fzus61 kbuf 242009
glflo 
expires:202603250300;;234979

open lake forecast for lake ontario
national weather service buffalo ny
409 pm edt tue mar 24 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 30.4 inch high centered over the ohio valley will 
drift off the mid atlantic coast tonight. a weak 29.7 inch low over 
the central great lakes wednesday night 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.


loz065-250300-
lake ontario open waters from mexico bay to the saint lawrence
river-
409 pm edt tue mar 24 2026

.tonight...west winds 5 to 15 knots. waves 1 to 3 feet. 
.wednesday...north winds 10 knots or less becoming east. waves
2 feet or less. 
.wednesday night...east winds 5 to 15 knots becoming south. a
chance of rain showers overnight. waves 1 to 3 feet. 
.thursday...south winds 10 to 15 knots becoming southwest. a
chance of rain showers in the morning, then rain showers likely
in the afternoon. waves 1 to 3 feet. 
.thursday night...southwest winds 10 to 15 knots becoming north
15 to 20 knots. rain showers likely in the evening, then rain
showers likely with a chance of snow 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 snow showers during the day. waves 3 to
5 feet subsiding to 2 feet or less. 
.saturday...northwest winds 10 to 15 knots becoming west and
increasing to 15 to 25 knots. waves 2 feet or less building to
4 to 7 feet. waves occasionally around 9 feet. 
.sunday...west winds 15 to 20 knots becoming south. waves 3 to
6 feet. 

$$

fzus61 kbuf 242009
glflo 
expires:202603250300;;234978

open lake forecast for lake ontario
national weather service buffalo ny
409 pm edt tue mar 24 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 30.4 inch high centered over the ohio valley will 
drift off the mid atlantic coast tonight. a weak 29.7 inch low over 
the central great lakes wednesday night 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.


loz063-064-250300-
lake ontario open waters from hamlin beach to mexico bay-
409 pm edt tue mar 24 2026

.tonight...west winds 5 to 15 knots. waves 1 to 3 feet. 
.wednesday...west winds 10 knots or less becoming east. waves
2 feet or less. 
.wednesday night...east winds 5 to 15 knots becoming south. a
chance of rain showers overnight. waves 1 to 3 feet. 
.thursday...south winds 10 to 15 knots becoming southwest. a
chance of rain showers in the morning, then rain showers likely
in the afternoon. waves 1 to 3 feet. 
.thursday night...west winds 10 to 15 knots becoming northwest
15 to 20 knots. rain showers likely in the evening, then rain
showers likely with a chance of snow showers overnight. waves
2 to 4 feet building to 3 to 6 feet. 
.friday...north winds 15 to 20 knots. a chance of snow showers
during the day. waves 3 to 6 feet subsiding to 1 to 3 feet. 
.saturday...west winds 15 to 25 knots. waves 2 to 4 feet building
to 5 to 8 feet. waves occasionally around 10 feet. 
.sunday...west winds 15 to 20 knots becoming southwest. waves
3 to 6 feet. 

$$

fzus61 kbuf 242009
glflo 
expires:202603250300;;234977

open lake forecast for lake ontario
national weather service buffalo ny
409 pm edt tue mar 24 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 30.4 inch high centered over the ohio valley will 
drift off the mid atlantic coast tonight. a weak 29.7 inch low over 
the central great lakes wednesday night 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.


loz062-250300-
lake ontario open waters from the niagara river to hamlin beach-
409 pm edt tue mar 24 2026

.tonight...southwest winds 5 to 15 knots. waves 1 to 3 feet. 
.wednesday...south winds 10 knots or less becoming east. waves
1 foot or less. 
.wednesday night...east winds 10 to 15 knots becoming south. a
chance of rain showers overnight. waves 1 to 2 feet. 
.thursday...southwest winds 10 to 15 knots increasing to 15 to
20 knots. a chance of showers in the morning, then showers likely
in the afternoon. waves 1 to 3 feet. 
.thursday night...west winds 10 to 15 knots becoming northwest
15 to 20 knots. rain showers likely. waves 2 to 4 feet. 
.friday...north winds 15 to 20 knots becoming northwest 10 to
15 knots. waves 3 to 5 feet subsiding to 2 to 4 feet. 
.saturday...west winds 15 to 20 knots. waves 2 to 4 feet building
to 3 to 6 feet. 
.sunday...west winds 15 to 20 knots becoming southwest. waves
3 to 5 feet. 

