fzus61 kbuf 301403
glflo 
expires:202607302100;;335794

open lake forecast for lake ontario
national weather service buffalo ny
1003 am edt thu jul 30 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 weak trough averaging 29.6 inches exits eastward while a ridge 
averaging 30.0 inches builds from the western great lakes through 
tonight. the ridge exits slowly eastward friday through saturday 
before a cold front sweeps eastward across lake ontario on sunday. 
in the wake of the front, a 30.0 inch high builds over the western 
great lakes builds southeast across the lower great lakes region 
for monday and tuesday.


loz063>065-302100-
lake ontario open waters from hamlin beach to the saint lawrence
river-
1003 am edt thu jul 30 2026

.this afternoon...north winds 5 to 10 knots becoming west. waves
1 to 3 feet. 
.tonight...west winds 10 knots or less becoming northwest. waves
1 foot or less. 
.friday...northwest winds 10 knots or less becoming west. waves
1 foot or less. 
.friday night...southwest winds 10 knots or less becoming south.
waves 1 foot or less. 
.saturday...south winds 10 knots or less. a chance of showers
during the day, then showers likely with a chance of
thunderstorms saturday night. waves 1 foot or less. 
.sunday...southwest winds 10 knots or less becoming north.
showers likely with a chance of thunderstorms during the day,
then a chance of showers sunday night. waves 1 foot or less. 
.monday...north winds 10 knots or less becoming west. waves
1 foot or less. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kbuf 301403
glflo 
expires:202607302100;;335793

open lake forecast for lake ontario
national weather service buffalo ny
1003 am edt thu jul 30 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 weak trough averaging 29.6 inches exits eastward while a ridge 
averaging 30.0 inches builds from the western great lakes through 
tonight. the ridge exits slowly eastward friday through saturday 
before a cold front sweeps eastward across lake ontario on sunday. 
in the wake of the front, a 30.0 inch high builds over the western 
great lakes builds southeast across the lower great lakes region 
for monday and tuesday.


loz062-302100-
lake ontario open waters from the niagara river to hamlin beach-
1003 am edt thu jul 30 2026

.this afternoon...northwest winds 5 to 10 knots becoming west.
waves 2 feet or less. 
.tonight...west winds 10 knots or less becoming northwest. waves
1 foot or less. 
.friday...west winds less than 10 knots. waves 1 foot or less. 
.friday night...southwest winds 10 knots or less. waves 1 foot or
less. 
.saturday...northeast winds less than 10 knots. a chance of
showers during the day, then showers likely saturday night. waves
1 foot or less. 
.sunday...north winds 10 knots or less. showers likely during the
day. waves 1 foot or less. 
.monday...north winds 10 knots or less becoming west. waves
1 foot or less. 

$$

fzus61 kcle 301425
glfle 
expires:202607302015;;336762

open lake forecast for lake erie
national weather service cleveland oh
1025 am edt thu jul 30 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 30.00 inches will remain over the region through
friday. low pressure 29.60 inches will enter from the west on 
saturday and slowly pass south of the lake through sunday. high 
pressure 30.00 inches will build back into the great lakes region
on monday.


lez162>164-302015-
detroit river lt. to maumee bay oh to reno beach oh beyond 5nm
offshoreline to us-canadian border-
reno beach to the islands oh beyond 5nm off shoreline to us-
canadian border-
the islands to vermilion oh beyond 5 nm off shoreline to us-
canadian border-
1025 am edt thu jul 30 2026

.this afternoon...north winds 10 knots or less becoming southwest.
waves 2 feet or less. 
.tonight...south winds 10 knots or less becoming southwest. waves
1 foot or less. 
.friday...west winds 10 knots or less becoming south. waves
1 foot or less. 
.friday night...southeast winds 10 knots or less. waves 1 foot or
less. 
.saturday...east winds 5 to 10 knots becoming northeast. a chance
of showers during the day, then showers likely saturday night.
waves 2 feet or less. 
.sunday...northeast winds 10 to 15 knots. waves 1 to 2 feet. 
.monday...northeast winds 5 to 15 knots becoming east. waves
2 feet or less. 

$$

fzus61 kcle 301425
glfle 
expires:202607302015;;336764

open lake forecast for lake erie
national weather service cleveland oh
1025 am edt thu jul 30 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 30.00 inches will remain over the region through
friday. low pressure 29.60 inches will enter from the west on 
saturday and slowly pass south of the lake through sunday. high 
pressure 30.00 inches will build back into the great lakes region
on monday.


