fzus61 kbuf 170204
glflo 
expires:202603170900;;817055

open lake forecast for lake ontario
national weather service buffalo ny
1004 pm edt mon mar 16 2026

for waters beyond five nautical miles of shore on lake ontario

waves are the significant wave height - the average of the highest
1/3 of the wave spectrum. occasional wave height is the average of
the highest 1/10 of the wave spectrum.

.synopsis...a 29.1 inch surface low over central michigan this late 
morning will track northeastward west of the lake this 
afternoon, before pushing northeastward across quebec through 
tuesday. this low will sweep a strong cold front across the lake 
late this afternoon, with a 30.4 inch high building across the great 
lakes and ohio valley tuesday. the high will then shift east of the 
lake wednesday and reach the east coast by wednesday evening. a 30.2 
inch high will move into the great lakes region thursday. a 29.8 
inch low will move from james bay to the canadian maritimes friday. 
this may result in a cold front crossing the lake through friday.


loz062-170900-
lake ontario open waters from the niagara river to hamlin beach-
1004 pm edt mon mar 16 2026

...gale warning in effect through tuesday morning...

.overnight...southwest gales to 35 knots becoming west to
40 knots. snow, then a chance of snow showers late. waves 10 to
14 feet building to 12 to 16 feet. waves occasionally around
20 feet. 
.tuesday...west gales to 40 knots diminishing to 30 knots. lake
effect snow showers likely in the morning, then a chance of snow
showers in the afternoon. waves 12 to 16 feet subsiding to 10 to
14 feet. waves occasionally around 20 feet. 
.tuesday night...west winds 15 to 25 knots diminishing to 10 to
15 knots. snow showers likely in the evening. waves 7 to 10 feet
subsiding to 2 to 4 feet. waves occasionally around 13 feet. 
.wednesday...west winds 10 to 15 knots becoming south. waves 1 to
3 feet. 
.wednesday night...south winds 10 to 15 knots. a chance of snow
showers in the evening, then a chance of snow and rain showers
overnight. waves 1 to 3 feet. 
.thursday...southwest winds 10 to 15 knots becoming west. a
chance of rain showers during the day, then a chance of rain and
snow showers thursday night. waves 1 to 3 feet. 
.friday...west winds 10 to 15 knots becoming northeast 15 to
20 knots. a chance of rain and snow showers. waves 2 to 3 feet
building to 3 to 5 feet. 
.saturday...northeast winds 15 to 25 knots becoming west to
30 knots. a chance of rain and snow showers. waves 5 to 8 feet.
waves occasionally around 10 feet. 

$$

fzus61 kbuf 170204
glflo 
expires:202603170900;;817056

open lake forecast for lake ontario
national weather service buffalo ny
1004 pm edt mon mar 16 2026

for waters beyond five nautical miles of shore on lake ontario

waves are the significant wave height - the average of the highest
1/3 of the wave spectrum. occasional wave height is the average of
the highest 1/10 of the wave spectrum.

.synopsis...a 29.1 inch surface low over central michigan this late 
morning will track northeastward west of the lake this 
afternoon, before pushing northeastward across quebec through 
tuesday. this low will sweep a strong cold front across the lake 
late this afternoon, with a 30.4 inch high building across the great 
lakes and ohio valley tuesday. the high will then shift east of the 
lake wednesday and reach the east coast by wednesday evening. a 30.2 
inch high will move into the great lakes region thursday. a 29.8 
inch low will move from james bay to the canadian maritimes friday. 
this may result in a cold front crossing the lake through friday.


loz063>065-170900-
lake ontario open waters from hamlin beach to the saint lawrence
river-
1004 pm edt mon mar 16 2026

...gale warning in effect through tuesday evening...

.overnight...west winds to 30 knots becoming southwest and
increasing to 40 knot gales. snow, then a chance of snow showers
late. visibility one quarter mile or less at times late. waves
8 to 11 feet building to 13 to 17 feet. waves occasionally around
22 feet. 
.tuesday...west gales to 40 knots diminishing to 30 knots in the
afternoon. lake effect snow showers. visibility one quarter mile
or less at times in the morning. waves 15 to 20 feet subsiding to
12 to 16 feet. waves occasionally around 26 feet. 
.tuesday night...west winds to 30 knots becoming northwest and
diminishing to 15 to 20 knots. lake effect snow showers in the
evening, then a chance of lake effect snow showers overnight.
waves 10 to 14 feet subsiding to 4 to 7 feet. waves occasionally
around 18 feet. 
.wednesday...northwest winds 5 to 10 knots becoming south. snow
showers likely. waves 2 to 4 feet subsiding to 1 foot or less. 
.wednesday night...southeast winds 5 to 15 knots becoming south
15 to 20 knots. waves 2 feet or less building to 2 to 4 feet. 
.thursday...south winds 15 to 20 knots becoming west 10 to
15 knots. a chance of rain showers during the day, then a chance
of rain and snow showers thursday night. waves 2 to 4 feet
building to 3 to 5 feet. 
.friday...west winds 15 to 25 knots becoming north. a chance of
rain and snow showers. waves 3 to 5 feet building to 3 to 6 feet.
.saturday...northeast winds to 30 knots becoming west. a chance
of rain and snow showers. waves 5 to 8 feet building to 6 to
9 feet. waves occasionally around 11 feet. 

