fzus61 kbuf 191502
glflo 
expires:202511192200;;141270

open lake forecast for lake ontario
national weather service buffalo ny
1002 am est wed nov 19 2025

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 30.3 inch high centered over the central great lakes 
will build over the lower great lakes wednesday, then into new 
england thursday. a 29.5 inch surface low along the southern 
shoreline of hudson bay will swing a cold front east across the 
lower great lakes friday, followed by a 30.1 inch high building over 
the ohio valley and lower great lakes saturday. a 29.5 inch low will 
then move across northern ontario into lower hudson bay on sunday, 
while sending an attendant warm front across the lake saturday night.


loz064-065-192200-
lake ontario open waters from sodus bay to the saint lawrence
river-
1002 am est wed nov 19 2025

.this afternoon...north winds less than 10 knots becoming
northwest. waves 1 foot or less. 
.tonight...light and variable winds. waves 1 foot or less. 
.thursday...south winds 10 knots or less becoming southeast.
waves 1 foot or less. 
.thursday night...southeast winds 5 to 15 knots becoming south
15 to 20 knots. a chance of rain showers overnight. waves 1 to
3 feet. 
.friday...southwest winds 15 to 20 knots becoming northwest 10 to
15 knots. rain showers likely during the day, then a chance of
rain showers friday night. waves 3 to 5 feet subsiding to 1 to
3 feet. 
.saturday...north winds 5 to 10 knots becoming south. waves
2 feet or less. 
.sunday...south winds 5 to 15 knots becoming west. a chance of
rain showers sunday night. waves 1 to 3 feet. 

$$

fzus61 kbuf 191502
glflo 
expires:202511192200;;141269

open lake forecast for lake ontario
national weather service buffalo ny
1002 am est wed nov 19 2025

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 30.3 inch high centered over the central great lakes 
will build over the lower great lakes wednesday, then into new 
england thursday. a 29.5 inch surface low along the southern 
shoreline of hudson bay will swing a cold front east across the 
lower great lakes friday, followed by a 30.1 inch high building over 
the ohio valley and lower great lakes saturday. a 29.5 inch low will 
then move across northern ontario into lower hudson bay on sunday, 
while sending an attendant warm front across the lake saturday night.


loz063-192200-
lake ontario open waters from hamlin beach to sodus bay-
1002 am est wed nov 19 2025

.this afternoon...north winds less than 10 knots becoming
northwest. waves 1 foot or less. 
.tonight...light and variable winds. waves 1 foot or less. 
.thursday...south winds 10 knots or less becoming southeast.
waves 1 foot or less. 
.thursday night...southeast winds 5 to 15 knots becoming
southwest. a chance of showers overnight. waves 1 to 3 feet. 
.friday...southwest winds 15 to 20 knots becoming northwest 10 to
15 knots. a chance of showers during the day. waves 2 to 4 feet. 
.saturday...north winds 5 to 10 knots becoming south. waves 1 to
2 feet. 
.sunday...southwest winds 10 to 15 knots becoming west. waves
1 to 3 feet. 

$$

fzus61 kbuf 191502
glflo 
expires:202511192200;;141268

open lake forecast for lake ontario
national weather service buffalo ny
1002 am est wed nov 19 2025

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 30.3 inch high centered over the central great lakes 
will build over the lower great lakes wednesday, then into new 
england thursday. a 29.5 inch surface low along the southern 
shoreline of hudson bay will swing a cold front east across the 
lower great lakes friday, followed by a 30.1 inch high building over 
the ohio valley and lower great lakes saturday. a 29.5 inch low will 
then move across northern ontario into lower hudson bay on sunday, 
while sending an attendant warm front across the lake saturday night.


loz062-192200-
lake ontario open waters from the niagara river to hamlin beach-
1002 am est wed nov 19 2025

.this afternoon...northeast winds 5 to 10 knots becoming light and
variable. waves 1 foot or less. 
.tonight...light and variable winds. waves 1 foot or less. 
.thursday...southeast winds less than 10 knots. waves 1 foot or
less. 
.thursday night...south winds 10 knots or less becoming southwest
10 to 15 knots. a chance of showers overnight. waves 2 feet or
less. 
.friday...southwest winds 15 to 20 knots becoming northwest 5 to
15 knots. a chance of showers during the day. waves 1 to 3 feet. 
.saturday...north winds 5 to 10 knots becoming southwest. waves
1 to 2 feet. 
.sunday...southwest winds 10 to 15 knots becoming west. waves
1 to 3 feet. 

