fzus61 kbuf 180202
glflo 
expires:202605180900;;741002

open lake forecast for lake ontario
national weather service buffalo ny
1002 pm edt sun may 17 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...high pressure will weaken to 30.0 inches across the 
lake tonight. an area of low pressure will develop over the central 
plains monday. the low will weaken from 29.4 inches to 29.6 inches 
as it tracks northeast to the upper great lakes monday night into 
tuesday morning, then to central quebec wednesday while 
strengthening to 29.4 inches. a cold front attendant to this low 
will cross the lake late tuesday night into wednesday morning. a 
large 30.4 inch high will then build across the entire great lakes 
region wednesday night through thursday. high pressure will move to 
the east and weaken to 30.1 inches friday.


loz062-180900-
lake ontario open waters from the niagara river to hamlin beach-
1002 pm edt sun may 17 2026

.overnight...southeast winds 5 to 10 knots becoming east. a
chance of showers and thunderstorms. waves 1 foot or less. 
.monday...southeast winds 10 knots or less becoming southwest and
increasing to 15 to 20 knots in the afternoon. waves 1 foot or
less building to 2 to 4 feet. 
.monday night...southwest winds 15 to 20 knots diminishing to
10 to 15 knots. a chance of showers overnight. waves 2 to 4 feet
subsiding to 1 to 3 feet. 
.tuesday...southwest winds 10 to 15 knots increasing to 15 to
25 knots. a chance of showers in the morning. waves 1 to 3 feet
building to 3 to 6 feet. 
.tuesday night...southwest winds 15 to 25 knots becoming west.
showers with a chance of thunderstorms in the evening, then
showers overnight. waves 3 to 6 feet. 
.wednesday...west winds 15 to 20 knots becoming north 10 to
15 knots. a chance of showers during the day. waves 3 to 5 feet
subsiding to 1 to 3 feet. 
.thursday...northeast winds 10 knots or less becoming east. waves
2 feet or less. 
.friday...east winds 10 to 15 knots. a chance of showers friday
night. waves 1 to 3 feet. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kbuf 180202
glflo 
expires:202605180900;;741003

open lake forecast for lake ontario
national weather service buffalo ny
1002 pm edt sun may 17 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...high pressure will weaken to 30.0 inches across the 
lake tonight. an area of low pressure will develop over the central 
plains monday. the low will weaken from 29.4 inches to 29.6 inches 
as it tracks northeast to the upper great lakes monday night into 
tuesday morning, then to central quebec wednesday while 
strengthening to 29.4 inches. a cold front attendant to this low 
will cross the lake late tuesday night into wednesday morning. a 
large 30.4 inch high will then build across the entire great lakes 
region wednesday night through thursday. high pressure will move to 
the east and weaken to 30.1 inches friday.


loz063>065-180900-
lake ontario open waters from hamlin beach to the saint lawrence
river-
1002 pm edt sun may 17 2026

.overnight...southeast winds 5 to 10 knots. patchy fog
after midnight. a chance of showers and thunderstorms.
waves 1 foot or less. 
.monday...south winds 5 to 15 knots. waves 2 feet or less. 
.monday night...south winds 5 to 10 knots. a chance of showers.
waves 2 feet or less. 
.tuesday...southwest winds 10 to 15 knots. a chance of showers in
the morning. waves 1 to 3 feet. 
.tuesday night...southwest winds 15 to 20 knots becoming west.
showers with a chance of thunderstorms. waves 2 to 4 feet
building to 3 to 5 feet. 
.wednesday...west winds 15 to 20 knots becoming northwest. a
chance of showers during the day. waves 3 to 6 feet. 
.thursday...north winds 5 to 15 knots becoming east less than
10 knots. waves 1 to 3 feet subsiding to 1 foot or less. 
.friday...east winds 5 to 10 knots becoming southeast. a chance
of showers friday night. waves 2 feet or less. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 180743
glfle 
expires:202605181415;;756330

open lake forecast for lake erie
national weather service cleveland oh
343 am edt mon may 18 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...
southerly flow continues across the region through tuesday. low
pressure 29.70 inches tracks through the northern great lakes on
tuesday, pulling a cold front southeast across lake erie late
tuesday night and early wednesday morning. high pressure 30.40
inches builds into the great lakes wednesday and thursday, exiting
to the east across new england on friday. 


