fzus61 kbuf 141402
glflo 
expires:202608142100;;175950

open lake forecast for lake ontario
national weather service buffalo ny
1002 am edt fri aug 14 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 high pressure ridge averaging 30.2 inches builds from the canadian 
prairies before settling over lake ontario and vicinity by saturday. 
the ridge begins to exit eastward saturday night and a low of 29.7 
inches should move generally east-southeastward from near the 
northern great lakes to near the gulf of maine saturday night 
through monday. this low track should allow a warm front to sweep 
northeastward across lake ontario saturday night and especially on 
sunday before a cold front sweeps eastward across the lake sunday 
evening through sunday night. behind the cold front, a high pressure 
ridge averaging 30.0 inches should build slowly from the upper 
midwest through tuesday.


loz063>065-142100-
lake ontario open waters from hamlin beach to the saint lawrence
river-
1002 am edt fri aug 14 2026

.this afternoon...northeast winds less than 10 knots. a chance of
showers late. waves 1 foot or less. 
.tonight...northeast winds 10 knots or less becoming east. waves
1 foot or less. 
.saturday...east winds 5 to 10 knots becoming northeast. waves
1 foot or less. 
.saturday night...east winds 5 to 10 knots becoming southeast.
waves 2 feet or less. 
.sunday...southeast winds 5 to 15 knots becoming west. showers
likely with a chance of thunderstorms. waves 2 feet or less. 
.monday...northwest winds 5 to 15 knots becoming north. waves
2 feet or less. 
.tuesday...northwest winds 10 knots or less becoming southwest
10 to 15 knots. waves 1 foot or less. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kbuf 141402
glflo 
expires:202608142100;;175949

open lake forecast for lake ontario
national weather service buffalo ny
1002 am edt fri aug 14 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 high pressure ridge averaging 30.2 inches builds from the canadian 
prairies before settling over lake ontario and vicinity by saturday. 
the ridge begins to exit eastward saturday night and a low of 29.7 
inches should move generally east-southeastward from near the 
northern great lakes to near the gulf of maine saturday night 
through monday. this low track should allow a warm front to sweep 
northeastward across lake ontario saturday night and especially on 
sunday before a cold front sweeps eastward across the lake sunday 
evening through sunday night. behind the cold front, a high pressure 
ridge averaging 30.0 inches should build slowly from the upper 
midwest through tuesday.


loz062-142100-
lake ontario open waters from the niagara river to hamlin beach-
1002 am edt fri aug 14 2026

.this afternoon...light and variable winds. waves 1 foot or less. 
.tonight...east winds 10 knots or less. waves 1 foot or less. 
.saturday...east winds 5 to 10 knots. waves 1 to 2 feet. 
.saturday night...east winds 5 to 10 knots becoming southeast.
waves 1 to 2 feet. 
.sunday...southeast winds 5 to 10 knots becoming northwest.
showers likely with a chance of thunderstorms. waves 1 to 2 feet.
.monday...northwest winds 5 to 10 knots becoming north. waves
1 foot or less. 
.tuesday...northwest winds 10 knots or less becoming southwest.
waves 1 foot or less. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 141319
glfle 
expires:202608142030;;175069

open lake forecast for lake erie
national weather service cleveland oh
919 am edt fri aug 14 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 of 30.30 inches will build into the upper great 
lakes tonight through friday, before departing east on saturday. 
low pressure of 29.90 inches will move across the upper great 
lakes sunday, with a warm front north moving across lake erie in 
the morning and a cold front overnight sunday. high pressure 
30.00 inches returns monday and tuesday.


lez165>167-142030-
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-
919 am edt fri aug 14 2026

.rest of today...east winds 5 to 10 knots becoming northeast.
waves 1 foot or less. 
.tonight...northeast winds 5 to 10 knots becoming east. waves
1 foot or less. 
.saturday...east winds 5 to 10 knots. waves 2 feet or less. 
.saturday night...east winds 10 to 15 knots becoming southeast. a
chance of showers and thunderstorms in the evening, then showers
likely with a chance of thunderstorms overnight. waves 1 to
3 feet. 
.sunday...southwest winds 10 to 15 knots becoming northwest.
showers likely with a chance of thunderstorms during the day,
then a chance of showers and thunderstorms sunday night. waves
2 to 4 feet. 
.monday...north winds 5 to 15 knots. waves 2 feet or less. 
.tuesday...north winds 10 knots or less becoming southwest 10 to
15 knots. waves 1 foot or less. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 141319
glfle 
expires:202608142030;;175070