$$

fzus61 kcle 241926
glfle 
expires:202603250215;;233349

open lake forecast for lake erie
national weather service cleveland oh
326 pm edt tue mar 24 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 high pressure ridge averaging 30.40 inches exits slowly eastward
through thursday afternoon, which will allow a warm front to sweep
northward across lake erie late this morning. during thursday
evening, a strong cold front is expected to sweep southeastward
across lake erie. behind the front, a ridge averaging 30.20 inches
is expected to impact lake erie through saturday as the embedded
high pressure center wobbles southeastward from the northern great
plains toward the central appalachians.


lez162>164-250215-
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-
326 pm edt tue mar 24 2026

.tonight...southeast winds 10 knots or less becoming south. waves
1 foot or less. 
.wednesday...south winds 5 to 10 knots becoming southeast. waves
1 foot or less. 
.wednesday night...south winds 10 to 15 knots becoming southwest.
waves 2 feet or less. 
.thursday...southwest winds 10 to 15 knots. showers likely in the
afternoon. waves 1 to 2 feet. 
.thursday night...west winds 10 to 15 knots becoming north 15 to
20 knots. rain showers likely. waves 1 to 3 feet building to 3 to
5 feet. 
.friday...north winds 15 to 20 knots diminishing to 5 to
15 knots. waves 3 to 5 feet subsiding to 1 to 3 feet. 
.saturday...west winds 10 to 15 knots becoming southwest. waves
2 feet or less. 
.sunday...southwest winds 5 to 15 knots increasing to 15 to
20 knots. waves 1 to 2 feet. 

$$

fzus61 kcle 241926
glfle 
expires:202603250215;;233350

open lake forecast for lake erie
national weather service cleveland oh
326 pm edt tue mar 24 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 high pressure ridge averaging 30.40 inches exits slowly eastward
through thursday afternoon, which will allow a warm front to sweep
northward across lake erie late this morning. during thursday
evening, a strong cold front is expected to sweep southeastward
across lake erie. behind the front, a ridge averaging 30.20 inches
is expected to impact lake erie through saturday as the embedded
high pressure center wobbles southeastward from the northern great
plains toward the central appalachians.


lez165>167-250215-
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-
326 pm edt tue mar 24 2026

.tonight...south winds 10 knots or less. waves 1 foot or less. 
.wednesday...south winds 5 to 10 knots becoming southeast. waves
1 foot or less. 
.wednesday night...southeast winds 5 to 15 knots becoming
southwest. waves 1 to 3 feet. 
.thursday...southwest winds 10 to 15 knots. showers likely in the
afternoon. waves 1 to 3 feet. 
.thursday night...west winds 10 to 15 knots becoming north 15 to
20 knots. rain showers likely 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. waves 3 to 6 feet subsiding to 1 to 3 feet. 
.saturday...west winds 15 to 20 knots diminishing to 10 to
15 knots. waves 1 to 3 feet. 
.sunday...southwest winds 5 to 15 knots increasing to 15 to
20 knots. waves 2 to 4 feet. 

$$

fzus61 kcle 241926
glfle 
expires:202603250215;;233351

open lake forecast for lake erie
national weather service cleveland oh
326 pm edt tue mar 24 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 high pressure ridge averaging 30.40 inches exits slowly eastward
through thursday afternoon, which will allow a warm front to sweep
northward across lake erie late this morning. during thursday
evening, a strong cold front is expected to sweep southeastward
across lake erie. behind the front, a ridge averaging 30.20 inches
is expected to impact lake erie through saturday as the embedded
high pressure center wobbles southeastward from the northern great
plains toward the central appalachians.


lez061-168-169-250215-
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-
326 pm edt tue mar 24 2026

.tonight...southwest winds 10 knots or less becoming south. waves
2 feet or less. 
.wednesday...south winds less than 10 knots becoming east. waves
1 foot or less. 
.wednesday night...southeast winds 5 to 10 knots becoming
southwest. waves 2 feet or less. 
.thursday...southwest winds 10 to 15 knots. showers likely in the
afternoon. waves 2 feet or less. 
.thursday night...southwest winds 10 to 15 knots becoming north.
rain showers likely. waves 1 to 3 feet building to 2 to 4 feet. 
.friday...north winds 5 to 15 knots becoming northwest. waves
1 to 3 feet. 
.saturday...west winds 5 to 15 knots. waves 1 to 3 feet. 
.sunday...southwest winds 5 to 15 knots. waves 1 to 3 feet. 

