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fzus63 kdtx 020758
glflh 
expires:202507021600;;739955

open lake forecast for lake huron
national weather service detroit/pontiac mi
358 am edt wed jul 2 2025

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 ridge of high pressure extends into the great lakes
from the midwest through early this morning. a weak cold front 
passes through late tonight into thursday, then high pressure 
builds directly across the region thursday night. a warm front 
passes through on saturday with warmer and unsettled conditions 
through the weekend.


lhz361-362-021600-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
lake huron from presque isle light to sturgeon point mi beyond
5nm off shore-
358 am edt wed jul 2 2025

.today...southwest winds 5 to 10 knots. waves 2 feet or less. 
.tonight...west winds 5 to 10 knots. waves 2 feet or less. 
.thursday...northwest winds 5 to 10 knots. waves 2 feet or less. 
.thursday night...north winds 5 to 10 knots until early morning
becoming light and variable. waves 2 feet or less. 
.friday...light and variable winds becoming southeast 5 to
10 knots late in the morning...then becoming south 10 to 15 knots
late in the evening. waves 2 feet or less. 
.saturday...south winds 10 to 15 knots. a chance of showers until
early morning. waves 2 to 4 feet building to 3 to 5 feet. 
.sunday...southwest winds 10 to 15 knots becoming west 5 to
10 knots until early morning. a chance of showers. waves 2 to
4 feet subsiding to 1 to 3 feet in the late evening and early
morning. 


$$
fzus63 kdtx 020758
glflh 
expires:202507021600;;739956

open lake forecast for lake huron
national weather service detroit/pontiac mi
358 am edt wed jul 2 2025

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 ridge of high pressure extends into the great lakes
from the midwest through early this morning. a weak cold front 
passes through late tonight into thursday, then high pressure 
builds directly across the region thursday night. a warm front 
passes through on saturday with warmer and unsettled conditions 
through the weekend.


lhz363-462>464-021600-
lake huron from sturgeon point to alabaster mi beyond 5nm off
shore-
lake huron from port austin to harbor beach beyond 5nm off shore-
lake huron from harbor beach to port sanilac beyond 5nm off shore-
lake huron from port sanilac to port huron beyond 5nm off shore-
358 am edt wed jul 2 2025

.today...southwest winds 5 to 10 knots backing to the south late
in the afternoon. scattered showers in the afternoon. waves
2 feet or less. 
.tonight...south winds 5 to 10 knots early in the evening
becoming light and variable...then becoming southwest 5 to
10 knots after midnight. scattered showers in the evening. waves
2 feet or less. 
.thursday...north winds 5 to 10 knots. waves 2 feet or less. 
.thursday night...light and variable winds. waves 2 feet or less.
.friday...light and variable winds becoming southeast 5 to
10 knots late in the morning...then becoming south 10 to 15 knots
late in the evening. waves 2 feet or less. 
.saturday...south winds 10 to 15 knots. waves 1 to 3 feet
building to 2 to 4 feet. 
.sunday...southwest winds 10 to 15 knots. a chance of showers. a
chance of thunderstorms until early evening. waves 2 to 4 feet
subsiding to 1 to 3 feet in the late evening and early morning. 


$$
fzus63 kmkx 020806
glflm 
expires:202507021530;;740783

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
306 am cdt wed jul 2 2025

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 30.0 inches will linger across the middle 
mississippi river valley today into thursday, before moving to 
the east by friday. light southwest to west winds will continue 
today into tonight. light north to northeast winds thursday into
thursday night will shift south to southwest on friday, as a warm
front moves north through the region. 

south to southwest winds will then increase friday night into 
saturday night, as low pressure around 29.6 inches moves across 
lake superior and ontario and pulls a cold front through the 
region.

there will be mainly small chances for showers and thunderstorms 
at times this afternoon and evening. more widespread chances for 
showers and thunderstorms expected later saturday into sunday, as 
the cold front crosses the lake.


lmz261-362-364-366-563-565-567-868-021530-
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-
306 am cdt wed jul 2 2025

sheboygan wi to pentwater mi north...

.today...west winds 10 to 15 kt becoming southwest 10 to 20 kt.
chance of showers and thunderstorms this afternoon. waves 1 to
2 ft. 
.tonight...southwest winds 10 to 15 kt veering to northwest 5 to
10 kt. chance of showers and thunderstorms in the evening, then
slight chance of showers overnight. waves 1 to 2 ft. 
.thursday...north winds 5 to 10 kt becoming northeast 10 to
15 kt. waves 1 ft or less. 
.thursday night...east winds 5 to 10 kt becoming southeast. waves
1 ft or less. 
.friday...south winds 10 to 15 kt increasing to 10 to 20 kt.
waves 1 to 2 ft building to 1 to 3 ft. 
.friday night...south winds 10 to 20 kt. waves 2 to 4 ft. 
.saturday...southwest winds 15 to 25 kt becoming south. chance of
showers. waves 3 to 5 ft. 
.sunday...west winds 10 to 20 kt becoming northwest. chance of
showers. waves 2 to 4 ft.  

