fzus61 kbuf 252003
glflo 
expires:202603260300;;286207

open lake forecast for lake ontario
national weather service buffalo ny
403 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.


loz062-260300-
lake ontario open waters from the niagara river to hamlin beach-
403 pm edt wed mar 25 2026

.tonight...east winds 5 to 15 knots becoming southwest 15 to
20 knots. 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 kbuf 252003
glflo 
expires:202603260300;;286209

open lake forecast for lake ontario
national weather service buffalo ny
403 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.


loz065-260300-
lake ontario open waters from mexico bay to the saint lawrence
river-
403 pm edt wed mar 25 2026

.tonight...east winds 10 to 15 knots becoming south 15 to
20 knots. a chance of rain showers early. a chance of rain
showers late. waves 1 foot or less 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 252003
glflo 
expires:202603260300;;286208

open lake forecast for lake ontario
national weather service buffalo ny
403 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.


loz063-064-260300-
lake ontario open waters from hamlin beach to mexico bay-
403 pm edt wed mar 25 2026

.tonight...east winds 10 to 15 knots becoming southwest 15 to
20 knots. a chance of rain showers late. waves 1 to 3 feet
building to 3 to 5 feet. 
.thursday...southwest winds 15 to 20 knots becoming northwest
10 to 15 knots. 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 kcle 251935
glfle 
expires:202603260215;;285378

open lake forecast for lake erie
national weather service cleveland oh
335 pm edt wed mar 25 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 will continue to exit to the east
tonight before a strong cold front moves southeast across lake 
erie thursday evening. behind the cold front, another ridge 
averaging 30.40 inches will influence lake erie friday through 
the weekend. the ridge will exit to the east by monday.


lez162>164-260215-
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-
335 pm edt wed mar 25 2026

.tonight...south winds 10 to 15 knots becoming southwest. waves
2 feet or less. 
.thursday...southwest winds 10 to 15 knots becoming west. a
slight chance of showers early. a chance of showers and
thunderstorms late. waves 1 to 2 feet. 
.thursday night...northwest winds 15 to 20 knots becoming north.
rain showers with a chance of thunderstorms in the evening, then
rain showers overnight. waves 1 to 3 feet building to 3 to
5 feet. 
.friday...north winds 15 to 20 knots diminishing to 10 to
15 knots. a chance of rain showers in the morning. 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 subsiding to 1 foot or less. 
.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 northeast. a
chance of rain monday night. waves 1 to 3 feet. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 251935
glfle 
expires:202603260215;;285379

open lake forecast for lake erie
national weather service cleveland oh
335 pm edt wed mar 25 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 will continue to exit to the east
tonight before a strong cold front moves southeast across lake 
erie thursday evening. behind the cold front, another ridge 
averaging 30.40 inches will influence lake erie friday through 
the weekend. the ridge will exit to the east by monday.


lez165>167-260215-
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-
335 pm edt wed mar 25 2026

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

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 251935
glfle 
expires:202603260215;;285380

open lake forecast for lake erie
national weather service cleveland oh
335 pm edt wed mar 25 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 will continue to exit to the east
tonight before a strong cold front moves southeast across lake 
erie thursday evening. behind the cold front, another ridge 
averaging 30.40 inches will influence lake erie friday through 
the weekend. the ridge will exit to the east by monday.


lez061-168-169-260215-
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-
335 pm edt wed mar 25 2026

.tonight...southeast winds 5 to 15 knots becoming southwest. a
slight chance of rain showers after midnight. waves 1 to 3 feet. 
.thursday...southwest winds 10 to 15 knots. a slight chance of
rain showers late in the morning. a chance of rain showers early
in the afternoon, then rain showers with a slight chance of
thunderstorms late. waves 1 to 3 feet. 
.thursday night...northwest winds 10 to 15 knots becoming north
15 to 20 knots. rain showers. waves 1 to 3 feet. 
.friday...north winds 15 to 20 knots becoming northeast 10 to
15 knots. a chance of rain and snow showers in the morning. waves
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 becoming south 15 to
20 knots. waves 1 to 2 feet. 
.monday...southwest winds 15 to 20 knots becoming northeast 10 to
15 knots. a chance of rain monday night. waves 1 to 3 feet. 

