fzus63 kdtx 192053
glflh 
expires:202602200500;;920021

open lake forecast for lake huron
national weather service detroit/pontiac mi
353 pm est thu feb 19 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...patchy fog persists through the evening across
southern portions of lake huron and lake st clair. low pressure, 
29.20 inches, then lifts into the great lakes friday bringing a 
chance for northeast winds to gust to gale force. a gale watch 
remains in effect north of sturgeon point. 


lhz361-362-200500-
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-
353 pm est thu feb 19 2026

...gale watch in effect from late tonight through friday
evening...

.tonight...east winds 15 to 20 knots increasing to 20 to 25 knots
with gusts to around 30 knots in the late evening and overnight.
scattered showers and a chance of freezing rain after midnight.
waves 6 to 9 feet. waves occasionally around 12 feet. 
.friday...east winds to 30 knots decreasing to 20 to 25 knots in
the afternoon. gusts to 35 knot gales. showers and freezing rain
in the morning...then rain and snow showers in the afternoon.
waves 10 to 14 feet. waves occasionally around 18 feet. 
.friday night...northeast winds 15 to 20 knots. gusts to 30 knots
early in the evening. rain and snow showers in the evening...then
a chance of snow after midnight. waves 6 to 9 feet. waves
occasionally around 12 feet. 
.saturday...northeast winds 15 to 20 knots decreasing to 10 to
15 knots early in the afternoon. a chance of snow. waves 4 to
6 feet. waves occasionally around 8 feet. 
.saturday night...northeast winds 10 to 15 knots. a chance of
snow. waves 2 to 4 feet. 
.sunday...northeast winds 10 to 15 knots becoming north 20 to
25 knots. waves 3 to 5 feet building to 6 to 9 feet late in the
evening. waves occasionally around 12 feet. 
.monday...north winds 20 to 25 knots decreasing to 10 to
15 knots. waves 6 to 9 feet. waves occasionally around 12 feet. 
.tuesday...north winds 10 to 15 knots veering to the east in the
late morning and early afternoon...then becoming southeast 15 to
20 knots early in the evening becoming south 20 to 25 knots with
gusts to around 30 knots by midnight. a chance of snow. waves
3 to 5 feet building to 6 to 9 feet . waves occasionally around
12 feet. 


$$

fzus63 kdtx 192053
glflh 
expires:202602200500;;920022

open lake forecast for lake huron
national weather service detroit/pontiac mi
353 pm est thu feb 19 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...patchy fog persists through the evening across
southern portions of lake huron and lake st clair. low pressure, 
29.20 inches, then lifts into the great lakes friday bringing a 
chance for northeast winds to gust to gale force. a gale watch 
remains in effect north of sturgeon point. 


lhz363-462>464-200500-
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-
353 pm est thu feb 19 2026

.tonight...east winds 10 to 15 knots increasing to 15 to 20 knots
after midnight. numerous showers after midnight. waves 3 to
5 feet building to 4 to 6 feet early in the morning. waves
occasionally around 8 feet. 
.friday...east winds 20 to 25 knots decreasing to 15 to 20 knots
with gusts to around 30 knots in the late morning and early
afternoon...then becoming south 10 to 15 knots late in the
afternoon. showers in the morning...then numerous showers and a
chance of snow showers in the afternoon. waves 6 to 9 feet. waves
occasionally around 12 feet. 
.friday night...south winds 10 to 15 knots veering to the
southwest in the late evening and overnight. numerous showers and
a chance of snow showers in the evening...then a chance of snow
and rain after midnight. waves 3 to 5 feet. 
.saturday...west winds 10 to 15 knots. a chance of snow in the
morning. waves 3 to 5 feet. 
.saturday night...north winds 5 to 10 knots. a chance of snow
after midnight. waves 2 to 4 feet. 
.sunday...north winds 10 to 15 knots increasing to 15 to 20 knots
late in the afternoon. a chance of snow. waves 3 to 5 feet
building to 6 to 9 feet late in the evening. waves occasionally
around 12 feet. 
.monday...north winds 20 to 25 knots becoming northwest 15 to
20 knots by midnight. waves 6 to 9 feet. waves occasionally
around 12 feet. 
.tuesday...north winds 10 to 15 knots backing to the south early
in the evening...then increasing to 20 to 25 knots with gusts to
around 30 knots by midnight. a chance of snow by midnight. waves
4 to 6 feet. waves occasionally around 8 feet. 


