fzus63 kdtx 140135
glflh 
expires:202603140945;;631275

open lake forecast for lake huron
national weather service detroit/pontiac mi
935 pm edt fri mar 13 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...a strong low pressure system, 29.10 inches, moves from northern 
lower michigan to central lake huron this evening. this will 
continue to bring widespread gales to the great lakes. a gale 
warning is in effect. the low quickly moves out tonight with high 
pressure, 30.20 inches, briefly building back in on saturday. a 
second strong low pressure system, 28.90 inches, moves across 
southern michigan and lake huron late sunday into monday. this 
brings additional potential for gust to gales. 


lhz361-362-140945-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
lake huron from presque isle light to sturgeon point mi beyond
5nm off shore-
935 pm edt fri mar 13 2026

...gale warning in effect until 4 am edt saturday...

.rest of tonight...north winds 20 to 25 knots increasing to
30 knots after midnight...then becoming northwest 20 to 25 knots
early in the morning. gusts to 35 knot gales. numerous snow
showers this evening...then scattered snow showers after
midnight. waves 8 to 12 feet. waves occasionally around 15 feet. 
.saturday...northwest winds 20 to 25 knots with gusts to around
30 knots becoming west 5 to 10 knots. waves 6 to 9 feet subsiding
to 3 to 5 feet late in the afternoon. waves occasionally around
12 feet. 
.saturday night...north winds 5 to 10 knots veering to the
southeast by midnight...then increasing to 10 to 15 knots after
midnight. a chance of snow after midnight. waves 1 to 3 feet
building to 2 to 4 feet after midnight. 
.sunday...east winds 20 to 25 knots with gusts to around 30 knots
increasing to 35 knot gales with gusts to 40 knot gales. a chance
of snow in the morning...then snow...sleet and rain in the
afternoon. snow may be heavy at times. waves 6 to 9 feet building
to 12 to 16 feet in the late morning and afternoon. waves
occasionally around 20 feet. a gale warning may be needed. 
.sunday night...northeast at 35 knot gales with gusts to 45 knot
gales. rain...snow...freezing rain and sleet in the evening...
then rain...freezing rain and sleet after midnight. precipitation
may be heavy at times. waves 14 to 18 feet. waves occasionally
around 23 feet. 
.monday...north winds to 30 knots veering to the south late in
the morning...then becoming west at 40 knot gales late in the
afternoon. rain with snow likely...then a chance of snow late in
the afternoon. waves 14 to 18 feet building to 15 to 20 feet late
in the evening. waves occasionally around 25 feet. 
.tuesday...northwest at 35 knot gales with gusts to 40 knot gales
becoming west 15 to 20 knots. a chance of snow early in the
morning. waves 14 to 18 feet subsiding to 8 to 12 feet . waves
occasionally around 23 feet. 
.wednesday...southwest winds 15 to 20 knots becoming south 20 to
25 knots in the late morning and early afternoon...then
decreasing to 15 to 20 knots . a chance of snow until afternoon.
waves 4 to 6 feet building to 6 to 9 feet. waves occasionally
around 12 feet. 


$$

fzus63 kdtx 140135
glflh 
expires:202603140945;;631276

open lake forecast for lake huron
national weather service detroit/pontiac mi
935 pm edt fri mar 13 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...a strong low pressure system, 29.10 inches, moves from northern 
lower michigan to central lake huron this evening. this will 
continue to bring widespread gales to the great lakes. a gale 
warning is in effect. the low quickly moves out tonight with high 
pressure, 30.20 inches, briefly building back in on saturday. a 
second strong low pressure system, 28.90 inches, moves across 
southern michigan and lake huron late sunday into monday. this 
brings additional potential for gust to gales. 


lhz363-140945-
lake huron from sturgeon point to alabaster mi beyond 5nm off
shore-
935 pm edt fri mar 13 2026

...gale warning in effect until 4 am edt saturday...

