fzus63 kdtx 020151
glflh 
expires:202604021000;;678429

open lake forecast for lake huron
national weather service detroit/pontiac mi
951 pm 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...the expansive strong surface high, 30.50 inches,
currently situated north of lake huron, will continue to push 
eastward across quebec through the evening. low pressure, 29.50 
inches, will approach from the central plains into the western 
great lakes on thursday, bringing another round of precipitation 
to the region. this low will then exit northeast of the great 
lakes on friday. another low, 29.70 inches, then quickly follows 
into the region on saturday.


lhz361-021000-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
951 pm edt wed apr 1 2026

.rest of tonight...east winds 10 to 15 knots increasing to 20 to
25 knots. waves 2 to 4 feet building to 5 to 7 feet after
midnight. waves occasionally around 10 feet. 
.thursday...east winds 20 to 25 knots with gusts to around
30 knots increasing to 30 knots with gusts to 35 knot gales late
in the afternoon. a chance of snow and sleet in the morning...
then freezing rain...rain and sleet in the afternoon.
precipitation may be heavy at times in the afternoon. waves 8 to
12 feet. waves occasionally around 15 feet. 
.thursday night...east winds to 30 knots with gusts to 35 knot
gales becoming southeast 10 to 15 knots. rain. waves 8 to
12 feet. waves occasionally around 15 feet. 
.friday...west winds 15 to 20 knots. waves 4 to 6 feet. waves
occasionally around 8 feet. 
.friday night...west winds 10 to 15 knots veering to the
northeast by midnight...then becoming east 15 to 20 knots after
midnight. a chance of rain after midnight. waves 2 to 4 feet
building to 4 to 6 feet after midnight. waves occasionally around
8 feet. 
.saturday...east winds 20 to 25 knots with gusts to around
30 knots decreasing to 15 to 20 knots late in the morning...then
becoming west 20 to 25 knots late in the evening. rain. a chance
of rain late in the afternoon. waves 6 to 9 feet. waves
occasionally around 12 feet. 
.sunday...west winds to 30 knots becoming northwest 15 to
20 knots. waves 6 to 9 feet. waves occasionally around 12 feet. 
.monday...northwest winds 10 to 15 knots decreasing to 5 to
10 knots in the late morning and early afternoon...then
increasing to 10 to 15 knots early in the evening becoming north
15 to 20 knots by midnight. waves 3 to 5 feet subsiding to 1 to
3 feet until early evening...then building to 3 to 5 feet by
midnight. 

wave heights are for ice free areas.

$$

fzus63 kdtx 020151
glflh 
expires:202604021000;;678430

open lake forecast for lake huron
national weather service detroit/pontiac mi
951 pm 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...the expansive strong surface high, 30.50 inches,
currently situated north of lake huron, will continue to push 
eastward across quebec through the evening. low pressure, 29.50 
inches, will approach from the central plains into the western 
great lakes on thursday, bringing another round of precipitation 
to the region. this low will then exit northeast of the great 
lakes on friday. another low, 29.70 inches, then quickly follows 
into the region on saturday.


lhz362-363-021000-
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-
951 pm edt wed apr 1 2026

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


$$

fzus63 kdtx 020151
glflh 
expires:202604021000;;678431

open lake forecast for lake huron
national weather service detroit/pontiac mi
951 pm 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...the expansive strong surface high, 30.50 inches,
currently situated north of lake huron, will continue to push 
eastward across quebec through the evening. low pressure, 29.50 
inches, will approach from the central plains into the western 
great lakes on thursday, bringing another round of precipitation 
to the region. this low will then exit northeast of the great 
lakes on friday. another low, 29.70 inches, then quickly follows 
into the region on saturday.


lhz462>464-021000-
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-
951 pm edt wed apr 1 2026

