fzus61 kbuf 201502
glflo 
expires:202602202200;;962408

open lake forecast for lake ontario
national weather service buffalo ny
1002 am est fri feb 20 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 29.3 inch low over northern illinois will move to the 
central great lakes today, then will weaken to 29.7 inches as it 
passes across lake ontario saturday. another 29.8 inch low will then 
deepen to 29.2 inches as it moves off the carolina coast and out to 
sea sunday and monday, with a 30.2 inch high then forecast to slide 
across the lower great lakes tuesday.


loz062-063-202200-
lake ontario open waters from the niagara river to sodus bay-
1002 am est fri feb 20 2026

.rest of today...east winds 15 to 25 knots becoming south. rain.
waves 5 to 8 feet. waves occasionally around 10 feet. 
.tonight...southwest winds 15 to 25 knots becoming west and
diminishing to 10 to 15 knots. a chance of rain early, then a
chance of rain and snow. a chance of snow and rain showers late.
waves 3 to 6 feet subsiding to 2 to 4 feet. 
.saturday...north winds 10 to 15 knots becoming east. a chance of
snow and rain showers in the morning, then a chance of snow
showers in the afternoon. waves 2 to 4 feet. 
.saturday night...east winds 10 to 15 knots. a chance of snow.
waves 1 to 3 feet. 
.sunday...east winds 10 to 15 knots becoming northeast. snow
likely. waves 1 to 3 feet. 
.monday...northeast winds 10 to 15 knots becoming northwest 15 to
20 knots. snow showers likely during the day, then a chance of
snow showers monday night. waves 2 to 4 feet building to 3 to
5 feet, then subsiding to 2 to 4 feet. 
.tuesday...northwest winds 5 to 15 knots becoming south 15 to
20 knots. a chance of snow showers tuesday night. waves 2 to
4 feet. 

$$

fzus61 kbuf 201502
glflo 
expires:202602202200;;962409

open lake forecast for lake ontario
national weather service buffalo ny
1002 am est fri feb 20 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 29.3 inch low over northern illinois will move to the 
central great lakes today, then will weaken to 29.7 inches as it 
passes across lake ontario saturday. another 29.8 inch low will then 
deepen to 29.2 inches as it moves off the carolina coast and out to 
sea sunday and monday, with a 30.2 inch high then forecast to slide 
across the lower great lakes tuesday.


loz064-065-202200-
lake ontario open waters from sodus bay to the saint lawrence
river-
1002 am est fri feb 20 2026

.rest of today...east winds 15 to 20 knots becoming southeast.
rain late this morning, then rain and sleet this afternoon. waves
2 to 4 feet building to 3 to 5 feet, then subsiding to 2 to
4 feet. 
.tonight...southwest winds 15 to 20 knots becoming west 10 to
15 knots. rain, snow and sleet in the evening, then a chance of
snow and rain after midnight. waves 1 to 3 feet building to 2 to
4 feet. 
.saturday...north winds 10 to 15 knots becoming northeast. a
chance of snow showers. waves 2 to 4 feet subsiding to 1 to
3 feet. 
.saturday night...northeast winds 5 to 15 knots becoming east. a
chance of snow overnight. waves 2 feet or less. 
.sunday...east winds 5 to 15 knots becoming northeast. snow
likely. waves 2 feet or less. 
.monday...north winds 10 to 15 knots increasing to 15 to
20 knots. a chance of snow showers. waves 1 to 3 feet building to
2 to 4 feet. 
.tuesday...northwest winds 5 to 15 knots becoming south 15 to
20 knots. a chance of snow showers tuesday night. waves 1 to
3 feet. 

$$

fzus61 kcle 201424
glfle 
expires:202602202115;;961325

open lake forecast for lake erie
national weather service cleveland oh
924 am est fri feb 20 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...
low pressure 29.30 inches over lake michigan will slowly move
northeast over the great lakes today. this low will extend a cold
front across the lake this afternoon. the low will dissipate into
a trough averaging 29.90 inches that will remain over the eastern
great lakes through monday. a ridge averaging 30.20 inches will
enter for tuesday.


lez061-166>169-202115-
ripley to buffalo ny extending from 5nm 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-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-
924 am est fri feb 20 2026