$$

fzus61 kcle 170131
glfle 
expires:202603170830;;816333

open lake forecast for lake erie
national weather service cleveland oh
931 pm edt mon mar 16 2026

for waters beyond five nautical miles of shore on lake erie

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 trough averaging 29.90 inches lingers over lake erie tonight. on
tuesday through tuesday night, a ridge averaging 30.30 inches builds
from the upper midwest. the ridge begins to exit slowly eastward 
from the region wednesday through wednesday night and allows a 
warm front to sweep northward across lake erie. during thursday 
through saturday, the ridge should continue to exit, albeit 
generally southeastward, as a cold front approaches from the 
northwest. by friday and saturday, the front should waver in
vicinity of lake erie in response to weak frontal lows, averaging
29.70 inches, and moving generally eastward across the southern
great lakes region.


lez162>164-170830-
detroit river lt. to maumee bay oh to reno beach oh beyond 5nm
offshoreline to us-canadian border-
reno beach to the islands oh beyond 5nm off shoreline to us-
canadian border-
the islands to vermilion oh beyond 5 nm off shoreline to us-
canadian border-
931 pm edt mon mar 16 2026

...gale warning in effect until 8 am edt tuesday...
...low water advisory in effect until 8 am edt tuesday...

.rest of tonight...west gales to 35 knots. a chance of snow
showers late this evening. a slight chance of snow showers late.
waves 6 to 10 feet. waves occasionally around 13 feet. 
.tuesday...west winds to 30 knots diminishing to 15 to 20 knots.
a slight chance of snow showers early, then a chance of snow
showers from late morning on. waves 4 to 7 feet subsiding to 1 to
3 feet. waves occasionally around 9 feet. 
.tuesday night...west winds 15 to 20 knots becoming southwest
10 to 15 knots. waves 1 to 3 feet. 
.wednesday...south winds 10 to 15 knots. waves 1 to 3 feet. 
.wednesday night...south winds 10 to 15 knots becoming southwest.
waves 1 to 2 feet. 
.thursday...southwest winds 5 to 10 knots becoming west. a chance
of rain during the day. waves 2 feet or less. 
.friday...southwest winds 10 to 15 knots becoming north 15 to
20 knots. a chance of rain during the day. waves 1 foot or less
building to 1 to 3 feet. 
.saturday...east winds 15 to 20 knots becoming west. waves 2 to
4 feet subsiding to 1 to 3 feet. 

$$

fzus61 kcle 170131
glfle 
expires:202603170830;;816334

open lake forecast for lake erie
national weather service cleveland oh
931 pm edt mon mar 16 2026

for waters beyond five nautical miles of shore on lake erie

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 trough averaging 29.90 inches lingers over lake erie tonight. on
tuesday through tuesday night, a ridge averaging 30.30 inches builds
from the upper midwest. the ridge begins to exit slowly eastward 
from the region wednesday through wednesday night and allows a 
warm front to sweep northward across lake erie. during thursday 
through saturday, the ridge should continue to exit, albeit 
generally southeastward, as a cold front approaches from the 
northwest. by friday and saturday, the front should waver in
vicinity of lake erie in response to weak frontal lows, averaging
29.70 inches, and moving generally eastward across the southern
great lakes region.


lez165>167-170830-
vermilion to avon point oh beyond 5 nm off shoreline to us-
canadian border-
avon point to willowick oh beyond 5 nm off shoreline to us-
canadian border-willowick to geneva-on-the-
lake oh beyond 5nm off shoreline to us-canadian border-
931 pm edt mon mar 16 2026

...gale warning in effect until 8 am edt tuesday...

