fzus61 kbuf 190302
glflo 
expires:202602191000;;875977

open lake forecast for lake ontario
national weather service buffalo ny
1002 pm est wed feb 18 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...an elongated 29.4 inch low will move into the central 
great lakes today, with one piece of this low passing just south of 
the lake tonight. a 29.3 inch low will develop over the central 
plains thursday, then move to the central great lakes by friday 
night, weakening to 29.7 inches as it moves just north of lake 
ontario saturday. a 30.4 inch high will then slowly build east 
across the great lakes through early next week.


loz064-065-191000-
lake ontario open waters from sodus bay to the saint lawrence
river-
1002 pm est wed feb 18 2026

.rest of tonight...northeast winds 15 to 25 knots. a chance of
snow showers late this evening. waves 3 to 5 feet subsiding to
2 to 4 feet. 
.thursday...northeast winds 5 to 15 knots. waves 1 to 3 feet. 
.thursday night...east winds 10 to 15 knots increasing to 15 to
20 knots. a chance of rain overnight. waves 1 to 3 feet. 
.friday...east winds 15 to 20 knots becoming southeast. rain.
waves 1 to 3 feet building to 2 to 4 feet. 
.friday night...southeast winds 15 to 20 knots becoming west.
rain and snow. waves 1 to 3 feet building to 2 to 4 feet. 
.saturday...northwest winds 15 to 20 knots becoming northeast
5 to 15 knots. a chance of snow. waves 2 to 4 feet subsiding to
1 to 3 feet. 
.sunday...east winds 5 to 15 knots becoming northeast. a chance
of snow. waves 2 feet or less. 
.monday...northeast winds 10 to 15 knots becoming northwest 15 to
20 knots. a chance of snow during the day. waves 1 to 3 feet
building to 2 to 4 feet. 

$$

fzus61 kbuf 190302
glflo 
expires:202602191000;;875976

open lake forecast for lake ontario
national weather service buffalo ny
1002 pm est wed feb 18 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...an elongated 29.4 inch low will move into the central 
great lakes today, with one piece of this low passing just south of 
the lake tonight. a 29.3 inch low will develop over the central 
plains thursday, then move to the central great lakes by friday 
night, weakening to 29.7 inches as it moves just north of lake 
ontario saturday. a 30.4 inch high will then slowly build east 
across the great lakes through early next week.


loz062-063-191000-
lake ontario open waters from the niagara river to sodus bay-
1002 pm est wed feb 18 2026

.rest of tonight...northeast winds 15 to 25 knots becoming east.
waves 5 to 9 feet subsiding to 4 to 7 feet. waves occasionally
around 11 feet. 
.thursday...east winds 15 to 20 knots. waves 3 to 6 feet. 
.thursday night...east winds 15 to 25 knots. a chance of rain
overnight. waves 3 to 6 feet building to 4 to 7 feet. waves
occasionally around 9 feet. 
.friday...east winds 15 to 25 knots becoming southeast. rain.
waves 5 to 8 feet. waves occasionally around 10 feet. 
.friday night...south winds 15 to 20 knots becoming west. rain
with snow likely. waves 3 to 6 feet subsiding to 2 to 4 feet. 
.saturday...west winds 15 to 20 knots becoming northeast 10 to
15 knots. a chance of snow. waves 2 to 4 feet subsiding to 1 to
3 feet. 
.sunday...east winds 10 to 15 knots becoming northeast 15 to
20 knots. a chance of snow. waves 1 to 3 feet building to 2 to
4 feet. 
.monday...north winds 15 to 20 knots becoming northwest. a chance
of snow during the day. waves 2 to 4 feet building to 3 to
5 feet. 

$$

fzus61 kcle 190220
glfle 
expires:202602190930;;874739

open lake forecast for lake erie
national weather service cleveland oh
920 pm est wed feb 18 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 front should waver between the southern shore of lake erie and
central ohio through friday morning. during friday morning through
afternoon, an occluded front should sweep eastward across lake
erie as a low wobbles east-northeastward from southern wisconsin
toward northern lower michigan and weakens to 29.50 inches.
behind the occluded front, a trough averaging 30.10 inches should
linger over the lake erie region through this monday. 


lez164-165-190930-
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-
920 pm est wed feb 18 2026

