off shore-
954 am edt tue apr 7 2026

.rest of today...north winds 10 to 15 knots backing to the west
early in the afternoon...then becoming northwest 5 to 10 knots
late in the afternoon. waves 6 to 9 feet subsiding to 3 to 5 feet
late in the afternoon. waves occasionally around 12 feet. 
.tonight...southeast winds 5 to 10 knots becoming south 15 to
20 knots. waves 1 to 3 feet building to 3 to 5 feet early in the
morning. 
.wednesday...south winds 15 to 20 knots increasing to 20 to
25 knots with gusts to around 30 knots in the late morning and
afternoon. waves 5 to 7 feet building to 8 to 12 feet early in
the afternoon. waves occasionally around 15 feet. 
.wednesday night...south winds 20 to 25 knots increasing to
30 knots by midnight...then decreasing to 20 to 25 knots after
midnight. gusts to 35 knot gales. a chance of rain after
midnight. waves 10 to 14 feet. waves occasionally around 18 feet.
.thursday...south winds 15 to 20 knots with gusts to around
30 knots becoming southwest 10 to 15 knots late in the afternoon.
a chance of rain in the morning. a chance of rain late in the
evening. waves 8 to 12 feet subsiding to 3 to 5 feet late in the
afternoon. waves occasionally around 15 feet. 
.friday...north winds 5 to 10 knots backing to the northwest by
midnight. a chance of rain early in the morning. waves 2 feet or
less. 
.saturday...northwest winds 5 to 10 knots veering to the east
early in the evening...then becoming southeast 10 to 15 knots by
midnight. waves 1 to 3 feet. 


$$

fzus63 kdtx 071354
glflh 
expires:202604072200;;979398

open lake forecast for lake huron
national weather service detroit/pontiac mi
954 am edt tue apr 7 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, 30.60 inches, maintains calmer
conditions tuesday. unsettled weather returns mid-week with gusty
winds and rain expected.


lhz463-464-072200-
lake huron from harbor beach to port sanilac beyond 5nm off shore-
lake huron from port sanilac to port huron beyond 5nm off shore-
954 am edt tue apr 7 2026

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


$$

fzus63 kmkx 071938
glflm 
expires:202604080315;;993328

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
238 pm cdt tue apr 7 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...

high pressure around 30.6 inches has moved across central lake 
michigan lowering winds generally across the lake. low pressure
around 29.5 inches will then track along the northern 
plains/canadian border tonight and wednesday, then track north 
of lake superior wednesday night into thursday morning. this 
will result in breezy southerly winds over lake michigan on 
wednesday with gale force gusts up to 40 kt. a gale warning is 
in effect for the northern three quarters of the lake.

much weaker north winds will then take hold by thursday 
afternoon into friday as high pressure around 30.4 inches slowly
moves through the region. breezy southerly winds return toward
early next week as a stronger system pushes in from the west.


lmz080-675-777-779-876-878-080315-
lake michigan from michigan city in to st. joseph mi 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 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-
238 pm cdt tue apr 7 2026

wind point wi to holland mi south...

.tonight...northeast winds 5 to 10 kt becoming east late this
evening, then becoming southeast 10 to 20 kt after midnight
increasing to 15 to 25 kt late. waves 1 to 3 ft building to 3 to
5 ft. 
.wednesday...south winds to 30 kt. slight chance of rain showers
in the morning. waves 4 to 7 ft occasionally to 9 ft building to
5 to 8 ft occasionally to 10 ft. 
.wednesday night...south winds to 30 kt becoming southwest. rain
showers likely overnight. waves 5 to 8 ft occasionally to 10 ft. 
.thursday...southwest winds 10 to 20 kt becoming west 10 to
15 kt. waves 4 to 6 ft occasionally to 8 ft subsiding to 2 to
4 ft. 
.thursday night...east winds 5 to 10 kt becoming northeast.
chance of rain showers in the evening, then rain showers
overnight. waves 1 to 2 ft. 
.friday...north winds 5 to 10 kt increasing to 10 to 15 kt. rain
showers in the morning, then chance of rain showers in the
afternoon. waves 1 to 2 ft. 
.friday night...northeast winds 10 to 15 kt diminishing to 5 to
10 kt. waves 1 to 2 ft. 
.saturday...east winds 5 to 10 kt. waves 1 ft or less. 
.sunday...south winds 15 to 25 kt diminishing to 10 to 20 kt.
chance of showers. waves 4 to 6 ft occasionally to 8 ft.  