.rest of tonight...northeast winds 15 to 20 knots decreasing to
10 to 15 knots after midnight. waves 4 to 6 feet. waves
occasionally around 8 feet. 
.thursday...east winds 10 to 15 knots. rain. waves 3 to 5 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. a chance of rain and thunderstorms in the
evening...then rain likely after midnight. waves 5 to 7 feet.
waves occasionally around 10 feet. 
.friday...south winds 20 to 25 knots becoming southwest 15 to
20 knots in the late morning and early afternoon...then becoming
west 10 to 15 knots early in the afternoon. waves 5 to 7 feet.
waves occasionally around 10 feet. 
.friday night...northwest winds 10 to 15 knots veering to the
northeast in the late evening and overnight. a chance of rain
after midnight. waves 2 to 4 feet subsiding to 1 to 3 feet by
midnight...then building to 2 to 4 feet after midnight. 
.saturday...east winds 10 to 15 knots becoming south 15 to
20 knots late in the morning...then veering to the southwest late
in the evening. rain likely in the morning. rain late in the
morning...then a chance of rain late in the evening. waves 3 to
5 feet building to 5 to 7 feet late in the afternoon. waves
occasionally around 10 feet. 
.sunday...west winds 20 to 25 knots becoming northwest 15 to
20 knots . waves 6 to 9 feet. waves occasionally around 12 feet. 
.monday...northwest winds 10 to 15 knots decreasing to 5 to
10 knots in the late morning and early afternoon...then veering
to the northwest 5 to 10 knots early in the evening increasing to
10 to 15 knots by midnight. waves 4 to 6 feet. waves occasionally
around 8 feet. 


$$

fzus63 kmkx 020216
glflm 
expires:202604020930;;679835

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
916 pm 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...

breezy northeast to east winds will increase through thursday 
morning as high pressure of 30.7 remains near james bay and low 
pressure of 29.4 inches approaches from the central plains. these
winds will then reach gale force thursday morning and through the
day as a warm front lifts northward over the lake.

easterly gales over the northern third of the lake will continue 
through the day, while the southern two thirds may see a lull 
during the afternoon as the warm front slowly moves in. then 
southerly gales are expected over the southern two thirds during
the evening hours. a gale warning with two segments remains in 
effect, with staggered end times, and it was expanded to include
the southern tip of the lake. thunderstorms are also expected 
over the southern two thirds of lake michigan thursday afternoon 
and evening. winds will abruptly shift to the west behind the cold
front thursday night.

beyond, winds become light and variable friday late morning into
friday afternoon before gusty northeast winds return ahead of a
low pressure of 29.8 inches on saturday.


lmz080-669-671-673-675-777-779-870-872-874-876-878-020930-
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-
916 pm cdt wed apr 1 2026

sheboygan wi to pentwater mi south...

...gale warning in effect from 7 am cdt thursday through late
thursday night...

.rest of tonight...east winds to 30 kt. chance of rain late this
evening, then rain and slight chance of thunderstorms overnight.
waves 4 to 7 ft occasionally to 9 ft building to 5 to 8 ft
occasionally to 10 ft. 
.thursday...east gales to 35 kt becoming south. rain showers and 
chance of thunderstorms. waves 5 to 8 ft occasionally to 10 ft. 
.thursday night...south gales to 35 kt becoming southwest to
30 kt overnight. rain showers likely with a chance of 
thunderstorms in the evening, then chance of rain showers 
overnight. waves 6 to 9 ft occasionally to 12 ft building to 8 to 
11 ft occasionally to 14 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 10 to 20 kt becoming east 15 to
25 kt. rain showers with a chance of thunderstorms. waves 3 to 5 
ft. 
.saturday...south winds 15 to 25 kt becoming southwest. rain
showers with a chance of thunderstorms in the morning, then
chance of rain showers in the afternoon. waves 4 to 6 ft
occasionally to 8 ft. 
.saturday night...west winds to 30 kt. waves 7 to 10 ft
occasionally to 13 ft. 
.sunday...northwest winds to 30 kt. waves 8 to 11 ft occasionally
to 14 ft. 
.monday...northwest winds 10 to 20 kt. waves 2 to 4 ft.  

$$

fzus63 kmkx 020216
glflm 
expires:202604020930;;679833

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
916 pm 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...

breezy northeast to east winds will increase through thursday 
morning as high pressure of 30.7 remains near james bay and low 
pressure of 29.4 inches approaches from the central plains. these
winds will then reach gale force thursday morning and through the
day as a warm front lifts northward over the lake.

easterly gales over the northern third of the lake will continue 
through the day, while the southern two thirds may see a lull 
during the afternoon as the warm front slowly moves in. then 
southerly gales are expected over the southern two thirds during
the evening hours. a gale warning with two segments remains in 
effect, with staggered end times, and it was expanded to include
the southern tip of the lake. thunderstorms are also expected 
over the southern two thirds of lake michigan thursday afternoon 
and evening. winds will abruptly shift to the west behind the cold
front thursday night.

beyond, winds become light and variable friday late morning into
friday afternoon before gusty northeast winds return ahead of a
low pressure of 29.8 inches on saturday.


lmz261-362-364-563-020930-
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-
916 pm cdt wed apr 1 2026

sturgeon bay wi to point betsie mi north...

