fzus63 kdtx 130734
glflh 
expires:202503131545;;059112

open lake forecast for lake huron
national weather service detroit/pontiac mi
334 am edt thu mar 13 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...high pressure, 30.20 inches, over quebec will move to
the canadian maritimes by tomorrow morning. a ridge of high 
pressure, 30.10 inches, will extend across the eastern great lakes
through this time period. this will result in relatively tranquil
weather conditions. deepening low pressure is then forecast to 
move from the central plains friday into the western great lakes 
saturday. this system will result in windy conditions and periodic
showers through the weekend.


lhz361-131545-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
334 am edt thu mar 13 2025

.today...light and variable winds becoming east 5 to 10 knots
late in the afternoon. waves 2 feet or less. 
.tonight...southeast winds 5 to 10 knots increasing to 10 to
15 knots after midnight. waves 2 feet or less. 
.friday...east winds 10 to 15 knots. waves 1 to 3 feet building
to 2 to 4 feet in the late morning and afternoon. 
.friday night...east winds 10 to 15 knots increasing to 15 to
20 knots in the late evening and overnight. a chance of rain
after midnight. waves 4 to 6 feet building to 6 to 9 feet after
midnight. waves occasionally around 12 feet. 
.saturday...southeast winds 15 to 20 knots increasing to 20 to
25 knots late in the morning...then decreasing to 15 to 20 knots
late in the afternoon becoming south 10 to 15 knots late in the
evening. a chance of rain. waves 8 to 12 feet. waves occasionally
around 15 feet. 
.sunday...south winds 10 to 15 knots becoming west 15 to
20 knots. a chance of rain and snow. waves 4 to 6 feet. 
.monday...west winds 10 to 15 knots backing to the southwest
until early morning. waves 3 to 5 feet subsiding to 1 to 3 feet
in the late evening and early morning. waves occasionally around
8 feet. 


$$

fzus63 kdtx 130734
glflh 
expires:202503131545;;059113

open lake forecast for lake huron
national weather service detroit/pontiac mi
334 am edt thu mar 13 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...high pressure, 30.20 inches, over quebec will move to
the canadian maritimes by tomorrow morning. a ridge of high 
pressure, 30.10 inches, will extend across the eastern great lakes
through this time period. this will result in relatively tranquil
weather conditions. deepening low pressure is then forecast to 
move from the central plains friday into the western great lakes 
saturday. this system will result in windy conditions and periodic
showers through the weekend.


lhz362-363-131545-
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-
334 am edt thu mar 13 2025

.today...light and variable winds becoming southeast 5 to
10 knots. waves 2 feet or less. 
.tonight...southeast winds 5 to 10 knots. waves 2 feet or less. 
.friday...southeast winds 10 to 15 knots. waves 1 to 3 feet
building to 2 to 4 feet in the late morning and afternoon. 
.friday night...southeast winds 15 to 20 knots increasing to
20 to 25 knots after midnight. a chance of rain after midnight.
waves 4 to 6 feet building to 6 to 9 feet after midnight. waves
occasionally around 12 feet. 
.saturday...southeast winds 20 to 25 knots with gusts to around
30 knots increasing to 30 knots late in the morning...then
decreasing to 20 to 25 knots with gusts to around 30 knots late
in the afternoon becoming south 15 to 20 knots late in the
evening. a chance of rain. waves 10 to 14 feet. waves
occasionally around 18 feet. 
.sunday...south winds 10 to 15 knots becoming west 15 to
20 knots. a chance of rain early in the morning. waves 5 to
7 feet. waves occasionally around 10 feet. 
.monday...west winds 15 to 20 knots decreasing to 10 to 15 knots
in the late morning and early afternoon...then backing to the
south until early morning. waves 4 to 6 feet. waves occasionally
around 8 feet. 