$$

fzus63 kmkx 071938
glflm 
expires:202604080315;;993327

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
238 pm cdt tue apr 7 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...

high pressure around 30.6 inches has moved across central lake 
michigan lowering winds generally across the lake. low pressure
around 29.5 inches will then track along the northern 
plains/canadian border tonight and wednesday, then track north 
of lake superior wednesday night into thursday morning. this 
will result in breezy southerly winds over lake michigan on 
wednesday with gale force gusts up to 40 kt. a gale warning is 
in effect for the northern three quarters of the lake.

much weaker north winds will then take hold by thursday 
afternoon into friday as high pressure around 30.4 inches slowly
moves through the region. breezy southerly winds return toward
early next week as a stronger system pushes in from the west.


lmz669-671-673-870-872-874-080315-
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 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-
238 pm cdt tue apr 7 2026

sheboygan wi to pentwater mi south to wind point wi to holland
mi...

...gale warning in effect from wednesday morning through late
wednesday night...

.tonight...southeast winds 10 to 15 kt becoming south to 30 kt.
waves 1 to 2 ft building to 3 to 5 ft. 
.wednesday...south winds to 30 kt increasing to gales to 40 kt.
chance of rain showers in the morning. waves 5 to 8 ft
occasionally to 10 ft building to 8 to 12 ft occasionally to
16 ft. 
.wednesday night...south gales to 40 kt becoming southwest gales
to 35 kt after midnight, then diminishing to 30 kt late. chance
of rain showers in the evening, then rain showers overnight.
waves 8 to 12 ft occasionally to 16 ft subsiding to 6 to 9 ft
occasionally to 12 ft. 
.thursday...west winds 10 to 20 kt becoming southwest. waves 4 to
7 ft occasionally to 9 ft subsiding to 3 to 5 ft. 
.thursday night...east winds 5 to 10 kt becoming northeast.
chance of rain showers. waves 1 to 3 ft subsiding to 1 to 2 ft. 
.friday...north winds 5 to 10 kt increasing to 10 to 15 kt.
chance of rain showers. waves 1 to 2 ft. 
.friday night...northeast winds 10 to 15 kt diminishing to 5 to
10 kt. waves 1 to 2 ft. 
.saturday...east winds 5 to 10 kt becoming southeast. waves 1 to
2 ft. 
.sunday...south winds to 30 kt. chance of rain showers. waves
6 to 9 ft occasionally to 12 ft.  

$$

fzus63 kmkx 071938
glflm 
expires:202604080315;;993326

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
238 pm cdt tue apr 7 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...

high pressure around 30.6 inches has moved across central lake 
michigan lowering winds generally across the lake. low pressure
around 29.5 inches will then track along the northern 
plains/canadian border tonight and wednesday, then track north 
of lake superior wednesday night into thursday morning. this 
will result in breezy southerly winds over lake michigan on 
wednesday with gale force gusts up to 40 kt. a gale warning is 
in effect for the northern three quarters of the lake.

much weaker north winds will then take hold by thursday 
afternoon into friday as high pressure around 30.4 inches slowly
moves through the region. breezy southerly winds return toward
early next week as a stronger system pushes in from the west.


lmz261-362-364-366-563-565-567-868-080315-
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-
238 pm cdt tue apr 7 2026

sheboygan wi to pentwater mi north...

...gale warning in effect from wednesday morning through late
wednesday night...

