fzus61 kbuf 260209
glflo 
expires:202603260900;;298295

open lake forecast for lake ontario
national weather service buffalo ny
1009 pm edt wed mar 25 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 29.7 inch low over the central great lakes tonight 
will pass north of the lake on thursday, then to the gulf of saint 
lawrence by early friday, with a trailing cold front crossing the 
lake thursday evening. a large 30.7 inch high will then build across 
the great lakes region friday through sunday.


loz063-064-260900-
lake ontario open waters from hamlin beach to mexico bay-
1009 pm edt wed mar 25 2026

.overnight...southeast winds 15 to 20 knots becoming south.
a chance of rain showers late. waves 1 to 3 feet building to 3 to
5 feet. 
.thursday...southwest winds 10 to 15 knots becoming northwest. a
chance of rain showers early in the afternoon. rain showers
likely late. waves 3 to 5 feet subsiding to 2 to 4 feet. 
.thursday night...north winds 10 to 15 knots increasing to 15 to
25 knots. rain showers in the evening, then rain showers with a
chance of snow showers overnight. waves 2 to 3 feet building to
3 to 5 feet. 
.friday...north winds 15 to 25 knots. a chance of snow showers in
the morning. waves 4 to 7 feet subsiding to 2 to 4 feet. waves
occasionally around 9 feet. 
.friday night...north winds 10 to 15 knots. waves 1 to 3 feet. 
.saturday...northwest winds 10 to 15 knots becoming west 15 to
20 knots. waves 1 to 2 feet building to 3 to 6 feet. 
.sunday...west winds 15 to 20 knots becoming south. waves 3 to
5 feet. 
.monday...southwest winds 15 to 20 knots becoming north. waves
3 to 6 feet. 

$$

fzus61 kbuf 260209
glflo 
expires:202603260900;;298296

open lake forecast for lake ontario
national weather service buffalo ny
1009 pm edt wed mar 25 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 29.7 inch low over the central great lakes tonight 
will pass north of the lake on thursday, then to the gulf of saint 
lawrence by early friday, with a trailing cold front crossing the 
lake thursday evening. a large 30.7 inch high will then build across 
the great lakes region friday through sunday.


loz065-260900-
lake ontario open waters from mexico bay to the saint lawrence
river-
1009 pm edt wed mar 25 2026

.overnight...south winds 15 to 20 knots. a chance of rain
showers late. waves 1 to 3 feet building to 3 to 5 feet. 
.thursday...south winds 15 to 20 knots becoming southwest 10 to
15 knots. a chance of rain showers early in the afternoon. rain
showers likely late. waves 3 to 5 feet subsiding to 1 to 3 feet. 
.thursday night...southeast winds around 10 knots becoming north
and increasing to 15 to 20 knots. rain showers in the evening,
then rain showers likely with a chance of snow showers overnight.
waves 1 to 3 feet building to 2 to 4 feet. 
.friday...north winds 15 to 25 knots. a chance of snow showers in
the morning. waves 3 to 5 feet subsiding to 1 to 3 feet. 
.friday night...north winds 10 to 15 knots. waves 1 to 3 feet. 
.saturday...northwest winds 5 to 15 knots becoming west 15 to
20 knots. waves 1 foot or less building to 3 to 5 feet. 
.sunday...west winds 10 to 15 knots becoming south 15 to
20 knots. waves 3 to 5 feet. 
.monday...south winds 15 to 20 knots becoming north. waves 3 to
6 feet subsiding to 2 to 4 feet. 

$$

fzus61 kbuf 260209
glflo 
expires:202603260900;;298294

open lake forecast for lake ontario
national weather service buffalo ny
1009 pm edt wed mar 25 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 29.7 inch low over the central great lakes tonight 
will pass north of the lake on thursday, then to the gulf of saint 
lawrence by early friday, with a trailing cold front crossing the 
lake thursday evening. a large 30.7 inch high will then build across 
the great lakes region friday through sunday.


loz062-260900-
lake ontario open waters from the niagara river to hamlin beach-
1009 pm edt wed mar 25 2026