...gale warning in effect from 7 am cdt thursday through thursday
evening...

.rest of tonight...east winds to 30 kt. chance of light freezing
rain and slight chance of snow overnight. waves 5 to 8 ft
occasionally to 10 ft. 
.thursday...east winds to 30 kt increasing to gales to 40 kt.
rain showers and chance of a wintry mix in the morning, then rain
showers and slight chance of thunderstorms in the afternoon. 
waves 6 to 9 ft occasionally to 12 ft. 
.thursday night...east gales to 40 kt becoming southeast to 30 kt
late in the evening, then becoming south after midnight and
southwest late. rain showers with a chance of thunderstorms in the
evening, then chance of rain showers and thunderstorms overnight.
waves 7 to 10 ft occasionally to 13 ft. 
.friday...west winds to 30 kt becoming northwest 15 to 25 kt.
waves 6 to 9 ft occasionally to 12 ft subsiding to 3 to 5 ft. 
.friday night...northeast winds 10 to 20 kt becoming east to
30 kt overnight. chance of rain showers in the evening, then rain
showers overnight. waves 2 to 4 ft building to 4 to 7 ft
occasionally to 9 ft. 
.saturday...east winds to 30 kt becoming south. rain showers in
the morning, then chance of rain showers in the afternoon. waves
4 to 7 ft occasionally to 9 ft subsiding to 4 to 6 ft
occasionally to 8 ft. 
.saturday night...west winds to 30 kt. waves 5 to 8 ft
occasionally to 10 ft. 
.sunday...northwest winds to 30 kt. waves 6 to 9 ft occasionally
to 12 ft. 
.monday...northwest winds 10 to 20 kt. waves 1 to 3 ft.  

$$

fzus63 kmkx 020216
glflm 
expires:202604020930;;679834

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
916 pm 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...

breezy northeast to east winds will increase through thursday 
morning as high pressure of 30.7 remains near james bay and low 
pressure of 29.4 inches approaches from the central plains. these
winds will then reach gale force thursday morning and through the
day as a warm front lifts northward over the lake.

easterly gales over the northern third of the lake will continue 
through the day, while the southern two thirds may see a lull 
during the afternoon as the warm front slowly moves in. then 
southerly gales are expected over the southern two thirds during
the evening hours. a gale warning with two segments remains in 
effect, with staggered end times, and it was expanded to include
the southern tip of the lake. thunderstorms are also expected 
over the southern two thirds of lake michigan thursday afternoon 
and evening. winds will abruptly shift to the west behind the cold
front thursday night.

beyond, winds become light and variable friday late morning into
friday afternoon before gusty northeast winds return ahead of a
low pressure of 29.8 inches on saturday.


lmz366-565-567-868-020930-
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-
916 pm cdt wed apr 1 2026

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

...gale warning in effect from 7 am cdt thursday through late
thursday night...

.rest of tonight...east winds to 30 kt diminishing to 15 to
25 kt. rain and chance of freezing rain overnight. waves 5 to 8 
ft occasionally to 10 ft subsiding to 4 to 6 ft occasionally to 8 
ft.
.thursday...east winds to 30 kt becoming southeast. gale force
gusts to 35 kt. rain showers in the morning, then rain showers 
with a chance of thunderstorms in the afternoon. waves 5 to 8 ft 
occasionally to 10 ft. 
.thursday night...south winds to 30 kt with gale force gusts to 35
kt, becoming southwest to 30 kt overnight. rain showers with a 
chance of thunderstorms in the evening, then chance of rain 
showers overnight. waves 8 to 11 ft occasionally to 14 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 10 to 20 kt becoming east. chance
of rain showers in the evening, then rain showers overnight.
waves 3 to 5 ft. 
.saturday...southeast winds 10 to 20 kt veering to southwest
15 to 25 kt. rain showers in the morning, then chance of rain
showers in the afternoon. waves 4 to 6 ft occasionally to 8 ft. 
.saturday night...west winds to 30 kt. waves 6 to 9 ft
occasionally to 12 ft. 
.sunday...northwest winds to 30 kt. waves 7 to 10 ft occasionally
to 13 ft. 
.monday...northwest winds 10 to 20 kt becoming north. waves 2 to
4 ft.  

$$

fzus63 kmqt 020201
glfls 
expires:202604020800;;678705

open lake forecast for lake superior
national weather service marquette mi
1000 pm 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...

