fzus61 kbuf 191402
glflo 
expires:202605192100;;826073

open lake forecast for lake ontario
national weather service buffalo ny
1002 am edt tue may 19 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...an 29.6 inch area of low pressure over the upper great 
lakes this morning, will move northeast into central quebec by 
wednesday morning while strengthening to 29.4 inches. a cold front 
attendant to this low will cross the lake tonight into wednesday 
morning, bringing a round of thunderstorms to pass across the lake. 
a large 30.4 inch high will then build across the entire great lakes 
region wednesday afternoon through thursday, before sliding east off 
the new england coast late friday. a 29.9 inch low and attendant 
warm front will then slowly approach the lake later friday night and 
saturday.


loz062-192100-
lake ontario open waters from the niagara river to hamlin beach-
1002 am edt tue may 19 2026

.this afternoon...southwest winds 15 to 20 knots. waves 2 to
4 feet building to 3 to 5 feet. 
.tonight...southwest winds 15 to 20 knots becoming west. showers
with a chance of thunderstorms in the evening, then showers
likely after midnight. waves 3 to 5 feet. 
.wednesday...northwest winds 10 to 15 knots becoming west. a
chance of showers in the morning. waves 2 to 4 feet subsiding to
1 to 3 feet. 
.wednesday night...northwest winds 10 to 15 knots becoming north.
waves 1 to 3 feet. 
.thursday...northeast winds 5 to 15 knots becoming east 10 knots
or less. waves 2 feet or less. 
.friday...east winds 10 to 15 knots increasing to 15 to 20 knots.
showers likely friday night. waves 2 feet or less building to
3 to 5 feet. 
.saturday...east winds 15 to 25 knots diminishing to 10 to
15 knots. showers likely. waves 4 to 7 feet subsiding to 2 to
4 feet. waves occasionally around 9 feet. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kbuf 191402
glflo 
expires:202605192100;;826074

open lake forecast for lake ontario
national weather service buffalo ny
1002 am edt tue may 19 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...an 29.6 inch area of low pressure over the upper great 
lakes this morning, will move northeast into central quebec by 
wednesday morning while strengthening to 29.4 inches. a cold front 
attendant to this low will cross the lake tonight into wednesday 
morning, bringing a round of thunderstorms to pass across the lake. 
a large 30.4 inch high will then build across the entire great lakes 
region wednesday afternoon through thursday, before sliding east off 
the new england coast late friday. a 29.9 inch low and attendant 
warm front will then slowly approach the lake later friday night and 
saturday.


loz063>065-192100-
lake ontario open waters from hamlin beach to the saint lawrence
river-
1002 am edt tue may 19 2026

.this afternoon...southwest winds 10 to 15 knots. waves 1 to
3 feet building to 2 to 4 feet. 
.tonight...southwest winds 10 to 15 knots becoming west 15 to
20 knots. a chance of showers and thunderstorms early, then
showers with a chance of thunderstorms. a chance of showers late.
waves 2 to 4 feet. 
.wednesday...west winds 15 to 20 knots. a chance of showers in
the morning. waves 2 to 4 feet building to 3 to 6 feet. 
.wednesday night...west winds 15 to 20 knots becoming north 10 to
15 knots. waves 3 to 6 feet subsiding to 1 to 3 feet. 
.thursday...northeast winds 5 to 15 knots diminishing to less
than 10 knots. waves 1 to 3 feet subsiding to 1 foot or less. 
.friday...east winds 5 to 15 knots increasing to 15 to 20 knots.
showers likely friday night. waves 1 to 3 feet building to 2 to
4 feet. 
.saturday...east winds 15 to 25 knots becoming southeast.
showers. waves 3 to 6 feet subsiding to 2 to 4 feet. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 191804
glfle 
expires:202605192015;;301282

open lake forecast for lake erie
national weather service cleveland oh
204 pm edt tue may 19 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 cold front moves southeast across the lake tonight. high
pressure 30.40 inches moves east across the great lakes wednesday
night through thursday night. a trough averaging 30.10 inches 
lifts north into the region friday and persists into the weekend.


lez164-192015-
the islands to vermilion oh beyond 5 nm off shoreline to us-
canadian border-
204 pm edt tue may 19 2026

...severe thunderstorm watch 230 in effect until 7 pm edt this
evening...