lez061-169-181415-
ripley to buffalo ny extending from 5nm off shoreline to us-
canadian border-
conneaut oh to ripley ny beyond 5 nm off shoreline to us-
canadian border-
343 am edt mon may 18 2026

.today...south winds 5 to 15 knots becoming southwest. waves 1 to
2 feet. 
.tonight...southwest winds 5 to 10 knots. a slight chance of
showers and thunderstorms late in the evening. a chance of
showers with a slight chance of thunderstorms after midnight.
waves 1 to 2 feet. 
.tuesday...southwest winds 10 to 15 knots. waves 1 to 3 feet. 
.tuesday night...southwest winds 10 to 15 knots becoming west.
showers with thunderstorms likely in the evening, then showers
overnight. waves 2 to 3 feet. 
.wednesday...northwest winds 5 to 15 knots becoming north. waves
1 to 3 feet. 
.thursday...northeast winds 10 to 15 knots becoming east. waves
2 feet or less. 
.friday...east winds 5 to 15 knots becoming southeast. a chance
of showers during the day, then showers likely friday night.
waves 2 feet or less. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 180743
glfle 
expires:202605181415;;756328

open lake forecast for lake erie
national weather service cleveland oh
343 am edt mon may 18 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...
southerly flow continues across the region through tuesday. low
pressure 29.70 inches tracks through the northern great lakes on
tuesday, pulling a cold front southeast across lake erie late
tuesday night and early wednesday morning. high pressure 30.40
inches builds into the great lakes wednesday and thursday, exiting
to the east across new england on friday. 


lez162>164-181415-
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-
343 am edt mon may 18 2026

.today...south winds 10 to 15 knots becoming southwest 15 to
20 knots. a slight chance of showers and thunderstorms late.
waves 1 to 3 feet. 
.tonight...southwest winds 15 to 20 knots diminishing to 10 to
15 knots. a chance of showers and thunderstorms in the evening,
then a chance of showers with a slight chance of thunderstorms
after midnight. waves 1 to 3 feet. 
.tuesday...south winds 10 to 15 knots becoming southwest 15 to
20 knots. showers and thunderstorms likely in the afternoon.
waves 1 to 3 feet building to 2 to 4 feet. 
.tuesday night...southwest winds 15 to 20 knots becoming
northwest 10 to 15 knots. showers with thunderstorms likely in
the evening, then showers overnight. waves 2 to 4 feet subsiding
to 1 to 3 feet. 
.wednesday...north winds 10 to 15 knots becoming northeast 15 to
20 knots. waves 1 to 3 feet. 
.thursday...northeast winds 15 to 20 knots becoming east. waves
1 to 3 feet. 
.friday...east winds 15 to 20 knots becoming southeast 10 to
15 knots. a chance of showers during the day, then showers likely
friday night. waves 1 to 3 feet. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 180743
glfle 
expires:202605181415;;756329

open lake forecast for lake erie
national weather service cleveland oh
343 am edt mon may 18 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...
southerly flow continues across the region through tuesday. low
pressure 29.70 inches tracks through the northern great lakes on
tuesday, pulling a cold front southeast across lake erie late
tuesday night and early wednesday morning. high pressure 30.40
inches builds into the great lakes wednesday and thursday, exiting
to the east across new england on friday. 


lez165>168-181415-
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-geneva-on-
the-lake to conneaut oh beyond 5 nm off shoreline to us-
canadian border-
343 am edt mon may 18 2026