.rest of tonight...west winds 20 to 25 knots becoming northwest
to 30 knots after midnight...then decreasing to 20 to 25 knots
early in the morning. gusts to 40 knot gales. numerous snow
showers and showers this evening...then scattered snow showers
after midnight. waves 8 to 12 feet building to 10 to 14 feet
early in the morning. waves occasionally around 18 feet. 
.saturday...northwest winds 20 to 25 knots with gusts to around
30 knots decreasing to 5 to 10 knots. waves 8 to 12 feet
subsiding to 4 to 6 feet late in the afternoon. waves
occasionally around 15 feet. 
.saturday night...north winds 5 to 10 knots veering to the
southeast by midnight...then increasing to 10 to 15 knots after
midnight. a chance of snow after midnight. waves 2 to 4 feet
subsiding to 1 to 3 feet by midnight...then building to 2 to
4 feet after midnight. 
.sunday...east winds 20 to 25 knots increasing to 30 knots early
in the afternoon. gusts to 35 knot gales. snow...sleet...rain and
freezing rain. waves 6 to 9 feet building to 10 to 14 feet early
in the afternoon. waves occasionally around 18 feet. 
.sunday night...southeast winds to 30 knots with gusts to 40 knot
gales. rain. waves 10 to 14 feet. waves occasionally around
18 feet. 
.monday...south winds to 30 knots with gusts to 35 knot gales
veering to the southwest with gusts to 40 knot gales late in the
morning...then becoming west at 35 knot gales with gusts to
45 knot gales late in the afternoon. rain with snow likely in the
morning...then rain likely late in the morning. a chance of snow.
waves 12 to 16 feet building to 15 to 20 feet late in the
evening. waves occasionally around 25 feet. a gale warning may be
needed. 
.tuesday...northwest winds to 30 knots with gusts to 35 knot
gales becoming west 15 to 20 knots. a chance of snow early in the
morning. waves 14 to 18 feet subsiding to 8 to 12 feet . waves
occasionally around 23 feet. 
.wednesday...southwest winds 15 to 20 knots becoming south 20 to
25 knots in the late morning and early afternoon...then
decreasing to 15 to 20 knots . waves 5 to 7 feet. waves
occasionally around 10 feet. 


$$

fzus63 kdtx 140135
glflh 
expires:202603140945;;631277

open lake forecast for lake huron
national weather service detroit/pontiac mi
935 pm edt fri mar 13 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...a strong low pressure system, 29.10 inches, moves from northern 
lower michigan to central lake huron this evening. this will 
continue to bring widespread gales to the great lakes. a gale 
warning is in effect. the low quickly moves out tonight with high 
pressure, 30.20 inches, briefly building back in on saturday. a 
second strong low pressure system, 28.90 inches, moves across 
southern michigan and lake huron late sunday into monday. this 
brings additional potential for gust to gales. 


lhz462>464-140945-
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-
935 pm edt fri mar 13 2026

...gale warning in effect until 4 am edt saturday...

.rest of tonight...west winds to 30 knots veering to the
northwest early in the morning. gusts to 40 knot gales. numerous
snow showers this evening...then scattered snow showers after
midnight. waves 8 to 12 feet. waves occasionally around 15 feet. 
.saturday...northwest winds 20 to 25 knots with gusts to around
30 knots decreasing to 5 to 10 knots. waves 8 to 12 feet
subsiding to 4 to 6 feet late in the afternoon. waves
occasionally around 15 feet. 
.saturday night...north winds 5 to 10 knots veering to the east
by midnight...then increasing to 10 to 15 knots after midnight.
snow likely after midnight. waves 2 to 4 feet subsiding to 1 to
3 feet by midnight...then building to 3 to 5 feet after midnight.
.sunday...east winds 20 to 25 knots with gusts to around
30 knots. snow and rain likely in the morning...then a chance of
rain and possible sleet with freezing rain in the afternoon.
waves 6 to 9 feet. waves occasionally around 12 feet. 
.sunday night...southeast winds to 30 knots with gusts to 45 knot
gales becoming south at 35 knot gales with gusts to 45 knot gales
after midnight. a chance of rain in the evening...then rain after
midnight. waves 10 to 14 feet. waves occasionally around 18 feet.
a gale warning may be needed. 
.monday...south winds to 30 knots veering to the southwest late
in the morning...then becoming west at 35 knot gales late in the
afternoon. gusts to 40 knot gales. rain in the morning...then
rain likely late in the morning. a chance of snow. waves 12 to
16 feet. waves occasionally around 20 feet. 
.tuesday...west at 35 knot gales with gusts to 40 knot gales
decreasing to 15 to 20 knots. a chance of snow early in the
morning. waves 12 to 16 feet subsiding to 6 to 9 feet . waves
occasionally around 20 feet. 
.wednesday...southwest winds 15 to 20 knots becoming south 20 to
25 knots in the late morning and early afternoon...then
decreasing to 15 to 20 knots . a chance of snow until afternoon.
waves 5 to 7 feet. waves occasionally around 10 feet. 