open lake forecast for lake erie
national weather service cleveland oh
919 am edt fri aug 14 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 of 30.30 inches will build into the upper great 
lakes tonight through friday, before departing east on saturday. 
low pressure of 29.90 inches will move across the upper great 
lakes sunday, with a warm front north moving across lake erie in 
the morning and a cold front overnight sunday. high pressure 
30.00 inches returns monday and tuesday.


lez061-168-169-142030-
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-
919 am edt fri aug 14 2026

.rest of today...east winds 10 knots or less becoming northeast.
waves 1 foot or less. 
.tonight...northeast winds 10 knots or less becoming east. waves
1 foot or less. 
.saturday...east winds 5 to 10 knots becoming northeast. waves
1 foot or less. 
.saturday night...east winds 5 to 15 knots becoming southeast. a
chance of showers overnight. waves 2 feet or less. 
.sunday...south winds 10 to 15 knots becoming northwest. showers
during the day, then showers likely with a chance of
thunderstorms sunday night. waves 2 to 4 feet subsiding to 1 to
3 feet. 
.monday...northwest winds 5 to 15 knots becoming north. waves
2 feet or less. 
.tuesday...northwest winds 10 knots or less becoming southwest
10 to 15 knots. waves 1 foot or less. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 141319
glfle 
expires:202608142030;;175068

open lake forecast for lake erie
national weather service cleveland oh
919 am edt fri aug 14 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 of 30.30 inches will build into the upper great 
lakes tonight through friday, before departing east on saturday. 
low pressure of 29.90 inches will move across the upper great 
lakes sunday, with a warm front north moving across lake erie in 
the morning and a cold front overnight sunday. high pressure 
30.00 inches returns monday and tuesday.


lez162>164-142030-
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-
919 am edt fri aug 14 2026

.rest of today...east winds 5 to 10 knots. a slight chance of
showers late this morning. waves 1 foot or less. 
.tonight...east winds 5 to 10 knots. waves 1 foot or less. 
.saturday...east winds 5 to 10 knots. waves 2 feet or less. 
.saturday night...east winds 5 to 10 knots becoming south.
showers with a chance of thunderstorms. waves 1 to 2 feet. 
.sunday...southwest winds 10 to 15 knots becoming northwest.
showers likely with a chance of thunderstorms during the day.
waves 1 to 3 feet. 
.monday...north winds 5 to 15 knots becoming northeast less than
10 knots. waves 2 feet or less. 
.tuesday...northwest winds 10 knots or less becoming southwest.
waves 1 foot or less. 

winds and waves higher in and near thunderstorms.

$$

fzus63 kdtx 141340
glflh 
expires:202608142145;;175370

open lake forecast for lake huron
national weather service detroit/pontiac mi
940 am edt fri aug 14 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, 30.00 inches, will dominate the region
through saturday. the next low pressure system will pass through
the region on saturday night bringing the next thunderstorm
chances.


lhz362-363-142145-
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-
940 am edt fri aug 14 2026

.rest of today...north winds 5 to 10 knots. waves 2 feet or less.
.tonight...light and variable winds becoming northeast 5 to
10 knots early in the morning. waves 2 feet or less. 
.saturday...east winds 5 to 10 knots. waves 2 feet or less. 
.saturday night...east winds 5 to 10 knots becoming southeast
10 to 15 knots in the late evening and overnight. a chance of
showers after midnight. waves 1 to 3 feet. 
.sunday...south winds 10 to 15 knots becoming southwest 5 to
10 knots late in the morning...then becoming northwest 10 to
15 knots late in the afternoon increasing to 15 to 20 knots late
in the evening. a chance of showers. waves 1 to 3 feet building
to 3 to 5 feet late in the afternoon. 
.monday...northwest winds 10 to 15 knots decreasing to 5 to
10 knots. waves 2 to 4 feet subsiding to 1 to 3 feet . 
.tuesday...southwest winds 5 to 10 knots becoming south 10 to
15 knots early in the evening...then becoming southwest 5 to
10 knots by midnight. a chance of showers by midnight. waves
2 feet or less. 