.overnight...southeast winds 5 to 10 knots. areas of dense
fog. waves in ice free areas 1 foot or less. 
.thursday...southeast winds 5 to 15 knots becoming east. areas of
fog in the morning. a slight chance of rain showers in the
afternoon. waves 1 foot or less. 
.thursday night...east winds 10 to 15 knots becoming southeast.
rain showers. waves 2 feet or less. 
.friday...south winds 15 to 25 knots becoming southwest. rain
showers in the morning, then a chance of rain showers in the
afternoon. waves 1 to 3 feet building to 3 to 5 feet. 
.friday night...west winds 15 to 25 knots. waves 3 to 5 feet
subsiding to 2 to 4 feet. 
.saturday...west winds 15 to 20 knots diminishing to 5 to
15 knots. waves 1 to 3 feet. 
.sunday...west winds 15 to 25 knots becoming northwest. a chance
of snow. waves 1 to 3 feet building to 2 to 4 feet. 
.monday...northwest winds 15 to 25 knots. waves 2 to 4 feet
subsiding to 1 to 3 feet. 

wave heights are for ice free areas.

$$

fzus61 kcle 190220
glfle 
expires:202602190930;;874740

open lake forecast for lake erie
national weather service cleveland oh
920 pm est wed feb 18 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 front should waver between the southern shore of lake erie and
central ohio through friday morning. during friday morning through
afternoon, an occluded front should sweep eastward across lake
erie as a low wobbles east-northeastward from southern wisconsin
toward northern lower michigan and weakens to 29.50 inches.
behind the occluded front, a trough averaging 30.10 inches should
linger over the lake erie region through this monday. 


lez061-166>169-190930-
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-
920 pm est wed feb 18 2026

.overnight...northeast winds 5 to 10 knots becoming east.
areas of fog. the lake is mostly ice covered.
.thursday...east winds 5 to 15 knots. areas of fog in the
morning. a slight chance of rain showers in the afternoon. 
.thursday night...east winds 10 to 15 knots becoming southeast. a
chance of rain showers in the evening, then rain showers
overnight. 
.friday...southeast winds 15 to 25 knots becoming southwest. rain
showers likely in the morning, then a chance of rain showers in
the afternoon. 
.friday night...west winds 15 to 25 knots. a chance of snow
showers in the evening. 
.saturday...west winds 15 to 20 knots diminishing to 5 to
15 knots. 
.sunday...west winds 15 to 25 knots becoming north. a chance of
snow. 
.monday...northwest winds 15 to 25 knots. 

waves omitted due to the lake being mostly ice covered.

$$

fzus61 kcle 190220
glfle 
expires:202602190930;;874738

open lake forecast for lake erie
national weather service cleveland oh
920 pm est wed feb 18 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 front should waver between the southern shore of lake erie and
central ohio through friday morning. during friday morning through
afternoon, an occluded front should sweep eastward across lake
erie as a low wobbles east-northeastward from southern wisconsin
toward northern lower michigan and weakens to 29.50 inches.
behind the occluded front, a trough averaging 30.10 inches should
linger over the lake erie region through this monday. 


lez162-163-190930-
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-
920 pm est wed feb 18 2026

.overnight...southeast winds 5 to 10 knots. areas of fog.
the lake is mostly ice covered.
.thursday...southeast winds 10 to 15 knots becoming east. areas
of dense fog in the morning. a slight chance of rain showers in
the afternoon. 
.thursday night...east winds 10 to 15 knots becoming southeast.
rain showers. 
.friday...south winds 15 to 25 knots becoming west. rain showers
in the morning, then a chance of rain showers in the afternoon. 
.friday night...west winds 15 to 25 knots. 
.saturday...west winds 5 to 15 knots. 
.sunday...northwest winds 15 to 25 knots. a chance of snow during
the day. 
.monday...northwest winds 15 to 25 knots diminishing to 10 to
15 knots. 

waves omitted due to the lake being mostly ice covered.

$$

fzus63 kdtx 190301
glfsc 
expires:202602191115;;875787

lake st clair forecast
national weather service detroit/pontiac mi
1001 pm est wed feb 18 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...areas of locally dense marine fog persist tonight with
decreasing precipitation chances. winds hold from the ese into
thursday with slightly weaker flow expected. potential exists for
additional gusts to gales, mainly over northern lake huron 
friday.