$$

fzus63 kmkx 140203
glflm 
expires:202603140930;;631896

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
903 pm cdt fri mar 13 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...

strong low pressure now around 29.4 inches will push into southern
ontario tonight. strong northwest winds continue this evening. 
widespread gale force gusts will continue for the next few hours
but will gradually weaken as higher pressure around 30.2 inches 
nudges in from the west. gale warning remains in effect for the
entire lake until 6z. some light freezing spray may occur over 
northern lake michigan this evening.

east northeast winds will steadily increase saturday night 
through sunday, as a second low pressure system around 29.4 inches
forms in the central great plains. the low will progress over far
southern lake michigan sunday night as it deepens toward 29.1 
inches, resulting in strong northerly winds developing.

strong winds will shift out of the northwest monday, as the 
strong low continues to move into ontario. expect another 
prolonged period of gales, if not storm force gusts, across all of
the open waters and nearshore waters early sunday morning through
monday night at various directions as the low progresses through
the region. gale watches or storm watches are likely for this 
period.

prolonged snow is expected saturday night through monday, some of
which could be heavy over northern portions of the lake. sleet or
freezing rain should mix in with rain and snow over central and
parts of northern lake michigan saturday night into sunday, with 
mainly rain and perhaps a few thunderstorms in the far southern 
portions of the lake sunday into sunday evening. snow is then 
expected over southern portions of the lake sunday night into 
monday night.

freezing spray potential will increase monday and linger into
tuesday behind the departing low, with areas of moderate to heavy
freezing spray possible. trends will be monitored in coming 
forecasts for potential headlines.


lmz080-669-671-673-675-777-779-870-872-874-876-878-140930-
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-
903 pm cdt fri mar 13 2026

sheboygan wi to pentwater mi south...

...gale warning in effect until 1 am cdt saturday...

.rest of tonight...northwest gales to 45 kt diminishing to 15 to
25 kt. waves 15 to 20 ft occasionally to 26 ft subsiding to 8 to
11 ft occasionally to 14 ft. 
.saturday...north winds 10 to 15 kt veering to east. waves 5 to
8 ft occasionally to 10 ft subsiding to 1 to 3 ft. 
.saturday night...east winds 10 to 20 kt becoming southeast gales
to 40 kt. chance of snow in the evening, then snow with a chance
of rain overnight. waves 2 to 4 ft building to 8 to 11 ft
occasionally to 14 ft. 
.sunday...southeast gales to 40 kt diminishing to gales to 35 kt.
chance of rain and light freezing rain in the morning, then rain
in the afternoon. waves 12 to 16 ft occasionally to 21 ft. 
.sunday night...west gales to 45 kt becoming northwest storm
force winds to 50 kt. rain, snow and freezing rain in the
evening, then rain and snow overnight. waves 18 to 23 ft
occasionally to 30 ft building to 20 to 25 ft occasionally to
33 ft. 
.monday...northwest storm force winds to 50 kt diminishing to
gales to 45 kt. freezing spray. snow likely. waves 20 to 25 ft
occasionally to 33 ft. 
.monday night...northwest storm force winds to 50 kt diminishing
to gales to 40 kt. heavy freezing spray. chance of snow. waves
18 to 23 ft occasionally to 30 ft. 
.tuesday...northwest gales to 35 kt becoming west 15 to 25 kt.
freezing spray. waves 12 to 16 ft occasionally to 21 ft subsiding
to 8 to 11 ft occasionally to 14 ft. 
.wednesday...south winds to 30 kt. chance of snow. waves 8 to
12 ft occasionally to 16 ft.  