.this afternoon...southwest winds 15 to 20 knots. a chance of
showers and thunderstorms late. some thunderstorms may be severe
with damaging winds. waves 2 to 3 feet. 
.tonight...southwest winds 15 to 20 knots becoming northwest
10 to 15 knots. showers with thunderstorms likely early, then
showers with a chance of thunderstorms. a chance of showers with
a slight chance of thunderstorms late. some thunderstorms may
produce damaging winds early. waves 1 to 3 feet. 
.wednesday...north winds 10 to 15 knots becoming northeast. waves
1 to 3 feet. 
.wednesday night...northeast winds 10 to 15 knots increasing to
15 to 20 knots. waves 1 to 3 feet. 
.thursday...northeast winds 15 to 20 knots becoming east. waves
2 to 4 feet. 
.friday...east winds 15 to 20 knots. showers likely during the
day, then showers with a chance of thunderstorms friday night.
waves 2 to 4 feet. 
.saturday...southeast winds 15 to 20 knots becoming southwest
5 to 15 knots. showers likely with a chance of thunderstorms
during the day, then a chance of showers saturday night. waves
1 to 3 feet. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 191804
glfle 
expires:202605192015;;301283

open lake forecast for lake erie
national weather service cleveland oh
204 pm edt tue may 19 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 cold front moves southeast across the lake tonight. high
pressure 30.40 inches moves east across the great lakes wednesday
night through thursday night. a trough averaging 30.10 inches 
lifts north into the region friday and persists into the weekend.


lez061-168-169-192015-
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-
204 pm edt tue may 19 2026

.this afternoon...southwest winds 10 to 15 knots. a chance of
showers and thunderstorms late. waves 2 to 3 feet. 
.tonight...southwest winds 10 to 15 knots becoming west. showers
with a chance of thunderstorms in the evening, then showers with
a slight chance of thunderstorms after midnight. waves 2 to
4 feet. 
.wednesday...northwest winds 5 to 15 knots becoming west. a
chance of showers in the morning. waves 1 to 3 feet. 
.wednesday night...northwest winds 10 to 15 knots becoming
northeast. waves 1 to 2 feet. 
.thursday...northeast winds 15 to 20 knots becoming east. waves
1 to 3 feet. 
.friday...east winds 15 to 20 knots. a chance of showers during
the day, then showers friday night. waves 1 to 3 feet. 
.saturday...east winds 15 to 20 knots becoming southeast 10 to
15 knots. showers with a chance of thunderstorms during the day,
then a chance of showers saturday night. waves 1 to 3 feet. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 191804
glfle 
expires:202605192015;;301281

open lake forecast for lake erie
national weather service cleveland oh
204 pm edt tue may 19 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 cold front moves southeast across the lake tonight. high
pressure 30.40 inches moves east across the great lakes wednesday
night through thursday night. a trough averaging 30.10 inches 
lifts north into the region friday and persists into the weekend.


lez165>167-192015-
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-
204 pm edt tue may 19 2026

.this afternoon...southwest winds 15 to 20 knots. a chance of
showers and thunderstorms late. waves 2 to 4 feet. 
.tonight...southwest winds 15 to 20 knots becoming northwest
10 to 15 knots. showers with a chance of thunderstorms through
the early overnight, then a chance of showers with a slight
chance of thunderstorms late. waves 2 to 4 feet. 
.wednesday...north winds 10 to 15 knots. waves 1 to 3 feet. 
.wednesday night...north winds 10 to 15 knots becoming northeast
15 to 20 knots. waves 1 to 3 feet building to 2 to 4 feet. 
.thursday...northeast winds 15 to 20 knots becoming east. waves
2 to 4 feet building to 3 to 5 feet, then subsiding to 2 to
4 feet. 
.friday...east winds 15 to 20 knots. a chance of showers during
the day, then showers friday night. waves 2 to 4 feet building to
3 to 5 feet, then subsiding to 2 to 4 feet. 
.saturday...east winds 15 to 20 knots becoming south 5 to
15 knots. showers with a chance of thunderstorms during the day,
then a chance of showers saturday night. waves 2 to 4 feet
subsiding to 1 to 3 feet. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 191804
glfle 
expires:202605192015;;301280

open lake forecast for lake erie
national weather service cleveland oh
204 pm edt tue may 19 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 cold front moves southeast across the lake tonight. high
pressure 30.40 inches moves east across the great lakes wednesday
night through thursday night. a trough averaging 30.10 inches 
lifts north into the region friday and persists into the weekend.


lez162-163-192015-
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-
204 pm edt tue may 19 2026

...severe thunderstorm watch 230 in effect until 7 pm edt this
evening...