$$

fzus63 kdtx 241933
glfsc 
expires:202603250345;;233443

lake st clair forecast
national weather service detroit/pontiac mi
333 pm edt tue mar 24 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.
there is a low chance for a few hour period thursday night for
gusts to reach gales.


lcz460-250345-
lake st clair-
333 pm edt tue mar 24 2026

.tonight...south winds 5 to 10 knots becoming light and variable.
mostly cloudy becoming partly cloudy by midnight becoming mostly
cloudy. waves 2 feet or less.
.wednesday...south winds 5 to 10 knots. mostly cloudy. waves 2 feet
or less.
.wednesday night...south winds 10 to 15 knots. mostly cloudy. waves
2 feet or less.
.thursday...southwest winds 10 to 15 knots. mostly cloudy. light
rain likely early in the afternoon. waves 2 feet or less.
.thursday night...north winds 15 to 20 knots. mostly cloudy. light
rain likely early in the evening...then a chance of light rain by
midnight. waves 1 to 3 feet.
.friday...north winds 15 to 20 knots diminishing to 10 to 15 knots
in the evening. mostly cloudy becoming mostly sunny in the afternoon
becoming clear. waves 1 to 3 feet.
.saturday...west winds 15 to 20 knots. mostly clear. waves 2 feet or
less.
.sunday...south winds 15 to 20 knots. partly cloudy. waves 2 feet or
less.

$$

fzus63 kdtx 241932
glflh 
expires:202603250345;;233441

open lake forecast for lake huron
national weather service detroit/pontiac mi
332 pm edt tue mar 24 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.
there is a low chance for a few hour period thursday night for
gusts to reach gales.


lhz462>464-250345-
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-
332 pm edt tue mar 24 2026

.tonight...southwest winds 5 to 10 knots early in the evening
becoming light and variable...then becoming east 5 to 10 knots
early in the morning. waves 2 feet or less. 
.wednesday...southeast winds 5 to 10 knots increasing to 10 to
15 knots in the afternoon. waves 1 to 3 feet. 
.wednesday night...south winds 10 to 15 knots. waves 2 to 4 feet.
.thursday...southwest winds 10 to 15 knots. rain likely in the
afternoon. waves 1 to 3 feet. 
.thursday night...north winds 15 to 20 knots increasing to 20 to
25 knots with gusts to around 30 knots in the late evening and
overnight. rain likely in the evening. freezing spray after
midnight. 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 with gusts to around
30 knots decreasing to 15 to 20 knots late in the morning...then
decreasing to 10 to 15 knots late in the afternoon backing to the
west late in the evening. freezing spray. waves 8 to 12 feet
subsiding to 3 to 5 feet late in the afternoon. waves
occasionally around 15 feet. 
.saturday...west winds 15 to 20 knots decreasing to 10 to
15 knots . waves 3 to 5 feet. 
.sunday...southwest winds 10 to 15 knots backing to the south
until early evening...then increasing to 15 to 20 knots by
midnight. waves 3 to 5 feet. 


$$

fzus63 kdtx 241932
glflh 
expires:202603250345;;233440

open lake forecast for lake huron
national weather service detroit/pontiac mi
332 pm edt tue mar 24 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.
there is a low chance for a few hour period thursday night for
gusts to reach gales.


lhz362-363-250345-
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-
332 pm edt tue mar 24 2026

.tonight...west winds 5 to 10 knots early in the evening becoming
light and variable...then becoming northeast 5 to 10 knots early
in the morning. waves 3 to 5 feet subsiding to 1 to 3 feet in the
late evening and overnight. 
.wednesday...east winds 5 to 10 knots becoming southeast 10 to
15 knots in the late morning and afternoon. waves 1 to 3 feet
building to 2 to 4 feet in the late morning and afternoon. 
.wednesday night...southeast winds 10 to 15 knots veering to the
southwest after midnight. waves 2 to 4 feet. 
.thursday...southwest winds 10 to 15 knots veering to the west
early in the afternoon. a chance of rain. waves 2 to 4 feet
building to 3 to 5 feet early in the afternoon. 
.thursday night...northwest winds 20 to 25 knots with gusts to
around 30 knots veering to the north with gusts to around
30 knots after midnight. freezing spray after midnight. waves
6 to 9 feet. waves occasionally around 12 feet. 
.friday...north winds 15 to 20 knots decreasing to 10 to 15 knots
late in the morning...then becoming west 15 to 20 knots late in
the evening. freezing spray in the morning. waves 6 to 9 feet
subsiding to 3 to 5 feet late in the afternoon. waves
occasionally around 12 feet. 
.saturday...west winds 15 to 20 knots increasing to 20 to
25 knots in the late morning and early afternoon...then becoming
northwest 15 to 20 knots . waves 6 to 9 feet. waves occasionally
around 12 feet. 
.sunday...west winds 15 to 20 knots backing to the south until
early evening...then increasing to 20 to 25 knots by midnight.
waves 5 to 7 feet. waves occasionally around 10 feet. 