winds and waves higher in and near thunderstorms.

$$

fzus63 kdtx 251947
glfsc 
expires:202603260400;;285679

lake st clair forecast
national weather service detroit/pontiac mi
347 pm edt wed mar 25 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, 29.70 inches, crosses the northern
great lakes mid-week resulting in a warm front lifting through
the central lakes. system eventually drags a cold front through
the region late thursday supporting showers and a few
potentially strong thunderstorms over the southern great lakes.
northerly winds strengthen going into friday as cold air returns.


lcz460-260400-
lake st clair-
347 pm edt wed mar 25 2026

.tonight...southwest winds 10 to 15 knots. partly cloudy. waves 2
feet or less.
.thursday...southwest winds 5 to 10 knots increasing to 10 to 15
knots late in the afternoon. partly sunny. a chance of light rain in
the afternoon. waves 2 feet or less.
.thursday night...north winds 15 to 20 knots. mostly cloudy. rain
likely . waves 1 to 3 feet.
.friday...north winds 15 to 20 knots diminishing to 10 to 15 knots
early in the afternoon. mostly cloudy early in the morning becoming
mostly 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 in the morning
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. waves 1 to 3
feet.

$$

fzus63 kdtx 251946
glflh 
expires:202603260400;;285675

open lake forecast for lake huron
national weather service detroit/pontiac mi
346 pm edt wed mar 25 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, 29.70 inches, crosses the northern
great lakes mid-week resulting in a warm front lifting through
the central lakes. system eventually drags a cold front through
the region late thursday supporting widespread showers and a few
potentially strong thunderstorms over the southern great lakes.
northerly winds strengthen going into friday as cold air returns.


lhz361-260400-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
346 pm edt wed mar 25 2026

.tonight...southeast winds 5 to 10 knots veering to the west
after midnight. waves 3 to 5 feet. 
.thursday...northwest winds 5 to 10 knots increasing to 10 to
15 knots late in the afternoon. a chance of rain and snow in the
afternoon. waves 1 to 3 feet building to 2 to 4 feet late in the
afternoon. 
.thursday night...northwest winds 10 to 15 knots becoming north
15 to 20 knots in the late evening and overnight. a chance of
rain and snow in the evening. waves 4 to 6 feet. waves
occasionally around 8 feet. 
.friday...north 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 decreasing to 10 to
15 knots late in the afternoon. waves 3 to 5 feet. 
.sunday...south winds 10 to 15 knots increasing to 15 to 20 knots
by midnight. waves 1 to 3 feet building to 3 to 5 feet . 
.monday...southwest winds 15 to 20 knots becoming northwest 10 to
15 knots. waves 3 to 5 feet subsiding to 2 to 4 feet . 

wave heights are for ice free areas.

$$

fzus63 kdtx 251946
glflh 
expires:202603260400;;285676

open lake forecast for lake huron
national weather service detroit/pontiac mi
346 pm edt wed mar 25 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, 29.70 inches, crosses the northern
great lakes mid-week resulting in a warm front lifting through
the central lakes. system eventually drags a cold front through
the region late thursday supporting widespread showers and a few
potentially strong thunderstorms over the southern great lakes.
northerly winds strengthen going into friday as cold air returns.


lhz362-363-260400-
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-
346 pm edt wed mar 25 2026

.tonight...south winds 15 to 20 knots becoming southwest 10 to
15 knots by midnight...then becoming west 5 to 10 knots early in
the morning. waves 3 to 5 feet. 
.thursday...west winds 5 to 10 knots becoming 10 to 15 knots late
in the afternoon. a chance of rain and snow in the afternoon.
waves 2 to 4 feet. 
.thursday night...north winds 10 to 15 knots increasing to 20 to
25 knots in the late evening and overnight. a chance of rain and
snow in the evening. waves 6 to 9 feet. waves occasionally around
12 feet. 
.friday...north winds 15 to 20 knots decreasing to 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 becoming northwest
15 to 20 knots in the late evening and overnight. 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. 
.sunday...south winds 15 to 20 knots increasing to 20 to 25 knots
by midnight. waves 4 to 6 feet. waves occasionally around 8 feet.
.monday...southwest winds 15 to 20 knots becoming west 10 to
15 knots early in the evening...then becoming northwest 15 to
20 knots by midnight. waves 5 to 7 feet. waves occasionally
around 10 feet. 


