fzus61 kbuf 081410
glflo 
expires:202604082100;;032570

open lake forecast for lake ontario
national weather service buffalo ny
1010 am edt wed apr 8 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 30.6 inch high over the lower great lakes will move 
east across new england today, before moving southeast of nova 
scotia thursday. a 29.5 inch low will move from the north shore of 
lake superior tonight 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>065-082100-
lake ontario open waters from hamlin beach to the saint lawrence
river-
1010 am edt wed apr 8 2026

.this afternoon...south winds 5 to 15 knots becoming east 15 to
20 knots. waves 1 to 3 feet. 
.tonight...east winds 15 to 25 knots becoming south. waves 1 to
3 feet building to 3 to 5 feet. 
.thursday...south winds 15 to 25 knots. a chance of rain showers
in the afternoon. waves 3 to 6 feet. 
.thursday night...south winds 15 to 20 knots becoming west and
diminishing to 5 to 10 knots. a chance of rain showers in the
evening. waves 3 to 5 feet subsiding to 1 to 3 feet. 
.friday...northwest winds 5 to 10 knots. rain showers likely.
waves 2 feet or less. 
.saturday...northwest winds 10 knots or less becoming south.
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 1 foot or less building to 3 to 6 feet. 

$$

fzus61 kbuf 081410
glflo 
expires:202604082100;;032569

open lake forecast for lake ontario
national weather service buffalo ny
1010 am edt wed apr 8 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 30.6 inch high over the lower great lakes will move 
east across new england today, before moving southeast of nova 
scotia thursday. a 29.5 inch low will move from the north shore of 
lake superior tonight 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.


loz062-082100-
lake ontario open waters from the niagara river to hamlin beach-
1010 am edt wed apr 8 2026

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

$$

fzus61 kcle 081336
glfle 
expires:202604082015;;031286

open lake forecast for lake erie
national weather service cleveland oh
936 am edt wed apr 8 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...
pressure averaging 30.40 inches will gradually fall as high
pressure moves east away from lake erie and a frontal boundary
moves in and becomes stationary in the vicinity of the lake late
thursday. it will push across as a cold front on friday. high 
pressure 30.50 inches will build over the great lakes on saturday.


lez162-163-082015-
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-
936 am edt wed apr 8 2026

.this afternoon...southeast winds 10 to 15 knots. waves 2 feet or
less. 
.tonight...southeast winds 10 to 15 knots becoming south 15 to
20 knots. waves 1 to 3 feet building to 2 to 4 feet. 
.thursday...south winds 15 to 20 knots becoming southwest 10 to
15 knots. a chance of showers. waves 2 to 4 feet subsiding to
1 to 3 feet. 
.thursday night...west winds 5 to 10 knots becoming southeast. a
chance of showers. waves 2 feet or less. 
.friday...south winds 5 to 10 knots becoming northeast. showers
during the day. waves 1 foot or less. 
.saturday...northeast winds 5 to 10 knots becoming southeast.
waves 2 feet or less. 
.sunday...southeast winds 10 to 15 knots becoming southwest 15 to
20 knots. waves 1 to 3 feet. 

$$

fzus61 kcle 081336
glfle 
expires:202604082015;;031288

open lake forecast for lake erie
national weather service cleveland oh
936 am edt wed apr 8 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...
pressure averaging 30.40 inches will gradually fall as high
pressure moves east away from lake erie and a frontal boundary
moves in and becomes stationary in the vicinity of the lake late
thursday. it will push across as a cold front on friday. high 
pressure 30.50 inches will build over the great lakes on saturday.


lez061-167>169-082015-
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-
936 am edt wed apr 8 2026

.this afternoon...southeast winds 5 to 10 knots becoming east.
waves 1 foot or less. 
.tonight...southeast winds 5 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 6 feet
subsiding to 2 to 4 feet. 
.thursday night...southwest winds 5 to 15 knots becoming south
less than 10 knots. a chance of rain showers. waves 1 to 3 feet. 
.friday...south winds 10 knots or less becoming north. rain
showers during the day. waves 1 foot 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 2 feet or less building to 3 to 5 feet. 