lez061-168-169-302015-
ripley to buffalo ny extending from 5nm off shoreline to us-
canadian border-geneva-on-the-
lake to conneaut oh beyond 5 nm off shoreline to us-
canadian border-
conneaut oh to ripley ny beyond 5 nm off shoreline to us-
canadian border-
1025 am edt thu jul 30 2026

.this afternoon...north winds 5 to 10 knots becoming west. waves
2 feet or less. 
.tonight...west winds 10 knots or less. waves 1 foot or less. 
.friday...southwest winds less than 10 knots becoming west. waves
1 foot or less. 
.friday night...light and variable winds. waves 1 foot or less. 
.saturday...southeast winds 10 knots or less becoming northeast.
showers likely saturday night. waves 1 foot or less. 
.sunday...northeast winds 5 to 10 knots. a chance of showers
during the day. waves 2 feet or less. 
.monday...northeast winds 5 to 10 knots becoming east. waves
2 feet or less. 

$$

fzus61 kcle 301425
glfle 
expires:202607302015;;336763

open lake forecast for lake erie
national weather service cleveland oh
1025 am edt thu jul 30 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 30.00 inches will remain over the region through
friday. low pressure 29.60 inches will enter from the west on 
saturday and slowly pass south of the lake through sunday. high 
pressure 30.00 inches will build back into the great lakes region
on monday.


lez165>167-302015-
vermilion to avon point oh beyond 5 nm off shoreline to us-
canadian border-
avon point to willowick oh beyond 5 nm off shoreline to us-
canadian border-willowick to geneva-on-the-
lake oh beyond 5nm off shoreline to us-canadian border-
1025 am edt thu jul 30 2026

.this afternoon...north winds 5 to 10 knots becoming west. waves
1 to 3 feet. 
.tonight...west winds 10 knots or less. waves 1 foot or less. 
.friday...southwest winds 10 knots or less becoming west. waves
1 foot or less. 
.friday night...southwest winds 10 knots or less becoming
southeast. waves 1 foot or less. 
.saturday...east winds 5 to 10 knots becoming northeast. a chance
of showers during the day, then showers likely saturday night.
waves 1 foot or less. 
.sunday...northeast winds 5 to 15 knots. waves 2 feet or less. 
.monday...northeast winds 5 to 15 knots becoming east. waves 1 to
2 feet. 

$$

fzus63 kdtx 301356
glfsc 
expires:202607302200;;335535

lake st clair forecast
national weather service detroit/pontiac mi
956 am edt thu jul 30 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, 30.30 inches, governs great lakes
conditions today and friday. low pressure then tracks into the
ohio valley this weekend, with local pressure averaging around
29.90 inches in its wake. this brings rain and isolated
thunderstorm chances to the great lakes friday night and
saturday.


lcz460-302200-
lake st clair-
956 am edt thu jul 30 2026

.rest of today...north winds 5 to 10 knots veering to the northeast
late in the afternoon. sunny. waves 2 feet or less.
.tonight...east winds 5 to 10 knots this evening becoming light and
variable. mostly clear. waves 2 feet or less.
.friday...light and variable winds becoming southeast 5 to 10 knots
early in the afternoon. mostly sunny until late afternoon becoming
mostly cloudy. waves nearly calm.
.friday night...south winds 5 to 10 knots backing to the northeast
after midnight. cloudy. a chance of light showers after midnight.
waves 2 feet or less.
.saturday...northeast winds 5 to 10 knots. mostly cloudy. a chance
of light showers in the morning...then a chance of thunderstorms in
the afternoon. light showers likely in the afternoon and evening.
waves 2 feet or less.
.sunday...north winds 15 to 20 knots. partly cloudy. waves 2 feet or
less.
.monday...east winds 10 to 15 knots. clear. waves 2 feet or less.

$$

fzus63 kdtx 301355
glflh 
expires:202607302200;;335533

open lake forecast for lake huron
national weather service detroit/pontiac mi
955 am edt thu jul 30 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, 30.30 inches, governs great lakes
conditions today and friday. low pressure then tracks into the
ohio valley this weekend, with local pressure averaging around
29.90 inches in its wake. this brings rain and isolated
thunderstorm chances to the great lakes friday night and
saturday.


lhz462>464-302200-
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-
955 am edt thu jul 30 2026