$$

fzus63 kdtx 251946
glflh 
expires:202603260400;;285677

open lake forecast for lake huron
national weather service detroit/pontiac mi
346 pm edt wed mar 25 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, 29.70 inches, crosses the northern
great lakes mid-week resulting in a warm front lifting through
the central lakes. system eventually drags a cold front through
the region late thursday supporting widespread showers and a few
potentially strong thunderstorms over the southern great lakes.
northerly winds strengthen going into friday as cold air returns.


lhz462>464-260400-
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-
346 pm edt wed mar 25 2026

.tonight...south winds 15 to 20 knots becoming southwest 10 to
15 knots after midnight. waves 2 to 4 feet. 
.thursday...west winds 5 to 10 knots veering to the north in the
afternoon. a chance of rain in the afternoon. waves 1 to 3 feet. 
.thursday night...north winds 10 to 15 knots increasing to 20 to
25 knots. rain likely in the evening. waves 4 to 6 feet building
to 8 to 12 feet in the late evening and overnight. waves
occasionally around 15 feet. 
.friday...north winds 20 to 25 knots decreasing to 15 to 20 knots
in the late morning and afternoon. 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. 
.sunday...southwest winds 10 to 15 knots becoming south 15 to
20 knots. waves 3 to 5 feet subsiding to 1 to 3 feet until early
evening...then building to 3 to 5 feet by midnight. 
.monday...southwest winds 15 to 20 knots becoming northwest 10 to
15 knots . a chance of. waves 3 to 5 feet. 

wave heights are for ice free areas.

$$

fzus63 kmkx 251955
glflm 
expires:202603260315;;285757

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
255 pm cdt wed mar 25 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...

southwesterly winds will continue through this evening, slowly
diminishing to light and variable tonight under a brief wave of
weak low pressure. low pressure of 29.5 inches developing in the 
central plains thursday will bring a wind shift of northerly as
strong high pressure of 30.7 inches builds over the canadian
prairies. increasing pressure gradient is expected to bring gales
to the southern two thirds of the open waters thursday afternoon
through thursday night. winds will gradually diminish into friday,
as high pressure builds into the northern plains and upper
mississippi valley. light and variable winds are expected into
saturday as high pressure moves east through the ohio valley.
winds return to southerly as high pressure exits sunday, with
southerly winds continuing through monday.


lmz261-362-364-563-260315-
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 pm cdt wed mar 25 2026

sturgeon bay wi to point betsie mi north...

.tonight...southwest winds 15 to 25 kt becoming west 10 to 20 kt
late this evening, then becoming north 10 to 15 kt overnight.
waves 4 to 7 ft occasionally to 9 ft subsiding to 3 to 5 ft. 
.thursday...north winds 5 to 10 kt increasing to 10 to 20 kt.
rain showers and slight chance of light freezing rain in the
morning, then chance of rain and snow showers in the afternoon.
patchy fog in the afternoon. waves 1 to 3 ft building to 3 to
5 ft. 
.thursday night...north winds to 30 kt becoming northeast 15 to
25 kt. waves 4 to 6 ft occasionally to 8 ft building to 5 to 8 ft
occasionally to 10 ft. 
.friday...north winds 10 to 20 kt backing to northwest 10 to
15 kt. waves 4 to 6 ft occasionally to 8 ft subsiding to 1 to
3 ft. 
.friday night...northwest winds 10 to 15 kt becoming west 10 to
20 kt. chance of snow in the evening. waves 1 to 3 ft.
.saturday...west winds 10 to 20 kt increasing to 15 to 25 kt.
waves 2 to 4 ft. 
.saturday night...southwest winds 10 to 20 kt. waves 3 to 5 ft
building to 4 to 6 ft occasionally to 8 ft. 
.sunday...south winds 15 to 25 kt. waves 6 to 9 ft occasionally
to 12 ft. 
.monday...northwest winds 15 to 25 kt becoming north 10 to 20 kt.
waves 5 to 8 ft occasionally to 10 ft subsiding to 3 to 5 ft.  

