fzus61 kbuf 272009
glflo 
expires:202603280300;;396382

open lake forecast for lake ontario
national weather service buffalo ny
409 pm edt fri mar 27 2026

for waters beyond five nautical miles of shore on lake ontario

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

.synopsis...a strong 30.6 inch high will build from the upper 
mississippi valley tonight to the ohio valley by saturday afternoon, 
then off the mid atlantic coast sunday. a 30.0 inch trough will sag 
southward across eastern canada monday, then move across the eastern 
great lakes monday night, followed by a deeper 29.5 inch low tuesday 
night into early wednesday.


loz063-064-280300-
lake ontario open waters from hamlin beach to mexico bay-
409 pm edt fri mar 27 2026

.tonight...northwest winds 5 to 15 knots becoming north. waves
1 to 3 feet. 
.saturday...northwest winds 15 to 25 knots becoming west. a
chance of snow showers in the morning. waves 1 to 3 feet building
to 5 to 8 feet. waves occasionally around 10 feet. 
.saturday night...west winds 15 to 20 knots becoming southwest
10 to 15 knots. waves 4 to 7 feet subsiding to 2 to 4 feet. waves
occasionally around 9 feet. 
.sunday...south winds 15 to 20 knots becoming southwest 10 to
15 knots. waves 2 to 4 feet subsiding to 1 to 3 feet. 
.sunday night...southwest winds 10 to 15 knots. waves 1 to
3 feet. 
.monday...southwest winds 5 to 15 knots becoming southeast 15 to
20 knots. a chance of rain showers monday night. waves 1 to
3 feet. 
.tuesday...south winds 15 to 25 knots becoming southwest.
showers. waves 3 to 6 feet building to 5 to 8 feet. waves
occasionally around 10 feet. 
.wednesday...west winds 15 to 25 knots becoming north. rain
showers during the day, then a chance of rain and snow showers
wednesday night. waves 5 to 8 feet subsiding to 3 to 6 feet.
waves occasionally around 10 feet. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kbuf 272009
glflo 
expires:202603280300;;396383

open lake forecast for lake ontario
national weather service buffalo ny
409 pm edt fri mar 27 2026

for waters beyond five nautical miles of shore on lake ontario

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

.synopsis...a strong 30.6 inch high will build from the upper 
mississippi valley tonight to the ohio valley by saturday afternoon, 
then off the mid atlantic coast sunday. a 30.0 inch trough will sag 
southward across eastern canada monday, then move across the eastern 
great lakes monday night, followed by a deeper 29.5 inch low tuesday 
night into early wednesday.


loz065-280300-
lake ontario open waters from mexico bay to the saint lawrence
river-
409 pm edt fri mar 27 2026

.tonight...northwest winds 5 to 10 knots becoming north. waves
2 feet or less. 
.saturday...northwest winds 5 to 10 knots becoming west and
increasing to 15 to 20 knots. a chance of snow showers late in
the morning. waves 2 feet or less building to 4 to 7 feet. waves
occasionally around 9 feet. 
.saturday night...west winds 15 to 20 knots becoming southwest
10 to 15 knots. waves 4 to 7 feet subsiding to 2 to 4 feet. waves
occasionally around 9 feet. 
.sunday...south winds 15 to 20 knots becoming southwest 10 to
15 knots. waves 2 to 4 feet subsiding to 1 to 3 feet. 
.sunday night...southwest winds 10 to 15 knots. waves 1 to
3 feet. 
.monday...southwest winds 5 to 10 knots becoming southeast and
increasing to 15 to 20 knots. a chance of rain showers monday
night. waves 1 to 3 feet. 
.tuesday...southeast winds 15 to 25 knots becoming southwest.
showers. waves 3 to 6 feet building to 5 to 8 feet. waves
occasionally around 10 feet. 
.wednesday...west winds 15 to 25 knots becoming north. rain
showers during the day, then a chance of rain and snow showers
wednesday night. waves 5 to 8 feet subsiding to 2 to 4 feet.
waves occasionally around 10 feet. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kbuf 272009
glflo 
expires:202603280300;;396381

open lake forecast for lake ontario
national weather service buffalo ny
409 pm edt fri mar 27 2026

for waters beyond five nautical miles of shore on lake ontario

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

.synopsis...a strong 30.6 inch high will build from the upper 
mississippi valley tonight to the ohio valley by saturday afternoon, 
then off the mid atlantic coast sunday. a 30.0 inch trough will sag 
southward across eastern canada monday, then move across the eastern 
great lakes monday night, followed by a deeper 29.5 inch low tuesday 
night into early wednesday.


loz062-280300-
lake ontario open waters from the niagara river to hamlin beach-
409 pm edt fri mar 27 2026