$$

fzus63 kdtx 241932
glflh 
expires:202603250345;;233439

open lake forecast for lake huron
national weather service detroit/pontiac mi
332 pm edt tue mar 24 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.
there is a low chance for a few hour period thursday night for
gusts to reach gales.


lhz361-250345-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
332 pm edt tue mar 24 2026

.tonight...west winds 5 to 10 knots in the evening becoming light
and variable...then becoming northeast 5 to 10 knots early in the
morning. waves 1 to 3 feet. 
.wednesday...east winds 5 to 10 knots becoming southeast 10 to
15 knots in the late morning and afternoon. a chance of rain in
the afternoon. waves 1 to 3 feet building to 2 to 4 feet in the
late morning and afternoon. 
.wednesday night...southeast winds 5 to 10 knots veering to the
southwest after midnight. waves 2 to 4 feet subsiding to 1 to
3 feet after midnight. 
.thursday...southwest winds 5 to 10 knots becoming west 10 to
15 knots in the late morning and early afternoon...then veering
to the northwest early in the afternoon. a chance of rain in the
morning...then a chance of rain and snow in the afternoon. waves
1 to 3 feet building to 2 to 4 feet early in the afternoon. 
.thursday night...northwest winds 15 to 20 knots veering to the
north after midnight. waves 3 to 5 feet. 
.friday...north winds 10 to 15 knots decreasing to 5 to 10 knots
late in the morning...then becoming west 10 to 15 knots 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. 
.saturday...west winds 15 to 20 knots decreasing to 10 to
15 knots by midnight. waves 3 to 5 feet. 
.sunday...west winds 10 to 15 knots backing to the south until
early evening...then becoming southwest 15 to 20 knots by
midnight. waves 2 to 4 feet building to 3 to 5 feet . 

wave heights are for ice free areas.

$$

fzus63 kmkx 241942
glflm 
expires:202603250315;;233798

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
242 pm cdt tue mar 24 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 of 30.4 inches over the northeast u.s. and high
pressure of 30.5 inches pressing into ontario as low pressure
develops in the lee of the central rockies, keeping winds
southwesterly through this evening. winds will weaken and shift
to become south-southeasterly tonight as high pressure builds 
into the hudson bay. southerly winds then increase into
wednesday, becoming breezy. weak low pressure of 29.7 inches will
progress through the upper peninsula of michigan wednesday 
night, shifting winds to southwesterly and allowing them to
diminish. tuesday morning, a cold front from this low will drag
southward through the lake. winds behind the front will become
northerly and strong. gales are becoming more likely thursday
afternoon through thursday night for the southern two-thirds of
the lake. winds gradually diminish through friday, with high
pressure bringing light and variable winds friday night.
saturday, southwesterly winds develop again as high pressure
sits over the eastern seaboard and low pressure develops in the
central plains.


lmz080-669-671-673-675-777-779-870-872-874-876-878-250315-
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-
242 pm cdt tue mar 24 2026

sheboygan wi to pentwater mi south...

.tonight...southeast winds 10 to 15 kt becoming south. waves 2 to
4 ft subsiding to 1 to 3 ft. 
.wednesday...south winds 10 to 15 kt increasing to 10 to 20 kt.
waves 3 to 5 ft. 
.wednesday night...south winds 10 to 20 kt diminishing to 10 to
15 kt. waves 3 to 5 ft subsiding to 2 to 4 ft. 
.thursday...southwest winds 10 to 15 kt veering to northwest
10 to 20 kt. chance of rain in the afternoon. waves 1 to 3 ft
building to 4 to 6 ft occasionally to 8 ft. 
.thursday night...north gales to 35 kt. chance of rain in the
evening. waves 10 to 14 ft occasionally to 18 ft. 
.friday...north winds to 30 kt diminishing to 15 to 25 kt. waves
8 to 12 ft occasionally to 16 ft subsiding to 5 to 8 ft
occasionally to 10 ft. 
.friday night...northwest winds 10 to 20 kt becoming west. waves
3 to 5 ft. 
.saturday...west winds 10 to 20 kt becoming southwest. waves 4 to
6 ft occasionally to 8 ft. 
.sunday...south winds 15 to 25 kt. waves 4 to 7 ft occasionally
to 9 ft.  

