fzus61 kbuf 150208
glflo 
expires:202604150900;;382377

open lake forecast for lake ontario
national weather service buffalo ny
1008 pm edt tue apr 14 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 29.6 inch low just to the north of new england will 
continue to weaken as it slides eastward. a 29.6 inch low will move 
into the central great lakes wednesday night before reaching 
southern quebec thursday night, then drifting off the new england 
coast by friday night. a 30.0 inch high is then forecast to build 
from the central great lakes friday to the lower great lakes 
saturday morning, then off the east coast saturday night. a 29.3 
inch surface low to the north of lake superior saturday will deepen 
to 28.9 inches by sunday...with a trailing cold front crossing the 
lake saturday night.


loz062-150900-
lake ontario open waters from the niagara river to hamlin beach-
1008 pm edt tue apr 14 2026

.overnight...northwest winds 5 to 10 knots becoming east.
showers with a chance of thunderstorms late. waves 1 to 3 feet. 
.wednesday...southeast winds 10 to 15 knots becoming southwest.
showers with a chance of thunderstorms in the morning, then a
chance of showers and thunderstorms in the afternoon. waves 1 to
3 feet. 
.wednesday night...south winds 10 to 15 knots becoming southwest.
showers with a chance of thunderstorms in the evening, then
showers overnight. waves 1 to 2 feet. 
.thursday...southwest winds 10 to 15 knots. showers likely in the
morning, then showers likely with a chance of thunderstorms in
the afternoon. waves 1 to 3 feet. 
.thursday night...southwest winds 10 to 15 knots becoming west.
showers likely with a chance of thunderstorms in the evening,
then a chance of showers overnight. waves 1 to 3 feet. 
.friday...northwest winds 5 to 10 knots becoming southeast. a
chance of showers during the day. waves 1 foot or less. 
.saturday...southeast winds 5 to 15 knots becoming southwest and
increasing to 15 to 25 knots. showers likely. waves 2 feet or
less building to 4 to 7 feet. waves occasionally around 9 feet. 
.sunday...west winds to 30 knots. a chance of rain showers. waves
5 to 9 feet building to 7 to 10 feet. waves occasionally around
13 feet. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kbuf 150208
glflo 
expires:202604150900;;382378

open lake forecast for lake ontario
national weather service buffalo ny
1008 pm edt tue apr 14 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 29.6 inch low just to the north of new england will 
continue to weaken as it slides eastward. a 29.6 inch low will move 
into the central great lakes wednesday night before reaching 
southern quebec thursday night, then drifting off the new england 
coast by friday night. a 30.0 inch high is then forecast to build 
from the central great lakes friday to the lower great lakes 
saturday morning, then off the east coast saturday night. a 29.3 
inch surface low to the north of lake superior saturday will deepen 
to 28.9 inches by sunday...with a trailing cold front crossing the 
lake saturday night.


loz063>065-150900-
lake ontario open waters from hamlin beach to the saint lawrence
river-
1008 pm edt tue apr 14 2026

.overnight...northwest winds 5 to 10 knots becoming
southeast. a chance of showers and thunderstorms late. waves 1 to
3 feet. 
.wednesday...southeast winds 5 to 15 knots becoming west. showers
with a chance of thunderstorms in the morning, then a chance of
showers and thunderstorms in the afternoon. waves 2 feet or less.
.wednesday night...southwest winds 5 to 10 knots. showers with a
chance of thunderstorms in the evening, then showers overnight.
waves 1 to 2 feet. 
.thursday...southwest winds around 10 knots. showers likely in
the morning, then showers likely with a chance of thunderstorms
in the afternoon. waves 1 to 2 feet. 
.thursday night...southwest winds 5 to 10 knots becoming west.
showers likely with a chance of thunderstorms in the evening,
then showers likely overnight. waves 1 to 2 feet. 
.friday...northwest winds 5 to 10 knots becoming northeast. a
chance of showers. waves 1 foot or less. 
.saturday...southeast winds 5 to 15 knots becoming southwest and
increasing to 15 to 25 knots. a chance of showers during the day,
then showers likely saturday night. waves 2 feet or less building
to 4 to 7 feet. waves occasionally around 9 feet. 
.sunday...southwest winds to 30 knots becoming west. rain showers
likely during the day, then a chance of rain and snow showers
sunday night. waves 6 to 10 feet building to 9 to 12 feet. waves
occasionally around 15 feet. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 150146
glfle 
expires:202604150830;;381668

open lake forecast for lake erie
national weather service cleveland oh
946 pm edt tue apr 14 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 stalled front remains situated across the lower great lakes 
through midweek. a series of disturbances will move across the 
region during this time bringing unsettled weather including low 
pressure of 29.70 inches crossing the central great lakes on  
thursday. high pressure of 30.00 inches builds in briefly on 
friday followed by low pressure 29.50 inches tracking across the 
northern great lakes on saturday.


