fzus61 kbuf 280202
glflo 
expires:202606280900;;024928

open lake forecast for lake ontario
national weather service buffalo ny
1002 pm edt sat jun 27 2026

for waters beyond five nautical miles of shore on lake ontario

waves are the significant wave height - the average of the highest
1/3 of the wave spectrum. occasional wave height is the average of
the highest 1/10 of the wave spectrum.

.synopsis...a 30.1 inch high will build into the upper great lakes 
tonight before drifting east to quebec and new england by monday, 
then east of the new england coast by tuesday. another broad 30.1 
inch high will build into the ohio valley and mid atlantic by 
wednesday, where it will remain through at least thursday.


loz063>065-280900-
lake ontario open waters from hamlin beach to the saint lawrence
river-
1002 pm edt sat jun 27 2026

.overnight...northeast winds less than 10 knots becoming
north. waves 1 foot or less. 
.sunday...north winds 10 knots or less. waves 1 foot or less. 
.sunday night...northwest winds 5 to 10 knots becoming light and
variable. waves 1 foot or less. 
.monday...light and variable winds becoming northeast 5 to
10 knots. waves 1 foot or less. 
.monday night...east winds 5 to 10 knots becoming south. a chance
of showers overnight. waves 1 foot or less. 
.tuesday...south winds 5 to 15 knots becoming southwest. a chance
of showers and thunderstorms. waves 2 feet or less. 
.wednesday...southwest winds 10 to 15 knots becoming west. waves
1 to 3 feet. 
.thursday...west winds 5 to 10 knots. a chance of showers
thursday night. waves 1 to 2 feet. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kbuf 280202
glflo 
expires:202606280900;;024927

open lake forecast for lake ontario
national weather service buffalo ny
1002 pm edt sat jun 27 2026

for waters beyond five nautical miles of shore on lake ontario

waves are the significant wave height - the average of the highest
1/3 of the wave spectrum. occasional wave height is the average of
the highest 1/10 of the wave spectrum.

.synopsis...a 30.1 inch high will build into the upper great lakes 
tonight before drifting east to quebec and new england by monday, 
then east of the new england coast by tuesday. another broad 30.1 
inch high will build into the ohio valley and mid atlantic by 
wednesday, where it will remain through at least thursday.


loz062-280900-
lake ontario open waters from the niagara river to hamlin beach-
1002 pm edt sat jun 27 2026

.overnight...east winds less than 10 knots. waves 1 foot or
less. 
.sunday...light and variable winds becoming east 5 to 10 knots.
waves 1 foot or less. 
.sunday night...northeast winds 10 knots or less becoming east.
waves 1 foot or less. 
.monday...east winds 10 knots or less. waves 2 feet or less. 
.monday night...east winds 10 knots or less becoming south. a
chance of showers overnight. waves 2 feet or less. 
.tuesday...southwest winds 10 to 15 knots. a chance of showers
during the day. waves 1 foot or less building to 1 to 3 feet. 
.wednesday...southwest winds 10 to 15 knots. waves 1 to 3 feet. 
.thursday...west winds 5 to 15 knots becoming southwest. waves
1 to 2 feet. 

$$

fzus61 kcle 280112
glfle 
expires:202606280815;;024124

open lake forecast for lake erie
national weather service cleveland oh
912 pm edt sat jun 27 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 30.10 builds in from the north tonight. this ridge
will influence the region through late monday before a warm front
lifts north across the lake. high pressure 30.00 builds in across
the region through the middle of the week.


lez061-169-280815-
ripley to buffalo ny extending from 5nm off shoreline to us-
canadian border-
conneaut oh to ripley ny beyond 5 nm off shoreline to us-
canadian border-
912 pm edt sat jun 27 2026

