fzus63 kdtx 051348
glflh 
expires:202507052200;;919681

open lake forecast for lake huron
national weather service detroit/pontiac mi
948 am edt sat jul 5 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...low pressure, 29.70 inches, slides across the northern
great lakes this weekend. its attendant cold front sinks across
the central great lakes late saturday night through sunday
offering scattered thunderstorm chances. a few storms could
linger over the southern great lakes monday before high pressure
builds in.


lhz361-052200-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
948 am edt sat jul 5 2025

.rest of today...southwest winds 10 to 15 knots with gusts to 20
knots. waves 1 to 3 feet. 
.tonight...south winds 5 to 10 knots becoming southwest 10 to
15 knots after midnight. showers likely and a chance of
thunderstorms after midnight. waves 2 to 4 feet. 
.sunday...southwest winds 10 to 15 knots becoming west 5 to
10 knots in the late morning and afternoon. a chance of showers.
waves 1 to 3 feet. 
.sunday night...north winds 5 to 10 knots. waves 2 feet or less. 
.monday...north winds 5 to 10 knots becoming light and variable.
waves 2 feet or less. 
.tuesday...light and variable winds. waves 2 feet or less. 
.wednesday...light and variable winds becoming northwest 5 to
10 knots in the late morning and early afternoon...then veering
to the north until early morning. waves 2 feet or less. 


$$

fzus63 kdtx 051348
glflh 
expires:202507052200;;919682

open lake forecast for lake huron
national weather service detroit/pontiac mi
948 am edt sat jul 5 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...low pressure, 29.70 inches, slides across the northern
great lakes this weekend. its attendant cold front sinks across
the central great lakes late saturday night through sunday
offering scattered thunderstorm chances. a few storms could
linger over the southern great lakes monday before high pressure
builds in.


lhz362-363-052200-
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-
948 am edt sat jul 5 2025

.rest of today...south winds around 20 knots. waves 3 to 5 feet. 
.tonight...south winds 15 to 20 knots decreasing to 10 to
15 knots late in the evening...then increasing to 15 to 20 knots
after midnight. a chance of showers after midnight. waves 3 to
5 feet. 
.sunday...southwest winds 15 to 20 knots decreasing to 10 to
15 knots in the late morning and afternoon. a chance of showers.
waves 3 to 5 feet. 
.sunday night...west winds 10 to 15 knots veering to the north in
the late evening and overnight. waves 2 to 4 feet subsiding to
1 to 3 feet in the late evening and overnight. 
.monday...north winds 10 to 15 knots decreasing to 5 to 10 knots.
waves 1 to 3 feet. 
.tuesday...light and variable winds. waves 2 feet or less. 
.wednesday...north winds 5 to 10 knots veering to the east in the
late evening and early morning. waves 2 feet or less. 


$$

fzus63 kdtx 051348
glflh 
expires:202507052200;;919683

open lake forecast for lake huron
national weather service detroit/pontiac mi
948 am edt sat jul 5 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...low pressure, 29.70 inches, slides across the northern
great lakes this weekend. its attendant cold front sinks across
the central great lakes late saturday night through sunday
offering scattered thunderstorm chances. a few storms could
linger over the southern great lakes monday before high pressure
builds in.


lhz462>464-052200-
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-
948 am edt sat jul 5 2025

.rest of today...south winds around 15 knots. waves 1 to 3 feet. 
.tonight...south winds 10 to 15 knots. waves 2 to 4 feet. 
.sunday...southwest winds 10 to 15 knots. a chance of showers in
the morning...then a chance of showers and thunderstorms in the
afternoon. waves 2 to 4 feet. 
.sunday night...west winds 10 to 15 knots. a chance of showers in
the evening. waves 1 to 3 feet. 
.monday...north winds 10 to 15 knots decreasing to 5 to 10 knots
late in the afternoon. waves 1 to 3 feet. 
.tuesday...north winds 5 to 10 knots veering to the east in the
late evening and early morning. waves 2 feet or less. 
.wednesday...northeast winds 5 to 10 knots. waves 2 feet or less.


