fzus63 kdtx 030757
glflh 
expires:202504031600;;665739

open lake forecast for lake huron
national weather service detroit/pontiac mi
357 am edt thu apr 3 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, 29.20 inches, over eastern lake 
superior this morning dragged a cold front across the great lakes 
with a short period of gales expected through the straits. high 
pressure building in on today but gusty westerly flow will remain 
through the day before decreasing overnight and friday. 


lhz361-031600-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
357 am edt thu apr 3 2025

...gale warning in effect through this afternoon...

.today...south winds 15 to 20 knots becoming west 20 to 25 knots
in the late morning and afternoon. gusts to 35 knot gales. waves
6 to 9 feet. waves occasionally around 12 feet. 
.tonight...west winds 15 to 20 knots with gusts to around
30 knots decreasing to 5 to 10 knots. waves 5 to 7 feet subsiding
to 1 to 3 feet. waves occasionally around 10 feet. 
.friday...northwest winds 5 to 10 knots until late afternoon
becoming light and variable. waves 2 feet or less. 
.friday night...light and variable winds becoming east 5 to
10 knots in the late evening and overnight. a chance of rain and
snow after midnight. waves 2 feet or less. 
.saturday...east winds 5 to 10 knots backing to the northeast
late in the morning...then becoming northwest 10 to 15 knots late
in the afternoon. a chance of rain. waves 1 to 3 feet. 
.sunday...northwest winds 10 to 15 knots. waves 2 to 4 feet. 
.monday...northwest winds 10 to 15 knots increasing to 15 to
20 knots. a chance of snow until afternoon. waves 3 to 5 feet. 


$$

fzus63 kdtx 030757
glflh 
expires:202504031600;;665740

open lake forecast for lake huron
national weather service detroit/pontiac mi
357 am edt thu apr 3 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, 29.20 inches, over eastern lake 
superior this morning dragged a cold front across the great lakes 
with a short period of gales expected through the straits. high 
pressure building in on today but gusty westerly flow will remain 
through the day before decreasing overnight and friday. 


lhz362-363-031600-
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-
357 am edt thu apr 3 2025

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


$$

fzus63 kdtx 030757
glflh 
expires:202504031600;;665741

open lake forecast for lake huron
national weather service detroit/pontiac mi
357 am edt thu apr 3 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, 29.20 inches, over eastern lake 
superior this morning dragged a cold front across the great lakes 
with a short period of gales expected through the straits. high 
pressure building in on today but gusty westerly flow will remain 
through the day before decreasing overnight and friday. 


lhz462>464-031600-
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-
357 am edt thu apr 3 2025

.today...south winds 15 to 20 knots becoming southwest 20 to
25 knots with gusts to around 30 knots in the late morning and
early afternoon...then becoming west 15 to 20 knots late in the
afternoon. waves 5 to 7 feet. waves occasionally around 10 feet. 
.tonight...west winds 10 to 15 knots becoming northwest 5 to
10 knots after midnight. waves 3 to 5 feet subsiding to 1 to
3 feet after midnight. 
.friday...northwest winds 5 to 10 knots veering to the north in
the late morning and afternoon. waves 2 feet or less. 
.friday night...northeast winds 5 to 10 knots becoming east 10 to
15 knots after midnight. a chance of rain in the evening...then
rain after midnight. waves 1 to 3 feet. 
.saturday...east winds 10 to 15 knots backing to the north late
in the morning...then increasing to 15 to 20 knots late in the
evening. rain likely. waves 2 to 4 feet. 
.sunday...northwest winds 15 to 20 knots becoming north 10 to
15 knots. waves 2 to 4 feet. 
.monday...west winds 10 to 15 knots becoming southwest 15 to
20 knots until early evening...then becoming northwest 20 to
25 knots in the late evening and early morning. a chance of snow.
waves 4 to 6 feet. waves occasionally around 8 feet. 


$$

fzus63 kmkx 030830
glflm 
expires:202504031530;;668409

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
330 am cdt thu apr 3 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 29.3 inches over lake superior will pull away to
the northeast today, while high pressure of 30.2 inches begins to
build in from the west. gusty west to southwest winds are expected
today as a result, especially this morning into early afternoon
when a gale warning is in effect. lighter winds are expected
friday under the high, as it strengthens to 30.4 inches. breezy
winds are expected at times over the weekend as low pressure and a
cold front swing through the region. 


lmz080-669-671-673-675-777-779-870-872-874-876-878-031530-
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-
330 am cdt thu apr 3 2025

sheboygan wi to pentwater mi south...