.rest of today...north winds 5 to 10 knots late in the morning
becoming light and variable. waves 2 feet or less. 
.tonight...light and variable winds becoming south 5 to 10 knots
early in the morning. waves 2 feet or less. 
.friday...south winds 5 to 10 knots early in the morning becoming
light and variable...then becoming south 5 to 10 knots early in
the afternoon. waves 2 feet or less. 
.friday night...light and variable winds. a chance of showers and
thunderstorms in the evening...then showers likely and a chance
of thunderstorms after midnight. waves 2 feet or less. 
.saturday...north winds 5 to 10 knots. a chance of showers. waves
2 feet or less. 
.sunday...north winds 5 to 10 knots increasing to 10 to 15 knots
in the late morning and early afternoon...then increasing to
15 to 20 knots early in the evening decreasing to 5 to 10 knots
by midnight. waves 1 to 3 feet building to 3 to 5 feet . 
.monday...northeast winds 5 to 10 knots. waves 1 to 3 feet. 


$$

fzus63 kdtx 301355
glflh 
expires:202607302200;;335532

open lake forecast for lake huron
national weather service detroit/pontiac mi
955 am edt thu jul 30 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, 30.30 inches, governs great lakes
conditions today and friday. low pressure then tracks into the
ohio valley this weekend, with local pressure averaging around
29.90 inches in its wake. this brings rain and isolated
thunderstorm chances to the great lakes friday night and
saturday.


lhz362-363-302200-
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-
955 am edt thu jul 30 2026

.rest of today...light and variable winds. waves 2 feet or less. 
.tonight...light and variable winds becoming east 5 to 10 knots
late in the evening...then veering to the south after midnight.
waves 2 feet or less. 
.friday...south winds 5 to 10 knots. waves 2 feet or less. 
.friday night...south winds 5 to 10 knots early in the evening
becoming light and variable. a chance of showers in the evening...
then showers likely after midnight. waves 2 feet or less. 
.saturday...light and variable winds becoming northeast 5 to
10 knots late in the evening. showers likely in the morning. a
chance of showers late in the morning...then a chance of showers
late in the evening. waves 2 feet or less. 
.sunday...north winds 5 to 10 knots increasing to 10 to 15 knots
in the late morning and early afternoon...then decreasing to 5 to
10 knots . waves 1 to 3 feet. 
.monday...light and variable winds becoming east 5 to 10 knots by
midnight. waves 2 feet or less. 


$$

fzus63 kdtx 301355
glflh 
expires:202607302200;;335531

open lake forecast for lake huron
national weather service detroit/pontiac mi
955 am edt thu jul 30 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, 30.30 inches, governs great lakes
conditions today and friday. low pressure then tracks into the
ohio valley this weekend, with local pressure averaging around
29.90 inches in its wake. this brings rain and isolated
thunderstorm chances to the great lakes friday night and
saturday.


lhz361-302200-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
955 am edt thu jul 30 2026

.rest of today...light and variable winds. waves 2 feet or less. 
.tonight...light and variable winds becoming southwest 5 to
10 knots after midnight. waves 2 feet or less. 
.friday...southwest winds 5 to 10 knots. a chance of showers and
thunderstorms in the afternoon. waves 2 feet or less. 
.friday night...west winds 5 to 10 knots. a chance of showers.
waves 2 feet or less. 
.saturday...northwest winds 5 to 10 knots in the morning becoming
light and variable...then becoming north 5 to 10 knots late in
the evening. a chance of showers. waves 2 feet or less. 
.sunday...north winds 10 to 15 knots becoming northeast 5 to
10 knots in the late morning and early afternoon...then becoming
light and variable . waves 2 feet or less. 
.monday...light and variable winds becoming southeast 5 to
10 knots by midnight. waves 2 feet or less. 


$$

fzus63 kmkx 301341
glflm 
expires:202607302115;;335228

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
841 am cdt thu jul 30 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...

light and variable winds will take on a southerly component this
afternoon as high pressure around 30.0 inches starts to drift 
toward the lower great lakes. low pressure around 29.7 inches will
track across iowa friday and through southern illinois by 
saturday morning. the approaching area of low pressure will bring
chances for showers and a few thunderstorms friday into saturday.
severe weather is not expected in any of this activity. breezy 
northeast winds will develop saturday and should continue through 
sunday afternoon as high pressure of 30.0 inches builds over lake 
superior.


lmz261-362-364-366-563-565-567-868-302115-
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-
841 am cdt thu jul 30 2026

sheboygan wi to pentwater mi north...

