fzus61 kbuf 300802
glflo 
expires:202606301500;;154371

open lake forecast for lake ontario
national weather service buffalo ny
402 am edt tue jun 30 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 warm front will cross the lake today, then a 30.1 inch 
high will build into the ohio valley and mid atlantic by wednesday, 
where it will remain through at least thursday. a weak 29.9 inch 
trough will then approach and cross the lake friday into saturday.


loz062-301500-
lake ontario open waters from the niagara river to hamlin beach-
402 am edt tue jun 30 2026

.today...southwest winds less than 10 knots increasing to 10 to
15 knots. a chance of showers and thunderstorms through early
afternoon. waves 2 feet or less. 
.tonight...southwest winds 10 to 15 knots. waves 1 to 3 feet. 
.wednesday...southwest winds 10 to 15 knots increasing to 15 to
20 knots. a chance of showers and thunderstorms in the afternoon.
waves 1 to 3 feet. 
.wednesday night...southwest winds 15 to 20 knots diminishing to
10 to 15 knots. a chance of showers and thunderstorms in the
evening. waves 1 to 3 feet. 
.thursday...southwest winds 10 to 15 knots becoming west. waves
1 to 3 feet. 
.friday...west winds 5 to 10 knots. a chance of showers and
thunderstorms. waves 1 to 2 feet. 
.saturday...west winds 5 to 10 knots becoming north. a chance of
showers and thunderstorms. waves 1 foot or less. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kbuf 300802
glflo 
expires:202606301500;;154372

open lake forecast for lake ontario
national weather service buffalo ny
402 am edt tue jun 30 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 warm front will cross the lake today, then a 30.1 inch 
high will build into the ohio valley and mid atlantic by wednesday, 
where it will remain through at least thursday. a weak 29.9 inch 
trough will then approach and cross the lake friday into saturday.


loz063>065-301500-
lake ontario open waters from hamlin beach to the saint lawrence
river-
402 am edt tue jun 30 2026

.today...south winds 5 to 10 knots. a chance of showers and
thunderstorms. waves 2 feet or less. 
.tonight...southwest winds 5 to 15 knots. a chance of showers and
thunderstorms late in the evening. waves 2 feet or less. 
.wednesday...southwest winds 10 to 15 knots. waves 1 to 2 feet. 
.wednesday night...southwest winds 5 to 15 knots. waves 1 to
3 feet. 
.thursday...southwest winds 10 to 15 knots becoming west. waves
1 to 3 feet. 
.friday...west winds 5 to 15 knots. a chance of showers and
thunderstorms friday night. waves 1 to 2 feet. 
.saturday...west winds 5 to 10 knots becoming northwest. a chance
of showers and thunderstorms. waves 1 foot or less. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 301338
glfle 
expires:202606302015;;167059

open lake forecast for lake erie
national weather service cleveland oh
938 am edt tue jun 30 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 build from the south today and
remain through friday. a weak trough averaging 29.90 inches will 
enter on friday night into saturday.


lez162>164-302015-
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-
938 am edt tue jun 30 2026

.this afternoon...southwest winds 10 to 15 knots. waves 2 feet or
less. 
.tonight...southwest winds 10 to 15 knots. waves 1 to 2 feet. 
.wednesday...southwest winds 5 to 10 knots. waves 2 feet or less.
.wednesday night...southwest winds around 10 knots. waves around
1 foot. 
.thursday...southwest winds 5 to 15 knots. waves 1 to 2 feet. 
.friday...southwest winds 5 to 10 knots. a chance of showers and
thunderstorms. waves 1 foot or less. 
.saturday...west winds 5 to 10 knots becoming northeast. a chance
of showers and thunderstorms. waves 1 foot or less. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 301338
glfle 
expires:202606302015;;167060

open lake forecast for lake erie
national weather service cleveland oh
938 am edt tue jun 30 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 build from the south today and
remain through friday. a weak trough averaging 29.90 inches will 
enter on friday night into saturday.


lez061-165>169-302015-
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-
938 am edt tue jun 30 2026