$$

fzus61 kcle 191934
glfle 
expires:202511200315;;152760

open lake forecast for lake erie
national weather service cleveland oh
234 pm est wed nov 19 2025

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 30.10 inches centered over the great lakes region
will drift east towards the east coast by thursday. a cold front 
will move east across lake erie friday with high pressure 30.00 
inches building over the great lakes friday night into the 
weekend. another cold front is expected on monday.


lez061-168-169-200315-
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-
234 pm est wed nov 19 2025

.tonight...light and variable winds. waves 1 foot or less. 
.thursday...southeast winds less than 10 knots. waves 1 foot or
less. 
.thursday night...southwest winds 10 knots or less increasing to
10 to 15 knots. waves 2 feet or less. 
.friday...southwest winds 10 to 15 knots becoming west. a chance
of rain in the morning. waves 1 to 2 feet. 
.friday night...west winds around 10 knots becoming north. waves
1 to 2 feet. 
.saturday...north winds 10 knots or less becoming southwest.
waves 2 feet or less. 
.sunday...southwest winds 10 to 15 knots becoming west. waves
1 to 3 feet. 
.monday...west winds 15 to 20 knots becoming south 10 to
15 knots. waves 2 to 4 feet subsiding to 1 to 2 feet. 

$$

fzus61 kcle 191934
glfle 
expires:202511200315;;152758

open lake forecast for lake erie
national weather service cleveland oh
234 pm est wed nov 19 2025

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 30.10 inches centered over the great lakes region
will drift east towards the east coast by thursday. a cold front 
will move east across lake erie friday with high pressure 30.00 
inches building over the great lakes friday night into the 
weekend. another cold front is expected on monday.


lez162>164-200315-
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-
234 pm est wed nov 19 2025

.tonight...east winds 10 knots or less becoming southeast. waves
1 foot or less. 
.thursday...southeast winds less than 10 knots becoming south.
waves 1 foot or less. 
.thursday night...south winds 5 to 10 knots becoming southwest.
waves 1 foot or less. 
.friday...southwest winds 10 knots or less becoming west. waves
1 foot or less. 
.friday night...northwest winds 10 knots or less becoming north
10 to 15 knots. a chance of rain in the evening. waves 2 feet or
less. 
.saturday...north winds 5 to 15 knots becoming south 10 knots or
less. waves 2 feet or less. 
.sunday...southwest winds around 10 knots becoming west. waves
2 feet or less. 
.monday...west winds 5 to 10 knots becoming south. waves 2 feet
or less. 

$$

fzus61 kcle 191934
glfle 
expires:202511200315;;152759

open lake forecast for lake erie
national weather service cleveland oh
234 pm est wed nov 19 2025

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 30.10 inches centered over the great lakes region
will drift east towards the east coast by thursday. a cold front 
will move east across lake erie friday with high pressure 30.00 
inches building over the great lakes friday night into the 
weekend. another cold front is expected on monday.


lez165>167-200315-
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-
234 pm est wed nov 19 2025

.tonight...northeast winds less than 10 knots becoming southeast.
waves 1 foot or less. 
.thursday...southeast winds less than 10 knots becoming
southwest. waves 1 foot or less. 
.thursday night...south winds 5 to 15 knots becoming southwest.
waves 2 feet or less. 
.friday...southwest winds 5 to 10 knots becoming west. a chance
of rain in the afternoon. waves 2 feet or less. 
.friday night...northwest winds 5 to 15 knots becoming north. a
chance of rain in the evening. waves 1 to 3 feet. 
.saturday...north winds 5 to 15 knots becoming southwest 10 knots
or less. waves 1 to 3 feet subsiding to 1 foot or less. 
.sunday...southwest winds 10 to 15 knots becoming west. waves
1 to 3 feet building to 2 to 4 feet, then subsiding to 1 to
3 feet. 
.monday...west winds 10 to 15 knots becoming south. waves 1 to
3 feet. 

$$

fzus63 kdtx 191529
glfsc 
expires:202511192330;;142352

lake st clair forecast
national weather service detroit/pontiac mi
1029 am est wed nov 19 2025