.rest of tonight...west gales to 35 knots increasing to 40 knots.
a chance of snow showers, then a slight chance of snow showers
late. waves 10 to 14 feet. waves occasionally around 18 feet. 
.tuesday...west winds to 30 knots diminishing to 15 to 20 knots.
a chance of snow showers. waves 10 to 13 feet subsiding to 3 to
5 feet. waves occasionally around 16 feet. 
.tuesday night...west winds 15 to 20 knots becoming southwest
10 to 15 knots. a chance of snow showers. waves 3 to 5 feet
subsiding to 2 to 4 feet. 
.wednesday...southwest winds 10 to 15 knots becoming south 15 to
20 knots. waves 1 to 3 feet. 
.wednesday night...south winds 10 to 15 knots becoming southwest.
waves 1 to 3 feet. 
.thursday...southwest winds 5 to 15 knots. a chance of rain
during the day. waves 1 to 3 feet subsiding to 1 foot or less. 
.friday...southwest winds 5 to 15 knots becoming north 15 to
20 knots. a chance of rain. waves 1 to 3 feet building to 2 to
4 feet. 
.saturday...northeast winds 15 to 25 knots becoming west. waves
2 to 4 feet building to 3 to 5 feet. 

$$

fzus61 kcle 170131
glfle 
expires:202603170830;;816335

open lake forecast for lake erie
national weather service cleveland oh
931 pm edt mon mar 16 2026

for waters beyond five nautical miles of shore on lake erie

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 trough averaging 29.90 inches lingers over lake erie tonight. on
tuesday through tuesday night, a ridge averaging 30.30 inches builds
from the upper midwest. the ridge begins to exit slowly eastward 
from the region wednesday through wednesday night and allows a 
warm front to sweep northward across lake erie. during thursday 
through saturday, the ridge should continue to exit, albeit 
generally southeastward, as a cold front approaches from the 
northwest. by friday and saturday, the front should waver in
vicinity of lake erie in response to weak frontal lows, averaging
29.70 inches, and moving generally eastward across the southern
great lakes region.


lez061-168-169-170830-
ripley to buffalo ny extending from 5nm off shoreline to us-
canadian border-geneva-on-the-
lake to conneaut oh beyond 5 nm off shoreline to us-
canadian border-
conneaut oh to ripley ny beyond 5 nm off shoreline to us-
canadian border-
931 pm edt mon mar 16 2026

...gale warning in effect until 8 am edt tuesday...

.rest of tonight...west gales to 35 knots increasing to 40 knots.
snow showers late this evening, then a chance of snow showers
after midnight. waves 11 to 16 feet. waves occasionally around
20 feet. 
.tuesday...west gales to 35 knots diminishing to 30 knots. a
chance of snow showers. waves 11 to 15 feet subsiding to 5 to
8 feet. waves occasionally around 19 feet. 
.tuesday night...west winds 15 to 20 knots diminishing to 10 to
15 knots. a chance of snow showers. waves 3 to 6 feet subsiding
to 2 to 4 feet. 
.wednesday...southwest winds 5 to 15 knots becoming south. a
chance of snow showers in the morning. waves 1 to 3 feet. 
.wednesday night...south winds 5 to 15 knots. waves 2 feet or
less. 
.thursday...southwest winds 5 to 10 knots. waves 2 feet or less. 
.friday...southwest winds 5 to 15 knots becoming north. a chance
of rain and snow during the day, then a chance of rain friday
night. waves 2 feet or less. 
.saturday...northeast winds 10 to 15 knots becoming west 15 to
20 knots. waves 1 to 3 feet building to 2 to 4 feet. 

$$

fzus63 kdtx 170139
glfsc 
expires:202603170945;;816446

lake st clair forecast
national weather service detroit/pontiac mi
939 pm edt mon mar 16 2026

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...northwest winds gusting to gales continues tonight
behind a strong low pressure system. high pressure, 30.40 inches,
tracks through the ohio valley tomorrow, with the northern
extension reaching the central great lakes tomorrow evening,
supporting light winds. moderate southwest winds then return for
wednesday.


lcz460-170945-
lake st clair-
939 pm edt mon mar 16 2026

...gale warning in effect through tuesday morning...

.rest of tonight...west winds to 30 knots diminishing to 20 to 25
knots early in the morning. gusts to 40 knot gales. mostly cloudy.
scattered light snow showers this evening. waves 3 to 5 feet. waves
occasionally around 7 feet.
.tuesday...west winds 20 to 25 knots with gusts to 30 knots
diminishing to 10 to 15 knots. mostly cloudy. waves 2 to 4 feet
subsiding to 1 to 3 feet in the late morning and afternoon.
.tuesday night...west winds 10 to 15 knots becoming southwest 5 to
10 knots after midnight. partly cloudy. waves 2 feet or less.
.wednesday...south winds 10 to 15 knots increasing to 15 to 20 knots
in the late morning and afternoon. mostly cloudy. waves 1 to 3 feet.
.wednesday night...south winds 10 to 15 knots becoming southwest 5
to 10 knots after midnight. mostly cloudy. waves 2 feet or less.
.thursday...southwest winds 5 to 10 knots. partly sunny with a
chance of light rain...then mostly cloudy in the evening. waves 2
feet or less.
.friday...north winds 10 to 15 knots. mostly cloudy with a chance of
light rain and snow. waves 2 feet or less.
.saturday...west winds 15 to 20 knots. mostly cloudy. waves 1 to 3
feet.