$$
fzus63 kmkx 020806
glflm 
expires:202507021530;;740784

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
306 am cdt wed jul 2 2025

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 30.0 inches will linger across the middle 
mississippi river valley today into thursday, before moving to 
the east by friday. light southwest to west winds will continue 
today into tonight. light north to northeast winds thursday into
thursday night will shift south to southwest on friday, as a warm
front moves north through the region. 

south to southwest winds will then increase friday night into 
saturday night, as low pressure around 29.6 inches moves across 
lake superior and ontario and pulls a cold front through the 
region.

there will be mainly small chances for showers and thunderstorms 
at times this afternoon and evening. more widespread chances for 
showers and thunderstorms expected later saturday into sunday, as 
the cold front crosses the lake.


lmz080-669-671-673-675-777-779-870-872-874-876-878-021530-
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-
306 am cdt wed jul 2 2025

sheboygan wi to pentwater mi south...

.today...west winds 10 to 15 kt becoming southwest 5 to 10 kt.
slight chance of showers and thunderstorms this afternoon. waves
1 to 2 ft. 
.tonight...southwest winds 10 to 15 kt becoming northwest 5 to
10 kt. slight chance of showers and thunderstorms in the evening.
waves 1 to 2 ft. 
.thursday...northwest winds 5 to 10 kt becoming northeast 10 to
15 kt. waves 1 ft or less. 
.thursday night...east winds 5 to 10 kt becoming southeast. waves
1 ft or less. 
.friday...south winds 10 to 15 kt increasing to 10 to 20 kt.
waves 1 to 3 ft. 
.friday night...south winds 10 to 20 kt. waves 2 to 4 ft. 
.saturday...south winds 15 to 25 kt. waves 3 to 5 ft. 
.sunday...southwest winds 10 to 20 kt. chance of showers. waves
2 to 4 ft.  

$$
fzus63 kmqt 020803
glfls 
expires:202507022000;;740307

open lake forecast for lake superior
national weather service marquette mi
402 am edt wed jul 2 2025

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...

29.9 inch ridging moves in today before building to 30.0 inches 
tonight; the 30.0 inch ridging remains across the upper great lakes 
into friday. afterwards, low pressure emerging from the northern 
rockies into central canada brings a 29.7 inch trough through lake 
superior saturday into sunday. high pressure builds into the upper 
great lakes early next week.



lsz162-022000-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
402 am edt wed jul 2 2025 /302 am cdt wed jul 2 2025/

.early this morning...west winds 5 to 15 knots. waves calm to
2 feet. 
.today...west winds 10 to 20 knots backing southwest in the
afternoon. scattered showers and isolated thunderstorms. waves
calm to 2 feet. 
.tonight...west winds 5 to 15 knots veering northeast after
midnight. waves calm to 2 feet. 
.thursday...northeast winds 5 to 15 knots increasing to 10 to
20 knots in the afternoon. waves calm to 2 feet. 
.thursday night...northeast winds 5 to 15 knots. a slight chance
of showers and thunderstorms after midnight. waves calm to
2 feet. 
.friday...east winds 5 to 15 knots increasing to 10 to 20 knots
by mid afternoon. a chance of showers. waves calm to 2 feet. 
.friday night...south winds 10 to 20 knots veering southwest
after midnight. showers likely and a chance of thunderstorms.
waves calm to 2 feet. 
.saturday...southwest winds 10 to 20 knots veering northwest.
showers. a chance of thunderstorms. a chance of showers. waves
calm to 2 feet. 
.sunday...northeast winds 10 to 20 knots becoming north 5 to
15 knots. a chance of showers. waves calm to 2 feet. 

$$
fzus63 kmqt 020803
glfls 
expires:202507022000;;740308

open lake forecast for lake superior
national weather service marquette mi
402 am edt wed jul 2 2025

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...

29.9 inch ridging moves in today before building to 30.0 inches 
tonight; the 30.0 inch ridging remains across the upper great lakes 
into friday. afterwards, low pressure emerging from the northern 
rockies into central canada brings a 29.7 inch trough through lake 
superior saturday into sunday. high pressure builds into the upper 
great lakes early next week.



lsz263-022000-
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-
402 am edt wed jul 2 2025

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

$$
fzus63 kmqt 020803
glfls 
expires:202507022000;;740309

open lake forecast for lake superior
national weather service marquette mi
402 am edt wed jul 2 2025

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...