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, 30.20 inches, over the central great
lakes today will ensure dry conditions and light winds. a weak
cold front tracks across the region thursday night, supporting
organized southwest flow and increasing rain chances.


lcz460-192330-
lake st clair-
1029 am est wed nov 19 2025

.rest of today...northeast winds 5 to 10 knots in the late morning
and early afternoon becoming light and variable. mostly sunny in the
late morning and early afternoon becoming mostly cloudy. waves 2
feet or less.
.tonight...light and variable winds. mostly cloudy this evening
becoming partly cloudy. waves nearly calm.
.thursday...light and variable winds becoming south 5 to 10 knots in
the late morning and afternoon. partly sunny. waves 2 feet or less.
.thursday night...south winds 5 to 10 knots becoming southwest 10 to
15 knots in the late evening and overnight. mostly cloudy. a chance
of light rain after midnight. waves 2 feet or less.
.friday...west winds 5 to 10 knots veering to the north in the
evening. mostly cloudy in the morning becoming partly cloudy. waves
2 feet or less.
.saturday...southeast winds 5 to 10 knots. partly cloudy. waves 2
feet or less.
.sunday...west winds 10 to 15 knots. partly cloudy. waves 2 feet or
less.

$$

fzus63 kdtx 191435
glflh 
expires:202511192245;;140229

open lake forecast for lake huron
national weather service detroit/pontiac mi
issued by national weather service grand rapids mi
935 am est wed nov 19 2025

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 over lake huron today, 30.25 inches, 
is ensuring dry conditions and light winds. as high pressure moves
east, winds will become more uniformly from the south-southwest
thursday morning. a weak cold front tracks across the region 
thursday night, supporting increasing rain chances.


lhz361-192245-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
935 am est wed nov 19 2025

.rest of today...west winds 5 to 10 knots early in the morning
becoming light and variable. waves 2 feet or less. 
.tonight...light and variable winds becoming southwest 5 to
10 knots in the late evening and overnight. waves 2 feet or less.
.thursday...south winds 5 to 10 knots increasing to 10 to
15 knots early in the afternoon. a chance of rain in the
afternoon. waves 1 to 3 feet. 
.thursday night...southwest winds 10 to 15 knots increasing to
15 to 20 knots in the late evening and early morning...then
becoming west 10 to 15 knots after midnight. rain likely. waves
2 to 4 feet. 
.friday...west winds 10 to 15 knots increasing to 15 to 20 knots
late in the morning...then becoming northwest 10 to 15 knots late
in the afternoon decreasing to 5 to 10 knots late in the evening.
waves 3 to 5 feet subsiding to 1 to 3 feet late in the evening. 
.saturday...northwest winds 5 to 10 knots backing to the south.
waves 2 feet or less. 
.sunday...southwest winds 10 to 15 knots veering to the west
early in the evening...then decreasing to 5 to 10 knots in the
late evening and early morning. waves 1 to 3 feet. 


$$

fzus63 kdtx 191435
glflh 
expires:202511192245;;140230

open lake forecast for lake huron
national weather service detroit/pontiac mi
issued by national weather service grand rapids mi
935 am est wed nov 19 2025

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 over lake huron today, 30.25 inches, 
is ensuring dry conditions and light winds. as high pressure moves
east, winds will become more uniformly from the south-southwest
thursday morning. a weak cold front tracks across the region 
thursday night, supporting increasing rain chances.


lhz362-363-192245-
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 est wed nov 19 2025

.rest of today...north winds 5 to 10 knots early in the morning
becoming light and variable. waves 2 feet or less. 
.tonight...light and variable winds becoming southwest 5 to
10 knots in the late evening and overnight. waves 2 feet or less.
.thursday...southwest winds 5 to 10 knots becoming south 15 to
20 knots. waves 1 to 3 feet building to 2 to 4 feet in the late
morning and afternoon. 
.thursday night...southwest winds 15 to 20 knots. a chance of
rain in the evening. waves 3 to 5 feet. 
.friday...west winds 15 to 20 knots becoming northwest 10 to
15 knots. waves 3 to 5 feet. 
.saturday...north winds 5 to 10 knots backing to the south early
in the evening...then increasing to 10 to 15 knots in the late
evening and early morning. waves 1 to 3 feet. 
.sunday...southwest winds 10 to 15 knots veering to the west in
the late evening and early morning. waves 2 to 4 feet. 