$$

fzus63 kmkx 191958
glflm 
expires:202602200430;;917993

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
158 pm cst thu feb 19 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 of 29.4 inches over northern missouri this afternoon
will head northeast this evening and tonight, reaching central
lake michigan early friday morning while deepening to 29.2 inches.
west to northwest gales will develop on the back side of this low
as it pulls away into michigan on friday. confidence is high in
gusts up to 40 knots, so the gale watch has been upgraded to a
warning. westerly winds will ease to around 10 to 20 knots for
friday night into saturday as the weakening low pulls away and
high pressure approaches. northwest to north winds will then
increase sunday into monday between strong high pressure to the
northwest and a low pressure system lifting from the mid-atlantic
states into the northeast united states. winds could reach gale 
force sunday night into monday. 


lmz567-868-200430-
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-
158 pm cst thu feb 19 2026

two rivers wi to manistee mi south to sheboygan wi to pentwater
mi...

...gale warning in effect from friday morning through friday
evening...

.tonight...northeast winds 10 to 20 kt becoming east. chance of
rain showers this evening, then rain overnight. waves 2 to 4 ft. 
.friday...east winds 15 to 25 kt veering to southwest to 30 kt
late in the morning, then veering to northwest gales to 35 kt in
the afternoon. chance of rain in the morning, then chance of rain
and snow in the afternoon. waves 3 to 5 ft building to 6 to 9 ft
occasionally to 12 ft. 
.friday night...northwest gales to 35 kt diminishing to 10 to
20 kt. chance of rain and snow in the evening. waves 6 to 9 ft
occasionally to 12 ft subsiding to 4 to 7 ft occasionally to
9 ft. 
.saturday...northwest winds 10 to 20 kt. waves 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. waves 3 to 5 ft building to 4 to 7 ft
occasionally to 9 ft. 
.sunday...northwest winds to 30 kt becoming north. chance of
snow. waves 5 to 8 ft occasionally to 10 ft building to 7 to
10 ft occasionally to 13 ft. 
.sunday night...north winds to 30 kt. waves 10 to 14 ft
occasionally to 18 ft. 
.monday...north winds to 30 kt. waves 10 to 14 ft occasionally to
18 ft. 
.tuesday...south winds 15 to 25 kt increasing to 30 kt. chance of
snow. waves 5 to 8 ft occasionally to 10 ft building to 8 to
12 ft occasionally to 16 ft.  

$$

fzus63 kmkx 191958
glflm 
expires:202602200430;;917995

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
158 pm cst thu feb 19 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 of 29.4 inches over northern missouri this afternoon
will head northeast this evening and tonight, reaching central
lake michigan early friday morning while deepening to 29.2 inches.
west to northwest gales will develop on the back side of this low
as it pulls away into michigan on friday. confidence is high in
gusts up to 40 knots, so the gale watch has been upgraded to a
warning. westerly winds will ease to around 10 to 20 knots for
friday night into saturday as the weakening low pulls away and
high pressure approaches. northwest to north winds will then
increase sunday into monday between strong high pressure to the
northwest and a low pressure system lifting from the mid-atlantic
states into the northeast united states. winds could reach gale 
force sunday night into monday. 


lmz669-870-200430-
lake michigan from sheboygan to port washington wi 5 nm offshore
to mid lake-
lake michigan from whitehall to pentwater mi 5 nm offshore to mid
lake-
158 pm cst thu feb 19 2026

sheboygan wi to pentwater mi south to port washington wi to
whitehall mi...