.today...southwest winds to 30 kt becoming west, then diminishing
to 10 to 20 kt late. waves 5 to 8 ft occasionally to 10 ft 
subsiding to 3 to 5 ft. 
.tonight...northwest winds 10 to 15 kt veering to northeast.
waves 2 to 4 ft subsiding to 1 ft or less. 
.friday...northeast winds 10 to 15 kt increasing to 10 to 20 kt.
chance of rain in the afternoon. waves 1 to 3 ft. 
.friday night...northeast winds 10 to 20 kt. rain. waves 2 to
4 ft. 
.saturday...north winds 10 to 20 kt. chance of rain. waves 4 to
6 ft occasionally to 8 ft. 
.saturday night...north winds 10 to 20 kt. waves 3 to 5 ft. 
.sunday...north winds 10 to 20 kt becoming northwest. waves 3 to
5 ft. 
.monday...northwest winds 15 to 25 kt becoming north. chance of
snow. waves 4 to 6 ft occasionally to 8 ft building to 5 to 8 ft
occasionally to 10 ft.  

$$

fzus63 kmkx 030830
glflm 
expires:202504031530;;668407

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
330 am cdt thu apr 3 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 29.3 inches over lake superior will pull away to
the northeast today, while high pressure of 30.2 inches begins to
build in from the west. gusty west to southwest winds are expected
today as a result, especially this morning into early afternoon
when a gale warning is in effect. lighter winds are expected
friday under the high, as it strengthens to 30.4 inches. breezy
winds are expected at times over the weekend as low pressure and a
cold front swing through the region. 


lmz261-362-364-366-563-565-031530-
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-
330 am cdt thu apr 3 2025

two rivers wi to manistee mi north...

...gale warning in effect until 2 pm cdt this afternoon...

.today...southwest gales to 35 kt becoming west to 30 kt. waves
7 to 10 ft occasionally to 13 ft subsiding to 5 to 8 ft
occasionally to 10 ft. 
.tonight...west winds 15 to 25 kt diminishing to 10 to 15 kt late
in the evening, then becoming northwest 5 to 10 kt overnight.
waves 3 to 5 ft subsiding to 1 to 3 ft. 
.friday...northeast winds 5 to 10 kt increasing to 10 to 15 kt.
waves 1 to 2 ft. 
.friday night...northeast winds 10 to 15 kt becoming east. chance
of rain overnight. waves 1 to 2 ft. 
.saturday...north winds 10 to 15 kt becoming northwest 10 to
20 kt. waves 1 to 3 ft. 
.saturday night...north winds 10 to 20 kt becoming northwest.
waves 1 to 3 ft. 
.sunday...northwest winds 10 to 20 kt becoming west. waves 1 to
3 ft. 
.monday...north winds 15 to 25 kt increasing to 30 kt. chance of
snow. waves 3 to 5 ft.  

$$

fzus63 kmkx 030830
glflm 
expires:202504031530;;668408

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
330 am cdt thu apr 3 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 29.3 inches over lake superior will pull away to
the northeast today, while high pressure of 30.2 inches begins to
build in from the west. gusty west to southwest winds are expected
today as a result, especially this morning into early afternoon
when a gale warning is in effect. lighter winds are expected
friday under the high, as it strengthens to 30.4 inches. breezy
winds are expected at times over the weekend as low pressure and a
cold front swing through the region. 


lmz567-868-031530-
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-
330 am cdt thu apr 3 2025

two rivers wi to manistee mi south to sheboygan wi to pentwater
mi...