$$

fzus63 kdtx 141340
glfsc 
expires:202608142145;;175368

lake st clair forecast
national weather service detroit/pontiac mi
940 am edt fri aug 14 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, 30.00 inches, will dominate the region
through saturday. the next low pressure system will pass through
the region on saturday night bringing the next thunderstorm
chances.


lcz460-142145-
lake st clair-
940 am edt fri aug 14 2026

.rest of today...northeast winds 5 to 10 knots. partly sunny. waves
2 feet or less.
.tonight...northeast winds 10 to 15 knots diminishing to 5 to 10
knots after midnight. partly cloudy. waves 2 feet or less.
.saturday...east winds 5 to 10 knots veering to the southeast early
in the afternoon. partly sunny. waves 2 feet or less.
.saturday night...southeast winds 10 to 15 knots. mostly cloudy. a
chance of light showers ...then light showers likely after midnight.
waves 2 feet or less.
.sunday...west winds 10 to 15 knots veering to the northwest in the
evening. mostly cloudy with light showers likely in the
morning...then partly cloudy with light showers likely and a chance
of thunderstorms in the afternoon and evening. waves 2 feet or less.
.monday...northeast winds 10 to 15 knots. mostly clear. waves 2 feet
or less.
.tuesday...southwest winds 5 to 10 knots. mostly clear. waves 2 feet
or less.

$$

fzus63 kdtx 141340
glflh 
expires:202608142145;;175369

open lake forecast for lake huron
national weather service detroit/pontiac mi
940 am edt fri aug 14 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, 30.00 inches, will dominate the region
through saturday. the next low pressure system will pass through
the region on saturday night bringing the next thunderstorm
chances.


lhz361-142145-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
940 am edt fri aug 14 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. waves 2 feet or less. 
.saturday...southeast winds 5 to 10 knots becoming east 10 to
15 knots in the late morning and afternoon. waves 2 feet or less
building to 2 to 4 feet early in the afternoon. 
.saturday night...southeast winds 10 to 15 knots. a chance of
showers after midnight. waves 2 to 4 feet subsiding to 1 to
3 feet after midnight. 
.sunday...south winds 5 to 10 knots becoming southwest 10 to
15 knots late in the morning...then veering to the northwest late
in the afternoon. a chance of showers. waves 1 to 3 feet building
to 2 to 4 feet late in the afternoon. 
.monday...northwest winds 10 to 15 knots becoming west 5 to
10 knots. waves 1 to 3 feet. 
.tuesday...southwest winds 5 to 10 knots veering to the west by
midnight. a chance of showers by midnight. waves 2 feet or less. 


$$

fzus63 kdtx 141340
glflh 
expires:202608142145;;175371

open lake forecast for lake huron
national weather service detroit/pontiac mi
940 am edt fri aug 14 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, 30.00 inches, will dominate the region
through saturday. the next low pressure system will pass through
the region on saturday night bringing the next thunderstorm
chances.


lhz462>464-142145-
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-
940 am edt fri aug 14 2026

.rest of today...north winds 5 to 10 knots. waves 2 feet or less.
.tonight...northeast winds 5 to 10 knots. waves 1 to 3 feet. 
.saturday...east winds 5 to 10 knots. waves 2 feet or less. 
.saturday night...east winds 5 to 10 knots becoming southeast
10 to 15 knots in the late evening and overnight. a chance of
showers after midnight. waves 1 to 3 feet. 
.sunday...southeast winds 10 to 15 knots becoming southwest 5 to
10 knots late in the morning...then veering to the northwest late
in the afternoon increasing to 10 to 15 knots late in the
evening. a chance of showers in the morning...then showers likely
late in the morning. waves 1 to 3 feet building to 2 to 4 feet
late in the evening. 
.monday...north winds 10 to 15 knots becoming light and variable.
waves 2 to 4 feet subsiding to 1 to 3 feet . 
.tuesday...southwest winds 5 to 10 knots increasing to 10 to
15 knots by midnight. a chance of. waves 2 feet or less. 


$$

fzus63 kmkx 141313
glflm 
expires:202608142115;;174994

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
813 am cdt fri aug 14 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...

multiple rounds of storms are expected to cross the southern
portion of lake michigan into this weekend due to a front that
remains in place south of the lake. low pressure around 29.7 
inches over kansas will track to the northeast and east toward 
southern lake michigan into saturday. this low should help to 
increase winds and waves across the southern two thirds of lake 
michigan into saturday. beyond this system, a broad ridge of high 
pressure around 30.1 inches will push into the great lakes early 
next week before another potential system moves through the 
region middle of next week.


lmz261-362-364-563-142115-
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 rock island passage to sturgeon bay wi-
813 am cdt fri aug 14 2026

sturgeon bay wi to point betsie mi north...