29.9 inch ridging moves in today before building to 30.0 inches 
tonight; the 30.0 inch ridging remains across the upper great lakes 
into friday. afterwards, low pressure emerging from the northern 
rockies into central canada brings a 29.7 inch trough through lake 
superior saturday into sunday. high pressure builds into the upper 
great lakes early next week.



lsz264-022000-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
402 am edt wed jul 2 2025

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

$$
fzus63 kmqt 020803
glfls 
expires:202507022000;;740310

open lake forecast for lake superior
national weather service marquette mi
402 am edt wed jul 2 2025

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...

29.9 inch ridging moves in today before building to 30.0 inches 
tonight; the 30.0 inch ridging remains across the upper great lakes 
into friday. afterwards, low pressure emerging from the northern 
rockies into central canada brings a 29.7 inch trough through lake 
superior saturday into sunday. high pressure builds into the upper 
great lakes early next week.



lsz265-022000-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
402 am edt wed jul 2 2025

.early this morning...west winds 10 to 20 knots. waves calm to
2 feet. 
.today...west winds 10 to 20 knots becoming southwest 5 to
15 knots late. isolated showers and thunderstorms by mid
afternoon. waves calm to 2 feet. 
.tonight...southwest winds 5 to 15 knots veering north after
midnight. waves calm to 2 feet. 
.thursday...northeast winds 5 to 15 knots veering east in the
afternoon. waves calm to 2 feet. 
.thursday night...southeast winds 5 to 15 knots increasing to
10 to 20 knots after midnight. waves calm to 2 feet. 
.friday...southeast winds 10 to 20 knots increasing to 15 to
25 knots by mid afternoon. waves calm to 2 feet. 
.friday night...south winds 15 to 25 knots. a chance of showers.
waves calm to 2 feet. 
.saturday...south winds 15 to 25 knots becoming northwest 10 to
20 knots. showers likely and a chance of thunderstorms. waves
calm to 2 feet. 
.sunday...north winds 10 to 20 knots becoming northwest 5 to
15 knots. a chance of showers. waves calm to 2 feet. 

$$
fzus63 kmqt 020803
glfls 
expires:202507022000;;740311

open lake forecast for lake superior
national weather service marquette mi
402 am edt wed jul 2 2025

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...

29.9 inch ridging moves in today before building to 30.0 inches 
tonight; the 30.0 inch ridging remains across the upper great lakes 
into friday. afterwards, low pressure emerging from the northern 
rockies into central canada brings a 29.7 inch trough through lake 
superior saturday into sunday. high pressure builds into the upper 
great lakes early next week.



lsz266-022000-
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-
402 am edt wed jul 2 2025

.early this morning...west winds 10 to 20 knots. waves 1 to
3 feet. 
.today...west winds 10 to 20 knots diminishing to 5 to 15 knots
late. waves subsiding to calm to 2 feet. 
.tonight...west winds 5 to 15 knots veering north after midnight.
waves calm to 2 feet. 
.thursday...north winds 5 to 15 knots veering east late. waves
calm to 2 feet. 
.thursday night...southeast winds 5 to 15 knots. waves calm to
2 feet. 
.friday...southeast winds 10 to 20 knots increasing to 15 to
25 knots by mid afternoon. waves building to 1 to 3 feet. 
.friday night...south winds 15 to 25 knots. a chance of showers.
waves building to 2 to 4 feet. 
.saturday...south winds 10 to 20 knots veering northwest. showers
likely and a chance of thunderstorms. waves subsiding to calm to
2 feet. 
.sunday...north winds 10 to 20 knots. a chance of showers. waves
calm to 2 feet. 

$$
fzus63 kmqt 020803
glfls 
expires:202507022000;;740312

open lake forecast for lake superior
national weather service marquette mi
402 am edt wed jul 2 2025

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...

29.9 inch ridging moves in today before building to 30.0 inches 
tonight; the 30.0 inch ridging remains across the upper great lakes 
into friday. afterwards, low pressure emerging from the northern 
rockies into central canada brings a 29.7 inch trough through lake 
superior saturday into sunday. high pressure builds into the upper 
great lakes early next week.



lsz267-022000-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
402 am edt wed jul 2 2025

.early this morning...west winds 5 to 15 knots. waves calm to
2 feet. 
.today...west winds 5 to 15 knots increasing to 10 to 20 knots in
the afternoon. waves calm to 2 feet. 
.tonight...west winds 5 to 15 knots veering north late. waves
calm to 2 feet. 
.thursday...north winds 5 to 15 knots backing northwest in the
afternoon. waves calm to 2 feet. 
.thursday night...southeast winds 5 to 15 knots. waves calm to
2 feet. 
.friday...southeast winds 10 to 20 knots. waves building to 1 to
3 feet. 
.friday night...south winds 15 to 25 knots. a chance of showers.
waves building to 2 to 4 feet. 
.saturday...south winds 10 to 20 knots. showers likely and a
chance of thunderstorms. waves subsiding to calm to 2 feet. 
.sunday...north winds 10 to 20 knots. a chance of showers. waves
calm to 2 feet. 

$$
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