fzus61 kbuf 012002
glflo 
expires:202607020300;;240472

open lake forecast for lake ontario
national weather service buffalo ny
402 pm edt wed jul 1 2026

for waters beyond five nautical miles of shore on lake ontario

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

.synopsis...a 30.1 inch high will remain anchored from the ohio 
valley to the mid atlantic and extend a ridge over lake ontario 
through friday. on saturday through saturday night, a weak cold 
front will move slowly southward across lake ontario. behind the 
front, a high pressure ridge averaging 30.0 inches should build from 
the northern great lakes through monday.


loz063>065-020300-
lake ontario open waters from hamlin beach to the saint lawrence
river-
402 pm edt wed jul 1 2026

.tonight...southwest winds 5 to 15 knots. a chance of showers and
thunderstorms late this evening. waves 1 to 2 feet. 
.thursday...southwest winds 5 to 15 knots becoming west. waves
1 to 3 feet. 
.thursday night...west winds 5 to 15 knots. a chance of showers
overnight. waves 1 to 3 feet. 
.friday...west winds 5 to 15 knots. a chance of showers. waves
1 to 2 feet. 
.friday night...west winds 5 to 15 knots. a chance of showers in
the evening, then a chance of showers and thunderstorms
overnight. waves 1 to 3 feet. 
.saturday...west winds 10 knots or less becoming northeast. a
chance of showers and thunderstorms. waves 2 feet or less. 
.sunday...northeast winds 10 knots or less. a chance of showers.
waves 1 foot or less. 
.monday...northeast winds 10 knots or less becoming south. a
chance of showers during the day. waves 1 foot or less. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kbuf 012002
glflo 
expires:202607020300;;240471

open lake forecast for lake ontario
national weather service buffalo ny
402 pm edt wed jul 1 2026

for waters beyond five nautical miles of shore on lake ontario

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

.synopsis...a 30.1 inch high will remain anchored from the ohio 
valley to the mid atlantic and extend a ridge over lake ontario 
through friday. on saturday through saturday night, a weak cold 
front will move slowly southward across lake ontario. behind the 
front, a high pressure ridge averaging 30.0 inches should build from 
the northern great lakes through monday.


loz062-020300-
lake ontario open waters from the niagara river to hamlin beach-
402 pm edt wed jul 1 2026

.tonight...southwest winds 10 to 15 knots. waves 1 to 3 feet. 
.thursday...southwest winds 10 to 15 knots. waves 1 to 3 feet. 
.thursday night...southwest winds 5 to 15 knots becoming west.
waves 1 to 3 feet. 
.friday...west winds 5 to 15 knots. a chance of showers and
thunderstorms in the afternoon. waves 1 to 2 feet. 
.friday night...west winds 5 to 15 knots. a chance of showers and
thunderstorms in the evening, then a chance of showers overnight.
waves 2 feet or less. 
.saturday...west winds 10 knots or less becoming northeast. a
chance of showers and thunderstorms. waves 1 foot or less. 
.sunday...east winds 5 to 10 knots becoming northeast. a chance
of showers. waves 1 foot or less. 
.monday...northeast winds 10 knots or less becoming east. a
chance of showers during the day. waves 1 foot or less. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 011940
glfle 
expires:202607020215;;239586

open lake forecast for lake erie
national weather service cleveland oh
340 pm edt wed jul 1 2026

for waters beyond five nautical miles of shore on lake erie

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

.synopsis...
a ridge averaging 30.00 inches will remain over the area through 
friday. a weak trough averaging 29.90 inches will settle south
across lake erie friday night into saturday.


lez061-165>169-020215-
ripley to buffalo ny extending from 5nm 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-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-
340 pm edt wed jul 1 2026

.tonight...southwest winds 5 to 15 knots. waves 1 to 3 feet. 
.thursday...southwest winds 10 to 15 knots. waves 1 to 3 feet. 
.thursday night...southwest winds 5 to 10 knots. waves 1 to
2 feet. 
.friday...southwest winds 5 to 10 knots becoming west. waves
2 feet or less. 
.friday night...southwest winds 5 to 10 knots. a chance of
showers and thunderstorms in the evening, then showers likely
with a chance of thunderstorms overnight. waves 2 feet or less. 
.saturday...west winds 10 knots or less becoming south. a chance
of showers and thunderstorms. waves 1 foot or less. 
.sunday...southwest winds 5 to 10 knots becoming northeast. a
chance of showers and thunderstorms. waves 1 foot or less. 
.monday...north winds 5 to 10 knots becoming northeast. waves
1 foot or less. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 011940
glfle 
expires:202607020215;;239585

open lake forecast for lake erie
national weather service cleveland oh
340 pm edt wed jul 1 2026

for waters beyond five nautical miles of shore on lake erie

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

.synopsis...
a ridge averaging 30.00 inches will remain over the area through 
friday. a weak trough averaging 29.90 inches will settle south
across lake erie friday night into saturday.