$$

fzus63 kmkx 051402
glflm 
expires:202507052130;;920177

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
902 am cdt sat jul 5 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... 

low pressure of 29.8 inches will move east through the northern 
great lakes region exiting sunday night. southerly winds will 
increase across the lake today as it approaches. as the low moves 
through the upper peninsula of michigan tonight, a cold front 
will cross the open waters. rain and thunderstorms are expected 
along and ahead of the front. a few stronger storms will be 
possible with gusty winds being the main hazard. the front and 
storms will linger across southeastern portion of the lake through
sunday afternoon. winds will shift to the north to northwest 
behind the front. north to northwest winds will remain across the 
entire lake until mid day monday. 

high pressure of 30.0 inches will approach and cross over the 
northern open waters monday evening. fair conditions and weakening 
winds are expected throughout the day. light and variable winds are 
expected monday night. a second area of high pressure around 30.1 
inches will move in behind the first keeping winds light and 
variable through mid-week. tuesday there is a small chance of 
showers and isolated thunderstorms as heat and humidity builds back 
into the great lakes region.


lmz261-362-364-366-563-565-567-868-052130-
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-
902 am cdt sat jul 5 2025

sheboygan wi to pentwater mi north...

.rest of today...southwest winds 10 to 20 kt becoming south to
30 kt. slight chance of showers and thunderstorms this afternoon.
waves 3 to 5 ft. 
.tonight...southwest winds to 30 kt diminishing to 15 to 25 kt
late in the evening, then diminishing to 10 to 20 kt after
midnight becoming west late. showers likely with a chance of
thunderstorms in the evening, then chance of showers and
thunderstorms overnight. waves 3 to 5 ft. 
.sunday...northwest winds 10 to 20 kt becoming north 15 to 25 kt.
waves 3 to 5 ft. 
.sunday night...north winds 15 to 25 kt diminishing to 10 to
20 kt. waves 3 to 5 ft. 
.monday...north winds 10 to 15 kt increasing to 10 to 20 kt.
waves 1 to 3 ft. 
.monday night...northeast winds 10 to 15 kt veering to southeast
5 to 10 kt. waves 1 to 2 ft. 
.tuesday...south winds 5 to 10 kt becoming southwest 10 to 15 kt.
waves 1 ft or less. 
.wednesday...northeast winds 5 to 10 kt becoming north 10 to
15 kt. waves 1 ft or less.  

$$

fzus63 kmkx 051402
glflm 
expires:202507052130;;920178

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
902 am cdt sat jul 5 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... 

low pressure of 29.8 inches will move east through the northern 
great lakes region exiting sunday night. southerly winds will 
increase across the lake today as it approaches. as the low moves 
through the upper peninsula of michigan tonight, a cold front 
will cross the open waters. rain and thunderstorms are expected 
along and ahead of the front. a few stronger storms will be 
possible with gusty winds being the main hazard. the front and 
storms will linger across southeastern portion of the lake through
sunday afternoon. winds will shift to the north to northwest 
behind the front. north to northwest winds will remain across the 
entire lake until mid day monday. 

high pressure of 30.0 inches will approach and cross over the 
northern open waters monday evening. fair conditions and weakening 
winds are expected throughout the day. light and variable winds are 
expected monday night. a second area of high pressure around 30.1 
inches will move in behind the first keeping winds light and 
variable through mid-week. tuesday there is a small chance of 
showers and isolated thunderstorms as heat and humidity builds back 
into the great lakes region.


lmz080-669-671-673-675-777-779-870-872-874-876-878-052130-
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-
902 am cdt sat jul 5 2025

sheboygan wi to pentwater mi south...