$$

fzus63 kmkx 241942
glflm 
expires:202603250315;;233797

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
242 pm cdt tue mar 24 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 of 30.4 inches over the northeast u.s. and high
pressure of 30.5 inches pressing into ontario as low pressure
develops in the lee of the central rockies, keeping winds
southwesterly through this evening. winds will weaken and shift
to become south-southeasterly tonight as high pressure builds 
into the hudson bay. southerly winds then increase into
wednesday, becoming breezy. weak low pressure of 29.7 inches will
progress through the upper peninsula of michigan wednesday 
night, shifting winds to southwesterly and allowing them to
diminish. tuesday morning, a cold front from this low will drag
southward through the lake. winds behind the front will become
northerly and strong. gales are becoming more likely thursday
afternoon through thursday night for the southern two-thirds of
the lake. winds gradually diminish through friday, with high
pressure bringing light and variable winds friday night.
saturday, southwesterly winds develop again as high pressure
sits over the eastern seaboard and low pressure develops in the
central plains.


lmz261-362-364-366-563-565-567-868-250315-
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-
242 pm cdt tue mar 24 2026

sheboygan wi to pentwater mi north...

.tonight...south winds 10 to 15 kt becoming southeast. waves 2 to
4 ft subsiding to 1 to 3 ft. 
.wednesday...south winds 10 to 15 kt increasing to 10 to 20 kt.
slight chance of light freezing rain in the morning, then chance
of rain in the afternoon. waves 3 to 5 ft. 
.wednesday night...south winds 10 to 20 kt diminishing to 10 to
15 kt. waves 3 to 5 ft subsiding to 2 to 4 ft. 
.thursday...west winds 10 to 20 kt veering to north 15 to 25 kt.
chance of rain in the morning, then chance of rain and snow in
the afternoon. waves 1 to 3 ft building to 4 to 6 ft occasionally
to 8 ft. 
.thursday night...north winds to 30 kt. waves 8 to 11 ft
occasionally to 14 ft. 
.friday...north winds to 30 kt becoming northwest 10 to 20 kt in
the afternoon. waves 6 to 9 ft occasionally to 12 ft subsiding to
4 to 6 ft occasionally to 8 ft. 
.friday night...west winds 10 to 15 kt increasing to 10 to 20 kt.
waves 1 to 3 ft building to 3 to 5 ft. 
.saturday...west winds 15 to 25 kt. waves 4 to 6 ft occasionally
to 8 ft. 
.sunday...south winds 15 to 25 kt. waves 4 to 7 ft occasionally
to 9 ft.  

$$

fzus63 kmqt 242001
glfls 
expires:202603250800;;234350

open lake forecast for lake superior
national weather service marquette mi
400 pm edt tue mar 24 2026

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

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

.synopsis...

30.3 inch ridging is over the lake this evening associated with high 
pressure of 30.5 inches over northern ontario. a clipper low around 
29.7 inches phases with a shortwave low lifting off of the northern 
rockies, bringing troughing of at least 29.8 inches back across lake 
superior by wednesday. a secondary 29.6 inch low moves over the 
upper great lakes wednesday night into thursday. by friday, 
expansive ridging of 30.7 inches builds over the great plains, 
shifting over the mississippi river valley by saturday morning and 
south of the great lakes by that evening. the high shifts over the 
east coast for sunday at 30.6 inches as low pressure develops west 
of the great lakes in its wake.



lsz265-250800-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
400 pm edt tue mar 24 2026