$$

fzus63 kmkx 140203
glflm 
expires:202603140930;;631895

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
903 pm cdt fri mar 13 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...

strong low pressure now around 29.4 inches will push into southern
ontario tonight. strong northwest winds continue this evening. 
widespread gale force gusts will continue for the next few hours
but will gradually weaken as higher pressure around 30.2 inches 
nudges in from the west. gale warning remains in effect for the
entire lake until 6z. some light freezing spray may occur over 
northern lake michigan this evening.

east northeast winds will steadily increase saturday night 
through sunday, as a second low pressure system around 29.4 inches
forms in the central great plains. the low will progress over far
southern lake michigan sunday night as it deepens toward 29.1 
inches, resulting in strong northerly winds developing.

strong winds will shift out of the northwest monday, as the 
strong low continues to move into ontario. expect another 
prolonged period of gales, if not storm force gusts, across all of
the open waters and nearshore waters early sunday morning through
monday night at various directions as the low progresses through
the region. gale watches or storm watches are likely for this 
period.

prolonged snow is expected saturday night through monday, some of
which could be heavy over northern portions of the lake. sleet or
freezing rain should mix in with rain and snow over central and
parts of northern lake michigan saturday night into sunday, with 
mainly rain and perhaps a few thunderstorms in the far southern 
portions of the lake sunday into sunday evening. snow is then 
expected over southern portions of the lake sunday night into 
monday night.

freezing spray potential will increase monday and linger into
tuesday behind the departing low, with areas of moderate to heavy
freezing spray possible. trends will be monitored in coming 
forecasts for potential headlines.


lmz261-362-364-366-563-565-567-868-140930-
lake michigan from seul choix point to rock island passage 5 nm
offshore to mid lake-
lake michigan south of a line from seul choix point to the
mackinac bridge and north of a line from charlevoix mi to south
fox island 5 nm offshore-
lake michigan from charlevoix to point betsie mi 5 nm offshore to
mid lake-
lake michigan from point betsie to manistee mi 5 nm offshore to
mid lake-
lake michigan from rock island passage to sturgeon bay wi-
lake michigan from sturgeon bay to two rivers wi 5 nm offshore to
mid lake-
lake michigan from two rivers to sheboygan wi 5 nm offshore to
mid lake-
lake michigan from pentwater to manistee mi 5 nm offshore to mid
lake-
903 pm cdt fri mar 13 2026

sheboygan wi to pentwater mi north...

...gale warning in effect until 1 am cdt saturday...

.rest of tonight...northwest gales to 40 kt diminishing to 15 to
25 kt. chance of snow through early evening. waves 12 to 16 ft
occasionally to 21 ft subsiding to 6 to 9 ft occasionally to
12 ft. 
.saturday...northwest winds 10 to 20 kt diminishing to 5 to 10 kt
late in the morning, then becoming northwest 5 to 10 kt early in
the afternoon backing to south late. waves 4 to 6 ft occasionally
to 8 ft subsiding to 1 to 3 ft. 
.saturday night...southeast winds 10 to 15 kt becoming east gales
to 35 kt. chance of snow in the evening, then snow overnight.
waves 1 to 2 ft building to 7 to 10 ft occasionally to 13 ft. 
.sunday...east gales to 40 kt becoming northeast gales to 45 kt.
visibility one quarter mile or less at times. snow with rain
likely in the morning, then snow, rain and freezing rain in the
afternoon. waves 8 to 12 ft occasionally to 16 ft building to
12 to 16 ft occasionally to 21 ft. 
.sunday night...northeast storm force winds to 50 kt becoming
north. visibility one quarter mile or less at times. snow, rain
and freezing rain in the evening, then snow and freezing rain
overnight. waves 18 to 23 ft occasionally to 30 ft. 
.monday...north storm force winds to 50 kt diminishing to gales
to 45 kt. visibility one quarter mile or less at times. snow in
the morning, then snow likely in the afternoon. waves 18 to 23 ft
occasionally to 30 ft. 
.monday night...northwest storm force winds to 50 kt diminishing
to gales to 45 kt. snow likely. visibility one quarter mile or
less at times. waves 18 to 23 ft occasionally to 30 ft. 
.tuesday...northwest gales to 35 kt diminishing to 15 to 25 kt.
heavy freezing spray. waves 12 to 16 ft occasionally to 21 ft
subsiding to 6 to 9 ft occasionally to 12 ft. 
.wednesday...south winds to 30 kt. freezing spray. chance of
snow. waves 8 to 12 ft occasionally to 16 ft.  