$$

fzus63 kmkx 251955
glflm 
expires:202603260315;;285758

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
255 pm cdt wed mar 25 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...

southwesterly winds will continue through this evening, slowly
diminishing to light and variable tonight under a brief wave of
weak low pressure. low pressure of 29.5 inches developing in the 
central plains thursday will bring a wind shift of northerly as
strong high pressure of 30.7 inches builds over the canadian
prairies. increasing pressure gradient is expected to bring gales
to the southern two thirds of the open waters thursday afternoon
through thursday night. winds will gradually diminish into friday,
as high pressure builds into the northern plains and upper
mississippi valley. light and variable winds are expected into
saturday as high pressure moves east through the ohio valley.
winds return to southerly as high pressure exits sunday, with
southerly winds continuing through monday.


lmz366-565-567-868-260315-
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 pm cdt wed mar 25 2026

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

...gale warning in effect from thursday afternoon through late
thursday night...

.tonight...south winds 15 to 25 kt becoming southwest late this
evening, then becoming northwest 10 to 15 kt after midnight
becoming north late. waves 4 to 7 ft occasionally to 9 ft
subsiding to 3 to 5 ft. 
.thursday...northeast winds 10 to 15 kt becoming north 15 to
25 kt. chance of rain showers. waves 1 to 3 ft building to 3 to
5 ft. 
.thursday night...north gales to 35 kt diminishing to 30 kt.
waves 5 to 8 ft occasionally to 10 ft building to 8 to 11 ft
occasionally to 14 ft. 
.friday...north winds 15 to 25 kt becoming northwest 10 to 20 kt.
waves 5 to 8 ft occasionally to 10 ft subsiding to 3 to 5 ft. 
.friday night...west winds 10 to 15 kt becoming northwest. waves
1 to 3 ft. 
.saturday...west winds 10 to 20 kt becoming southwest. waves 2 to
4 ft. 
.saturday night...south winds 10 to 20 kt becoming southwest.
waves 3 to 5 ft building to 4 to 7 ft occasionally to 9 ft.
.sunday...south winds to 30 kt diminishing to 15 to 25 kt. waves
6 to 9 ft occasionally to 12 ft. 
.monday...northwest winds 15 to 25 kt becoming northeast 10 to
20 kt. waves 5 to 8 ft occasionally to 10 ft subsiding to 4 to
7 ft occasionally to 9 ft.  

$$

fzus63 kmkx 251955
glflm 
expires:202603260315;;285759

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
255 pm cdt wed mar 25 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...

southwesterly winds will continue through this evening, slowly
diminishing to light and variable tonight under a brief wave of
weak low pressure. low pressure of 29.5 inches developing in the 
central plains thursday will bring a wind shift of northerly as
strong high pressure of 30.7 inches builds over the canadian
prairies. increasing pressure gradient is expected to bring gales
to the southern two thirds of the open waters thursday afternoon
through thursday night. winds will gradually diminish into friday,
as high pressure builds into the northern plains and upper
mississippi valley. light and variable winds are expected into
saturday as high pressure moves east through the ohio valley.
winds return to southerly as high pressure exits sunday, with
southerly winds continuing through monday.


lmz080-669-671-673-675-777-779-870-872-874-876-878-260315-
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 pm cdt wed mar 25 2026

sheboygan wi to pentwater mi south...

...gale warning in effect from thursday afternoon through late
thursday night...