lez162>165-150830-
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-
vermilion to avon point oh beyond 5 nm off shoreline to us-
canadian border-
946 pm edt tue apr 14 2026

.rest of tonight...southwest winds 10 to 15 knots. a chance of
showers and thunderstorms late this evening, then showers and
thunderstorms likely after midnight. waves 1 to 3 feet. 
.wednesday...southwest winds 10 to 15 knots. showers and
thunderstorms likely early, then a chance of showers and
thunderstorms. showers likely with a chance of thunderstorms
late. waves 1 to 3 feet. 
.wednesday night...southwest winds 10 to 15 knots. showers likely
with a chance of thunderstorms. waves 1 to 2 feet. 
.thursday...southwest winds 10 to 15 knots. a chance of showers
in the morning, then showers in the afternoon. waves 1 to 2 feet.
.thursday night...southwest winds around 10 knots becoming west.
showers with a chance of thunderstorms in the evening, then a
chance of showers overnight. waves 1 to 2 feet. 
.friday...west winds 5 to 15 knots becoming southeast. waves
2 feet or less. 
.saturday...south winds 15 to 25 knots becoming west. showers
with a chance of thunderstorms during the day, then a chance of
showers saturday night. waves 2 to 4 feet building to 3 to
5 feet. 
.sunday...west winds 15 to 25 knots becoming northwest. a chance
of rain showers during the day. waves 3 to 6 feet. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 150146
glfle 
expires:202604150830;;381669

open lake forecast for lake erie
national weather service cleveland oh
946 pm edt tue apr 14 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 stalled front remains situated across the lower great lakes 
through midweek. a series of disturbances will move across the 
region during this time bringing unsettled weather including low 
pressure of 29.70 inches crossing the central great lakes on  
thursday. high pressure of 30.00 inches builds in briefly on 
friday followed by low pressure 29.50 inches tracking across the 
northern great lakes on saturday.


lez061-166>169-150830-
ripley to buffalo ny extending from 5nm off shoreline to us-
canadian border-
avon point to willowick oh beyond 5 nm off shoreline to us-
canadian border-willowick to geneva-on-the-
lake oh beyond 5nm off shoreline to us-canadian border-geneva-on-
the-lake to conneaut oh beyond 5 nm off shoreline to us-
canadian border-
conneaut oh to ripley ny beyond 5 nm off shoreline to us-
canadian border-
946 pm edt tue apr 14 2026

.rest of tonight...south winds 5 to 15 knots becoming southwest.
a chance of showers and thunderstorms late this evening, then
showers and thunderstorms likely after midnight. waves 1 to
3 feet. 
.wednesday...southwest winds 10 to 15 knots. showers and
thunderstorms early, then a chance of showers and thunderstorms.
showers likely with a chance of thunderstorms late. waves 1 to
3 feet. 
.wednesday night...southwest winds 5 to 15 knots. showers likely
with a chance of thunderstorms. waves 1 to 2 feet. 
.thursday...southwest winds 10 to 15 knots. showers likely. waves
1 to 3 feet. 
.thursday night...southwest winds 5 to 10 knots becoming west.
showers likely with a chance of thunderstorms in the evening,
then showers likely overnight. waves 1 to 2 feet. 
.friday...west winds 5 to 15 knots becoming southeast. waves
2 feet or less. 
.saturday...south winds 15 to 25 knots becoming west. showers
likely with a chance of thunderstorms during the day, then
showers likely saturday night. waves 2 to 4 feet building to 3 to
6 feet. 
.sunday...west winds 15 to 25 knots becoming northwest. a chance
of rain showers during the day. waves 4 to 7 feet subsiding to
3 to 6 feet. waves occasionally around 9 feet. 

winds and waves higher in and near thunderstorms.

$$

fzus63 kdtx 150104
glfsc 
expires:202604150915;;380214

lake st clair forecast
national weather service detroit/pontiac mi
904 pm edt tue apr 14 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...a line of showers and thunderstorms will track east-
southeast across the great lakes late tonight, with potential for
strong to severe storms. additional lows through the week
maintain shower and storm chances into the weekend.


lcz460-150915-
lake st clair-
904 pm edt tue apr 14 2026

...tornado watch 113 in effect until 4 am edt wednesday...