...gale warning in effect from friday morning through friday
evening...

.tonight...northeast winds 10 to 20 kt becoming east 15 to 25 kt.
chance of rain showers this evening, then rain and slight chance
of thunderstorms overnight. waves 2 to 4 ft. 
.friday...southwest winds 15 to 25 kt becoming west gales to
35 kt late in the morning, then becoming northwest gales to 40 kt
early in the afternoon becoming west late. chance of rain in the
morning, then chance of rain and snow in the afternoon. waves
3 to 5 ft building to 8 to 11 ft occasionally to 14 ft. 
.friday night...west gales to 40 kt becoming northwest 15 to
25 kt. chance of snow and rain in the evening. waves 8 to 11 ft
occasionally to 14 ft subsiding to 4 to 7 ft occasionally to
9 ft. 
.saturday...northwest winds 10 to 20 kt. waves 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. 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 6 to
9 ft occasionally to 12 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 winds to 30 kt. waves 10 to 14 ft occasionally to
18 ft. 
.tuesday...southwest winds 15 to 25 kt becoming south to 30 kt.
waves 5 to 8 ft occasionally to 10 ft building to 8 to 11 ft
occasionally to 14 ft.  

$$

fzus63 kmkx 191958
glflm 
expires:202602200430;;917994

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
158 pm cst thu feb 19 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 of 29.4 inches over northern missouri this afternoon
will head northeast this evening and tonight, reaching central
lake michigan early friday morning while deepening to 29.2 inches.
west to northwest gales will develop on the back side of this low
as it pulls away into michigan on friday. confidence is high in
gusts up to 40 knots, so the gale watch has been upgraded to a
warning. westerly winds will ease to around 10 to 20 knots for
friday night into saturday as the weakening low pulls away and
high pressure approaches. northwest to north winds will then
increase sunday into monday between strong high pressure to the
northwest and a low pressure system lifting from the mid-atlantic
states into the northeast united states. winds could reach gale 
force sunday night into monday. 


lmz080-671-673-675-777-779-872-874-876-878-200430-
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-
158 pm cst thu feb 19 2026

port washington wi to whitehall mi south...

...gale warning in effect from friday morning through friday
evening...

.tonight...northeast winds 10 to 20 kt becoming east late this
evening, then increasing to 15 to 25 kt after midnight becoming
south to 30 kt late. rain showers likely with slight chance of
thunderstorms this evening, then rain and slight chance of
thunderstorms overnight. waves 2 to 4 ft building to 4 to 6 ft
occasionally to 8 ft. 
.friday...southwest gales to 40 kt becoming west. chance of rain 
and snow in the morning, then chance of snow and slight chance of 
rain in the afternoon. waves 6 to 9 ft occasionally to 12 ft 
building to 10 to 14 ft occasionally to 18 ft. 
.friday night...west gales to 40 kt becoming northwest 15 to
25 kt. chance of snow in the evening. 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 4 to 7 ft
occasionally to 9 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. chance of snow. 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 12 to 16 ft occasionally to 21 ft. 
.monday...north gales to 35 kt diminishing to 30 kt. waves 12 to
16 ft occasionally to 21 ft. 
.tuesday...southwest winds to 30 kt becoming south. waves 5 to
8 ft occasionally to 10 ft building to 8 to 11 ft occasionally to
14 ft.  

$$

fzus63 kmkx 191958
glflm 
expires:202602200430;;917992

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
158 pm cst thu feb 19 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 of 29.4 inches over northern missouri this afternoon
will head northeast this evening and tonight, reaching central
lake michigan early friday morning while deepening to 29.2 inches.
west to northwest gales will develop on the back side of this low
as it pulls away into michigan on friday. confidence is high in
gusts up to 40 knots, so the gale watch has been upgraded to a
warning. westerly winds will ease to around 10 to 20 knots for
friday night into saturday as the weakening low pulls away and
high pressure approaches. northwest to north winds will then
increase sunday into monday between strong high pressure to the
northwest and a low pressure system lifting from the mid-atlantic
states into the northeast united states. winds could reach gale 
force sunday night into monday. 


lmz261-362-364-366-563-565-200430-
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-
158 pm cst thu feb 19 2026

two rivers wi to manistee mi north...