$$

fzus63 kdtx 170137
glflh 
expires:202603170945;;816435

open lake forecast for lake huron
national weather service detroit/pontiac mi
937 pm edt mon mar 16 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...northwest winds gusting to gales continues tonight
behind a strong low pressure system. high pressure, 30.40 inches,
tracks through the ohio valley tomorrow, with the northern
extension reaching the central great lakes tomorrow evening,
supporting light winds. moderate southwest winds then return for
wednesday.


lhz463-464-170945-
lake huron from harbor beach to port sanilac beyond 5nm off shore-
lake huron from port sanilac to port huron beyond 5nm off shore-
937 pm edt mon mar 16 2026

...gale warning in effect through tuesday morning...
...heavy freezing spray warning in effect through tuesday
afternoon...

.rest of tonight...west winds to 30 knots increasing to 35 knot
gales after midnight. gusts to 40 knot gales. scattered snow
showers. heavy freezing spray. waves 10 to 14 feet building to
14 to 18 feet early in the morning. waves occasionally around
23 feet. 
.tuesday...northwest winds to 30 knots with gusts to 40 knot
gales decreasing to 15 to 20 knots. scattered snow showers in the
morning. heavy freezing spray. waves 10 to 14 feet subsiding to
6 to 9 feet late in the afternoon. waves occasionally around
18 feet. 
.tuesday night...west winds 10 to 15 knots. waves 3 to 5 feet
subsiding to 2 to 4 feet after midnight. 
.wednesday...south winds 10 to 15 knots increasing to 15 to
20 knots in the late morning and afternoon. waves 2 to 4 feet
building to 4 to 6 feet in the late morning and afternoon. waves
occasionally around 8 feet. 
.wednesday night...south winds 15 to 20 knots becoming southwest
10 to 15 knots after midnight. waves 3 to 5 feet. 
.thursday...southwest winds 10 to 15 knots decreasing to 5 to
10 knots late in the morning...then veering to the north late in
the evening. waves 1 to 3 feet. 
.friday...southwest winds 10 to 15 knots backing to the south in
the late morning and early afternoon...then backing to the east
early in the evening becoming north 15 to 20 knots by midnight. a
chance of rain. waves 2 to 4 feet building to 4 to 6 feet by
midnight. waves occasionally around 8 feet. 
.saturday...northeast winds 20 to 25 knots veering to the east in
the late morning and early afternoon...then becoming south 15 to
20 knots early in the evening becoming west 20 to 25 knots by
midnight. waves 5 to 7 feet. waves occasionally around 10 feet. 


$$

fzus63 kdtx 170137
glflh 
expires:202603170945;;816434

open lake forecast for lake huron
national weather service detroit/pontiac mi
937 pm edt mon mar 16 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...northwest winds gusting to gales continues tonight
behind a strong low pressure system. high pressure, 30.40 inches,
tracks through the ohio valley tomorrow, with the northern
extension reaching the central great lakes tomorrow evening,
supporting light winds. moderate southwest winds then return for
wednesday.


lhz362-363-462-170945-
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-
lake huron from port austin to harbor beach beyond 5nm off shore-
937 pm edt mon mar 16 2026

...gale warning in effect through tuesday morning...
...heavy freezing spray warning in effect through tuesday
afternoon...

.rest of tonight...northwest at 35 knot gales with gusts to
40 knot gales. numerous snow showers. heavy freezing spray. waves
14 to 18 feet. waves occasionally around 23 feet. 
.tuesday...northwest at 35 knot gales with gusts to 40 knot gales
decreasing to 15 to 20 knots. heavy freezing spray. waves 12 to
16 feet subsiding to 8 to 12 feet in the afternoon. waves
occasionally around 20 feet. 
.tuesday night...west winds 10 to 15 knots backing to the
southwest after midnight. waves 4 to 6 feet. waves occasionally
around 8 feet. 
.wednesday...south winds 15 to 20 knots. freezing spray in the
afternoon. waves 3 to 5 feet building to 6 to 9 feet in the late
morning and afternoon. waves occasionally around 12 feet. 
.wednesday night...south winds 15 to 20 knots becoming southwest
10 to 15 knots after midnight. waves 5 to 7 feet. waves
occasionally around 10 feet. 
.thursday...southwest winds 10 to 15 knots veering to the west
late in the afternoon. a chance of rain and snow late in the
evening. waves 2 to 4 feet. 
.friday...west winds 10 to 15 knots veering to the east in the
late morning and early afternoon...then increasing to 15 to
20 knots early in the evening becoming northeast 20 to 25 knots
by midnight. a chance of rain and snow. waves 3 to 5 feet
building to 6 to 9 feet by midnight. waves occasionally around
12 feet. 
.saturday...northeast winds 20 to 25 knots veering to the east
with gusts to around 30 knots in the late morning and early
afternoon...then becoming southeast 15 to 20 knots early in the
evening becoming west to 30 knots by midnight. waves 8 to
12 feet. waves occasionally around 15 feet. 