$$

fzus63 kdtx 130734
glflh 
expires:202503131545;;059114

open lake forecast for lake huron
national weather service detroit/pontiac mi
334 am edt thu mar 13 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...high pressure, 30.20 inches, over quebec will move to
the canadian maritimes by tomorrow morning. a ridge of high 
pressure, 30.10 inches, will extend across the eastern great lakes
through this time period. this will result in relatively tranquil
weather conditions. deepening low pressure is then forecast to 
move from the central plains friday into the western great lakes 
saturday. this system will result in windy conditions and periodic
showers through the weekend.


lhz462>464-131545-
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-
334 am edt thu mar 13 2025

.today...light and variable winds. waves 2 feet or less. 
.tonight...northeast winds 5 to 10 knots veering to the southeast
after midnight. waves 2 feet or less. 
.friday...southeast winds 10 to 15 knots. waves 1 to 3 feet
building to 2 to 4 feet in the late morning and afternoon. 
.friday night...southeast winds 15 to 20 knots increasing to
20 to 25 knots after midnight. a chance of rain after midnight.
waves 4 to 6 feet building to 6 to 9 feet after midnight. waves
occasionally around 12 feet. 
.saturday...south winds 20 to 25 knots with gusts to around
30 knots increasing to 30 knots late in the morning...then
decreasing to 20 to 25 knots with gusts to around 30 knots late
in the afternoon decreasing to 15 to 20 knots late in the
evening. a chance of rain...then rain likely late in the
afternoon. waves 8 to 12 feet. waves occasionally around 15 feet.
.sunday...southwest winds 15 to 20 knots veering to the west
until early morning. a chance of rain early in the morning. waves
4 to 6 feet. waves occasionally around 8 feet. 
.monday...west winds 10 to 15 knots backing to the south until
early morning. waves 3 to 5 feet. 


$$

fzus63 kmkx 130826
glflm 
expires:202503131530;;062208

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
326 am cdt thu mar 13 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 over southeast ontario today 
will combine with broad low pressure around 29.2 inches in the 
northern rocky mountains to bring light east to southeast winds. 

strong low pressure will deepen to 28.9 inches in the central 
great plains tonight and friday, quickly progressing into the 
upper mississippi valley later friday night. southeast winds will
increase tonight and become gusty on friday and friday night,
becoming south saturday and southwest later saturday afternoon.

thunderstorms will develop move northeast across the lake later 
friday evening into the overnight hours, with rain showers 
continuing into saturday. a few stronger storms may occur friday
night as the storms move through.

southeast to south gusts may reach gale force later friday night 
through saturday over the southern half of the open waters, 
becoming southwest later saturday. trends will be monitored for 
potential gale watches or warnings in the coming forecasts friday 
night into saturday, especially for the southern half of the lake.
 
gusty winds will shift west to northwest later saturday night 
into sunday morning, as a cold front crosses the open waters.
winds will remain gusty into sunday night.


lmz080-669-671-673-675-777-779-870-872-874-876-878-131530-
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-
326 am cdt thu mar 13 2025

sheboygan wi to pentwater mi south...

.today...east winds 5 to 10 kt increasing to 10 to 15 kt. waves
1 ft or less. 
.tonight...east winds 10 to 15 kt becoming southeast 10 to 20 kt,
then increasing to 15 to 25 kt late. waves 1 to 2 ft building to
2 to 4 ft. 
.friday...southeast winds 15 to 25 kt increasing to 30 kt. waves
3 to 5 ft building to 4 to 7 ft occasionally to 9 ft.
.friday night...southeast gales to 35 kt becoming south. chance
of showers and thunderstorms in the evening, then showers with a
chance of thunderstorms overnight. waves 6 to 9 ft occasionally
to 12 ft. 
.saturday...south gales to 40 kt. waves 8 to 11 ft occasionally 
to 14 ft. 
.saturday night...southwest winds to 30 kt becoming west 10 to
20 kt. chance of rain showers. waves 7 to 10 ft occasionally to
13 ft subsiding to 4 to 7 ft occasionally to 9 ft. 
.sunday...west winds 15 to 25 kt. chance of rain and snow
showers. waves 4 to 7 ft occasionally to 9 ft. 
.monday...southwest winds 10 to 20 kt becoming south. waves 3 to
5 ft.  