$$

fzus61 kcle 081336
glfle 
expires:202604082015;;031287

open lake forecast for lake erie
national weather service cleveland oh
936 am edt wed apr 8 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...
pressure averaging 30.40 inches will gradually fall as high
pressure moves east away from lake erie and a frontal boundary
moves in and becomes stationary in the vicinity of the lake late
thursday. it will push across as a cold front on friday. high 
pressure 30.50 inches will build over the great lakes on saturday.


lez164>166-082015-
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-
936 am edt wed apr 8 2026

.this afternoon...southeast winds 5 to 10 knots becoming east.
waves 2 feet or less. 
.tonight...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 20 knots becoming southwest 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 subsiding to 1 foot or less.
.friday...south winds 5 to 10 knots becoming north. rain showers
during the day. waves 1 foot or less. 
.saturday...northeast winds 5 to 10 knots becoming east. waves
1 foot or less. 
.sunday...southeast winds around 10 knots becoming south and
increasing to 15 to 20 knots. waves 2 feet or less building to
3 to 5 feet. 

$$

fzus63 kdtx 081335
glflh 
expires:202604082145;;031256

open lake forecast for lake huron
national weather service detroit/pontiac mi
935 am edt wed apr 8 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...increasing southerly winds today as low pressure,
29.70 inches, tracks through lake superior this evening. brief
gusts to gales possible over northern lake huron. showers spread
in tonight into thursday as the associated cold front swings
south.


lhz462>464-082145-
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-
935 am edt wed apr 8 2026

.rest of today...southeast winds 15 to 20 knots. gusts to
30 knots in the afternoon. waves 3 to 5 feet. 
.tonight...south winds 15 to 20 knots with gusts to around
30 knots. waves 5 to 7 feet. waves occasionally around 9 feet. 
.thursday...south winds 15 to 20 knots with gusts to around
30 knots becoming southwest 10 to 15 knots early in the
afternoon. a chance of rain. waves 5 to 7 feet. waves
occasionally around 10 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...north winds 5 to 10 knots. a chance of rain in the
morning. a chance of snow. 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 northeast 5 to
10 knots early in the evening veering to the east. 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 . waves occasionally around 8 feet. 


$$

fzus63 kdtx 081335
glflh 
expires:202604082145;;031255

open lake forecast for lake huron
national weather service detroit/pontiac mi
935 am edt wed apr 8 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...increasing southerly winds today as low pressure,
29.70 inches, tracks through lake superior this evening. brief
gusts to gales possible over northern lake huron. showers spread
in tonight into thursday as the associated cold front swings
south.


lhz361>363-082145-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
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-
935 am edt wed apr 8 2026

.rest of today...southeast winds 15 to 25 knots with gusts to 
around 30 knots. waves 6 to 9 feet. waves occasionally around 12 
feet. 
.tonight...southeast winds 20 to 25 knots becoming south 15 to
20 knots early in the morning. gusts to 30 knots. a chance of
rain after midnight. waves 10 to 14 feet. waves occasionally
around 18 feet. 
.thursday...southwest winds 15 to 20 knots. waves 8 to 12 feet
subsiding to 4 to 6 feet early in the afternoon. waves
occasionally around 15 feet. 
.thursday night...west winds 10 to 15 knots. a chance of rain and
snow after midnight. waves 4 to 6 feet subsiding to 1 to 3 feet
after midnight. waves occasionally around 8 feet. 
.friday...light and variable winds becoming northeast 5 to
10 knots late in the morning...then 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...west winds 5 to 10 knots veering to the northeast
early in the evening...then becoming southeast 10 to 15 knots by
midnight. waves 1 to 3 feet. 
.sunday...southeast winds 15 to 20 knots becoming south 20 to
25 knots with gusts to around 30 knots by midnight. a chance of
rain in the late morning and early afternoon. rain likely 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. 