.this afternoon...southwest winds 15 to 20 knots. showers and
thunderstorms likely late. some thunderstorms may be severe with
damaging winds. waves 2 to 4 feet. 
.tonight...southwest winds 15 to 20 knots becoming northwest
10 to 15 knots. showers with thunderstorms likely in the evening,
then a chance of showers and thunderstorms after midnight. some
thunderstorms may produce damaging winds early. waves 2 to 4 feet
subsiding to 1 to 3 feet. 
.wednesday...north winds 5 to 15 knots becoming east. waves 1 to
2 feet. 
.wednesday night...northeast winds 10 to 15 knots increasing to
15 to 20 knots. waves 1 to 3 feet. 
.thursday...northeast winds 15 to 20 knots becoming east. waves
1 to 3 feet building to 2 to 4 feet. 
.friday...east winds 15 to 25 knots. showers likely during the
day, then showers with a chance of thunderstorms friday night.
waves 2 to 4 feet building to 3 to 5 feet, then subsiding to 2 to
4 feet. 
.saturday...east winds 15 to 20 knots becoming south 5 to
15 knots. showers likely with a chance of thunderstorms during
the day, then a chance of showers saturday night. waves 2 to
4 feet subsiding to 2 feet or less. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 191302
glfle 
expires:202605192015;;291276

open lake forecast for lake erie
national weather service cleveland oh
902 am edt tue may 19 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 cold front moves southeast across the lake tonight. high
pressure 30.40 inches moves east across the great lakes wednesday
night through thursday night. a trough averaging 30.10 inches 
lifts north into the region friday and persists into the weekend.


lez164>167-192015-
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-willowick to geneva-on-the-
lake oh beyond 5nm off shoreline to us-canadian border-
902 am edt tue may 19 2026

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

winds and waves higher in and near thunderstorms.

$$

fzus63 kdtx 191846
glflh 
expires:202605200300;;305395

open lake forecast for lake huron
national weather service detroit/pontiac mi
246 pm edt tue may 19 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 cold front sweeps across the region this evening,
veering winds from southwest to northwest. strong to severe
thunderstorms will be possible ahead of this cold front. high
pressure, 30.50 inches, then builds in mid-week.


lhz361-200300-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
246 pm edt tue may 19 2026

.tonight...northwest winds 15 to 20 knots increasing to 20 to
25 knots early in the morning. scattered showers in the evening.
waves 5 to 7 feet. waves occasionally around 10 feet. 
.wednesday...northwest winds 20 to 25 knots with gusts to around
30 knots decreasing to 15 to 20 knots in the late morning and
afternoon. waves 5 to 7 feet. waves occasionally around 10 feet. 
.wednesday night...northwest winds 15 to 20 knots becoming north
5 to 10 knots. waves 3 to 5 feet subsiding to 1 to 3 feet after
midnight. 
.thursday...northeast winds 5 to 10 knots veering to the east in
the late morning and afternoon. waves 2 feet or less. 
.thursday night...east winds 5 to 10 knots early in the evening
becoming light and variable...then becoming east 5 to 10 knots
after midnight. waves 2 feet or less. 
.friday...east winds 5 to 10 knots increasing to 20 to 25 knots
with gusts to around 30 knots. a chance of showers late in the
evening. waves 2 feet or less building to 5 to 7 feet. waves
occasionally around 10 feet. 
.saturday...east winds to 30 knots with gusts to 35 knot gales
decreasing to 15 to 20 knots. a chance of showers. waves 6 to
9 feet subsiding to 3 to 5 feet by midnight. waves occasionally
around 12 feet. 
.sunday...east winds 10 to 15 knots becoming southeast 5 to
10 knots in the late morning and early afternoon...then becoming
north 10 to 15 knots early in the evening becoming west 5 to
10 knots by midnight. a chance of showers early in the morning.
waves 1 to 3 feet. 


$$

fzus63 kdtx 191846
glfsc 
expires:202605200300;;305447

lake st clair forecast
national weather service detroit/pontiac mi
246 pm edt tue may 19 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 cold front sweeps across the region this evening,
veering winds from southwest to northwest. strong to severe
thunderstorms will be possible ahead of this cold front. high
pressure, 30.50 inches, then builds in mid-week.


lcz460-200300-
lake st clair-
246 pm edt tue may 19 2026

...small craft advisory in effect until 10 pm edt this evening...
...severe thunderstorm watch 230 in effect until 7 pm edt this
evening...