.this afternoon...southwest winds 5 to 10 knots. waves 1 to
2 feet. 
.tonight...southwest winds 5 to 15 knots. waves 1 to 3 feet. 
.wednesday...southwest winds 10 to 15 knots. waves 1 to 3 feet. 
.wednesday night...southwest winds 5 to 10 knots. waves 1 to
3 feet. 
.thursday...southwest winds 5 to 15 knots. waves 1 to 2 feet. 
.friday...southwest winds 5 to 10 knots. showers likely with a
chance of thunderstorms friday night. waves 2 feet or less. 
.saturday...west winds 5 to 10 knots becoming north. a chance of
showers during the day, then a chance of showers and
thunderstorms saturday night. waves 1 foot or less. 

winds and waves higher in and near thunderstorms.

$$

fzus63 kdtx 301343
glfsc 
expires:202606302145;;167175

lake st clair forecast
national weather service detroit/pontiac mi
943 am edt tue jun 30 2026

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

.synopsis...a warm front lifts across the region through tuesday.
a hot and humid air mass then takes residence through the week
with modest south to southwest winds. the central great lakes
will largely remain dry and stable through thursday. however, the
prevailing storm track directed over the northern great lakes may
bring occasional rounds of storms to northern lake huron.


lcz460-302145-
lake st clair-
943 am edt tue jun 30 2026

.rest of today...southwest winds 10 to 15 knots. mostly sunny. waves
2 feet or less.
.tonight...southwest winds 10 to 15 knots. clear. waves 2 feet or
less.
.wednesday...southwest winds 10 to 15 knots. sunny. waves 2 feet or
less.
.wednesday night...southwest winds 10 to 15 knots. clear. waves 2
feet or less.
.thursday...southwest winds 10 to 15 knots. sunny becoming mostly
clear. waves 2 feet or less.
.friday...west winds 5 to 10 knots. partly cloudy. showers likely
and a chance of thunderstorms. waves 2 feet or less.
.saturday...north winds 10 to 15 knots. partly cloudy. a chance of
showers and thunderstorms. waves 2 feet or less.

$$

fzus63 kdtx 301340
glflh 
expires:202606302145;;167146

open lake forecast for lake huron
national weather service detroit/pontiac mi
940 am edt tue jun 30 2026

for waters beyond five nautical miles off shore on lake huron

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

.synopsis...a warm front lifts across the region through tuesday.
a hot and humid air mass then takes residence through the week
with modest south to southwest winds. the central great lakes
will largely remain dry and stable through thursday. however, the
prevailing storm track directed over the northern great lakes may
bring occasional rounds of storms to northern lake huron.


lhz462>464-302145-
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-
940 am edt tue jun 30 2026

.rest of today...south winds 10 to 15 knots. waves 1 to 3 feet. 
.tonight...southwest winds 10 to 15 knots. waves 2 to 4 feet. 
.wednesday...southwest winds 10 to 15 knots decreasing to 5 to
10 knots in the late morning and afternoon. waves 1 to 3 feet. 
.wednesday night...south winds 5 to 10 knots becoming southwest
10 to 15 knots in the late evening and overnight. waves 1 to
3 feet. 
.thursday...southwest winds 10 to 15 knots becoming west 5 to
10 knots late in the evening. a chance of showers late in the
evening. waves 1 to 3 feet building to 2 to 4 feet late in the
morning...then subsiding to 1 to 3 feet late in the evening. 
.friday...southwest winds 5 to 10 knots backing to the southeast
early in the evening...then veering to the south by midnight. a
chance of showers early in the morning. a chance of
thunderstorms. rain showers likely . waves 2 feet or less. 
.saturday...west winds 5 to 10 knots veering to the north. a
chance of showers early in the morning. waves 2 feet or less. 


$$

fzus63 kdtx 301340
glflh 
expires:202606302145;;167144

open lake forecast for lake huron
national weather service detroit/pontiac mi
940 am edt tue jun 30 2026

for waters beyond five nautical miles off shore on lake huron

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

.synopsis...a warm front lifts across the region through tuesday.
a hot and humid air mass then takes residence through the week
with modest south to southwest winds. the central great lakes
will largely remain dry and stable through thursday. however, the
prevailing storm track directed over the northern great lakes may
bring occasional rounds of storms to northern lake huron.


lhz361-302145-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
940 am edt tue jun 30 2026