lcz460-191115-
lake st clair-
1001 pm est wed feb 18 2026

.rest of tonight...southeast winds 5 to 10 knots increasing to 10 to
15 knots early in the morning. mostly cloudy.
.thursday...east winds 10 to 15 knots. mostly cloudy.
.thursday night...east winds 15 to 20 knots. light rain likely early
in the evening...then light rain in the late evening and overnight.
.friday...southeast winds 15 to 20 knots becoming southwest 20 to 25
knots with gusts to 30 knots in the late morning and afternoon.
mostly cloudy. light rain early in the morning...then a chance of
light rain in the late morning and afternoon. a small craft advisory
may be needed.
.friday night...west winds 15 to 20 knots. mostly cloudy.
.saturday...west winds 10 to 15 knots diminishing to 5 to 10 knots
in the evening. mostly cloudy.
.sunday...north winds 15 to 20 knots. mostly cloudy with a chance of
light snow.
.monday...north winds 20 to 25 knots. partly cloudy.

waves omitted due to ice coverage.

$$

fzus63 kdtx 190300
glflh 
expires:202602191100;;875758

open lake forecast for lake huron
national weather service detroit/pontiac mi
1000 pm est wed feb 18 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...areas of locally dense marine fog persist tonight with
decreasing precipitation chances. winds hold from the ese into
thursday with slightly weaker flow expected. potential exists for
additional gusts to gales over northern lake huron friday.


lhz462>464-191100-
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-
1000 pm est wed feb 18 2026

.rest of tonight...southeast winds 10 to 15 knots. 
.thursday...southeast winds 10 to 15 knots. 
.thursday night...east winds 15 to 20 knots becoming southeast
20 to 25 knots after midnight. rain likely after midnight. 
.friday...southeast winds 15 to 20 knots becoming south 10 to
15 knots early in the afternoon. rain in the morning...then a
chance of rain in the afternoon. 
.friday night...southwest winds 15 to 20 knots becoming west
10 to 15 knots after midnight. a chance of rain and snow in the
evening. 
.saturday...west winds 10 to 15 knots veering to the 10 to
15 knots late in the evening. a chance of snow late in the
afternoon. 
.sunday...north winds 10 to 15 knots increasing to 20 to
25 knots. a chance of snow. 
.monday...north winds 20 to 25 knots with gusts to around
30 knots decreasing to 10 to 15 knots. 

waves omitted due to ice coverage.

$$

fzus63 kdtx 190300
glflh 
expires:202602191100;;875756

open lake forecast for lake huron
national weather service detroit/pontiac mi
1000 pm est wed feb 18 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...areas of locally dense marine fog persist tonight with
decreasing precipitation chances. winds hold from the ese into
thursday with slightly weaker flow expected. potential exists for
additional gusts to gales over northern lake huron friday.


lhz361-362-191100-
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-
1000 pm est wed feb 18 2026

...gale watch in effect from late thursday night through friday
afternoon...

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

wave heights are for ice free areas.

$$

fzus63 kdtx 190300
glflh 
expires:202602191100;;875757

open lake forecast for lake huron
national weather service detroit/pontiac mi
1000 pm est wed feb 18 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...areas of locally dense marine fog persist tonight with
decreasing precipitation chances. winds hold from the ese into
thursday with slightly weaker flow expected. potential exists for
additional gusts to gales over northern lake huron friday.


lhz363-191100-
lake huron from sturgeon point to alabaster mi beyond 5nm off
shore-
1000 pm est wed feb 18 2026

.rest of tonight...east winds 10 to 15 knots. 
.thursday...southeast winds 10 to 15 knots. 
.thursday night...east winds 10 to 15 knots increasing to 15 to
20 knots in the late evening and overnight. a chance of rain
after midnight. 
.friday...east winds 20 to 25 knots becoming southeast 15 to
20 knots in the late morning and afternoon. rain in the morning...
then rain with snow likely in the afternoon. 
.friday night...southwest winds 15 to 20 knots becoming west
10 to 15 knots after midnight. a chance of snow and rain in the
evening. 
.saturday...west winds 10 to 15 knots veering to the north. a
chance of snow late in the afternoon. 
.sunday...north winds 15 to 20 knots increasing to 20 to 25 knots
with gusts to around 30 knots by midnight. a chance of snow early
in the morning. 
.monday...north winds 20 to 25 knots with gusts to around
30 knots becoming northwest 15 to 20 knots . 

waves omitted due to ice coverage.

$$

fzus63 kmkx 190240
glflm 
expires:202602191030;;875236

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
840 pm cst wed feb 18 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...