.rest of tonight...south winds 5 to 10 knots becoming southwest 10
to 15 knots after midnight. showers likely this evening. a chance of
thunderstorms. rain showers after midnight. waves 2 feet or less.
.wednesday...southwest winds 10 to 15 knots. mostly cloudy. a chance
of light showers until late afternoon. a chance of thunderstorms in
the afternoon. light showers likely late in the afternoon. waves 2
feet or less.
.wednesday night...southwest winds 10 to 15 knots. showers and a
chance of thunderstorms ...then light showers likely after midnight.
waves 2 feet or less.
.thursday...southwest winds 10 to 15 knots. mostly cloudy. light
showers likely early in the morning...then a chance of light showers
in the late morning and early afternoon. light showers likely and a
chance of thunderstorms early in the afternoon. waves 2 feet or
less.
.thursday night...southwest winds 10 to 15 knots becoming west 5 to
10 knots in the late evening and overnight. mostly cloudy. a chance
of thunderstorms early in the evening. a chance of light showers .
waves 2 feet or less.
.friday...northwest winds 5 to 10 knots veering to the northeast in
the afternoon...then veering to the southeast in the evening. mostly
cloudy in the morning becoming partly cloudy. waves 2 feet or less.
.saturday...west winds 20 to 25 knots. light showers and a chance of
thunderstorms. waves 2 to 4 feet.
.sunday...northwest winds to 30 knots. partly cloudy. a chance of
light showers. waves 2 to 4 feet. a small craft advisory may be
needed.

$$

fzus63 kdtx 150103
glflh 
expires:202604150915;;380131

open lake forecast for lake huron
national weather service detroit/pontiac mi
903 pm edt tue apr 14 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...a line of showers and thunderstorms will track east-
southeast across the great lakes late tonight, with potential for
strong to severe storms. additional lows through the week
maintain shower and storm chances into the weekend.


lhz363-462>464-150915-
lake huron from sturgeon point to alabaster mi beyond 5nm off
shore-
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-
903 pm edt tue apr 14 2026

.rest of tonight...east winds 5 to 10 knots. a chance of showers
and thunderstorms this evening...then showers likely and a chance
of thunderstorms after midnight. waves 1 to 3 feet. 
.wednesday...south winds 5 to 10 knots backing to the east late
in the afternoon. a chance of showers in the afternoon. waves
1 to 3 feet. 
.wednesday night...east winds 5 to 10 knots veering to the
southeast by midnight...then backing to the southeast 5 to
10 knots after midnight. showers likely. waves 1 to 3 feet. 
.thursday...north winds 5 to 10 knots. a chance of showers. waves
1 to 3 feet. 
.thursday night...north winds 5 to 10 knots. a chance of showers
in the evening. waves 1 to 3 feet. 
.friday...north winds 5 to 10 knots veering to the northeast late
in the afternoon...then becoming southeast 10 to 15 knots late in
the evening. waves 1 to 3 feet building to 3 to 5 feet late in
the evening. 
.saturday...south winds 15 to 20 knots increasing to 20 to
25 knots in the late morning and early afternoon...then
decreasing to 15 to 20 knots early in the evening becoming west
20 to 25 knots by midnight. showers in the late morning and early
afternoon. a chance of showers . waves 6 to 9 feet. waves
occasionally around 12 feet. 
.sunday...west winds 20 to 25 knots veering to the northwest by
midnight. gusts to 30 knots. waves 8 to 12 feet. waves
occasionally around 15 feet. 


$$

fzus63 kdtx 150103
glflh 
expires:202604150915;;380130

open lake forecast for lake huron
national weather service detroit/pontiac mi
903 pm edt tue apr 14 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...a line of showers and thunderstorms will track east-
southeast across the great lakes late tonight, with potential for
strong to severe storms. additional lows through the week
maintain shower and storm chances into the weekend.


lhz361-362-150915-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
lake huron from presque isle light to sturgeon point mi beyond
5nm off shore-
903 pm edt tue apr 14 2026

.rest of tonight...east winds 5 to 10 knots. a chance of showers
after midnight. waves 1 to 3 feet. 
.wednesday...north winds 5 to 10 knots. a chance of showers in
the afternoon. waves 1 to 3 feet. 
.wednesday night...northeast winds 5 to 10 knots. a chance of
showers. waves 1 to 3 feet. 
.thursday...north winds 5 to 10 knots. a chance of showers. waves
1 to 3 feet. 
.thursday night...north winds 5 to 10 knots backing to the
northwest after midnight. a chance of showers in the evening.
waves 1 to 3 feet. 
.friday...north 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 showers late in the evening.
waves 1 to 3 feet building to 4 to 6 feet late in the evening.
waves occasionally around 8 feet. 
.saturday...south winds 20 to 25 knots with gusts to around
30 knots becoming west to 30 knots by midnight. showers early in
the morning. a chance of showers. a chance of snow showers by
midnight. waves 8 to 12 feet. waves occasionally around 15 feet. 
.sunday...west winds to 30 knots with gusts to 35 knot gales. a
chance of snow showers early in the morning. waves 10 to 14 feet.
waves occasionally around 18 feet. 


