fzus63 kdtx 010753
glflh 
expires:202604011600;;635482

open lake forecast for lake huron
national weather service detroit/pontiac mi
353 am edt wed apr 1 2026

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 moves across ontario through the
afternoon which will reinforce northeast flow today. low
pressure, 29.40 inches, will lift from the central plains in the
western great lakes tomorrow, bringing another round of
precipitation to the region. this low will lift northeast of the
great lakes friday.


lhz361-011600-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
353 am edt wed apr 1 2026

.today...north winds 10 to 15 knots becoming northeast 5 to
10 knots in the afternoon. waves 2 feet or less. 
.tonight...northeast winds 5 to 10 knots becoming east 20 to
25 knots. waves 2 feet or less building to 5 to 7 feet. waves
occasionally around 10 feet. 
.thursday...east winds 20 to 25 knots increasing to 30 knots in
the late morning and afternoon. freezing rain in the morning...
then freezing rain...rain and sleet in the afternoon.
precipitation may be heavy at times. waves 8 to 12 feet. waves
occasionally around 15 feet. 
.thursday night...east winds to 30 knots becoming southeast 15 to
20 knots in the late evening and overnight. rain and a chance of
thunderstorms. waves 8 to 12 feet. waves occasionally around
15 feet. 
.friday...southwest winds 15 to 20 knots veering to the west late
in the morning...then decreasing to 10 to 15 knots late in the
afternoon becoming northeast 15 to 20 knots late in the evening.
a chance of rain. waves 4 to 6 feet. waves occasionally around
8 feet. 
.saturday...east winds 20 to 25 knots decreasing to 15 to
20 knots until early evening...then becoming southwest 20 to
25 knots by midnight. rain early in the morning...then a chance
of rain . waves 6 to 9 feet. waves occasionally around 12 feet. 
.sunday...west winds to 30 knots becoming northwest 20 to
25 knots by midnight. a chance of rain early in the morning.
waves 6 to 9 feet. waves occasionally around 12 feet. 

wave heights are for ice free areas.

$$

fzus63 kdtx 010753
glflh 
expires:202604011600;;635483

open lake forecast for lake huron
national weather service detroit/pontiac mi
353 am edt wed apr 1 2026

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 moves across ontario through the
afternoon which will reinforce northeast flow today. low
pressure, 29.40 inches, will lift from the central plains in the
western great lakes tomorrow, bringing another round of
precipitation to the region. this low will lift northeast of the
great lakes friday.


lhz362-363-011600-
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-
353 am edt wed apr 1 2026

.today...north winds 15 to 20 knots becoming northeast 10 to
15 knots in the late morning and afternoon. waves 3 to 5 feet. 
.tonight...northeast winds 15 to 20 knots becoming east 20 to
25 knots early in the morning. waves 5 to 7 feet. waves
occasionally around 10 feet. 
.thursday...east winds 20 to 25 knots with gusts to around
30 knots. rain...freezing rain and sleet in the morning...then
rain and freezing rain in the afternoon. waves 8 to 12 feet.
waves occasionally around 15 feet. 
.thursday night...southeast winds 15 to 20 knots with gusts to
around 30 knots becoming south 20 to 25 knots after midnight.
rain and a chance of thunderstorms in the evening...then a chance
of rain and thunderstorms after midnight. waves 8 to 12 feet.
waves occasionally around 15 feet. 
.friday...southwest winds 15 to 20 knots becoming west 10 to
15 knots late in the afternoon...then veering to the north late
in the evening. a chance of rain. waves 5 to 7 feet. waves
occasionally around 10 feet. 
.saturday...east winds 15 to 20 knots becoming southwest 20 to
25 knots by midnight. a chance of rain early in the morning...
then rain until early evening. a chance of rain by midnight.
waves 6 to 9 feet. waves occasionally around 12 feet. 
.sunday...west winds 20 to 25 knots increasing to 30 knots until
early evening...then becoming northwest 20 to 25 knots by
midnight. a chance of rain early in the morning. waves 10 to
14 feet. waves occasionally around 18 feet. 