gusty east winds continue into tonight across the northern tip of
lake michigan, with a light southwesterly breeze further south. 
winds will ease later tonight into thursday and become southerly 
as low pressure occludes near lake superior and weakens to 29.5 
inches over northern minnesota. winds will increase thursday night
into friday night as another strong low pressure system around 
29.2 inches tracks from iowa into central wisconsin. that low will
cross northern lake michigan friday morning and gradually weaken 
through saturday. a few gale force gusts are possible during the 
low's passage, with trends being monitored for possible headlines 
in coming forecasts. gusty northerly winds are expected sunday 
into monday.


lmz080-669-671-673-675-777-779-870-872-874-876-878-191030-
lake michigan from michigan city in to st. joseph mi 5 nm
offshore to mid lake-
lake michigan from sheboygan to port washington wi 5 nm offshore
to mid lake-
lake michigan from port washington to north point light wi 5 nm
offshore to mid lake-
lake michigan from north point light to wind point wi 5 nm
offshore to mid lake-
lake michigan from wind point wi to winthrop harbor il 5 nm
offshore to mid lake-
lake michigan from winthrop harbor to wilmette harbor il 5 nm
offshore to mid lake-
lake michigan from wilmette harbor il to michigan city in 5 nm
offshore to mid lake-
lake michigan from whitehall to pentwater mi 5 nm offshore to mid
lake-
lake michigan from grand haven to whitehall mi 5 nm offshore to
mid lake-
lake michigan from holland to grand haven mi 5 nm offshore to mid
lake-
lake michigan from south haven to holland mi 5 nm offshore to mid
lake-
lake michigan from st. joseph to south haven mi 5 nm offshore to
mid lake-
840 pm cst wed feb 18 2026

sheboygan wi to pentwater mi south...

.rest of tonight...southwest winds 10 to 20 kt diminishing to
10 to 15 kt. waves 3 to 5 ft. 
.thursday...south winds 5 to 10 kt backing to east 10 to 15 kt.
chance of rain in the afternoon. waves 1 to 3 ft subsiding to
1 to 2 ft. 
.thursday night...east winds 10 to 20 kt veering to south 15 to
25 kt. rain in the evening, then rain likely overnight. waves
2 to 4 ft building to 4 to 7 ft occasionally to 9 ft.
.friday...southwest gales to 35 kt becoming west. chance of rain
and snow likely in the morning, then chance of rain and snow in
the afternoon. waves 8 to 11 ft occasionally to 14 ft building to
10 to 14 ft occasionally to 18 ft. 
.friday night...west 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. 
.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 15 to 25 kt increasing to
30 kt. chance of snow. waves 4 to 6 ft occasionally to 8 ft
building to 6 to 9 ft occasionally to 12 ft. 
.sunday...northwest winds to 30 kt. chance of snow. waves 8 to
12 ft occasionally to 16 ft building to 10 to 14 ft occasionally
to 18 ft. 
.monday...north winds to 30 kt. waves 12 to 16 ft occasionally to
21 ft.  

$$

fzus63 kmkx 190240
glflm 
expires:202602191030;;875235

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
840 pm cst wed feb 18 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...

gusty east winds continue into tonight across the northern tip of
lake michigan, with a light southwesterly breeze further south. 
winds will ease later tonight into thursday and become southerly 
as low pressure occludes near lake superior and weakens to 29.5 
inches over northern minnesota. winds will increase thursday night
into friday night as another strong low pressure system around 
29.2 inches tracks from iowa into central wisconsin. that low will
cross northern lake michigan friday morning and gradually weaken 
through saturday. a few gale force gusts are possible during the 
low's passage, with trends being monitored for possible headlines 
in coming forecasts. gusty northerly winds are expected sunday 
into monday.


lmz261-362-364-366-563-565-567-868-191030-
lake michigan from seul choix point to rock island passage 5 nm
offshore to mid lake-
lake michigan south of a line from seul choix point to the
mackinac bridge and north of a line from charlevoix mi to south
fox island 5 nm offshore-
lake michigan from charlevoix to point betsie mi 5 nm offshore to
mid lake-
lake michigan from point betsie to manistee mi 5 nm offshore to
mid lake-
lake michigan from rock island passage to sturgeon bay wi-
lake michigan from sturgeon bay to two rivers wi 5 nm offshore to
mid lake-
lake michigan from two rivers to sheboygan wi 5 nm offshore to
mid lake-
lake michigan from pentwater to manistee mi 5 nm offshore to mid
lake-
840 pm cst wed feb 18 2026

sheboygan wi to pentwater mi north...