$$

fzus63 kdtx 191435
glflh 
expires:202511192245;;140231

open lake forecast for lake huron
national weather service detroit/pontiac mi
issued by national weather service grand rapids mi
935 am est wed nov 19 2025

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 over lake huron today, 30.25 inches, 
is ensuring dry conditions and light winds. as high pressure moves
east, winds will become more uniformly from the south-southwest
thursday morning. a weak cold front tracks across the region 
thursday night, supporting increasing rain chances.


lhz462>464-192245-
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 est wed nov 19 2025

.rest of today...north winds 5 to 10 knots early in the morning
becoming light and variable. waves 2 feet or less. 
.tonight...light and variable winds becoming south 5 to 10 knots
after midnight. waves 2 feet or less. 
.thursday...south winds 5 to 10 knots increasing to 10 to
15 knots in the late morning and afternoon. waves 1 to 3 feet. 
.thursday night...southwest winds 10 to 15 knots. a chance of
rain. waves 2 to 4 feet. 
.friday...west winds 10 to 15 knots veering to the northwest late
in the evening. waves 2 to 4 feet. 
.saturday...north winds 5 to 10 knots backing to the south in the
late evening and early morning. waves 1 to 3 feet. 
.sunday...southwest winds 10 to 15 knots veering to the west in
the late evening and early morning. waves 1 to 3 feet. 


$$

fzus63 kmkx 191445
glflm 
expires:202511192215;;140447

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
845 am cst wed nov 19 2025

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 of 30.3 inches moves eastward across the central 
portion of the lake this morning, bringing a period of light and 
variable winds. by this afternoon/evening, south to southeast 
winds are expected behind the exiting high and ahead of a low 
pressure system of 29.6 inches developing in manitoba. this low 
will deepen to near 29.5 inches over the hudson bay by thursday 
afternoon. the low development and progression will result in a 
southwest wind shift across lake michigan, with winds becoming 
gusty late thursday morning and afternoon. highest gusts are 
expected over the northern third of the waters, where 20-25 kt 
readings are currently forecast. gales are not expected, though 
trends will continue to be monitored. a cold front will cross the 
waters thursday night, resulting in northwest winds friday into 
saturday morning.


lmz080-669-671-673-675-777-779-870-872-874-876-878-192215-
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-
845 am cst wed nov 19 2025

sheboygan wi to pentwater mi south...

.rest of today...east winds 10 to 15 kt becoming southeast less
than 10 kt. waves 1 to 3 ft. 
.tonight...southeast winds 5 to 10 kt becoming southwest. waves
1 to 2 ft. 
.thursday...southwest winds 10 to 15 kt increasing to 10 to
20 kt. waves 2 to 4 ft. 
.thursday night...west winds 10 to 20 kt becoming northwest.
chance of rain in the evening. waves 2 to 4 ft. 
.friday...northwest winds 10 to 20 kt. waves 2 to 4 ft. 
.friday night...north winds 10 to 15 kt becoming northeast. waves
1 to 3 ft. 
.saturday...southeast winds 10 to 15 kt becoming south. waves
1 to 3 ft. 
.sunday...west winds 10 to 20 kt. waves 3 to 5 ft.  

$$

fzus63 kmkx 191445
glflm 
expires:202511192215;;140446

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
845 am cst wed nov 19 2025

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 of 30.3 inches moves eastward across the central 
portion of the lake this morning, bringing a period of light and 
variable winds. by this afternoon/evening, south to southeast 
winds are expected behind the exiting high and ahead of a low 
pressure system of 29.6 inches developing in manitoba. this low 
will deepen to near 29.5 inches over the hudson bay by thursday 
afternoon. the low development and progression will result in a 
southwest wind shift across lake michigan, with winds becoming 
gusty late thursday morning and afternoon. highest gusts are 
expected over the northern third of the waters, where 20-25 kt 
readings are currently forecast. gales are not expected, though 
trends will continue to be monitored. a cold front will cross the 
waters thursday night, resulting in northwest winds friday into 
saturday morning.


lmz261-362-364-366-563-565-567-868-192215-
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-
845 am cst wed nov 19 2025

sheboygan wi to pentwater mi north...