$$

fzus63 kdtx 081334
glfsc 
expires:202604082145;;031254

lake st clair forecast
national weather service detroit/pontiac mi
934 am edt wed apr 8 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...increasing southerly winds today as low pressure,
29.70 inches, tracks through lake superior this evening. brief
gusts to gales possible over northern lake huron. showers spread
in tonight into thursday as the associated cold front swings
south.


lcz460-082145-
lake st clair-
934 am edt wed apr 8 2026

.rest of today...southeast winds around 15 knots. mostly sunny. 
waves 2 feet or less.
.tonight...south winds 10 to 15 knots. partly cloudy in the evening
then clearing. waves 1 to 3 feet.
.thursday...southwest winds 15 to 20 knots. partly sunny with a
chance of light rain. waves 1 to 3 feet.
.thursday night...west winds 10 to 15 knots becoming north 5 to 10
knots by midnight...then veering to the northeast after midnight.
partly cloudy with a chance of light rain early in the
evening...then partly cloudy by midnight. mostly cloudy with rain
likely after midnight. waves 2 feet or less.
.friday...northeast winds 5 to 10 knots. becoming partly cloudy in
the evening. 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 080724
glflh 
expires:202604081530;;018438

open lake forecast for lake huron
national weather service detroit/pontiac mi
324 am edt wed apr 8 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.


lhz362-363-081530-
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-
324 am edt wed apr 8 2026

.today...south winds 15 to 20 knots becoming southeast 20 to
25 knots with gusts to around 30 knots late in the afternoon.
waves 5 to 7 feet building to 8 to 12 feet in the afternoon.
waves occasionally around 15 feet. 
.tonight...south winds 20 to 25 knots with gusts to around
30 knots. a chance of rain 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 8 to 12 feet subsiding to
4 to 6 feet early in the afternoon. waves occasionally around
15 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...light and variable winds becoming northeast 5 to
10 knots late in the morning...then 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...southeast winds 15 to 20 knots becoming south 20 to
25 knots with gusts to around 30 knots by midnight. a chance of
rain. waves 5 to 7 feet building to 8 to 12 feet by midnight.
waves occasionally around 15 feet. 


$$

fzus63 kdtx 080724
glflh 
expires:202604081530;;018437

open lake forecast for lake huron
national weather service detroit/pontiac mi
324 am edt wed apr 8 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.


lhz361-081530-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
324 am edt wed apr 8 2026

.today...south winds 10 to 15 knots becoming southeast 15 to
20 knots in the late morning and afternoon. a chance of snow in
the afternoon. waves 4 to 6 feet building to 6 to 9 feet in the
afternoon. waves occasionally around 12 feet. 
.tonight...southeast winds 20 to 25 knots with gusts to around
30 knots veering to the south early in the morning. a chance of
rain in the evening...then rain after midnight. 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...west winds 5 to 10 knots veering to the northeast
early in the evening...then becoming southeast 10 to 15 knots by
midnight. waves 1 to 3 feet. 
.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 kmkx 081403
glflm 
expires:202604082115;;031974

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
903 am cdt wed apr 8 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 over the lower great lakes will
continue eastward this morning. low pressure around 29.5 inches 
tracking along the northern great plains and canadian border will
track north of lake superior tonight into thursday morning. this 
will result in very 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 two thirds of the lake.

much lighter westerly winds are then expected on thursday in the
wake of a cold front. light and variable winds will prevail into 
saturday, until breezy southerly winds return late in the weekend.


lmz261-362-364-366-563-565-567-868-082115-
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-
903 am cdt wed apr 8 2026

sheboygan wi to pentwater mi north...

...gale warning in effect through late tonight...