.late this afternoon...northeast winds 10 to 20 knots. waves 1 to
3 feet subsiding to calm to 2 feet. 
.tonight...east winds 10 to 20 knots veering southeast after
midnight. a chance of snow showers after midnight. waves building
to 2 to 4 feet. 
.wednesday...southeast winds 10 to 20 knots diminishing to 5 to
15 knots in the afternoon. a chance of snow showers, possibly
mixed with rain. waves subsiding to calm to 2 feet. 
.wednesday night...south winds 5 to 15 knots veering northwest
after midnight, then becoming north 10 to 20 knots late. a slight
chance of rain showers and freezing rain after midnight. waves
calm to 2 feet. 
.thursday...north winds 20 to 30 knots. a slight chance of snow
showers, possibly mixed with rain through early afternoon.
freezing spray by mid afternoon. waves building to 6 to 9 feet
occasionally to 11 feet. 
.thursday night...north winds 20 to 30 knots diminishing to 15 to
25 knots after midnight. freezing spray. waves subsiding to 3 to
6 feet occasionally to 8 feet. 
.friday...northwest winds 15 to 25 knots becoming west 20 to
30 knots by mid afternoon. waves subsiding to 2 to 4 feet. 
.friday night...west winds 20 to 30 knots increasing to gales to
35 knots after midnight. waves building to 3 to 6 feet
occasionally to 8 feet. 
.saturday...northwest winds 20 to 30 knots becoming west 15 to
25 knots. waves subsiding to 1 to 3 feet. 
.sunday...south winds 15 to 25 knots becoming west 20 to
30 knots. waves building to 2 to 4 feet, then subsiding to 1 to
3 feet. 

$$

fzus63 kmqt 242001
glfls 
expires:202603250800;;234351

open lake forecast for lake superior
national weather service marquette mi
400 pm edt tue mar 24 2026

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

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

.synopsis...

30.3 inch ridging is over the lake this evening associated with high 
pressure of 30.5 inches over northern ontario. a clipper low around 
29.7 inches phases with a shortwave low lifting off of the northern 
rockies, bringing troughing of at least 29.8 inches back across lake 
superior by wednesday. a secondary 29.6 inch low moves over the 
upper great lakes wednesday night into thursday. by friday, 
expansive ridging of 30.7 inches builds over the great plains, 
shifting over the mississippi river valley by saturday morning and 
south of the great lakes by that evening. the high shifts over the 
east coast for sunday at 30.6 inches as low pressure develops west 
of the great lakes in its wake.



lsz266-250800-
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 tue mar 24 2026

.late this afternoon...north winds 10 to 20 knots. waves 3 to
5 feet occasionally to 7 feet subsiding to 2 to 4 feet. 
.tonight...east winds 10 to 20 knots veering southeast after
midnight. a chance of snow showers after midnight. waves
subsiding to calm to 2 feet, then building to 2 to 4 feet. 
.wednesday...south winds 15 to 25 knots diminishing to 10 to
20 knots late. a chance of snow showers, possibly mixed with
rain. waves building to 3 to 6 feet occasionally to 8 feet, then
subsiding to 2 to 4 feet. 
.wednesday night...south winds 10 to 20 knots veering west after
midnight. a slight chance of rain showers. a slight chance of
freezing rain and snow showers after midnight. waves subsiding to
1 to 3 feet. 
.thursday...north winds 20 to 30 knots increasing to gales to
35 knots by mid afternoon. a chance of rain and snow showers
through early afternoon. freezing spray by mid afternoon. waves
building to 6 to 9 feet occasionally to 11 feet. 
.thursday night...north gales to 35 knots diminishing to 15 to
25 knots after midnight. freezing spray. waves building to 7 to
10 feet occasionally to 13 feet, then subsiding to 3 to 6 feet
occasionally to 8 feet. 
.friday...northwest winds 15 to 25 knots increasing to 20 to
30 knots by mid afternoon. freezing spray by mid afternoon. waves
subsiding to 2 to 4 feet, then building to 3 to 6 feet
occasionally to 8 feet. 
.friday night...west winds 20 to 30 knots veering northwest after
midnight. freezing spray. waves building to 7 to 10 feet
occasionally to 13 feet. 
.saturday...northwest winds 20 to 30 knots becoming west 15 to
25 knots. freezing spray. waves building to 8 to 11 feet
occasionally to 14 feet, then subsiding to 3 to 6 feet
occasionally to 8 feet. 
.sunday...south winds 15 to 25 knots becoming west 20 to
30 knots. waves subsiding to 3 to 5 feet occasionally to 7 feet,
then building to 6 to 9 feet occasionally to 11 feet. 

$$

fzus63 kmqt 242001
glfls 
expires:202603250800;;234352

open lake forecast for lake superior
national weather service marquette mi
400 pm edt tue mar 24 2026

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

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

.synopsis...