.tonight...northeast winds 15 to 25 kt becoming east to 30 kt.
chance of rain showers this evening, then rain overnight. waves
2 to 4 ft building to 3 to 5 ft. 
.friday...east winds to 30 kt becoming north. a few gusts to gale
force possible in the far north in the morning. rain in the 
morning, then snow likely with a chance of rain in the afternoon. 
waves 4 to 7 ft occasionally to 9 ft. 
.friday night...northwest winds to 30 kt diminishing to 10 to
20 kt. chance of rain and snow in the evening, then chance of
snow overnight. waves 4 to 7 ft occasionally to 9 ft subsiding to
4 to 6 ft occasionally to 8 ft. 
.saturday...north winds 10 to 20 kt diminishing to 10 to 15 kt.
chance of snow. 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 in the evening. 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 afternoon. waves 4 to 7 ft occasionally to 9 ft
building to 7 to 10 ft occasionally to 13 ft. 
.sunday night...north winds to 30 kt. waves 8 to 12 ft
occasionally to 16 ft. 
.monday...north winds to 30 kt diminishing to 15 to 25 kt. waves
10 to 14 ft occasionally to 18 ft subsiding to 7 to 10 ft
occasionally to 13 ft. 
.tuesday...south winds 15 to 25 kt increasing to 30 kt. chance of
snow. waves 5 to 8 ft occasionally to 10 ft building to 8 to
12 ft occasionally to 16 ft.  

$$

fzus63 kmqt 192100
glfls 
expires:202602200900;;920472

open lake forecast for lake superior
national weather service marquette mi
400 pm est thu feb 19 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 29.7 inch low over western lake superior this afternoon 
phases with a 29.4 inch low lifting northeast into the great lakes. 
this low arrives at central lake michigan friday morning at 29.2 
inches then weakens to 29.6 inches as it moves over northern lower 
michigan to lake huron on friday, extending 29.7 to 29.5 inch 
troughing over lake superior during the day. the low gradually 
weakens through the remainder of the weekend to 30.0 inches over the 
lower great lakes as strong high pressure expands over the plains. 
high pressure builds over lake superior through monday night at 30.5 
inches as the high pressure shifts east. behind the ridging, a 
deepening 29.6 inch clipper low moves into the northern plains on 
tuesday.



lsz267-200900-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
400 pm est thu feb 19 2026

.late this afternoon...southeast winds 20 to 30 knots. waves 3 to
6 feet occasionally to 8 feet. 
.tonight...southeast winds 15 to 25 knots increasing to 20 to
30 knots by midnight, then backing east late. a chance of rain,
possibly mixed with freezing rain and snow. a chance of sleet
after midnight. waves subsiding to 2 to 4 feet. 
.friday...east winds 20 to 30 knots becoming northeast 15 to
25 knots by mid afternoon. rain likely, possibly mixed with snow
in the morning, then snow, possibly mixed with rain in the
afternoon. waves building to 3 to 5 feet occasionally to 7 feet,
then subsiding to 2 to 4 feet. 
.friday night...northeast winds 15 to 25 knots. a chance of rain
in the evening. a chance of snow. waves 2 to 4 feet. 
.saturday...east winds 10 to 20 knots backing northeast in the
afternoon. a chance of snow showers. waves subsiding to calm to
2 feet. 
.saturday night...northeast winds 10 to 20 knots. waves building
to 1 to 3 feet. 
.sunday...north winds 10 to 20 knots increasing to 15 to 25 knots
in the afternoon. waves building to 3 to 5 feet occasionally to
7 feet. 
.sunday night...north winds 20 to 30 knots increasing to gales to
35 knots after midnight. heavy freezing spray. waves building to
6 to 9 feet occasionally to 11 feet. 
.monday...north winds 20 to 30 knots becoming northeast 10 to
20 knots. heavy freezing spray. waves subsiding 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. waves
building to 6 to 10 feet occasionally to 13 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 192100
glfls 
expires:202602200900;;920467