.rest of today...south gales to 40 kt. snow showers likely with a
chance of rain showers late this morning, then chance of rain
showers this afternoon. waves 8 to 11 ft occasionally to 14 ft
building to 10 to 14 ft occasionally to 18 ft. 
.tonight...south gales to 40 kt becoming southwest gales to 35 kt
after midnight, then diminishing to 15 to 25 kt late. rain
showers in the evening, then slight 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 15 to 25 kt becoming west 10 to
20 kt. 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 east.
chance of rain showers overnight. waves 1 to 3 ft subsiding to
1 to 2 ft. 
.friday...north winds 5 to 10 kt becoming northwest. waves 1 ft
or less. 
.friday night...northeast winds 5 to 10 kt veering to south.
waves 1 ft or less. 
.saturday...south winds 5 to 10 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 kmkx 081403
glflm 
expires:202604082115;;031975

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
903 am cdt wed apr 8 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 over the lower great lakes will
continue eastward this morning. low pressure around 29.5 inches 
tracking along the northern great plains and canadian border will
track north of lake superior tonight into thursday morning. this 
will result in very 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 two thirds of the lake.

much lighter westerly winds are then expected on thursday in the
wake of a cold front. light and variable winds will prevail into 
saturday, until breezy southerly winds return late in the weekend.


lmz669-671-673-675-870-872-874-876-082115-
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 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-
903 am cdt wed apr 8 2026

sheboygan wi to pentwater mi south to winthrop harbor il to south
haven mi...

...gale warning in effect through late tonight...

.rest of today...south gales to 40 kt diminishing to gales to
35 kt. chance of rain showers late this morning. waves 7 to 10 ft
occasionally to 13 ft building to 8 to 12 ft occasionally to
16 ft. 
.tonight...south gales to 35 kt becoming southwest to 30 kt.
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...southwest winds 10 to 20 kt diminishing to 5 to
10 kt. waves 4 to 7 ft occasionally to 9 ft subsiding to 1 to
3 ft. 
.thursday night...east winds 5 to 10 kt becoming northeast. rain
showers. waves 1 to 2 ft. 
.friday...north winds 5 to 10 kt increasing to 10 to 15 kt.
chance of rain showers in the morning. waves 1 to 2 ft. 
.friday night...northeast winds 5 to 10 kt. waves 1 to 2 ft.
.saturday...east winds 5 to 10 kt becoming southeast. waves 1 ft
or less. 
.sunday...south winds to 30 kt. chance of rain showers. waves
7 to 10 ft occasionally to 13 ft.  

$$

fzus63 kmkx 081403
glflm 
expires:202604082115;;031976

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
903 am cdt wed apr 8 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 over the lower great lakes will
continue eastward this morning. low pressure around 29.5 inches 
tracking along the northern great plains and canadian border will
track north of lake superior tonight into thursday morning. this 
will result in very 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 two thirds of the lake.

much lighter westerly winds are then expected on thursday in the
wake of a cold front. light and variable winds will prevail into 
saturday, until breezy southerly winds return late in the weekend.


lmz080-777-779-878-082115-
lake michigan from michigan city in to st. joseph mi 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 st. joseph to south haven mi 5 nm offshore to
mid lake-
903 am cdt wed apr 8 2026

winthrop harbor il to south haven mi south...

.rest of today...south winds to 30 kt. slight chance of rain
showers late this morning. waves 4 to 7 ft occasionally to 9 ft. 
.tonight...south winds to 30 kt becoming southwest. showers
likely with slight chance of thunderstorms overnight. waves 4 to
7 ft occasionally to 9 ft. 
.thursday...southwest winds 10 to 20 kt diminishing to 10 to
15 kt late in the morning, then diminishing to 5 to 10 kt early
in the afternoon backing to southeast late. chance of rain
showers in the morning. waves 3 to 5 ft subsiding to 1 to 2 ft. 
.thursday night...northeast winds 5 to 10 kt increasing to 10 to
15 kt. rain showers. waves 1 ft or less. 
.friday...northeast winds 10 to 15 kt becoming north. rain
showers in the morning, then chance of rain showers in the
afternoon. waves 1 to 2 ft. 
.friday night...northeast winds 5 to 10 kt. waves 1 to 2 ft.
.saturday...east winds 5 to 10 kt becoming northeast. waves 1 ft
or less. 
.sunday...south winds 10 to 20 kt increasing to 15 to 25 kt.
waves 3 to 5 ft.  