lez162>164-020215-
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-
340 pm edt wed jul 1 2026

.tonight...southwest winds 5 to 10 knots. waves around 1 foot. 
.thursday...southwest winds 5 to 15 knots. waves 1 to 2 feet. 
.thursday night...southwest winds 5 to 10 knots becoming west.
waves 2 feet or less. 
.friday...west winds 5 to 10 knots becoming southwest. a chance
of showers in the afternoon. waves 1 foot or less. 
.friday night...west winds 5 to 10 knots. a chance of showers and
thunderstorms. waves 1 foot or less. 
.saturday...west winds 5 to 10 knots becoming south. showers
likely with a chance of thunderstorms. waves 1 foot or less. 
.sunday...southwest winds 5 to 10 knots becoming north. a chance
of showers and thunderstorms during the day, then a chance of
showers sunday night. waves 1 foot or less. 
.monday...north winds 5 to 10 knots becoming east. a chance of
showers monday night. waves 1 foot or less. 

winds and waves higher in and near thunderstorms.

$$

fzus63 kdtx 011939
glflh 
expires:202607020400;;239532

open lake forecast for lake huron
national weather service detroit/pontiac mi
339 pm edt wed jul 1 2026

for waters beyond five nautical miles off shore on lake huron

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

.synopsis...high pressure, 30.10 inches, persists over the central
appalachians through friday. this will maintain a hot and humid
airmass in place over the central great lakes with light to
moderate south to southwest winds. there will also be a low
chance of showers and thunderstorms from time to time.


lhz362-363-020400-
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-
339 pm edt wed jul 1 2026

.tonight...south winds 5 to 10 knots increasing to 10 to 15 knots
after midnight. a chance of showers and thunderstorms in the
evening...then a chance of showers after midnight. waves 1 to
3 feet. 
.thursday...southwest winds 10 to 15 knots becoming south 5 to
10 knots in the afternoon. waves 2 to 4 feet. 
.thursday night...light and variable winds. waves 1 to 3 feet. 
.friday...light and variable winds. a chance of showers and
thunderstorms in the afternoon. waves 2 feet or less. 
.friday night...light and variable winds becoming northeast 5 to
10 knots by midnight...then backing to the west after midnight. a
chance of showers. waves 2 feet or less. 
.saturday...northwest winds 5 to 10 knots in the morning becoming
light and variable. a chance of showers late in the afternoon.
waves 2 feet or less. 
.sunday...northeast winds 5 to 10 knots backing to the north . a
chance of showers. waves 2 feet or less. 
.monday...north winds 5 to 10 knots becoming light and variable.
waves 2 feet or less. 


$$

fzus63 kdtx 011939
glfsc 
expires:202607020400;;239535

lake st clair forecast
national weather service detroit/pontiac mi
339 pm edt wed jul 1 2026

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

.synopsis...high pressure, 30.10 inches, persists over the central
appalachians through friday. this will maintain a hot and humid
airmass in place over the central great lakes with light to
moderate south to southwest winds. there will also be a low
chance of showers and thunderstorms from time to time.


lcz460-020400-
lake st clair-
339 pm edt wed jul 1 2026

.tonight...southwest winds 10 to 15 knots diminishing to 5 to 10
knots early in the morning. clear. waves 2 feet or less.
.thursday...southwest winds 5 to 10 knots increasing to 10 to 15
knots in the late morning and afternoon. sunny. waves 2 feet or
less.
.thursday night...west winds 10 to 15 knots diminishing to 5 to 10
knots in the late evening and overnight. mostly clear. waves 2 feet
or less.
.friday...west winds 5 to 10 knots. mostly sunny. light showers
likely and a chance of thunderstorms early in the afternoon. waves 2
feet or less.
.friday night...west winds 5 to 10 knots. partly cloudy. light
showers likely and a chance of thunderstorms ...then a chance of
light showers after midnight. waves 2 feet or less.
.saturday...west winds 5 to 10 knots veering to the northeast in the
evening. partly sunny in the morning...then partly cloudy with light
showers likely and a chance of thunderstorms in the afternoon and
evening. waves 2 feet or less.
.sunday...north winds 5 to 10 knots. partly cloudy. showers likely
and a chance of thunderstorms. waves 2 feet or less.
.monday...northeast winds 5 to 10 knots. partly cloudy. waves 2 feet
or less.

$$

fzus63 kdtx 011939
glflh 
expires:202607020400;;239531

open lake forecast for lake huron
national weather service detroit/pontiac mi
339 pm edt wed jul 1 2026

for waters beyond five nautical miles off shore on lake huron

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

.synopsis...high pressure, 30.10 inches, persists over the central
appalachians through friday. this will maintain a hot and humid
airmass in place over the central great lakes with light to
moderate south to southwest winds. there will also be a low
chance of showers and thunderstorms from time to time.


lhz361-020400-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
339 pm edt wed jul 1 2026