.rest of today...southwest winds 10 to 20 kt becoming south 15 to
25 kt. waves 3 to 5 ft. 
.tonight...south winds 15 to 25 kt becoming southwest 10 to
20 kt. chance of showers and thunderstorms. waves 3 to 5 ft.
.sunday...southwest winds 10 to 20 kt veering to north 15 to
25 kt. chance of showers and thunderstorms. waves 3 to 5 ft.
.sunday night...north winds 15 to 25 kt diminishing to 10 to
20 kt. waves 4 to 6 ft occasionally to 8 ft. 
.monday...north winds 10 to 15 kt increasing to 10 to 20 kt.
waves 3 to 5 ft. 
.monday night...northeast winds 10 to 15 kt diminishing to 5 to
10 kt. waves 1 to 3 ft. 
.tuesday...west winds 5 to 10 kt becoming south 10 to 15 kt.
waves 1 to 2 ft. 
.wednesday...southeast winds 5 to 10 kt backing to northeast
10 to 15 kt. waves 1 ft or less.  

$$

fzus63 kmqt 051402
glfls 
expires:202507052000;;920169

open lake forecast for lake superior
national weather service marquette mi
1001 am edt sat jul 5 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 29.8 inch trough is analyzed over lake superior this morning, 
extending from a 29.5 inch low over hudson bay. this trough remains 
in place through the rest of today, then begins to slide eastward 
tonight. meanwhile, 30.1 inch high pressure builds over the northern 
plains. this high moves over the great lakes basin late sunday, then 
migrates eastward monday. tuesday, another high builds across hudson 
bay which will sustain 30.0 or 30.1 inch ridging through at least 
early thursday.



lsz162-052000-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
1001 am edt sat jul 5 2025 /901 am cdt sat jul 5 2025/

.rest of today...south winds 5 to 15 knots becoming west 10 to
20 knots in the afternoon, then veering northwest late. patchy
fog by late morning. showers by late morning. a chance of
thunderstorms. a slight chance of showers by mid afternoon. waves
calm to 2 feet. 
.tonight...northwest winds 10 to 20 knots becoming north 5 to
15 knots after midnight, then increasing to 10 to 20 knots late.
a slight chance of showers through midnight. waves calm to
2 feet. 
.sunday...northeast winds 10 to 20 knots veering east in the
afternoon, then becoming northeast 5 to 15 knots late. waves
building to 1 to 3 feet, then subsiding to calm to 2 feet. 
.sunday night...northeast winds 5 to 15 knots. waves calm to
2 feet. 
.monday...east winds 5 to 15 knots. a slight chance of showers by
mid afternoon. waves calm to 2 feet. 
.monday night...northeast winds 5 to 15 knots. showers likely and
a chance of thunderstorms. waves calm to 2 feet. 
.tuesday...east winds 5 to 15 knots backing northeast. a chance
of showers. waves calm to 2 feet. 
.wednesday...east winds 5 to 15 knots backing northeast. waves
calm to 2 feet. 

$$

fzus63 kmqt 051402
glfls 
expires:202507052000;;920170

open lake forecast for lake superior
national weather service marquette mi
1001 am edt sat jul 5 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 29.8 inch trough is analyzed over lake superior this morning, 
extending from a 29.5 inch low over hudson bay. this trough remains 
in place through the rest of today, then begins to slide eastward 
tonight. meanwhile, 30.1 inch high pressure builds over the northern 
plains. this high moves over the great lakes basin late sunday, then 
migrates eastward monday. tuesday, another high builds across hudson 
bay which will sustain 30.0 or 30.1 inch ridging through at least 
early thursday.



lsz263-052000-
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 sat jul 5 2025