$$

fzus63 kmkx 130826
glflm 
expires:202503131530;;062207

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
326 am cdt thu mar 13 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 over southeast ontario today 
will combine with broad low pressure around 29.2 inches in the 
northern rocky mountains to bring light east to southeast winds. 

strong low pressure will deepen to 28.9 inches in the central 
great plains tonight and friday, quickly progressing into the 
upper mississippi valley later friday night. southeast winds will
increase tonight and become gusty on friday and friday night,
becoming south saturday and southwest later saturday afternoon.

thunderstorms will develop move northeast across the lake later 
friday evening into the overnight hours, with rain showers 
continuing into saturday. a few stronger storms may occur friday
night as the storms move through.

southeast to south gusts may reach gale force later friday night 
through saturday over the southern half of the open waters, 
becoming southwest later saturday. trends will be monitored for 
potential gale watches or warnings in the coming forecasts friday 
night into saturday, especially for the southern half of the lake.
 
gusty winds will shift west to northwest later saturday night 
into sunday morning, as a cold front crosses the open waters.
winds will remain gusty into sunday night.


lmz261-362-364-366-563-565-567-868-131530-
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-
326 am cdt thu mar 13 2025

sheboygan wi to pentwater mi north...

.today...southwest winds 5 to 10 kt becoming south. waves 1 ft or
less. 
.tonight...southeast winds 5 to 10 kt increasing to 15 to 25 kt.
waves 1 to 2 ft building to 2 to 4 ft. 
.friday...southeast winds 15 to 25 kt increasing to 30 kt. waves
4 to 6 ft occasionally to 8 ft. 
.friday night...southeast winds to 30 kt. chance of rain showers
in the evening, then rain showers overnight. waves 6 to 9 ft
occasionally to 12 ft. 
.saturday...south winds to 30 kt. chance of rain showers. waves
8 to 11 ft occasionally to 14 ft. 
.saturday night...southwest winds to 30 kt diminishing to 15 to
25 kt. chance of rain showers. waves 7 to 10 ft occasionally to
13 ft subsiding to 4 to 7 ft occasionally to 9 ft. 
.sunday...west winds 15 to 25 kt. chance of snow and rain
showers. waves 4 to 6 ft occasionally to 8 ft. 
.monday...southwest winds 10 to 20 kt becoming south. waves 2 to
4 ft.  

$$

fzus63 kmqt 130740
glfls 
expires:202503131545;;059283

open lake forecast for lake superior
national weather service marquette mi
340 am edt thu mar 13 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...weak troughing of 29.8 inches over lake superior early
this morning becomes weak ridging of 29.9 inches as a low pressure
system begins developing off of the rocky mountains today. the 
low bottoms out to 28.8 inches over the central plains friday 
afternoon before lifting through western lake superior at 28.9 
inches saturday. remnant troughing over the lake weakens from 29.3
inches to around 29.7 inches sunday behind the low before ridging
of 30.0 inches moves over late sunday night through monday. 


lsz264-131545-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
340 am edt thu mar 13 2025