$$

fzus63 kmqt 140201
glfls 
expires:202603140800;;631771

open lake forecast for lake superior
national weather service marquette mi
1000 pm edt fri mar 13 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...

a weakening 29.4 inch low moves across southeast ontario tonight, 
reaching new england at 29.6 inches by saturday morning. a 30.2 inch 
ridge then extends over lake superior from central canada on 
saturday. a 29.2 inch low developing over the central plains 
saturday night tracks through lower michigan sunday night to 
northern lake huron at 28.9 inches by monday morning before lifting 
into canada monday evening. high pressure of around 30.4 inches then 
overspreads the northern plains on monday and moves over lake 
superior at 30.1 inches by tuesday. a weakening clipper low around 
29.7 inches then moves over northern ontario late wednesday.



lsz264-140800-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
1000 pm edt fri mar 13 2026

...gale watch in effect from sunday afternoon through sunday
evening...
...storm watch in effect from sunday evening through late monday
night...

.rest of tonight...north winds 15 to 25 knots diminishing to 5 to
15 knots late. freezing spray by midnight. waves 5 to 8 feet
occasionally to 10 feet subsiding to 2 to 4 feet. 
.saturday...northwest winds 5 to 15 knots backing southwest late.
waves subsiding to calm to 2 feet. 
.saturday night...south winds 5 to 15 knots backing southeast
after midnight, then becoming east 10 to 20 knots late. a slight
chance of snow after midnight. waves building to 2 to 4 feet. 
.sunday...east gales to 35 knots becoming northeast gales to
40 knots by mid afternoon. freezing spray. snow likely. waves
building to 11 to 15 feet occasionally to 19 feet. 
.sunday night...northeast storm force winds to 55 knots becoming
north storm force winds to 60 knots after midnight. heavy
freezing spray. snow likely through midnight. a chance of snow
after midnight. waves building to 17 to 22 feet occasionally to
28 feet. 
.monday...north storm force winds to 60 knots. heavy freezing
spray. a chance of snow. waves building to 20 to 25 feet
occasionally to 31 feet, then subsiding to 17 to 22 feet
occasionally to 28 feet. 
.monday night...north storm force winds to 55 knots diminishing
to gales to 45 knots after midnight. heavy freezing spray. waves
subsiding to 10 to 14 feet occasionally to 18 feet. 
.tuesday...northwest gales to 35 knots becoming south 15 to
25 knots. heavy freezing spray. waves subsiding to calm to
2 feet, then building to 3 to 6 feet occasionally to 8 feet. 
.wednesday...south winds 15 to 25 knots veering west. waves
subsiding to 2 to 4 feet, then building to 3 to 6 feet
occasionally to 8 feet. 

$$

fzus63 kmqt 140201
glfls 
expires:202603140800;;631772

open lake forecast for lake superior
national weather service marquette mi
1000 pm edt fri mar 13 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...

a weakening 29.4 inch low moves across southeast ontario tonight, 
reaching new england at 29.6 inches by saturday morning. a 30.2 inch 
ridge then extends over lake superior from central canada on 
saturday. a 29.2 inch low developing over the central plains 
saturday night tracks through lower michigan sunday night to 
northern lake huron at 28.9 inches by monday morning before lifting 
into canada monday evening. high pressure of around 30.4 inches then 
overspreads the northern plains on monday and moves over lake 
superior at 30.1 inches by tuesday. a weakening clipper low around 
29.7 inches then moves over northern ontario late wednesday.



lsz265-140800-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
1000 pm edt fri mar 13 2026

...gale watch in effect from sunday morning through sunday
evening...
...storm watch in effect from sunday evening through late monday
night...