.overnight...northeast winds 5 to 10 knots. waves 1 foot or
less. 
.sunday...northeast winds 5 to 10 knots. waves 2 feet or less. 
.sunday night...northeast winds 10 knots or less becoming east.
waves 2 feet or less. 
.monday...east winds less than 10 knots becoming northeast. waves
1 foot or less. 
.monday night...east winds 5 to 10 knots becoming south. waves
2 feet or less. 
.tuesday...southwest winds 5 to 10 knots. waves 1 to 2 feet. 
.wednesday...southwest winds 5 to 15 knots. waves 1 to 2 feet. 
.thursday...southwest winds 10 knots or less. a chance of showers
and thunderstorms thursday night. waves 1 foot or less. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 280112
glfle 
expires:202606280815;;024122

open lake forecast for lake erie
national weather service cleveland oh
912 pm edt sat jun 27 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 30.10 builds in from the north tonight. this ridge
will influence the region through late monday before a warm front
lifts north across the lake. high pressure 30.00 builds in across
the region through the middle of the week.


lez162>164-280815-
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-
912 pm edt sat jun 27 2026

.overnight...east winds 5 to 10 knots becoming northeast.
waves 2 feet or less. 
.sunday...northeast winds 5 to 10 knots becoming east. waves
2 feet or less. 
.sunday night...east winds 5 to 10 knots. waves 2 feet or less. 
.monday...southeast winds 10 knots or less. waves 1 foot or less.
.monday night...southeast winds 5 to 10 knots becoming southwest.
waves 1 foot or less. 
.tuesday...southwest winds 5 to 10 knots. waves 1 to 2 feet. 
.wednesday...southwest winds 5 to 10 knots. waves 1 foot or less.
.thursday...southwest winds 5 to 10 knots becoming west. a chance
of showers thursday night. waves 1 foot or less. 

$$

fzus61 kcle 280112
glfle 
expires:202606280815;;024123

open lake forecast for lake erie
national weather service cleveland oh
912 pm edt sat jun 27 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 30.10 builds in from the north tonight. this ridge
will influence the region through late monday before a warm front
lifts north across the lake. high pressure 30.00 builds in across
the region through the middle of the week.


lez165>168-280815-
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-geneva-on-
the-lake to conneaut oh beyond 5 nm off shoreline to us-
canadian border-
912 pm edt sat jun 27 2026

.overnight...northeast winds 5 to 10 knots. waves 1 to
2 feet. 
.sunday...northeast winds 5 to 15 knots. waves 1 to 2 feet. 
.sunday night...northeast winds 5 to 10 knots becoming east.
waves 1 to 2 feet. 
.monday...southeast winds 10 knots or less becoming east. waves
1 foot or less. 
.monday night...east winds 5 to 15 knots becoming south. waves
2 feet or less. 
.tuesday...southwest winds 5 to 15 knots. waves 1 to 3 feet. 
.wednesday...southwest winds 5 to 10 knots. waves 1 to 3 feet. 
.thursday...west winds 5 to 10 knots becoming southwest. waves
1 foot or less. 

$$

fzus63 kdtx 280205
glfsc 
expires:202606281015;;025058

lake st clair forecast
national weather service detroit/pontiac mi
1005 pm edt sat jun 27 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...area of high pressure, 30.10 inches, has built across
the region and will persist through the weekend. strong low
pressure, 29.40 inches, over the northern plains, will pull a
warm front up through the region on monday.


lcz460-281015-
lake st clair-
1005 pm edt sat jun 27 2026

.rest of tonight...northeast winds 5 to 10 knots. partly cloudy.
waves 2 feet or less.
.sunday...northeast winds 5 to 10 knots veering to the southeast
late in the afternoon. partly sunny in the morning then clearing.
waves 2 feet or less.
.sunday night...east winds 5 to 10 knots. mostly clear. waves 2 feet
or less.
.monday...southeast winds 5 to 10 knots becoming south 10 to 15
knots early in the afternoon. mostly sunny. waves 2 feet or less.
.monday night...south winds 10 to 15 knots becoming southwest 5 to
10 knots after midnight. mostly clear. waves 2 feet or less.
.tuesday...southwest winds 5 to 10 knots increasing to 10 to 15
knots in the afternoon and evening. clear. waves 2 feet or less.
.wednesday...west winds 10 to 15 knots. clear. waves 2 feet or less.
.thursday...west winds 10 to 15 knots. mostly clear. waves 2 feet or
less.