.rest of today...southwest winds 5 to 10 kt becoming south 10 to
20 kt. patchy smoke. waves 1 to 3 ft. 
.tonight...southwest winds 10 to 20 kt diminishing to 10 to
15 kt. slight chance of showers and thunderstorms overnight.
waves 1 to 3 ft. 
.friday...southwest winds 10 to 15 kt increasing to 10 to 20 kt.
chance of showers in the afternoon. waves 1 to 2 ft. 
.friday night...west winds 10 to 15 kt becoming northwest. chance
of showers. waves 1 to 2 ft. 
.saturday...north winds 10 to 15 kt increasing to 10 to 20 kt.
waves 1 to 2 ft. 
.saturday night...north winds 10 to 20 kt. waves 1 to 3 ft
building to 2 to 4 ft. 
.sunday...northeast winds 15 to 25 kt becoming north to 30 kt.
waves 3 to 5 ft. 
.monday...southeast winds 5 to 10 kt becoming south 10 to 20 kt.
waves 1 to 2 ft.  

$$

fzus63 kmkx 301341
glflm 
expires:202607302115;;335229

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
841 am cdt thu jul 30 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...

light and variable winds will take on a southerly component this
afternoon as high pressure around 30.0 inches starts to drift 
toward the lower great lakes. low pressure around 29.7 inches will
track across iowa friday and through southern illinois by 
saturday morning. the approaching area of low pressure will bring
chances for showers and a few thunderstorms friday into saturday.
severe weather is not expected in any of this activity. breezy 
northeast winds will develop saturday and should continue through 
sunday afternoon as high pressure of 30.0 inches builds over lake 
superior.


lmz080-669-671-673-675-777-779-870-872-874-876-878-302115-
lake michigan from michigan city in to st. joseph mi 5 nm
offshore to mid lake-
lake michigan from sheboygan to port washington wi 5 nm offshore
to mid lake-
lake michigan from port washington to north point light wi 5 nm
offshore to mid lake-
lake michigan from north point light to wind point wi 5 nm
offshore to mid lake-
lake michigan from wind point wi to winthrop harbor il 5 nm
offshore to mid lake-
lake michigan from winthrop harbor to wilmette harbor il 5 nm
offshore to mid lake-
lake michigan from wilmette harbor il to michigan city in 5 nm
offshore to mid lake-
lake michigan from whitehall to pentwater mi 5 nm offshore to mid
lake-
lake michigan from grand haven to whitehall mi 5 nm offshore to
mid lake-
lake michigan from holland to grand haven mi 5 nm offshore to mid
lake-
lake michigan from south haven to holland mi 5 nm offshore to mid
lake-
lake michigan from st. joseph to south haven mi 5 nm offshore to
mid lake-
841 am cdt thu jul 30 2026

sheboygan wi to pentwater mi south...

.rest of today...west winds 5 to 10 kt becoming southwest early
this afternoon, then becoming south 10 to 20 kt late. waves 1 to
2 ft. 
.tonight...south winds 10 to 20 kt becoming southwest 10 to
15 kt. waves 1 to 3 ft. 
.friday...southwest winds 5 to 10 kt backing to southeast 10 to
15 kt. waves 1 to 2 ft. 
.friday night...east winds 10 to 20 kt becoming northeast.
showers likely. waves 1 to 3 ft building to 3 to 5 ft. 
.saturday...northeast winds 15 to 25 kt increasing to 30 kt.
chance of showers in the morning. waves 4 to 6 ft occasionally to
8 ft. 
.saturday night...northeast winds 15 to 25 kt. waves 4 to 6 ft
occasionally to 8 ft. 
.sunday...north winds 15 to 25 kt increasing to 30 kt. waves 4 to
6 ft occasionally to 8 ft. 
.monday...east winds 5 to 10 kt increasing to 10 to 20 kt. waves
2 to 4 ft subsiding to 1 to 2 ft.  

$$

fzus63 kmqt 301401
glfls 
expires:202607302000;;335723

open lake forecast for lake superior
national weather service marquette mi
1001 am edt thu jul 30 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... 

weak 30.0 inch ridging remains over lake superior through this 
morning. then weak troughing of 28.8 to 29.9 inches moves over the 
lake this afternoon through early friday. ridging of 30.0 to 30.1 
inches returns this weekend into early next week.




lsz266-302000-
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-
1001 am edt thu jul 30 2026