.tonight...southwest winds 15 to 20 knots diminishing to 10 to 15
knots late in the evening...then veering to the northwest after
midnight becoming north 15 to 20 knots early in the morning. partly
cloudy this evening becoming mostly cloudy. numerous showers and
thunderstorms early in the evening.. then a chance of light showers
by midnight. some thunderstorms may produce damaging winds and large
hail early in the evening. waves 1 to 3 feet.
.wednesday...north winds 15 to 20 knots diminishing to 10 to 15
knots late in the morning...then diminishing to 5 to 10 knots early
in the afternoon becoming northeast 10 to 15 knots late in the
afternoon. mostly cloudy. waves 1 to 3 feet.
.wednesday night...northeast winds 15 to 20 knots diminishing to 10
to 15 knots after midnight. mostly cloudy early in the evening
becoming partly cloudy. waves 1 to 3 feet.
.thursday...northeast winds 10 to 15 knots. mostly sunny. waves 2
feet or less.
.thursday night...northeast winds 10 to 15 knots increasing to 15 to
20 knots after midnight. partly cloudy. waves 1 to 3 feet.
.friday...east winds 15 to 20 knots increasing to 20 to 25 knots
with gusts to 30 knots in the evening. mostly cloudy. a chance of
showers in the afternoon. rain showers likely in the evening. waves
1 to 3 feet building to 2 to 4 feet in the evening. a small craft
advisory may be needed.
.saturday...east winds 20 to 25 knots with gusts to 30 knots.
showers. waves 2 to 4 feet.
.sunday...west winds 5 to 10 knots. mostly cloudy with a chance of
showers. waves 2 feet or less.

$$

fzus63 kdtx 191846
glflh 
expires:202605200300;;305396

open lake forecast for lake huron
national weather service detroit/pontiac mi
246 pm edt tue may 19 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 cold front sweeps across the region this evening,
veering winds from southwest to northwest. strong to severe
thunderstorms will be possible ahead of this cold front. high
pressure, 30.50 inches, then builds in mid-week.


lhz362-363-462-200300-
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-
lake huron from port austin to harbor beach beyond 5nm off shore-
246 pm edt tue may 19 2026

.tonight...southwest winds 15 to 20 knots veering to the
northwest in the late evening and overnight. waves 5 to 7 feet.
waves occasionally around 10 feet. 
.wednesday...northwest winds 15 to 20 knots veering to the north
late in the afternoon. waves 6 to 9 feet. waves occasionally
around 12 feet. 
.wednesday night...north winds 15 to 20 knots decreasing to 10 to
15 knots in the late evening and overnight. waves 3 to 5 feet. 
.thursday...north winds 10 to 15 knots becoming northeast 5 to
10 knots in the late morning and afternoon. waves 2 to 4 feet
subsiding to 1 to 3 feet in the late morning and afternoon. 
.thursday night...northeast winds 5 to 10 knots. waves 1 to
3 feet. 
.friday...east winds 10 to 15 knots increasing to 15 to 20 knots
late in the afternoon. a chance of showers late in the afternoon.
waves 1 to 3 feet building to 4 to 6 feet late in the afternoon.
waves occasionally around 8 feet. 
.saturday...east winds 20 to 25 knots with gusts to around
30 knots becoming southeast 10 to 15 knots. showers likely early
in the morning...then a chance of showers . waves 4 to 6 feet. 
.sunday...southeast winds 5 to 10 knots. a chance of showers
early in the morning. waves 1 to 3 feet. waves occasionally
around 8 feet. 


$$

fzus63 kdtx 191846
glflh 
expires:202605200300;;305397

open lake forecast for lake huron
national weather service detroit/pontiac mi
246 pm edt tue may 19 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 cold front sweeps across the region this evening,
veering winds from southwest to northwest. strong to severe
thunderstorms will be possible ahead of this cold front. high
pressure, 30.50 inches, then builds in mid-week.


lhz463-464-200300-
lake huron from harbor beach to port sanilac beyond 5nm off shore-
lake huron from port sanilac to port huron beyond 5nm off shore-
246 pm edt tue may 19 2026

...severe thunderstorm watch 230 in effect until 7 pm edt this
evening...

.tonight...southwest winds 10 to 15 knots. a chance of showers
and scattered thunderstorms in the evening...then a chance of
showers after midnight. some thunderstorms may be severe with
damaging winds and large hail. waves 3 to 5 feet. 
.wednesday...north winds 10 to 15 knots. waves 4 to 6 feet. waves
occasionally around 8 feet. 
.wednesday night...north winds 10 to 15 knots. waves 3 to 5 feet.
.thursday...north winds 10 to 15 knots. waves 2 to 4 feet
subsiding to 1 to 3 feet in the late morning and afternoon. 
.thursday night...north winds 10 to 15 knots veering to the east
after midnight. waves 2 to 4 feet subsiding to 1 to 3 feet after
midnight. 
.friday...east winds 10 to 15 knots increasing to 20 to 25 knots.
a chance of showers late in the morning. rain showers likely late
in the evening. waves 2 to 4 feet building to 4 to 6 feet late in
the afternoon. waves occasionally around 8 feet. 
.saturday...east winds 20 to 25 knots decreasing to 10 to
15 knots. showers likely early in the morning...then a chance of
showers . waves 3 to 5 feet subsiding to 1 to 3 feet by midnight.
.sunday...southeast winds 5 to 10 knots becoming light and
variable. a chance of showers until afternoon. waves 2 feet or
less. 