.tonight...west winds 5 to 10 knots becoming northwest 10 to
15 knots. waves 1 to 3 feet. 
.saturday...west winds 15 to 25 knots. waves 2 to 3 feet building
to 3 to 6 feet. 
.saturday night...west winds 15 to 20 knots becoming southwest.
waves 2 to 4 feet. 
.sunday...southwest winds 15 to 20 knots. waves 2 to 4 feet. 
.sunday night...southwest winds 15 to 20 knots diminishing to
10 to 15 knots. waves 2 to 4 feet. 
.monday...southwest winds 5 to 10 knots becoming southeast and
increasing to 15 to 20 knots. rain showers likely monday night.
waves 1 to 3 feet. 
.tuesday...south winds to 30 knots becoming southwest. showers
with a chance of thunderstorms. waves 3 to 5 feet building to
5 to 8 feet. waves occasionally around 10 feet. 
.wednesday...west winds 15 to 25 knots becoming northeast. rain
showers likely during the day, then a chance of rain and snow
showers wednesday night. waves 5 to 8 feet subsiding to 3 to
6 feet. waves occasionally around 10 feet. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 272005
glfle 
expires:202603280215;;396229

open lake forecast for lake erie
national weather service cleveland oh
405 pm edt fri mar 27 2026

for waters beyond five nautical miles of shore on lake erie

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

.synopsis...
a ridge averaging 30.50 inches will build in across the region and 
eastward off the east coast through sunday night. a cold front will 
waver to the north of lake erie early next week before moving south 
across the lake on wednesday.


lez165>167-280215-
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-
405 pm edt fri mar 27 2026

.tonight...north winds 5 to 10 knots becoming northwest. a slight
chance of snow showers late. waves 1 to 3 feet. 
.saturday...northwest winds 5 to 15 knots becoming southwest. a
slight chance of snow showers early. waves 1 to 2 feet. 
.saturday night...southwest winds 5 to 15 knots becoming south.
waves 1 to 3 feet. 
.sunday...southwest winds 15 to 20 knots diminishing to 10 to
15 knots. waves 1 to 3 feet. 
.sunday night...southwest winds 10 to 15 knots. waves 1 to
3 feet. 
.monday...southwest winds 10 to 15 knots becoming south and
increasing to 15 to 25 knots. rain likely with a chance of
thunderstorms monday night. waves 1 to 3 feet building to 2 to
4 feet. 
.tuesday...southwest winds 15 to 25 knots. rain likely. waves
3 to 5 feet building to 4 to 7 feet. waves occasionally around
9 feet. 
.wednesday...northwest winds 15 to 25 knots becoming northeast.
rain likely during the day, then a chance of rain and snow
wednesday night. waves 5 to 8 feet subsiding to 3 to 6 feet.
waves occasionally around 10 feet. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 272005
glfle 
expires:202603280215;;396228

open lake forecast for lake erie
national weather service cleveland oh
405 pm edt fri mar 27 2026

for waters beyond five nautical miles of shore on lake erie

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

.synopsis...
a ridge averaging 30.50 inches will build in across the region and 
eastward off the east coast through sunday night. a cold front will 
waver to the north of lake erie early next week before moving south 
across the lake on wednesday.


lez162>164-280215-
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-
405 pm edt fri mar 27 2026

.tonight...north winds 5 to 15 knots becoming northwest. a slight
chance of snow showers late. waves 2 feet or less. 
.saturday...northwest winds 5 to 15 knots becoming southwest.
waves 2 feet or less. 
.saturday night...south winds 5 to 15 knots becoming southwest.
waves 2 feet or less. 
.sunday...southwest winds 15 to 20 knots diminishing to 10 to
15 knots. waves 1 to 2 feet. 
.sunday night...southwest winds 10 to 15 knots. waves 1 to
2 feet. 
.monday...southwest winds 10 to 15 knots increasing to 15 to
25 knots. a chance of rain and thunderstorms monday night. waves
1 to 3 feet. 
.tuesday...southwest winds 20 to 25 knots becoming west. a chance
of rain during the day, then rain likely tuesday night. waves
1 to 3 feet building to 3 to 5 feet. 
.wednesday...northwest winds 15 to 25 knots becoming northeast. a
chance of rain during the day, then a chance of rain and snow
wednesday night. waves 3 to 5 feet building to 3 to 6 feet. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 272005
glfle 
expires:202603280215;;396230

open lake forecast for lake erie
national weather service cleveland oh
405 pm edt fri mar 27 2026

for waters beyond five nautical miles of shore on lake erie

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

.synopsis...
a ridge averaging 30.50 inches will build in across the region and 
eastward off the east coast through sunday night. a cold front will 
waver to the north of lake erie early next week before moving south 
across the lake on wednesday.


lez061-168-169-280215-
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-
405 pm edt fri mar 27 2026