.overnight...southeast winds 5 to 15 knots becoming
southwest. waves 1 to 3 feet building to 2 to 4 feet. 
.thursday...southwest winds 15 to 20 knots becoming northwest
10 to 15 knots. a chance of showers early in the afternoon.
showers likely late. waves 2 to 4 feet subsiding to 1 to 3 feet. 
.thursday night...northeast winds 10 to 15 knots becoming north
15 to 20 knots. rain showers in the evening, then rain showers
likely with a chance of snow showers overnight. waves 1 to 3 feet
building to 2 to 4 feet. 
.friday...north winds 15 to 20 knots diminishing to 10 to
15 knots. a chance of snow showers in the morning. waves 3 to
5 feet subsiding to 2 to 3 feet. 
.friday night...northwest winds 10 to 15 knots. waves 1 to
3 feet. 
.saturday...northwest winds 10 to 15 knots becoming west 15 to
20 knots. waves 1 to 2 feet building to 3 to 5 feet. 
.sunday...southwest winds 10 to 15 knots increasing to 15 to
20 knots. waves 2 to 4 feet building to 3 to 5 feet. 
.monday...southwest winds 15 to 25 knots becoming north. waves
3 to 6 feet subsiding to 2 to 4 feet. 

$$

fzus61 kcle 260757
glfle 
expires:202603261415;;311804

open lake forecast for lake erie
national weather service cleveland oh
357 am edt thu mar 26 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...
a ridge averaging 30.40 inches continues to exit to the east and 
south before a strong cold front sweeps south-southeastward 
across lake erie late this afternoon through early evening. 
behind the cold front, another ridge averaging 30.40 inches should
influence lake erie through this weekend as the embedded high 
pressure center wobbles from the north-central united states 
toward virginia and vicinity. this evolution of the ridge will 
allow a warm front to drift northward across lake erie saturday 
night. on monday, the ridge should exit southeastward as a cold 
front settles southeastward across lake erie and potentially 
stalls over and near the lake.


lez061-168-169-261415-
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-
357 am edt thu mar 26 2026

.today...southwest winds 5 to 15 knots becoming northwest. a
chance of rain showers late this morning. rain showers with a
chance of thunderstorms early this afternoon, then rain showers
with thunderstorms likely late. waves 1 to 3 feet. 
.tonight...north winds 5 to 15 knots increasing to 15 to
20 knots. rain showers with thunderstorms likely in the evening,
then a chance of rain showers after midnight. waves 1 to 2 feet
building to 2 to 4 feet. 
.friday...northeast winds 15 to 20 knots diminishing to 5 to
15 knots. waves 2 to 4 feet subsiding to 1 to 3 feet. 
.friday night...north winds 5 to 15 knots becoming northwest.
waves 2 feet or less. 
.saturday...northwest winds 5 to 15 knots becoming southwest.
waves 1 to 3 feet. 
.sunday...southwest winds 5 to 15 knots. waves 1 to 2 feet
building to 2 to 4 feet. 
.monday...southwest winds 15 to 20 knots becoming northeast 5 to
15 knots. a chance of rain. waves 3 to 5 feet subsiding to 1 to
3 feet. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 260757
glfle 
expires:202603261415;;311802

open lake forecast for lake erie
national weather service cleveland oh
357 am edt thu mar 26 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...
a ridge averaging 30.40 inches continues to exit to the east and 
south before a strong cold front sweeps south-southeastward 
across lake erie late this afternoon through early evening. 
behind the cold front, another ridge averaging 30.40 inches should
influence lake erie through this weekend as the embedded high 
pressure center wobbles from the north-central united states 
toward virginia and vicinity. this evolution of the ridge will 
allow a warm front to drift northward across lake erie saturday 
night. on monday, the ridge should exit southeastward as a cold 
front settles southeastward across lake erie and potentially 
stalls over and near the lake.


lez162>164-261415-
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-
357 am edt thu mar 26 2026

.today...southwest winds 10 to 15 knots becoming west. a slight
chance of showers late this morning. a chance of showers and
thunderstorms early this afternoon, then showers with
thunderstorms likely late. waves 1 to 2 feet. 
.tonight...north winds 15 to 20 knots. rain showers with
thunderstorms likely in the evening, then rain showers likely
after midnight. waves 1 to 3 feet building to 3 to 5 feet. 
.friday...northeast winds 15 to 20 knots becoming north 10 to
15 knots. waves 3 to 5 feet subsiding to 1 to 3 feet. 
.friday night...north winds 5 to 15 knots becoming northwest.
waves 1 to 3 feet. 
.saturday...northwest winds 5 to 15 knots becoming southwest.
waves 2 feet or less. 
.sunday...south winds 10 to 15 knots becoming southwest 15 to
20 knots. waves 1 to 3 feet. 
.monday...southwest winds 15 to 20 knots becoming east. a chance
of rain monday night. waves 2 to 4 feet building to 3 to 5 feet. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 260757
glfle 
expires:202603261415;;311803