.today...west winds to 30 kt becoming southwest 10 to 20 kt. 
waves 6 to 9 ft occasionally to 12 ft subsiding to 4 to 6 ft 
occasionally to 8 ft. 
.tonight...west winds 10 to 15 kt veering to north 5 to 10 kt.
waves 2 to 4 ft subsiding to 1 to 2 ft. 
.friday...northeast winds 5 to 10 kt becoming north 10 to 15 kt.
waves 1 to 2 ft. 
.friday night...northeast winds 10 to 15 kt. chance of rain.
waves 1 to 3 ft. 
.saturday...north winds 10 to 20 kt. waves 2 to 4 ft. 
.saturday night...north winds 10 to 15 kt. waves 1 to 3 ft. 
.sunday...northwest winds 10 to 20 kt. waves 1 to 3 ft. 
.monday...north winds 15 to 25 kt. chance of snow. waves 4 to
6 ft occasionally to 8 ft.  

$$

fzus63 kmqt 030738
glfls 
expires:202504031545;;664979

open lake forecast for lake superior
national weather service marquette mi
338 am edt thu apr 3 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 29.3 inch low over western lake superior this
morning will lift to near james bay this afternoon, weakening
slightly to 29.4 inches. 30.1 inch ridging builds over lake 
superior thursday night, then builds to 30.3 inches by friday 
morning. saturday, lake superior will be between a 30.4 inch high
over the central plains and a 29.8 inch low moving through the
lower great lakes. this low deepens to 29.3 inches over northern
quebec while the high over the plains weakens to 30.2 inches on
sunday. monday, a 30.3 inch high will settle from the canadian
prairie to the northern plains while a 29.6 inch low passes
towards the lower great lakes.


lsz265-031545-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
338 am edt thu apr 3 2025

...gale warning in effect from 8 am this morning to 2 pm edt this
afternoon...

.early this morning...southwest winds 20 to 30 knots. a slight
chance of rain showers. waves 4 to 7 feet occasionally to 9 feet
subsiding to 3 to 6 feet occasionally to 8 feet. 
.today...west gales to 35 knots veering northwest in the
afternoon, then becoming west 15 to 25 knots late. a slight
chance of rain and snow showers through early afternoon. waves
building to 5 to 8 feet occasionally to 10 feet, then subsiding
to 3 to 5 feet occasionally to 7 feet. 
.tonight...west winds 15 to 25 knots diminishing to 5 to
15 knots. waves subsiding to calm to 2 feet. 
.friday...west winds 5 to 15 knots backing east in the afternoon.
waves calm to 2 feet. 
.friday night...southeast winds 5 to 15 knots. waves calm to
2 feet. 
.saturday...northwest winds 10 to 20 knots. waves calm to 2 feet.
.saturday night...west winds 10 to 20 knots. waves calm to
2 feet. 
.sunday...northwest winds 15 to 25 knots veering north. a chance
of snow showers. waves building to 3 to 5 feet occasionally to
7 feet. 
.monday...north winds 15 to 25 knots backing northwest. waves
subsiding to 1 to 3 feet. 

$$

fzus63 kmqt 030738
glfls 
expires:202504031545;;664980

open lake forecast for lake superior
national weather service marquette mi
338 am edt thu apr 3 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 29.3 inch low over western lake superior this
morning will lift to near james bay this afternoon, weakening
slightly to 29.4 inches. 30.1 inch ridging builds over lake 
superior thursday night, then builds to 30.3 inches by friday 
morning. saturday, lake superior will be between a 30.4 inch high
over the central plains and a 29.8 inch low moving through the
lower great lakes. this low deepens to 29.3 inches over northern
quebec while the high over the plains weakens to 30.2 inches on
sunday. monday, a 30.3 inch high will settle from the canadian
prairie to the northern plains while a 29.6 inch low passes
towards the lower great lakes.


lsz266-031545-
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-
338 am edt thu apr 3 2025

...gale warning in effect from 8 am edt this morning through this
afternoon...

.early this morning...southwest winds 20 to 30 knots. patchy fog.
a slight chance of rain showers. waves 5 to 9 feet occasionally
to 11 feet. 
.today...west gales to 40 knots diminishing to 20 to 30 knots
late. a slight chance of rain and snow showers through early
afternoon. waves building to 10 to 14 feet occasionally to
18 feet, then subsiding to 7 to 10 feet occasionally to 13 feet. 
.tonight...west winds 15 to 25 knots becoming northwest 10 to
20 knots after midnight, then diminishing to 5 to 15 knots late.
waves subsiding to 1 to 3 feet. 
.friday...west winds 5 to 15 knots backing south in the
afternoon, then backing east late. waves subsiding to calm to
2 feet. 
.friday night...southeast winds 5 to 15 knots. waves calm to
2 feet. 
.saturday...northwest winds 5 to 15 knots increasing to 10 to
20 knots by mid afternoon. waves building to 2 to 4 feet. 
.saturday night...northwest winds 10 to 20 knots. waves subsiding
to 1 to 3 feet, then building to 2 to 4 feet. 
.sunday...northwest winds 15 to 25 knots veering north. a chance
of snow showers. waves building to 3 to 6 feet occasionally to
8 feet. 
.monday...north winds 15 to 25 knots. freezing spray. waves
building to 4 to 7 feet occasionally to 9 feet, then subsiding to
3 to 5 feet occasionally to 7 feet. 

