fzus63 kdtx 080711
glflh 
expires:202507081515;;073924

open lake forecast for lake huron
national weather service detroit/pontiac mi
311 am edt tue jul 8 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...mainly dry conditions overnight into tuesday as high
pressure builds further into the central great lakes. turning
warmer and more humid wednesday with the arrival of a low
pressure system. expect a period of showers and thunderstorms
with the system's warm front and trailing cold front. additional
storms are possible thursday.


lhz361-081515-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
311 am edt tue jul 8 2025

.today...light and variable winds. waves 2 feet or less. 
.tonight...light and variable winds. waves 2 feet or less. 
.wednesday...light and variable winds. waves 2 feet or less. 
.wednesday night...light and variable winds. waves 2 feet or
less. 
.thursday...light and variable winds. waves 2 feet or less. 
.friday...light and variable winds becoming east 5 to 10 knots.
waves 2 feet or less. 
.saturday...southeast winds 5 to 10 knots. a chance of showers.
waves 1 to 3 feet. 


$$

fzus63 kdtx 080711
glflh 
expires:202507081515;;073925

open lake forecast for lake huron
national weather service detroit/pontiac mi
311 am edt tue jul 8 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...mainly dry conditions overnight into tuesday as high
pressure builds further into the central great lakes. turning
warmer and more humid wednesday with the arrival of a low
pressure system. expect a period of showers and thunderstorms
with the system's warm front and trailing cold front. additional
storms are possible thursday.


lhz362-363-081515-
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-
311 am edt tue jul 8 2025

.today...light and variable winds. waves 2 feet or less. 
.tonight...light and variable winds. waves 2 feet or less. 
.wednesday...east winds 5 to 10 knots until late afternoon
becoming light and variable. a chance of showers. waves 2 feet or
less. 
.wednesday night...northeast winds 5 to 10 knots. waves 2 feet or
less. 
.thursday...north winds 5 to 10 knots becoming light and
variable. waves 2 feet or less. 
.friday...light and variable winds becoming southeast 5 to
10 knots. waves 2 feet or less. 
.saturday...southeast winds 5 to 10 knots becoming south 10 to
15 knots. a chance of showers. waves 1 to 3 feet. 


$$

fzus63 kdtx 080711
glflh 
expires:202507081515;;073926

open lake forecast for lake huron
national weather service detroit/pontiac mi
311 am edt tue jul 8 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...mainly dry conditions overnight into tuesday as high
pressure builds further into the central great lakes. turning
warmer and more humid wednesday with the arrival of a low
pressure system. expect a period of showers and thunderstorms
with the system's warm front and trailing cold front. additional
storms are possible thursday.


lhz462>464-081515-
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-
311 am edt tue jul 8 2025

.today...light and variable winds. waves 2 feet or less. 
.tonight...light and variable winds. waves 2 feet or less. 
.wednesday...southeast winds 5 to 10 knots backing to the
northeast early in the afternoon. a chance of showers in the
morning...then a chance of showers and thunderstorms in the
afternoon. waves 2 feet or less. 
.wednesday night...northeast winds 5 to 10 knots backing to the
north in the late evening and overnight. waves 2 feet or less. 
.thursday...north winds 5 to 10 knots becoming light and
variable. waves 2 feet or less. 
.friday...light and variable winds becoming southeast 5 to
10 knots until early morning. waves 2 feet or less. 
.saturday...southeast winds 5 to 10 knots becoming south 10 to
15 knots in the late evening and early morning. a chance of
showers. waves 2 feet or less. 


$$

fzus63 kmkx 080742
glflm 
expires:202507081515;;074804

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
242 am cdt tue jul 8 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... 

30.1 inch high pressure is centered along the ontario-quebec 
border early this morning, encouraging continued light and 
variable winds across the open waters. winds will shift out of the
southeast today as 29.9 inch low pressure moves east along the 
wisconsin-upper michigan border. the low will advance into lower 
michigan tonight, dragging a cold front across lake michigan in 
the process. the front's passage will result in a northerly wind 
shift across the open waters by wednesday morning. periods of 
showers and thunderstorms are anticipated today through tonight, 
with severe weather not expected. northerly winds will persist 
into thursday morning, becoming light and variable thursday 
afternoon as 30.0 inch high pressure moves across lake michigan. 
south to southeast winds will re-establish on friday as a broad 
area of 29.6 inch low pressure moves into the northern great 
plains. additional showers and thunderstorms are forecast friday 
through saturday.


lmz261-362-364-366-563-565-567-868-081515-
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-
242 am cdt tue jul 8 2025

sheboygan wi to pentwater mi north...