$$

fzus63 kdtx 010753
glflh 
expires:202604011600;;635484

open lake forecast for lake huron
national weather service detroit/pontiac mi
353 am edt wed apr 1 2026

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 moves across ontario through the
afternoon which will reinforce northeast flow today. low
pressure, 29.40 inches, will lift from the central plains in the
western great lakes tomorrow, bringing another round of
precipitation to the region. this low will lift northeast of the
great lakes friday.


lhz462>464-011600-
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-
353 am edt wed apr 1 2026

.today...north winds 10 to 15 knots increasing to 15 to 20 knots
in the late morning and afternoon. waves 3 to 5 feet. 
.tonight...north winds 15 to 20 knots becoming northeast 10 to
15 knots after midnight. waves 4 to 6 feet. 
.thursday...east winds 15 to 20 knots decreasing to 10 to
15 knots in the late morning and afternoon. rain in the morning...
then a chance of rain in the afternoon. waves 4 to 6 feet. waves
occasionally around 8 feet. 
.thursday night...southeast winds 15 to 20 knots becoming south
20 to 25 knots with gusts to around 30 knots in the late evening
and overnight. rain. waves 6 to 9 feet. waves occasionally around
12 feet. 
.friday...southwest winds 15 to 20 knots becoming west 10 to
15 knots late in the afternoon...then veering to the northeast
late in the evening. rain likely...then a chance of rain late in
the evening. waves 4 to 6 feet subsiding to 2 to 4 feet late in
the afternoon. waves occasionally around 8 feet. 
.saturday...east winds 10 to 15 knots becoming south 15 to
20 knots until early evening...then veering to the southwest by
midnight. rain likely early in the morning. rain until early
evening...then a chance of rain by midnight. waves 5 to 7 feet.
waves occasionally around 10 feet. 
.sunday...west winds 20 to 25 knots veering to the northwest by
midnight. a chance of rain early in the morning. waves 6 to
9 feet. waves occasionally around 12 feet. 


$$

fzus63 kmkx 010829
glflm 
expires:202604011515;;637534

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
329 am cdt wed apr 1 2026

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...

brisk north to northeast winds are expected today as high 
pressure around 30.7 inches builds over ontario. breezy easterly 
winds are then expected tonight into thursday between the high 
east of james bay in canada, and low pressure of 29.4 inches 
lifting from the central plains into wisconsin. gusts appear more 
likely to reach gale force over far northern lake michigan on 
thursday and thus a gale watch continues for thursday morning 
through most of the afternoon. 

the breezy easterly winds will shift southerly from south to 
north across the lake thursday afternoon into the evening with the
passage of a warm front, then followed by the cold front with 
winds shifting westerly late thursday night. precipitation is 
expected wednesday night through thursday with a chance for some 
freezing rain toward far northern parts of the lake, particularly
thursday morning. then expect some storm chances primarily over 
the southern half of the lake thursday afternoon and evening as 
the 29.5 inch low pushes through the northern lake thursday night.


lmz080-669-671-673-675-777-779-870-872-874-876-878-011515-
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-
329 am cdt wed apr 1 2026

sheboygan wi to pentwater mi south...