$$

fzus63 kmqt 030738
glfls 
expires:202504031545;;664981

open lake forecast for lake superior
national weather service marquette mi
338 am edt thu apr 3 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 29.3 inch low over western lake superior this
morning will lift to near james bay this afternoon, weakening
slightly to 29.4 inches. 30.1 inch ridging builds over lake 
superior thursday night, then builds to 30.3 inches by friday 
morning. saturday, lake superior will be between a 30.4 inch high
over the central plains and a 29.8 inch low moving through the
lower great lakes. this low deepens to 29.3 inches over northern
quebec while the high over the plains weakens to 30.2 inches on
sunday. monday, a 30.3 inch high will settle from the canadian
prairie to the northern plains while a 29.6 inch low passes
towards the lower great lakes.


lsz267-031545-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
338 am edt thu apr 3 2025

...gale warning in effect from 8 am edt this morning through this
afternoon...

.early this morning...southwest winds 15 to 25 knots. patchy fog.
a slight chance of rain showers. waves 3 to 6 feet occasionally
to 8 feet. 
.today...southwest gales to 40 knots veering west in the
afternoon. a slight chance of rain and snow showers through early
afternoon. waves building to 10 to 14 feet occasionally to
18 feet, then subsiding to 8 to 11 feet occasionally to 14 feet. 
.tonight...west winds 15 to 25 knots becoming northwest 10 to
20 knots after midnight, then becoming north 5 to 15 knots late.
waves subsiding to 2 to 4 feet. 
.friday...north winds 5 to 15 knots veering south in the
afternoon, then backing east late. waves subsiding to calm to
2 feet. 
.friday night...east winds 5 to 15 knots veering southeast after
midnight. waves calm to 2 feet. 
.saturday...northwest winds 5 to 15 knots increasing to 10 to
20 knots by mid afternoon. waves building to 2 to 4 feet. 
.saturday night...northwest winds 15 to 25 knots diminishing to
10 to 20 knots after midnight. waves 2 to 4 feet. 
.sunday...northwest winds 15 to 25 knots veering north. waves
building to 3 to 6 feet occasionally to 8 feet. 
.monday...north winds 15 to 25 knots. waves building to 4 to
7 feet occasionally to 9 feet, then subsiding to 3 to 5 feet
occasionally to 7 feet. 

$$

fzus63 kmqt 030738
glfls 
expires:202504031545;;664976

open lake forecast for lake superior
national weather service marquette mi
338 am edt thu apr 3 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 29.3 inch low over western lake superior this
morning will lift to near james bay this afternoon, weakening
slightly to 29.4 inches. 30.1 inch ridging builds over lake 
superior thursday night, then builds to 30.3 inches by friday 
morning. saturday, lake superior will be between a 30.4 inch high
over the central plains and a 29.8 inch low moving through the
lower great lakes. this low deepens to 29.3 inches over northern
quebec while the high over the plains weakens to 30.2 inches on
sunday. monday, a 30.3 inch high will settle from the canadian
prairie to the northern plains while a 29.6 inch low passes
towards the lower great lakes.


lsz162-031545-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
338 am edt thu apr 3 2025 /238 am cdt thu apr 3 2025/

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

$$

fzus63 kmqt 030738
glfls 
expires:202504031545;;664977

open lake forecast for lake superior
national weather service marquette mi
338 am edt thu apr 3 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 29.3 inch low over western lake superior this
morning will lift to near james bay this afternoon, weakening
slightly to 29.4 inches. 30.1 inch ridging builds over lake 
superior thursday night, then builds to 30.3 inches by friday 
morning. saturday, lake superior will be between a 30.4 inch high
over the central plains and a 29.8 inch low moving through the
lower great lakes. this low deepens to 29.3 inches over northern
quebec while the high over the plains weakens to 30.2 inches on
sunday. monday, a 30.3 inch high will settle from the canadian
prairie to the northern plains while a 29.6 inch low passes
towards the lower great lakes.


lsz263-031545-
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-
338 am edt thu apr 3 2025

...gale warning in effect until 2 pm edt this afternoon...