open lake forecast for lake superior
national weather service marquette mi
400 pm est thu feb 19 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 29.7 inch low over western lake superior this afternoon 
phases with a 29.4 inch low lifting northeast into the great lakes. 
this low arrives at central lake michigan friday morning at 29.2 
inches then weakens to 29.6 inches as it moves over northern lower 
michigan to lake huron on friday, extending 29.7 to 29.5 inch 
troughing over lake superior during the day. the low gradually 
weakens through the remainder of the weekend to 30.0 inches over the 
lower great lakes as strong high pressure expands over the plains. 
high pressure builds over lake superior through monday night at 30.5 
inches as the high pressure shifts east. behind the ridging, a 
deepening 29.6 inch clipper low moves into the northern plains on 
tuesday.



lsz162-200900-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
400 pm est thu feb 19 2026 /300 pm cst thu feb 19 2026/

.late this afternoon...north winds 10 to 20 knots. a chance of
snow showers. waves 4 to 7 feet occasionally to 9 feet subsiding
to 3 to 6 feet occasionally to 8 feet. 
.tonight...north winds 10 to 20 knots diminishing to 5 to
15 knots by midnight, then increasing to 10 to 20 knots late. a
slight chance of snow. waves subsiding to calm to 2 feet. 
.friday...north winds 10 to 20 knots increasing to 15 to 25 knots
by late morning, then diminishing to 10 to 20 knots by mid
afternoon. a chance of snow. waves building to 2 to 4 feet. 
.friday night...northwest winds 10 to 20 knots. a chance of snow.
waves subsiding to calm to 2 feet. 
.saturday...north winds 10 to 20 knots. a chance of snow showers.
waves calm to 2 feet. 
.saturday night...northwest winds 10 to 20 knots increasing to
15 to 25 knots after midnight. waves calm to 2 feet. 
.sunday...north winds 15 to 25 knots. waves building to 1 to
3 feet. 
.sunday night...north winds 15 to 25 knots. waves building to
2 to 4 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 10 to 20 knots veering west. a chance of
snow showers. waves subsiding to calm to 2 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 192100
glfls 
expires:202602200900;;920468

open lake forecast for lake superior
national weather service marquette mi
400 pm est thu feb 19 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 29.7 inch low over western lake superior this afternoon 
phases with a 29.4 inch low lifting northeast into the great lakes. 
this low arrives at central lake michigan friday morning at 29.2 
inches then weakens to 29.6 inches as it moves over northern lower 
michigan to lake huron on friday, extending 29.7 to 29.5 inch 
troughing over lake superior during the day. the low gradually 
weakens through the remainder of the weekend to 30.0 inches over the 
lower great lakes as strong high pressure expands over the plains. 
high pressure builds over lake superior through monday night at 30.5 
inches as the high pressure shifts east. behind the ridging, a 
deepening 29.6 inch clipper low moves into the northern plains on 
tuesday.



lsz263-200900-
lake superior from saxon harbor wi to upper entrance to portage
canal mi 5nm off shore to the us/canadian border including isle
royale national park-
400 pm est thu feb 19 2026