$$

fzus63 kmkx 150246
glflm 
expires:202604150930;;383634

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
946 pm cdt tue apr 14 2026

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

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

.synopsis...

a stationary front will remain parked over the middle third of
the lake into tomorrow, slowly sinking south to the southern end
of the lake by thursday morning. winds will remain southerly
south of the front and modestly breezy, while winds north of the
front will remain light and variable to northerly during this
time. the front will clear the lake as a cold front friday, 
before low pressure of 29.6 inches approaches from the west.

thunderstorms are possible over the southern third overnight into
thursday morning, then thursday late afternoon and night.
thunderstorm chances return along a cold front friday night. 


lmz261-362-364-366-563-565-567-868-150930-
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-
946 pm cdt tue apr 14 2026

sheboygan wi to pentwater mi north...

...dense fog advisory in effect until 7 am cdt wednesday...

.rest of tonight...northeast winds 10 to 20 kt becoming north
10 to 15 kt. areas of dense fog. chance of rain showers and
slight chance of thunderstorms late this evening, then slight
chance of rain showers overnight. waves 1 to 3 ft. 
.wednesday...north winds 10 to 15 kt diminishing to 5 to 10 kt.
areas of dense fog in the morning, then patchy fog in the
afternoon. slight chance of rain showers in the morning, then
chance of rain showers and slight chance of thunderstorms in the
afternoon. waves 1 to 3 ft. 
.wednesday night...northeast winds 5 to 10 kt increasing to 10 to
15 kt. patchy fog in the evening. rain showers likely with a
chance of thunderstorms in the evening, then chance of rain
showers overnight. waves 1 to 2 ft. 
.thursday...north winds 10 to 20 kt diminishing to 10 to 15 kt.
chance of rain showers. waves 1 to 3 ft. 
.thursday night...north winds 5 to 10 kt becoming northeast.
waves 1 to 3 ft. 
.friday...southeast winds 10 to 15 kt increasing to 10 to 20 kt.
waves 1 to 2 ft building to 2 to 4 ft. 
.friday night...southeast winds 15 to 25 kt becoming south to
30 kt. chance of rain showers. waves 4 to 7 ft occasionally to
9 ft building to 6 to 9 ft occasionally to 12 ft. 
.saturday...south winds to 30 kt becoming southwest. chance of
rain showers. waves 6 to 9 ft occasionally to 12 ft. 
.sunday...northwest gales to 35 kt. waves 8 to 12 ft occasionally
to 16 ft subsiding to 8 to 11 ft occasionally to 14 ft.  

$$

fzus63 kmkx 150246
glflm 
expires:202604150930;;383637

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
946 pm cdt tue apr 14 2026

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

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

.synopsis...

a stationary front will remain parked over the middle third of
the lake into tomorrow, slowly sinking south to the southern end
of the lake by thursday morning. winds will remain southerly
south of the front and modestly breezy, while winds north of the
front will remain light and variable to northerly during this
time. the front will clear the lake as a cold front friday, 
before low pressure of 29.6 inches approaches from the west.

thunderstorms are possible over the southern third overnight into
thursday morning, then thursday late afternoon and night.
thunderstorm chances return along a cold front friday night. 


lmz673-675-150930-
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-
946 pm cdt tue apr 14 2026

north point light wi to grand haven mi south to winthrop harbor
il to south haven mi...

...tornado watch 109 in effect until 10 pm cdt this evening...

.rest of tonight...south winds 15 to 25 kt becoming southwest
10 to 20 kt. areas of dense fog. showers with thunderstorms
likely late this evening, then chance of showers and
thunderstorms overnight. waves 2 to 4 ft. 
.wednesday...southwest winds 10 to 20 kt becoming south 10 to
15 kt. areas of dense fog in the morning, then patchy dense fog
in the afternoon. chance of rain showers and thunderstorms. waves
1 to 3 ft. 
.wednesday night...south winds 10 to 15 kt. patchy fog in the
evening. rain showers with a chance of thunderstorms. waves 1 to
3 ft. 
.thursday...southwest winds 10 to 15 kt veering to northwest 5 to
10 kt. chance of rain showers in the morning, then chance of rain
showers and thunderstorms in the afternoon. waves 1 to 3 ft. 
.thursday night...north winds 5 to 10 kt. waves 1 to 2 ft. 
.friday...southeast winds 5 to 10 kt increasing to 10 to 20 kt in
the afternoon. waves 1 to 2 ft building to 1 to 3 ft. 
.friday night...southeast winds 15 to 25 kt becoming south.
showers with a chance of thunderstorms. waves 3 to 5 ft building
to 4 to 7 ft occasionally to 9 ft. 
.saturday...south winds 15 to 25 kt becoming west. showers
likely. waves 5 to 8 ft occasionally to 10 ft. 
.sunday...west winds to 30 kt becoming northwest. waves 7 to
10 ft occasionally to 13 ft subsiding to 6 to 9 ft occasionally
to 12 ft.  