.rest of today...south winds 5 to 10 knots. areas of fog. waves
1 to 3 feet. 
.tonight...west winds 5 to 10 knots veering to the northeast late
in the evening...then veering to the southeast after midnight
becoming south 10 to 15 knots early in the morning. a chance of
thunderstorms in the evening. areas of fog. waves 1 to 3 feet. 
.wednesday...west winds 5 to 10 knots. waves 1 to 3 feet. 
.wednesday night...east winds 5 to 10 knots veering to the south
by midnight...then becoming southwest 10 to 15 knots after
midnight. showers likely and a chance of thunderstorms. waves
1 to 3 feet building to 2 to 4 feet after midnight. 
.thursday...west winds 10 to 15 knots decreasing to 5 to 10 knots
late in the evening. a chance of showers. waves 2 to 4 feet
subsiding to 1 to 3 feet late in the afternoon. 
.friday...west winds 5 to 10 knots. a chance of showers and
thunderstorms early in the evening. a chance of showers by
midnight. waves 2 feet or less. 
.saturday...north winds 5 to 10 knots. waves 2 feet or less. 


$$

fzus63 kdtx 301340
glflh 
expires:202606302145;;167145

open lake forecast for lake huron
national weather service detroit/pontiac mi
940 am edt tue jun 30 2026

for waters beyond five nautical miles off shore on lake huron

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

.synopsis...a warm front lifts across the region through tuesday.
a hot and humid air mass then takes residence through the week
with modest south to southwest winds. the central great lakes
will largely remain dry and stable through thursday. however, the
prevailing storm track directed over the northern great lakes may
bring occasional rounds of storms to northern lake huron.


lhz362-363-302145-
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-
940 am edt tue jun 30 2026

.rest of today...south winds 10 to 15 knots. areas of fog. waves
2 to 4 feet. 
.tonight...southwest winds 10 to 15 knots. areas of fog. waves
2 to 4 feet. 
.wednesday...southwest winds 10 to 15 knots becoming south 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 early
afternoon...then building to 2 to 4 feet early in the afternoon. 
.wednesday night...south winds 5 to 10 knots becoming southwest
10 to 15 knots after midnight. a chance of showers after
midnight. waves 2 to 4 feet. 
.thursday...southwest winds 10 to 15 knots becoming south 5 to
10 knots late in the afternoon...then becoming light and variable
late in the evening. a chance of showers. waves 2 to 4 feet
subsiding to 1 to 3 feet late in the evening. 
.friday...light and variable winds becoming south 5 to 10 knots .
a chance of showers and thunderstorms...then a chance of showers
by midnight. waves 2 feet or less. 
.saturday...northwest winds 5 to 10 knots. a chance of showers
early in the morning. waves 2 feet or less. 


$$

fzus63 kmkx 301354
glflm 
expires:202606302100;;167438

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
853 am cdt tue jun 30 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...

no major changes to the going forecast this morning. some patchy
marine fog can't be ruled out in widely scattered spots as a more
moist air mass moves over the lake today.

modest to breezy southerly winds will prevail into thursday then
lighter into friday as high pressure around 30.1 inches remains 
to the southeast of the great lakes, while troughs of low pressure
around 29.2 inches continue over canada into the northern great 
plains. scattered thunderstorms are forecast across the northern 
half tonight through wednesday night, and across the southern two 
thirds thursday into friday, and across the whole lake friday into
saturday as a cold front shifts winds to northerly.


lmz080-669-671-673-675-777-779-870-872-874-876-878-302100-
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-
854 am cdt tue jun 30 2026

sheboygan wi to pentwater mi south...

.rest of today...south winds 10 to 20 kt increasing to 15 to
25 kt. waves 4 to 6 ft occasionally to 8 ft. 
.tonight...south winds 15 to 25 kt becoming southwest 10 to
20 kt. waves 4 to 6 ft occasionally to 8 ft subsiding to 3 to
5 ft. 
.wednesday...southwest winds 10 to 20 kt becoming south 15 to
25 kt. waves 2 to 4 ft building to 3 to 5 ft. 
.wednesday night...southwest winds 15 to 25 kt. chance of showers
overnight. waves 4 to 6 ft occasionally to 8 ft. 
.thursday...southwest winds 10 to 20 kt. waves 3 to 5 ft. 
.thursday night...southwest winds 10 to 15 kt. chance of showers
and thunderstorms. waves 2 to 4 ft. 
.friday...southwest winds 10 to 15 kt becoming south 10 to 20 kt.
chance of showers. waves 1 to 2 ft. 
.saturday...northwest winds 10 to 15 kt becoming north 10 to
20 kt. waves 1 to 3 ft.  