$$

fzus63 kdtx 191357
glflh 
expires:202605192200;;825718

open lake forecast for lake huron
national weather service detroit/pontiac mi
957 am edt tue may 19 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 cold front sweeps across the region this evening,
veering winds from southwest to northwest. strong to severe
thunderstorms will be possible ahead of this cold front. high
pressure, 30.50 inches, then builds in mid-week.


lhz362-363-192200-
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-
957 am edt tue may 19 2026

...dense fog advisory in effect until 4 pm edt this afternoon...

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


$$

fzus63 kdtx 191357
glflh 
expires:202605192200;;825719

open lake forecast for lake huron
national weather service detroit/pontiac mi
957 am edt tue may 19 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 cold front sweeps across the region this evening,
veering winds from southwest to northwest. strong to severe
thunderstorms will be possible ahead of this cold front. high
pressure, 30.50 inches, then builds in mid-week.


lhz462>464-192200-
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-
957 am edt tue may 19 2026

...dense fog advisory in effect until 4 pm edt this afternoon...

.rest of today...south winds 15 to 20 knots. a chance of showers
late in the morning...then a chance of showers and thunderstorms
in the afternoon. waves 4 to 6 feet. waves occasionally around
8 feet. 
.tonight...southwest winds 15 to 20 knots becoming west 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. 
.wednesday...north winds 10 to 15 knots. a chance of showers in
the morning. waves 4 to 6 feet. 
.wednesday night...north winds 10 to 15 knots. waves 4 to 6 feet.
waves occasionally around 8 feet. 
.thursday...northeast winds 10 to 15 knots decreasing to 5 to
10 knots late in the evening. waves 2 to 4 feet subsiding to 1 to
3 feet. 
.friday...east winds 10 to 15 knots increasing to 15 to 20 knots
by midnight. a chance of showers early in the evening. rain
showers likely by midnight. waves 1 to 3 feet building to 3 to
5 feet . 
.saturday...east winds 15 to 20 knots becoming northeast 10 to
15 knots . showers likely early in the morning. a chance of
showers in the late morning and early afternoon. waves 3 to
5 feet subsiding to 2 to 4 feet by midnight. 


$$

fzus63 kmkx 191405
glflm 
expires:202605192115;;826214

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
905 am cdt tue may 19 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 dense fog advisory is in effect through noon cdt for the north 
half of the lake as relatively mild and humid air flows over the 
cold lake waters. 

otherwise modest to breezy southerly winds continue from now into
early this afternoon. the gusty winds will be followed by the 
passage of a cold front late this afternoon as low pressure of 
29.6 inches lifts from northern lake superior to central quebec. 
winds will shift to northwesterly with the cold frontal passage 
and remain a bit breezy. high pressure around 30.4 inches will 
then move into the northern great lakes for wednesday afternoon 
into thursday. light to modest north to northeast winds can be 
expected.


lmz080-669-671-673-675-777-779-870-872-874-876-878-192115-
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-
905 am cdt tue may 19 2026

sheboygan wi to pentwater mi south...

.rest of today...south winds to 30 kt becoming west 15 to 25 kt.
patchy fog late this morning. slight chance of showers late this
morning, then chance of showers and slight chance of
thunderstorms this afternoon. waves 5 to 8 ft occasionally to
10 ft subsiding to 3 to 5 ft. 
.tonight...northwest winds 10 to 20 kt becoming north 15 to
25 kt. waves 3 to 5 ft. 
.wednesday...north winds 10 to 20 kt increasing to 15 to 25 kt.
waves 4 to 6 ft occasionally to 8 ft. 
.wednesday night...northeast winds 15 to 25 kt diminishing to
10 to 20 kt. waves 4 to 6 ft occasionally to 8 ft. 
.thursday...northeast winds 10 to 20 kt. waves 2 to 4 ft. 
.thursday night...northeast winds 10 to 20 kt becoming east.
waves 3 to 5 ft. 
.friday...east winds 10 to 20 kt becoming northeast. chance of
showers. waves 3 to 5 ft. 
.saturday...northeast winds 10 to 20 kt becoming north 10 to
15 kt. waves 2 to 4 ft.  