$$

fzus63 kmkx 150246
glflm 
expires:202604150930;;383635

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
946 pm cdt tue apr 14 2026

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

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

.synopsis...

a stationary front will remain parked over the middle third of
the lake into tomorrow, slowly sinking south to the southern end
of the lake by thursday morning. winds will remain southerly
south of the front and modestly breezy, while winds north of the
front will remain light and variable to northerly during this
time. the front will clear the lake as a cold front friday, 
before low pressure of 29.6 inches approaches from the west.

thunderstorms are possible over the southern third overnight into
thursday morning, then thursday late afternoon and night.
thunderstorm chances return along a cold front friday night. 


lmz669-671-870-872-150930-
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 whitehall to pentwater mi 5 nm offshore to mid
lake-
lake michigan from grand haven to whitehall mi 5 nm offshore to
mid lake-
946 pm cdt tue apr 14 2026

sheboygan wi to pentwater mi south to north point light wi to
grand haven mi...

...dense fog advisory in effect until 7 am cdt wednesday...

.rest of tonight...south winds 15 to 25 kt becoming southwest
10 to 20 kt. areas of dense fog. rain showers likely with a
chance of thunderstorms late this evening, then slight chance of
rain showers and thunderstorms overnight. waves 1 to 3 ft. 
.wednesday...west winds 10 to 20 kt becoming southwest 10 to
15 kt late in the morning, then becoming south 5 to 10 kt early
in the afternoon backing to northeast 10 to 15 kt late. areas of
dense fog in the morning, then patchy fog in the afternoon.
chance of rain showers and slight chance of thunderstorms in the
morning, then rain showers likely with a chance of thunderstorms
in the afternoon. waves 1 to 3 ft. 
.wednesday night...east winds 10 to 15 kt becoming southeast 5 to
10 kt. patchy fog in the evening. rain showers with a chance of
thunderstorms in the evening, then rain showers likely with a
chance of thunderstorms overnight. waves 1 to 3 ft. 
.thursday...northwest winds 10 to 20 kt diminishing to 10 to
15 kt. chance of rain showers. waves 1 to 3 ft. 
.thursday night...north winds 5 to 10 kt. waves 1 to 3 ft. 
.friday...southeast winds 5 to 10 kt becoming south 10 to 20 kt
in the afternoon. waves 1 to 2 ft building to 2 to 4 ft. 
.friday night...southeast winds 15 to 25 kt becoming south to
30 kt. rain showers with a chance of thunderstorms. waves 4 to
6 ft occasionally to 8 ft building to 5 to 8 ft occasionally to
10 ft. 
.saturday...south winds to 30 kt becoming southwest. rain showers
likely. waves 6 to 9 ft occasionally to 12 ft. 
.sunday...northwest gales to 35 kt diminishing to 30 kt. waves
8 to 12 ft occasionally to 16 ft.  

$$

fzus63 kmkx 150246
glflm 
expires:202604150930;;383636

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
946 pm cdt tue apr 14 2026

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

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

.synopsis...

a stationary front will remain parked over the middle third of
the lake into tomorrow, slowly sinking south to the southern end
of the lake by thursday morning. winds will remain southerly
south of the front and modestly breezy, while winds north of the
front will remain light and variable to northerly during this
time. the front will clear the lake as a cold front friday, 
before low pressure of 29.6 inches approaches from the west.

thunderstorms are possible over the southern third overnight into
thursday morning, then thursday late afternoon and night.
thunderstorm chances return along a cold front friday night. 


lmz080-777-779-874-876-878-150930-
lake michigan from michigan city in to st. joseph mi 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 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-
946 pm cdt tue apr 14 2026

winthrop harbor il to south haven mi south...