.rest of today...south winds 15 to 25 knots becoming southwest to
30 knots. a chance of rain showers late this morning, then a
slight chance of rain showers early this afternoon. a chance of
snow and rain showers late. the lake is mostly ice covered.
.tonight...southwest winds to 30 knots becoming west. a chance of
snow showers through the early overnight, then a chance of snow
showers with a slight chance of freezing rain late. 
.saturday...west winds 15 to 20 knots becoming southwest 10 to
15 knots. a chance of snow showers in the morning. 
.saturday night...southwest winds 5 to 10 knots becoming west. a
chance of snow showers overnight. 
.sunday...west winds 10 to 15 knots becoming northwest 15 to
20 knots. snow showers likely during the day, then a chance of
snow showers sunday night. 
.monday...northwest winds 15 to 25 knots. a chance of snow
showers during the day. 
.tuesday...northwest winds 5 to 10 knots becoming south and
increasing to 15 to 25 knots. a chance of snow tuesday night. 

waves omitted due to the lake being mostly ice covered.

$$

fzus61 kcle 201424
glfle 
expires:202602202115;;961323

open lake forecast for lake erie
national weather service cleveland oh
924 am est fri feb 20 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...
low pressure 29.30 inches over lake michigan will slowly move
northeast over the great lakes today. this low will extend a cold
front across the lake this afternoon. the low will dissipate into
a trough averaging 29.90 inches that will remain over the eastern
great lakes through monday. a ridge averaging 30.20 inches will
enter for tuesday.


lez162-163-202115-
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-
924 am est fri feb 20 2026

.rest of today...southwest winds to 30 knots becoming west. a
slight chance of rain showers early this afternoon. a slight
chance of rain and snow showers late. the lake is mostly ice
covered.
.tonight...west winds 15 to 25 knots. 
.saturday...west winds 15 to 20 knots diminishing to 10 to
15 knots. 
.saturday night...west winds around 10 knots. a chance of snow
showers overnight. 
.sunday...west winds 10 to 15 knots becoming northwest 15 to
20 knots. snow showers likely during the day, then a chance of
snow showers sunday night. 
.monday...northwest winds 15 to 20 knots diminishing to 10 to
15 knots. 
.tuesday...west winds 5 to 15 knots becoming south and increasing
to 15 to 25 knots. 

waves omitted due to the lake being mostly ice covered.

$$

fzus61 kcle 201424
glfle 
expires:202602202115;;961324

open lake forecast for lake erie
national weather service cleveland oh
924 am est fri feb 20 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...
low pressure 29.30 inches over lake michigan will slowly move
northeast over the great lakes today. this low will extend a cold
front across the lake this afternoon. the low will dissipate into
a trough averaging 29.90 inches that will remain over the eastern
great lakes through monday. a ridge averaging 30.20 inches will
enter for tuesday.


lez164-165-202115-
the islands to vermilion oh beyond 5 nm off shoreline to us-
canadian border-
vermilion to avon point oh beyond 5 nm off shoreline to us-
canadian border-
924 am est fri feb 20 2026

.rest of today...southwest winds to 30 knots. a slight chance of
rain and snow showers late. waves in ice free areas 3 to 6 feet. 
.tonight...west winds to 30 knots diminishing to 15 to 20 knots.
waves 3 to 6 feet subsiding to 2 to 4 feet. 
.saturday...west winds 15 to 20 knots diminishing to 10 to
15 knots. waves 1 to 3 feet. 
.saturday night...west winds around 10 knots. snow showers likely
overnight. waves 2 feet or less. 
.sunday...west winds 10 to 15 knots becoming northwest 15 to
20 knots. snow showers. waves 1 to 3 feet building to 2 to
4 feet. 
.monday...northwest winds 15 to 20 knots. a chance of snow
showers during the day. waves 2 to 4 feet subsiding to 1 to
3 feet. 
.tuesday...west winds around 10 knots becoming south and
increasing to 15 to 25 knots. a chance of snow tuesday night.
waves 1 to 3 feet building to 3 to 5 feet. 

wave heights are for ice free areas.

$$

fzus63 kdtx 201411
glflh 
expires:202602202215;;961038

open lake forecast for lake huron
national weather service detroit/pontiac mi
911 am est fri feb 20 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...low pressure, 29.20 inches, continues to lift into the
great lakes friday drawing an occluded front through the central
great lakes. strong southwest winds develop post front towards
the southern great lakes with gales possible most of the daylight
hours. gale warnings are in effect for lakes st clair and western
erie today.