$$

fzus63 kdtx 170137
glflh 
expires:202603170945;;816433

open lake forecast for lake huron
national weather service detroit/pontiac mi
937 pm edt mon mar 16 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...northwest winds gusting to gales continues tonight
behind a strong low pressure system. high pressure, 30.40 inches,
tracks through the ohio valley tomorrow, with the northern
extension reaching the central great lakes tomorrow evening,
supporting light winds. moderate southwest winds then return for
wednesday.


lhz361-170945-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
937 pm edt mon mar 16 2026

...gale warning in effect through tuesday morning...
...heavy freezing spray warning in effect through tuesday
afternoon...

.rest of tonight...northwest winds to 30 knots with gusts to
40 knot gales. scattered snow showers. heavy freezing spray.
waves 10 to 14 feet. waves occasionally around 18 feet. 
.tuesday...northwest winds to 30 knots with gusts to 35 knot
gales decreasing to 15 to 20 knots. scattered snow showers in the
morning. heavy freezing spray in the morning. waves 8 to 12 feet
subsiding to 4 to 6 feet late in the afternoon. waves
occasionally around 15 feet. 
.tuesday night...west winds 10 to 15 knots decreasing to 5 to
10 knots by midnight...then becoming southwest 10 to 15 knots
after midnight. waves 3 to 5 feet subsiding to 1 to 3 feet after
midnight. 
.wednesday...south winds 15 to 20 knots. a chance of snow. waves
4 to 6 feet building to 5 to 7 feet early in the afternoon. waves
occasionally around 10 feet. 
.wednesday night...south winds 10 to 15 knots veering to the
southwest after midnight. a chance of snow in the evening. waves
4 to 6 feet. waves occasionally around 8 feet. 
.thursday...west winds 10 to 15 knots veering to the northwest
late in the evening. a chance of snow and rain late in the
evening. waves 2 to 4 feet subsiding to 1 to 3 feet. 
.friday...southwest winds 10 to 15 knots backing to the east
until early evening...then becoming northeast 20 to 25 knots by
midnight. a chance of snow and rain...then a chance of snow by
midnight. waves 2 to 4 feet building to 5 to 7 feet. waves
occasionally around 10 feet. 
.saturday...east winds 20 to 25 knots becoming southeast 15 to
20 knots early in the evening...then becoming west 20 to 25 knots
with gusts to around 30 knots by midnight. a chance of snow.
waves 8 to 12 feet. waves occasionally around 15 feet. 

wave heights are for ice free areas.

$$

fzus63 kmqt 170201
glfls 
expires:202603170800;;816924

open lake forecast for lake superior
national weather service marquette mi
1000 pm edt mon mar 16 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...

lake superior will be between a 29.2 inch low departing into quebec 
and a 30.3 inch high over the great plains tonight. the high shifts 
south of the great lakes basin on tuesday, extending weak 30.0 inch 
ridging over the lake. a 29.7 inch trough over the canadian prairie 
wednesday morning will begin to push towards the lake on wednesday, 
weakening to 29.8 inches over northwest ontario wednesday night. 
weak ridging of around 30.1 inches will build over the lake on 
thursday ahead of the next clipper low approaching the region on 
friday at around 29.7 inches.



lsz264-170800-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
1000 pm edt mon mar 16 2026

...storm warning in effect until 2 am edt tuesday...
...heavy freezing spray warning in effect through tuesday
afternoon...
...gale warning in effect from 2 am to 8 am edt tuesday...

.rest of tonight...north gales to 45 knots. heavy freezing spray.
a chance of snow showers. waves 15 to 20 feet occasionally to
25 feet subsiding to 8 to 11 feet occasionally to 14 feet. 
.tuesday...north winds 20 to 30 knots becoming northwest 10 to
20 knots in the afternoon, then becoming west 5 to 15 knots late.
heavy freezing spray through early afternoon. waves subsiding to
calm to 2 feet. 
.tuesday night...southwest winds 5 to 15 knots becoming south
10 to 20 knots after midnight. waves building to 3 to 5 feet
occasionally to 7 feet. 
.wednesday...southwest winds 10 to 20 knots. waves 3 to 5 feet
occasionally to 7 feet. 
.wednesday night...west winds 10 to 20 knots becoming northwest
5 to 15 knots after midnight. a slight chance of rain showers. a
slight chance of snow showers after midnight. waves subsiding to
1 to 3 feet. 
.thursday...north winds 5 to 15 knots backing northwest by mid
afternoon. waves subsiding to calm to 2 feet. 
.thursday night...south winds 5 to 15 knots becoming southeast
10 to 20 knots after midnight. a chance of snow showers, possibly
mixed with rain. waves building to 3 to 5 feet occasionally to
7 feet. 
.friday...east winds 10 to 20 knots becoming southeast gales to
35 knots. a chance of rain showers. a chance of snow showers.
waves building to 3 to 6 feet occasionally to 8 feet. 
.saturday...southeast gales to 35 knots backing north. waves
subsiding to 4 to 7 feet occasionally to 9 feet, then building to
9 to 12 feet occasionally to 15 feet. 