.rest of today...southwest winds 5 to 10 kt increasing to 10 to
15 kt. waves 1 to 2 ft. 
.tonight...southwest winds 10 to 15 kt increasing to 10 to 20 kt.
waves 2 to 4 ft. 
.thursday...southwest winds 10 to 20 kt increasing to 15 to
25 kt. waves 3 to 5 ft. 
.thursday night...west winds 15 to 25 kt becoming northwest 10 to
20 kt. waves 3 to 5 ft. 
.friday...northwest winds 10 to 20 kt. waves 1 to 3 ft. 
.friday night...northwest winds 10 to 15 kt diminishing to 5 to
10 kt. waves 1 to 3 ft. 
.saturday...southwest winds 10 to 20 kt. waves 1 to 3 ft. 
.sunday...west winds 10 to 20 kt. waves 2 to 4 ft.  

$$

fzus63 kmqt 191501
glfls 
expires:202511192100;;141139

open lake forecast for lake superior
national weather service marquette mi
1001 am est wed nov 19 2025

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 30.2 inch ridge over lake superior this morning weakens to 30.0 
inches through this evening as 30.3 inch high pressure over the 
lower great lakes shifts east into new england. a 29.8 inch trough 
moves over the lake on thursday as a developing 29.7 inch low over 
northern manitoba moves into hudson bay. a 30.1 inch ridge of high 
pressure over the northern plains and upper midwest on friday moves 
over the great lakes on saturday. another 29.8 inch trough then 
moves over lake superior saturday night into sunday before 30.1 inch 
high pressure rebuilds over the great lakes early next week.



lsz266-192100-
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 est wed nov 19 2025

.rest of today...southwest winds 5 to 15 knots increasing to
10 to 20 knots by mid afternoon. waves calm to 2 feet. 
.tonight...southwest winds 10 to 20 knots increasing to 15 to
25 knots by midnight. a slight chance of rain showers. waves
building to 3 to 5 feet occasionally to 7 feet. 
.thursday...southwest winds 15 to 25 knots increasing to 20 to
30 knots by late morning, then becoming west 15 to 25 knots by
mid afternoon. rain showers. waves building to 3 to 6 feet
occasionally to 8 feet. 
.thursday night...west winds 15 to 25 knots increasing to 20 to
30 knots after midnight. a chance of rain showers in the evening.
waves building to 4 to 7 feet occasionally to 9 feet. 
.friday...northwest winds 20 to 30 knots diminishing to 15 to
25 knots in the afternoon. a chance of rain showers, possibly
mixed with snow. waves subsiding to 3 to 6 feet occasionally to
8 feet. 
.friday night...northwest winds 10 to 20 knots becoming west 5 to
15 knots after midnight. waves subsiding to calm to 2 feet. 
.saturday...south winds 10 to 20 knots becoming southwest 15 to
25 knots. a chance of rain showers. waves building to 2 to
4 feet. 
.sunday...west winds 15 to 25 knots diminishing to 10 to
20 knots. a chance of rain showers. waves 2 to 4 feet. 

$$

fzus63 kmqt 191501
glfls 
expires:202511192100;;141140

open lake forecast for lake superior
national weather service marquette mi
1001 am est wed nov 19 2025

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 30.2 inch ridge over lake superior this morning weakens to 30.0 
inches through this evening as 30.3 inch high pressure over the 
lower great lakes shifts east into new england. a 29.8 inch trough 
moves over the lake on thursday as a developing 29.7 inch low over 
northern manitoba moves into hudson bay. a 30.1 inch ridge of high 
pressure over the northern plains and upper midwest on friday moves 
over the great lakes on saturday. another 29.8 inch trough then 
moves over lake superior saturday night into sunday before 30.1 inch 
high pressure rebuilds over the great lakes early next week.



lsz267-192100-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
1001 am est wed nov 19 2025

.rest of today...southwest winds 10 to 20 knots. waves calm to
2 feet. 
.tonight...southwest winds 10 to 20 knots increasing to 15 to
25 knots by midnight. a slight chance of rain showers after
midnight. waves building to 3 to 5 feet occasionally to 7 feet. 
.thursday...southwest winds 15 to 25 knots increasing to 20 to
30 knots. rain showers. waves building to 3 to 6 feet
occasionally to 8 feet. 
.thursday night...west winds 20 to 30 knots. rain showers likely
in the evening, then a slight chance of rain showers after
midnight. waves subsiding to 3 to 5 feet occasionally to 7 feet,
then building to 4 to 7 feet occasionally to 9 feet. 
.friday...west winds 20 to 30 knots veering northwest in the
afternoon. a chance of rain showers. a slight chance of snow
showers in the afternoon. waves building to 5 to 8 feet
occasionally to 10 feet, then subsiding to 3 to 6 feet
occasionally to 8 feet. 
.friday night...northwest winds 10 to 20 knots. waves subsiding
to calm to 2 feet. 
.saturday...south winds 10 to 20 knots becoming southwest 15 to
25 knots. a chance of rain showers. waves building to 2 to
4 feet. 
.sunday...west winds 15 to 25 knots. a chance of rain showers.
waves 2 to 4 feet. 