lhz363-462>464-202215-
lake huron from sturgeon point to alabaster mi beyond 5nm off
shore-
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-
911 am est fri feb 20 2026

.rest of today...east winds 15 to 20 knots decreasing to 10 to
15 knots in the afternoon. rain late in the morning. 
.tonight...southwest winds 10 to 15 knots backing to the east
late in the evening...then backing to the north after midnight. 
.saturday...north winds 10 to 15 knots. 
.saturday night...north winds 5 to 10 knots. a chance of snow. 
.sunday...north winds 10 to 15 knots increasing to 15 to 20 knots
late in the afternoon. a chance of snow. 
.monday...north winds 20 to 25 knots decreasing to 15 to 20 knots
. 
.tuesday...north winds 10 to 15 knots veering to the east in the
late morning and early afternoon...then veering to the south
early in the evening increasing to 20 to 25 knots with gusts to
around 30 knots by midnight. a chance of snow by midnight. 

waves omitted due to ice coverage.

$$

fzus63 kdtx 201411
glflh 
expires:202602202215;;961037

open lake forecast for lake huron
national weather service detroit/pontiac mi
911 am est fri feb 20 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...low pressure, 29.20 inches, continues to lift into the
great lakes friday drawing an occluded front through the central
great lakes. strong southwest winds develop post front towards
the southern great lakes with gales possible most of the daylight
hours. gale warnings are in effect for lakes st clair and western
erie today.


lhz361-362-202215-
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-
911 am est fri feb 20 2026

.rest of today...east winds 20 to 25 knots decreasing to 15 to
20 knots late in the afternoon. gusts to around 30 knots. rain 
late in the morning...then rain and snow in the afternoon. waves 
10 to 14 feet. waves occasionally around 18 feet. 
.tonight...northeast winds 15 to 20 knots. waves 5 to 7 feet.
waves occasionally around 10 feet. 
.saturday...northeast winds 15 to 20 knots decreasing to 10 to
15 knots in the late morning and afternoon. a chance of snow.
waves 3 to 5 feet. 
.saturday night...northeast winds 10 to 15 knots. a chance of
snow in the evening. waves 2 to 4 feet. 
.sunday...north winds 10 to 15 knots increasing to 15 to 20 knots
late in the evening. waves 3 to 5 feet building to 5 to 7 feet
late in the evening. waves occasionally around 10 feet. 
.monday...north winds 20 to 25 knots decreasing to 10 to
15 knots. waves 5 to 7 feet. waves occasionally around 10 feet. 
.tuesday...north winds 5 to 10 knots becoming east 10 to 15 knots
in the late morning and early afternoon...then becoming south
15 to 20 knots early in the evening increasing to 20 to 25 knots
with gusts to around 30 knots by midnight. a chance of snow .
waves 2 to 4 feet building to 8 to 12 feet . waves occasionally
around 15 feet. 

wave heights are for ice free areas.

$$

fzus63 kdtx 201411
glfsc 
expires:202602202215;;961040

lake st clair forecast
national weather service detroit/pontiac mi
911 am est fri feb 20 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...low pressure, 29.20 inches, continues to lift into the
great lakes friday drawing an occluded front through the central
great lakes. strong southwest winds develop post front towards
the southern great lakes with gales possible most of the daylight
hours. gale warnings are in effect for lakes st clair and western
erie today.


lcz460-202215-
lake st clair-
911 am est fri feb 20 2026

...gale warning in effect through this evening...

.rest of today...southwest winds 20 to 25 knots with gusts to 35
knot gales. mostly cloudy. a chance of light rain and snow in the
afternoon.
.tonight...west winds 20 to 25 knots with gusts to 30 knots
diminishing to 15 to 20 knots after midnight. mostly cloudy.
.saturday...west winds 10 to 15 knots. mostly cloudy.
.saturday night...west winds 5 to 10 knots. cloudy with a chance of
light snow.
.sunday...northwest winds 10 to 15 knots. mostly cloudy with light
snow likely.
.monday...north winds 15 to 20 knots. mostly cloudy.
.tuesday...south winds 15 to 20 knots. mostly cloudy. a chance of
light snow.

waves omitted due to ice coverage.

$$

fzus63 kmkx 201444
glflm 
expires:202602202215;;961772

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
844 am cst fri feb 20 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...