.tonight...northwest winds 5 to 10 knots. waves 2 feet or less. 
.saturday...northwest winds 10 to 15 knots becoming west. a
slight chance of snow showers early. waves 2 feet or less
building to 2 to 4 feet. 
.saturday night...southwest winds 10 to 15 knots becoming south.
waves 2 to 4 feet subsiding to 1 to 2 feet. 
.sunday...south winds 10 to 15 knots becoming southwest. waves
1 to 3 feet. 
.sunday night...southwest winds 10 to 15 knots. waves 1 to
2 feet. 
.monday...southwest winds 5 to 10 knots becoming south and
increasing to 15 to 20 knots. rain likely with a chance of
thunderstorms monday night. waves 2 feet or less. 
.tuesday...southwest winds 15 to 25 knots. rain likely. waves
1 to 3 feet building to 3 to 5 feet. 
.wednesday...west winds 15 to 20 knots becoming northeast. rain
likely during the day, then a chance of rain and snow wednesday
night. waves 3 to 6 feet subsiding to 2 to 4 feet. 

winds and waves higher in and near thunderstorms.

$$

fzus63 kdtx 271934
glflh 
expires:202603280345;;394984

open lake forecast for lake huron
national weather service detroit/pontiac mi
334 pm edt fri mar 27 2026

for waters beyond five nautical miles off shore on lake huron

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

.synopsis...high pressure influence leads to weaker winds this
evening. a weak cold front brings widely scattered snow showers
to the central great lakes overnight, offering a reinforcing shot
of blustery conditions through saturday morning. winds and waves
then remain in-check with dry and warmer weather sunday and
monday. an extended window for showers and thunderstorms exists
late monday through tuesday. winds and waves trend higher tuesday
with the arrival of a low pressure system.


lhz362-363-280345-
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-
334 pm edt fri mar 27 2026

.tonight...north winds 5 to 10 knots backing to the southwest
late in the evening...then becoming northwest 15 to 20 knots
after midnight. waves 1 to 3 feet building to 5 to 7 feet. waves
occasionally around 10 feet. 
.saturday...northwest winds 15 to 20 knots becoming west 10 to
15 knots in the late morning and afternoon. waves 4 to 6 feet.
waves occasionally around 8 feet. 
.saturday night...southwest winds 10 to 15 knots increasing to
15 to 20 knots after midnight. waves 3 to 5 feet. 
.sunday...southwest winds 15 to 20 knots decreasing to 10 to
15 knots in the late morning and afternoon. waves 3 to 5 feet. 
.sunday night...south winds 10 to 15 knots. waves 2 to 4 feet. 
.monday...southwest winds 5 to 10 knots becoming east 10 to
15 knots late in the afternoon...then increasing to 15 to
20 knots late in the evening. a chance of rain late in the
afternoon. waves 1 to 3 feet building to 4 to 6 feet late in the
evening. waves occasionally around 8 feet. 
.tuesday...east winds 20 to 25 knots becoming north 15 to
20 knots early in the evening...then increasing to 20 to 25 knots
with gusts to around 30 knots by midnight. rain likely and a
chance of thunderstorms. a chance of snow . waves 6 to 9 feet.
waves occasionally around 12 feet. 
.wednesday...northwest winds to 30 knots becoming north 20 to
25 knots with gusts to around 30 knots in the late morning and
early afternoon...then becoming northwest 15 to 20 knots early in
the evening becoming north 20 to 25 knots by midnight. a chance
of rain and snow early in the morning. waves 6 to 9 feet. waves
occasionally around 12 feet. 


$$

fzus63 kdtx 271934
glflh 
expires:202603280345;;394983

open lake forecast for lake huron
national weather service detroit/pontiac mi
334 pm edt fri mar 27 2026

for waters beyond five nautical miles off shore on lake huron

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

.synopsis...high pressure influence leads to weaker winds this
evening. a weak cold front brings widely scattered snow showers
to the central great lakes overnight, offering a reinforcing shot
of blustery conditions through saturday morning. winds and waves
then remain in-check with dry and warmer weather sunday and
monday. an extended window for showers and thunderstorms exists
late monday through tuesday. winds and waves trend higher tuesday
with the arrival of a low pressure system.


lhz361-280345-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
334 pm edt fri mar 27 2026