.today...south winds 10 to 15 knots becoming southwest. waves
1 to 3 feet. 
.tonight...southwest winds 10 to 15 knots. a chance of showers
and thunderstorms late in the evening. a chance of showers with a
slight chance of thunderstorms after midnight. waves 1 to 3 feet.
.tuesday...south winds 10 to 15 knots becoming southwest 15 to
20 knots. a chance of showers and thunderstorms in the afternoon.
waves 1 to 3 feet building to 2 to 4 feet. 
.tuesday night...southwest winds 15 to 20 knots becoming west
10 to 15 knots. showers with thunderstorms likely in the evening,
then showers overnight. waves 2 to 4 feet. 
.wednesday...north winds 5 to 15 knots becoming northeast 15 to
20 knots. waves 2 to 4 feet subsiding to 1 to 3 feet. 
.thursday...northeast winds 10 to 15 knots becoming east. waves
1 to 3 feet. 
.friday...east winds 10 to 15 knots becoming southeast. a chance
of showers during the day, then showers likely friday night.
waves 1 to 3 feet. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 180125
glfle 
expires:202605180830;;740123

open lake forecast for lake erie
national weather service cleveland oh
925 pm edt sun may 17 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 frontal boundary will waver north of lake erie tonight
before lifting northeast as a warm front on monday. low pressure 
of 29.60 inches will track from the upper midwest through the 
upper great lakes tuesday with a trailing cold front that will 
push across lake erie early wednesday morning. high pressure of 
30.20 inches will build over lake erie wednesday night and 
thursday.


lez061-167>169-180830-
ripley to buffalo ny extending from 5nm 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-
925 pm edt sun may 17 2026

.overnight...southeast winds 5 to 10 knots becoming south.
waves 2 feet or less. 
.monday...south winds 10 to 15 knots becoming southwest. waves
2 feet or less. 
.monday night...southwest winds 10 to 15 knots. waves 1 to
3 feet. 
.tuesday...southwest winds 10 to 15 knots increasing to 15 to
20 knots. a chance of showers in the afternoon. waves 1 to 3 feet
building to 2 to 4 feet. 
.tuesday night...southwest winds 15 to 20 knots becoming west
10 to 15 knots. showers with a chance of thunderstorms. waves
2 to 4 feet. 
.wednesday...northwest winds 10 to 15 knots becoming northeast.
waves 2 to 4 feet subsiding to 1 to 3 feet. 
.thursday...northeast winds 10 to 15 knots becoming east. waves
1 to 3 feet. 
.friday...east winds 5 to 15 knots becoming southeast. a chance
of showers. waves 1 to 3 feet. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 180125
glfle 
expires:202605180830;;740122

open lake forecast for lake erie
national weather service cleveland oh
925 pm edt sun may 17 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 frontal boundary will waver north of lake erie tonight
before lifting northeast as a warm front on monday. low pressure 
of 29.60 inches will track from the upper midwest through the 
upper great lakes tuesday with a trailing cold front that will 
push across lake erie early wednesday morning. high pressure of 
30.20 inches will build over lake erie wednesday night and 
thursday.


lez162>166-180830-
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-
avon point to willowick oh beyond 5 nm off shoreline to us-
canadian border-
925 pm edt sun may 17 2026

.overnight...south winds 10 to 15 knots. waves 2 feet or
less. 
.monday...south winds 10 to 15 knots becoming southwest 15 to
20 knots. a slight chance of showers late. waves 1 to 3 feet. 
.monday night...southwest winds 15 to 20 knots diminishing to
10 to 15 knots. waves 1 to 3 feet. 
.tuesday...south winds 10 to 15 knots becoming southwest and
increasing to 15 to 25 knots. showers likely in the afternoon.
waves 1 to 3 feet building to 2 to 4 feet. 
.tuesday night...southwest winds 15 to 20 knots becoming west
10 to 15 knots. showers with a chance of thunderstorms. waves
2 to 4 feet. 
.wednesday...north winds 10 to 15 knots becoming northeast. waves
1 to 3 feet. 
.thursday...northeast winds 10 to 15 knots becoming east. waves
1 to 3 feet. 
.friday...east winds 10 to 15 knots. a chance of showers. waves
2 to 4 feet subsiding to 1 to 3 feet. 