low pressure around 29.2 inches over north central lake michigan 
will track to lake huron by late this afternoon. west to northwest
gales will develop over the southern half of lake michigan today 
as the strong low departs. a gale warning remains in effect into
this evening. 

northwest winds gradually subside late tonight as low pressure
weakens over lake huron. northwest to north winds continue 
through the weekend and into early next week as polar high 
pressure builds southward towards the dakotas and minnesota. 
these winds will become gusty sunday into monday morning as the 
polar high draws closer, and could reach gale force sunday night 
into monday morning. the high pressure area then moves across 
lake michigan monday night with light and variable winds expected.
 


lmz080-671-673-675-777-779-872-874-876-878-202215-
lake michigan from michigan city in to st. joseph mi 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 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-
844 am cst fri feb 20 2026

port washington wi to whitehall mi south...

...gale warning in effect through this evening...

.rest of today...southwest gales to 40 kt becoming west gales to
45 kt. chance of rain and snow through mid morning, then chance
of snow and rain this afternoon. waves 6 to 9 ft occasionally to
12 ft building to 10 to 14 ft occasionally to 18 ft. 
.tonight...west gales to 40 kt becoming northwest 15 to 25 kt.
waves 10 to 14 ft occasionally to 18 ft subsiding to 6 to 9 ft
occasionally to 12 ft. 
.saturday...northwest winds 10 to 20 kt. waves 5 to 8 ft
occasionally to 10 ft subsiding to 4 to 6 ft occasionally to
8 ft. 
.saturday night...northwest winds 10 to 20 kt increasing to 15 to
25 kt. chance of snow overnight. waves 4 to 6 ft occasionally to
8 ft building to 5 to 8 ft occasionally to 10 ft. 
.sunday...northwest winds to 30 kt. snow likely in the morning,
then chance of snow in the afternoon. waves 8 to 11 ft
occasionally to 14 ft building to 8 to 12 ft occasionally to
16 ft. 
.sunday night...northwest winds to 30 kt becoming north gales to
35 kt. chance of snow. waves 10 to 14 ft occasionally to 18 ft. 
.monday...north gales to 35 kt diminishing to 30 kt. chance of
snow. waves 10 to 14 ft occasionally to 18 ft. 
.tuesday...southwest winds to 30 kt becoming south. waves 6 to
9 ft occasionally to 12 ft building to 8 to 11 ft occasionally to
14 ft.  

$$

fzus63 kmkx 201444
glflm 
expires:202602202215;;961770

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
844 am cst fri feb 20 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...

low pressure around 29.2 inches over north central lake michigan 
will track to lake huron by late this afternoon. west to northwest
gales will develop over the southern half of lake michigan today 
as the strong low departs. a gale warning remains in effect into
this evening. 

northwest winds gradually subside late tonight as low pressure
weakens over lake huron. northwest to north winds continue 
through the weekend and into early next week as polar high 
pressure builds southward towards the dakotas and minnesota. 
these winds will become gusty sunday into monday morning as the 
polar high draws closer, and could reach gale force sunday night 
into monday morning. the high pressure area then moves across 
lake michigan monday night with light and variable winds expected.
 


lmz261-362-364-366-563-565-202215-
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-
844 am cst fri feb 20 2026

two rivers wi to manistee mi north...

.rest of today...east gales to 40 kt becoming northeast to 30 kt
early this afternoon, then becoming north gales to 35 kt late.
rain with freezing rain likely through mid morning, then rain and
snow likely this afternoon. waves 4 to 6 ft occasionally to 8 ft
building to 5 to 8 ft occasionally to 10 ft. 
.tonight...northwest gales to 35 kt becoming north 10 to 20 kt.
snow likely with possible rain and freezing rain in the evening,
then chance of snow and slight chance of light freezing rain
overnight. waves 5 to 8 ft occasionally to 10 ft subsiding to
4 to 6 ft occasionally to 8 ft. 
.saturday...north winds 10 to 20 kt diminishing to 10 to 15 kt.
snow likely in the morning, then chance of snow in the afternoon.
waves 3 to 5 ft subsiding to 2 to 4 ft. 
.saturday night...north winds 10 to 20 kt increasing to 15 to
25 kt. chance of snow. waves 2 to 4 ft building to 4 to 6 ft
occasionally to 8 ft. 
.sunday...north winds 15 to 25 kt increasing to 30 kt. chance of
snow in the morning. waves 6 to 9 ft occasionally to 12 ft. 
.sunday night...north winds to 30 kt. waves 8 to 11 ft
occasionally to 14 ft. 
.monday...north winds to 30 kt diminishing to 15 to 25 kt. waves
8 to 12 ft occasionally to 16 ft subsiding to 6 to 9 ft
occasionally to 12 ft. 
.tuesday...south winds to 30 kt. chance of snow. waves 5 to 8 ft
occasionally to 10 ft building to 10 to 14 ft occasionally to
18 ft.  