.tonight...north winds 5 to 10 knots veering to the south by
midnight...then becoming southwest 10 to 15 knots early in the
morning. showers likely and a chance of thunderstorms in the
evening...then a chance of showers and thunderstorms after
midnight. waves 1 to 3 feet. 
.thursday...west winds 10 to 15 knots. waves 1 to 3 feet. 
.thursday night...west winds 5 to 10 knots. waves 1 to 3 feet. 
.friday...west winds 5 to 10 knots. waves 2 feet or less. 
.friday night...west winds 5 to 10 knots veering to the northwest
after midnight. a chance of showers. waves 2 feet or less. 
.saturday...northwest winds 5 to 10 knots veering to the
northeast late in the morning...then becoming light and variable
late in the afternoon becoming east 5 to 10 knots late in the
evening. a chance of showers in the morning. a chance of showers
late in the afternoon. waves 2 feet or less. 
.sunday...east winds 5 to 10 knots. a chance of showers early in
the morning. waves 2 feet or less. 
.monday...north winds 5 to 10 knots backing to the southwest by
midnight. waves 2 feet or less. 


$$

fzus63 kdtx 011939
glflh 
expires:202607020400;;239533

open lake forecast for lake huron
national weather service detroit/pontiac mi
339 pm edt wed jul 1 2026

for waters beyond five nautical miles off shore on lake huron

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

.synopsis...high pressure, 30.10 inches, persists over the central
appalachians through friday. this will maintain a hot and humid
airmass in place over the central great lakes with light to
moderate south to southwest winds. there will also be a low
chance of showers and thunderstorms from time to time.


lhz462>464-020400-
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-
339 pm edt wed jul 1 2026

.tonight...south winds 5 to 10 knots becoming southwest 10 to
15 knots after midnight. waves 1 to 3 feet. 
.thursday...southwest winds 10 to 15 knots backing to the east
late in the afternoon. waves 1 to 3 feet. 
.thursday night...southwest winds 5 to 10 knots. waves 1 to
3 feet. 
.friday...southwest winds 5 to 10 knots. showers likely and a
chance of thunderstorms in the afternoon. waves 2 feet or less. 
.friday night...south winds 5 to 10 knots veering to the west
after midnight. showers likely and a chance of thunderstorms.
waves 2 feet or less. 
.saturday...northwest winds 5 to 10 knots veering to the north.
showers likely in the morning. a chance of showers. waves 2 feet
or less. 
.sunday...north winds 5 to 10 knots. a chance of showers. waves
2 feet or less. 
.monday...north winds 5 to 10 knots. waves 2 feet or less. 


$$

fzus63 kmkx 012002
glflm 
expires:202607020315;;240476

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
302 pm cdt wed jul 1 2026

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

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

.synopsis...

high pressure around 30.1 inches will remain parked over the 
southern appalachian mountains into the weekend. meanwhile, a low 
pressure system around 29.5 inches in west central manitoba slowly 
moves east toward james bay by friday. breezy south to southwest 
winds will persist through thursday. southwest winds will weaken 
becoming light thursday night through friday. heading into the 
weekend, high pressure in the appalachian range will gradually 
shift east. as the high pressure pulls away, there is a potential 
for low pressure around 29.7 inches to move into the great lakes 
region for the weekend. 

chances for thunderstorms (50-60%) remain across the northern half 
of the lake through tonight. tonight into thursday morning there is 
a small chance (~20%) for rain and storms across the southern half. 
the chances for storms will persist through thursday afternoon 
through friday evening across the southern two thirds of the lake. 
additional chances for rain/storms remains across the entire lake 
saturday and sunday.strong to severe storms may occur at times, 
though confidence remains low in timing of stronger storms.

patchy marine fog will be possible at times, primarily over the 
northern half of the lake as the warm and moist airmass moves over 
the lake. 


lmz080-669-671-673-675-777-779-870-872-874-876-878-020315-
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-
302 pm cdt wed jul 1 2026

sheboygan wi to pentwater mi south...

.tonight...south winds 15 to 25 kt becoming southwest 10 to
20 kt. chance of showers and thunderstorms overnight. waves 4 to
6 ft occasionally to 8 ft. 
.thursday...southwest winds 10 to 20 kt becoming south 10 to
15 kt. chance of showers in the morning, then slight chance of
showers and thunderstorms in the afternoon. waves 3 to 5 ft
subsiding to 2 to 4 ft. 
.thursday night...south winds 10 to 15 kt becoming southwest 5 to
10 kt. chance of showers and thunderstorms in the evening, then
chance of showers overnight. waves 1 to 3 ft. 
.friday...southwest winds 10 to 15 kt becoming south. chance of
showers. waves 1 to 2 ft. 
.friday night...southwest winds 5 to 10 kt becoming west. showers
likely with a chance of thunderstorms. waves 1 to 2 ft.
.saturday...southeast winds 10 to 15 kt becoming east 10 to
20 kt. chance of showers in the morning, then chance of showers
and thunderstorms in the afternoon. waves 1 to 2 ft. 
.saturday night...northwest winds 10 to 15 kt becoming west.
showers likely with a chance of thunderstorms. waves 1 to 2 ft.
.sunday...northwest winds 10 to 15 kt becoming north. waves 1 to
3 ft. 
.monday...northeast winds 10 to 15 kt becoming north 10 to 20 kt.
waves 1 to 2 ft.  