.early this morning...west gales to 35 knots. patchy fog. a
chance of snow showers, possibly mixed with rain. waves 7 to
10 feet occasionally to 13 feet subsiding to 5 to 8 feet
occasionally to 10 feet. 
.today...west gales to 35 knots diminishing to 15 to 25 knots. a
slight chance of snow showers through early afternoon. waves
building to 6 to 9 feet occasionally to 11 feet, then subsiding
to 3 to 6 feet occasionally to 8 feet. 
.tonight...west winds 10 to 20 knots diminishing to 5 to 15 knots
after midnight, then veering northwest late. waves subsiding to
calm to 2 feet. 
.friday...west winds less than 10 knots backing south in the
afternoon, then becoming east 5 to 15 knots late. waves calm to
2 feet. 
.friday night...east winds 5 to 15 knots backing north after
midnight. a slight chance of rain and snow showers after
midnight. waves calm to 2 feet. 
.saturday...northwest winds 10 to 20 knots backing west by mid
afternoon. waves building to 1 to 3 feet. 
.saturday night...west winds 10 to 20 knots veering northwest
after midnight. waves building to 2 to 4 feet, then subsiding to
1 to 3 feet. 
.sunday...northwest winds 10 to 20 knots becoming north 15 to
25 knots. waves building to 3 to 6 feet occasionally to 8 feet. 
.monday...north winds 10 to 20 knots. waves subsiding to 1 to
3 feet. 

$$

fzus63 kmqt 030738
glfls 
expires:202504031545;;664978

open lake forecast for lake superior
national weather service marquette mi
338 am edt thu apr 3 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 29.3 inch low over western lake superior this
morning will lift to near james bay this afternoon, weakening
slightly to 29.4 inches. 30.1 inch ridging builds over lake 
superior thursday night, then builds to 30.3 inches by friday 
morning. saturday, lake superior will be between a 30.4 inch high
over the central plains and a 29.8 inch low moving through the
lower great lakes. this low deepens to 29.3 inches over northern
quebec while the high over the plains weakens to 30.2 inches on
sunday. monday, a 30.3 inch high will settle from the canadian
prairie to the northern plains while a 29.6 inch low passes
towards the lower great lakes.


lsz264-031545-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
338 am edt thu apr 3 2025

...gale warning in effect until 2 pm edt this afternoon...

.early this morning...southwest winds 20 to 30 knots with a few
gale force gusts to 35 knots possible. patchy fog. a chance of 
rain and snow showers. waves 6 to 10 feet occasionally to 13 feet.
.today...northwest gales to 35 knots becoming west 15 to 25 knots
late. patchy fog through early afternoon. a chance of snow
showers, possibly mixed with rain through early afternoon. waves
building to 7 to 10 feet occasionally to 13 feet, then subsiding
to 4 to 7 feet occasionally to 9 feet. 
.tonight...west winds 10 to 20 knots diminishing to 5 to 15 knots
after midnight, then veering northwest late. waves subsiding to
calm to 2 feet. 
.friday...west winds less than 10 knots backing southwest in the
afternoon, then backing southeast late. waves calm to 2 feet. 
.friday night...southeast winds 5 to 15 knots veering northwest
after midnight. waves calm to 2 feet. 
.saturday...northwest winds 5 to 15 knots becoming west 10 to
20 knots by mid afternoon. waves building to 1 to 3 feet. 
.saturday night...northwest winds 10 to 20 knots. waves building
to 2 to 4 feet. 
.sunday...northwest winds 10 to 20 knots becoming north 15 to
25 knots. waves building to 4 to 7 feet occasionally to 9 feet. 
.monday...north winds 10 to 20 knots. freezing spray. waves
subsiding to 2 to 4 feet. 

$$