$$

fzus63 kmkx 301354
glflm 
expires:202606302100;;167437

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
853 am cdt tue jun 30 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...

no major changes to the going forecast this morning. some patchy
marine fog can't be ruled out in widely scattered spots as a more
moist air mass moves over the lake today.

modest to breezy southerly winds will prevail into thursday then
lighter into friday as high pressure around 30.1 inches remains 
to the southeast of the great lakes, while troughs of low pressure
around 29.2 inches continue over canada into the northern great 
plains. scattered thunderstorms are forecast across the northern 
half tonight through wednesday night, and across the southern two 
thirds thursday into friday, and across the whole lake friday into
saturday as a cold front shifts winds to northerly.


lmz261-362-364-366-563-565-567-868-302100-
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-
854 am cdt tue jun 30 2026

sheboygan wi to pentwater mi north...

.rest of today...south winds 15 to 25 kt increasing to 30 kt.
patchy fog through mid morning. isolated showers through mid
morning. waves 4 to 6 ft occasionally to 8 ft. 
.tonight...southwest winds to 30 kt diminishing to 10 to 20 kt.
chance of showers and thunderstorms in the evening, then slight
chance of showers and thunderstorms overnight. waves 4 to 6 ft
occasionally to 8 ft subsiding to 3 to 5 ft. 
.wednesday...southwest winds 10 to 20 kt becoming south 15 to
25 kt. patchy fog in the morning. chance of showers in the
afternoon. waves 2 to 4 ft building to 3 to 5 ft. 
.wednesday night...southwest winds 15 to 25 kt. chance of showers
and thunderstorms in the evening, then showers with a chance of
thunderstorms overnight. waves 4 to 6 ft occasionally to 8 ft. 
.thursday...southwest winds 15 to 25 kt. waves 3 to 5 ft. 
.thursday night...southwest winds 10 to 20 kt diminishing to 5 to
10 kt. chance of thunderstorms. waves 2 to 4 ft. 
.friday...south winds 10 to 15 kt becoming southwest 10 to 20 kt.
chance of showers. waves 1 to 2 ft. 
.saturday...northeast winds 10 to 15 kt increasing to 10 to
20 kt. waves 1 to 3 ft.  

$$

fzus63 kmkx 300808
glflm 
expires:202606301530;;154996

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
308 am cdt tue jun 30 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...

modest to breezy southerly winds will prevail into thursday then
lighter into friday as high pressure around 30.1 inches remains 
to the southeast of the great lakes, while troughs of low pressure
around 29.2 inches continue over canada into the northern great 
plains. areas of dense fog may develop during the day due to a 
very humid airmass flowing over the cooler waters of the lake. 
scattered thunderstorms are forecast across the northern half
tonight through wednesday night, and across the southern two
thirds thursday into friday, and across the whole lake friday into
saturday as a cold front shifts winds to northerly.


lmz261-362-364-366-563-565-567-669-868-870-301530-
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 sheboygan to port washington wi 5 nm offshore
to mid lake-
lake michigan from pentwater to manistee mi 5 nm offshore to mid
lake-
lake michigan from whitehall to pentwater mi 5 nm offshore to mid
lake-
308 am cdt tue jun 30 2026

port washington wi to whitehall mi north...

.today...south winds 15 to 25 kt increasing to 30 kt. slight
chance of showers and thunderstorms this morning. waves 4 to 6 ft
occasionally to 8 ft. 
.tonight...south winds to 30 kt becoming southwest 15 to 25 kt.
chance of showers and slight chance of thunderstorms. waves 4 to
6 ft occasionally to 8 ft subsiding to 3 to 5 ft. 
.wednesday...southwest winds 10 to 20 kt becoming south 15 to
25 kt. chance of thunderstorms in the afternoon. waves 3 to 5 ft.
.wednesday night...south winds 15 to 25 kt becoming southwest.
chance of showers and thunderstorms in the evening, then showers
overnight. waves 3 to 5 ft. 
.thursday...southwest winds 15 to 25 kt. waves 3 to 5 ft. 
.thursday night...southwest winds 10 to 20 kt diminishing to
10 to 15 kt. chance of showers and thunderstorms. waves 2 to
4 ft. 
.friday...south winds 10 to 15 kt increasing to 10 to 20 kt.
chance of showers. waves 1 to 2 ft. 
.saturday...northeast winds 10 to 15 kt increasing to 10 to
20 kt. waves 1 to 3 ft.  