.rest of tonight...east winds to 30 kt over the northern tip of
the lake, south to southwest winds to 15 kt elsewhere. slight 
chance of rain and light freezing rain through early evening, then
slight chance of light freezing rain overnight. waves 4 to 7 ft 
occasionally to 9 ft subsiding to 4 to 6 ft occasionally to 8 ft. 
.thursday...east winds to 30 kt over the northern tip of the lake,
diminishing mid day then redeveloping late. south winds to 15 kt
elsewhere, turning east late. slight chance of rain in the 
afternoon. waves 2 to 4 ft subsiding to 1 to 3 ft.
.thursday night...east winds to 30 kt, with gales possible over
the northern tip of the lake. chance of rain in the evening, then
rain with a chance of freezing rain overnight. waves 4 to 6 ft 
occasionally to 8 ft building to 4 to 7 ft occasionally to 9 ft. 
.friday...southeast winds to 30 kt backing to northwest to 30 kt.
rain likely with snow in the morning, then rain and snow likely 
in the afternoon. waves 6 to 9 ft occasionally to 12 ft. 
.friday night...northwest winds 15 to 25 kt diminishing to 10 to
20 kt. chance of snow showers in the evening. waves 6 to 9 ft
occasionally to 12 ft. 
.saturday...northwest winds 10 to 20 kt. 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 3 to 5 ft building to 5 to 8 ft
occasionally to 10 ft. 
.sunday...north winds to 30 kt. waves 7 to 10 ft occasionally to
13 ft building to 8 to 11 ft occasionally to 14 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.  

$$

fzus63 kmqt 190301
glfls 
expires:202602190900;;875788

open lake forecast for lake superior
national weather service marquette mi
1000 pm est wed feb 18 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...

29.7 inch troughing persists over lake superior through thursday as 
a 29.5 inch low over northern wisconsin tonight moves east to upper 
michigan and weakens to 29.7 inches through thursday morning. 
pressure then falls to around 29.6 inches over the lake for friday 
as a 29.3 inch low over missouri thursday afternoon tracks to 
northern lower michigan by friday afternoon. pressure then rises 
saturday through monday as the low pressure dissipates over the 
great lakes and high pressure of near 31.0 inches descends southeast 
into the region. pressure over the lake reaches at least 30.4 inches 
by monday night.



lsz162-190900-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
1000 pm est wed feb 18 2026 /900 pm cst wed feb 18 2026/

...gale warning in effect until 1 am est /midnight cst/
thursday...

.rest of tonight...east gales to 40 knots. snow showers. waves
9 to 12 feet occasionally to 15 feet subsiding to 7 to 10 feet
occasionally to 13 feet. 
.thursday...east gales to 35 knots diminishing to 20 to 30 knots
by late morning, then backing northeast by mid afternoon. snow
showers likely in the morning, then a chance of snow showers in
the afternoon. waves subsiding to 4 to 7 feet occasionally to
9 feet. 
.thursday night...northeast winds 20 to 30 knots. a chance of
snow. waves subsiding to 3 to 5 feet occasionally to 7 feet. 
.friday...northeast winds 20 to 30 knots. a chance of snow. waves
building to 3 to 6 feet occasionally to 8 feet. 
.friday night...north winds 15 to 25 knots backing northwest
after midnight. a 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. a chance of
snow showers. waves calm to 2 feet. 
.sunday...northwest winds 10 to 20 knots veering north. waves
calm to 2 feet. 
.monday...north winds 5 to 15 knots veering east. waves calm to
2 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 190301
glfls 
expires:202602190900;;875789

open lake forecast for lake superior
national weather service marquette mi
1000 pm est wed feb 18 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...

29.7 inch troughing persists over lake superior through thursday as 
a 29.5 inch low over northern wisconsin tonight moves east to upper 
michigan and weakens to 29.7 inches through thursday morning. 
pressure then falls to around 29.6 inches over the lake for friday 
as a 29.3 inch low over missouri thursday afternoon tracks to 
northern lower michigan by friday afternoon. pressure then rises 
saturday through monday as the low pressure dissipates over the 
great lakes and high pressure of near 31.0 inches descends southeast 
into the region. pressure over the lake reaches at least 30.4 inches 
by monday night.



lsz263-190900-
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 est wed feb 18 2026

...gale warning in effect until 1 am est thursday...