$$

fzus63 kmkx 080803
glflm 
expires:202604081515;;019518

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
303 am cdt wed apr 8 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 over the lower great lakes will
continue eastward this morning. low pressure around 29.5 inches 
tracking along the northern great plains and canadian border will
track north of lake superior tonight into thursday morning. this 
will result in very 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 two thirds of the lake.

much lighter westerly winds are then expected on thursday in the
wake of a cold front. light and variable winds will prevail into 
saturday, until breezy southerly winds return late in the weekend.


lmz080-675-777-779-876-878-081515-
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-
303 am cdt wed apr 8 2026

wind point wi to holland mi south...

.today...south winds to 30 kt. scattered rain showers this
morning. waves 4 to 6 ft occasionally to 8 ft building to 4 to
7 ft occasionally to 9 ft. 
.tonight...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 diminishing to 10 to
15 kt late in the morning, then becoming west early in the
afternoon veering to northeast 5 to 10 kt late. waves 4 to 6 ft
occasionally to 8 ft subsiding to 1 to 3 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...northeast winds 5 to 10 kt becoming north 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. chance of rain showers. waves
4 to 6 ft occasionally to 8 ft.  

$$

fzus63 kmkx 080803
glflm 
expires:202604081515;;019517

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
303 am cdt wed apr 8 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 over the lower great lakes will
continue eastward this morning. low pressure around 29.5 inches 
tracking along the northern great plains and canadian border will
track north of lake superior tonight into thursday morning. this 
will result in very 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 two thirds of the lake.

much lighter westerly winds are then expected on thursday in the
wake of a cold front. light and variable winds will prevail into 
saturday, until breezy southerly winds return late in the weekend.


lmz669-671-673-870-872-874-081515-
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-
303 am cdt wed apr 8 2026

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

...gale warning in effect from 7 am cdt this morning through late
tonight...

.today...south winds to 30 kt increasing to gales to 35 kt by mid
morning. scattered rain showers with isolated snow showers this 
morning. waves 5 to 8 ft occasionally to 10 ft building to 8 to 12
ft occasionally to 16 ft. 
.tonight...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...southwest winds 10 to 20 kt diminishing to 10 to
15 kt. waves 4 to 7 ft occasionally to 9 ft subsiding to 1 to
3 ft. 
.thursday night...east winds 5 to 10 kt becoming northeast.
chance of rain showers. waves 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 becoming east 5 to
10 kt. waves 1 to 2 ft. 
.saturday...east winds 5 to 10 kt becoming southeast. waves 1 ft
or less. 
.sunday...south winds to 30 kt. chance of rain showers. waves
7 to 10 ft occasionally to 13 ft.  

$$

fzus63 kmqt 081404 cca
glfls 
expires:202604082000;;032071

open lake forecast for lake superior...corrected
national weather service marquette mi
1004 am edt wed apr 8 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 30.6 inch high over new england this morning moves into the 
atlantic later today as a 29.6 inch low moves through southern 
manitoba towards thunder bay. the low moves north of lake superior 
tonight, reaching james bay by thursday afternoon as high pressure 
builds back into the upper great lakes thursday and friday. the high 
builds 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. this low pushes east through the upper great 
lakes sunday night before lifting into northern quebec by monday.



lsz162-082000-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
1004 am edt wed apr 8 2026 /904 am cdt wed apr 8 2026/