.today...northeast winds 15 to 25 kt. slight chance of rain
showers this morning. waves 5 to 8 ft occasionally to 10 ft. 
.tonight...northeast winds 15 to 25 kt becoming east to 30 kt.
slight chance of rain showers in the evening, then chance of rain
showers and slight chance of thunderstorms overnight. waves 6 to
9 ft occasionally to 12 ft. 
.thursday...southeast winds to 30 kt becoming south. rain showers
in the morning, then rain showers with a chance of thunderstorms 
in the afternoon. waves 7 to 10 ft occasionally to 13 ft. 
.thursday night...south winds to 30 kt becoming southwest. rain 
showers with a chance of thunderstorms in the evening, then chance
of thunderstorms overnight. waves 8 to 12 ft occasionally to 16 
ft. 
.friday...west winds 10 to 20 kt veering to northeast 10 to
15 kt. waves 5 to 8 ft occasionally to 10 ft subsiding to 2 to
4 ft. 
.friday night...northeast winds 15 to 25 kt becoming east 10 to
20 kt. rain showers with a chance of thunderstorms. waves 2 to
4 ft building to 3 to 5 ft. 
.saturday...south winds 15 to 25 kt becoming west. chance of rain
showers. waves 4 to 7 ft occasionally to 9 ft. 
.sunday...northwest winds to 30 kt. waves 8 to 12 ft occasionally
to 16 ft.  

$$

fzus63 kmkx 010829
glflm 
expires:202604011515;;637532

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
329 am cdt wed apr 1 2026

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...

brisk north to northeast winds are expected today as high 
pressure around 30.7 inches builds over ontario. breezy easterly 
winds are then expected tonight into thursday between the high 
east of james bay in canada, and low pressure of 29.4 inches 
lifting from the central plains into wisconsin. gusts appear more 
likely to reach gale force over far northern lake michigan on 
thursday and thus a gale watch continues for thursday morning 
through most of the afternoon. 

the breezy easterly winds will shift southerly from south to 
north across the lake thursday afternoon into the evening with the
passage of a warm front, then followed by the cold front with 
winds shifting westerly late thursday night. precipitation is 
expected wednesday night through thursday with a chance for some 
freezing rain toward far northern parts of the lake, particularly
thursday morning. then expect some storm chances primarily over 
the southern half of the lake thursday afternoon and evening as 
the 29.5 inch low pushes through the northern lake thursday night.


lmz261-362-364-563-011515-
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 rock island passage to sturgeon bay wi-
329 am cdt wed apr 1 2026

sturgeon bay wi to point betsie mi north...

...gale watch in effect from thursday morning through thursday
afternoon...

.today...northeast winds 15 to 25 kt. waves 4 to 6 ft
occasionally to 8 ft. 
.tonight...east winds 15 to 25 kt increasing to 30 kt. slight
chance of snow showers in the evening, then chance of light
freezing rain and slight chance of snow showers overnight. waves
5 to 8 ft occasionally to 10 ft. 
.thursday...east gales to 35 kt. rain showers, freezing rain,
light sleet and snow showers in the morning, then rain showers
and freezing rain in the afternoon. waves 7 to 10 ft occasionally
to 13 ft. 
.thursday night...southeast winds to 30 kt becoming southwest. 
rain showers, chance of thunderstorms and freezing rain in the 
evening, then chance of rain showers and thunderstorms overnight. 
waves 8 to 11 ft occasionally to 14 ft. 
.friday...west winds to 30 kt becoming northwest 10 to 20 kt in
the afternoon. waves 6 to 9 ft occasionally to 12 ft subsiding to
4 to 6 ft occasionally to 8 ft. 
.friday night...northeast winds 15 to 25 kt becoming east. chance
of rain showers and freezing rain likely. waves 2 to 4 ft
building to 4 to 6 ft occasionally to 8 ft. 
.saturday...east winds to 30 kt. chance of rain showers. waves
4 to 7 ft occasionally to 9 ft. 
.sunday...northwest gales to 35 kt diminishing to 30 kt. waves
7 to 10 ft occasionally to 13 ft.  

$$

fzus63 kmkx 010829
glflm 
expires:202604011515;;637533

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
329 am cdt wed apr 1 2026

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...

brisk north to northeast winds are expected today as high 
pressure around 30.7 inches builds over ontario. breezy easterly 
winds are then expected tonight into thursday between the high 
east of james bay in canada, and low pressure of 29.4 inches 
lifting from the central plains into wisconsin. gusts appear more 
likely to reach gale force over far northern lake michigan on 
thursday and thus a gale watch continues for thursday morning 
through most of the afternoon. 