.tonight...west winds 10 to 15 knots becoming northwest 15 to
20 knots by midnight...then decreasing to 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. 
.saturday...west winds 10 to 15 knots increasing to 15 to
20 knots in the late morning and afternoon. waves 2 to 4 feet. 
.saturday night...southwest winds 10 to 15 knots. waves 1 to
3 feet. 
.sunday...southwest winds 10 to 15 knots decreasing to 5 to
10 knots early in the afternoon. waves 1 to 3 feet. 
.sunday night...north winds 5 to 10 knots backing to the south by
midnight...then veering to the west after midnight. waves 2 feet
or less. 
.monday...west winds 5 to 10 knots veering to the north late in
the morning...then becoming east 10 to 15 knots late in the
afternoon increasing to 15 to 20 knots late in the evening. a
chance of rain and snow late in the afternoon. rain likely and a
chance of snow late in the evening. waves 1 to 3 feet building to
3 to 5 feet late in the evening. 
.tuesday...east winds 15 to 20 knots backing to the northeast
early in the evening...then becoming north 20 to 25 knots by
midnight. rain likely. a chance of snow. a chance of rain by
midnight. waves 4 to 6 feet. 
.wednesday...north winds 20 to 25 knots decreasing to 15 to
20 knots in the late morning and early afternoon...then becoming
northwest 10 to 15 knots early in the evening becoming north
15 to 20 knots by midnight. a chance of rain and snow early in
the morning. waves 4 to 6 feet. waves occasionally around 8 feet.

wave heights are for ice free areas.

$$

fzus63 kdtx 271934
glfsc 
expires:202603280345;;394987

lake st clair forecast
national weather service detroit/pontiac mi
334 pm edt fri mar 27 2026

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

.synopsis...high pressure influence leads to weaker winds this
evening. a weak cold front brings widely scattered snow showers
to the central great lakes overnight, offering a reinforcing shot
of blustery conditions through saturday morning. winds and waves
then remain in-check with dry and warmer weather sunday and
monday. an extended window for showers and thunderstorms exists
late monday through tuesday. winds and waves trend higher tuesday
with the arrival of a low pressure system.


lcz460-280345-
lake st clair-
334 pm edt fri mar 27 2026

.tonight...north winds 10 to 15 knots becoming northeast 5 to 10
knots late in the evening...then backing to the northwest after
midnight increasing to 10 to 15 knots early in the morning. partly
cloudy. waves 2 feet or less.
.saturday...northwest winds 10 to 15 knots becoming west 5 to 10
knots in the late morning and early afternoon...then backing to the
southwest late in the afternoon. mostly sunny. waves 2 feet or less.
.saturday night...southwest winds 10 to 15 knots. partly cloudy
early in the evening becoming mostly cloudy. waves 2 feet or less.
.sunday...southwest winds 10 to 15 knots. mostly cloudy. waves 1 to
3 feet.
.sunday night...southwest winds 10 to 15 knots diminishing to 5 to
10 knots after midnight. partly cloudy. waves 2 feet or less.
.monday...southwest winds 5 to 10 knots becoming south 15 to 20
knots. partly sunny...then partly cloudy with a chance of light rain
and thunderstorms in the evening. waves 2 feet or less.
.tuesday...southwest winds 20 to 25 knots. mostly cloudy with light
rain likely and a chance of thunderstorms. waves 2 to 4 feet.
.wednesday...north winds 20 to 25 knots. mostly cloudy. light rain
likely and a chance of light snow. waves 1 to 3 feet.

$$

fzus63 kdtx 271934
glflh 
expires:202603280345;;394985

open lake forecast for lake huron
national weather service detroit/pontiac mi
334 pm edt fri mar 27 2026

for waters beyond five nautical miles off shore on lake huron

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

.synopsis...high pressure influence leads to weaker winds this
evening. a weak cold front brings widely scattered snow showers
to the central great lakes overnight, offering a reinforcing shot
of blustery conditions through saturday morning. winds and waves
then remain in-check with dry and warmer weather sunday and
monday. an extended window for showers and thunderstorms exists
late monday through tuesday. winds and waves trend higher tuesday
with the arrival of a low pressure system.


lhz462>464-280345-
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-
334 pm edt fri mar 27 2026

.tonight...north winds 5 to 10 knots backing to the west after
midnight...then becoming northwest 15 to 20 knots early in the
morning. waves 2 to 4 feet subsiding to 1 to 3 feet late in the
evening...then building to 2 to 4 feet after midnight building to
4 to 6 feet early in the morning. waves occasionally around
8 feet. 
.saturday...northwest winds 15 to 20 knots becoming west 10 to
15 knots in the late morning and afternoon. waves 3 to 5 feet. 
.saturday night...southwest winds 10 to 15 knots becoming south
15 to 20 knots after midnight. waves 1 to 3 feet building to 3 to
5 feet in the late evening and overnight. 
.sunday...southwest winds 15 to 20 knots decreasing to 10 to
15 knots in the late morning and afternoon. waves 3 to 5 feet. 
.sunday night...southwest winds 10 to 15 knots. waves 1 to
3 feet. 
.monday...southwest winds 5 to 10 knots becoming east 10 to
15 knots late in the afternoon...then becoming southeast 15 to
20 knots late in the evening. a chance of rain late in the
afternoon. rain likely and a chance of thunderstorms late in the
evening. waves 1 to 3 feet building to 3 to 5 feet late in the
evening. 
.tuesday...south winds 15 to 20 knots becoming west 20 to
25 knots by midnight. rain likely and a chance of thunderstorms.
waves 5 to 7 feet. waves occasionally around 10 feet. 
.wednesday...northwest winds 20 to 25 knots with gusts to around
30 knots veering to the north . a chance of rain and snow until
afternoon. waves 8 to 12 feet. waves occasionally around 15 feet.