30.3 inch ridging is over the lake this evening associated with high 
pressure of 30.5 inches over northern ontario. a clipper low around 
29.7 inches phases with a shortwave low lifting off of the northern 
rockies, bringing troughing of at least 29.8 inches back across lake 
superior by wednesday. a secondary 29.6 inch low moves over the 
upper great lakes wednesday night into thursday. by friday, 
expansive ridging of 30.7 inches builds over the great plains, 
shifting over the mississippi river valley by saturday morning and 
south of the great lakes by that evening. the high shifts over the 
east coast for sunday at 30.6 inches as low pressure develops west 
of the great lakes in its wake.



lsz267-250800-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
400 pm edt tue mar 24 2026

.late this afternoon...northwest winds 10 to 20 knots. waves 3 to
5 feet occasionally to 7 feet subsiding to 2 to 4 feet. 
.tonight...north winds 5 to 15 knots veering east after midnight,
then becoming southeast 10 to 20 knots late. a slight chance of
snow showers after midnight. waves subsiding to calm to 2 feet,
then building to 1 to 3 feet. 
.wednesday...southeast winds 15 to 25 knots diminishing to 10 to
20 knots late. a chance of snow showers. a chance of rain showers
by mid afternoon. waves building to 3 to 5 feet occasionally to
7 feet, then subsiding to 2 to 4 feet. 
.wednesday night...south winds 10 to 20 knots diminishing to 5 to
15 knots after midnight, then becoming southwest 10 to 20 knots
late. a slight chance of snow showers through midnight. a slight
chance of rain showers. a slight chance of freezing rain after
midnight. waves subsiding to calm to 2 feet. 
.thursday...northwest winds 15 to 25 knots becoming north 20 to
30 knots by mid afternoon. a chance of rain and snow showers
through early afternoon. freezing spray by mid afternoon. waves
building to 5 to 8 feet occasionally to 10 feet. 
.thursday night...north winds 20 to 30 knots diminishing to 15 to
25 knots after midnight. freezing spray. waves subsiding to 3 to
5 feet occasionally to 7 feet. 
.friday...north winds 10 to 20 knots becoming northwest 15 to
25 knots by mid afternoon. freezing spray by mid afternoon. waves
subsiding to 1 to 3 feet, then building to 3 to 6 feet
occasionally to 8 feet. 
.friday night...northwest winds 15 to 25 knots increasing to
20 to 30 knots after midnight. freezing spray. waves building to
7 to 10 feet occasionally to 13 feet. 
.saturday...northwest winds 20 to 30 knots diminishing to 15 to
25 knots. freezing spray. waves building to 8 to 11 feet
occasionally to 14 feet, then subsiding to 3 to 6 feet
occasionally to 8 feet. 
.sunday...south winds 15 to 25 knots increasing to 20 to
30 knots. waves subsiding to 3 to 5 feet occasionally to 7 feet,
then building to 6 to 9 feet occasionally to 11 feet. 

$$

fzus63 kmqt 242001
glfls 
expires:202603250800;;234348

open lake forecast for lake superior
national weather service marquette mi
400 pm edt tue mar 24 2026

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

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

.synopsis...

30.3 inch ridging is over the lake this evening associated with high 
pressure of 30.5 inches over northern ontario. a clipper low around 
29.7 inches phases with a shortwave low lifting off of the northern 
rockies, bringing troughing of at least 29.8 inches back across lake 
superior by wednesday. a secondary 29.6 inch low moves over the 
upper great lakes wednesday night into thursday. by friday, 
expansive ridging of 30.7 inches builds over the great plains, 
shifting over the mississippi river valley by saturday morning and 
south of the great lakes by that evening. the high shifts over the 
east coast for sunday at 30.6 inches as low pressure develops west 
of the great lakes in its wake.



lsz263-250800-
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 tue mar 24 2026

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

$$

fzus63 kmqt 242001
glfls 
expires:202603250800;;234347

open lake forecast for lake superior
national weather service marquette mi
400 pm edt tue mar 24 2026

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

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

.synopsis...