.rest of today...south winds 5 to 15 knots. patchy smoke. a
slight chance of showers. a slight chance of thunderstorms by mid
afternoon. waves calm to 2 feet. 
.tonight...south winds 5 to 15 knots becoming southwest 10 to
20 knots after midnight, then becoming west 5 to 15 knots late. a
slight chance of showers and thunderstorms. patchy smoke after
midnight. waves calm to 2 feet. 
.friday...west winds 5 to 15 knots. patchy smoke through early
afternoon. a chance of showers. a slight chance of thunderstorms
by mid afternoon. waves calm to 2 feet. 
.friday night...west winds 5 to 15 knots veering north after
midnight. a slight chance of showers and thunderstorms through
midnight. waves calm to 2 feet. 
.saturday...north winds 5 to 15 knots increasing to 10 to
20 knots by mid afternoon. waves calm to 2 feet. 
.saturday night...north winds 10 to 20 knots veering northeast
after midnight. waves calm to 2 feet. 
.sunday...northeast winds 5 to 15 knots veering south. waves calm
to 2 feet. 
.monday...south winds 10 to 20 knots increasing to 15 to
25 knots. waves building to 2 to 4 feet. 

$$

fzus63 kmqt 301401
glfls 
expires:202607302000;;335724

open lake forecast for lake superior
national weather service marquette mi
1001 am edt thu jul 30 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... 

weak 30.0 inch ridging remains over lake superior through this 
morning. then weak troughing of 28.8 to 29.9 inches moves over the 
lake this afternoon through early friday. ridging of 30.0 to 30.1 
inches returns this weekend into early next week.




lsz267-302000-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
1001 am edt thu jul 30 2026

.rest of today...southeast winds 5 to 15 knots. patchy smoke by
mid afternoon. a slight chance of showers and thunderstorms by
mid afternoon. waves calm to 2 feet. 
.tonight...south winds 5 to 15 knots veering southwest after
midnight. patchy smoke. a chance of showers and a slight chance
of thunderstorms. waves calm to 2 feet. 
.friday...west winds 5 to 15 knots. a slight chance of showers
through early afternoon. patchy smoke. waves calm to 2 feet. 
.friday night...west winds 5 to 15 knots veering northwest after
midnight. a chance of showers and a slight chance of
thunderstorms. waves calm to 2 feet. 
.saturday...north winds 5 to 15 knots becoming northwest 10 to
20 knots by mid afternoon. waves calm to 2 feet. 
.saturday night...north winds 10 to 20 knots veering northeast
after midnight. waves calm to 2 feet. 
.sunday...north winds 5 to 15 knots backing northwest. waves calm
to 2 feet. 
.monday...southeast winds 5 to 15 knots becoming south 10 to
20 knots. waves building to 1 to 3 feet. 

$$

fzus63 kmqt 301401
glfls 
expires:202607302000;;335719

open lake forecast for lake superior
national weather service marquette mi
1001 am edt thu jul 30 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... 

weak 30.0 inch ridging remains over lake superior through this 
morning. then weak troughing of 28.8 to 29.9 inches moves over the 
lake this afternoon through early friday. ridging of 30.0 to 30.1 
inches returns this weekend into early next week.




lsz162-302000-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
1001 am edt thu jul 30 2026 /901 am cdt thu jul 30 2026/

.rest of today...southwest winds 10 to 20 knots increasing to
15 to 25 knots in the afternoon, then becoming west 10 to
20 knots late. a chance of showers and thunderstorms. waves calm
to 2 feet building to 1 to 3 feet, then subsiding to calm to
2 feet. 
.tonight...west winds 5 to 15 knots backing southwest after
midnight, then veering west late. patchy smoke. a chance of
showers and a slight chance of thunderstorms. waves calm to
2 feet. 
.friday...west winds 5 to 15 knots. patchy smoke. a chance of
showers. a slight chance of thunderstorms by mid afternoon. waves
calm to 2 feet. 
.friday night...west winds 5 to 15 knots veering north after
midnight. waves calm to 2 feet. 
.saturday...northeast winds 5 to 15 knots. waves calm to 2 feet. 
.saturday night...north winds 5 to 15 knots becoming northeast
less than 10 knots after midnight. waves calm to 2 feet. 
.sunday...northeast winds 5 to 15 knots. waves calm to 2 feet. 
.monday...south winds 5 to 15 knots becoming southwest 10 to
20 knots. a chance of showers. waves calm to 2 feet. 

$$

fzus63 kmqt 301401
glfls 
expires:202607302000;;335720

open lake forecast for lake superior
national weather service marquette mi
1001 am edt thu jul 30 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... 

weak 30.0 inch ridging remains over lake superior through this 
morning. then weak troughing of 28.8 to 29.9 inches moves over the 
lake this afternoon through early friday. ridging of 30.0 to 30.1 
inches returns this weekend into early next week.