$$

fzus63 kmkx 271917
glflm 
expires:202603280330;;394666

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
217 pm cdt fri mar 27 2026

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

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

.synopsis...

lighter winds expected this evening as the high pressure around 
30.8 inches slowly builds into the upper midwest from the plains
overnight into saturday. winds will gradually back to southerly 
into saturday afternoon, as high pressure skirts southeast of 
lake michigan while low pressure around 29.7 inches develops in 
the lee of the colorado rockies. winds may shift to the north and 
northeast on monday as a warm front sets up to the south of the 
region, but expecting to increase and turn more southerly for 
tuesday. thunderstorm chances increase for tuesday as well. 


lmz261-362-364-366-563-565-567-868-280330-
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-
217 pm cdt fri mar 27 2026

sheboygan wi to pentwater mi north...

.tonight...northwest winds 15 to 25 kt diminishing to 10 to
20 kt. scattered snow showers this evening. waves 3 to 5 ft
building to 5 to 8 ft occasionally to 10 ft, then subsiding to
4 to 6 ft occasionally to 8 ft. 
.saturday...west winds 10 to 20 kt becoming southwest 15 to 25 kt
early in the afternoon, then increasing to 30 kt late. waves 3 to
5 ft building to 4 to 7 ft occasionally to 9 ft. 
.saturday night...south winds to 30 kt becoming southwest. waves
6 to 9 ft occasionally to 12 ft. 
.sunday...southwest winds 15 to 25 kt becoming south 10 to 20 kt.
waves 4 to 7 ft occasionally to 9 ft subsiding to 4 to 6 ft
occasionally to 8 ft. 
.sunday night...south winds 10 to 15 kt becoming west. waves 3 to
5 ft. 
.monday...northeast winds 10 to 15 kt. waves 2 to 4 ft. 
.monday night...east winds 15 to 25 kt becoming southeast. chance
of rain and thunderstorms. waves 3 to 5 ft building to 4 to 7 ft
occasionally to 9 ft. 
.tuesday...southeast winds 15 to 25 kt backing to north. chance
of rain and thunderstorms. waves 7 to 10 ft occasionally to
13 ft. 
.wednesday...north winds to 30 kt. waves 8 to 11 ft occasionally
to 14 ft.  

$$

fzus63 kmkx 271917
glflm 
expires:202603280330;;394667

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
217 pm cdt fri mar 27 2026

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

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

.synopsis...

lighter winds expected this evening as the high pressure around 
30.8 inches slowly builds into the upper midwest from the plains
overnight into saturday. winds will gradually back to southerly 
into saturday afternoon, as high pressure skirts southeast of 
lake michigan while low pressure around 29.7 inches develops in 
the lee of the colorado rockies. winds may shift to the north and 
northeast on monday as a warm front sets up to the south of the 
region, but expecting to increase and turn more southerly for 
tuesday. thunderstorm chances increase for tuesday as well. 


lmz080-669-671-673-675-777-779-870-872-874-876-878-280330-
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-
217 pm cdt fri mar 27 2026

sheboygan wi to pentwater mi south...

.tonight...northwest winds 15 to 25 kt diminishing to 10 to
20 kt. isolated snow showers this evening. waves 3 to 5 ft
building to 5 to 8 ft occasionally to 10 ft. 
.saturday...northwest winds 10 to 15 kt becoming west late in the
morning, then becoming southwest 10 to 20 kt early in the
afternoon becoming south 15 to 25 kt late. waves 4 to 7 ft
occasionally to 9 ft subsiding to 4 to 6 ft occasionally to 8 ft.
.saturday night...south winds 15 to 25 kt becoming southwest.
waves 4 to 7 ft occasionally to 9 ft. 
.sunday...southwest winds 15 to 25 kt becoming south 10 to 20 kt.
waves 4 to 7 ft occasionally to 9 ft subsiding to 4 to 6 ft
occasionally to 8 ft. 
.sunday night...south winds 10 to 20 kt diminishing to 10 to
15 kt. waves 3 to 5 ft. 
.monday...south winds 10 to 15 kt backing to northeast. waves
2 to 4 ft. 
.monday night...south winds 15 to 25 kt increasing to 30 kt.
chance of rain and thunderstorms. waves 4 to 6 ft occasionally to
8 ft building to 5 to 8 ft occasionally to 10 ft. 
.tuesday...southwest winds to 30 kt. rain likely with a chance of
thunderstorms. waves 6 to 9 ft occasionally to 12 ft. 
.wednesday...north winds to 30 kt. waves 10 to 14 ft occasionally
to 18 ft.  

$$

fzus63 kmqt 272001
glfls 
expires:202603280800;;395835

open lake forecast for lake superior
national weather service marquette mi
400 pm edt fri mar 27 2026

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

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

.synopsis...