$$

fzus63 kdtx 280205
glflh 
expires:202606281015;;025049

open lake forecast for lake huron
national weather service detroit/pontiac mi
1005 pm edt sat jun 27 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...area of high pressure, 30.10 inches, has built across
the region and will persist through the weekend. strong low
pressure, 29.40 inches, over the northern plains, will pull a
warm front up through the region on monday.


lhz462>464-281015-
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-
1005 pm edt sat jun 27 2026

.rest of tonight...north winds 5 to 10 knots. waves 2 feet or
less. 
.sunday...light and variable winds becoming north 5 to 10 knots
late in the afternoon. waves 2 feet or less. 
.sunday night...north winds 5 to 10 knots veering to the
southeast after midnight. waves 2 feet or less. 
.monday...southeast winds 5 to 10 knots increasing to 10 to
15 knots early in the afternoon. waves 1 to 3 feet. 
.monday night...southeast winds 10 to 15 knots becoming south
15 to 20 knots by midnight...then decreasing to 10 to 15 knots
after midnight. waves 2 to 4 feet. 
.tuesday...south winds 10 to 15 knots. waves 2 to 4 feet. 
.wednesday...southwest winds 10 to 15 knots decreasing to 5 to
10 knots. waves 1 to 3 feet. 
.thursday...southwest winds 5 to 10 knots backing to the south .
a chance of showers by midnight. waves 2 feet or less. 


$$

fzus63 kdtx 280205
glflh 
expires:202606281015;;025048

open lake forecast for lake huron
national weather service detroit/pontiac mi
1005 pm edt sat jun 27 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...area of high pressure, 30.10 inches, has built across
the region and will persist through the weekend. strong low
pressure, 29.40 inches, over the northern plains, will pull a
warm front up through the region on monday.


lhz362-363-281015-
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-
1005 pm edt sat jun 27 2026

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


$$

fzus63 kdtx 280205
glflh 
expires:202606281015;;025047

open lake forecast for lake huron
national weather service detroit/pontiac mi
1005 pm edt sat jun 27 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...area of high pressure, 30.10 inches, has built across
the region and will persist through the weekend. strong low
pressure, 29.40 inches, over the northern plains, will pull a
warm front up through the region on monday.


lhz361-281015-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
1005 pm edt sat jun 27 2026

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


$$

fzus63 kmkx 280152
glflm 
expires:202606280930;;024673

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
852 pm cdt sat jun 27 2026

for waters beyond five nautical miles of shore on lake michigan.

waves are provided as a range of significant wave heights, which
is the average of the highest 1/3 of the wave, along with the
average height of the highest 10% of the waves which will
occasionally be encountered.

.synopsis...

high pressure around 30.0 inches is expected to linger across the
northern great lakes and southern ontario through tonight, with 
light north to northeast winds, becoming easterly on sunday. low 
pressure will then deepen to around 29.3 inches over the central 
high plains by sunday evening, shifting winds to the southeast 
over the lake. winds then shift more southerly and increase into 
monday, as the low lifts into the canadian prairies by monday 
evening, and a warm front passes north across the lake. breezy 
southerly winds will continue through at least wednesday as low 
pressure stalls over canada.



lmz261-362-364-366-563-565-567-868-280930-
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-
852 pm cdt sat jun 27 2026

sheboygan wi to pentwater mi north...