.rest of today...southwest winds 5 to 15 knots veering north
late. patchy fog by late morning. showers by late morning. a
chance of thunderstorms. a chance of showers by mid afternoon.
waves calm to 2 feet. 
.tonight...north winds 5 to 15 knots becoming northwest 10 to
20 knots after midnight, then veering north late. a chance of
showers through midnight. waves building to 1 to 3 feet. 
.sunday...northeast winds 10 to 20 knots diminishing to 5 to
15 knots late. waves subsiding to calm to 2 feet. 
.sunday night...north winds 5 to 15 knots diminishing to less
than 10 knots after midnight. waves calm to 2 feet. 
.monday...east winds 5 to 15 knots. waves calm to 2 feet. 
.monday night...east winds 5 to 15 knots. a chance of showers.
waves calm to 2 feet. 
.tuesday...northeast winds 5 to 15 knots. waves calm to 2 feet. 
.wednesday...northeast winds 5 to 15 knots veering east. waves
calm to 2 feet. 

$$

fzus63 kmqt 051402
glfls 
expires:202507052000;;920171

open lake forecast for lake superior
national weather service marquette mi
1001 am edt sat jul 5 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 29.8 inch trough is analyzed over lake superior this morning, 
extending from a 29.5 inch low over hudson bay. this trough remains 
in place through the rest of today, then begins to slide eastward 
tonight. meanwhile, 30.1 inch high pressure builds over the northern 
plains. this high moves over the great lakes basin late sunday, then 
migrates eastward monday. tuesday, another high builds across hudson 
bay which will sustain 30.0 or 30.1 inch ridging through at least 
early thursday.



lsz264-052000-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
1001 am edt sat jul 5 2025

.rest of today...southwest winds 5 to 15 knots backing south in
the afternoon, then backing north late. patchy fog. showers and a
chance of thunderstorms. waves calm to 2 feet. 
.tonight...north winds 5 to 15 knots increasing to 15 to
25 knots. a slight chance of thunderstorms through midnight. a
chance of showers. waves building to 2 to 4 feet. 
.sunday...north winds 10 to 20 knots becoming northwest 5 to
15 knots late. waves subsiding to calm to 2 feet. 
.sunday night...northwest winds 5 to 15 knots becoming north less
than 10 knots after midnight. waves calm to 2 feet. 
.monday...east winds less than 10 knots increasing to 5 to
15 knots by mid afternoon. waves calm to 2 feet. 
.monday night...southeast winds 5 to 15 knots backing east after
midnight. a chance of showers. waves calm to 2 feet. 
.tuesday...northeast winds 5 to 15 knots. waves calm to 2 feet. 
.wednesday...northeast winds 5 to 15 knots veering east. waves
calm to 2 feet. 

$$

fzus63 kmqt 051402
glfls 
expires:202507052000;;920172

open lake forecast for lake superior
national weather service marquette mi
1001 am edt sat jul 5 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 29.8 inch trough is analyzed over lake superior this morning, 
extending from a 29.5 inch low over hudson bay. this trough remains 
in place through the rest of today, then begins to slide eastward 
tonight. meanwhile, 30.1 inch high pressure builds over the northern 
plains. this high moves over the great lakes basin late sunday, then 
migrates eastward monday. tuesday, another high builds across hudson 
bay which will sustain 30.0 or 30.1 inch ridging through at least 
early thursday.



lsz265-052000-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
1001 am edt sat jul 5 2025

.rest of today...southwest winds 10 to 20 knots backing south in
the afternoon, then veering southwest late. a chance of showers
by late morning. a chance of thunderstorms. showers by mid
afternoon. patchy fog by mid afternoon. waves calm to 2 feet. 
.tonight...northwest winds 10 to 20 knots becoming north 15 to
25 knots late. a slight chance of thunderstorms through midnight.
a chance of showers. waves building to 2 to 4 feet. 
.sunday...north winds 15 to 25 knots diminishing to 10 to
20 knots late. waves subsiding to 1 to 3 feet. 
.sunday night...northwest winds 5 to 15 knots. waves subsiding to
calm to 2 feet. 
.monday...north winds 5 to 15 knots veering east by mid
afternoon. waves calm to 2 feet. 
.monday night...southeast winds 5 to 15 knots. a chance of
showers. waves calm to 2 feet. 
.tuesday...northeast winds 5 to 15 knots. a chance of showers.
waves calm to 2 feet. 
.wednesday...northeast winds 5 to 15 knots veering east. waves
calm to 2 feet. 