tonight, 30.7 inch high pressure over quebec is extending 30.4 inch 
ridging over lake superior. meanwhile, a 29.4 inch low is moving 
from colorado to western kansas. this low lifts through the central 
plains and continues northeast thursday, reaching 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 at 29.3 inches over 
northern quebec and a 30.3 inch high over the great plains. pressure 
rises on lake superior early next week as the high builds to 30.6 
inches over the red river valley (of the north).



lsz265-020800-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
1000 pm edt wed apr 1 2026

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

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

$$

fzus63 kmqt 020201
glfls 
expires:202604020800;;678706

open lake forecast for lake superior
national weather service marquette mi
1000 pm 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...

tonight, 30.7 inch high pressure over quebec is extending 30.4 inch 
ridging over lake superior. meanwhile, a 29.4 inch low is moving 
from colorado to western kansas. this low lifts through the central 
plains and continues northeast thursday, reaching 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 at 29.3 inches over 
northern quebec and a 30.3 inch high over the great plains. pressure 
rises on lake superior early next week as the high builds to 30.6 
inches over the red river valley (of the north).



lsz266-020800-
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-
1000 pm edt wed apr 1 2026

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

.rest of tonight...east winds 15 to 25 knots. waves 1 to 3 feet
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. 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 backing northeast after
midnight, then becoming north 20 to 30 knots late. rain, freezing
rain likely and sleet, possibly mixed with snow. 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. a slight chance of rain showers,
freezing rain and snow showers through early afternoon. waves
subsiding to 3 to 5 feet occasionally to 7 feet. 
.friday night...northeast winds 20 to 30 knots becoming east
gales to 40 knots after midnight. a chance of rain, possibly
mixed with snow through midnight. a slight chance of sleet. rain,
possibly mixed with snow after midnight. waves building to 7 to
10 feet occasionally to 13 feet. 
.saturday...east gales to 40 knots diminishing to 20 to 30 knots
by mid afternoon. rain. snow likely by mid afternoon. waves
building to 8 to 11 feet occasionally to 14 feet, then subsiding
to 4 to 7 feet occasionally to 9 feet. 
.saturday night...north gales to 35 knots becoming northwest
gales to 40 knots after midnight. a chance of rain showers
through midnight. a chance of snow showers. freezing spray after
midnight. waves building to 11 to 15 feet occasionally to
19 feet. 
.sunday...northwest gales to 40 knots diminishing to 15 to
25 knots. freezing spray. waves building to 12 to 17 feet
occasionally to 21 feet, then subsiding to 2 to 4 feet. 
.monday...north winds 15 to 25 knots. waves building to 5 to
8 feet occasionally to 10 feet. 

$$

fzus63 kmqt 020201
glfls 
expires:202604020800;;678707

open lake forecast for lake superior
national weather service marquette mi
1000 pm 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...

tonight, 30.7 inch high pressure over quebec is extending 30.4 inch 
ridging over lake superior. meanwhile, a 29.4 inch low is moving 
from colorado to western kansas. this low lifts through the central 
plains and continues northeast thursday, reaching 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 at 29.3 inches over 
northern quebec and a 30.3 inch high over the great plains. pressure 
rises on lake superior early next week as the high builds to 30.6 
inches over the red river valley (of the north).



lsz267-020800-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
1000 pm edt wed apr 1 2026

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

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

$$

fzus63 kmqt 020201
glfls 
expires:202604020800;;678702

open lake forecast for lake superior
national weather service marquette mi
1000 pm 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...

tonight, 30.7 inch high pressure over quebec is extending 30.4 inch 
ridging over lake superior. meanwhile, a 29.4 inch low is moving 
from colorado to western kansas. this low lifts through the central 
plains and continues northeast thursday, reaching 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 at 29.3 inches over 
northern quebec and a 30.3 inch high over the great plains. pressure 
rises on lake superior early next week as the high builds to 30.6 
inches over the red river valley (of the north).



lsz162-020800-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
1000 pm edt wed apr 1 2026 /900 pm cdt wed apr 1 2026/

...gale warning in effect from 8 am edt /7 am cdt/ thursday
through late thursday night...