lsz263-302000-
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-
1001 am edt thu jul 30 2026

.rest of today...southwest winds 5 to 15 knots increasing to
10 to 20 knots in the afternoon, then veering west late. patchy
smoke by late morning. a slight chance of showers. a slight
chance of thunderstorms by mid afternoon. waves calm to 2 feet
building to 2 to 4 feet, then subsiding to 1 to 3 feet. 
.tonight...west winds 10 to 20 knots diminishing to 5 to 15 knots
after midnight. a slight chance of showers and thunderstorms.
waves subsiding to calm to 2 feet. 
.friday...west winds 5 to 15 knots. patchy smoke through early
afternoon. a slight chance of showers and thunderstorms. waves
calm to 2 feet. 
.friday night...west winds 5 to 15 knots veering north after
midnight. waves calm to 2 feet. 
.saturday...northeast winds 5 to 15 knots. waves calm to 2 feet. 
.saturday night...north winds 5 to 15 knots becoming northeast
less than 10 knots after midnight. waves calm to 2 feet. 
.sunday...east winds 5 to 15 knots veering southeast. waves calm
to 2 feet. 
.monday...south winds 10 to 20 knots veering southwest. waves
building to 1 to 3 feet. 

$$

fzus63 kmqt 301401
glfls 
expires:202607302000;;335721

open lake forecast for lake superior
national weather service marquette mi
1001 am edt thu jul 30 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... 

weak 30.0 inch ridging remains over lake superior through this 
morning. then weak troughing of 28.8 to 29.9 inches moves over the 
lake this afternoon through early friday. ridging of 30.0 to 30.1 
inches returns this weekend into early next week.




lsz264-302000-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
1001 am edt thu jul 30 2026

.rest of today...southwest winds 5 to 15 knots increasing to
10 to 20 knots in the afternoon. patchy smoke by late morning. a
slight chance of showers by late morning. waves calm to 2 feet
building to 1 to 3 feet. 
.tonight...southwest winds 5 to 15 knots veering west after
midnight. a slight chance of showers and thunderstorms. waves
subsiding to calm to 2 feet. 
.friday...west winds 5 to 15 knots. a slight chance of showers.
waves calm to 2 feet. 
.friday night...west winds 5 to 15 knots veering north after
midnight. waves calm to 2 feet. 
.saturday...north winds 5 to 15 knots. waves calm to 2 feet. 
.saturday night...north winds 5 to 15 knots becoming northeast
less than 10 knots after midnight. waves calm to 2 feet. 
.sunday...east winds 5 to 15 knots veering southeast. waves calm
to 2 feet. 
.monday...south winds 5 to 15 knots increasing to 10 to 20 knots.
waves building to 1 to 3 feet. 

$$

fzus63 kmqt 301401
glfls 
expires:202607302000;;335722

open lake forecast for lake superior
national weather service marquette mi
1001 am edt thu jul 30 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... 

weak 30.0 inch ridging remains over lake superior through this 
morning. then weak troughing of 28.8 to 29.9 inches moves over the 
lake this afternoon through early friday. ridging of 30.0 to 30.1 
inches returns this weekend into early next week.




lsz265-302000-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
1001 am edt thu jul 30 2026

.rest of today...south winds 10 to 20 knots veering southwest
late. patchy smoke by late morning. a chance of showers. a slight
chance of thunderstorms by mid afternoon. waves calm to 2 feet. 
.tonight...southwest winds 10 to 20 knots veering west late. a
slight chance of thunderstorms through midnight. a slight chance
of showers. waves calm to 2 feet. 
.friday...west winds 10 to 20 knots becoming southwest 5 to
15 knots late. patchy smoke through early afternoon. a chance of
showers. a slight chance of thunderstorms by mid afternoon. waves
calm to 2 feet. 
.friday night...west winds 5 to 15 knots veering north after
midnight. a slight chance of showers and thunderstorms through
midnight. waves calm to 2 feet. 
.saturday...north winds 10 to 20 knots diminishing to 5 to
15 knots by mid afternoon. waves calm to 2 feet. 
.saturday night...north winds 5 to 15 knots. waves calm to
2 feet. 
.sunday...northeast winds 5 to 15 knots veering southeast. waves
calm to 2 feet. 
.monday...southeast winds 10 to 20 knots becoming south 15 to
25 knots. waves building to 1 to 3 feet, then subsiding to calm
to 2 feet. 

$$