.rest of tonight...northeast winds 10 to 15 kt veering to east
5 to 10 kt. waves 1 to 2 ft. 
.sunday...east winds 10 to 15 kt increasing to 10 to 20 kt. waves
1 to 2 ft. 
.sunday night...east winds 10 to 20 kt becoming southeast 15 to
25 kt. chance of showers and thunderstorms overnight. waves 2 to
4 ft building to 3 to 5 ft. 
.monday...southeast winds 15 to 25 kt becoming south 25 to 30 kt.
chance of showers. waves 4 to 6 ft occasionally to 8 ft. 
.monday night...south winds 25 to 30 kt. waves 4 to 7 ft
occasionally to 9 ft. 
.tuesday...south winds 25 to 30 kt. waves 4 to 7 ft occasionally 
to 9 ft. 
.tuesday night...southwest winds 25 to 30 kt. chance of showers 
and thunderstorms. waves 4 to 7 ft occasionally to 9 ft subsiding 
to 4 to 6 ft occasionally to 8 ft. 
.wednesday...southwest winds 15 to 25 kt becoming south. waves
3 to 5 ft. 
.thursday...southwest winds 10 to 20 kt. waves 2 to 4 ft.  

$$

fzus63 kmkx 280152
glflm 
expires:202606280930;;024674

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
852 pm cdt sat jun 27 2026

for waters beyond five nautical miles of shore on lake michigan.

waves are provided as a range of significant wave heights, which
is the average of the highest 1/3 of the wave, along with the
average height of the highest 10% of the waves which will
occasionally be encountered.

.synopsis...

high pressure around 30.0 inches is expected to linger across the
northern great lakes and southern ontario through tonight, with 
light north to northeast winds, becoming easterly on sunday. low 
pressure will then deepen to around 29.3 inches over the central 
high plains by sunday evening, shifting winds to the southeast 
over the lake. winds then shift more southerly and increase into 
monday, as the low lifts into the canadian prairies by monday 
evening, and a warm front passes north across the lake. breezy 
southerly winds will continue through at least wednesday as low 
pressure stalls over canada.



lmz080-669-671-673-675-777-779-870-872-874-876-878-280930-
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-
852 pm cdt sat jun 27 2026

sheboygan wi to pentwater mi south...

.rest of tonight...north winds 10 to 20 kt becoming east 10 to
15 kt. waves 1 to 3 ft. 
.sunday...east winds 10 to 15 kt. waves 1 to 2 ft. 
.sunday night...southeast winds 10 to 20 kt increasing to 15 to
25 kt. waves 2 to 4 ft building to 3 to 5 ft. 
.monday...south winds 15 to 25 kt increasing to 30 kt. waves 4 to
6 ft occasionally to 8 ft. 
.monday night...south winds 20 to 30 kt diminishing to 15 to 25 
kt. waves 4 to 7 ft occasionally to 9 ft. 
.tuesday...south winds 15 to 25 kt increasing 20 to 30 kt. waves
4 to 6 ft occasionally to 8 ft building to 4 to 7 ft occasionally
to 9 ft. 
.tuesday night...southwest winds 20 to 30 kt diminishing to 10 to
20 kt. waves 4 to 7 ft occasionally to 9 ft subsiding to 4 to
6 ft occasionally to 8 ft. 
.wednesday...southwest winds 10 to 20 kt becoming south 15 to
25 kt. waves 3 to 5 ft. 
.thursday...southwest winds 10 to 20 kt becoming south. waves
2 to 4 ft.  

$$

fzus63 kmqt 280201
glfls 
expires:202606280800;;024898

open lake forecast for lake superior
national weather service marquette mi
1000 pm edt sat jun 27 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... 

tonight, lake superior is between 29.4 inch low pressure near the 
colorado/nebraska line and 30.1 inch high pressure over eastern 
hudson bay. through sunday afternoon, the low will wrap to the 
northeast then northwest to southern saskatchewan, deepening to 20.3 
inches while the high remains stationary and holds strength. by 
monday morning, the high will shift southeast to be east of lake 
erie as the saskatchewan low regresses southwest at 29.5 inches to 
montana while another low at 29.4 inches moves from colorado to the 
northern plains. the 2nd low moves to southern manitoba monday night 
as high pressure shifts off the east coast, still at 30.1 inches. 
tuesday, the low shifts north to lake winnipeg and deepens to 29.2 
inches. the low then weakens to 29.4 inches as it crosses northern 
ontario by midday wednesday. as the low shifts east through 
thursday, weak high pressure around 30.0 inches expands over much of 
the eastern conus.