.today...southeast winds less than 10 kt becoming south late this
morning, then becoming 10 to 15 kt early this afternoon becoming
south 10 to 15 kt late. slight chance of showers this morning,
then chance of showers and slight chance of thunderstorms this
afternoon. waves 1 to 2 ft. 
.tonight...southeast winds 5 to 10 kt backing to north. chance of
showers and slight chance of thunderstorms in the evening, then
slight chance of showers overnight. waves 1 to 2 ft. 
.wednesday...north winds 10 to 15 kt increasing to 10 to 20 kt.
waves 1 to 3 ft. 
.wednesday night...north winds 10 to 15 kt diminishing to 5 to
10 kt. waves 1 to 3 ft. 
.thursday...north winds 5 to 10 kt increasing to 10 to 15 kt.
waves 1 ft or less. 
.thursday night...southeast winds 5 to 10 kt becoming south.
waves nearly calm. 
.friday...south winds 10 to 15 kt. waves 1 to 2 ft. 
.saturday...south winds 10 to 20 kt becoming southwest. chance of
showers. waves 2 to 4 ft.  

$$

fzus63 kmkx 080742
glflm 
expires:202507081515;;074805

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
242 am cdt tue jul 8 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... 

30.1 inch high pressure is centered along the ontario-quebec 
border early this morning, encouraging continued light and 
variable winds across the open waters. winds will shift out of the
southeast today as 29.9 inch low pressure moves east along the 
wisconsin-upper michigan border. the low will advance into lower 
michigan tonight, dragging a cold front across lake michigan in 
the process. the front's passage will result in a northerly wind 
shift across the open waters by wednesday morning. periods of 
showers and thunderstorms are anticipated today through tonight, 
with severe weather not expected. northerly winds will persist 
into thursday morning, becoming light and variable thursday 
afternoon as 30.0 inch high pressure moves across lake michigan. 
south to southeast winds will re-establish on friday as a broad 
area of 29.6 inch low pressure moves into the northern great 
plains. additional showers and thunderstorms are forecast friday 
through saturday.


lmz080-669-671-673-675-777-779-870-872-874-876-878-081515-
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-
242 am cdt tue jul 8 2025

sheboygan wi to pentwater mi south...

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

$$

fzus63 kmqt 080802
glfls 
expires:202507082000;;075590

open lake forecast for lake superior
national weather service marquette mi
401 am edt tue jul 8 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...

a weak 30.0 to 30.1 inch ridge stays in place over lake superior 
through much of this week. that being said, a weak 29.9 inch low 
pivots into lake superior this morning, tracking from minnesota and 
wisconsin tonight to the remainder of the upper great lakes tuesday 
and tuesday night. ridging is pushed east by a 29.7 inch phasing low 
over the northern plains on friday, with the low deepening to 29.5 
inches over the southern manitoba/northern ontario border by 
saturday as 29.7 inch troughing moves over lake superior.



lsz162-082000-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
401 am edt tue jul 8 2025 /301 am cdt tue jul 8 2025/

.early this morning...northeast winds 5 to 15 knots. a slight
chance of showers and thunderstorms. waves calm to 2 feet. 
.today...northeast winds 5 to 15 knots. waves calm to 2 feet. 
.tonight...northeast winds 5 to 15 knots backing northwest late.
waves calm to 2 feet. 
.wednesday...northwest winds 5 to 15 knots backing southwest in
the afternoon. waves calm to 2 feet. 
.wednesday night...east winds 5 to 15 knots. waves calm to
2 feet. 
.thursday...east winds 5 to 15 knots. waves calm to 2 feet. 
.thursday night...northeast winds 5 to 15 knots. a chance of
showers after midnight. waves calm to 2 feet. 
.friday...east winds 5 to 15 knots becoming northeast 10 to
20 knots. showers likely and a chance of thunderstorms. waves
calm to 2 feet. 
.saturday...west winds 10 to 20 knots. a chance of showers. waves
calm to 2 feet. 

$$

fzus63 kmqt 080802
glfls 
expires:202507082000;;075591

open lake forecast for lake superior
national weather service marquette mi
401 am edt tue jul 8 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...

a weak 30.0 to 30.1 inch ridge stays in place over lake superior 
through much of this week. that being said, a weak 29.9 inch low 
pivots into lake superior this morning, tracking from minnesota and 
wisconsin tonight to the remainder of the upper great lakes tuesday 
and tuesday night. ridging is pushed east by a 29.7 inch phasing low 
over the northern plains on friday, with the low deepening to 29.5 
inches over the southern manitoba/northern ontario border by 
saturday as 29.7 inch troughing moves over lake superior.



lsz263-082000-
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 am edt tue jul 8 2025

.early this morning...east winds 5 to 15 knots. a chance of
showers and thunderstorms. waves calm to 2 feet. 
.today...east winds 5 to 15 knots backing northeast in the
afternoon. a slight chance of showers and thunderstorms through
early afternoon. waves calm to 2 feet. 
.tonight...northeast winds 5 to 15 knots becoming north less than
10 knots after midnight. waves calm to 2 feet. 
.wednesday...north winds less than 10 knots becoming northwest
5 to 15 knots in the afternoon, then backing west late. waves
calm to 2 feet. 
.wednesday night...west winds less than 10 knots backing east
after midnight. waves calm to 2 feet. 
.thursday...east winds 5 to 15 knots. waves calm to 2 feet. 
.thursday night...east winds 5 to 15 knots veering south after
midnight. waves calm to 2 feet. 
.friday...east winds 5 to 15 knots. a chance of showers. a chance
of thunderstorms. showers likely. waves calm to 2 feet. 
.saturday...west winds 5 to 15 knots. a chance of showers. waves
calm to 2 feet. 