.rest of today...northeast winds 10 to 15 kt increasing to 10 to
20 kt. waves 1 to 3 ft. 
.tonight...northeast winds 10 to 20 kt becoming east 10 to 15 kt.
waves 1 to 3 ft. 
.saturday...east winds 10 to 15 kt increasing to 10 to 20 kt.
waves 1 to 3 ft. 
.saturday night...southeast winds 10 to 20 kt veering to
southwest. chance of showers. waves 1 to 3 ft. 
.sunday...northwest winds 10 to 20 kt increasing to 15 to 25 kt.
chance of showers in the morning. waves 1 to 2 ft building to
1 to 3 ft. 
.sunday night...north winds 15 to 25 kt diminishing to 10 to
15 kt. waves 2 to 4 ft. 
.monday...northwest winds 10 to 15 kt becoming west 10 to 20 kt.
waves 1 to 2 ft. 
.tuesday...southwest winds to 30 kt increasing to gales to 35 kt.
waves 2 to 4 ft.  

$$

fzus63 kmkx 141313
glflm 
expires:202608142115;;174995

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
813 am cdt fri aug 14 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...

multiple rounds of storms are expected to cross the southern
portion of lake michigan into this weekend due to a front that
remains in place south of the lake. low pressure around 29.7 
inches over kansas will track to the northeast and east toward 
southern lake michigan into saturday. this low should help to 
increase winds and waves across the southern two thirds of lake 
michigan into saturday. beyond this system, a broad ridge of high 
pressure around 30.1 inches will push into the great lakes early 
next week before another potential system moves through the 
region middle of next week.


lmz366-565-567-669-868-870-142115-
lake michigan from point betsie to manistee mi 5 nm offshore to
mid lake-
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 sheboygan to port washington wi 5 nm offshore
to mid lake-
lake michigan from pentwater to manistee mi 5 nm offshore to mid
lake-
lake michigan from whitehall to pentwater mi 5 nm offshore to mid
lake-
813 am cdt fri aug 14 2026

sturgeon bay wi to point betsie mi south to port washington wi to
whitehall mi...

.rest of today...northeast winds 10 to 20 kt becoming north 15 to
25 kt. waves 2 to 4 ft. 
.tonight...northeast winds 15 to 25 kt veering to east 10 to
20 kt. slight chance of showers overnight. waves 3 to 5 ft. 
.saturday...southeast winds 10 to 20 kt. chance of showers. waves
4 to 6 ft occasionally to 8 ft. 
.saturday night...south winds 10 to 20 kt becoming southwest.
chance of showers. waves 3 to 5 ft subsiding to 1 to 3 ft. 
.sunday...northwest winds 10 to 20 kt becoming north. waves 1 to
3 ft. 
.sunday night...north winds 10 to 20 kt. waves 2 to 4 ft. 
.monday...north winds 10 to 15 kt increasing to 10 to 20 kt.
waves 1 to 3 ft. 
.tuesday...southwest winds 10 to 20 kt increasing to 30 kt. waves
2 to 4 ft.  

$$

fzus63 kmkx 141313
glflm 
expires:202608142115;;174996

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
813 am cdt fri aug 14 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...

multiple rounds of storms are expected to cross the southern
portion of lake michigan into this weekend due to a front that
remains in place south of the lake. low pressure around 29.7 
inches over kansas will track to the northeast and east toward 
southern lake michigan into saturday. this low should help to 
increase winds and waves across the southern two thirds of lake 
michigan into saturday. beyond this system, a broad ridge of high 
pressure around 30.1 inches will push into the great lakes early 
next week before another potential system moves through the 
region middle of next week.


lmz080-671-673-675-777-779-872-874-876-878-142115-
lake michigan from michigan city in to st. joseph mi 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 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-
813 am cdt fri aug 14 2026

port washington wi to whitehall mi south...