the breezy easterly winds will shift southerly from south to 
north across the lake thursday afternoon into the evening with the
passage of a warm front, then followed by the cold front with 
winds shifting westerly late thursday night. precipitation is 
expected wednesday night through thursday with a chance for some 
freezing rain toward far northern parts of the lake, particularly
thursday morning. then expect some storm chances primarily over 
the southern half of the lake thursday afternoon and evening as 
the 29.5 inch low pushes through the northern lake thursday night.


lmz366-565-567-868-011515-
lake michigan from point betsie to manistee mi 5 nm offshore to
mid lake-
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-
329 am cdt wed apr 1 2026

sturgeon bay wi to point betsie mi south to sheboygan wi to
pentwater mi...

.today...northeast winds 15 to 25 kt. waves 4 to 7 ft
occasionally to 9 ft. 
.tonight...northeast winds 15 to 25 kt becoming east to 30 kt.
chance of rain showers overnight. waves 5 to 8 ft occasionally to
10 ft. 
.thursday...east winds to 30 kt becoming south gales to 35 kt.
rain showers. waves 7 to 10 ft occasionally to 13 ft. 
.thursday night...south winds to 30 kt becoming southwest. rain 
showers with a chance of thunderstorms. waves 8 to 12 ft 
occasionally to 16 ft. 
.friday...west winds 15 to 25 kt veering to north 10 to 15 kt in
the afternoon. waves 6 to 9 ft occasionally to 12 ft subsiding to
3 to 5 ft. 
.friday night...northeast winds 15 to 25 kt. rain showers. waves
3 to 5 ft. 
.saturday...east winds 15 to 25 kt veering to west. chance of
rain showers. waves 4 to 6 ft occasionally to 8 ft building to
4 to 7 ft occasionally to 9 ft. 
.sunday...northwest winds to 30 kt. waves 8 to 11 ft occasionally
to 14 ft.  

$$

fzus63 kmqt 010801
glfls 
expires:202604012000;;635772

open lake forecast for lake superior
national weather service marquette mi
400 am edt wed apr 1 2026

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...

30.4 inch ridging over northern lake superior this morning 
strengthens to 30.5 inches today as the parent high moves over james 
bay this afternoon. expect the ridging to give way to troughing this 
evening into thursday as a 29.4 inch low exits the colorado rockies 
and lifts through the central plains tonight. throughout the day 
thursday this low moves northeast, reaching southern wisconsin at 
29.5 inches thursday evening. the low shifts through northern lake 
michigan thursday night before arriving at the ontario/quebec line 
at 29.7 inches on friday. as this happens, another colorado low 
moves into kansas at 29.7 inches by friday. this low moves into 
eastern iowa by friday night as sprawling 30.7 inch high pressure 
resides over far northern quebec and hudson bay. the low moves 
through the upper great lakes at 29.6 inches on saturday and by 
sunday lake superior looks to be between the low now at 29.3 inches 
over northern quebec and a 30.3 inch high over the great plains.



lsz265-012000-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
400 am edt wed apr 1 2026

...gale warning in effect from thursday morning through late
thursday night...