.tonight...south winds 10 to 15 kt increasing to 30 kt. waves
1 to 3 ft building to 4 to 6 ft occasionally to 8 ft.
.wednesday...south gales to 35 kt increasing to gales to 40 kt.
chance of rain and snow showers in the morning. waves 6 to 9 ft
occasionally to 12 ft building to 10 to 14 ft occasionally to
18 ft. 
.wednesday night...south gales to 40 kt increasing to gales to
45 kt late in the evening, then becoming southwest gales to 35 kt
after midnight diminishing to 30 kt late. rain showers in the
evening, then chance of rain showers overnight. waves 12 to 16 ft
occasionally to 21 ft subsiding to 6 to 9 ft occasionally to
12 ft. 
.thursday...southwest winds to 30 kt becoming west. waves 4 to
7 ft occasionally to 9 ft subsiding to 3 to 5 ft. 
.thursday night...northwest winds 10 to 15 kt veering to
northeast. chance of rain showers overnight. waves 1 to 3 ft
subsiding to 1 to 2 ft. 
.friday...north winds 5 to 10 kt increasing to 10 to 15 kt. waves
1 to 2 ft. 
.friday night...northeast winds 5 to 10 kt veering to southeast.
waves 1 ft or less. 
.saturday...south winds 5 to 10 kt increasing to 10 to 15 kt.
waves 1 to 2 ft. 
.sunday...south winds to 30 kt. rain showers likely. waves 6 to
9 ft occasionally to 12 ft building to 7 to 10 ft occasionally to
13 ft.  

$$

fzus63 kmqt 072001
glfls 
expires:202604080800;;994008

open lake forecast for lake superior
national weather service marquette mi
400 pm edt tue apr 7 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 strong 30.6 inch high pressure continues through the lower great 
lakes the rest of this afternoon, reaching new england by wednesday 
afternoon. meanwhile, a 29.5 inch low continues to organize along 
the montana/saskatchewan border, moving just north of the dakotas 
tonight before moving north of lake superior wednesday night. high 
pressure builds into the upper great lakes thursday and friday, 
eventually building to 30.5 inches over the lower great lakes by 
saturday. on sunday, a 29.3 inch low pressure develops in the lee of 
the northern rockies while the 30.5 inch high pushes off of the 
eastern seaboard into the atlantic.



lsz264-080800-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
400 pm edt tue apr 7 2026

.late this afternoon...southwest winds 10 to 20 knots. waves 1 to
3 feet building to 2 to 4 feet. 
.tonight...south winds 5 to 15 knots increasing to 15 to
25 knots. a slight chance of snow showers after midnight. waves
subsiding to 1 to 3 feet, then building to 3 to 6 feet
occasionally to 8 feet. 
.wednesday...south winds 20 to 30 knots backing southeast in the
afternoon, then becoming south to 30 knots with a few gale force
gusts to 35 knots possible late. snow showers likely, possibly
mixed with rain showers and freezing rain through early
afternoon, then rain showers, possibly mixed with snow by mid
afternoon. waves building to 8 to 11 feet occasionally to
14 feet. 
.wednesday night...southwest winds 20 to 30 knots veering west
late. a chance of rain showers through midnight. waves subsiding
to 3 to 6 feet occasionally to 8 feet, then building to 6 to
9 feet occasionally to 11 feet. 
.thursday...west winds 20 to 30 knots diminishing to 15 to
25 knots by mid afternoon. waves subsiding to 3 to 6 feet
occasionally to 8 feet. 
.thursday night...west winds 5 to 15 knots diminishing to less
than 10 knots after midnight. waves subsiding to calm to 2 feet. 
.friday...west winds 5 to 15 knots. waves calm to 2 feet. 
.friday night...southwest winds 5 to 15 knots veering west after
midnight. waves calm to 2 feet. 
.saturday...southwest winds 5 to 15 knots becoming south 20 to
30 knots. waves building to 5 to 8 feet occasionally to 10 feet. 
.sunday...south winds 20 to 30 knots. rain showers. waves
subsiding to 3 to 5 feet occasionally to 7 feet, then building to
7 to 10 feet occasionally to 13 feet. 

$$

fzus63 kmqt 072001
glfls 
expires:202604080800;;994009

open lake forecast for lake superior
national weather service marquette mi
400 pm edt tue apr 7 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 strong 30.6 inch high pressure continues through the lower great 
lakes the rest of this afternoon, reaching new england by wednesday 
afternoon. meanwhile, a 29.5 inch low continues to organize along 
the montana/saskatchewan border, moving just north of the dakotas 
tonight before moving north of lake superior wednesday night. high 
pressure builds into the upper great lakes thursday and friday, 
eventually building to 30.5 inches over the lower great lakes by 
saturday. on sunday, a 29.3 inch low pressure develops in the lee of 
the northern rockies while the 30.5 inch high pushes off of the 
eastern seaboard into the atlantic.