$$

fzus63 kmkx 191405
glflm 
expires:202605192115;;826213

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
905 am cdt tue may 19 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 dense fog advisory is in effect through noon cdt for the north 
half of the lake as relatively mild and humid air flows over the 
cold lake waters. 

otherwise modest to breezy southerly winds continue from now into
early this afternoon. the gusty winds will be followed by the 
passage of a cold front late this afternoon as low pressure of 
29.6 inches lifts from northern lake superior to central quebec. 
winds will shift to northwesterly with the cold frontal passage 
and remain a bit breezy. high pressure around 30.4 inches will 
then move into the northern great lakes for wednesday afternoon 
into thursday. light to modest north to northeast winds can be 
expected.


lmz261-362-364-366-563-565-567-868-192115-
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-
905 am cdt tue may 19 2026

sheboygan wi to pentwater mi north...

...dense fog advisory in effect until noon cdt today...

.rest of today...south winds to 30 kt veering to west 15 to
25 kt. areas of dense fog late this morning, then patchy fog this
afternoon. slight chance of showers late this morning, then
chance of showers this afternoon. waves 5 to 8 ft occasionally to
10 ft subsiding to 4 to 6 ft occasionally to 8 ft. 
.tonight...northwest winds 15 to 25 kt diminishing to 10 to
20 kt. waves 3 to 5 ft subsiding to 2 to 4 ft. 
.wednesday...north winds 10 to 20 kt becoming northeast 15 to
25 kt. waves 2 to 4 ft. 
.wednesday night...northeast winds 10 to 20 kt diminishing to
10 to 15 kt. waves 2 to 4 ft subsiding to 1 to 2 ft. 
.thursday...northeast winds 10 to 15 kt increasing to 10 to
20 kt. waves 1 to 3 ft. 
.thursday night...northeast winds 10 to 20 kt becoming east 10 to
15 kt. waves 1 to 3 ft. 
.friday...east winds 10 to 20 kt becoming northeast 15 to 25 kt.
waves 1 to 3 ft building to 3 to 5 ft. 
.saturday...northeast winds to 30 kt diminishing to 15 to 25 kt.
waves 3 to 5 ft.  

$$

fzus63 kmqt 191401
glfls 
expires:202605192000;;825964

open lake forecast for lake superior
national weather service marquette mi
1001 am edt tue may 19 2026

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

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

.synopsis... 

a 29.7 inch low over eastern lake superior this morning moves to the 
ontario/quebec line south of james bay at 29.6 inches by this 
evening. afterwards, a 30.2 inch high over the northern plains 
builds to 30.4 inches tonight into wednesday as it tracks eastward 
into the upper great lakes. the high pressure shifts east on 
thursday while leaving lingering ridging of at least 30.2 inches 
over lake superior into friday. a 29.9 inch low lifts into the lower 
great lakes from the southern plains on saturday, but 30.1 inch 
ridging persists over lake superior.



lsz265-192000-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
1001 am edt tue may 19 2026

...dense fog advisory in effect until 11 am edt this morning...

.rest of today...west winds 20 to 30 knots becoming northwest
15 to 25 knots late. patchy fog by late morning. a slight chance
of rain showers by late morning. waves 2 to 4 feet building to
3 to 5 feet occasionally to 7 feet, then subsiding to 2 to
4 feet. 
.tonight...northwest winds 15 to 25 knots diminishing to 10 to
20 knots late. waves 2 to 4 feet. 
.wednesday...northwest winds 10 to 20 knots veering north in the
afternoon, then becoming southeast 5 to 15 knots late. waves
subsiding to calm to 2 feet. 
.wednesday night...south winds 5 to 15 knots. waves calm to
2 feet. 
.thursday...southeast winds 5 to 15 knots becoming east 10 to
20 knots by mid afternoon. waves building to 1 to 3 feet. 
.thursday night...southeast winds 10 to 20 knots becoming south
5 to 15 knots after midnight. waves subsiding to calm to 2 feet. 
.friday...east winds 10 to 20 knots. waves building to 1 to
3 feet. 
.saturday...east winds 10 to 20 knots veering southeast. waves
building to 2 to 4 feet, then subsiding to calm to 2 feet. 

$$

fzus63 kmqt 191401
glfls 
expires:202605192000;;825963

open lake forecast for lake superior
national weather service marquette mi
1001 am edt tue may 19 2026

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

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

.synopsis... 

a 29.7 inch low over eastern lake superior this morning moves to the 
ontario/quebec line south of james bay at 29.6 inches by this 
evening. afterwards, a 30.2 inch high over the northern plains 
builds to 30.4 inches tonight into wednesday as it tracks eastward 
into the upper great lakes. the high pressure shifts east on 
thursday while leaving lingering ridging of at least 30.2 inches 
over lake superior into friday. a 29.9 inch low lifts into the lower 
great lakes from the southern plains on saturday, but 30.1 inch 
ridging persists over lake superior.



lsz264-192000-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
1001 am edt tue may 19 2026

...dense fog advisory in effect until 11 am edt this morning...