open lake forecast for lake erie
national weather service cleveland oh
357 am edt thu mar 26 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...
a ridge averaging 30.40 inches continues to exit to the east and 
south before a strong cold front sweeps south-southeastward 
across lake erie late this afternoon through early evening. 
behind the cold front, another ridge averaging 30.40 inches should
influence lake erie through this weekend as the embedded high 
pressure center wobbles from the north-central united states 
toward virginia and vicinity. this evolution of the ridge will 
allow a warm front to drift northward across lake erie saturday 
night. on monday, the ridge should exit southeastward as a cold 
front settles southeastward across lake erie and potentially 
stalls over and near the lake.


lez165>167-261415-
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-
357 am edt thu mar 26 2026

.today...southwest winds 10 to 15 knots becoming west. a chance
of showers late this morning. a chance of showers and
thunderstorms early this afternoon, then showers with a chance of
thunderstorms late. waves 2 to 4 feet subsiding to 1 to 3 feet. 
.tonight...north winds 10 to 15 knots increasing to 15 to
20 knots. rain showers with thunderstorms likely in the evening,
then rain showers after midnight. waves 1 to 3 feet building to
3 to 5 feet. 
.friday...northeast winds 15 to 20 knots becoming north 10 to
15 knots. waves 3 to 5 feet subsiding to 1 to 3 feet. 
.friday night...north winds 15 to 20 knots becoming northwest
10 to 15 knots. waves 1 to 3 feet building to 2 to 4 feet, then
subsiding to 1 to 2 feet. 
.saturday...northwest winds 5 to 15 knots becoming southwest.
waves 1 to 3 feet. 
.sunday...south winds 5 to 15 knots becoming southwest 15 to
20 knots. waves 1 to 3 feet building to 3 to 5 feet. 
.monday...southwest winds 15 to 20 knots becoming northeast. a
chance of rain. waves 3 to 6 feet subsiding to 3 to 5 feet. 

winds and waves higher in and near thunderstorms.

$$

fzus63 kdtx 260737
glflh 
expires:202603261545;;311354

open lake forecast for lake huron
national weather service detroit/pontiac mi
337 am edt thu mar 26 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...weak low pressure crosses the northern great lakes
today with warmer air to start. the system eventually drags a
cold front through the region late this evening supporting
widespread showers and a few potentially strong thunderstorms
over the southern waterways. northerly winds strengthen into
friday as cold air returns. becoming milder and breezy at times
through the weekend.


lhz361-261545-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
337 am edt thu mar 26 2026

.today...northwest winds 5 to 10 knots veering to the north early
in the afternoon...then increasing to 10 to 15 knots late in the
afternoon. a chance of snow showers and showers in the afternoon.
waves 1 to 3 feet. 
.tonight...north winds 10 to 15 knots increasing to 15 to
20 knots by midnight...then becoming northeast 10 to 15 knots
early in the morning. waves 1 to 3 feet building to 3 to 5 feet
in the late evening and overnight. 
.friday...northeast winds 10 to 15 knots decreasing to 5 to
10 knots in the late morning and early afternoon...then backing
to the northwest early in the afternoon. waves 2 to 4 feet
subsiding to 1 to 3 feet in the late morning and afternoon. 
.friday night...northwest winds 10 to 15 knots. waves 1 to 3 feet
building to 2 to 4 feet in the late evening and overnight. 
.saturday...west winds 15 to 20 knots becoming southwest 5 to
10 knots. waves 3 to 5 feet subsiding to 1 to 3 feet late in the
evening. 
.sunday...south winds 5 to 10 knots increasing to 10 to 15 knots
. waves 1 to 3 feet building to 3 to 5 feet . 
.monday...southwest winds 15 to 20 knots becoming west 10 to
15 knots until early evening...then veering to the northwest by
midnight. waves 3 to 5 feet subsiding to 1 to 3 feet . 

wave heights are for ice free areas.