.rest of today...southeast winds 10 to 20 knots veering southwest
late. a chance of rain showers, possibly mixed with snow by late
morning, then rain showers by mid afternoon. waves 2 to 4 feet
subsiding to 1 to 3 feet. 
.tonight...southwest winds 10 to 20 knots increasing to 15 to
25 knots after midnight, then becoming west 20 to 30 knots late.
a slight chance of rain showers through midnight. waves subsiding
to calm to 2 feet, then building to 3 to 6 feet occasionally to
8 feet. 
.thursday...west winds 15 to 25 knots diminishing to 5 to
15 knots. 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...west winds 5 to 15 knots. waves calm to 2 feet. 
.saturday...east winds 5 to 15 knots increasing to 10 to
20 knots. rain showers. waves building to 2 to 4 feet. 
.sunday...east winds 10 to 20 knots increasing to 15 to 25 knots.
rain showers. waves building to 3 to 5 feet occasionally to
7 feet, then subsiding to 1 to 3 feet. 

$$

fzus63 kmqt 081404 cca
glfls 
expires:202604082000;;032072

open lake forecast for lake superior...corrected
national weather service marquette mi
1004 am edt wed apr 8 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 30.6 inch high over new england this morning moves into the 
atlantic later today as a 29.6 inch low moves through southern 
manitoba towards thunder bay. the low moves north of lake superior 
tonight, reaching james bay by thursday afternoon as high pressure 
builds back into the upper great lakes thursday and friday. the high 
builds 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. this low pushes east through the upper great 
lakes sunday night before lifting into northern quebec by monday.



lsz263-082000-
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-
1004 am edt wed apr 8 2026

.rest of today...southeast winds 15 to 25 knots veering south
late. a chance of snow and rain showers by late morning, then
rain showers by mid afternoon. waves 3 to 5 feet occasionally to
7 feet. 
.tonight...southwest winds 10 to 20 knots increasing to 20 to
30 knots after midnight, then veering west late. a chance of rain
showers through midnight. waves subsiding to 2 to 4 feet, then
building to 5 to 8 feet occasionally to 10 feet. 
.thursday...west winds 20 to 30 knots diminishing to 10 to
20 knots. waves building to 6 to 9 feet occasionally to 11 feet,
then 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...west winds 5 to 15 knots becoming southwest less
than 10 knots after midnight. waves calm to 2 feet. 
.saturday...south winds 5 to 15 knots becoming southeast 15 to
25 knots. rain showers likely. waves building to 3 to 5 feet
occasionally to 7 feet. 
.sunday...southeast winds 15 to 25 knots veering south. rain
showers. waves subsiding to 2 to 4 feet, then building to 4 to
7 feet occasionally to 9 feet. 

$$

fzus63 kmqt 081404 cca
glfls 
expires:202604082000;;032073

open lake forecast for lake superior...corrected
national weather service marquette mi
1004 am edt wed apr 8 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 30.6 inch high over new england this morning moves into the 
atlantic later today as a 29.6 inch low moves through southern 
manitoba towards thunder bay. the low moves north of lake superior 
tonight, reaching james bay by thursday afternoon as high pressure 
builds back into the upper great lakes thursday and friday. the high 
builds 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. this low pushes east through the upper great 
lakes sunday night before lifting into northern quebec by monday.



lsz264-082000-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
1004 am edt wed apr 8 2026

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

$$

fzus63 kmqt 081404 cca
glfls 
expires:202604082000;;032074

open lake forecast for lake superior...corrected
national weather service marquette mi
1004 am edt wed apr 8 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 30.6 inch high over new england this morning moves into the 
atlantic later today as a 29.6 inch low moves through southern 
manitoba towards thunder bay. the low moves north of lake superior 
tonight, reaching james bay by thursday afternoon as high pressure 
builds back into the upper great lakes thursday and friday. the high 
builds 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. this low pushes east through the upper great 
lakes sunday night before lifting into northern quebec by monday.