30.6 inch high pressure slides from the northern plains into the 
ohio river valley today through saturday. the high weakens to 30.5 
inches as it continues eastward, moving offshore into the atlantic 
sunday. upstream on sunday, a 29.6 inch low will organize over the 
central plains, lifting a 30.0 inch trough over lake superior by 
sunday night. this trough will linger over the great lakes, followed 
by the low tuesday. as the low lifts into canada, 30.3 inch high 
pressure builds over the northern plains, gradually building 
pressure over the upper great lakes by wednesday as the high presses 
east through ontario near 30.5 inches.



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

.late this afternoon...northwest winds to 30 knots with a few
gale force gusts to 35 knots possible. freezing spray. scattered
snow showers. waves 4 to 8 feet occasionally to 10 feet. 
.tonight...northwest winds to 30 knots with a few gale force
gusts to 35 knots possible diminishing to 15 to 25 knots.
freezing spray. scattered snow showers. waves building to 6 to
10 feet occasionally to 13 feet. 
.saturday...west winds 20 to 30 knots diminishing to 15 to
25 knots in the afternoon, then backing southwest late. freezing
spray through early afternoon. a chance of snow showers. waves
subsiding to 3 to 6 feet occasionally to 8 feet. 
.saturday night...south winds 20 to 30 knots diminishing to 15 to
25 knots after midnight, then becoming southwest 10 to 20 knots
late. waves subsiding to 1 to 3 feet. 
.sunday...southeast winds 10 to 20 knots backing east by mid
afternoon. waves subsiding to calm to 2 feet. 
.sunday night...southwest winds 10 to 20 knots veering north
after midnight. waves calm to 2 feet. 
.monday...northeast winds 10 to 20 knots veering east by mid
afternoon. waves calm to 2 feet. 
.monday night...east winds 15 to 25 knots increasing to 20 to
30 knots after midnight. a chance of rain showers. waves building
to 3 to 6 feet occasionally to 8 feet. 
.tuesday...east winds 15 to 25 knots becoming north 20 to
30 knots. a chance of rain and snow showers. freezing spray.
waves subsiding to 3 to 5 feet occasionally to 7 feet, then
building to 7 to 10 feet occasionally to 13 feet. 
.wednesday...north winds 20 to 30 knots becoming east 15 to
25 knots. freezing spray. waves subsiding to 2 to 4 feet, then
building to 3 to 6 feet occasionally to 8 feet. 

$$

fzus63 kmqt 272001
glfls 
expires:202603280800;;395834

open lake forecast for lake superior
national weather service marquette mi
400 pm edt fri mar 27 2026

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

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

.synopsis...

30.6 inch high pressure slides from the northern plains into the 
ohio river valley today through saturday. the high weakens to 30.5 
inches as it continues eastward, moving offshore into the atlantic 
sunday. upstream on sunday, a 29.6 inch low will organize over the 
central plains, lifting a 30.0 inch trough over lake superior by 
sunday night. this trough will linger over the great lakes, followed 
by the low tuesday. as the low lifts into canada, 30.3 inch high 
pressure builds over the northern plains, gradually building 
pressure over the upper great lakes by wednesday as the high presses 
east through ontario near 30.5 inches.



lsz266-280800-
lake superior east of a line from manitou island to marquette mi
and west of a line from grand marais mi to the us/canadian border
beyond 5nm from shore-
400 pm edt fri mar 27 2026