$$

fzus63 kmkx 012002
glflm 
expires:202607020315;;240475

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
302 pm cdt wed jul 1 2026

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

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

.synopsis...

high pressure around 30.1 inches will remain parked over the 
southern appalachian mountains into the weekend. meanwhile, a low 
pressure system around 29.5 inches in west central manitoba slowly 
moves east toward james bay by friday. breezy south to southwest 
winds will persist through thursday. southwest winds will weaken 
becoming light thursday night through friday. heading into the 
weekend, high pressure in the appalachian range will gradually 
shift east. as the high pressure pulls away, there is a potential 
for low pressure around 29.7 inches to move into the great lakes 
region for the weekend. 

chances for thunderstorms (50-60%) remain across the northern half 
of the lake through tonight. tonight into thursday morning there is 
a small chance (~20%) for rain and storms across the southern half. 
the chances for storms will persist through thursday afternoon 
through friday evening across the southern two thirds of the lake. 
additional chances for rain/storms remains across the entire lake 
saturday and sunday.strong to severe storms may occur at times, 
though confidence remains low in timing of stronger storms.

patchy marine fog will be possible at times, primarily over the 
northern half of the lake as the warm and moist airmass moves over 
the lake. 


lmz261-362-364-366-563-565-567-868-020315-
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-
302 pm cdt wed jul 1 2026

sheboygan wi to pentwater mi north...

.tonight...south winds 15 to 25 kt becoming southwest 10 to
20 kt. chance of showers and thunderstorms. waves 4 to 6 ft
occasionally to 8 ft. 
.thursday...southwest winds 10 to 20 kt. patchy fog in the
morning. slight chance of showers and thunderstorms in the
morning. waves 3 to 5 ft subsiding to 2 to 4 ft. 
.thursday night...southwest winds 10 to 20 kt diminishing to 5 to
10 kt. waves 2 to 4 ft subsiding to 1 to 2 ft. 
.friday...southwest winds 10 to 15 kt. chance of showers in the
afternoon. waves 1 to 2 ft. 
.friday night...west winds 10 to 15 kt veering to north 5 to
10 kt. showers likely in the evening, then chance of showers
overnight. waves 1 to 2 ft. 
.saturday...northeast winds 10 to 15 kt increasing to 10 to
20 kt. chance of showers. waves 1 to 2 ft. 
.saturday night...northeast winds 10 to 15 kt. showers likely.
waves 1 to 2 ft. 
.sunday...northeast winds 10 to 20 kt. chance of showers. waves
1 to 2 ft. 
.monday...northeast winds 10 to 15 kt becoming north 10 to 20 kt.
waves 1 to 2 ft.  

$$

fzus63 kmkx 011614
glflm 
expires:202607020300;;229077

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
1114 am cdt wed jul 1 2026

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

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

.synopsis...

high pressure around 30.1 inches will remain to the southeast of 
the great lakes, while low pressure around 29.5 inches moves 
slowly east across central manitoba into james bay. breezy south 
to southwest winds will persist through thursday, with lighter 
winds thursday night into friday. 

chances for thunderstorms are forecast across the northern half 
of the lake the remainder of this morning through tonight. there 
are chances for thunderstorms across the southern two thirds of 
the lake thursday into friday evening, and across the southern 
half of the lake later friday night into sunday. strong to severe
storms may occur at times, though confidence remains low in 
timing of stronger storms.

patchy marine fog will be possible at times, primarily over the 
northern half of the lake as the warm and moist airmass moves 
over the lake.


lmz261-563-020300-
lake michigan from seul choix point to rock island passage 5 nm
offshore to mid lake-
lake michigan from rock island passage to sturgeon bay wi-
1114 am cdt wed jul 1 2026

sturgeon bay wi to point betsie mi north...