$$

fzus63 kdtx 260737
glflh 
expires:202603261545;;311355

open lake forecast for lake huron
national weather service detroit/pontiac mi
337 am edt thu mar 26 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...weak low pressure crosses the northern great lakes
today with warmer air to start. the system eventually drags a
cold front through the region late this evening supporting
widespread showers and a few potentially strong thunderstorms
over the southern waterways. northerly winds strengthen into
friday as cold air returns. becoming milder and breezy at times
through the weekend.


lhz362-363-261545-
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-
337 am edt thu mar 26 2026

.today...west winds 5 to 10 knots becoming 10 to 15 knots late in
the afternoon. a chance of showers in the morning...then showers
likely and a chance of snow showers in the afternoon. waves 1 to
3 feet. 
.tonight...north winds 10 to 15 knots increasing to 15 to
20 knots late in the evening...then increasing to 20 to 25 knots
after midnight decreasing to 15 to 20 knots early in the morning.
waves 3 to 5 feet building to 6 to 9 feet after midnight. waves
occasionally around 12 feet. 
.friday...northeast winds 15 to 20 knots becoming north 10 to
15 knots in the late morning and afternoon. waves 5 to 7 feet.
waves occasionally around 10 feet. 
.friday night...north winds 10 to 15 knots backing to the
northwest by midnight...then increasing to 15 to 20 knots after
midnight. waves 3 to 5 feet. 
.saturday...west winds 15 to 20 knots decreasing to 10 to
15 knots late in the afternoon. waves 4 to 6 feet. waves
occasionally around 8 feet. 
.sunday...south winds 10 to 15 knots increasing to 15 to 20 knots
by midnight. waves 4 to 6 feet. waves occasionally around 8 feet.
.monday...southwest winds 15 to 20 knots becoming northwest 10 to
15 knots early in the evening...then becoming north 15 to
20 knots by midnight. waves 4 to 6 feet. 


$$

fzus63 kdtx 260737
glflh 
expires:202603261545;;311356

open lake forecast for lake huron
national weather service detroit/pontiac mi
337 am edt thu mar 26 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...weak low pressure crosses the northern great lakes
today with warmer air to start. the system eventually drags a
cold front through the region late this evening supporting
widespread showers and a few potentially strong thunderstorms
over the southern waterways. northerly winds strengthen into
friday as cold air returns. becoming milder and breezy at times
through the weekend.


lhz462>464-261545-
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-
337 am edt thu mar 26 2026

.today...west winds 5 to 10 knots. a chance of showers in the
morning...then showers likely in the afternoon. waves 1 to
3 feet. 
.tonight...north winds 10 to 15 knots increasing to 20 to
25 knots. waves 1 to 3 feet building to 6 to 9 feet. waves
occasionally around 12 feet. 
.friday...north winds 15 to 20 knots. waves 6 to 9 feet. waves
occasionally around 12 feet. 
.friday night...north winds 10 to 15 knots backing to the west
after midnight. waves 3 to 5 feet. 
.saturday...west winds 10 to 15 knots. waves 3 to 5 feet
subsiding to 2 to 4 feet late in the evening. 
.sunday...south winds 10 to 15 knots increasing to 15 to 20 knots
by midnight. waves 2 to 4 feet building to 3 to 5 feet . 
.monday...south winds 15 to 20 knots becoming southwest 10 to
15 knots in the late morning and early afternoon...then veering
to the west early in the evening veering to the west 10 to
15 knots by midnight. a chance of rain by midnight. waves 3 to
5 feet. 

wave heights are for ice free areas.

$$

fzus63 kdtx 260736
glfsc 
expires:202603261545;;311352

lake st clair forecast
national weather service detroit/pontiac mi
336 am edt thu mar 26 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...weak low pressure crosses the northern great lakes
today with warmer air to start. the system eventually drags a
cold front through the region late this evening supporting
showers and a few potentially strong thunderstorms
over the southern waterways. northerly winds strengthen into
friday as cold air returns. becoming milder and breezy at times
through the weekend.