$$

fzus63 kmqt 170201
glfls 
expires:202603170800;;816925

open lake forecast for lake superior
national weather service marquette mi
1000 pm edt mon mar 16 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...

lake superior will be between a 29.2 inch low departing into quebec 
and a 30.3 inch high over the great plains tonight. the high shifts 
south of the great lakes basin on tuesday, extending weak 30.0 inch 
ridging over the lake. a 29.7 inch trough over the canadian prairie 
wednesday morning will begin to push towards the lake on wednesday, 
weakening to 29.8 inches over northwest ontario wednesday night. 
weak ridging of around 30.1 inches will build over the lake on 
thursday ahead of the next clipper low approaching the region on 
friday at around 29.7 inches.



lsz265-170800-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
1000 pm edt mon mar 16 2026

...storm warning in effect until 2 am edt tuesday...
...heavy freezing spray warning in effect through tuesday
afternoon...
...gale warning in effect from 2 am to 8 am edt tuesday...

.rest of tonight...north storm force winds to 50 knots
diminishing to gales to 45 knots after midnight. heavy freezing
spray. snow showers likely by midnight. a chance of snow showers
after midnight. waves 17 to 22 feet occasionally to 28 feet
subsiding to 10 to 14 feet occasionally to 18 feet. 
.tuesday...northwest winds 20 to 30 knots diminishing to 15 to
25 knots in the afternoon, then becoming west 10 to 20 knots
late. heavy freezing spray through early afternoon. a slight
chance of snow showers through early afternoon. waves subsiding
to 1 to 3 feet. 
.tuesday night...south winds 10 to 20 knots increasing to 20 to
30 knots. waves subsiding to calm to 2 feet, then building to
2 to 4 feet. 
.wednesday...southwest winds 20 to 30 knots diminishing to 15 to
25 knots by mid afternoon. waves subsiding to calm to 2 feet. 
.wednesday night...west winds 10 to 20 knots. a slight chance of
rain showers. a slight chance of snow showers after midnight.
waves calm to 2 feet. 
.thursday...northwest winds 10 to 20 knots. waves calm to 2 feet.
.thursday night...south winds 10 to 20 knots increasing to 15 to
25 knots after midnight. a chance of rain and snow showers. waves
building to 2 to 4 feet. 
.friday...northeast winds 15 to 25 knots becoming southeast gales
to 35 knots. a chance of rain showers. a chance of snow showers.
waves building to 8 to 11 feet occasionally to 14 feet. 
.saturday...south gales to 35 knots veering northwest. a chance
of snow showers. waves building to 9 to 12 feet occasionally to
15 feet, then subsiding to 3 to 6 feet occasionally to 8 feet. 

$$

fzus63 kmqt 170201
glfls 
expires:202603170800;;816926

open lake forecast for lake superior
national weather service marquette mi
1000 pm edt mon mar 16 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...

lake superior will be between a 29.2 inch low departing into quebec 
and a 30.3 inch high over the great plains tonight. the high shifts 
south of the great lakes basin on tuesday, extending weak 30.0 inch 
ridging over the lake. a 29.7 inch trough over the canadian prairie 
wednesday morning will begin to push towards the lake on wednesday, 
weakening to 29.8 inches over northwest ontario wednesday night. 
weak ridging of around 30.1 inches will build over the lake on 
thursday ahead of the next clipper low approaching the region on 
friday at around 29.7 inches.



lsz266-170800-
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 mon mar 16 2026

...storm warning in effect until 2 am edt tuesday...
...heavy freezing spray warning in effect through tuesday
afternoon...
...gale warning in effect from 2 am to 8 am edt tuesday...