lsz266-280800-
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-
1000 pm edt sat jun 27 2026

.rest of tonight...east winds 5 to 15 knots veering southeast
after midnight. a slight chance of showers after midnight. waves
calm to 2 feet. 
.sunday...southeast winds 5 to 15 knots becoming east 10 to
20 knots in the afternoon. waves building to 1 to 3 feet. 
.sunday night...southeast winds 10 to 20 knots increasing to
15 to 25 knots late. a chance of showers. a slight chance of
thunderstorms after midnight. waves building to 2 to 4 feet. 
.monday...southeast winds 15 to 25 knots. a chance of showers and
a slight chance of thunderstorms. waves 2 to 4 feet. 
.monday night...southeast winds 20 to 30 knots becoming south
15 to 25 knots after midnight. a chance of showers and
thunderstorms. waves building to 3 to 5 feet occasionally to
7 feet. 
.tuesday...south winds 10 to 20 knots. a chance of showers. waves
subsiding to calm to 2 feet. 
.tuesday night...south winds 10 to 20 knots becoming southwest
15 to 25 knots after midnight. a chance of showers. waves
building to 1 to 3 feet. 
.wednesday...southwest winds 5 to 15 knots backing south. a
chance of showers and thunderstorms. waves subsiding to calm to
2 feet. 
.thursday...south winds 5 to 15 knots. a chance of showers. waves
calm to 2 feet. 

$$

fzus63 kmqt 280201
glfls 
expires:202606280800;;024897

open lake forecast for lake superior
national weather service marquette mi
1000 pm edt sat jun 27 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... 

tonight, lake superior is between 29.4 inch low pressure near the 
colorado/nebraska line and 30.1 inch high pressure over eastern 
hudson bay. through sunday afternoon, the low will wrap to the 
northeast then northwest to southern saskatchewan, deepening to 20.3 
inches while the high remains stationary and holds strength. by 
monday morning, the high will shift southeast to be east of lake 
erie as the saskatchewan low regresses southwest at 29.5 inches to 
montana while another low at 29.4 inches moves from colorado to the 
northern plains. the 2nd low moves to southern manitoba monday night 
as high pressure shifts off the east coast, still at 30.1 inches. 
tuesday, the low shifts north to lake winnipeg and deepens to 29.2 
inches. the low then weakens to 29.4 inches as it crosses northern 
ontario by midday wednesday. as the low shifts east through 
thursday, weak high pressure around 30.0 inches expands over much of 
the eastern conus.




lsz265-280800-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
1000 pm edt sat jun 27 2026

.rest of tonight...southeast winds 5 to 15 knots. a slight chance
of showers after midnight. waves calm to 2 feet. 
.sunday...southeast winds 5 to 15 knots becoming east 15 to
25 knots in the afternoon. waves building to 1 to 3 feet. 
.sunday night...southeast winds 15 to 25 knots. a chance of
showers through midnight, then showers likely and a chance of
thunderstorms after midnight. waves building to 2 to 4 feet. 
.monday...southeast winds 10 to 20 knots increasing to 15 to
25 knots by mid afternoon. a chance of showers and a slight
chance of thunderstorms through early afternoon. waves subsiding
to 1 to 3 feet, then building to 2 to 4 feet. 
.monday night...southeast winds 20 to 30 knots becoming south
15 to 25 knots after midnight. a chance of showers. a chance of
thunderstorms after midnight. waves building to 3 to 5 feet
occasionally to 7 feet, then subsiding to 1 to 3 feet. 
.tuesday...southwest winds 10 to 20 knots backing southeast by
mid afternoon. a chance of showers by mid afternoon. waves
subsiding to calm to 2 feet. 
.tuesday night...south winds 15 to 25 knots veering southwest
after midnight. a chance of showers. waves calm to 2 feet. 
.wednesday...southwest winds 10 to 20 knots backing south. a
chance of showers and thunderstorms. waves calm to 2 feet. 
.thursday...southeast winds 10 to 20 knots becoming west 5 to
15 knots. a chance of showers. waves calm to 2 feet. 