.rest of tonight...south winds 15 to 25 kt becoming southwest.
patchy fog late this evening, then areas of dense fog overnight.
showers with thunderstorms likely late this evening, then showers
likely with a chance of thunderstorms overnight. waves 2 to 4 ft.
.wednesday...southwest winds 10 to 20 kt becoming south. areas of
dense fog in the morning, then patchy dense fog in the afternoon.
rain showers likely with a chance of thunderstorms in the
morning, then chance of rain showers and thunderstorms in the
afternoon. waves 1 to 3 ft. 
.wednesday night...south winds 10 to 20 kt diminishing to 10 to
15 kt. patchy fog in the evening. rain showers with a chance of
thunderstorms. waves 1 to 3 ft. 
.thursday...southwest winds 15 to 25 kt becoming west 10 to 15 kt
in the afternoon. rain showers likely in the morning, then rain
showers likely with a chance of thunderstorms in the afternoon.
waves 2 to 4 ft. 
.thursday night...northwest winds 5 to 10 kt becoming north.
waves 1 to 3 ft. 
.friday...southeast winds 5 to 10 kt increasing to 10 to 15 kt.
waves 1 to 2 ft. 
.friday night...southeast winds 15 to 25 kt becoming south.
showers with a chance of thunderstorms. waves 3 to 5 ft building
to 4 to 7 ft occasionally to 9 ft. 
.saturday...south winds 15 to 25 kt becoming southwest. chance of
showers. waves 5 to 8 ft occasionally to 10 ft. 
.sunday...west winds to 30 kt becoming northwest. waves 8 to
12 ft occasionally to 16 ft.  

$$

fzus63 kmqt 150318
glfls 
expires:202604151130;;385228

open lake forecast for lake superior
national weather service marquette mi
1118 pm edt tue apr 14 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...

weak ridging of around 29.8 to 29.9 inches moves back over lake 
superior from northern ontario tonight through wednesday before 
another low from the central plains lifts through lower michigan or 
closer to the straits at around 29.7 inches. ridging increases to 
29.8 inches over lake superior later in the day thursday before 
troughing of 29.4 to 29.6 inches moves across the lake friday 
through saturday. this deepens further to 29.0 inches over far 
northern quebec by sunday morning. 30.2 inch ridging builds in over 
lake superior for sunday night.



lsz162-151130-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
1118 pm edt tue apr 14 2026 /1018 pm cdt tue apr 14 2026/

...dense fog advisory in effect until 11 am edt /10 am cdt/
wednesday...

.rest of tonight...north winds 5 to 15 knots. areas of dense fog.
waves calm to 2 feet. 
.wednesday...east winds 5 to 15 knots backing northeast in the
afternoon. areas of fog. waves calm to 2 feet. 
.wednesday night...northeast winds 5 to 15 knots. patchy fog
through midnight. waves calm to 2 feet. 
.thursday...northeast winds 5 to 15 knots. waves calm to 2 feet. 
.thursday night...northeast winds 10 to 20 knots. waves building
to 1 to 3 feet. 
.friday...northeast winds 10 to 20 knots. a chance of rain
showers by mid afternoon. waves building to 3 to 5 feet
occasionally to 7 feet. 
.friday night...north winds 15 to 25 knots becoming northwest
20 to 30 knots after midnight. rain showers and a chance of
thunderstorms through midnight, then a chance of rain showers
after midnight. waves building to 4 to 8 feet occasionally to
10 feet. 
.saturday...west winds 20 to 30 knots becoming northwest gales to
35 knots. a chance of rain showers. a chance of snow showers.
waves building to 6 to 9 feet occasionally to 11 feet. 
.sunday...northwest gales to 35 knots diminishing to 5 to
15 knots. waves subsiding to 1 to 3 feet. 

$$

fzus63 kmqt 150318
glfls 
expires:202604151130;;385229

open lake forecast for lake superior
national weather service marquette mi
1118 pm edt tue apr 14 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...

weak ridging of around 29.8 to 29.9 inches moves back over lake 
superior from northern ontario tonight through wednesday before 
another low from the central plains lifts through lower michigan or 
closer to the straits at around 29.7 inches. ridging increases to 
29.8 inches over lake superior later in the day thursday before 
troughing of 29.4 to 29.6 inches moves across the lake friday 
through saturday. this deepens further to 29.0 inches over far 
northern quebec by sunday morning. 30.2 inch ridging builds in over 
lake superior for sunday night.



lsz263-151130-
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-
1118 pm edt tue apr 14 2026

...dense fog advisory in effect until 11 am edt wednesday...

.rest of tonight...north winds less than 10 knots. areas of dense
fog. a slight chance of drizzle after midnight. waves calm to
2 feet. 
.wednesday...northeast winds less than 10 knots. a slight chance
of drizzle through early afternoon. areas of dense fog through
early afternoon, then patchy fog by mid afternoon. waves calm to
2 feet. 
.wednesday night...east winds less than 10 knots backing
northeast late. patchy fog through midnight. a slight chance of
rain showers through midnight. waves calm to 2 feet. 
.thursday...northeast winds less than 10 knots increasing to 5 to
15 knots by mid afternoon. waves calm to 2 feet. 
.thursday night...east winds 5 to 15 knots. waves building to
2 to 4 feet. 
.friday...east winds 10 to 20 knots increasing to 15 to 25 knots
by mid afternoon. a chance of rain showers by mid afternoon.
waves building to 3 to 6 feet occasionally to 8 feet. 
.friday night...south winds 20 to 30 knots veering west after
midnight. a chance of thunderstorms through midnight. rain
showers. waves building to 6 to 9 feet occasionally to 11 feet. 
.saturday...west gales to 35 knots veering northwest. a chance of
rain showers. a chance of snow showers. waves building to 10 to
14 feet occasionally to 18 feet. 
.sunday...northwest gales to 35 knots diminishing to 10 to
20 knots. waves subsiding to 4 to 7 feet occasionally to 9 feet. 