.rest of today...east winds 10 to 15 kt becoming north 10 to
20 kt. waves 2 to 4 ft. 
.tonight...north winds 10 to 20 kt veering to southeast. chance
of showers and slight chance of thunderstorms overnight. waves
3 to 5 ft. 
.saturday...southeast winds 10 to 20 kt. showers likely with a
chance of thunderstorms in the morning, then chance of showers
and thunderstorms in the afternoon. waves 4 to 6 ft occasionally
to 8 ft. 
.saturday night...south winds 10 to 20 kt becoming southwest.
chance of showers in the evening, then showers likely overnight.
waves 2 to 4 ft subsiding to 1 to 3 ft. 
.sunday...west winds 10 to 20 kt becoming northwest. chance of
showers in the morning. waves 1 to 3 ft. 
.sunday night...north winds 10 to 15 kt increasing to 10 to
20 kt. waves 2 to 4 ft. 
.monday...north winds 10 to 15 kt increasing to 10 to 20 kt.
waves 2 to 4 ft. 
.tuesday...southwest winds 10 to 15 kt increasing to 10 to 20 kt.
waves 1 to 3 ft.  

$$

fzus63 kmqt 141401
glfls 
expires:202608142000;;175916

open lake forecast for lake superior
national weather service marquette mi
1001 am edt fri aug 14 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...

30.2 high pressure settles over lake superior today. a 29.9 inch low 
over the dakotas tonight moves over the lake saturday night as the 
30.2 inch high moves east into new england. this low deepens to 29.7 
inches as it reaches the lower great lakes by sunday afternoon. 
sunday night into monday, a 30.1 inch high over the plains weakens 
to 30.0 inches as it slides south of lake superior. by tuesday, this 
high is generally south of the great lakes as a 29.5 inch low over 
hudson bay extends a 29.9 inch trough over lake superior. ridging of 
around 30.0 inches could return to the lake by wednesday evening.




lsz162-142000-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
1001 am edt fri aug 14 2026 /901 am cdt fri aug 14 2026/

.rest of today...northeast winds 10 to 20 knots increasing to
15 to 25 knots in the afternoon. waves calm to 2 feet building to
2 to 4 feet. 
.tonight...northeast winds 15 to 25 knots diminishing to 10 to
20 knots after midnight, then veering east late. waves subsiding
to calm to 2 feet. 
.saturday...east winds 10 to 20 knots backing northeast late. a
chance of showers. waves calm to 2 feet. 
.saturday night...northeast winds 5 to 15 knots backing west
after midnight. a chance of showers and a slight chance of
thunderstorms through midnight. waves calm to 2 feet. 
.sunday...northwest winds 10 to 20 knots becoming west 5 to
15 knots by mid afternoon. waves calm to 2 feet. 
.sunday night...northwest winds 5 to 15 knots. waves calm to
2 feet. 
.monday...southwest winds 10 to 20 knots diminishing to 5 to
15 knots. a chance of showers. waves calm to 2 feet. 
.tuesday...west winds 5 to 15 knots veering north. a chance of
showers. waves calm to 2 feet. 

$$

fzus63 kmqt 141401
glfls 
expires:202608142000;;175917

open lake forecast for lake superior
national weather service marquette mi
1001 am edt fri aug 14 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...

30.2 high pressure settles over lake superior today. a 29.9 inch low 
over the dakotas tonight moves over the lake saturday night as the 
30.2 inch high moves east into new england. this low deepens to 29.7 
inches as it reaches the lower great lakes by sunday afternoon. 
sunday night into monday, a 30.1 inch high over the plains weakens 
to 30.0 inches as it slides south of lake superior. by tuesday, this 
high is generally south of the great lakes as a 29.5 inch low over 
hudson bay extends a 29.9 inch trough over lake superior. ridging of 
around 30.0 inches could return to the lake by wednesday evening.




lsz263-142000-
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 fri aug 14 2026