.rest of tonight...north winds 20 to 30 knots diminishing to
10 to 20 knots. freezing spray. waves 7 to 10 feet occasionally
to 13 feet subsiding to 3 to 5 feet occasionally to 7 feet. 
.saturday...northwest winds 10 to 20 knots backing west in the
afternoon, then backing southeast late. waves subsiding to calm
to 2 feet. 
.saturday night...southeast winds 10 to 20 knots veering south
after midnight, then becoming east 15 to 25 knots late. a chance
of snow after midnight. waves building to 2 to 4 feet. 
.sunday...east gales to 35 knots becoming northeast gales to
45 knots by mid afternoon. freezing spray. snow. waves building
to 12 to 17 feet occasionally to 21 feet. 
.sunday night...northeast storm force winds to 55 knots becoming
north storm force winds to 60 knots after midnight. heavy
freezing spray. snow. waves building to 20 to 25 feet
occasionally to 31 feet. 
.monday...north hurricane force winds to 65 knots diminishing to
storm force winds to 60 knots by mid afternoon. heavy freezing
spray. snow likely. waves building to 22 to 27 feet occasionally
to 34 feet. 
.monday night...north storm force winds to 55 knots diminishing
to gales to 45 knots after midnight. heavy freezing spray. a
chance of snow showers. waves subsiding to 15 to 20 feet
occasionally to 25 feet. 
.tuesday...northwest gales to 35 knots becoming south 15 to
25 knots. heavy freezing spray. a chance of snow showers. waves
subsiding to 1 to 3 feet, then building to 3 to 5 feet
occasionally to 7 feet. 
.wednesday...south winds 15 to 25 knots veering west. waves
building to 3 to 6 feet occasionally to 8 feet, then subsiding to
1 to 3 feet. 

$$

fzus63 kmqt 140201
glfls 
expires:202603140800;;631773

open lake forecast for lake superior
national weather service marquette mi
1000 pm edt fri mar 13 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...

a weakening 29.4 inch low moves across southeast ontario tonight, 
reaching new england at 29.6 inches by saturday morning. a 30.2 inch 
ridge then extends over lake superior from central canada on 
saturday. a 29.2 inch low developing over the central plains 
saturday night tracks through lower michigan sunday night to 
northern lake huron at 28.9 inches by monday morning before lifting 
into canada monday evening. high pressure of around 30.4 inches then 
overspreads the northern plains on monday and moves over lake 
superior at 30.1 inches by tuesday. a weakening clipper low around 
29.7 inches then moves over northern ontario late wednesday.



lsz266-140800-
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 fri mar 13 2026

...gale watch in effect from sunday morning through sunday
evening...
...storm watch in effect from sunday evening through late monday
night...

.rest of tonight...north winds to 30 knots with a few gale force
gusts to 35 knots possible diminishing to 15 to 25 knots.
freezing spray. waves 7 to 10 feet occasionally to 13 feet
subsiding to 3 to 6 feet occasionally to 8 feet. 
.saturday...north winds 5 to 15 knots backing west in the
afternoon, then becoming southwest 10 to 20 knots late. waves
subsiding to calm to 2 feet. 
.saturday night...south winds 10 to 20 knots increasing to 15 to
25 knots after midnight, then backing east late. a chance of snow
after midnight. waves building to 3 to 5 feet occasionally to
7 feet. 
.sunday...east gales to 35 knots becoming northeast gales to
45 knots by mid afternoon. freezing spray. snow. waves building
to 12 to 17 feet occasionally to 21 feet. 
.sunday night...northeast storm force winds to 55 knots becoming
north storm force winds to 60 knots after midnight. heavy
freezing spray. snow. waves building to 20 to 25 feet
occasionally to 31 feet. 
.monday...north hurricane force winds to 65 knots. heavy freezing
spray. snow. waves building to 25 to 30 feet occasionally to
38 feet. 
.monday night...north storm force winds to 60 knots. heavy
freezing spray. a chance of snow showers. waves subsiding to
17 to 22 feet occasionally to 28 feet. 
.tuesday...northwest gales to 40 knots becoming south 20 to
30 knots. heavy freezing spray. waves subsiding to 3 to 5 feet
occasionally to 7 feet, then building to 5 to 8 feet occasionally
to 10 feet. 
.wednesday...south winds 20 to 30 knots veering west. freezing
spray. a chance of snow showers. waves building to 6 to 9 feet
occasionally to 11 feet, then subsiding to 3 to 6 feet
occasionally to 8 feet. 