winds and waves higher in and near thunderstorms.

$$

fzus63 kdtx 180715
glflh 
expires:202605181515;;755524

open lake forecast for lake huron
national weather service detroit/pontiac mi
315 am edt mon may 18 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 warm front lifts across lake huron this morning,
with southerly flow expanding across all of the local waters.
strong to severe thunderstorms are possible this afternoon-
evening and again tuesday as a cold front sweeps across the
region. high pressure, 30.50 inches, then builds in mid-week.


lhz462>464-181515-
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-
315 am edt mon may 18 2026

.today...south winds 10 to 15 knots increasing to 15 to 20 knots
in the late morning and afternoon. waves 3 to 5 feet. 
.tonight...south winds 10 to 15 knots. showers likely and a
chance of thunderstorms in the evening...then a chance of showers
after midnight. waves 3 to 5 feet. 
.tuesday...south winds 15 to 20 knots. a chance of showers and
thunderstorms in the afternoon. waves 3 to 5 feet. 
.tuesday night...southwest winds 15 to 20 knots. a chance of
showers and thunderstorms in the evening. waves 4 to 6 feet.
waves occasionally around 8 feet. 
.wednesday...north winds 10 to 15 knots. waves 3 to 5 feet. 
.thursday...north winds 5 to 10 knots. waves 2 to 4 feet
subsiding to 1 to 3 feet. 
.friday...east winds 5 to 10 knots increasing to 10 to 15 knots .
waves 2 feet or less. 


$$

fzus63 kdtx 180715
glflh 
expires:202605181515;;755522

open lake forecast for lake huron
national weather service detroit/pontiac mi
315 am edt mon may 18 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 warm front lifts across lake huron this morning,
with southerly flow expanding across all of the local waters.
strong to severe thunderstorms are possible this afternoon-
evening and again tuesday as a cold front sweeps across the
region. high pressure, 30.50 inches, then builds in mid-week.


lhz361-181515-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
315 am edt mon may 18 2026

.today...southeast winds 10 to 15 knots decreasing to 5 to
10 knots in the afternoon. a chance of showers and thunderstorms
in the afternoon. waves 3 to 5 feet. 
.tonight...south winds 5 to 10 knots backing to the southeast in
the late evening and overnight. a chance of showers and
thunderstorms. waves 2 to 4 feet subsiding to 1 to 3 feet after
midnight. 
.tuesday...south winds 10 to 15 knots increasing to 15 to
20 knots in the late morning and early afternoon...then veering
to the southwest early in the afternoon. showers likely and a
chance of thunderstorms in the morning...then showers in the
afternoon. waves 3 to 5 feet building to 5 to 7 feet early in the
afternoon. waves occasionally around 10 feet. 
.tuesday night...northwest winds 20 to 25 knots. gusts to
30 knots in the late evening and overnight. waves 6 to 9 feet.
waves occasionally around 12 feet. 
.wednesday...northwest winds 20 to 25 knots with gusts to around
30 knots becoming north 5 to 10 knots. waves 6 to 9 feet
subsiding to 3 to 5 feet late in the afternoon. waves
occasionally around 12 feet. 
.thursday...light and variable winds becoming east 5 to 10 knots
. waves 2 feet or less. 
.friday...southeast winds 5 to 10 knots becoming east 10 to
15 knots. waves 1 to 3 feet. 


$$

fzus63 kdtx 180715
glflh 
expires:202605181515;;755523

open lake forecast for lake huron
national weather service detroit/pontiac mi
315 am edt mon may 18 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 warm front lifts across lake huron this morning,
with southerly flow expanding across all of the local waters.
strong to severe thunderstorms are possible this afternoon-
evening and again tuesday as a cold front sweeps across the
region. high pressure, 30.50 inches, then builds in mid-week.