$$

fzus63 kmqt 051402
glfls 
expires:202507052000;;920173

open lake forecast for lake superior
national weather service marquette mi
1001 am edt sat jul 5 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 29.8 inch trough is analyzed over lake superior this morning, 
extending from a 29.5 inch low over hudson bay. this trough remains 
in place through the rest of today, then begins to slide eastward 
tonight. meanwhile, 30.1 inch high pressure builds over the northern 
plains. this high moves over the great lakes basin late sunday, then 
migrates eastward monday. tuesday, another high builds across hudson 
bay which will sustain 30.0 or 30.1 inch ridging through at least 
early thursday.



lsz266-052000-
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 sat jul 5 2025

.rest of today...south winds 10 to 20 knots. a chance of showers
by late morning. a chance of thunderstorms. showers by mid
afternoon. patchy fog by mid afternoon. waves 1 to 3 feet
subsiding to calm to 2 feet. 
.tonight...northwest winds 10 to 20 knots becoming north 15 to
25 knots after midnight. a slight chance of thunderstorms through
midnight. a chance of showers. waves building to 2 to 4 feet. 
.sunday...north winds 15 to 25 knots becoming northwest 10 to
20 knots late. waves building to 3 to 5 feet occasionally to
7 feet, then subsiding to 2 to 4 feet. 
.sunday night...north winds 5 to 15 knots. waves subsiding to
calm to 2 feet. 
.monday...north winds 5 to 15 knots. waves calm to 2 feet. 
.monday night...southeast winds 5 to 15 knots. a chance of
showers after midnight. waves calm to 2 feet. 
.tuesday...north winds 5 to 15 knots. waves calm to 2 feet. 
.wednesday...north winds 5 to 15 knots veering northeast. waves
calm to 2 feet. 

$$

fzus63 kmqt 051402
glfls 
expires:202507052000;;920174

open lake forecast for lake superior
national weather service marquette mi
1001 am edt sat jul 5 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 29.8 inch trough is analyzed over lake superior this morning, 
extending from a 29.5 inch low over hudson bay. this trough remains 
in place through the rest of today, then begins to slide eastward 
tonight. meanwhile, 30.1 inch high pressure builds over the northern 
plains. this high moves over the great lakes basin late sunday, then 
migrates eastward monday. tuesday, another high builds across hudson 
bay which will sustain 30.0 or 30.1 inch ridging through at least 
early thursday.



lsz267-052000-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
1001 am edt sat jul 5 2025

.rest of today...south winds 10 to 20 knots. patchy fog by mid
afternoon. showers likely and a chance of thunderstorms by mid
afternoon. waves 1 to 3 feet subsiding to calm to 2 feet. 
.tonight...southwest winds 10 to 20 knots veering west after
midnight, then veering north late. showers through midnight. a
chance of thunderstorms. a chance of showers after midnight.
waves building to 2 to 4 feet. 
.sunday...north winds 15 to 25 knots backing northwest late. a
slight chance of showers through early afternoon. waves building
to 3 to 5 feet occasionally to 7 feet, then subsiding to 2 to
4 feet. 
.sunday night...north winds 10 to 20 knots veering northeast
after midnight. waves subsiding to calm to 2 feet. 
.monday...northeast winds 10 to 20 knots backing northwest by mid
afternoon. waves calm to 2 feet. 
.monday night...northwest winds 5 to 15 knots backing south after
midnight. waves calm to 2 feet. 
.tuesday...northwest winds 5 to 15 knots. waves calm to 2 feet. 
.wednesday...northwest winds 10 to 20 knots becoming north 5 to
15 knots. waves calm to 2 feet. 

$$