$$

fzus63 kmqt 150318
glfls 
expires:202604151130;;385230

open lake forecast for lake superior
national weather service marquette mi
1118 pm edt tue apr 14 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...

weak ridging of around 29.8 to 29.9 inches moves back over lake 
superior from northern ontario tonight through wednesday before 
another low from the central plains lifts through lower michigan or 
closer to the straits at around 29.7 inches. ridging increases to 
29.8 inches over lake superior later in the day thursday before 
troughing of 29.4 to 29.6 inches moves across the lake friday 
through saturday. this deepens further to 29.0 inches over far 
northern quebec by sunday morning. 30.2 inch ridging builds in over 
lake superior for sunday night.



lsz264-151130-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
1118 pm edt tue apr 14 2026

...dense fog advisory in effect until 11 am edt wednesday...

.rest of tonight...north winds less than 10 knots. areas of dense
fog. a slight chance of drizzle. waves calm to 2 feet. 
.wednesday...north winds less than 10 knots veering northeast in
the afternoon. a slight chance of drizzle through early
afternoon. areas of dense fog through early afternoon, then
patchy fog by mid afternoon. waves calm to 2 feet. 
.wednesday night...northeast winds less than 10 knots veering
southeast after midnight, then backing east late. patchy fog
through midnight. waves calm to 2 feet. 
.thursday...east winds less than 10 knots increasing to 5 to
15 knots by mid afternoon. waves calm to 2 feet. 
.thursday night...east winds 5 to 15 knots. waves building to
2 to 4 feet. 
.friday...east winds 10 to 20 knots becoming southeast 15 to
25 knots by mid afternoon. waves building to 3 to 6 feet
occasionally to 8 feet. 
.friday night...southeast winds 20 to 30 knots becoming south
gales to 35 knots after midnight. rain showers. snow showers
likely after midnight. waves building to 8 to 11 feet
occasionally to 14 feet. 
.saturday...northwest gales to 45 knots. a chance of rain
showers. a chance of snow showers. waves subsiding to 7 to
10 feet occasionally to 13 feet, then building to 11 to 15 feet
occasionally to 19 feet. 
.sunday...northwest gales to 40 knots diminishing to 15 to
25 knots. waves subsiding to 5 to 8 feet occasionally to 10 feet,
then building to 6 to 9 feet occasionally to 11 feet. 

$$

fzus63 kmqt 150318
glfls 
expires:202604151130;;385231

open lake forecast for lake superior
national weather service marquette mi
1118 pm edt tue apr 14 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...

weak ridging of around 29.8 to 29.9 inches moves back over lake 
superior from northern ontario tonight through wednesday before 
another low from the central plains lifts through lower michigan or 
closer to the straits at around 29.7 inches. ridging increases to 
29.8 inches over lake superior later in the day thursday before 
troughing of 29.4 to 29.6 inches moves across the lake friday 
through saturday. this deepens further to 29.0 inches over far 
northern quebec by sunday morning. 30.2 inch ridging builds in over 
lake superior for sunday night.



lsz265-151130-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
1118 pm edt tue apr 14 2026

...dense fog advisory in effect until 11 am edt wednesday...

.rest of tonight...northwest winds 5 to 15 knots. areas of dense
fog. a slight chance of drizzle. waves calm to 2 feet. 
.wednesday...north winds 5 to 15 knots veering northeast late. a
slight chance of drizzle through early afternoon. areas of dense
fog through early afternoon, then patchy fog by mid afternoon.
waves calm to 2 feet. 
.wednesday night...east winds 5 to 15 knots veering southeast
after midnight, then backing east late. patchy fog through
midnight. a slight chance of rain showers. waves calm to 2 feet. 
.thursday...east winds 10 to 20 knots. waves calm to 2 feet. 
.thursday night...east winds 10 to 20 knots veering southeast
after midnight. waves building to 1 to 3 feet. 
.friday...southeast winds 15 to 25 knots increasing to 20 to
30 knots by mid afternoon. waves building to 3 to 6 feet
occasionally to 8 feet. 
.friday night...south gales to 35 knots. rain showers. waves
building to 6 to 10 feet occasionally to 13 feet. 
.saturday...west gales to 40 knots. rain showers likely. a chance
of snow showers. waves building to 10 to 14 feet occasionally to
18 feet. 
.sunday...northwest gales to 40 knots diminishing to 20 to
30 knots. waves subsiding to 4 to 7 feet occasionally to 9 feet. 