$$

fzus63 kmkx 201444
glflm 
expires:202602202215;;961771

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
844 am cst fri feb 20 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...

low pressure around 29.2 inches over north central lake michigan 
will track to lake huron by late this afternoon. west to northwest
gales will develop over the southern half of lake michigan today 
as the strong low departs. a gale warning remains in effect into
this evening. 

northwest winds gradually subside late tonight as low pressure
weakens over lake huron. northwest to north winds continue 
through the weekend and into early next week as polar high 
pressure builds southward towards the dakotas and minnesota. 
these winds will become gusty sunday into monday morning as the 
polar high draws closer, and could reach gale force sunday night 
into monday morning. the high pressure area then moves across 
lake michigan monday night with light and variable winds expected.
 


lmz567-669-868-870-202215-
lake michigan from two rivers to sheboygan wi 5 nm offshore to
mid lake-
lake michigan from sheboygan to port washington wi 5 nm offshore
to mid lake-
lake michigan from pentwater to manistee mi 5 nm offshore to mid
lake-
lake michigan from whitehall to pentwater mi 5 nm offshore to mid
lake-
844 am cst fri feb 20 2026

two rivers wi to manistee mi south to port washington wi to
whitehall mi...

...gale warning in effect through this evening...

.rest of today...south winds to 30 kt becoming southwest late
this morning, then becoming west gales to 40 kt this afternoon.
chance of rain through mid morning, then rain likely with slight
chance of snow this afternoon. waves 4 to 6 ft occasionally to
8 ft building to 8 to 12 ft occasionally to 16 ft. 
.tonight...northwest gales to 40 kt diminishing to 15 to 25 kt.
chance of snow and rain likely in the evening, then slight chance
of snow overnight. waves 8 to 12 ft occasionally to 16 ft
subsiding to 6 to 9 ft occasionally to 12 ft. 
.saturday...northwest winds 10 to 20 kt. waves 4 to 7 ft
occasionally to 9 ft subsiding to 3 to 5 ft. 
.saturday night...northwest winds 10 to 20 kt increasing to 15 to
25 kt. chance of snow. waves 3 to 5 ft building to 5 to 8 ft
occasionally to 10 ft. 
.sunday...northwest winds to 30 kt. chance of snow. waves 7 to
10 ft occasionally to 13 ft building to 8 to 11 ft occasionally
to 14 ft. 
.sunday night...north winds to 30 kt increasing to gales to
35 kt. waves 10 to 14 ft occasionally to 18 ft. 
.monday...north gales to 35 kt diminishing to 30 kt. waves 10 to
14 ft occasionally to 18 ft. 
.tuesday...south winds to 30 kt. waves 6 to 9 ft occasionally to
12 ft building to 10 to 14 ft occasionally to 18 ft.  

$$

fzus63 kmqt 201501
glfls 
expires:202602202100;;962308

open lake forecast for lake superior
national weather service marquette mi
1000 am est fri feb 20 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 29.2 inch low over lake michigan this morning traverses northern 
lower michigan and lake huron this afternoon and evening, 
progressively weakening to 29.5 inches as it does so. the low 
continues to weaken saturday, devolving into bent back troughing of 
30.2 inches over the upper great lakes by sunday morning. troughing 
continues to weaken sunday as a 31.0 inch high moves across 
manitoba. this high weakens to 30.5 inches as it moves through 
northern ontario monday. behind the ridge monday night and tuesday, 
a deepening clipper low of at least 29.6 inches moves into the 
northern plains, reaching the u.p. tuesday evening. troughing around 
29.7 inches remains over lake superior through wednesday as a 29.5 
inch low tracks to the south.



lsz162-202100-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
1000 am est fri feb 20 2026 /900 am cst fri feb 20 2026/