lsz265-080800-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
400 pm edt tue apr 7 2026

.late this afternoon...southwest winds 5 to 15 knots. waves calm
to 2 feet. 
.tonight...south winds 10 to 20 knots increasing to 15 to
25 knots after midnight. a slight chance of snow showers after
midnight. waves building to 3 to 6 feet occasionally to 8 feet. 
.wednesday...south winds to 30 knots with a few gale force gusts
to 35 knots possible diminishing to 20 to 30 knots late. snow
showers, possibly mixed with freezing rain through early
afternoon. a chance of rain showers. waves building to 5 to
8 feet occasionally to 10 feet. 
.wednesday night...south winds 15 to 25 knots veering southwest
after midnight, then becoming west 20 to 30 knots late. a chance
of rain showers through midnight. waves subsiding to 1 to 3 feet,
then building to 3 to 5 feet occasionally to 7 feet. 
.thursday...west winds 20 to 30 knots diminishing to 15 to
25 knots by mid afternoon. waves building to 3 to 6 feet
occasionally to 8 feet, then subsiding to 2 to 4 feet. 
.thursday night...west winds 10 to 20 knots diminishing to 5 to
15 knots after midnight. waves subsiding to calm to 2 feet. 
.friday...west winds 10 to 20 knots diminishing to 5 to 15 knots
by mid afternoon. waves calm to 2 feet. 
.friday night...southwest winds 5 to 15 knots increasing to 10 to
20 knots after midnight. waves calm to 2 feet. 
.saturday...southeast winds 10 to 20 knots becoming south 20 to
30 knots. rain showers likely. waves building to 4 to 7 feet
occasionally to 9 feet. 
.sunday...south winds 20 to 30 knots. rain showers. waves
subsiding to 2 to 4 feet, then building to 5 to 8 feet
occasionally to 10 feet. 

$$

fzus63 kmqt 072001
glfls 
expires:202604080800;;994010

open lake forecast for lake superior
national weather service marquette mi
400 pm edt tue apr 7 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 strong 30.6 inch high pressure continues through the lower great 
lakes the rest of this afternoon, reaching new england by wednesday 
afternoon. meanwhile, a 29.5 inch low continues to organize along 
the montana/saskatchewan border, moving just north of the dakotas 
tonight before moving north of lake superior wednesday night. high 
pressure builds into the upper great lakes thursday and friday, 
eventually building to 30.5 inches over the lower great lakes by 
saturday. on sunday, a 29.3 inch low pressure develops in the lee of 
the northern rockies while the 30.5 inch high pushes off of the 
eastern seaboard into the atlantic.



lsz266-080800-
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-
400 pm edt tue apr 7 2026

...gale warning in effect from wednesday morning through
wednesday evening...

.late this afternoon...west winds 5 to 15 knots. waves 1 to
3 feet. 
.tonight...south winds 10 to 20 knots increasing to 20 to
30 knots after midnight. waves building to 4 to 7 feet
occasionally to 9 feet. 
.wednesday...south gales to 40 knots. a chance of rain and snow
showers. waves building to 8 to 11 feet occasionally to 14 feet. 
.wednesday night...south gales to 35 knots becoming southwest
15 to 25 knots after midnight, then increasing to 20 to 30 knots
late. rain showers through midnight. waves subsiding to 3 to
6 feet occasionally to 8 feet, then building to 5 to 8 feet
occasionally to 10 feet. 
.thursday...west winds 20 to 30 knots diminishing to 15 to
25 knots by mid afternoon. waves subsiding to 4 to 7 feet
occasionally to 9 feet. 
.thursday night...west winds 5 to 15 knots. waves subsiding to
calm to 2 feet. 
.friday...west winds 5 to 15 knots. waves calm to 2 feet. 
.friday night...west winds 5 to 15 knots becoming southwest 10 to
20 knots after midnight. waves calm to 2 feet. 
.saturday...south winds 5 to 15 knots increasing to 20 to
30 knots. waves building to 5 to 8 feet occasionally to 10 feet. 
.sunday...south gales to 35 knots. rain showers. waves subsiding
to 3 to 5 feet occasionally to 7 feet, then building to 6 to
9 feet occasionally to 11 feet. 