.tonight...south winds 15 to 25 kt becoming southwest 10 to
15 kt. waves 4 to 6 ft occasionally to 8 ft subsiding to 2 to
4 ft. 
.thursday...south winds 5 to 10 kt veering to north 10 to 15 kt
late in the morning, then increasing to 10 to 20 kt early in the
afternoon increasing to 30 kt late. patchy fog in the afternoon.
rain showers and slight chance of thunderstorms in the afternoon.
waves 2 to 4 ft building to 4 to 6 ft occasionally to 8 ft. 
.thursday night...north gales to 35 kt. rain showers with a
chance of rain in the evening. waves 6 to 9 ft occasionally to
12 ft building to 8 to 12 ft occasionally to 16 ft. 
.friday...north winds to 30 kt diminishing to 10 to 20 kt in the
afternoon. waves 8 to 11 ft occasionally to 14 ft subsiding to
5 to 8 ft occasionally to 10 ft. 
.friday night...northwest winds 10 to 15 kt. waves 3 to 5 ft
subsiding to 2 to 4 ft. 
.saturday...west winds 10 to 20 kt becoming southwest. waves 2 to
4 ft. 
.saturday night...south winds 10 to 20 kt. waves 3 to 5 ft
building to 4 to 7 ft occasionally to 9 ft. 
.sunday...south winds 15 to 25 kt. waves 5 to 8 ft occasionally
to 10 ft. 
.monday...west winds 15 to 25 kt veering to north 10 to 20 kt.
waves 5 to 8 ft occasionally to 10 ft subsiding to 4 to 7 ft
occasionally to 9 ft.  

$$

fzus63 kmqt 252001
glfls 
expires:202603260800;;285993

open lake forecast for lake superior
national weather service marquette mi
400 pm edt wed mar 25 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 extending over lake superior will slowly shift 
south and east tonight as an 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. on sunday night a 29.8 inch trough will move over lake, 
with ridging of 30.2 inches making its way back into the area by 
monday night.



lsz265-260800-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
400 pm edt wed mar 25 2026

.late this afternoon...northwest winds 10 to 20 knots. waves 1 to
3 feet subsiding to calm to 2 feet. 
.tonight...north winds 10 to 20 knots. waves building to 2 to
4 feet. 
.thursday...north winds 15 to 25 knots increasing to 20 to
30 knots late. a slight chance of sleet through early afternoon.
a slight chance of snow showers. freezing spray by mid afternoon.
waves building to 3 to 5 feet occasionally to 7 feet. 
.thursday night...north winds 15 to 25 knots diminishing to 10 to
20 knots late. freezing spray through midnight. waves building to
3 to 6 feet occasionally to 8 feet. 
.friday...northwest winds 10 to 20 knots increasing to 20 to
30 knots by mid afternoon. a slight chance of snow showers. waves
subsiding to 1 to 3 feet, then building to 2 to 4 feet. 
.friday night...northwest winds 20 to 30 knots. waves 2 to
4 feet. 
.saturday...west winds 20 to 30 knots diminishing to 15 to
25 knots by mid afternoon. waves subsiding to calm to 2 feet. 
.saturday night...south winds 10 to 20 knots. waves calm to
2 feet. 
.sunday...south winds 15 to 25 knots. waves building to 3 to
5 feet occasionally to 7 feet. 
.monday...north winds 15 to 25 knots veering east. waves
subsiding to calm to 2 feet, then building to 3 to 6 feet
occasionally to 8 feet. 

$$

fzus63 kmqt 252001
glfls 
expires:202603260800;;285994

open lake forecast for lake superior
national weather service marquette mi
400 pm edt wed mar 25 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 extending over lake superior will slowly shift 
south and east tonight as an 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. on sunday night a 29.8 inch trough will move over lake, 
with ridging of 30.2 inches making its way back into the area by 
monday night.



lsz266-260800-
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-
400 pm edt wed mar 25 2026