.rest of today...north winds 15 to 25 knots diminishing to 10 to
20 knots by mid afternoon. a chance of snow. waves 3 to 5 feet
occasionally to 7 feet. 
.tonight...northwest winds 10 to 20 knots. a slight chance of
snow showers. waves subsiding to 1 to 3 feet. 
.saturday...northwest winds 10 to 20 knots. a chance of snow
showers. waves subsiding to calm to 2 feet. 
.saturday night...northwest winds 10 to 20 knots increasing to
15 to 25 knots after midnight. a slight chance of snow showers.
waves building to 1 to 3 feet. 
.sunday...north winds 15 to 25 knots. waves 1 to 3 feet. 
.sunday night...north winds 15 to 25 knots diminishing to 10 to
20 knots after midnight. waves 1 to 3 feet. 
.monday...north winds 10 to 20 knots veering southeast. waves
subsiding to calm to 2 feet, then building to 2 to 4 feet. 
.tuesday...south winds 15 to 25 knots veering west. a chance of
snow showers. waves building to 3 to 5 feet occasionally to
7 feet, then subsiding to 1 to 3 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 201501
glfls 
expires:202602202100;;962309

open lake forecast for lake superior
national weather service marquette mi
1000 am est fri feb 20 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 29.2 inch low over lake michigan this morning traverses northern 
lower michigan and lake huron this afternoon and evening, 
progressively weakening to 29.5 inches as it does so. the low 
continues to weaken saturday, devolving into bent back troughing of 
30.2 inches over the upper great lakes by sunday morning. troughing 
continues to weaken sunday as a 31.0 inch high moves across 
manitoba. this high weakens to 30.5 inches as it moves through 
northern ontario monday. behind the ridge monday night and tuesday, 
a deepening clipper low of at least 29.6 inches moves into the 
northern plains, reaching the u.p. tuesday evening. troughing around 
29.7 inches remains over lake superior through wednesday as a 29.5 
inch low tracks to the south.



lsz263-202100-
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 am est fri feb 20 2026

.rest of today...north winds 15 to 25 knots increasing to 20 to
30 knots by late morning, then diminishing to 15 to 25 knots by
mid afternoon. freezing spray. snow. waves 4 to 8 feet
occasionally to 10 feet. 
.tonight...north winds 10 to 20 knots. freezing spray in the
evening. a chance of snow showers. waves subsiding to 3 to 5 feet
occasionally to 7 feet. 
.saturday...north winds 10 to 20 knots diminishing to 5 to
15 knots by mid afternoon. a chance of snow showers. waves
subsiding to 1 to 3 feet. 
.saturday night...north winds 10 to 20 knots. a slight chance of
snow showers. waves building to 3 to 5 feet occasionally to
7 feet. 
.sunday...north winds 15 to 25 knots. a slight chance of snow
showers in the morning. waves building to 4 to 7 feet
occasionally to 9 feet. 
.sunday night...north winds 20 to 30 knots. heavy freezing spray.
waves building to 5 to 8 feet occasionally to 10 feet. 
.monday...north winds 15 to 25 knots veering south. waves
subsiding to calm to 2 feet, then building to 3 to 5 feet
occasionally to 7 feet. 
.tuesday...south winds 15 to 25 knots veering west. a chance of
snow showers. waves building to 4 to 7 feet occasionally to
9 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 201501
glfls 
expires:202602202100;;962310

open lake forecast for lake superior
national weather service marquette mi
1000 am est fri feb 20 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 29.2 inch low over lake michigan this morning traverses northern 
lower michigan and lake huron this afternoon and evening, 
progressively weakening to 29.5 inches as it does so. the low 
continues to weaken saturday, devolving into bent back troughing of 
30.2 inches over the upper great lakes by sunday morning. troughing 
continues to weaken sunday as a 31.0 inch high moves across 
manitoba. this high weakens to 30.5 inches as it moves through 
northern ontario monday. behind the ridge monday night and tuesday, 
a deepening clipper low of at least 29.6 inches moves into the 
northern plains, reaching the u.p. tuesday evening. troughing around 
29.7 inches remains over lake superior through wednesday as a 29.5 
inch low tracks to the south.



lsz264-202100-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
1000 am est fri feb 20 2026