.tonight...south winds 15 to 25 kt becoming southwest. chance of
showers and thunderstorms. waves 3 to 5 ft. 
.thursday...southwest winds 15 to 25 kt. patchy fog in the
morning, then patchy dense fog in the afternoon. chance of
showers in the afternoon. waves 3 to 5 ft. 
.thursday night...southwest winds 10 to 20 kt diminishing to
10 to 15 kt. chance of showers. waves 1 to 3 ft. 
.friday...southwest winds 10 to 15 kt increasing to 10 to 20 kt.
chance of showers. waves 1 to 2 ft. 
.friday night...west winds 10 to 15 kt veering to north 5 to
10 kt. showers likely with a chance of thunderstorms. waves 1 to
2 ft. 
.saturday...northeast winds 10 to 15 kt becoming north 10 to
20 kt. waves 1 to 2 ft. 
.sunday...northeast winds 10 to 15 kt increasing to 10 to 20 kt.
waves 1 to 2 ft.  

$$

fzus63 kmkx 011614
glflm 
expires:202607020300;;229078

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
1114 am cdt wed jul 1 2026

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

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

.synopsis...

high pressure around 30.1 inches will remain to the southeast of 
the great lakes, while low pressure around 29.5 inches moves 
slowly east across central manitoba into james bay. breezy south 
to southwest winds will persist through thursday, with lighter 
winds thursday night into friday. 

chances for thunderstorms are forecast across the northern half 
of the lake the remainder of this morning through tonight. there 
are chances for thunderstorms across the southern two thirds of 
the lake thursday into friday evening, and across the southern 
half of the lake later friday night into sunday. strong to severe
storms may occur at times, though confidence remains low in 
timing of stronger storms.

patchy marine fog will be possible at times, primarily over the 
northern half of the lake as the warm and moist airmass moves 
over the lake.


lmz565-567-020300-
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-
1114 am cdt wed jul 1 2026

sturgeon bay wi to point betsie mi south to sheboygan wi to
pentwater mi...

...severe thunderstorm watch 429 in effect until 4 pm cdt this
afternoon...

.tonight...south winds 15 to 25 kt becoming southwest. chance of
showers and thunderstorms. waves 3 to 5 ft. 
.thursday...southwest winds 15 to 25 kt. patchy fog in the
morning, then patchy dense fog in the afternoon. chance of
showers in the afternoon. waves 3 to 5 ft. 
.thursday night...southwest winds 10 to 20 kt diminishing to
10 to 15 kt. chance of showers. waves 1 to 3 ft. 
.friday...southwest winds 10 to 15 kt increasing to 10 to 20 kt.
chance of showers. waves 1 to 2 ft. 
.friday night...west winds 10 to 15 kt veering to north 5 to
10 kt. showers likely with a chance of thunderstorms. waves 1 to
2 ft. 
.saturday...northeast winds 10 to 15 kt becoming north 10 to
20 kt. waves 1 to 2 ft. 
.sunday...northeast winds 10 to 15 kt increasing to 10 to 20 kt.
waves 1 to 2 ft.  

$$

fzus63 kmkx 011614
glflm 
expires:202607020300;;229080

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
1114 am cdt wed jul 1 2026

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

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

.synopsis...

high pressure around 30.1 inches will remain to the southeast of 
the great lakes, while low pressure around 29.5 inches moves 
slowly east across central manitoba into james bay. breezy south 
to southwest winds will persist through thursday, with lighter 
winds thursday night into friday. 

chances for thunderstorms are forecast across the northern half 
of the lake the remainder of this morning through tonight. there 
are chances for thunderstorms across the southern two thirds of 
the lake thursday into friday evening, and across the southern 
half of the lake later friday night into sunday. strong to severe
storms may occur at times, though confidence remains low in 
timing of stronger storms.

patchy marine fog will be possible at times, primarily over the 
northern half of the lake as the warm and moist airmass moves 
over the lake.


lmz669-020300-
lake michigan from sheboygan to port washington wi 5 nm offshore
to mid lake-
1114 am cdt wed jul 1 2026

sheboygan wi to pentwater mi south to port washington wi to
whitehall mi...

...severe thunderstorm watch 429 in effect until 4 pm cdt this
afternoon...

.tonight...south winds 15 to 25 kt becoming southwest 10 to
20 kt. chance of showers and thunderstorms overnight. waves 3 to
5 ft. 
.thursday...southwest winds 10 to 20 kt. chance of showers in the
afternoon. waves 3 to 5 ft subsiding to 1 to 3 ft. 
.thursday night...southwest winds 10 to 20 kt diminishing to 5 to
10 kt overnight. chance of showers and thunderstorms. waves 1 to
3 ft. 
.friday...southwest winds 10 to 15 kt becoming south 10 to 20 kt.
chance of showers. waves 1 to 2 ft. 
.friday night...southwest winds 10 to 15 kt becoming west.
showers likely with a chance of thunderstorms. waves 1 to 2 ft.
.saturday...northwest winds 10 to 15 kt becoming north 10 to
20 kt. chance of showers. waves 1 to 2 ft. 
.sunday...north winds 10 to 15 kt increasing to 10 to 20 kt.
waves 1 to 2 ft.  

$$

fzus63 kmkx 011614
glflm 
expires:202607020300;;229076

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
1114 am cdt wed jul 1 2026

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

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

.synopsis...

high pressure around 30.1 inches will remain to the southeast of 
the great lakes, while low pressure around 29.5 inches moves 
slowly east across central manitoba into james bay. breezy south 
to southwest winds will persist through thursday, with lighter 
winds thursday night into friday. 

chances for thunderstorms are forecast across the northern half 
of the lake the remainder of this morning through tonight. there 
are chances for thunderstorms across the southern two thirds of 
the lake thursday into friday evening, and across the southern 
half of the lake later friday night into sunday. strong to severe
storms may occur at times, though confidence remains low in 
timing of stronger storms.

patchy marine fog will be possible at times, primarily over the 
northern half of the lake as the warm and moist airmass moves 
over the lake.


lmz362-364-366-868-020300-
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 pentwater to manistee mi 5 nm offshore to mid
lake-
1114 am cdt wed jul 1 2026

wilmette harbor il to st. joseph mi south to rock island passage
to charlevoix mi...