.late this afternoon...south winds 10 to 20 knots. a slight
chance of rain showers. waves 2 to 4 feet. 
.tonight...north winds 10 to 20 knots. waves subsiding to 1 to
3 feet, then building to 3 to 5 feet occasionally to 7 feet. 
.thursday...northeast winds 15 to 25 knots backing north in the
afternoon, then increasing to 20 to 30 knots late. a slight
chance of snow showers. freezing spray by mid afternoon. waves
subsiding to 2 to 4 feet, then building to 3 to 5 feet
occasionally to 7 feet. 
.thursday night...north winds 20 to 30 knots diminishing to 15 to
25 knots late. freezing spray. waves building to 3 to 6 feet
occasionally to 8 feet. 
.friday...northwest winds 10 to 20 knots increasing to 15 to
25 knots by mid afternoon. a slight chance of snow showers. waves
subsiding to 2 to 4 feet, then building to 3 to 5 feet
occasionally to 7 feet. 
.friday night...northwest winds 20 to 30 knots. freezing spray. a
chance of snow showers. waves building to 5 to 8 feet
occasionally to 10 feet. 
.saturday...west winds 20 to 30 knots diminishing to 15 to
25 knots by mid afternoon. freezing spray. waves subsiding to
3 to 5 feet occasionally to 7 feet. 
.saturday night...southwest winds 10 to 20 knots becoming south
15 to 25 knots after midnight. waves subsiding to 1 to 3 feet,
then building to 2 to 4 feet. 
.sunday...south winds 15 to 25 knots increasing to 20 to
30 knots. waves building to 5 to 8 feet occasionally to 10 feet. 
.monday...north winds 20 to 30 knots veering east. waves
subsiding to 2 to 4 feet, then building to 3 to 6 feet
occasionally to 8 feet. 

$$

fzus63 kmqt 252001
glfls 
expires:202603260800;;285995

open lake forecast for lake superior
national weather service marquette mi
400 pm edt wed mar 25 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 extending over lake superior will slowly shift 
south and east tonight as an 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. on sunday night a 29.8 inch trough will move over lake, 
with ridging of 30.2 inches making its way back into the area by 
monday night.



lsz267-260800-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
400 pm edt wed mar 25 2026

.late this afternoon...south winds 10 to 20 knots. a slight
chance of rain showers. waves 1 to 3 feet subsiding to calm to
2 feet. 
.tonight...northwest winds 10 to 20 knots diminishing to 5 to
15 knots after midnight, then becoming north 10 to 20 knots late.
waves building to 2 to 4 feet. 
.thursday...northeast winds 10 to 20 knots backing north in the
afternoon, then increasing to 15 to 25 knots late. a slight
chance of snow showers. waves subsiding to 1 to 3 feet, then
building to 2 to 4 feet. 
.thursday night...north winds 20 to 30 knots diminishing to 15 to
25 knots after midnight, then becoming northeast 10 to 20 knots
late. freezing spray. waves building to 3 to 6 feet occasionally
to 8 feet, then subsiding to 2 to 4 feet. 
.friday...northeast winds 5 to 15 knots becoming northwest 15 to
25 knots by mid afternoon. a slight chance of snow showers by mid
afternoon. waves subsiding to calm to 2 feet, then building to
3 to 5 feet occasionally to 7 feet. 
.friday night...northwest winds 15 to 25 knots. freezing spray. a
chance of snow showers through midnight. snow showers likely
after midnight. waves building to 5 to 8 feet occasionally to
10 feet. 
.saturday...west winds 15 to 25 knots. freezing spray. waves
subsiding to 3 to 6 feet occasionally to 8 feet. 
.saturday night...west winds 10 to 20 knots backing south after
midnight. waves subsiding to 1 to 3 feet, then building to 2 to
4 feet. 
.sunday...south winds 10 to 20 knots increasing to 20 to
30 knots. waves building to 5 to 8 feet occasionally to 10 feet. 
.monday...northwest winds 15 to 25 knots veering east. waves
subsiding to 2 to 4 feet, then building to 3 to 5 feet
occasionally to 7 feet. 

$$

fzus63 kmqt 252001
glfls 
expires:202603260800;;285992

open lake forecast for lake superior
national weather service marquette mi
400 pm edt wed mar 25 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 extending over lake superior will slowly shift 
south and east tonight as an 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. on sunday night a 29.8 inch trough will move over lake, 
with ridging of 30.2 inches making its way back into the area by 
monday night.



lsz264-260800-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
400 pm edt wed mar 25 2026