$$

fzus63 kmkx 300808
glflm 
expires:202606301530;;154997

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
308 am cdt tue jun 30 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...

modest to breezy southerly winds will prevail into thursday then
lighter into friday as high pressure around 30.1 inches remains 
to the southeast of the great lakes, while troughs of low pressure
around 29.2 inches continue over canada into the northern great 
plains. areas of dense fog may develop during the day due to a 
very humid airmass flowing over the cooler waters of the lake. 
scattered thunderstorms are forecast across the northern half
tonight through wednesday night, and across the southern two
thirds thursday into friday, and across the whole lake friday into
saturday as a cold front shifts winds to northerly.


lmz080-671-673-675-777-779-872-874-876-878-301530-
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 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-
308 am cdt tue jun 30 2026

port washington wi to whitehall mi south...

.today...south winds 10 to 20 kt increasing to 15 to 25 kt. waves
3 to 5 ft. 
.tonight...southwest winds 10 to 20 kt. waves 3 to 5 ft. 
.wednesday...southwest winds 10 to 20 kt becoming south. waves
3 to 5 ft. 
.wednesday night...southwest winds 10 to 20 kt increasing to
15 to 25 kt. waves 3 to 5 ft. 
.thursday...southwest winds 10 to 20 kt. waves 3 to 5 ft. 
.thursday night...southwest winds 10 to 15 kt. chance of showers
and thunderstorms. waves 1 to 3 ft. 
.friday...southwest winds 10 to 15 kt becoming south. chance of
showers. waves 1 to 2 ft. 
.saturday...northwest winds 10 to 15 kt becoming north 10 to
20 kt. waves 1 to 3 ft.  

$$

fzus63 kmqt 301401
glfls 
expires:202606302000;;167575

open lake forecast for lake superior
national weather service marquette mi
1001 am edt tue jun 30 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 29.4 inch low will rotate around lake winnipeg, deepening to 29.1 
inches this morning.  this low wobbles around southern manitoba 
today, weakening to 29.5 inches as it crosses northern ontario 
tomorrow. thursday morning, the low will further weaken to 29.6 
inches over northern quebec while 30.0 inch high pressure builds 
over the us southeast and northern manitoba and broad 29.8 inch low 
pressure spreads over the high plains. friday into the weekend, the 
high over canada moves into hudson bay, building to 30.1 inches. 




lsz162-302000-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
1001 am edt tue jun 30 2026 /901 am cdt tue jun 30 2026/

...dense fog advisory in effect until 8 pm edt /7 pm cdt/ this
evening...

.rest of today...southwest winds 5 to 15 knots increasing to
10 to 20 knots late. patchy fog by late morning. waves calm to
2 feet. 
.tonight...southwest winds 15 to 25 knots diminishing to 10 to
20 knots after midnight. waves calm to 2 feet. 
.wednesday...southwest winds 10 to 20 knots. a chance of showers
and a slight chance of thunderstorms by mid afternoon. waves
building to 1 to 3 feet, then subsiding to calm to 2 feet. 
.wednesday night...southwest winds 5 to 15 knots. a chance of
showers and thunderstorms through midnight. waves calm to 2 feet.
.thursday...southwest winds 10 to 20 knots. waves building to
1 to 3 feet, then subsiding to calm to 2 feet. 
.thursday night...north winds 5 to 15 knots veering northeast
after midnight. waves calm to 2 feet. 
.friday...northeast winds 5 to 15 knots. a chance of showers.
waves calm to 2 feet. 
.saturday...northeast winds 10 to 20 knots diminishing to 5 to
15 knots. a chance of showers. waves calm to 2 feet. 

$$

fzus63 kmqt 301401
glfls 
expires:202606302000;;167576

open lake forecast for lake superior
national weather service marquette mi
1001 am edt tue jun 30 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 29.4 inch low will rotate around lake winnipeg, deepening to 29.1 
inches this morning.  this low wobbles around southern manitoba 
today, weakening to 29.5 inches as it crosses northern ontario 
tomorrow. thursday morning, the low will further weaken to 29.6 
inches over northern quebec while 30.0 inch high pressure builds 
over the us southeast and northern manitoba and broad 29.8 inch low 
pressure spreads over the high plains. friday into the weekend, the 
high over canada moves into hudson bay, building to 30.1 inches. 




lsz263-302000-
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 jun 30 2026

...dense fog advisory in effect until 8 pm edt this evening...