$$

fzus63 kmqt 072001
glfls 
expires:202604080800;;994011

open lake forecast for lake superior
national weather service marquette mi
400 pm edt tue apr 7 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 strong 30.6 inch high pressure continues through the lower great 
lakes the rest of this afternoon, reaching new england by wednesday 
afternoon. meanwhile, a 29.5 inch low continues to organize along 
the montana/saskatchewan border, moving just north of the dakotas 
tonight before moving north of lake superior wednesday night. high 
pressure builds into the upper great lakes thursday and friday, 
eventually building to 30.5 inches over the lower great lakes by 
saturday. on sunday, a 29.3 inch low pressure develops in the lee of 
the northern rockies while the 30.5 inch high pushes off of the 
eastern seaboard into the atlantic.



lsz267-080800-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
400 pm edt tue apr 7 2026

.late this afternoon...west winds 10 to 20 knots. waves 2 to
4 feet subsiding to 1 to 3 feet. 
.tonight...south winds 10 to 20 knots increasing to 15 to
25 knots after midnight. waves subsiding to calm to 2 feet, then
building to 3 to 5 feet occasionally to 7 feet. 
.wednesday...south winds 20 to 30 knots increasing to 30 knots
with a few gale force gusts to 35 knots possible in the
afternoon, then diminishing to 20 to 30 knots late. snow showers
likely through early afternoon, then a chance of rain showers,
possibly mixed with snow by mid afternoon. waves building to 5 to
8 feet occasionally to 10 feet. 
.wednesday night...south winds to 30 knots with a few gale force
gusts to 35 knots possible becoming southwest 20 to 30 knots
after midnight. rain showers through midnight, then a slight
chance of rain showers, possibly mixed with snow after midnight.
waves subsiding to 3 to 5 feet occasionally to 7 feet. 
.thursday...west winds 20 to 30 knots diminishing to 15 to
25 knots by mid afternoon. waves building to 4 to 8 feet
occasionally to 10 feet. 
.thursday night...west winds 5 to 15 knots. waves subsiding to
calm to 2 feet. 
.friday...west winds 5 to 15 knots veering northwest by mid
afternoon. waves calm to 2 feet. 
.friday night...west winds 5 to 15 knots backing southwest after
midnight. waves calm to 2 feet. 
.saturday...southeast winds 5 to 15 knots increasing to 15 to
25 knots. a chance of rain showers, possibly mixed with snow.
waves building to 3 to 6 feet occasionally to 8 feet. 
.sunday...south winds 20 to 30 knots. rain showers. waves
building to 4 to 7 feet occasionally to 9 feet, then subsiding to
2 to 4 feet. 

$$

fzus63 kmqt 072001
glfls 
expires:202604080800;;994006

open lake forecast for lake superior
national weather service marquette mi
400 pm edt tue apr 7 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 strong 30.6 inch high pressure continues through the lower great 
lakes the rest of this afternoon, reaching new england by wednesday 
afternoon. meanwhile, a 29.5 inch low continues to organize along 
the montana/saskatchewan border, moving just north of the dakotas 
tonight before moving north of lake superior wednesday night. high 
pressure builds into the upper great lakes thursday and friday, 
eventually building to 30.5 inches over the lower great lakes by 
saturday. on sunday, a 29.3 inch low pressure develops in the lee of 
the northern rockies while the 30.5 inch high pushes off of the 
eastern seaboard into the atlantic.



lsz162-080800-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
400 pm edt tue apr 7 2026 /300 pm cdt tue apr 7 2026/