.early this morning...west winds 5 to 15 knots. waves calm to
2 feet. 
.today...west winds 5 to 15 knots veering northwest in the
afternoon, then veering east late. waves calm to 2 feet. 
.tonight...east winds 5 to 15 knots becoming southeast 10 to
20 knots after midnight. a slight chance of rain showers after
midnight. waves building to 3 to 5 feet occasionally to 7 feet. 
.friday...southeast winds 10 to 20 knots. a chance of rain
showers and a slight chance of thunderstorms. waves building to
3 to 6 feet occasionally to 8 feet. 
.friday night...southeast winds 10 to 20 knots increasing to
15 to 25 knots after midnight. a chance of rain showers. a slight
chance of thunderstorms after midnight. waves building to 5 to
8 feet occasionally to 10 feet. 
.saturday...southeast winds 15 to 25 knots diminishing to 10 to
20 knots by mid afternoon. rain showers likely. waves subsiding
to 4 to 7 feet occasionally to 9 feet. 
.saturday night...southwest winds 15 to 25 knots becoming west
20 to 30 knots after midnight. a chance of rain showers. waves
subsiding to 3 to 6 feet occasionally to 8 feet, then building to
4 to 7 feet occasionally to 9 feet. 
.sunday...northwest gales to 35 knots becoming west 20 to
30 knots. waves building to 7 to 10 feet occasionally to 13 feet,
then subsiding to 3 to 5 feet occasionally to 7 feet. 
.monday...west winds 10 to 20 knots. waves subsiding to 2 to
4 feet. 

$$

fzus63 kmqt 130740
glfls 
expires:202503131545;;059284

open lake forecast for lake superior
national weather service marquette mi
340 am edt thu mar 13 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...weak troughing of 29.8 inches over lake superior early
this morning becomes weak ridging of 29.9 inches as a low pressure
system begins developing off of the rocky mountains today. the 
low bottoms out to 28.8 inches over the central plains friday 
afternoon before lifting through western lake superior at 28.9 
inches saturday. remnant troughing over the lake weakens from 29.3
inches to around 29.7 inches sunday behind the low before ridging
of 30.0 inches moves over late sunday night through monday. 


lsz265-131545-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
340 am edt thu mar 13 2025

.early this morning...west winds 5 to 15 knots. waves calm to
2 feet. 
.today...west winds 5 to 15 knots backing east late. waves calm
to 2 feet. 
.tonight...southeast winds 10 to 20 knots. waves building to 2 to
4 feet. 
.friday...southeast winds 10 to 20 knots increasing to 15 to
25 knots in the afternoon. a slight chance of showers and
thunderstorms. waves subsiding to 1 to 3 feet, then building to
2 to 4 feet. 
.friday night...southeast winds 15 to 25 knots. a chance of rain
showers and a slight chance of thunderstorms after midnight.
waves building to 3 to 6 feet occasionally to 8 feet. 
.saturday...southeast winds 15 to 25 knots. a chance of rain
showers through early afternoon, then rain showers likely by mid
afternoon. waves subsiding to 3 to 5 feet occasionally to 7 feet.
.saturday night...south winds 15 to 25 knots becoming west 20 to
30 knots after midnight. waves subsiding to 2 to 4 feet, then
building to 3 to 5 feet occasionally to 7 feet. 
.sunday...northwest gales to 35 knots becoming west 20 to
30 knots. waves building to 5 to 8 feet occasionally to 10 feet,
then subsiding to 2 to 4 feet. 
.monday...southwest winds 15 to 25 knots diminishing to 10 to
20 knots. waves subsiding to calm to 2 feet. 

$$

fzus63 kmqt 130740
glfls 
expires:202503131545;;059285

open lake forecast for lake superior
national weather service marquette mi
340 am edt thu mar 13 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...weak troughing of 29.8 inches over lake superior early
this morning becomes weak ridging of 29.9 inches as a low pressure
system begins developing off of the rocky mountains today. the 
low bottoms out to 28.8 inches over the central plains friday 
afternoon before lifting through western lake superior at 28.9 
inches saturday. remnant troughing over the lake weakens from 29.3
inches to around 29.7 inches sunday behind the low before ridging
of 30.0 inches moves over late sunday night through monday. 


lsz266-131545-
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-
340 am edt thu mar 13 2025