.rest of today...northeast winds 15 to 25 knots increasing to
20 to 30 knots by late morning, then becoming north 15 to
25 knots by mid afternoon. snow. freezing spray in the afternoon.
waves 5 to 8 feet occasionally to 10 feet. 
.tonight...north winds 15 to 25 knots diminishing to 10 to
20 knots by midnight. freezing spray. snow showers in the
evening. snow showers likely after midnight. waves subsiding to
3 to 5 feet occasionally to 7 feet. 
.saturday...north winds 10 to 20 knots. a chance of snow showers.
waves subsiding to 2 to 4 feet. 
.saturday night...north winds 10 to 20 knots. a slight chance of
snow showers. waves building to 3 to 5 feet occasionally to
7 feet. 
.sunday...north winds 15 to 25 knots increasing to 20 to 30 knots
in the afternoon. heavy freezing spray. waves building to 5 to
8 feet occasionally to 10 feet. 
.sunday night...north winds 20 to 30 knots. heavy freezing spray.
waves building to 6 to 9 feet occasionally to 11 feet. 
.monday...north winds 20 to 30 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. 
.tuesday...south winds 20 to 30 knots veering northwest. freezing
spray. a chance of snow showers. waves building to 6 to 10 feet
occasionally to 13 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 201501
glfls 
expires:202602202100;;962311

open lake forecast for lake superior
national weather service marquette mi
1000 am est fri feb 20 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 29.2 inch low over lake michigan this morning traverses northern 
lower michigan and lake huron this afternoon and evening, 
progressively weakening to 29.5 inches as it does so. the low 
continues to weaken saturday, devolving into bent back troughing of 
30.2 inches over the upper great lakes by sunday morning. troughing 
continues to weaken sunday as a 31.0 inch high moves across 
manitoba. this high weakens to 30.5 inches as it moves through 
northern ontario monday. behind the ridge monday night and tuesday, 
a deepening clipper low of at least 29.6 inches moves into the 
northern plains, reaching the u.p. tuesday evening. troughing around 
29.7 inches remains over lake superior through wednesday as a 29.5 
inch low tracks to the south.



lsz265-202100-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
1000 am est fri feb 20 2026

.rest of today...northeast winds 20 to 30 knots becoming north
15 to 25 knots by mid afternoon. a slight chance of rain and
sleet late in the morning. snow. waves 3 to 6 feet occasionally
to 8 feet building to 4 to 7 feet occasionally to 9 feet, then
subsiding to 3 to 6 feet occasionally to 8 feet. 
.tonight...northwest winds 20 to 30 knots diminishing to 15 to
25 knots by midnight. snow showers. waves subsiding to 3 to
5 feet occasionally to 7 feet. 
.saturday...northwest winds 15 to 25 knots veering north by late
morning, then backing northwest by mid afternoon. snow showers
likely in the morning, then a chance of snow showers in the
afternoon. waves subsiding to 2 to 4 feet. 
.saturday night...northwest winds 15 to 25 knots. a chance of
snow showers. waves 2 to 4 feet. 
.sunday...north winds 20 to 30 knots increasing to gales to
35 knots in the afternoon. freezing spray. a slight chance of
snow showers. waves building to 6 to 9 feet occasionally to
11 feet. 
.sunday night...north gales to 35 knots. heavy freezing spray.
waves building to 7 to 10 feet occasionally to 13 feet. 
.monday...north winds 20 to 30 knots becoming south 10 to
20 knots. heavy freezing spray. waves subsiding to 1 to 3 feet,
then building to 3 to 5 feet occasionally to 7 feet. 
.tuesday...south winds 20 to 30 knots veering west. freezing
spray. a chance of snow showers. waves building to 5 to 8 feet
occasionally to 10 feet, then subsiding to 3 to 6 feet
occasionally to 8 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 201501
glfls 
expires:202602202100;;962312

open lake forecast for lake superior
national weather service marquette mi
1000 am est fri feb 20 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 29.2 inch low over lake michigan this morning traverses northern 
lower michigan and lake huron this afternoon and evening, 
progressively weakening to 29.5 inches as it does so. the low 
continues to weaken saturday, devolving into bent back troughing of 
30.2 inches over the upper great lakes by sunday morning. troughing 
continues to weaken sunday as a 31.0 inch high moves across 
manitoba. this high weakens to 30.5 inches as it moves through 
northern ontario monday. behind the ridge monday night and tuesday, 
a deepening clipper low of at least 29.6 inches moves into the 
northern plains, reaching the u.p. tuesday evening. troughing around 
29.7 inches remains over lake superior through wednesday as a 29.5 
inch low tracks to the south.