.late this afternoon...southwest winds 5 to 15 knots. waves 1 to
3 feet subsiding to calm to 2 feet. 
.tonight...southeast winds 10 to 20 knots becoming south 15 to
25 knots after midnight. a chance of snow showers, possibly mixed
with rain after midnight. waves building to 3 to 5 feet
occasionally to 7 feet. 
.wednesday...southeast winds 15 to 25 knots diminishing to 10 to
20 knots in the afternoon, then veering southwest late. a chance
of rain showers, possibly mixed with snow through early
afternoon, then rain showers by mid afternoon. waves subsiding to
1 to 3 feet. 
.wednesday night...southwest winds 10 to 20 knots becoming west
15 to 25 knots after midnight, then increasing to 20 to 30 knots
late. a slight chance of rain showers through midnight. waves
subsiding to calm to 2 feet, then building to 4 to 7 feet
occasionally to 9 feet. 
.thursday...west winds 15 to 25 knots diminishing to 10 to
20 knots by mid afternoon. waves subsiding to 1 to 3 feet. 
.thursday night...west winds 5 to 15 knots veering northwest
after midnight. waves subsiding to calm to 2 feet. 
.friday...west winds 5 to 15 knots backing southwest by mid
afternoon. waves calm to 2 feet. 
.friday night...southwest winds 5 to 15 knots veering west after
midnight. waves calm to 2 feet. 
.saturday...east winds 5 to 15 knots becoming southeast 10 to
20 knots. rain showers. waves building to 2 to 4 feet. 
.sunday...east winds 10 to 20 knots becoming south 15 to
25 knots. rain showers. waves subsiding to 1 to 3 feet, then
building to 7 to 10 feet occasionally to 13 feet. 

$$

fzus63 kmqt 072001
glfls 
expires:202604080800;;994007

open lake forecast for lake superior
national weather service marquette mi
400 pm edt tue apr 7 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 strong 30.6 inch high pressure continues through the lower great 
lakes the rest of this afternoon, reaching new england by wednesday 
afternoon. meanwhile, a 29.5 inch low continues to organize along 
the montana/saskatchewan border, moving just north of the dakotas 
tonight before moving north of lake superior wednesday night. high 
pressure builds into the upper great lakes thursday and friday, 
eventually building to 30.5 inches over the lower great lakes by 
saturday. on sunday, a 29.3 inch low pressure develops in the lee of 
the northern rockies while the 30.5 inch high pushes off of the 
eastern seaboard into the atlantic.



lsz263-080800-
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-
400 pm edt tue apr 7 2026

.late this afternoon...southwest winds 10 to 20 knots. waves 2 to
4 feet subsiding to 1 to 3 feet. 
.tonight...southeast winds 5 to 15 knots becoming south 10 to
20 knots after midnight, then increasing to 15 to 25 knots late.
a chance of snow showers after midnight. waves subsiding to calm
to 2 feet, then building to 3 to 5 feet occasionally to 7 feet. 
.wednesday...south winds 15 to 25 knots backing southeast in the
afternoon, then becoming south 10 to 20 knots late. snow showers
likely, possibly mixed with rain showers through early afternoon,
then rain showers by mid afternoon. waves 3 to 5 feet
occasionally to 7 feet. 
.wednesday night...southwest winds 10 to 20 knots increasing to
20 to 30 knots after midnight, then veering west late. a slight
chance of rain showers with pockets of snow showers through
midnight. waves subsiding to 2 to 4 feet, then building to 6 to
9 feet occasionally to 11 feet. 
.thursday...west winds 20 to 30 knots diminishing to 15 to
25 knots by mid afternoon. waves subsiding to 3 to 5 feet
occasionally to 7 feet. 
.thursday night...west winds 5 to 15 knots diminishing to less
than 10 knots after midnight. waves subsiding to calm to 2 feet. 
.friday...west winds 5 to 15 knots backing southwest by mid
afternoon. waves calm to 2 feet. 
.friday night...southwest winds 5 to 15 knots. waves calm to
2 feet. 
.saturday...south winds 5 to 15 knots becoming southeast 15 to
25 knots. a chance of rain showers. waves building to 3 to 5 feet
occasionally to 7 feet. 
.sunday...south winds 15 to 25 knots increasing to 20 to
30 knots. rain showers. waves subsiding to 2 to 4 feet, then
building to 7 to 10 feet occasionally to 13 feet. 

$$