$$

fzus63 kmqt 280201
glfls 
expires:202606280800;;024896

open lake forecast for lake superior
national weather service marquette mi
1000 pm edt sat jun 27 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... 

tonight, lake superior is between 29.4 inch low pressure near the 
colorado/nebraska line and 30.1 inch high pressure over eastern 
hudson bay. through sunday afternoon, the low will wrap to the 
northeast then northwest to southern saskatchewan, deepening to 20.3 
inches while the high remains stationary and holds strength. by 
monday morning, the high will shift southeast to be east of lake 
erie as the saskatchewan low regresses southwest at 29.5 inches to 
montana while another low at 29.4 inches moves from colorado to the 
northern plains. the 2nd low moves to southern manitoba monday night 
as high pressure shifts off the east coast, still at 30.1 inches. 
tuesday, the low shifts north to lake winnipeg and deepens to 29.2 
inches. the low then weakens to 29.4 inches as it crosses northern 
ontario by midday wednesday. as the low shifts east through 
thursday, weak high pressure around 30.0 inches expands over much of 
the eastern conus.




lsz264-280800-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
1000 pm edt sat jun 27 2026

.rest of tonight...southeast winds 5 to 15 knots. a slight chance
of showers after midnight. waves calm to 2 feet. 
.sunday...east winds 5 to 15 knots increasing to 10 to 20 knots
late. a slight chance of showers by mid afternoon. waves building
to 1 to 3 feet. 
.sunday night...southeast winds 10 to 20 knots. a chance of
showers. a slight chance of thunderstorms after midnight. waves
building to 2 to 4 feet. 
.monday...southeast winds 10 to 20 knots. a chance of showers and
a slight chance of thunderstorms. waves 2 to 4 feet. 
.monday night...southeast winds 10 to 20 knots veering south
after midnight. showers likely and a chance of thunderstorms.
waves building to 3 to 5 feet occasionally to 7 feet. 
.tuesday...southwest winds 5 to 15 knots backing south by mid
afternoon. a chance of showers. waves subsiding to calm to
2 feet. 
.tuesday night...south winds 10 to 20 knots veering southwest
after midnight. a chance of showers. waves building to 1 to
3 feet. 
.wednesday...southwest winds 5 to 15 knots backing south. a
chance of showers. waves subsiding to calm to 2 feet. 
.thursday...south winds 5 to 15 knots veering west. a chance of
showers. waves calm to 2 feet. 

$$

fzus63 kmqt 280201
glfls 
expires:202606280800;;024895

open lake forecast for lake superior
national weather service marquette mi
1000 pm edt sat jun 27 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... 

tonight, lake superior is between 29.4 inch low pressure near the 
colorado/nebraska line and 30.1 inch high pressure over eastern 
hudson bay. through sunday afternoon, the low will wrap to the 
northeast then northwest to southern saskatchewan, deepening to 20.3 
inches while the high remains stationary and holds strength. by 
monday morning, the high will shift southeast to be east of lake 
erie as the saskatchewan low regresses southwest at 29.5 inches to 
montana while another low at 29.4 inches moves from colorado to the 
northern plains. the 2nd low moves to southern manitoba monday night 
as high pressure shifts off the east coast, still at 30.1 inches. 
tuesday, the low shifts north to lake winnipeg and deepens to 29.2 
inches. the low then weakens to 29.4 inches as it crosses northern 
ontario by midday wednesday. as the low shifts east through 
thursday, weak high pressure around 30.0 inches expands over much of 
the eastern conus.