.rest of tonight...north storm force winds to 50 knots
diminishing to gales to 40 knots late. heavy freezing spray. snow
showers likely by midnight. a chance of snow showers after
midnight. waves 20 to 25 feet occasionally to 31 feet subsiding
to 12 to 17 feet occasionally to 21 feet. 
.tuesday...north gales to 35 knots becoming northwest 15 to
25 knots in the afternoon, then diminishing to 10 to 20 knots
late. heavy freezing spray. a chance of snow showers. waves
subsiding to 3 to 5 feet occasionally to 7 feet. 
.tuesday night...southwest winds 10 to 20 knots becoming south
15 to 25 knots after midnight, then increasing to 20 to 30 knots
late. freezing spray after midnight. waves subsiding to 1 to
3 feet, then building to 4 to 7 feet occasionally to 9 feet. 
.wednesday...south winds 20 to 30 knots becoming southwest 15 to
25 knots by mid afternoon. freezing spray through early
afternoon. a slight chance of snow showers. waves building to
5 to 8 feet occasionally to 10 feet, then subsiding to 3 to
5 feet occasionally to 7 feet. 
.wednesday night...southwest winds 15 to 25 knots veering west
after midnight. a slight chance of rain and snow showers. waves
subsiding to 2 to 4 feet. 
.thursday...northwest winds 15 to 25 knots diminishing to 10 to
20 knots by mid afternoon. waves subsiding to 1 to 3 feet. 
.thursday night...south winds 10 to 20 knots increasing to 15 to
25 knots after midnight. a chance of snow showers. a chance of
rain showers after midnight. waves subsiding to calm to 2 feet,
then building to 3 to 6 feet occasionally to 8 feet. 
.friday...east winds 20 to 30 knots becoming southeast gales to
35 knots. a chance of rain showers. a chance of snow showers.
waves building to 4 to 7 feet occasionally to 9 feet, then
subsiding to 3 to 6 feet occasionally to 8 feet. 
.saturday...southeast gales to 40 knots veering northwest. a
chance of snow showers. waves subsiding to 6 to 9 feet
occasionally to 11 feet, then building to 11 to 15 feet
occasionally to 19 feet. 

$$

fzus63 kmqt 170201
glfls 
expires:202603170800;;816927

open lake forecast for lake superior
national weather service marquette mi
1000 pm edt mon mar 16 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...

lake superior will be between a 29.2 inch low departing into quebec 
and a 30.3 inch high over the great plains tonight. the high shifts 
south of the great lakes basin on tuesday, extending weak 30.0 inch 
ridging over the lake. a 29.7 inch trough over the canadian prairie 
wednesday morning will begin to push towards the lake on wednesday, 
weakening to 29.8 inches over northwest ontario wednesday night. 
weak ridging of around 30.1 inches will build over the lake on 
thursday ahead of the next clipper low approaching the region on 
friday at around 29.7 inches.



lsz267-170800-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
1000 pm edt mon mar 16 2026

...storm warning in effect until 2 am edt tuesday...
...heavy freezing spray warning in effect through tuesday
afternoon...
...gale warning in effect from 2 am to 8 am edt tuesday...

.rest of tonight...north storm force winds to 50 knots
diminishing to gales to 40 knots late. heavy freezing spray. a
chance of snow showers. waves 15 to 20 feet occasionally to
25 feet subsiding to 10 to 14 feet occasionally to 18 feet. 
.tuesday...north winds 20 to 30 knots becoming northwest 15 to
25 knots in the afternoon, then diminishing to 10 to 20 knots
late. heavy freezing spray through early afternoon. a chance of
snow showers. waves subsiding to 2 to 4 feet. 
.tuesday night...west winds 10 to 20 knots becoming south 15 to
25 knots after midnight. waves subsiding to 1 to 3 feet, then
building to 3 to 6 feet occasionally to 8 feet. 
.wednesday...south winds 20 to 30 knots. a chance of snow
showers. waves building to 4 to 7 feet occasionally to 9 feet,
then subsiding to 3 to 5 feet occasionally to 7 feet. 
.wednesday night...southwest winds 15 to 25 knots veering west
after midnight. a chance of snow showers, possibly mixed with
rain. waves subsiding to 2 to 4 feet. 
.thursday...northwest winds 10 to 20 knots. waves subsiding to
1 to 3 feet. 
.thursday night...west winds 10 to 20 knots backing south after
midnight. a chance of snow showers. waves subsiding to calm to
2 feet, then building to 2 to 4 feet. 
.friday...east winds 15 to 25 knots becoming southeast gales to
35 knots. a chance of snow showers. waves building to 3 to 5 feet
occasionally to 7 feet, then subsiding to 2 to 4 feet. 
.saturday...southeast gales to 35 knots veering northwest. a
chance of snow showers. waves building to 10 to 14 feet
occasionally to 18 feet. 

$$

fzus63 kmqt 170201
glfls 
expires:202603170800;;816922

open lake forecast for lake superior
national weather service marquette mi
1000 pm edt mon mar 16 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...

lake superior will be between a 29.2 inch low departing into quebec 
and a 30.3 inch high over the great plains tonight. the high shifts 
south of the great lakes basin on tuesday, extending weak 30.0 inch 
ridging over the lake. a 29.7 inch trough over the canadian prairie 
wednesday morning will begin to push towards the lake on wednesday, 
weakening to 29.8 inches over northwest ontario wednesday night. 
weak ridging of around 30.1 inches will build over the lake on 
thursday ahead of the next clipper low approaching the region on 
friday at around 29.7 inches.



lsz162-170800-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
1000 pm edt mon mar 16 2026 /900 pm cdt mon mar 16 2026/

...heavy freezing spray warning in effect until 2 am edt /1 am
cdt/ tuesday...