.rest of today...southwest winds 5 to 15 knots increasing to
10 to 20 knots in the afternoon. patchy dense fog. a slight
chance of showers and thunderstorms by mid afternoon. some
thunderstorms may be severe. waves 1 to 3 feet subsiding to calm
to 2 feet, then building to 1 to 3 feet. 
.tonight...southwest winds 10 to 20 knots diminishing to 5 to
15 knots late. waves building to 2 to 4 feet, then subsiding to
1 to 3 feet. 
.wednesday...southwest winds 10 to 20 knots increasing to 15 to
25 knots in the afternoon. a chance of showers by mid afternoon.
waves building to 2 to 4 feet. 
.wednesday night...southwest winds 10 to 20 knots diminishing to
5 to 15 knots after midnight. a chance of showers and
thunderstorms through midnight. waves subsiding to 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 northeast
after midnight. waves subsiding to calm to 2 feet. 
.friday...northeast winds 5 to 15 knots. a chance of showers.
waves calm to 2 feet. 
.saturday...northeast winds 5 to 15 knots. a chance of showers.
waves calm to 2 feet. 

$$

fzus63 kmqt 301401
glfls 
expires:202606302000;;167577

open lake forecast for lake superior
national weather service marquette mi
1001 am edt tue jun 30 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 29.4 inch low will rotate around lake winnipeg, deepening to 29.1 
inches this morning.  this low wobbles around southern manitoba 
today, weakening to 29.5 inches as it crosses northern ontario 
tomorrow. thursday morning, the low will further weaken to 29.6 
inches over northern quebec while 30.0 inch high pressure builds 
over the us southeast and northern manitoba and broad 29.8 inch low 
pressure spreads over the high plains. friday into the weekend, the 
high over canada moves into hudson bay, building to 30.1 inches. 




lsz264-302000-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
1001 am edt tue jun 30 2026

...dense fog advisory in effect until 8 pm edt this evening...

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

$$

fzus63 kmqt 301401
glfls 
expires:202606302000;;167578

open lake forecast for lake superior
national weather service marquette mi
1001 am edt tue jun 30 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 29.4 inch low will rotate around lake winnipeg, deepening to 29.1 
inches this morning.  this low wobbles around southern manitoba 
today, weakening to 29.5 inches as it crosses northern ontario 
tomorrow. thursday morning, the low will further weaken to 29.6 
inches over northern quebec while 30.0 inch high pressure builds 
over the us southeast and northern manitoba and broad 29.8 inch low 
pressure spreads over the high plains. friday into the weekend, the 
high over canada moves into hudson bay, building to 30.1 inches. 




lsz265-302000-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
1001 am edt tue jun 30 2026

...dense fog advisory in effect until 8 pm edt this evening...

.rest of today...south winds 10 to 20 knots backing southeast
late. patchy fog by late morning. a chance of showers and
thunderstorms by mid afternoon. some thunderstorms may be severe.
waves calm to 2 feet. 
.tonight...south winds 10 to 20 knots veering southwest after
midnight. a slight chance of showers and thunderstorms through
midnight. some thunderstorms may be severe. waves calm to 2 feet.
.wednesday...south winds 10 to 20 knots. a chance of showers and
a slight chance of thunderstorms by mid afternoon. waves calm to
2 feet. 
.wednesday night...south winds 10 to 20 knots veering southwest
after midnight. a chance of showers and thunderstorms. waves calm
to 2 feet. 
.thursday...west winds 10 to 20 knots. waves calm to 2 feet. 
.thursday night...west winds 10 to 20 knots diminishing to 5 to
15 knots after midnight. waves calm to 2 feet. 
.friday...east winds 5 to 15 knots backing north. a chance of
showers. waves calm to 2 feet. 
.saturday...northeast winds 5 to 15 knots backing north. a chance
of showers. waves calm to 2 feet. 