...severe thunderstorm watch 428 in effect until 3 pm cdt this
afternoon...

.tonight...south winds 15 to 25 kt becoming southwest. chance of
showers and thunderstorms. waves 3 to 5 ft. 
.thursday...southwest winds 15 to 25 kt. patchy fog in the
morning, then patchy dense fog in the afternoon. chance of
showers in the afternoon. waves 3 to 5 ft. 
.thursday night...southwest winds 10 to 20 kt diminishing to
10 to 15 kt. chance of showers. waves 1 to 3 ft. 
.friday...southwest winds 10 to 15 kt increasing to 10 to 20 kt.
chance of showers. waves 1 to 2 ft. 
.friday night...west winds 10 to 15 kt veering to north 5 to
10 kt. showers likely with a chance of thunderstorms. waves 1 to
2 ft. 
.saturday...northeast winds 10 to 15 kt becoming north 10 to
20 kt. waves 1 to 2 ft. 
.sunday...northeast winds 10 to 15 kt increasing to 10 to 20 kt.
waves 1 to 2 ft.  

$$

fzus63 kmkx 011614
glflm 
expires:202607020300;;229079

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
1114 am cdt wed jul 1 2026

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

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

.synopsis...

high pressure around 30.1 inches will remain to the southeast of 
the great lakes, while low pressure around 29.5 inches moves 
slowly east across central manitoba into james bay. breezy south 
to southwest winds will persist through thursday, with lighter 
winds thursday night into friday. 

chances for thunderstorms are forecast across the northern half 
of the lake the remainder of this morning through tonight. there 
are chances for thunderstorms across the southern two thirds of 
the lake thursday into friday evening, and across the southern 
half of the lake later friday night into sunday. strong to severe
storms may occur at times, though confidence remains low in 
timing of stronger storms.

patchy marine fog will be possible at times, primarily over the 
northern half of the lake as the warm and moist airmass moves 
over the lake.


lmz080-671-673-675-777-779-870-872-874-876-878-020300-
lake michigan from michigan city in to st. joseph mi 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-
1114 am cdt wed jul 1 2026

port washington wi to whitehall mi south...

.tonight...south winds 15 to 25 kt becoming southwest 10 to
20 kt. chance of showers and thunderstorms overnight. waves 3 to
5 ft. 
.thursday...southwest winds 10 to 20 kt. chance of showers in the
afternoon. waves 3 to 5 ft subsiding to 1 to 3 ft. 
.thursday night...southwest winds 10 to 20 kt diminishing to 5 to
10 kt overnight. chance of showers and thunderstorms. waves 1 to
3 ft. 
.friday...southwest winds 10 to 15 kt becoming south 10 to 20 kt.
chance of showers. waves 1 to 2 ft. 
.friday night...southwest winds 10 to 15 kt becoming west.
showers likely with a chance of thunderstorms. waves 1 to 2 ft.
.saturday...northwest winds 10 to 15 kt becoming north 10 to
20 kt. chance of showers. waves 1 to 2 ft. 
.sunday...north winds 10 to 15 kt increasing to 10 to 20 kt.
waves 1 to 2 ft.  

$$

fzus63 kmqt 012001
glfls 
expires:202607020800;;240382

open lake forecast for lake superior
national weather service marquette mi
401 pm edt wed jul 1 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 broad 29.6 inch low over ontario and quebec will push toward the 
hudson bay and quebec tonight into thursday dragging a 29.7 inch 
trough over lake superior. thereafter a 30.0 inch high will build 
over ontario, extending south into the upper great lakes through the 
weekend and into next week.




lsz162-020800-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
401 pm edt wed jul 1 2026 /301 pm cdt wed jul 1 2026/