.early this morning...northeast winds 10 to 20 knots. waves 2 to
4 feet. 
.today...northeast winds 10 to 20 knots veering east in the
afternoon. waves subsiding to 1 to 3 feet. 
.tonight...east winds 15 to 25 knots increasing to 20 to 30 knots
late. a slight chance of snow. waves building to 4 to 7 feet
occasionally to 9 feet. 
.thursday...east winds 20 to 30 knots increasing to gales to
35 knots in the afternoon. freezing spray through early
afternoon. snow likely, possibly mixed with sleet through early
afternoon, then sleet, possibly mixed with snow, rain and
freezing rain by mid afternoon. waves building to 10 to 14 feet
occasionally to 18 feet. 
.thursday night...east winds 20 to 30 knots backing north after
midnight. rain, possibly mixed with freezing rain and sleet
through midnight. a chance of snow. a chance of rain, possibly
mixed with freezing rain after midnight. waves subsiding to 5 to
8 feet occasionally to 10 feet. 
.friday...north winds 20 to 30 knots diminishing to 15 to
25 knots by mid afternoon. waves subsiding to 3 to 5 feet
occasionally to 7 feet. 
.friday night...east winds 15 to 25 knots increasing to 20 to
30 knots after midnight. a chance of rain, possibly mixed with
freezing rain and sleet through midnight. a chance of snow.
freezing rain, possibly mixed with rain after midnight. waves
building to 6 to 9 feet occasionally to 11 feet. 
.saturday...east winds 20 to 30 knots becoming north gales to
40 knots. freezing rain. rain likely. snow showers likely.
freezing spray. waves building to 7 to 10 feet occasionally to
13 feet, then subsiding to 5 to 8 feet occasionally to 10 feet. 
.sunday...northwest gales to 40 knots diminishing to 10 to
20 knots. freezing spray. waves building to 11 to 15 feet
occasionally to 19 feet, then subsiding to 1 to 3 feet. 

$$

fzus63 kmqt 010801
glfls 
expires:202604012000;;635773

open lake forecast for lake superior
national weather service marquette mi
400 am edt wed apr 1 2026

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...

30.4 inch ridging over northern lake superior this morning 
strengthens to 30.5 inches today as the parent high moves over james 
bay this afternoon. expect the ridging to give way to troughing this 
evening into thursday as a 29.4 inch low exits the colorado rockies 
and lifts through the central plains tonight. throughout the day 
thursday this low moves northeast, reaching southern wisconsin at 
29.5 inches thursday evening. the low shifts through northern lake 
michigan thursday night before arriving at the ontario/quebec line 
at 29.7 inches on friday. as this happens, another colorado low 
moves into kansas at 29.7 inches by friday. this low moves into 
eastern iowa by friday night as sprawling 30.7 inch high pressure 
resides over far northern quebec and hudson bay. the low moves 
through the upper great lakes at 29.6 inches on saturday and by 
sunday lake superior looks to be between the low now at 29.3 inches 
over northern quebec and a 30.3 inch high over the great plains.



lsz266-012000-
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-
400 am edt wed apr 1 2026

...gale warning in effect from thursday morning through late
thursday night...

.early this morning...northeast winds 10 to 20 knots. waves 2 to
4 feet. 
.today...northeast winds 10 to 20 knots veering east in the
afternoon. waves subsiding to 1 to 3 feet. 
.tonight...east winds 15 to 25 knots. a slight chance of snow
after midnight. waves building to 4 to 7 feet occasionally to
9 feet. 
.thursday...east winds 20 to 30 knots increasing to gales to
35 knots in the afternoon. a slight chance of freezing rain and
sleet through early afternoon. snow. sleet, possibly mixed with
freezing rain and rain by mid afternoon. waves building to 10 to
14 feet occasionally to 18 feet. 
.thursday night...east gales to 35 knots becoming northeast 20 to
30 knots after midnight. sleet through midnight. rain, possibly
mixed with freezing rain and snow. waves subsiding to 6 to 9 feet
occasionally to 11 feet. 
.friday...north winds 20 to 30 knots diminishing to 15 to
25 knots by mid afternoon. waves subsiding to 3 to 5 feet
occasionally to 7 feet. 
.friday night...east winds 15 to 25 knots increasing to gales to
35 knots after midnight. a chance of rain, possibly mixed with
snow and freezing rain through midnight, then snow, possibly
mixed with rain and freezing rain likely after midnight. waves
building to 6 to 9 feet occasionally to 11 feet. 
.saturday...east gales to 35 knots becoming north gales to
40 knots. freezing rain. rain likely. snow showers likely.
freezing spray. waves building to 7 to 10 feet occasionally to
13 feet, then subsiding to 5 to 8 feet occasionally to 10 feet. 
.sunday...northwest gales to 45 knots diminishing to 15 to
25 knots. freezing spray. waves building to 15 to 20 feet
occasionally to 25 feet, then subsiding to 3 to 6 feet
occasionally to 8 feet. 

$$

fzus63 kmqt 010801
glfls 
expires:202604012000;;635774

open lake forecast for lake superior
national weather service marquette mi
400 am edt wed apr 1 2026

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...