$$

fzus63 kmqt 140201
glfls 
expires:202603140800;;631774

open lake forecast for lake superior
national weather service marquette mi
1000 pm edt fri mar 13 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...

a weakening 29.4 inch low moves across southeast ontario tonight, 
reaching new england at 29.6 inches by saturday morning. a 30.2 inch 
ridge then extends over lake superior from central canada on 
saturday. a 29.2 inch low developing over the central plains 
saturday night tracks through lower michigan sunday night to 
northern lake huron at 28.9 inches by monday morning before lifting 
into canada monday evening. high pressure of around 30.4 inches then 
overspreads the northern plains on monday and moves over lake 
superior at 30.1 inches by tuesday. a weakening clipper low around 
29.7 inches then moves over northern ontario late wednesday.



lsz267-140800-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
1000 pm edt fri mar 13 2026

...gale watch in effect from sunday afternoon through sunday
evening...
...storm watch in effect from sunday evening through late monday
night...

.rest of tonight...north winds to 30 knots with a few gale force
gusts to 35 knots possible diminishing to 15 to 25 knots.
freezing spray by midnight. waves 5 to 8 feet occasionally to
10 feet subsiding to 3 to 5 feet occasionally to 7 feet. 
.saturday...north winds 10 to 20 knots becoming southwest 5 to
15 knots in the afternoon. waves subsiding to calm to 2 feet. 
.saturday night...southeast winds 5 to 15 knots increasing to
15 to 25 knots. a slight chance of snow after midnight. waves
building to 3 to 5 feet occasionally to 7 feet. 
.sunday...east gales to 35 knots becoming northeast gales to
45 knots by mid afternoon. snow. freezing spray by mid afternoon.
waves building to 9 to 12 feet occasionally to 15 feet. 
.sunday night...northeast storm force winds to 60 knots. heavy
freezing spray. snow. waves building to 15 to 20 feet
occasionally to 25 feet. 
.monday...north storm force winds to 60 knots. heavy freezing
spray. snow. waves building to 17 to 22 feet occasionally to
28 feet. 
.monday night...north storm force winds to 55 knots diminishing
to gales to 45 knots after midnight. heavy freezing spray. snow
showers likely through midnight. a chance of snow showers after
midnight. waves building to 20 to 25 feet occasionally to
31 feet, then subsiding to 15 to 20 feet occasionally to 25 feet.
.tuesday...northwest gales to 40 knots becoming south 15 to
25 knots. heavy freezing spray. a chance of snow showers. waves
subsiding to 3 to 5 feet occasionally to 7 feet, then building to
4 to 7 feet occasionally to 9 feet. 
.wednesday...south winds 20 to 30 knots diminishing to 15 to
25 knots. freezing spray. a chance of snow showers. waves
subsiding to 3 to 5 feet occasionally to 7 feet, then building to
5 to 8 feet occasionally to 10 feet. 

$$

fzus63 kmqt 140201
glfls 
expires:202603140800;;631769

open lake forecast for lake superior
national weather service marquette mi
1000 pm edt fri mar 13 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...

a weakening 29.4 inch low moves across southeast ontario tonight, 
reaching new england at 29.6 inches by saturday morning. a 30.2 inch 
ridge then extends over lake superior from central canada on 
saturday. a 29.2 inch low developing over the central plains 
saturday night tracks through lower michigan sunday night to 
northern lake huron at 28.9 inches by monday morning before lifting 
into canada monday evening. high pressure of around 30.4 inches then 
overspreads the northern plains on monday and moves over lake 
superior at 30.1 inches by tuesday. a weakening clipper low around 
29.7 inches then moves over northern ontario late wednesday.



lsz162-140800-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
1000 pm edt fri mar 13 2026 /900 pm cdt fri mar 13 2026/

...gale watch in effect from sunday morning through late monday
night...