.late this afternoon...north winds 5 to 15 knots. a slight chance
of rain and snow showers. waves 2 to 4 feet. 
.tonight...north winds 10 to 20 knots veering northeast after
midnight. a slight chance of snow showers after midnight. waves
building to 3 to 5 feet occasionally to 7 feet, then subsiding to
2 to 4 feet. 
.thursday...northeast winds 10 to 20 knots backing north late.
freezing spray by mid afternoon. waves subsiding to 2 to 4 feet. 
.thursday night...north winds 10 to 20 knots. waves building to
3 to 5 feet occasionally to 7 feet, then subsiding to 1 to
3 feet. 
.friday...northwest winds 5 to 15 knots becoming west 15 to
25 knots by mid afternoon. a slight chance of snow showers by mid
afternoon. waves subsiding to calm to 2 feet, then building to
2 to 4 feet. 
.friday night...northwest winds 15 to 25 knots. freezing spray
through midnight. waves building to 3 to 6 feet occasionally to
8 feet. 
.saturday...west winds 15 to 25 knots diminishing to 10 to
20 knots by mid afternoon. waves subsiding to 1 to 3 feet. 
.saturday night...southwest winds 5 to 15 knots backing south
after midnight. waves subsiding to calm to 2 feet. 
.sunday...south winds 5 to 15 knots becoming northwest 20 to
30 knots. waves building to 3 to 6 feet occasionally to 8 feet. 
.monday...north winds 15 to 25 knots veering east. waves
subsiding to calm to 2 feet, then building to 3 to 6 feet
occasionally to 8 feet. 

$$

fzus63 kmqt 252001
glfls 
expires:202603260800;;285991

open lake forecast for lake superior
national weather service marquette mi
400 pm edt wed mar 25 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 extending over lake superior will slowly shift 
south and east tonight as an 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. on sunday night a 29.8 inch trough will move over lake, 
with ridging of 30.2 inches making its way back into the area by 
monday night.



lsz263-260800-
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 pm edt wed mar 25 2026

.late this afternoon...north winds 5 to 15 knots. waves 1 to
3 feet subsiding to calm to 2 feet. 
.tonight...northeast winds 10 to 20 knots. a slight chance of
snow showers after midnight. waves building to 2 to 4 feet. 
.thursday...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. 
.thursday night...northeast winds 10 to 20 knots becoming north
5 to 15 knots late. a slight chance of snow showers after
midnight. waves subsiding to 1 to 3 feet. 
.friday...northwest winds 5 to 15 knots becoming west 10 to
20 knots by mid afternoon. a slight chance of snow showers. waves
subsiding to calm to 2 feet, then 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...south winds 5 to 15 knots. waves calm to
2 feet. 
.sunday...south winds 5 to 15 knots becoming northwest 15 to
25 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 252001
glfls 
expires:202603260800;;285990

open lake forecast for lake superior
national weather service marquette mi
400 pm edt wed mar 25 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 extending over lake superior will slowly shift 
south and east tonight as an 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. on sunday night a 29.8 inch trough will move over lake, 
with ridging of 30.2 inches making its way back into the area by 
monday night.



lsz162-260800-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
400 pm edt wed mar 25 2026 /300 pm cdt wed mar 25 2026/

.late this afternoon...north winds 5 to 15 knots. waves calm to
2 feet. 
.tonight...northeast winds 5 to 15 knots veering east after
midnight, then becoming northeast 10 to 20 knots late. a chance
of rain showers, freezing rain and snow showers after midnight.
waves building to 2 to 4 feet. 
.thursday...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. 
.thursday night...northeast winds 10 to 20 knots backing north
after midnight, then veering northeast late. a slight chance of
snow showers after midnight. waves subsiding to calm to 2 feet,
then building to 1 to 3 feet. 
.friday...northwest winds 10 to 20 knots. a chance of snow
showers. waves building to 1 to 3 feet. 
.friday night...northwest winds 15 to 25 knots becoming west
10 to 20 knots after midnight. waves subsiding to calm to 2 feet.
.saturday...west winds 10 to 20 knots becoming southwest 5 to
15 knots by mid afternoon. waves calm to 2 feet. 
.saturday night...southeast winds 5 to 15 knots backing east
after midnight. waves calm to 2 feet. 
.sunday...south winds 5 to 15 knots becoming north 10 to
20 knots. waves calm to 2 feet. 
.monday...north winds 5 to 15 knots becoming east 15 to 25 knots.
waves building to 3 to 6 feet occasionally to 8 feet. 

$$