30.4 inch ridging over northern lake superior this morning 
strengthens to 30.5 inches today as the parent high moves over james 
bay this afternoon. expect the ridging to give way to troughing this 
evening into thursday as a 29.4 inch low exits the colorado rockies 
and lifts through the central plains tonight. throughout the day 
thursday this low moves northeast, reaching southern wisconsin at 
29.5 inches thursday evening. the low shifts through northern lake 
michigan thursday night before arriving at the ontario/quebec line 
at 29.7 inches on friday. as this happens, another colorado low 
moves into kansas at 29.7 inches by friday. this low moves into 
eastern iowa by friday night as sprawling 30.7 inch high pressure 
resides over far northern quebec and hudson bay. the low moves 
through the upper great lakes at 29.6 inches on saturday and by 
sunday lake superior looks to be between the low now at 29.3 inches 
over northern quebec and a 30.3 inch high over the great plains.



lsz267-012000-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
400 am edt wed apr 1 2026

...gale warning in effect from thursday morning through late
thursday night...

.early this morning...northeast winds 10 to 20 knots. waves 2 to
4 feet. 
.today...northeast winds 10 to 20 knots diminishing to 5 to
15 knots in the afternoon. waves subsiding to calm to 2 feet. 
.tonight...east winds 10 to 20 knots increasing to 20 to
30 knots. a slight chance of snow after midnight. waves building
to 3 to 5 feet occasionally to 7 feet. 
.thursday...east winds 20 to 30 knots increasing to gales to
35 knots in the afternoon. a slight chance of freezing rain and
sleet through early afternoon. snow likely. rain, possibly mixed
with sleet and freezing rain by mid afternoon. waves building to
6 to 9 feet occasionally to 11 feet. 
.thursday night...east winds 20 to 30 knots diminishing to 15 to
25 knots after midnight. rain. waves subsiding to 3 to 5 feet
occasionally to 7 feet. 
.friday...north winds 15 to 25 knots. waves subsiding to 2 to
4 feet. 
.friday night...northeast winds 15 to 25 knots becoming east
20 to 30 knots after midnight. a chance of rain through midnight,
then rain, possibly mixed with freezing rain after midnight.
waves building to 3 to 6 feet occasionally to 8 feet. 
.saturday...east winds 20 to 30 knots becoming northwest gales to
35 knots. rain. snow showers likely. waves building to 10 to
14 feet occasionally to 18 feet. 
.sunday...northwest gales to 40 knots becoming north 15 to
25 knots. waves building to 12 to 17 feet occasionally to
21 feet, then subsiding to 3 to 5 feet occasionally to 7 feet. 

$$

fzus63 kmqt 010801
glfls 
expires:202604012000;;635769

open lake forecast for lake superior
national weather service marquette mi
400 am edt wed apr 1 2026

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...

30.4 inch ridging over northern lake superior this morning 
strengthens to 30.5 inches today as the parent high moves over james 
bay this afternoon. expect the ridging to give way to troughing this 
evening into thursday as a 29.4 inch low exits the colorado rockies 
and lifts through the central plains tonight. throughout the day 
thursday this low moves northeast, reaching southern wisconsin at 
29.5 inches thursday evening. the low shifts through northern lake 
michigan thursday night before arriving at the ontario/quebec line 
at 29.7 inches on friday. as this happens, another colorado low 
moves into kansas at 29.7 inches by friday. this low moves into 
eastern iowa by friday night as sprawling 30.7 inch high pressure 
resides over far northern quebec and hudson bay. the low moves 
through the upper great lakes at 29.6 inches on saturday and by 
sunday lake superior looks to be between the low now at 29.3 inches 
over northern quebec and a 30.3 inch high over the great plains.



lsz162-012000-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
400 am edt wed apr 1 2026 /300 am cdt wed apr 1 2026/

...gale warning in effect from thursday morning through late
thursday night...