.late this afternoon...southwest winds 10 to 20 knots. a slight
chance of showers and thunderstorms. waves calm to 2 feet. 
.tonight...southwest winds 5 to 15 knots. patchy fog after
midnight. waves calm to 2 feet. 
.thursday...southwest winds 10 to 20 knots. waves building to
2 to 4 feet, then subsiding to 1 to 3 feet. 
.thursday night...west winds 5 to 15 knots veering north after
midnight, then veering northeast late. a slight chance of showers
and thunderstorms after midnight. waves subsiding to calm to
2 feet. 
.friday...northeast winds 5 to 15 knots. a slight chance of
thunderstorms through early afternoon. a chance of showers. waves
calm to 2 feet. 
.friday night...northeast winds 5 to 15 knots. waves calm to
2 feet. 
.saturday...northeast winds 10 to 20 knots. a chance of showers.
waves calm to 2 feet. 
.saturday night...northeast winds 5 to 15 knots. waves calm to
2 feet. 
.sunday...northeast winds 5 to 15 knots diminishing to less than
10 knots. waves calm to 2 feet. 
.monday...north winds 5 to 15 knots backing west. waves calm to
2 feet. 

$$

fzus63 kmqt 012001
glfls 
expires:202607020800;;240383

open lake forecast for lake superior
national weather service marquette mi
401 pm edt wed jul 1 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 broad 29.6 inch low over ontario and quebec will push toward the 
hudson bay and quebec tonight into thursday dragging a 29.7 inch 
trough over lake superior. thereafter a 30.0 inch high will build 
over ontario, extending south into the upper great lakes through the 
weekend and into next week.




lsz263-020800-
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-
401 pm edt wed jul 1 2026

.late this afternoon...southwest winds 10 to 20 knots. a chance
of showers and a slight chance of thunderstorms. waves 1 to
3 feet. 
.tonight...southwest winds 5 to 15 knots. a slight chance of
showers and thunderstorms through midnight. patchy fog after
midnight. waves subsiding to calm to 2 feet. 
.thursday...southwest winds 10 to 20 knots increasing to 15 to
25 knots in the afternoon. waves building to 2 to 4 feet. 
.thursday night...southwest winds 10 to 20 knots becoming west
5 to 15 knots after midnight, then becoming northeast less than
10 knots late. waves subsiding to calm to 2 feet. 
.friday...northeast winds 5 to 15 knots. a chance of showers.
waves calm to 2 feet. 
.friday night...northeast winds 5 to 15 knots. waves calm to
2 feet. 
.saturday...northeast winds 5 to 15 knots increasing to 10 to
20 knots by mid afternoon. a chance of showers. waves calm to
2 feet. 
.saturday night...northeast winds 5 to 15 knots veering east
after midnight. a chance of showers. waves calm to 2 feet. 
.sunday...northeast winds 5 to 15 knots veering east. waves calm
to 2 feet. 
.monday...southwest winds 5 to 15 knots. waves calm to 2 feet. 

$$

fzus63 kmqt 012001
glfls 
expires:202607020800;;240384

open lake forecast for lake superior
national weather service marquette mi
401 pm edt wed jul 1 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 broad 29.6 inch low over ontario and quebec will push toward the 
hudson bay and quebec tonight into thursday dragging a 29.7 inch 
trough over lake superior. thereafter a 30.0 inch high will build 
over ontario, extending south into the upper great lakes through the 
weekend and into next week.




lsz264-020800-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
401 pm edt wed jul 1 2026

.late this afternoon...south winds 5 to 15 knots. a slight chance
of showers and thunderstorms. waves 1 to 3 feet. 
.tonight...southwest winds 5 to 15 knots. a slight chance of
showers and thunderstorms through midnight. patchy fog after
midnight. waves subsiding to calm to 2 feet, then building to
1 to 3 feet. 
.thursday...southwest winds 10 to 20 knots. patchy fog through
early afternoon. waves building to 2 to 4 feet. 
.thursday night...west winds 10 to 20 knots diminishing to 5 to
15 knots after midnight, then becoming northwest less than
10 knots late. waves subsiding to calm to 2 feet. 
.friday...northeast winds less than 10 knots becoming east 5 to
15 knots by mid afternoon. a slight chance of showers by mid
afternoon. waves calm to 2 feet. 
.friday night...north winds 5 to 15 knots veering northeast after
midnight. waves calm to 2 feet. 
.saturday...east winds 5 to 15 knots. waves calm to 2 feet. 
.saturday night...northeast winds 5 to 15 knots becoming east
less than 10 knots after midnight. waves calm to 2 feet. 
.sunday...east winds 5 to 15 knots becoming south less than
10 knots. waves calm to 2 feet. 
.monday...south winds 5 to 15 knots. waves calm to 2 feet. 

$$

fzus63 kmqt 012001
glfls 
expires:202607020800;;240385

open lake forecast for lake superior
national weather service marquette mi
401 pm edt wed jul 1 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 broad 29.6 inch low over ontario and quebec will push toward the 
hudson bay and quebec tonight into thursday dragging a 29.7 inch 
trough over lake superior. thereafter a 30.0 inch high will build 
over ontario, extending south into the upper great lakes through the 
weekend and into next week.




lsz265-020800-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
401 pm edt wed jul 1 2026