lcz460-261545-
lake st clair-
336 am edt thu mar 26 2026

.today...southwest winds 5 to 10 knots backing to the southeast
early in the afternoon...then becoming north 10 to 15 knots late in
the afternoon. partly sunny until late afternoon. a chance of light
showers in the late morning and early afternoon. rain showers late
in the afternoon with a slight chance of thunderstorms. waves 2 
feet or less.
.tonight...north winds 10 to 15 knots increasing to 15 to 20 knots
in the late evening and overnight. showers early in the
evening...then a chance of showers late in the evening. waves 1 to 3
feet.
.friday...north winds 15 to 20 knots diminishing to 10 to 15 knots
early in the afternoon. partly sunny. waves 1 to 3 feet.
.friday night...north winds 10 to 15 knots becoming northwest 5 to
10 knots after midnight. mostly clear. waves 2 feet or less.
.saturday...northwest winds 5 to 10 knots becoming west 10 to 15
knots in the afternoon and evening. mostly sunny becoming partly
cloudy. waves 2 feet or less.
.sunday...south winds 15 to 20 knots. partly cloudy. waves 2 feet or
less.
.monday...north winds 15 to 20 knots. partly cloudy. a chance of
light rain. waves 1 to 3 feet.

$$

fzus63 kmkx 260755
glflm 
expires:202603261530;;311772

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
255 am cdt thu mar 26 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...

a weak backdoor cold front is slowly moving south across the lake
early this morning. light southwest winds are out ahead of the
front and light north winds are directly behind it. low pressure 
strengthens to 29.4 inches over the central great plains on 
today, with a trough of low pressure around 29.7 inches extending
northeastward through illinois / indiana (south of the 
aforementioned cold front). meanwhile, high pressure around 30.7 
inches builds into southern canada. the tightening pressure 
gradient will cause north winds to accelerate across the lake 
this afternoon, achieving gale force over the southern two thirds
of the lake late this afternoon through late thursday night. a 
gale warning is in effect.

north winds gradually subside in a north to south manner friday as
the aforementioned high pressure builds into the midwest. light
northwest winds expected into friday night as the aforementioned
high pressure passes southwest of the lake, with winds gradually
backing south through saturday. modest southerly winds take hold 
for much of the rest of the weekend as high pressure exits east
into the atlantic and broad low pressure develops over the plains.


lmz261-362-364-563-261530-
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-
255 am cdt thu mar 26 2026

sturgeon bay wi to point betsie mi north...

.today...north winds 5 to 10 kt increasing to 15 to 25 kt. patchy
fog. chance of rain showers and light freezing rain this morning,
then rain showers likely with a chance of snow showers this
afternoon. waves 1 to 3 ft building to 3 to 5 ft. 
.tonight...north winds to 30 kt becoming northeast 15 to 25 kt.
waves 5 to 8 ft occasionally to 10 ft subsiding to 4 to 7 ft
occasionally to 9 ft. 
.friday...northeast winds 10 to 20 kt diminishing to 10 to 15 kt
late in the morning, then becoming north 5 to 10 kt early in the
afternoon becoming west 10 to 15 kt late. waves 3 to 5 ft
subsiding to 1 to 3 ft. 
.friday night...northwest winds 10 to 20 kt. waves 1 to 2 ft
building to 1 to 3 ft. 
.saturday...west winds 15 to 25 kt becoming southwest. waves 2 to
4 ft building to 3 to 5 ft. 
.saturday night...southwest winds 10 to 20 kt becoming south.
waves 3 to 5 ft. 
.sunday...south winds 10 to 20 kt. waves 4 to 6 ft occasionally
to 8 ft. 
.monday...west winds 10 to 20 kt becoming north 10 to 15 kt.
waves 4 to 7 ft occasionally to 9 ft subsiding to 4 to 6 ft
occasionally to 8 ft.  

$$

fzus63 kmkx 260755
glflm 
expires:202603261530;;311773

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
255 am cdt thu mar 26 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...

a weak backdoor cold front is slowly moving south across the lake
early this morning. light southwest winds are out ahead of the
front and light north winds are directly behind it. low pressure 
strengthens to 29.4 inches over the central great plains on 
today, with a trough of low pressure around 29.7 inches extending
northeastward through illinois / indiana (south of the 
aforementioned cold front). meanwhile, high pressure around 30.7 
inches builds into southern canada. the tightening pressure 
gradient will cause north winds to accelerate across the lake 
this afternoon, achieving gale force over the southern two thirds
of the lake late this afternoon through late thursday night. a 
gale warning is in effect.

north winds gradually subside in a north to south manner friday as
the aforementioned high pressure builds into the midwest. light
northwest winds expected into friday night as the aforementioned
high pressure passes southwest of the lake, with winds gradually
backing south through saturday. modest southerly winds take hold 
for much of the rest of the weekend as high pressure exits east
into the atlantic and broad low pressure develops over the plains.


lmz366-565-567-868-261530-
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 pentwater to manistee mi 5 nm offshore to mid
lake-
255 am cdt thu mar 26 2026

sturgeon bay wi to point betsie mi south to sheboygan wi to
pentwater mi...