.rest of tonight...north winds 20 to 30 knots diminishing to
15 to 25 knots late. heavy freezing spray by midnight. waves 5 to
8 feet occasionally to 10 feet subsiding to 2 to 4 feet. 
.tuesday...northwest winds 5 to 15 knots backing west in the
afternoon, then becoming southwest 10 to 20 knots late. a slight
chance of snow showers by mid afternoon. waves subsiding to calm
to 2 feet. 
.tuesday night...south winds 10 to 20 knots increasing to 15 to
25 knots after midnight, then veering southwest late. a chance of
snow showers. waves building to 3 to 5 feet occasionally to
7 feet. 
.wednesday...southwest winds 15 to 25 knots diminishing to 10 to
20 knots by mid afternoon. waves subsiding to 1 to 3 feet. 
.wednesday night...southwest winds 10 to 20 knots becoming west
5 to 15 knots after midnight. a slight chance of snow showers
through midnight. a slight chance of rain showers. waves
subsiding to calm to 2 feet. 
.thursday...north winds 5 to 15 knots veering south by mid
afternoon. waves calm to 2 feet. 
.thursday night...south winds 5 to 15 knots becoming northeast
10 to 20 knots after midnight. waves building to 1 to 3 feet. 
.friday...east winds 10 to 20 knots increasing to 15 to 25 knots.
a chance of snow showers, possibly mixed with rain. waves
building to 4 to 7 feet occasionally to 9 feet. 
.saturday...northwest winds 15 to 25 knots becoming north 20 to
30 knots. a chance of snow showers, possibly mixed with rain.
waves building to 5 to 8 feet occasionally to 10 feet, then
subsiding to 2 to 4 feet. 

$$

fzus63 kmqt 170201
glfls 
expires:202603170800;;816923

open lake forecast for lake superior
national weather service marquette mi
1000 pm edt mon mar 16 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...

lake superior will be between a 29.2 inch low departing into quebec 
and a 30.3 inch high over the great plains tonight. the high shifts 
south of the great lakes basin on tuesday, extending weak 30.0 inch 
ridging over the lake. a 29.7 inch trough over the canadian prairie 
wednesday morning will begin to push towards the lake on wednesday, 
weakening to 29.8 inches over northwest ontario wednesday night. 
weak ridging of around 30.1 inches will build over the lake on 
thursday ahead of the next clipper low approaching the region on 
friday at around 29.7 inches.



lsz263-170800-
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 mon mar 16 2026

...gale warning in effect until 2 am edt tuesday...
...heavy freezing spray warning in effect through tuesday
afternoon...

.rest of tonight...north gales to 40 knots diminishing to 20 to
30 knots late. heavy freezing spray. a slight chance of snow
showers. waves 10 to 14 feet occasionally to 18 feet subsiding to
5 to 8 feet occasionally to 10 feet. 
.tuesday...north winds 10 to 20 knots becoming northwest 5 to
15 knots in the afternoon, then backing southwest late. waves
subsiding to calm to 2 feet. 
.tuesday night...south winds 10 to 20 knots increasing to 15 to
25 knots after midnight. a slight chance of snow showers through
midnight. waves building to 3 to 5 feet occasionally to 7 feet. 
.wednesday...southwest winds 10 to 20 knots. waves subsiding to
2 to 4 feet. 
.wednesday night...west winds 5 to 15 knots. a slight chance of
rain and snow showers. waves subsiding to calm to 2 feet. 
.thursday...north winds 5 to 15 knots veering south by mid
afternoon. waves calm to 2 feet. 
.thursday night...south winds 5 to 15 knots increasing to 10 to
20 knots after midnight. waves building to 2 to 4 feet. 
.friday...east winds 10 to 20 knots increasing to 20 to 30 knots.
a chance of snow showers, possibly mixed with rain. waves
building to 7 to 10 feet occasionally to 13 feet. 
.saturday...northwest winds 20 to 30 knots becoming north gales
to 35 knots. a chance of snow showers, possibly mixed with rain.
waves subsiding to 3 to 6 feet occasionally to 8 feet, then
building to 6 to 9 feet occasionally to 11 feet. 

$$