lsz263-280800-
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-
1000 pm edt sat jun 27 2026

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

$$

fzus63 kmqt 280201
glfls 
expires:202606280800;;024894

open lake forecast for lake superior
national weather service marquette mi
1000 pm edt sat jun 27 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... 

tonight, lake superior is between 29.4 inch low pressure near the 
colorado/nebraska line and 30.1 inch high pressure over eastern 
hudson bay. through sunday afternoon, the low will wrap to the 
northeast then northwest to southern saskatchewan, deepening to 20.3 
inches while the high remains stationary and holds strength. by 
monday morning, the high will shift southeast to be east of lake 
erie as the saskatchewan low regresses southwest at 29.5 inches to 
montana while another low at 29.4 inches moves from colorado to the 
northern plains. the 2nd low moves to southern manitoba monday night 
as high pressure shifts off the east coast, still at 30.1 inches. 
tuesday, the low shifts north to lake winnipeg and deepens to 29.2 
inches. the low then weakens to 29.4 inches as it crosses northern 
ontario by midday wednesday. as the low shifts east through 
thursday, weak high pressure around 30.0 inches expands over much of 
the eastern conus.




lsz162-280800-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
1000 pm edt sat jun 27 2026 /900 pm cdt sat jun 27 2026/

.rest of tonight...northeast winds 5 to 15 knots. a slight chance
of showers. waves calm to 2 feet. 
.sunday...east winds 10 to 20 knots increasing to 15 to 25 knots
late. a slight chance of showers by mid afternoon. waves building
to 2 to 4 feet. 
.sunday night...east winds 10 to 20 knots backing northeast after
midnight, then veering east late. a chance of showers and
thunderstorms. waves subsiding to 1 to 3 feet. 
.monday...northeast winds 10 to 20 knots. a chance of showers and
a slight chance of thunderstorms. waves subsiding to calm to
2 feet, then building to 1 to 3 feet. 
.monday night...northeast winds 15 to 25 knots diminishing to
10 to 20 knots after midnight. showers likely and a chance of
thunderstorms. waves building to 2 to 4 feet, then subsiding to
calm to 2 feet. 
.tuesday...southwest winds 10 to 20 knots. a chance of showers
and thunderstorms by mid afternoon. waves calm to 2 feet. 
.tuesday night...southwest winds 10 to 20 knots. a chance of
showers. waves calm to 2 feet. 
.wednesday...southwest winds 10 to 20 knots becoming south 5 to
15 knots. a chance of showers and thunderstorms. waves calm to
2 feet. 
.thursday...east winds 5 to 15 knots backing north. a chance of
showers and thunderstorms. waves calm to 2 feet. 

$$

fzus63 kmqt 280201
glfls 
expires:202606280800;;024899

open lake forecast for lake superior
national weather service marquette mi
1000 pm edt sat jun 27 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... 

tonight, lake superior is between 29.4 inch low pressure near the 
colorado/nebraska line and 30.1 inch high pressure over eastern 
hudson bay. through sunday afternoon, the low will wrap to the 
northeast then northwest to southern saskatchewan, deepening to 20.3 
inches while the high remains stationary and holds strength. by 
monday morning, the high will shift southeast to be east of lake 
erie as the saskatchewan low regresses southwest at 29.5 inches to 
montana while another low at 29.4 inches moves from colorado to the 
northern plains. the 2nd low moves to southern manitoba monday night 
as high pressure shifts off the east coast, still at 30.1 inches. 
tuesday, the low shifts north to lake winnipeg and deepens to 29.2 
inches. the low then weakens to 29.4 inches as it crosses northern 
ontario by midday wednesday. as the low shifts east through 
thursday, weak high pressure around 30.0 inches expands over much of 
the eastern conus.




lsz267-280800-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
1000 pm edt sat jun 27 2026

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

$$