.late this afternoon...northeast winds 15 to 25 knots. a chance
of snow showers. waves 5 to 9 feet occasionally to 11 feet. 
.tonight...north winds 10 to 20 knots diminishing to 5 to
15 knots by midnight, then increasing to 10 to 20 knots late. a
chance of snow. waves subsiding to 1 to 3 feet. 
.friday...north winds 15 to 25 knots. snow likely. waves building
to 4 to 8 feet occasionally to 10 feet. 
.friday night...north winds 10 to 20 knots. a chance of snow.
waves subsiding to 3 to 5 feet occasionally to 7 feet. 
.saturday...north winds 10 to 20 knots diminishing to 5 to
15 knots in the afternoon. a chance of snow showers. waves
subsiding to 2 to 4 feet. 
.saturday night...north winds 10 to 20 knots increasing to 15 to
25 knots after midnight. waves subsiding to 1 to 3 feet, then
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. waves building to 4 to 7 feet occasionally to
9 feet. 
.sunday night...north winds 20 to 30 knots. waves building to
5 to 9 feet occasionally to 11 feet. 
.monday...north winds 15 to 25 knots veering southeast. waves
subsiding to calm to 2 feet, then building to 2 to 4 feet. 
.tuesday...south winds 15 to 25 knots. a chance of snow showers.
waves building to 3 to 6 feet occasionally to 8 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 192100
glfls 
expires:202602200900;;920469

open lake forecast for lake superior
national weather service marquette mi
400 pm est thu feb 19 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 29.7 inch low over western lake superior this afternoon 
phases with a 29.4 inch low lifting northeast into the great lakes. 
this low arrives at central lake michigan friday morning at 29.2 
inches then weakens to 29.6 inches as it moves over northern lower 
michigan to lake huron on friday, extending 29.7 to 29.5 inch 
troughing over lake superior during the day. the low gradually 
weakens through the remainder of the weekend to 30.0 inches over the 
lower great lakes as strong high pressure expands over the plains. 
high pressure builds over lake superior through monday night at 30.5 
inches as the high pressure shifts east. behind the ridging, a 
deepening 29.6 inch clipper low moves into the northern plains on 
tuesday.



lsz264-200900-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
400 pm est thu feb 19 2026

.late this afternoon...southeast winds 15 to 25 knots. a slight
chance of snow showers. waves 6 to 10 feet occasionally to
13 feet. 
.tonight...southeast winds 10 to 20 knots becoming east 5 to
15 knots by midnight, then increasing to 10 to 20 knots late. a
chance of snow. a slight chance of rain after midnight. waves
subsiding to 2 to 4 feet. 
.friday...northeast winds 15 to 25 knots backing north by mid
afternoon. snow. waves building to 4 to 8 feet occasionally to
10 feet. 
.friday night...north winds 10 to 20 knots. a chance of snow.
freezing spray after midnight. waves subsiding to 3 to 5 feet
occasionally to 7 feet. 
.saturday...north winds 10 to 20 knots diminishing to 5 to
15 knots in the afternoon. a chance of snow showers in the
morning. waves subsiding to 2 to 4 feet. 
.saturday night...north winds 10 to 20 knots increasing to 15 to
25 knots after midnight. waves subsiding to 1 to 3 feet, then
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 in the afternoon. waves
building to 5 to 8 feet occasionally to 10 feet. 
.sunday night...north gales to 35 knots diminishing to 20 to
30 knots after midnight. 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 calm to
2 feet, then building to 3 to 5 feet occasionally to 7 feet. 
.tuesday...south winds 15 to 25 knots increasing to 20 to
30 knots. freezing spray. a chance of snow showers. waves
building to 5 to 9 feet occasionally to 11 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 192100
glfls 
expires:202602200900;;920470

open lake forecast for lake superior
national weather service marquette mi
400 pm est thu feb 19 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 29.7 inch low over western lake superior this afternoon 
phases with a 29.4 inch low lifting northeast into the great lakes. 
this low arrives at central lake michigan friday morning at 29.2 
inches then weakens to 29.6 inches as it moves over northern lower 
michigan to lake huron on friday, extending 29.7 to 29.5 inch 
troughing over lake superior during the day. the low gradually 
weakens through the remainder of the weekend to 30.0 inches over the 
lower great lakes as strong high pressure expands over the plains. 
high pressure builds over lake superior through monday night at 30.5 
inches as the high pressure shifts east. behind the ridging, a 
deepening 29.6 inch clipper low moves into the northern plains on 
tuesday.