.rest of today...northeast winds 5 to 15 knots increasing to
15 to 25 knots. waves calm to 2 feet building to 1 to 3 feet. 
.tonight...east winds 15 to 25 knots diminishing to 5 to 15 knots
after midnight. waves subsiding to calm to 2 feet. 
.saturday...east winds 5 to 15 knots. a chance of showers. waves
calm to 2 feet. 
.saturday night...south winds 5 to 15 knots veering west after
midnight. showers likely and a slight chance of thunderstorms
through midnight, then a slight chance of showers after midnight.
waves calm to 2 feet. 
.sunday...northwest winds 10 to 20 knots backing west by mid
afternoon. waves calm to 2 feet. 
.sunday night...west winds 5 to 15 knots veering northwest after
midnight. waves calm to 2 feet. 
.monday...southwest winds 15 to 25 knots diminishing to 10 to
20 knots. a chance of showers. waves building to 1 to 3 feet,
then subsiding to calm to 2 feet. 
.tuesday...west winds 10 to 20 knots becoming north 5 to
15 knots. a chance of showers. waves calm to 2 feet. 

$$

fzus63 kmqt 141401
glfls 
expires:202608142000;;175918

open lake forecast for lake superior
national weather service marquette mi
1001 am edt fri aug 14 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...

30.2 high pressure settles over lake superior today. a 29.9 inch low 
over the dakotas tonight moves over the lake saturday night as the 
30.2 inch high moves east into new england. this low deepens to 29.7 
inches as it reaches the lower great lakes by sunday afternoon. 
sunday night into monday, a 30.1 inch high over the plains weakens 
to 30.0 inches as it slides south of lake superior. by tuesday, this 
high is generally south of the great lakes as a 29.5 inch low over 
hudson bay extends a 29.9 inch trough over lake superior. ridging of 
around 30.0 inches could return to the lake by wednesday evening.




lsz264-142000-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
1001 am edt fri aug 14 2026

.rest of today...northeast winds 5 to 15 knots veering east late.
waves calm to 2 feet. 
.tonight...southeast winds 5 to 15 knots. waves calm to 2 feet. 
.saturday...southeast winds 5 to 15 knots backing east in the
afternoon, then increasing to 10 to 20 knots late. a slight
chance of showers. waves calm to 2 feet. 
.saturday night...southeast winds 10 to 20 knots becoming west
5 to 15 knots after midnight. showers likely and a slight chance
of thunderstorms through midnight, then a slight chance of
showers after midnight. waves building to 1 to 3 feet, then
subsiding to calm to 2 feet. 
.sunday...northwest winds 10 to 20 knots backing west by mid
afternoon. waves calm to 2 feet. 
.sunday night...west winds 5 to 15 knots. waves calm to 2 feet. 
.monday...southwest winds 10 to 20 knots. a chance of showers.
waves calm to 2 feet. 
.tuesday...west winds 10 to 20 knots becoming north 5 to
15 knots. a chance of showers. waves calm to 2 feet. 

$$

fzus63 kmqt 141401
glfls 
expires:202608142000;;175919

open lake forecast for lake superior
national weather service marquette mi
1001 am edt fri aug 14 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...

30.2 high pressure settles over lake superior today. a 29.9 inch low 
over the dakotas tonight moves over the lake saturday night as the 
30.2 inch high moves east into new england. this low deepens to 29.7 
inches as it reaches the lower great lakes by sunday afternoon. 
sunday night into monday, a 30.1 inch high over the plains weakens 
to 30.0 inches as it slides south of lake superior. by tuesday, this 
high is generally south of the great lakes as a 29.5 inch low over 
hudson bay extends a 29.9 inch trough over lake superior. ridging of 
around 30.0 inches could return to the lake by wednesday evening.




lsz265-142000-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
1001 am edt fri aug 14 2026

.rest of today...northeast winds 10 to 20 knots becoming east
5 to 15 knots late. waves calm to 2 feet. 
.tonight...southeast winds 5 to 15 knots. waves calm to 2 feet. 
.saturday...southeast winds 5 to 15 knots becoming east 10 to
20 knots in the afternoon, then becoming southeast 20 to 30 knots
late. a chance of showers by mid afternoon. waves building to
1 to 3 feet. 
.saturday night...south winds 15 to 25 knots becoming west 10 to
20 knots after midnight. showers likely through midnight. a
slight chance of thunderstorms. a chance of showers after
midnight. waves subsiding to calm to 2 feet. 
.sunday...northwest winds 15 to 25 knots. waves building to 3 to
5 feet occasionally to 7 feet, then subsiding to 1 to 3 feet. 
.sunday night...northwest winds 10 to 20 knots backing west after
midnight. waves subsiding to calm to 2 feet. 
.monday...west winds 5 to 15 knots becoming south 10 to 20 knots.
waves calm to 2 feet. 
.tuesday...west winds 15 to 25 knots becoming north 10 to
20 knots. a chance of showers. waves calm to 2 feet. 

$$

fzus63 kmqt 141401
glfls 
expires:202608142000;;175920

open lake forecast for lake superior
national weather service marquette mi
1001 am edt fri aug 14 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...