.late this afternoon...northwest winds to 30 knots with a few
gale force gusts to 35 knots possible. freezing spray. scattered
snow showers. waves 4 to 8 feet occasionally to 10 feet. 
.tonight...northwest winds to 30 knots with a few gale force
gusts to 35 knots possible diminishing to 20 to 30 knots after
midnight. freezing spray. scattered snow showers. waves building
to 7 to 10 feet occasionally to 13 feet, then subsiding to 5 to
8 feet occasionally to 10 feet. 
.saturday...west winds 15 to 25 knots backing southwest in the
afternoon, then becoming south 20 to 30 knots late. freezing
spray through early afternoon. a slight chance of snow showers by
mid afternoon. waves subsiding to 3 to 6 feet occasionally to
8 feet. 
.saturday night...south winds 20 to 30 knots diminishing to 10 to
20 knots after midnight, then veering southwest late. waves
subsiding to 1 to 3 feet. 
.sunday...east winds 10 to 20 knots. waves subsiding to calm to
2 feet. 
.sunday night...southeast winds 10 to 20 knots backing north
after midnight. waves calm to 2 feet. 
.monday...northeast winds 10 to 20 knots veering east by mid
afternoon. waves building to 1 to 3 feet. 
.monday night...east winds 15 to 25 knots increasing to 20 to
30 knots after midnight. a chance of rain and snow showers. waves
building to 5 to 8 feet occasionally to 10 feet. 
.tuesday...northeast winds 20 to 30 knots becoming north gales to
35 knots. a chance of rain and snow showers. freezing spray.
waves building to 9 to 12 feet occasionally to 15 feet. 
.wednesday...north winds 20 to 30 knots veering east. freezing
spray. waves subsiding to 2 to 4 feet, then building to 4 to
7 feet occasionally to 9 feet. 

$$

fzus63 kmqt 272001
glfls 
expires:202603280800;;395833

open lake forecast for lake superior
national weather service marquette mi
400 pm edt fri mar 27 2026

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

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

.synopsis...

30.6 inch high pressure slides from the northern plains into the 
ohio river valley today through saturday. the high weakens to 30.5 
inches as it continues eastward, moving offshore into the atlantic 
sunday. upstream on sunday, a 29.6 inch low will organize over the 
central plains, lifting a 30.0 inch trough over lake superior by 
sunday night. this trough will linger over the great lakes, followed 
by the low tuesday. as the low lifts into canada, 30.3 inch high 
pressure builds over the northern plains, gradually building 
pressure over the upper great lakes by wednesday as the high presses 
east through ontario near 30.5 inches.



lsz265-280800-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
400 pm edt fri mar 27 2026

.late this afternoon...northwest winds to 30 knots with a few
gale force gusts to 35 knots possible. freezing spray. isolated
snow showers. waves 3 to 6 feet occasionally to 8 feet building
to 4 to 7 feet occasionally to 9 feet. 
.tonight...northwest winds to 30 knots with a few gale force
gusts to 35 knots possible diminishing to 20 to 30 knots after
midnight, then becoming west 15 to 25 knots late. freezing spray
through midnight. waves subsiding to 3 to 5 feet occasionally to
7 feet. 
.saturday...west winds 15 to 25 knots backing south late. a
slight chance of snow showers by mid afternoon. waves subsiding
to calm to 2 feet, then building to 1 to 3 feet. 
.saturday night...south winds 15 to 25 knots diminishing to 10 to
20 knots after midnight, then veering southwest late. waves
subsiding to calm to 2 feet. 
.sunday...east winds 10 to 20 knots. waves calm to 2 feet. 
.sunday night...east winds 10 to 20 knots backing north after
midnight. waves calm to 2 feet. 
.monday...northeast winds 10 to 20 knots becoming east 15 to
25 knots by mid afternoon. waves building to 1 to 3 feet. 
.monday night...east winds 15 to 25 knots increasing to 20 to
30 knots after midnight. a chance of rain and snow showers. waves
building to 4 to 7 feet occasionally to 9 feet. 
.tuesday...northeast winds 20 to 30 knots backing north. a chance
of rain and snow showers. freezing spray. waves building to 8 to
11 feet occasionally to 14 feet. 
.wednesday...north winds 20 to 30 knots becoming east 15 to
25 knots. freezing spray. waves subsiding to 2 to 4 feet, then
building to 4 to 7 feet occasionally to 9 feet. 

$$

fzus63 kmqt 272001
glfls 
expires:202603280800;;395832

open lake forecast for lake superior
national weather service marquette mi
400 pm edt fri mar 27 2026

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

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

.synopsis...

30.6 inch high pressure slides from the northern plains into the 
ohio river valley today through saturday. the high weakens to 30.5 
inches as it continues eastward, moving offshore into the atlantic 
sunday. upstream on sunday, a 29.6 inch low will organize over the 
central plains, lifting a 30.0 inch trough over lake superior by 
sunday night. this trough will linger over the great lakes, followed 
by the low tuesday. as the low lifts into canada, 30.3 inch high 
pressure builds over the northern plains, gradually building 
pressure over the upper great lakes by wednesday as the high presses 
east through ontario near 30.5 inches.



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

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

$$

fzus63 kmqt 272001
glfls 
expires:202603280800;;395831

open lake forecast for lake superior
national weather service marquette mi
400 pm edt fri mar 27 2026

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

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

.synopsis...