lhz362-363-181515-
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-
315 am edt mon may 18 2026

.today...south winds 10 to 15 knots increasing to 15 to 20 knots
in the late morning and afternoon. a chance of showers and
thunderstorms in the afternoon. waves 4 to 6 feet. 
.tonight...south winds 15 to 20 knots decreasing to 10 to
15 knots in the late evening and overnight. a chance of showers
and thunderstorms in the evening...then a chance of showers after
midnight. waves 4 to 6 feet. waves occasionally around 8 feet. 
.tuesday...south winds 15 to 20 knots increasing to 20 to
25 knots in the late morning and afternoon. a chance of showers
in the afternoon. waves 5 to 7 feet building to 6 to 9 feet early
in the afternoon. waves occasionally around 12 feet. 
.tuesday night...southwest winds 15 to 20 knots veering to the
northwest in the late evening and overnight. a chance of showers
in the evening. waves 8 to 12 feet. waves occasionally around
15 feet. 
.wednesday...northwest winds 15 to 20 knots veering to the north
late in the afternoon...then decreasing to 10 to 15 knots late in
the evening. waves 6 to 9 feet subsiding to 3 to 5 feet late in
the evening. waves occasionally around 12 feet. 
.thursday...north winds 5 to 10 knots veering to the northeast by
midnight. waves 1 to 3 feet. 
.friday...east winds 5 to 10 knots increasing to 10 to 15 knots.
waves 2 feet or less. 


$$

fzus63 kdtx 180714
glfsc 
expires:202605181515;;755506

lake st clair forecast
national weather service detroit/pontiac mi
314 am edt mon may 18 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 warm front lifts across lake huron this morning,
with southerly flow expanding across all of the local waters.
strong to severe thunderstorms are possible this afternoon-
evening and again tuesday as a cold front sweeps across the
region. high pressure, 30.50 inches, then builds in mid-week.


lcz460-181515-
lake st clair-
314 am edt mon may 18 2026

...small craft advisory in effect from 10 am edt this morning
through this evening...

.today...south winds 10 to 15 knots increasing to 20 to 25 knots.
mostly sunny. waves 1 to 3 feet building to 2 to 4 feet late in the
afternoon.
.tonight...southwest winds 15 to 20 knots diminishing to 10 to 15
knots after midnight. mostly cloudy with a chance of showers and
thunderstorms in the evening...then partly cloudy with a chance of
light showers after midnight. waves 1 to 3 feet.
.tuesday...south winds 15 to 20 knots becoming southwest 20 to 25
knots with gusts to 30 knots in the late morning and afternoon.
partly sunny. 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 1 to 3 feet building to 2 to 4 feet in
the late morning and afternoon.
.tuesday night...west winds 15 to 20 knots veering to the northwest
after midnight. partly cloudy early in the evening becoming mostly
cloudy. light showers likely and a chance of thunderstorms ...then a
chance of light showers after midnight. waves 2 to 4 feet subsiding
to 1 to 3 feet in the late evening and overnight.
.wednesday...north winds 15 to 20 knots diminishing to 10 to 15
knots in the afternoon...then becoming northeast 15 to 20 knots in
the evening. partly cloudy. waves 2 feet or less.
.thursday...northeast winds 10 to 15 knots. mostly clear. waves 2
feet or less.
.friday...east winds 15 to 20 knots. partly cloudy. a chance of
showers. waves 2 feet or less.

$$

fzus63 kmkx 180144
glflm 
expires:202605180915;;740579

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
844 pm cdt sun may 17 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 warm front will move from southern lake michigan to northern
lake michigan throughout the night. east to northeast winds will 
become breezy out of the south. areas of dense fog may occur at 
times until the front passes. breezy south winds will then 
continue through monday and into tuesday followed by a wind shift 
to the northwest late tuesday afternoon and evening with the 
passage of a cold front. high pressure and light and variable 
winds will then take hold from late wednesday into thursday.


lmz261-362-364-366-563-565-567-868-180915-
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-
844 pm cdt sun may 17 2026

sheboygan wi to pentwater mi north...