30.3 inch ridging is over the lake this evening associated with high 
pressure of 30.5 inches over northern ontario. a clipper low around 
29.7 inches phases with a shortwave low lifting off of the northern 
rockies, bringing troughing of at least 29.8 inches back across lake 
superior by wednesday. a secondary 29.6 inch low moves over the 
upper great lakes wednesday night into thursday. by friday, 
expansive ridging of 30.7 inches builds over the great plains, 
shifting over the mississippi river valley by saturday morning and 
south of the great lakes by that evening. the high shifts over the 
east coast for sunday at 30.6 inches as low pressure develops west 
of the great lakes in its wake.



lsz162-250800-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
400 pm edt tue mar 24 2026 /300 pm cdt tue mar 24 2026/

.late this afternoon...east winds 5 to 15 knots. waves calm to
2 feet. 
.tonight...east winds 10 to 20 knots diminishing to 5 to 15 knots
after midnight. a chance of freezing rain, rain and snow showers
after midnight. waves building to 2 to 4 feet, then subsiding to
1 to 3 feet. 
.wednesday...east winds 5 to 15 knots backing northeast in the
afternoon. a slight chance of rain showers, freezing rain and
snow showers through early afternoon. waves subsiding to calm to
2 feet. 
.wednesday night...east winds 5 to 15 knots backing northeast
late. a chance of rain showers, possibly mixed with freezing rain
and snow showers after midnight. waves calm to 2 feet. 
.thursday...north winds 10 to 20 knots increasing to 15 to
25 knots by mid afternoon. a slight chance of rain and snow
showers through early afternoon. waves building to 1 to 3 feet. 
.thursday night...north winds 10 to 20 knots. waves subsiding to
calm to 2 feet. 
.friday...northwest winds 10 to 20 knots backing west by mid
afternoon. waves building to 1 to 3 feet. 
.friday night...west winds 15 to 25 knots. waves building to 2 to
4 feet, then subsiding to 1 to 3 feet. 
.saturday...west winds 10 to 20 knots becoming east 5 to
15 knots. waves subsiding to calm to 2 feet. 
.sunday...southeast winds 5 to 15 knots becoming north 10 to
20 knots. waves calm to 2 feet. 

$$

fzus63 kmqt 242001
glfls 
expires:202603250800;;234349

open lake forecast for lake superior
national weather service marquette mi
400 pm edt tue mar 24 2026

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

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

.synopsis...

30.3 inch ridging is over the lake this evening associated with high 
pressure of 30.5 inches over northern ontario. a clipper low around 
29.7 inches phases with a shortwave low lifting off of the northern 
rockies, bringing troughing of at least 29.8 inches back across lake 
superior by wednesday. a secondary 29.6 inch low moves over the 
upper great lakes wednesday night into thursday. by friday, 
expansive ridging of 30.7 inches builds over the great plains, 
shifting over the mississippi river valley by saturday morning and 
south of the great lakes by that evening. the high shifts over the 
east coast for sunday at 30.6 inches as low pressure develops west 
of the great lakes in its wake.



lsz264-250800-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
400 pm edt tue mar 24 2026

.late this afternoon...northeast winds 5 to 15 knots. waves 1 to
3 feet subsiding to calm to 2 feet. 
.tonight...east winds 5 to 15 knots veering southeast after
midnight, then increasing to 10 to 20 knots late. a chance of
snow showers. waves building to 2 to 4 feet. 
.wednesday...southeast winds 10 to 20 knots becoming east 5 to
15 knots late. a chance of snow showers, possibly mixed with
rain. waves building to 3 to 6 feet occasionally to 8 feet, then
subsiding to 2 to 4 feet. 
.wednesday night...northeast winds 5 to 15 knots. a slight chance
of rain showers, freezing rain and snow showers. waves subsiding
to 1 to 3 feet. 
.thursday...north winds 15 to 25 knots increasing to 20 to
30 knots by mid afternoon. a slight chance of snow showers
through early afternoon. freezing spray by mid afternoon. waves
building to 3 to 6 feet occasionally to 8 feet. 
.thursday night...north winds 15 to 25 knots. freezing spray
through midnight. waves subsiding to 1 to 3 feet. 
.friday...northwest winds 10 to 20 knots becoming west 15 to
25 knots by mid afternoon. waves building to 3 to 5 feet
occasionally to 7 feet. 
.friday night...northwest winds 20 to 30 knots. freezing spray.
waves building to 4 to 7 feet occasionally to 9 feet. 
.saturday...west winds 20 to 30 knots diminishing to 10 to
20 knots. freezing spray. waves subsiding to 2 to 4 feet. 
.sunday...south winds 10 to 20 knots increasing to 20 to
30 knots. waves subsiding to 1 to 3 feet, then building to 3 to
6 feet occasionally to 8 feet. 

$$