.rest of tonight...north winds 10 to 20 knots becoming northwest
5 to 15 knots late. waves 3 to 5 feet occasionally to 7 feet
subsiding to calm to 2 feet. 
.saturday...west winds 5 to 15 knots backing south late. waves
calm to 2 feet. 
.saturday night...east winds 10 to 20 knots increasing to
30 knots with a few gale force gusts to 35 knots possible late. a
chance of snow. waves building to 4 to 7 feet occasionally to
9 feet. 
.sunday...northeast gales to 45 knots. snow likely. freezing
spray by mid afternoon. waves building to 12 to 17 feet
occasionally to 21 feet. 
.sunday night...north gales to 45 knots. heavy freezing spray. a
chance of snow. waves 12 to 17 feet occasionally to 21 feet. 
.monday...north gales to 45 knots. heavy freezing spray. waves
subsiding to 8 to 11 feet occasionally to 14 feet. 
.monday night...north gales to 40 knots diminishing to 20 to
30 knots after midnight. heavy freezing spray through midnight.
waves subsiding to 3 to 5 feet occasionally to 7 feet. 
.tuesday...southwest winds 15 to 25 knots becoming south 10 to
20 knots. a chance of snow showers. waves subsiding to calm to
2 feet, then building to 3 to 5 feet occasionally to 7 feet. 
.wednesday...southwest winds 10 to 20 knots veering west. waves
subsiding to calm to 2 feet. 

$$

fzus63 kmqt 140201
glfls 
expires:202603140800;;631770

open lake forecast for lake superior
national weather service marquette mi
1000 pm edt fri mar 13 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...

a weakening 29.4 inch low moves across southeast ontario tonight, 
reaching new england at 29.6 inches by saturday morning. a 30.2 inch 
ridge then extends over lake superior from central canada on 
saturday. a 29.2 inch low developing over the central plains 
saturday night tracks through lower michigan sunday night to 
northern lake huron at 28.9 inches by monday morning before lifting 
into canada monday evening. high pressure of around 30.4 inches then 
overspreads the northern plains on monday and moves over lake 
superior at 30.1 inches by tuesday. a weakening clipper low around 
29.7 inches then moves over northern ontario late wednesday.



lsz263-140800-
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 fri mar 13 2026

...gale watch in effect from sunday morning through sunday
evening...
...storm watch in effect from sunday evening through monday
evening...

.rest of tonight...north winds 15 to 25 knots diminishing to 5 to
15 knots. waves 4 to 7 feet occasionally to 9 feet subsiding to
1 to 3 feet. 
.saturday...west winds 5 to 15 knots backing southwest in the
afternoon. waves subsiding to calm to 2 feet. 
.saturday night...southeast winds 5 to 15 knots increasing to
10 to 20 knots after midnight, then becoming east 20 to 30 knots
late. a chance of snow. waves building to 3 to 5 feet
occasionally to 7 feet. 
.sunday...northeast gales to 45 knots. freezing spray. snow
likely. waves building to 12 to 17 feet occasionally to 21 feet. 
.sunday night...north gales to 45 knots increasing to storm force
winds to 55 knots after midnight. heavy freezing spray. snow
likely through midnight. a chance of snow after midnight. waves
building to 17 to 22 feet occasionally to 28 feet. 
.monday...north storm force winds to 60 knots. heavy freezing
spray. a chance of snow. waves subsiding to 15 to 20 feet
occasionally to 25 feet. 
.monday night...north gales to 45 knots. heavy freezing spray.
waves subsiding to 7 to 10 feet occasionally to 13 feet. 
.tuesday...northwest winds 20 to 30 knots becoming south 15 to
25 knots. a chance of snow showers. waves subsiding to calm to
2 feet, then building to 3 to 6 feet occasionally to 8 feet. 
.wednesday...southwest winds 15 to 25 knots becoming west 10 to
20 knots. waves subsiding to 1 to 3 feet, then building to 3 to
5 feet occasionally to 7 feet. 

$$