.rest of today...northwest winds 10 to 20 knots increasing to
15 to 25 knots in the afternoon, then diminishing to 10 to
20 knots late. a slight chance of rain showers by late morning.
waves 3 to 5 feet occasionally to 7 feet. 
.tonight...north winds 10 to 20 knots backing northwest after
midnight. waves subsiding to 1 to 3 feet. 
.wednesday...northwest winds 5 to 15 knots backing southwest
late. waves subsiding to calm to 2 feet. 
.wednesday night...south winds 5 to 15 knots. waves calm to
2 feet. 
.thursday...south winds 5 to 15 knots backing southeast by mid
afternoon. waves calm to 2 feet. 
.thursday night...southeast winds 5 to 15 knots veering south
after midnight. waves calm to 2 feet. 
.friday...east winds 5 to 15 knots increasing to 10 to 20 knots.
waves calm to 2 feet. 
.saturday...east winds 5 to 15 knots veering southeast. waves
building to 1 to 3 feet, then subsiding to calm to 2 feet. 

$$

fzus63 kmqt 191401
glfls 
expires:202605192000;;825966

open lake forecast for lake superior
national weather service marquette mi
1001 am edt tue may 19 2026

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

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

.synopsis... 

a 29.7 inch low over eastern lake superior this morning moves to the 
ontario/quebec line south of james bay at 29.6 inches by this 
evening. afterwards, a 30.2 inch high over the northern plains 
builds to 30.4 inches tonight into wednesday as it tracks eastward 
into the upper great lakes. the high pressure shifts east on 
thursday while leaving lingering ridging of at least 30.2 inches 
over lake superior into friday. a 29.9 inch low lifts into the lower 
great lakes from the southern plains on saturday, but 30.1 inch 
ridging persists over lake superior.



lsz267-192000-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
1001 am edt tue may 19 2026

...dense fog advisory in effect until 2 pm edt this afternoon...

.rest of today...south winds 15 to 25 knots becoming west 20 to
30 knots in the afternoon, then veering northwest late. patchy
dense fog. a chance of rain showers. waves 2 to 4 feet building
to 3 to 6 feet occasionally to 8 feet. 
.tonight...northwest winds 20 to 30 knots. waves building to 4 to
7 feet occasionally to 9 feet, then subsiding to 3 to 6 feet
occasionally to 8 feet. 
.wednesday...northwest winds 15 to 25 knots diminishing to 10 to
20 knots late. waves subsiding to 2 to 4 feet. 
.wednesday night...northwest winds 5 to 15 knots backing west
after midnight. waves subsiding to calm to 2 feet. 
.thursday...south winds 5 to 15 knots backing east by mid
afternoon. waves calm to 2 feet. 
.thursday night...southeast winds 5 to 15 knots. waves calm to
2 feet. 
.friday...east winds 5 to 15 knots increasing to 10 to 20 knots.
waves calm to 2 feet. 
.saturday...east winds 10 to 20 knots becoming southeast 5 to
15 knots. waves building to 1 to 3 feet, then subsiding to calm
to 2 feet. 

$$

fzus63 kmqt 191401
glfls 
expires:202605192000;;825961

open lake forecast for lake superior
national weather service marquette mi
1001 am edt tue may 19 2026

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

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

.synopsis... 

a 29.7 inch low over eastern lake superior this morning moves to the 
ontario/quebec line south of james bay at 29.6 inches by this 
evening. afterwards, a 30.2 inch high over the northern plains 
builds to 30.4 inches tonight into wednesday as it tracks eastward 
into the upper great lakes. the high pressure shifts east on 
thursday while leaving lingering ridging of at least 30.2 inches 
over lake superior into friday. a 29.9 inch low lifts into the lower 
great lakes from the southern plains on saturday, but 30.1 inch 
ridging persists over lake superior.



lsz162-192000-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
1001 am edt tue may 19 2026 /901 am cdt tue may 19 2026/