30.6 inch high pressure slides from the northern plains into the 
ohio river valley today through saturday. the high weakens to 30.5 
inches as it continues eastward, moving offshore into the atlantic 
sunday. upstream on sunday, a 29.6 inch low will organize over the 
central plains, lifting a 30.0 inch trough over lake superior by 
sunday night. this trough will linger over the great lakes, followed 
by the low tuesday. as the low lifts into canada, 30.3 inch high 
pressure builds over the northern plains, gradually building 
pressure over the upper great lakes by wednesday as the high presses 
east through ontario near 30.5 inches.



lsz263-280800-
lake superior from saxon harbor wi to upper entrance to portage
canal mi 5nm off shore to the us/canadian border including isle
royale national park-
400 pm edt fri mar 27 2026

.late this afternoon...northwest winds 15 to 25 knots. freezing
spray. waves 3 to 6 feet occasionally to 8 feet. 
.tonight...northwest winds 15 to 25 knots backing west after
midnight. freezing spray through midnight. waves building to 4 to
7 feet occasionally to 9 feet, then subsiding to 3 to 5 feet
occasionally to 7 feet. 
.saturday...west winds 10 to 20 knots becoming southwest 15 to
25 knots in the afternoon, then backing south late. a slight
chance of snow showers by mid afternoon. waves subsiding to 2 to
4 feet, then building to 3 to 5 feet occasionally to 7 feet. 
.saturday night...south winds 5 to 15 knots backing northeast
after midnight. waves subsiding to calm to 2 feet. 
.sunday...northeast winds 5 to 15 knots. waves calm to 2 feet. 
.sunday night...northeast winds 5 to 15 knots. waves calm to
2 feet. 
.monday...northeast winds 5 to 15 knots becoming east 10 to
20 knots by mid afternoon. waves building to 2 to 4 feet. 
.monday night...east winds 15 to 25 knots. a chance of rain and
snow showers. waves building to 4 to 7 feet occasionally to
9 feet. 
.tuesday...northeast winds 15 to 25 knots becoming north 20 to
30 knots. a chance of rain showers. freezing spray. waves
building to 4 to 8 feet occasionally to 10 feet. 
.wednesday...north winds 15 to 25 knots veering east. freezing
spray. waves subsiding to 1 to 3 feet, then building to 3 to
6 feet occasionally to 8 feet. 

$$

fzus63 kmqt 272001
glfls 
expires:202603280800;;395830

open lake forecast for lake superior
national weather service marquette mi
400 pm edt fri mar 27 2026

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

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

.synopsis...

30.6 inch high pressure slides from the northern plains into the 
ohio river valley today through saturday. the high weakens to 30.5 
inches as it continues eastward, moving offshore into the atlantic 
sunday. upstream on sunday, a 29.6 inch low will organize over the 
central plains, lifting a 30.0 inch trough over lake superior by 
sunday night. this trough will linger over the great lakes, followed 
by the low tuesday. as the low lifts into canada, 30.3 inch high 
pressure builds over the northern plains, gradually building 
pressure over the upper great lakes by wednesday as the high presses 
east through ontario near 30.5 inches.



lsz162-280800-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
400 pm edt fri mar 27 2026 /300 pm cdt fri mar 27 2026/

.late this afternoon...northwest winds 20 to 30 knots. waves 3 to
5 feet occasionally to 7 feet. 
.tonight...northwest winds 15 to 25 knots backing west after
midnight, then diminishing to 10 to 20 knots late. waves
subsiding to 1 to 3 feet. 
.saturday...southwest winds 15 to 25 knots increasing to 20 to
30 knots in the afternoon, then diminishing to 10 to 20 knots
late. a slight chance of snow showers. waves subsiding to calm to
2 feet, then building to 3 to 5 feet occasionally to 7 feet. 
.saturday night...northeast winds 10 to 20 knots diminishing to
5 to 15 knots after midnight, then increasing to 10 to 20 knots
late. waves subsiding to calm to 2 feet. 
.sunday...northeast winds 10 to 20 knots diminishing to 5 to
15 knots by mid afternoon. waves calm to 2 feet. 
.sunday night...northeast winds 5 to 15 knots. waves calm to
2 feet. 
.monday...east winds 10 to 20 knots increasing to 15 to 25 knots
by mid afternoon. waves building to 3 to 5 feet occasionally to
7 feet. 
.monday night...east winds 15 to 25 knots backing northeast after
midnight. a chance of rain and snow showers. waves building to
4 to 7 feet occasionally to 9 feet. 
.tuesday...northeast winds 15 to 25 knots backing north. a chance
of rain showers. waves subsiding to 3 to 6 feet occasionally to
8 feet. 
.wednesday...east winds 10 to 20 knots increasing to 15 to
25 knots. waves subsiding to 1 to 3 feet, then building to 3 to
6 feet occasionally to 8 feet. 

$$