$$

fzus63 kmqt 080802
glfls 
expires:202507082000;;075592

open lake forecast for lake superior
national weather service marquette mi
401 am edt tue jul 8 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...

a weak 30.0 to 30.1 inch ridge stays in place over lake superior 
through much of this week. that being said, a weak 29.9 inch low 
pivots into lake superior this morning, tracking from minnesota and 
wisconsin tonight to the remainder of the upper great lakes tuesday 
and tuesday night. ridging is pushed east by a 29.7 inch phasing low 
over the northern plains on friday, with the low deepening to 29.5 
inches over the southern manitoba/northern ontario border by 
saturday as 29.7 inch troughing moves over lake superior.



lsz264-082000-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
401 am edt tue jul 8 2025

.early this morning...east winds 5 to 15 knots. a chance of
showers and a slight chance of thunderstorms. waves calm to
2 feet. 
.today...east winds 5 to 15 knots backing northeast late. a
chance of showers and thunderstorms. waves calm to 2 feet. 
.tonight...northeast winds less than 10 knots backing north after
midnight. a slight chance of showers through midnight. waves calm
to 2 feet. 
.wednesday...north winds 5 to 15 knots backing west late. waves
calm to 2 feet. 
.wednesday night...west winds less than 10 knots. waves calm to
2 feet. 
.thursday...south winds 5 to 15 knots backing southeast by mid
afternoon. waves calm to 2 feet. 
.thursday night...southeast winds 5 to 15 knots. waves calm to
2 feet. 
.friday...southeast winds 5 to 15 knots. a chance of showers.
waves calm to 2 feet. 
.saturday...southeast winds 5 to 15 knots veering west. a chance
of showers. waves calm to 2 feet. 

$$

fzus63 kmqt 080802
glfls 
expires:202507082000;;075593

open lake forecast for lake superior
national weather service marquette mi
401 am edt tue jul 8 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...

a weak 30.0 to 30.1 inch ridge stays in place over lake superior 
through much of this week. that being said, a weak 29.9 inch low 
pivots into lake superior this morning, tracking from minnesota and 
wisconsin tonight to the remainder of the upper great lakes tuesday 
and tuesday night. ridging is pushed east by a 29.7 inch phasing low 
over the northern plains on friday, with the low deepening to 29.5 
inches over the southern manitoba/northern ontario border by 
saturday as 29.7 inch troughing moves over lake superior.



lsz265-082000-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
401 am edt tue jul 8 2025

.early this morning...southeast winds 10 to 20 knots. a slight
chance of showers. waves calm to 2 feet. 
.today...southeast winds 10 to 20 knots backing east late. a
chance of showers and thunderstorms. waves calm to 2 feet. 
.tonight...northeast winds 5 to 15 knots backing northwest late.
waves calm to 2 feet. 
.wednesday...northwest winds 5 to 15 knots increasing to 10 to
20 knots in the afternoon, then diminishing to 5 to 15 knots
late. waves calm to 2 feet. 
.wednesday night...northwest winds 5 to 15 knots diminishing to
less than 10 knots after midnight. waves calm to 2 feet. 
.thursday...east winds 5 to 15 knots increasing to 10 to 20 knots
by mid afternoon. waves calm to 2 feet. 
.thursday night...southeast winds 10 to 20 knots veering south
after midnight. waves calm to 2 feet. 
.friday...southeast winds 10 to 20 knots. a chance of showers.
waves calm to 2 feet. 
.saturday...southeast winds 10 to 20 knots veering west. a chance
of showers. waves calm to 2 feet. 

$$

fzus63 kmqt 080802
glfls 
expires:202507082000;;075594

open lake forecast for lake superior
national weather service marquette mi
401 am edt tue jul 8 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...

a weak 30.0 to 30.1 inch ridge stays in place over lake superior 
through much of this week. that being said, a weak 29.9 inch low 
pivots into lake superior this morning, tracking from minnesota and 
wisconsin tonight to the remainder of the upper great lakes tuesday 
and tuesday night. ridging is pushed east by a 29.7 inch phasing low 
over the northern plains on friday, with the low deepening to 29.5 
inches over the southern manitoba/northern ontario border by 
saturday as 29.7 inch troughing moves over lake superior.



lsz266-082000-
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 am edt tue jul 8 2025

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

$$

fzus63 kmqt 080802
glfls 
expires:202507082000;;075595

open lake forecast for lake superior
national weather service marquette mi
401 am edt tue jul 8 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...

a weak 30.0 to 30.1 inch ridge stays in place over lake superior 
through much of this week. that being said, a weak 29.9 inch low 
pivots into lake superior this morning, tracking from minnesota and 
wisconsin tonight to the remainder of the upper great lakes tuesday 
and tuesday night. ridging is pushed east by a 29.7 inch phasing low 
over the northern plains on friday, with the low deepening to 29.5 
inches over the southern manitoba/northern ontario border by 
saturday as 29.7 inch troughing moves over lake superior.



lsz267-082000-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
401 am edt tue jul 8 2025

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

$$