30.2 high pressure settles over lake superior today. a 29.9 inch low 
over the dakotas tonight moves over the lake saturday night as the 
30.2 inch high moves east into new england. this low deepens to 29.7 
inches as it reaches the lower great lakes by sunday afternoon. 
sunday night into monday, a 30.1 inch high over the plains weakens 
to 30.0 inches as it slides south of lake superior. by tuesday, this 
high is generally south of the great lakes as a 29.5 inch low over 
hudson bay extends a 29.9 inch trough over lake superior. ridging of 
around 30.0 inches could return to the lake by wednesday evening.




lsz266-142000-
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 fri aug 14 2026

.rest of today...northeast winds 5 to 15 knots backing north
late. waves calm to 2 feet. 
.tonight...north winds 5 to 15 knots veering east after midnight.
waves calm to 2 feet. 
.saturday...southeast winds 5 to 15 knots becoming east 10 to
20 knots in the afternoon, then veering southeast late. a slight
chance of showers by mid afternoon. waves building to 1 to
3 feet. 
.saturday night...southeast winds 10 to 20 knots veering
southwest after midnight. showers and a slight chance of
thunderstorms. waves 1 to 3 feet. 
.sunday...northwest winds 20 to 30 knots. a slight chance of
showers through early afternoon. waves building to 3 to 6 feet
occasionally to 8 feet, then subsiding to 2 to 4 feet. 
.sunday night...northwest winds 10 to 20 knots. waves subsiding
to calm to 2 feet. 
.monday...west winds 5 to 15 knots becoming south 10 to 20 knots.
waves calm to 2 feet. 
.tuesday...west winds 10 to 20 knots becoming north 5 to
15 knots. a chance of showers. waves calm to 2 feet. 

$$

fzus63 kmqt 141401
glfls 
expires:202608142000;;175921

open lake forecast for lake superior
national weather service marquette mi
1001 am edt fri aug 14 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...

30.2 high pressure settles over lake superior today. a 29.9 inch low 
over the dakotas tonight moves over the lake saturday night as the 
30.2 inch high moves east into new england. this low deepens to 29.7 
inches as it reaches the lower great lakes by sunday afternoon. 
sunday night into monday, a 30.1 inch high over the plains weakens 
to 30.0 inches as it slides south of lake superior. by tuesday, this 
high is generally south of the great lakes as a 29.5 inch low over 
hudson bay extends a 29.9 inch trough over lake superior. ridging of 
around 30.0 inches could return to the lake by wednesday evening.




lsz267-142000-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
1001 am edt fri aug 14 2026

.rest of today...north winds 5 to 15 knots becoming northwest
10 to 20 knots late. waves calm to 2 feet. 
.tonight...north winds 5 to 15 knots veering east late. waves
calm to 2 feet. 
.saturday...southeast winds 10 to 20 knots backing east in the
afternoon. waves calm to 2 feet. 
.saturday night...southeast winds 15 to 25 knots becoming south
10 to 20 knots after midnight. a chance of showers through
midnight, then showers likely and a slight chance of
thunderstorms after midnight. waves building to 1 to 3 feet. 
.sunday...west winds 10 to 20 knots becoming northwest 15 to
25 knots by mid afternoon. a slight chance of showers through
early afternoon. waves subsiding to calm to 2 feet, then building
to 2 to 4 feet. 
.sunday night...northwest winds 10 to 20 knots. waves subsiding
to calm to 2 feet. 
.monday...west winds 5 to 15 knots backing south. waves calm to
2 feet. 
.tuesday...west winds 10 to 20 knots veering north. a chance of
showers. waves building to 1 to 3 feet, then subsiding to calm to
2 feet. 

$$