.early this morning...northeast winds 15 to 25 knots. waves 2 to
4 feet. 
.today...east winds 15 to 25 knots. waves building to 3 to 6 feet
occasionally to 8 feet. 
.tonight...east winds 20 to 30 knots. a slight chance of snow.
waves building to 5 to 8 feet occasionally to 10 feet. 
.thursday...east gales to 40 knots. snow. a slight chance of
sleet by mid afternoon. waves building to 11 to 15 feet
occasionally to 19 feet. 
.thursday night...northeast gales to 40 knots becoming north
gales to 35 knots after midnight. snow and sleet, possibly mixed
with rain through midnight, then a chance of snow, possibly mixed
with sleet after midnight. waves building to 12 to 17 feet
occasionally to 21 feet, then subsiding to 6 to 9 feet
occasionally to 11 feet. 
.friday...northeast winds 10 to 20 knots becoming east 15 to
25 knots by mid afternoon. a chance of snow, possibly mixed with
sleet. waves subsiding to 2 to 4 feet, then building to 3 to
5 feet occasionally to 7 feet. 
.friday night...east winds 20 to 30 knots becoming northeast
gales to 40 knots after midnight. a chance of snow through
midnight. snow after midnight. waves building to 8 to 11 feet
occasionally to 14 feet. 
.saturday...northeast gales to 40 knots becoming north gales to
35 knots. snow, then a chance of snow showers. waves building to
9 to 12 feet occasionally to 15 feet, then subsiding to 4 to
7 feet occasionally to 9 feet. 
.sunday...west winds 20 to 30 knots diminishing to 5 to 15 knots.
waves subsiding to calm to 2 feet. 

$$

fzus63 kmqt 010801
glfls 
expires:202604012000;;635770

open lake forecast for lake superior
national weather service marquette mi
400 am edt wed apr 1 2026

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...

30.4 inch ridging over northern lake superior this morning 
strengthens to 30.5 inches today as the parent high moves over james 
bay this afternoon. expect the ridging to give way to troughing this 
evening into thursday as a 29.4 inch low exits the colorado rockies 
and lifts through the central plains tonight. throughout the day 
thursday this low moves northeast, reaching southern wisconsin at 
29.5 inches thursday evening. the low shifts through northern lake 
michigan thursday night before arriving at the ontario/quebec line 
at 29.7 inches on friday. as this happens, another colorado low 
moves into kansas at 29.7 inches by friday. this low moves into 
eastern iowa by friday night as sprawling 30.7 inch high pressure 
resides over far northern quebec and hudson bay. the low moves 
through the upper great lakes at 29.6 inches on saturday and by 
sunday lake superior looks to be between the low now at 29.3 inches 
over northern quebec and a 30.3 inch high over the great plains.



lsz263-012000-
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-
400 am edt wed apr 1 2026

...gale warning in effect from thursday morning through late
thursday night...