lsz265-200900-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
400 pm est thu feb 19 2026

.late this afternoon...southeast winds 10 to 20 knots. waves 2 to
4 feet. 
.tonight...southeast winds 10 to 20 knots backing northeast late.
a chance of snow after midnight. waves subsiding to calm to
2 feet, then building to 2 to 4 feet. 
.friday...northeast winds 15 to 25 knots backing north by mid
afternoon. snow. waves building to 4 to 7 feet occasionally to
9 feet, then subsiding to 3 to 6 feet occasionally to 8 feet. 
.friday night...north winds 15 to 25 knots backing northwest
late. snow likely in the evening, then a chance of snow after
midnight. waves 3 to 6 feet occasionally to 8 feet. 
.saturday...north winds 15 to 25 knots. snow showers likely in
the morning, then a slight chance of snow showers in the
afternoon. 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 20 to 30 knots increasing to gales to
35 knots in the afternoon. waves building to 6 to 9 feet
occasionally to 11 feet. 
.sunday night...north gales to 35 knots. waves building to 9 to
12 feet occasionally to 15 feet. 
.monday...north winds 20 to 30 knots becoming south 10 to
20 knots. waves subsiding to 1 to 3 feet, then building to 2 to
4 feet. 
.tuesday...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 6 feet occasionally to 8 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 192100
glfls 
expires:202602200900;;920471

open lake forecast for lake superior
national weather service marquette mi
400 pm est thu feb 19 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 29.7 inch low over western lake superior this afternoon 
phases with a 29.4 inch low lifting northeast into the great lakes. 
this low arrives at central lake michigan friday morning at 29.2 
inches then weakens to 29.6 inches as it moves over northern lower 
michigan to lake huron on friday, extending 29.7 to 29.5 inch 
troughing over lake superior during the day. the low gradually 
weakens through the remainder of the weekend to 30.0 inches over the 
lower great lakes as strong high pressure expands over the plains. 
high pressure builds over lake superior through monday night at 30.5 
inches as the high pressure shifts east. behind the ridging, a 
deepening 29.6 inch clipper low moves into the northern plains on 
tuesday.



lsz266-200900-
lake superior east of a line from manitou island to marquette mi
and west of a line from grand marais mi to the us/canadian border
beyond 5nm from shore-
400 pm est thu feb 19 2026

.late this afternoon...southeast winds 15 to 25 knots. waves 4 to
8 feet occasionally to 10 feet. 
.tonight...southeast winds 15 to 25 knots backing east by
midnight. a slight chance of snow in the evening, then snow,
possibly mixed with freezing rain and rain likely after midnight.
waves subsiding to 2 to 4 feet, then building to 3 to 5 feet
occasionally to 7 feet. 
.friday...east winds 15 to 25 knots becoming northeast 20 to
30 knots. rain likely in the morning. snow. a slight chance of
rain in the afternoon. waves building to 4 to 7 feet occasionally
to 9 feet, then subsiding to 3 to 6 feet occasionally to 8 feet. 
.friday night...northeast winds 20 to 30 knots diminishing to
15 to 25 knots late. a slight chance of rain in the evening. a
chance of snow. waves 3 to 6 feet occasionally to 8 feet. 
.saturday...northeast winds 15 to 25 knots. 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. a chance of snow showers. freezing spray in the
afternoon. waves building to 7 to 10 feet occasionally to
13 feet. 
.sunday night...north gales to 40 knots. heavy freezing spray.
waves building to 9 to 12 feet occasionally to 15 feet. 
.monday...north winds 20 to 30 knots diminishing to 15 to
25 knots. heavy freezing spray. waves subsiding to 2 to 4 feet,
then building to 3 to 5 feet occasionally to 7 feet. 
.tuesday...south winds 20 to 30 knots increasing to gales to
35 knots. freezing spray. a chance of snow showers. waves
building to 8 to 11 feet occasionally to 14 feet. 

note, wave height forecasts are for ice free areas.

$$