.rest of tonight...east winds 20 to 30 knots diminishing to 15 to
25 knots after midnight. a slight chance of snow. waves 4 to
7 feet occasionally to 9 feet. 
.thursday...east winds 20 to 30 knots increasing to gales to
40 knots in the afternoon. a chance of snow through early
afternoon, then snow, possibly mixed with sleet by mid afternoon.
waves building to 12 to 17 feet occasionally to 21 feet. 
.thursday night...northeast gales to 40 knots becoming north
20 to 30 knots late. snow, possibly mixed with sleet through
midnight, then a chance of snow after midnight. waves subsiding
to 5 to 8 feet occasionally to 10 feet. 
.friday...north winds 15 to 25 knots veering east by mid
afternoon. a slight chance of snow showers and sleet, possibly
mixed with freezing rain by mid afternoon. waves subsiding to
3 to 6 feet occasionally to 8 feet. 
.friday night...east winds 20 to 30 knots increasing to gales to
35 knots after midnight. a chance of snow, possibly mixed with
sleet through midnight. a slight chance of rain. snow after
midnight. waves building to 8 to 11 feet occasionally to 14 feet.
.saturday...northeast gales to 35 knots becoming north 20 to
30 knots by mid afternoon. rain through early afternoon. snow.
waves subsiding to 5 to 8 feet occasionally to 10 feet. 
.saturday night...north winds 20 to 30 knots backing northwest
after midnight. a chance of snow showers. waves subsiding to 3 to
6 feet occasionally to 8 feet. 
.sunday...west winds 15 to 25 knots becoming northwest 10 to
20 knots. waves subsiding to calm to 2 feet. 
.monday...north winds 10 to 20 knots. waves building to 2 to
4 feet, then subsiding to 1 to 3 feet. 

$$

fzus63 kmqt 020201
glfls 
expires:202604020800;;678703

open lake forecast for lake superior
national weather service marquette mi
1000 pm 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...

tonight, 30.7 inch high pressure over quebec is extending 30.4 inch 
ridging over lake superior. meanwhile, a 29.4 inch low is moving 
from colorado to western kansas. this low lifts through the central 
plains and continues northeast thursday, reaching 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 at 29.3 inches over 
northern quebec and a 30.3 inch high over the great plains. pressure 
rises on lake superior early next week as the high builds to 30.6 
inches over the red river valley (of the north).



lsz263-020800-
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-
1000 pm edt wed apr 1 2026

...gale warning in effect from 8 am edt thursday through late
thursday night...

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

$$

fzus63 kmqt 020201
glfls 
expires:202604020800;;678704

open lake forecast for lake superior
national weather service marquette mi
1000 pm 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...

tonight, 30.7 inch high pressure over quebec is extending 30.4 inch 
ridging over lake superior. meanwhile, a 29.4 inch low is moving 
from colorado to western kansas. this low lifts through the central 
plains and continues northeast thursday, reaching 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 at 29.3 inches over 
northern quebec and a 30.3 inch high over the great plains. pressure 
rises on lake superior early next week as the high builds to 30.6 
inches over the red river valley (of the north).



lsz264-020800-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
1000 pm edt wed apr 1 2026

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

.rest of tonight...east winds 10 to 20 knots increasing to 15 to
25 knots late. waves 1 to 3 feet building to 4 to 7 feet
occasionally to 9 feet. 
.thursday...east winds 20 to 30 knots increasing to gales to
35 knots late. a chance of snow through early afternoon, then
snow, possibly mixed with sleet by mid afternoon. waves building
to 9 to 12 feet occasionally to 15 feet. 
.thursday night...east gales to 35 knots becoming northeast 20 to
30 knots after midnight, then backing north late. sleet likely
through midnight. snow. freezing rain likely, possibly mixed with
sleet after midnight. waves building to 10 to 14 feet
occasionally to 18 feet, then subsiding to 6 to 9 feet
occasionally to 11 feet. 
.friday...north winds 20 to 30 knots becoming northeast 15 to
25 knots by mid afternoon. a chance of snow showers, possibly
mixed with sleet through early afternoon. waves subsiding to 3 to
5 feet occasionally to 7 feet. 
.friday night...east winds 20 to 30 knots increasing to gales to
40 knots after midnight. a chance of rain and snow through
midnight. a slight chance of sleet. snow, possibly mixed with
rain after midnight. waves building to 7 to 10 feet occasionally
to 13 feet. 
.saturday...east gales to 35 knots becoming northeast 20 to
30 knots by mid afternoon. rain through early afternoon. snow.
waves subsiding to 5 to 8 feet occasionally to 10 feet. 
.saturday night...north gales to 35 knots. a chance of snow
showers. freezing spray after midnight. waves building to 8 to
11 feet occasionally to 14 feet. 
.sunday...northwest gales to 35 knots becoming north 10 to
20 knots. freezing spray. waves subsiding to 1 to 3 feet. 
.monday...north winds 10 to 20 knots increasing to 15 to
25 knots. waves building to 2 to 4 feet, then subsiding to 1 to
3 feet. 

$$