.rest of today...west winds 10 to 20 knots. waves 2 to 4 feet
subsiding to 1 to 3 feet. 
.tonight...northwest winds 10 to 20 knots diminishing to 5 to
15 knots after midnight. waves subsiding to calm to 2 feet. 
.wednesday...west winds 5 to 15 knots backing south in the
afternoon. waves calm to 2 feet. 
.wednesday night...southeast winds 5 to 15 knots. waves calm to
2 feet. 
.thursday...southeast winds 5 to 15 knots backing east by mid
afternoon. waves calm to 2 feet. 
.thursday night...east winds 5 to 15 knots. waves calm to 2 feet.
.friday...northeast winds 10 to 20 knots. waves building to 2 to
4 feet, then subsiding to calm to 2 feet. 
.saturday...northeast winds 5 to 15 knots. a chance of rain
showers. waves calm to 2 feet. 

$$

fzus63 kmqt 191401
glfls 
expires:202605192000;;825962

open lake forecast for lake superior
national weather service marquette mi
1001 am edt tue may 19 2026

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

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

.synopsis... 

a 29.7 inch low over eastern lake superior this morning moves to the 
ontario/quebec line south of james bay at 29.6 inches by this 
evening. afterwards, a 30.2 inch high over the northern plains 
builds to 30.4 inches tonight into wednesday as it tracks eastward 
into the upper great lakes. the high pressure shifts east on 
thursday while leaving lingering ridging of at least 30.2 inches 
over lake superior into friday. a 29.9 inch low lifts into the lower 
great lakes from the southern plains on saturday, but 30.1 inch 
ridging persists over lake superior.



lsz263-192000-
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-
1001 am edt tue may 19 2026

.rest of today...west winds 10 to 20 knots diminishing to 5 to
15 knots in the afternoon, then increasing to 10 to 20 knots
late. waves 3 to 5 feet occasionally to 7 feet subsiding to 2 to
4 feet. 
.tonight...northwest winds 10 to 20 knots diminishing to 5 to
15 knots after midnight. waves subsiding to calm to 2 feet. 
.wednesday...northwest winds 5 to 15 knots backing southwest in
the afternoon, then backing south late. waves calm to 2 feet. 
.wednesday night...southeast winds 5 to 15 knots veering south
after midnight. waves calm to 2 feet. 
.thursday...south winds 5 to 15 knots backing east by mid
afternoon. waves calm to 2 feet. 
.thursday night...southeast winds 5 to 15 knots veering south
after midnight. waves calm to 2 feet. 
.friday...east winds 10 to 20 knots. waves building to 2 to
4 feet, then subsiding to calm to 2 feet. 
.saturday...east winds 5 to 15 knots. waves calm to 2 feet. 

$$

fzus63 kmqt 191401
glfls 
expires:202605192000;;825965

open lake forecast for lake superior
national weather service marquette mi
1001 am edt tue may 19 2026

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

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

.synopsis... 

a 29.7 inch low over eastern lake superior this morning moves to the 
ontario/quebec line south of james bay at 29.6 inches by this 
evening. afterwards, a 30.2 inch high over the northern plains 
builds to 30.4 inches tonight into wednesday as it tracks eastward 
into the upper great lakes. the high pressure shifts east on 
thursday while leaving lingering ridging of at least 30.2 inches 
over lake superior into friday. a 29.9 inch low lifts into the lower 
great lakes from the southern plains on saturday, but 30.1 inch 
ridging persists over lake superior.



lsz266-192000-
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-
1001 am edt tue may 19 2026

...dense fog advisory in effect until 11 am edt this morning...

.rest of today...west winds 20 to 30 knots veering northwest in
the afternoon. patchy fog by late morning. a slight chance of
rain showers. waves 3 to 6 feet occasionally to 8 feet. 
.tonight...northwest winds 20 to 30 knots diminishing to 15 to
25 knots late. waves building to 4 to 7 feet occasionally to
9 feet, then subsiding to 3 to 6 feet occasionally to 8 feet. 
.wednesday...northwest winds 15 to 25 knots diminishing to 10 to
20 knots in the afternoon, then becoming west 5 to 15 knots late.
waves subsiding to calm to 2 feet. 
.wednesday night...west winds 5 to 15 knots backing south after
midnight. waves calm to 2 feet. 
.thursday...south winds 5 to 15 knots backing southeast by mid
afternoon. waves calm to 2 feet. 
.thursday night...southeast winds 10 to 20 knots veering south
after midnight. waves calm to 2 feet. 
.friday...east winds 10 to 20 knots. waves building to 1 to
3 feet. 
.saturday...east winds 10 to 20 knots veering southeast. waves
building to 2 to 4 feet, then subsiding to calm to 2 feet. 

$$