$$

fzus63 kmqt 301401
glfls 
expires:202606302000;;167579

open lake forecast for lake superior
national weather service marquette mi
1001 am edt tue jun 30 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 29.4 inch low will rotate around lake winnipeg, deepening to 29.1 
inches this morning.  this low wobbles around southern manitoba 
today, weakening to 29.5 inches as it crosses northern ontario 
tomorrow. thursday morning, the low will further weaken to 29.6 
inches over northern quebec while 30.0 inch high pressure builds 
over the us southeast and northern manitoba and broad 29.8 inch low 
pressure spreads over the high plains. friday into the weekend, the 
high over canada moves into hudson bay, building to 30.1 inches. 




lsz266-302000-
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 jun 30 2026

...dense fog advisory in effect until 8 pm edt this evening...

.rest of today...south winds 15 to 25 knots diminishing to 10 to
20 knots in the afternoon, then backing southeast late. areas of
dense fog by late morning. a chance of showers and thunderstorms.
some thunderstorms may be severe. waves 2 to 4 feet subsiding to
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. some thunderstorms may be severe. waves building to 1 to
3 feet. 
.wednesday...southwest winds 10 to 20 knots becoming south 5 to
15 knots in the afternoon, then increasing to 10 to 20 knots
late. areas of dense fog through early afternoon. a chance of
showers and a slight chance of thunderstorms by mid afternoon.
waves subsiding to calm to 2 feet. 
.wednesday night...south winds 10 to 20 knots veering southwest
after midnight. showers likely through midnight. a chance of
thunderstorms. a slight chance of showers after midnight. waves
building to 1 to 3 feet, then subsiding to calm to 2 feet. 
.thursday...west winds 5 to 15 knots. waves building to 1 to
3 feet. 
.thursday night...west winds 5 to 15 knots. waves subsiding to
calm to 2 feet. 
.friday...northeast winds 5 to 15 knots backing north. a chance
of showers. waves calm to 2 feet. 
.saturday...north winds 5 to 15 knots. waves calm to 2 feet. 

$$

fzus63 kmqt 301401
glfls 
expires:202606302000;;167580

open lake forecast for lake superior
national weather service marquette mi
1001 am edt tue jun 30 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 29.4 inch low will rotate around lake winnipeg, deepening to 29.1 
inches this morning.  this low wobbles around southern manitoba 
today, weakening to 29.5 inches as it crosses northern ontario 
tomorrow. thursday morning, the low will further weaken to 29.6 
inches over northern quebec while 30.0 inch high pressure builds 
over the us southeast and northern manitoba and broad 29.8 inch low 
pressure spreads over the high plains. friday into the weekend, the 
high over canada moves into hudson bay, building to 30.1 inches. 




lsz267-302000-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
1001 am edt tue jun 30 2026

...dense fog advisory in effect until 8 pm edt this evening...

.rest of today...south winds 10 to 20 knots becoming southeast
5 to 15 knots late. areas of dense fog by late morning. a chance
of showers and thunderstorms. some thunderstorms may be severe.
waves 2 to 4 feet subsiding to calm to 2 feet. 
.tonight...south winds 10 to 20 knots veering southwest after
midnight, then diminishing to 5 to 15 knots late. patchy dense
fog. a chance of thunderstorms through midnight. a chance of
showers. a slight chance of thunderstorms after midnight. some
thunderstorms may be severe through midnight. waves building to
1 to 3 feet, then subsiding to calm to 2 feet. 
.wednesday...southwest winds 5 to 15 knots backing south in the
afternoon. areas of dense fog through early afternoon. a slight
chance of showers by mid afternoon. waves calm to 2 feet. 
.wednesday night...south winds 10 to 20 knots veering southwest
after midnight. showers likely through midnight. a chance of
thunderstorms. a chance of showers after midnight. waves building
to 1 to 3 feet, then subsiding to calm to 2 feet. 
.thursday...west winds 5 to 15 knots. waves calm to 2 feet. 
.thursday night...southwest winds 5 to 15 knots veering north
after midnight. waves calm to 2 feet. 
.friday...north winds 5 to 15 knots. a chance of showers. waves
calm to 2 feet. 
.saturday...northwest winds 5 to 15 knots. waves calm to 2 feet. 

$$