.early this morning...west winds 5 to 15 knots. waves 1 to 3 feet
subsiding to calm to 2 feet. 
.today...west winds 5 to 15 knots veering northwest in the
afternoon, then veering east late. waves calm to 2 feet. 
.tonight...southeast winds 10 to 20 knots increasing to 15 to
25 knots late. waves building to 3 to 5 feet occasionally to
7 feet. 
.friday...southeast winds 15 to 25 knots. a slight chance of rain
showers. waves building to 3 to 6 feet occasionally to 8 feet. 
.friday night...southeast winds 15 to 25 knots increasing to
20 to 30 knots after midnight. a chance of rain showers and a
slight chance of thunderstorms after midnight. waves building to
5 to 8 feet occasionally to 10 feet. 
.saturday...southeast winds 20 to 30 knots diminishing to 15 to
25 knots by mid afternoon. a chance of rain showers. waves
subsiding to 4 to 7 feet occasionally to 9 feet. 
.saturday night...south winds 15 to 25 knots veering west after
midnight. waves subsiding to 3 to 6 feet occasionally to 8 feet,
then building to 4 to 7 feet occasionally to 9 feet. 
.sunday...northwest gales to 40 knots. waves building to 10 to
14 feet occasionally to 18 feet, then subsiding to 5 to 8 feet
occasionally to 10 feet. 
.monday...southwest winds 15 to 25 knots diminishing to 10 to
20 knots. waves subsiding to 2 to 4 feet. 

$$

fzus63 kmqt 130740
glfls 
expires:202503131545;;059286

open lake forecast for lake superior
national weather service marquette mi
340 am edt thu mar 13 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...weak troughing of 29.8 inches over lake superior early
this morning becomes weak ridging of 29.9 inches as a low pressure
system begins developing off of the rocky mountains today. the 
low bottoms out to 28.8 inches over the central plains friday 
afternoon before lifting through western lake superior at 28.9 
inches saturday. remnant troughing over the lake weakens from 29.3
inches to around 29.7 inches sunday behind the low before ridging
of 30.0 inches moves over late sunday night through monday. 


lsz267-131545-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
340 am edt thu mar 13 2025

.early this morning...southwest winds 10 to 20 knots. waves 1 to
3 feet subsiding to calm to 2 feet. 
.today...southwest winds 5 to 15 knots veering west in the
afternoon, then backing southwest late. waves calm to 2 feet. 
.tonight...southeast winds 10 to 20 knots increasing to 15 to
25 knots late. waves building to 2 to 4 feet. 
.friday...southeast winds 15 to 25 knots. waves building to 3 to
6 feet occasionally to 8 feet. 
.friday night...southeast winds 20 to 30 knots. a chance of rain
showers and a slight chance of thunderstorms after midnight.
waves building to 4 to 7 feet occasionally to 9 feet. 
.saturday...southeast winds 20 to 30 knots diminishing to 15 to
25 knots by mid afternoon. rain showers likely. waves subsiding
to 3 to 5 feet occasionally to 7 feet. 
.saturday night...south winds 15 to 25 knots veering southwest
after midnight. a chance of rain showers. waves building to 3 to
6 feet occasionally to 8 feet, then subsiding to 2 to 4 feet. 
.sunday...northwest gales to 40 knots. a chance of snow showers.
waves building to 10 to 14 feet occasionally to 18 feet, then
subsiding to 5 to 8 feet occasionally to 10 feet. 
.monday...southwest winds 15 to 25 knots diminishing to 10 to
20 knots. waves subsiding to 1 to 3 feet. 

$$

fzus63 kmqt 130740
glfls 
expires:202503131545;;059281

open lake forecast for lake superior
national weather service marquette mi
340 am edt thu mar 13 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...weak troughing of 29.8 inches over lake superior early
this morning becomes weak ridging of 29.9 inches as a low pressure
system begins developing off of the rocky mountains today. the 
low bottoms out to 28.8 inches over the central plains friday 
afternoon before lifting through western lake superior at 28.9 
inches saturday. remnant troughing over the lake weakens from 29.3
inches to around 29.7 inches sunday behind the low before ridging
of 30.0 inches moves over late sunday night through monday. 