lsz265-082000-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
1004 am edt wed apr 8 2026

.rest of today...southeast winds 20 to 30 knots veering south in
the afternoon, then backing southeast late. a chance of snow
showers by late morning. a chance of rain showers. waves 3 to
6 feet occasionally to 8 feet building to 6 to 9 feet
occasionally to 11 feet. 
.tonight...southwest winds to 30 knots with a few gale force
gusts to 35 knots possible diminishing to 15 to 25 knots after
midnight, then becoming west 20 to 30 knots late. rain showers
through midnight. waves subsiding to 2 to 4 feet, then building
to 3 to 5 feet occasionally to 7 feet. 
.thursday...west winds to 30 knots with a few gale force gusts to
35 knots possible diminishing to 15 to 25 knots late. 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...west winds 5 to 15 knots becoming southwest 10 to
20 knots after midnight. waves calm to 2 feet. 
.saturday...southeast winds 5 to 15 knots increasing to 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
building to 5 to 8 feet occasionally to 10 feet, then subsiding
to 3 to 6 feet occasionally to 8 feet. 

$$

fzus63 kmqt 081404 cca
glfls 
expires:202604082000;;032075

open lake forecast for lake superior...corrected
national weather service marquette mi
1004 am edt wed apr 8 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 30.6 inch high over new england this morning moves into the 
atlantic later today as a 29.6 inch low moves through southern 
manitoba towards thunder bay. the low moves north of lake superior 
tonight, reaching james bay by thursday afternoon as high pressure 
builds back into the upper great lakes thursday and friday. the high 
builds 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. this low pushes east through the upper great 
lakes sunday night before lifting into northern quebec by monday.



lsz266-082000-
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-
1004 am edt wed apr 8 2026

...gale warning in effect until 10 pm edt this evening...

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

$$

fzus63 kmqt 081404 cca
glfls 
expires:202604082000;;032076

open lake forecast for lake superior...corrected
national weather service marquette mi
1004 am edt wed apr 8 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 30.6 inch high over new england this morning moves into the 
atlantic later today as a 29.6 inch low moves through southern 
manitoba towards thunder bay. the low moves north of lake superior 
tonight, reaching james bay by thursday afternoon as high pressure 
builds back into the upper great lakes thursday and friday. the high 
builds 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. this low pushes east through the upper great 
lakes sunday night before lifting into northern quebec by monday.



lsz267-082000-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
1004 am edt wed apr 8 2026

.rest of today...south winds to 30 knots with a few gale force
gusts to 35 knots possible becoming southeast to 30 knots with a
few gale force gusts to 40 knots possible in the afternoon. snow
showers likely by late morning, then a chance of rain showers,
possibly mixed with snow by mid afternoon. waves 3 to 6 feet
occasionally to 8 feet building to 5 to 8 feet occasionally to
10 feet. 
.tonight...south winds to 30 knots with a few gale force gusts to
40 knots possible becoming southwest 20 to 30 knots after
midnight, then diminishing to 15 to 25 knots late. rain showers
through midnight, then a slight chance of rain showers after
midnight. waves subsiding to 3 to 6 feet occasionally to 8 feet. 
.thursday...west winds 20 to 30 knots. waves building to 5 to
9 feet occasionally to 11 feet. 
.thursday night...west winds 10 to 20 knots becoming southwest
5 to 15 knots after midnight. 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 backing southwest after
midnight. waves calm to 2 feet. 
.saturday...southwest winds 5 to 15 knots becoming southeast
20 to 30 knots. a chance of rain showers. waves building to 3 to
6 feet occasionally to 8 feet. 
.sunday...southeast winds 20 to 30 knots veering south. rain
showers. waves building to 4 to 7 feet occasionally to 9 feet,
then subsiding to 3 to 6 feet occasionally to 8 feet. 

$$