.rest of tonight...east winds to 30 kt becoming south. patchy
fog. rain showers likely with a chance of thunderstorms through
early evening, then chance of rain showers and thunderstorms
overnight. waves 3 to 5 ft building to 5 to 8 ft occasionally to
10 ft. 
.monday...south winds to 30 kt. patchy fog. chance of showers and
thunderstorms. waves 6 to 9 ft occasionally to 12 ft. 
.monday night...south winds 15 to 25 kt. patchy fog in the
evening, then areas of fog overnight. chance of showers and
thunderstorms in the evening, then showers with a chance of
thunderstorms overnight. waves 5 to 8 ft occasionally to 10 ft. 
.tuesday...south winds to 30 kt becoming west. showers with a
chance of thunderstorms in the morning. waves 5 to 8 ft
occasionally to 10 ft. 
.tuesday night...northwest winds 15 to 25 kt. waves 4 to 6 ft
occasionally to 8 ft subsiding to 3 to 5 ft. 
.wednesday...north winds 15 to 25 kt diminishing to 10 to 20 kt.
waves 3 to 5 ft. 
.wednesday night...northeast winds 10 to 20 kt diminishing to
5 to 10 kt. waves 1 to 3 ft subsiding to 1 to 2 ft. 
.thursday...east winds 5 to 10 kt becoming northeast 10 to 20 kt.
waves 1 ft or less. 
.friday...southeast winds 10 to 15 kt becoming northeast 10 to
20 kt. waves 1 to 3 ft.  

$$

fzus63 kmkx 180144
glflm 
expires:202605180915;;740580

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
844 pm cdt sun may 17 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 warm front will move from southern lake michigan to northern
lake michigan throughout the night. east to northeast winds will 
become breezy out of the south. areas of dense fog may occur at 
times until the front passes. breezy south winds will then 
continue through monday and into tuesday followed by a wind shift 
to the northwest late tuesday afternoon and evening with the 
passage of a cold front. high pressure and light and variable 
winds will then take hold from late wednesday into thursday.


lmz080-669-671-673-675-777-779-870-872-874-876-878-180915-
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-
844 pm cdt sun may 17 2026

sheboygan wi to pentwater mi south...

.rest of tonight...variable winds 10 to 20 knots becoming southeast
winds to 30 kt becoming south. areas of fog through early 
evening, then patchy dense fog overnight. chance of rain showers 
and thunderstorms overnight. waves 3 to 5 ft building to 5 to 8 ft
occasionally to 10 ft. 
.monday...south winds to 30 kt diminishing to 15 to 25 kt. chance
of showers and thunderstorms. waves 5 to 8 ft occasionally to
10 ft. 
.monday night...south winds 15 to 25 kt increasing to 30 kt.
chance of showers and thunderstorms. waves 4 to 7 ft occasionally
to 9 ft. 
.tuesday...south winds to 30 kt becoming southwest. chance of
showers and thunderstorms in the morning, then chance of showers
in the afternoon. waves 5 to 8 ft occasionally to 10 ft. 
.tuesday night...northwest winds 10 to 20 kt becoming north.
waves 4 to 6 ft occasionally to 8 ft. 
.wednesday...north winds 10 to 20 kt increasing to 15 to 25 kt.
waves 3 to 5 ft. 
.wednesday night...northeast winds 10 to 20 kt diminishing to
10 to 15 kt. waves 3 to 5 ft subsiding to 2 to 4 ft. 
.thursday...east winds 10 to 15 kt becoming northeast 10 to
20 kt. waves 1 to 3 ft. 
.friday...east winds 10 to 15 kt becoming northeast. waves 1 to
3 ft.  

$$