lsz162-131545-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
340 am edt thu mar 13 2025 /240 am cdt thu mar 13 2025/

.early this morning...west winds 5 to 15 knots. waves calm to
2 feet. 
.today...west winds 5 to 15 knots backing east in the afternoon,
then increasing to 10 to 20 knots late. waves building to 2 to
4 feet. 
.tonight...east winds 10 to 20 knots. waves 2 to 4 feet. 
.friday...east winds 10 to 20 knots becoming northeast 15 to
25 knots late. a chance of rain showers and a slight chance of
thunderstorms. waves subsiding to 1 to 3 feet, then building to
2 to 4 feet. 
.friday night...northeast winds 15 to 25 knots. a chance of rain
showers through midnight. a slight chance of thunderstorms. rain
showers likely after midnight. waves building to 3 to 6 feet
occasionally to 8 feet. 
.saturday...east winds 10 to 20 knots backing northeast by mid
afternoon. rain showers. waves subsiding to 1 to 3 feet. 
.saturday night...west winds 20 to 30 knots becoming northwest
gales to 35 knots after midnight. a chance of rain showers,
possibly mixed with snow. waves building to 3 to 6 feet
occasionally to 8 feet. 
.sunday...northwest gales to 35 knots becoming west 15 to
25 knots. waves subsiding to 1 to 3 feet. 
.monday...west winds 10 to 20 knots veering northeast. waves
subsiding to calm to 2 feet. 

$$

fzus63 kmqt 130740
glfls 
expires:202503131545;;059282

open lake forecast for lake superior
national weather service marquette mi
340 am edt thu mar 13 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...weak troughing of 29.8 inches over lake superior early
this morning becomes weak ridging of 29.9 inches as a low pressure
system begins developing off of the rocky mountains today. the 
low bottoms out to 28.8 inches over the central plains friday 
afternoon before lifting through western lake superior at 28.9 
inches saturday. remnant troughing over the lake weakens from 29.3
inches to around 29.7 inches sunday behind the low before ridging
of 30.0 inches moves over late sunday night through monday. 


lsz263-131545-
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-
340 am edt thu mar 13 2025

.early this morning...west winds 5 to 15 knots. waves calm to
2 feet. 
.today...west winds 5 to 15 knots becoming northeast less than
10 knots in the afternoon, then becoming east 5 to 15 knots late.
waves building to 1 to 3 feet. 
.tonight...east winds 10 to 20 knots veering southeast after
midnight, then diminishing to 5 to 15 knots late. waves building
to 2 to 4 feet, then subsiding to 1 to 3 feet. 
.friday...southeast winds 10 to 20 knots backing east in the
afternoon. a chance of rain showers and a slight chance of
thunderstorms. waves subsiding to 1 to 3 feet, then building to
3 to 5 feet occasionally to 7 feet. 
.friday night...east winds 10 to 20 knots increasing to 15 to
25 knots after midnight. a chance of rain showers and a slight
chance of thunderstorms. waves building to 4 to 7 feet
occasionally to 9 feet. 
.saturday...southeast winds 15 to 25 knots becoming east 10 to
20 knots by mid afternoon. rain showers. waves subsiding to 3 to
6 feet occasionally to 8 feet. 
.saturday night...west winds 20 to 30 knots veering northwest
after midnight. a chance of rain showers, possibly mixed with
snow. waves subsiding to 2 to 4 feet, then building to 4 to
7 feet occasionally to 9 feet. 
.sunday...northwest gales to 35 knots becoming west 20 to
30 knots. waves building to 5 to 8 feet occasionally to 10 feet,
then subsiding to 3 to 5 feet occasionally to 7 feet. 
.monday...west winds 10 to 20 knots diminishing to 5 to 15 knots.
waves subsiding to 1 to 3 feet. 

$$