.early this morning...northeast winds 5 to 15 knots. waves 2 to
4 feet. 
.today...northeast winds 5 to 15 knots becoming east 10 to
20 knots in the afternoon, then increasing to 15 to 25 knots
late. waves building to 3 to 5 feet occasionally to 7 feet. 
.tonight...east winds 15 to 25 knots. a slight chance of snow.
waves building to 4 to 7 feet occasionally to 9 feet. 
.thursday...east winds 20 to 30 knots increasing to gales to
40 knots in the afternoon. snow, possibly mixed with sleet. rain,
possibly mixed with freezing rain by mid afternoon. waves
building to 10 to 14 feet occasionally to 18 feet. 
.thursday night...northeast gales to 40 knots becoming north
gales to 35 knots after midnight. sleet, possibly mixed with
snow, rain and freezing rain through midnight, then a chance of
snow, possibly mixed with sleet, freezing rain and rain likely
after midnight. waves subsiding to 6 to 9 feet occasionally to
11 feet. 
.friday...north winds 15 to 25 knots veering northeast by mid
afternoon. waves subsiding to 3 to 5 feet occasionally to 7 feet.
.friday night...east winds 20 to 30 knots increasing to gales to
35 knots after midnight. a chance of snow, possibly mixed with
rain through midnight, then snow likely with pockets of rain
after midnight. waves building to 8 to 11 feet occasionally to
14 feet. 
.saturday...northeast gales to 35 knots backing north. snow,
possibly mixed with rain, then a chance of snow showers. waves
subsiding to 7 to 10 feet occasionally to 13 feet, then building
to 8 to 11 feet occasionally to 14 feet. 
.sunday...northwest gales to 35 knots becoming west 5 to
15 knots. waves subsiding to 1 to 3 feet. 

$$

fzus63 kmqt 010801
glfls 
expires:202604012000;;635771

open lake forecast for lake superior
national weather service marquette mi
400 am edt wed apr 1 2026

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...

30.4 inch ridging over northern lake superior this morning 
strengthens to 30.5 inches today as the parent high moves over james 
bay this afternoon. expect the ridging to give way to troughing this 
evening into thursday as a 29.4 inch low exits the colorado rockies 
and lifts through the central plains tonight. throughout the day 
thursday this low moves northeast, reaching southern wisconsin at 
29.5 inches thursday evening. the low shifts through northern lake 
michigan thursday night before arriving at the ontario/quebec line 
at 29.7 inches on friday. as this happens, another colorado low 
moves into kansas at 29.7 inches by friday. this low moves into 
eastern iowa by friday night as sprawling 30.7 inch high pressure 
resides over far northern quebec and hudson bay. the low moves 
through the upper great lakes at 29.6 inches on saturday and by 
sunday lake superior looks to be between the low now at 29.3 inches 
over northern quebec and a 30.3 inch high over the great plains.



lsz264-012000-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
400 am edt wed apr 1 2026

...gale warning in effect from thursday morning through late
thursday night...

.early this morning...northeast winds 5 to 15 knots. waves 2 to
4 feet. 
.today...northeast winds 5 to 15 knots veering east in the
afternoon. waves subsiding to 1 to 3 feet. 
.tonight...east winds 10 to 20 knots increasing to 15 to 25 knots
late. waves building to 4 to 7 feet occasionally to 9 feet. 
.thursday...east winds 20 to 30 knots increasing to gales to
35 knots in the afternoon. a chance of snow through early
afternoon, then snow, possibly mixed with freezing rain and sleet
by mid afternoon. waves building to 10 to 14 feet occasionally to
18 feet. 
.thursday night...east gales to 35 knots becoming northeast 20 to
30 knots after midnight. rain through midnight. snow and sleet,
possibly mixed with freezing rain. waves subsiding to 6 to 9 feet
occasionally to 11 feet. 
.friday...north winds 15 to 25 knots veering northeast by mid
afternoon. waves subsiding to 3 to 5 feet occasionally to 7 feet.
.friday night...east winds 15 to 25 knots increasing to gales to
35 knots after midnight. a chance of snow, possibly mixed with
rain through midnight. a chance of sleet. snow, possibly mixed
with freezing rain and rain likely after midnight. waves building
to 7 to 10 feet occasionally to 13 feet. 
.saturday...east gales to 35 knots becoming north gales to
40 knots. snow. rain showers likely. freezing spray. waves
subsiding to 6 to 9 feet occasionally to 11 feet, then building
to 10 to 14 feet occasionally to 18 feet. 
.sunday...northwest gales to 40 knots diminishing to 10 to
20 knots. freezing spray. waves subsiding to 1 to 3 feet. 

$$