...gale warning in effect from this afternoon through late
tonight...

.today...northeast winds 5 to 10 kt becoming north to 30 kt.
patchy fog this morning. chance of rain showers. waves 2 to 4 ft
building to 4 to 6 ft occasionally to 8 ft. 
.tonight...north gales to 35 kt becoming northeast to 30 kt.
waves 7 to 10 ft occasionally to 13 ft building to 8 to 12 ft
occasionally to 16 ft, then subsiding to 7 to 10 ft occasionally
to 13 ft. 
.friday...north winds 10 to 20 kt. waves 5 to 8 ft occasionally
to 10 ft subsiding to 2 to 4 ft. 
.friday night...northwest winds 10 to 15 kt. chance of snow
showers in the evening. waves 1 to 3 ft. 
.saturday...west winds 10 to 20 kt becoming southwest. waves 2 to
4 ft building to 3 to 5 ft. 
.saturday night...south winds 10 to 20 kt. waves 3 to 5 ft. 
.sunday...south winds 10 to 20 kt increasing to 15 to 25 kt.
waves 4 to 6 ft occasionally to 8 ft. 
.monday...west winds 10 to 20 kt veering to northeast. waves 4 to
7 ft occasionally to 9 ft subsiding to 4 to 6 ft occasionally to
8 ft.  

$$

fzus63 kmkx 260755
glflm 
expires:202603261530;;311774

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
255 am cdt thu mar 26 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...

a weak backdoor cold front is slowly moving south across the lake
early this morning. light southwest winds are out ahead of the
front and light north winds are directly behind it. low pressure 
strengthens to 29.4 inches over the central great plains on 
today, with a trough of low pressure around 29.7 inches extending
northeastward through illinois / indiana (south of the 
aforementioned cold front). meanwhile, high pressure around 30.7 
inches builds into southern canada. the tightening pressure 
gradient will cause north winds to accelerate across the lake 
this afternoon, achieving gale force over the southern two thirds
of the lake late this afternoon through late thursday night. a 
gale warning is in effect.

north winds gradually subside in a north to south manner friday as
the aforementioned high pressure builds into the midwest. light
northwest winds expected into friday night as the aforementioned
high pressure passes southwest of the lake, with winds gradually
backing south through saturday. modest southerly winds take hold 
for much of the rest of the weekend as high pressure exits east
into the atlantic and broad low pressure develops over the plains.


lmz080-669-671-673-675-777-779-870-872-874-876-878-261530-
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-
255 am cdt thu mar 26 2026

sheboygan wi to pentwater mi south...

...gale warning in effect from this afternoon through late
tonight...

.today...southeast winds 5 to 10 kt backing to north 10 to 15 kt
late this morning, then increasing to 15 to 25 kt early this
afternoon increasing to 30 kt late. slight chance of rain showers
this morning, then chance of rain showers and slight chance of
thunderstorms this afternoon. patchy fog this afternoon. waves
1 to 3 ft building to 4 to 7 ft occasionally to 9 ft. 
.tonight...north gales to 35 kt. patchy fog in the evening.
chance of rain showers in the evening. waves 8 to 11 ft
occasionally to 14 ft building to 10 to 14 ft occasionally to
18 ft. 
.friday...north winds 15 to 25 kt diminishing to 10 to 20 kt.
waves 7 to 10 ft occasionally to 13 ft subsiding to 4 to 6 ft
occasionally to 8 ft. 
.friday night...northwest winds 10 to 20 kt. waves 3 to 5 ft. 
.saturday...west winds 10 to 20 kt backing to southwest. waves
3 to 5 ft. 
.saturday night...south winds 10 to 20 kt. waves 3 to 5 ft. 
.sunday...south winds 10 to 20 kt increasing to 15 to 25 kt.
waves 4 to 6 ft occasionally to 8 ft. 
.monday...southwest winds 15 to 25 kt veering to north 10 to
20 kt. waves 4 to 7 ft occasionally to 9 ft subsiding to 4 to
6 ft occasionally to 8 ft.  

$$

fzus63 kmqt 260801
glfls 
expires:202603262000;;311932

open lake forecast for lake superior
national weather service marquette mi
400 am edt thu mar 26 2026

for waters beyond 5 nautical miles of shore on lake superior.