$$

fzus63 kmqt 150318
glfls 
expires:202604151130;;385232

open lake forecast for lake superior
national weather service marquette mi
1118 pm edt tue apr 14 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...

weak ridging of around 29.8 to 29.9 inches moves back over lake 
superior from northern ontario tonight through wednesday before 
another low from the central plains lifts through lower michigan or 
closer to the straits at around 29.7 inches. ridging increases to 
29.8 inches over lake superior later in the day thursday before 
troughing of 29.4 to 29.6 inches moves across the lake friday 
through saturday. this deepens further to 29.0 inches over far 
northern quebec by sunday morning. 30.2 inch ridging builds in over 
lake superior for sunday night.



lsz266-151130-
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-
1118 pm edt tue apr 14 2026

...dense fog advisory in effect until 11 am edt wednesday...

.rest of tonight...north winds 5 to 15 knots. areas of dense fog.
a slight chance of drizzle. waves calm to 2 feet. 
.wednesday...north winds 5 to 15 knots. a slight chance of
drizzle through early afternoon. areas of dense fog through early
afternoon, then patchy fog by mid afternoon. waves calm to
2 feet. 
.wednesday night...northeast winds 5 to 15 knots backing north
after midnight. patchy fog through midnight. a chance of rain
showers. waves calm to 2 feet. 
.thursday...northeast winds 5 to 15 knots increasing to 10 to
20 knots by mid afternoon. a slight chance of rain showers. waves
calm to 2 feet. 
.thursday night...northeast winds 10 to 20 knots veering east
after midnight. waves building to 1 to 3 feet. 
.friday...southeast winds 15 to 25 knots increasing to 20 to
30 knots by mid afternoon. waves building to 3 to 6 feet
occasionally to 8 feet. 
.friday night...southeast gales to 35 knots becoming south gales
to 40 knots after midnight. a chance of rain showers through
midnight. rain showers after midnight. waves building to 9 to
12 feet occasionally to 15 feet. 
.saturday...west gales to 45 knots. rain showers likely. a chance
of snow showers. a chance of rain showers. waves building to
10 to 14 feet occasionally to 18 feet, then subsiding to 9 to
12 feet occasionally to 15 feet. 
.sunday...northwest gales to 45 knots. waves subsiding to 8 to
11 feet occasionally to 14 feet. 

$$

fzus63 kmqt 150318
glfls 
expires:202604151130;;385233

open lake forecast for lake superior
national weather service marquette mi
1118 pm edt tue apr 14 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...

weak ridging of around 29.8 to 29.9 inches moves back over lake 
superior from northern ontario tonight through wednesday before 
another low from the central plains lifts through lower michigan or 
closer to the straits at around 29.7 inches. ridging increases to 
29.8 inches over lake superior later in the day thursday before 
troughing of 29.4 to 29.6 inches moves across the lake friday 
through saturday. this deepens further to 29.0 inches over far 
northern quebec by sunday morning. 30.2 inch ridging builds in over 
lake superior for sunday night.



lsz267-151130-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
1118 pm edt tue apr 14 2026

...dense fog advisory in effect until 11 am edt wednesday...

.rest of tonight...southeast winds 5 to 15 knots backing north
late. areas of dense fog. a slight chance of drizzle. waves calm
to 2 feet. 
.wednesday...north winds 5 to 15 knots. a slight chance of
drizzle through early afternoon. widespread dense fog through
early afternoon, then patchy fog by mid afternoon. waves calm to
2 feet. 
.wednesday night...north winds 5 to 15 knots. patchy fog through
midnight. a chance of rain showers. waves calm to 2 feet. 
.thursday...north winds 5 to 15 knots. a slight chance of rain
showers. waves calm to 2 feet. 
.thursday night...north winds 5 to 15 knots veering east after
midnight. waves calm to 2 feet. 
.friday...southeast winds 10 to 20 knots increasing to 15 to
25 knots by mid afternoon. waves building to 2 to 4 feet. 
.friday night...southeast winds 20 to 30 knots increasing to
gales to 35 knots after midnight. a chance of rain showers
through midnight, then rain showers likely after midnight. waves
building to 6 to 9 feet occasionally to 11 feet. 
.saturday...west gales to 40 knots. rain showers, possibly mixed
with snow, then a chance of snow showers, possibly mixed with
rain. waves building to 15 to 20 feet occasionally to 25 feet. 
.sunday...northwest gales to 40 knots diminishing to 20 to
30 knots. a chance of snow showers. waves subsiding to 9 to
12 feet occasionally to 15 feet. 

$$