$$

fzus63 kmqt 191501
glfls 
expires:202511192100;;141137

open lake forecast for lake superior
national weather service marquette mi
1001 am est wed nov 19 2025

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 30.2 inch ridge over lake superior this morning weakens to 30.0 
inches through this evening as 30.3 inch high pressure over the 
lower great lakes shifts east into new england. a 29.8 inch trough 
moves over the lake on thursday as a developing 29.7 inch low over 
northern manitoba moves into hudson bay. a 30.1 inch ridge of high 
pressure over the northern plains and upper midwest on friday moves 
over the great lakes on saturday. another 29.8 inch trough then 
moves over lake superior saturday night into sunday before 30.1 inch 
high pressure rebuilds over the great lakes early next week.



lsz264-192100-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
1001 am est wed nov 19 2025

.rest of today...southwest winds 5 to 15 knots increasing to
10 to 20 knots by mid afternoon. a slight chance of rain showers
in the afternoon. waves calm to 2 feet building to 1 to 3 feet. 
.tonight...southwest winds 10 to 20 knots increasing to 15 to
25 knots by midnight. a chance of rain showers. waves building to
3 to 5 feet occasionally to 7 feet. 
.thursday...southwest winds 15 to 25 knots veering west. rain
showers in the morning, then a chance of rain showers in the
afternoon. waves building to 3 to 6 feet occasionally to 8 feet. 
.thursday night...west winds 15 to 25 knots. waves subsiding to
3 to 6 feet occasionally to 8 feet. 
.friday...northwest winds 15 to 25 knots diminishing to 10 to
20 knots in the afternoon. waves subsiding to 1 to 3 feet. 
.friday night...northwest winds 5 to 15 knots backing southwest
after midnight. waves subsiding to calm to 2 feet. 
.saturday...southwest winds 10 to 20 knots veering west. waves
building to 2 to 4 feet. 
.sunday...west winds 15 to 25 knots diminishing to 10 to
20 knots. waves subsiding to 1 to 3 feet. 

$$

fzus63 kmqt 191501
glfls 
expires:202511192100;;141135

open lake forecast for lake superior
national weather service marquette mi
1001 am est wed nov 19 2025

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 30.2 inch ridge over lake superior this morning weakens to 30.0 
inches through this evening as 30.3 inch high pressure over the 
lower great lakes shifts east into new england. a 29.8 inch trough 
moves over the lake on thursday as a developing 29.7 inch low over 
northern manitoba moves into hudson bay. a 30.1 inch ridge of high 
pressure over the northern plains and upper midwest on friday moves 
over the great lakes on saturday. another 29.8 inch trough then 
moves over lake superior saturday night into sunday before 30.1 inch 
high pressure rebuilds over the great lakes early next week.



lsz162-192100-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
1001 am est wed nov 19 2025 /901 am cst wed nov 19 2025/

.rest of today...southwest winds 10 to 20 knots. a slight chance
of rain showers in the afternoon. waves calm to 2 feet building
to 1 to 3 feet. 
.tonight...southwest winds 10 to 20 knots increasing to 15 to
25 knots by midnight, then diminishing to 10 to 20 knots late. a
chance of rain showers in the evening, then rain showers likely
after midnight. waves building to 3 to 5 feet occasionally to
7 feet. 
.thursday...southwest winds 15 to 25 knots veering west. a chance
of rain showers in the morning. waves subsiding to 1 to 3 feet. 
.thursday night...west winds 15 to 25 knots diminishing to 10 to
20 knots after midnight. waves building to 2 to 4 feet, then
subsiding to 1 to 3 feet. 
.friday...west winds 10 to 20 knots diminishing to 5 to 15 knots
in the afternoon. waves subsiding to calm to 2 feet. 
.friday night...northwest winds 5 to 15 knots backing south after
midnight. waves calm to 2 feet. 
.saturday...southwest winds 10 to 20 knots veering west. waves
calm to 2 feet. 
.sunday...west winds 10 to 20 knots. waves calm to 2 feet. 