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

.synopsis...

a 29.8 inch trough over lake superior will slowly shift south and 
east today as expansive 30.7 inch high pressure builds from central 
canada over much of the northern conus by friday. this will maintain 
30.4 inch ridging over lake superior through sunday morning as the 
30.7 inch high shifts to the mid-atlantic. a 29.8 inch trough will 
move over lake sunday night, with ridging of 30.2 inches returning 
by monday night.



lsz263-262000-
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-
400 am edt thu mar 26 2026

.early this morning...northeast winds 10 to 20 knots. a slight
chance of snow showers. waves 2 to 4 feet. 
.today...northeast winds 10 to 20 knots. a slight chance of snow
showers through early afternoon. waves building to 3 to 5 feet
occasionally to 7 feet, then subsiding to 2 to 4 feet. 
.tonight...north winds 10 to 20 knots diminishing to 5 to
15 knots late. a slight chance of snow showers after midnight.
waves subsiding to calm to 2 feet. 
.friday...north winds 5 to 15 knots becoming northwest 10 to
20 knots in the afternoon, then increasing to 15 to 25 knots
late. a slight chance of snow showers. waves building to 2 to
4 feet. 
.friday night...northwest winds 15 to 25 knots becoming west
10 to 20 knots after midnight. waves building to 3 to 6 feet
occasionally to 8 feet, then subsiding to 2 to 4 feet. 
.saturday...west winds 10 to 20 knots backing southwest by mid
afternoon. waves subsiding to calm to 2 feet. 
.saturday night...southeast winds 5 to 15 knots. waves calm to
2 feet. 
.sunday...east winds 5 to 15 knots becoming north 10 to 20 knots.
waves building to 2 to 4 feet. 
.monday...north winds 10 to 20 knots becoming east 20 to
30 knots. waves subsiding to calm to 2 feet, then building to
3 to 6 feet occasionally to 8 feet. 

$$

fzus63 kmqt 260801
glfls 
expires:202603262000;;311931

open lake forecast for lake superior
national weather service marquette mi
400 am edt thu mar 26 2026

for waters beyond 5 nautical miles of shore on lake superior.

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

.synopsis...

a 29.8 inch trough over lake superior will slowly shift south and 
east today as expansive 30.7 inch high pressure builds from central 
canada over much of the northern conus by friday. this will maintain 
30.4 inch ridging over lake superior through sunday morning as the 
30.7 inch high shifts to the mid-atlantic. a 29.8 inch trough will 
move over lake sunday night, with ridging of 30.2 inches returning 
by monday night.



lsz162-262000-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
400 am edt thu mar 26 2026 /300 am cdt thu mar 26 2026/

.early this morning...northeast winds 10 to 20 knots. a slight
chance of rain showers, freezing rain and snow showers. waves
2 to 4 feet. 
.today...northeast winds 10 to 20 knots. a slight chance of snow
showers through early afternoon. waves building to 3 to 5 feet
occasionally to 7 feet, then subsiding to 2 to 4 feet. 
.tonight...northeast winds 5 to 15 knots backing north after
midnight, then veering northeast late. a slight chance of snow
showers after midnight. waves subsiding to calm to 2 feet. 
.friday...north winds 5 to 15 knots becoming northwest 10 to
20 knots in the afternoon, then increasing to 15 to 25 knots
late. a slight chance of snow showers. waves building to 2 to
4 feet. 
.friday night...northwest winds 10 to 20 knots backing west after
midnight. waves subsiding to calm to 2 feet. 
.saturday...west winds 10 to 20 knots backing south by mid
afternoon. waves calm to 2 feet. 
.saturday night...east winds 5 to 15 knots. waves calm to 2 feet.
.sunday...east winds 10 to 20 knots backing north. waves calm to
2 feet. 
.monday...north winds 10 to 20 knots becoming east 15 to
25 knots. waves building to 3 to 6 feet occasionally to 8 feet. 

$$