.late this afternoon...south winds 10 to 20 knots. a chance of
showers and a slight chance of thunderstorms. waves calm to
2 feet. 
.tonight...south winds 10 to 20 knots becoming southwest 15 to
25 knots after midnight, then diminishing to 10 to 20 knots late.
a chance of showers and thunderstorms through midnight. patchy
fog after midnight. waves calm to 2 feet. 
.thursday...west winds 10 to 20 knots. patchy fog through early
afternoon. waves calm to 2 feet. 
.thursday night...west winds 10 to 20 knots becoming northwest
5 to 15 knots late. waves calm to 2 feet. 
.friday...northeast winds 5 to 15 knots veering east by mid
afternoon. a chance of showers and a slight chance of
thunderstorms by mid afternoon. waves calm to 2 feet. 
.friday night...north winds 5 to 15 knots veering northeast after
midnight. a chance of showers. waves calm to 2 feet. 
.saturday...east winds 5 to 15 knots increasing to 10 to 20 knots
by mid afternoon. a chance of showers by mid afternoon. waves
calm to 2 feet. 
.saturday night...northeast winds 5 to 15 knots. a chance of
showers. waves calm to 2 feet. 
.sunday...east winds 5 to 15 knots veering southeast. waves calm
to 2 feet. 
.monday...east winds 5 to 15 knots veering southwest. waves calm
to 2 feet. 

$$

fzus63 kmqt 012001
glfls 
expires:202607020800;;240386

open lake forecast for lake superior
national weather service marquette mi
401 pm edt wed jul 1 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 broad 29.6 inch low over ontario and quebec will push toward the 
hudson bay and quebec tonight into thursday dragging a 29.7 inch 
trough over lake superior. thereafter a 30.0 inch high will build 
over ontario, extending south into the upper great lakes through the 
weekend and into next week.




lsz266-020800-
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-
401 pm edt wed jul 1 2026

.late this afternoon...southeast winds 10 to 20 knots. a chance
of showers and a slight chance of thunderstorms. waves calm to
2 feet. 
.tonight...south winds 10 to 20 knots veering southwest after
midnight. a chance of thunderstorms through midnight. a chance of
showers. patchy fog after midnight. waves building to 1 to
3 feet. 
.thursday...southwest winds 5 to 15 knots becoming west 10 to
20 knots in the afternoon, then backing southwest late. patchy
fog through early afternoon. waves building to 2 to 4 feet. 
.thursday night...southwest winds 10 to 20 knots becoming west
5 to 15 knots after midnight, then veering northwest late. waves
subsiding to calm to 2 feet. 
.friday...north winds 5 to 15 knots. a slight chance of showers
and thunderstorms by mid afternoon. waves calm to 2 feet. 
.friday night...north winds 5 to 15 knots veering northeast after
midnight. a chance of showers. waves calm to 2 feet. 
.saturday...east winds 5 to 15 knots backing northeast by mid
afternoon. waves calm to 2 feet. 
.saturday night...northeast winds 5 to 15 knots. a chance of
showers. waves calm to 2 feet. 
.sunday...northeast winds 5 to 15 knots backing north. waves calm
to 2 feet. 
.monday...south winds 5 to 15 knots. waves calm to 2 feet. 

$$

fzus63 kmqt 012001
glfls 
expires:202607020800;;240387

open lake forecast for lake superior
national weather service marquette mi
401 pm edt wed jul 1 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 broad 29.6 inch low over ontario and quebec will push toward the 
hudson bay and quebec tonight into thursday dragging a 29.7 inch 
trough over lake superior. thereafter a 30.0 inch high will build 
over ontario, extending south into the upper great lakes through the 
weekend and into next week.




lsz267-020800-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
401 pm edt wed jul 1 2026

.late this afternoon...southeast winds 5 to 15 knots. a slight
chance of showers. waves calm to 2 feet. 
.tonight...south winds 10 to 20 knots becoming southwest 15 to
25 knots after midnight, then diminishing to 10 to 20 knots late.
patchy fog. a chance of showers and thunderstorms. waves building
to 1 to 3 feet, then subsiding to calm to 2 feet. 
.thursday...southwest winds 5 to 15 knots. patchy fog through
early afternoon. waves calm to 2 feet. 
.thursday night...southwest winds 5 to 15 knots diminishing to
less than 10 knots after midnight, then becoming northwest 5 to
15 knots late. waves calm to 2 feet. 
.friday...north winds 5 to 15 knots backing northwest by mid
afternoon. a slight chance of showers and thunderstorms by mid
afternoon. waves calm to 2 feet. 
.friday night...northwest winds 5 to 15 knots veering north after
midnight. a chance of showers. waves calm to 2 feet. 
.saturday...northeast winds 5 to 15 knots backing north by mid
afternoon. waves calm to 2 feet. 
.saturday night...northeast winds 5 to 15 knots veering east
after midnight. a chance of showers. waves calm to 2 feet. 
.sunday...north winds 10 to 20 knots diminishing to 5 to
15 knots. waves calm to 2 feet. 
.monday...northwest winds 5 to 15 knots backing south. waves calm
to 2 feet. 

$$