$$

fzus63 kmqt 191501
glfls 
expires:202511192100;;141136

open lake forecast for lake superior
national weather service marquette mi
1001 am est wed nov 19 2025

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 30.2 inch ridge over lake superior this morning weakens to 30.0 
inches through this evening as 30.3 inch high pressure over the 
lower great lakes shifts east into new england. a 29.8 inch trough 
moves over the lake on thursday as a developing 29.7 inch low over 
northern manitoba moves into hudson bay. a 30.1 inch ridge of high 
pressure over the northern plains and upper midwest on friday moves 
over the great lakes on saturday. another 29.8 inch trough then 
moves over lake superior saturday night into sunday before 30.1 inch 
high pressure rebuilds over the great lakes early next week.



lsz263-192100-
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 est wed nov 19 2025

.rest of today...southwest winds 5 to 15 knots increasing to
10 to 20 knots. a slight chance of rain showers in the afternoon.
waves calm to 2 feet building to 1 to 3 feet. 
.tonight...southwest winds 10 to 20 knots increasing to 15 to
25 knots by midnight. a chance of rain showers. waves building to
3 to 5 feet occasionally to 7 feet. 
.thursday...southwest winds 15 to 25 knots veering west. rain
showers likely in the morning, then a slight chance of rain
showers in the afternoon. waves building to 3 to 6 feet
occasionally to 8 feet. 
.thursday night...west winds 15 to 25 knots. waves subsiding to
2 to 4 feet, then building to 3 to 6 feet occasionally to 8 feet.
.friday...northwest winds 15 to 25 knots diminishing to 10 to
20 knots in the afternoon. waves subsiding to calm to 2 feet. 
.friday night...northwest winds 5 to 15 knots backing southwest
after midnight. waves calm to 2 feet. 
.saturday...southwest winds 10 to 20 knots veering west. waves
building to 1 to 3 feet. 
.sunday...west winds 15 to 25 knots diminishing to 10 to
20 knots. waves building to 2 to 4 feet, then subsiding to calm
to 2 feet. 

$$

fzus63 kmqt 191501
glfls 
expires:202511192100;;141138

open lake forecast for lake superior
national weather service marquette mi
1001 am est wed nov 19 2025

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 30.2 inch ridge over lake superior this morning weakens to 30.0 
inches through this evening as 30.3 inch high pressure over the 
lower great lakes shifts east into new england. a 29.8 inch trough 
moves over the lake on thursday as a developing 29.7 inch low over 
northern manitoba moves into hudson bay. a 30.1 inch ridge of high 
pressure over the northern plains and upper midwest on friday moves 
over the great lakes on saturday. another 29.8 inch trough then 
moves over lake superior saturday night into sunday before 30.1 inch 
high pressure rebuilds over the great lakes early next week.



lsz265-192100-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
1001 am est wed nov 19 2025

.rest of today...southwest winds 5 to 15 knots increasing to
10 to 20 knots by mid afternoon. waves calm to 2 feet. 
.tonight...southwest winds 10 to 20 knots increasing to 15 to
25 knots by midnight. a slight chance of rain showers. waves
building to 1 to 3 feet. 
.thursday...southwest winds 15 to 25 knots becoming west 20 to
30 knots by mid afternoon. rain showers likely. waves subsiding
to calm to 2 feet, then building to 2 to 4 feet. 
.thursday night...west winds 20 to 30 knots. a slight chance of
rain showers in the evening. waves building to 3 to 5 feet
occasionally to 7 feet, then subsiding to 2 to 4 feet. 
.friday...west winds 20 to 30 knots becoming northwest 15 to
25 knots in the afternoon. waves subsiding to calm to 2 feet. 
.friday night...northwest winds 10 to 20 knots becoming west 5 to
15 knots after midnight. waves calm to 2 feet. 
.saturday...southwest winds 10 to 20 knots becoming west 15 to
25 knots. waves calm to 2 feet. 
.sunday...west winds 15 to 25 knots. waves calm to 2 feet. 

$$