lsz266-202100-
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 am est fri feb 20 2026

.rest of today...east winds 20 to 30 knots backing northeast.
rain, possibly mixed with sleet late in the morning. snow. a
slight chance of rain in the afternoon. waves 4 to 7 feet
occasionally to 9 feet subsiding to 3 to 6 feet occasionally to
8 feet. 
.tonight...northeast winds 15 to 25 knots. snow showers likely in
the evening, then a chance of snow showers after midnight. waves
subsiding to 3 to 5 feet occasionally to 7 feet. 
.saturday...northeast winds 15 to 25 knots diminishing to 10 to
20 knots by late morning, then becoming north 15 to 25 knots by
mid afternoon. a chance of snow showers. waves subsiding to 2 to
4 feet. 
.saturday night...north winds 15 to 25 knots. a chance of snow
showers. waves building to 3 to 5 feet occasionally to 7 feet. 
.sunday...north winds 15 to 25 knots increasing to 20 to 30 knots
in the afternoon. freezing spray. a chance of snow showers. waves
building to 6 to 9 feet occasionally to 11 feet. 
.sunday night...north gales to 35 knots. heavy freezing spray. a
chance of snow showers. waves building to 8 to 11 feet
occasionally to 14 feet. 
.monday...north gales to 35 knots diminishing to 15 to 25 knots.
heavy freezing spray. waves subsiding to 1 to 3 feet, then
building to 3 to 5 feet occasionally to 7 feet. 
.tuesday...south gales to 35 knots. freezing spray. a chance of
snow showers. waves building to 7 to 11 feet occasionally to
14 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 201501
glfls 
expires:202602202100;;962313

open lake forecast for lake superior
national weather service marquette mi
1000 am est fri feb 20 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 29.2 inch low over lake michigan this morning traverses northern 
lower michigan and lake huron this afternoon and evening, 
progressively weakening to 29.5 inches as it does so. the low 
continues to weaken saturday, devolving into bent back troughing of 
30.2 inches over the upper great lakes by sunday morning. troughing 
continues to weaken sunday as a 31.0 inch high moves across 
manitoba. this high weakens to 30.5 inches as it moves through 
northern ontario monday. behind the ridge monday night and tuesday, 
a deepening clipper low of at least 29.6 inches moves into the 
northern plains, reaching the u.p. tuesday evening. troughing around 
29.7 inches remains over lake superior through wednesday as a 29.5 
inch low tracks to the south.



lsz267-202100-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
1000 am est fri feb 20 2026

.rest of today...east winds 20 to 30 knots diminishing to 15 to
25 knots by late morning, then backing northeast by mid
afternoon. a chance of rain late in the morning, then rain and
snow likely in the afternoon. waves 3 to 5 feet occasionally to
7 feet subsiding to 2 to 4 feet. 
.tonight...northeast winds 15 to 25 knots diminishing to 10 to
20 knots late. a slight chance of rain showers in the evening. a
slight chance of snow showers. waves 2 to 4 feet. 
.saturday...east winds 10 to 20 knots diminishing to 5 to
15 knots by late morning, then becoming northeast 10 to 20 knots
by mid afternoon. a chance of snow showers. waves subsiding to
calm to 2 feet. 
.saturday night...northeast winds 10 to 20 knots. a slight chance
of snow showers. waves calm to 2 feet. 
.sunday...north winds 10 to 20 knots increasing to 15 to 25 knots
in the afternoon. a slight chance of snow showers in the morning.
waves building to 3 to 6 feet occasionally to 8 feet. 
.sunday night...north winds 20 to 30 knots. heavy freezing spray.
waves building to 5 to 8 feet occasionally to 10 feet. 
.monday...north winds 20 to 30 knots becoming east 10 to
20 knots. heavy freezing spray. waves subsiding to 1 to 3 feet,
then building to 2 to 4 feet. 
.tuesday...southeast winds 20 to 30 knots becoming south gales to
35 knots. freezing spray. a chance of snow showers. snow showers
likely. waves building to 8 to 11 feet occasionally to 14 feet. 

note, wave height forecasts are for ice free areas.

$$