.rest of tonight...east gales to 45 knots. a chance of snow
showers late in the evening, then snow showers after midnight.
waves 15 to 20 feet occasionally to 25 feet subsiding to 11 to
15 feet occasionally to 19 feet. 
.thursday...east gales to 35 knots diminishing to 20 to 30 knots.
snow showers in the morning, then a chance of snow showers in the
afternoon. waves subsiding to 8 to 11 feet occasionally to
14 feet. 
.thursday night...east winds 20 to 30 knots becoming northeast
gales to 35 knots late. a chance of snow. a slight chance of
freezing rain after midnight. waves subsiding to 6 to 9 feet
occasionally to 11 feet. 
.friday...northeast winds 20 to 30 knots. a chance of snow. waves
subsiding to 5 to 8 feet occasionally to 10 feet. 
.friday night...north winds 15 to 25 knots. a chance of snow
showers. waves subsiding to 3 to 6 feet occasionally to 8 feet. 
.saturday...north winds 10 to 20 knots backing northwest in the
afternoon. a chance of snow showers. waves subsiding to 1 to
3 feet. 
.saturday night...northwest winds 10 to 20 knots veering north
after midnight. a chance of snow showers. waves building to 3 to
5 feet occasionally to 7 feet. 
.sunday...northwest winds 10 to 20 knots veering north. waves
building to 3 to 6 feet occasionally to 8 feet. 
.monday...north winds 5 to 15 knots veering east. waves subsiding
to calm to 2 feet, then building to 2 to 4 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 190301
glfls 
expires:202602190900;;875790

open lake forecast for lake superior
national weather service marquette mi
1000 pm est wed feb 18 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...

29.7 inch troughing persists over lake superior through thursday as 
a 29.5 inch low over northern wisconsin tonight moves east to upper 
michigan and weakens to 29.7 inches through thursday morning. 
pressure then falls to around 29.6 inches over the lake for friday 
as a 29.3 inch low over missouri thursday afternoon tracks to 
northern lower michigan by friday afternoon. pressure then rises 
saturday through monday as the low pressure dissipates over the 
great lakes and high pressure of near 31.0 inches descends southeast 
into the region. pressure over the lake reaches at least 30.4 inches 
by monday night.



lsz264-190900-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
1000 pm est wed feb 18 2026

...gale warning in effect until 7 am est thursday...

.rest of tonight...east gales to 40 knots. a slight chance of
freezing rain late in the evening. snow showers. waves 15 to
20 feet occasionally to 25 feet subsiding to 11 to 15 feet
occasionally to 19 feet. 
.thursday...east gales to 35 knots diminishing to 20 to 30 knots
by mid afternoon. snow showers in the morning, then a chance of
snow showers in the afternoon. waves subsiding to 8 to 11 feet
occasionally to 14 feet. 
.thursday night...east winds 20 to 30 knots increasing to gales
to 35 knots by midnight. a chance of snow. a slight chance of
freezing rain after midnight. waves subsiding to 6 to 9 feet
occasionally to 11 feet, then building to 7 to 10 feet
occasionally to 13 feet. 
.friday...east gales to 35 knots backing northeast in the
afternoon. a chance of snow. waves subsiding to 5 to 8 feet
occasionally to 10 feet. 
.friday night...northeast winds 15 to 25 knots backing north
after midnight. a slight chance of snow showers. freezing spray
after midnight. waves subsiding to 3 to 6 feet occasionally to
8 feet. 
.saturday...north winds 10 to 20 knots. waves subsiding to 2 to
4 feet. 
.saturday night...north winds 10 to 20 knots increasing to 15 to
25 knots after midnight. freezing spray after midnight. waves
subsiding to 1 to 3 feet, then building to 3 to 6 feet
occasionally to 8 feet. 
.sunday...north winds 15 to 25 knots. heavy freezing spray. waves
building to 5 to 9 feet occasionally to 11 feet. 
.monday...north winds 15 to 25 knots diminishing to 10 to
20 knots. heavy freezing spray. waves subsiding to calm to
2 feet, then building to 2 to 4 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 190301
glfls 
expires:202602190900;;875791

open lake forecast for lake superior
national weather service marquette mi
1000 pm est wed feb 18 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...

29.7 inch troughing persists over lake superior through thursday as 
a 29.5 inch low over northern wisconsin tonight moves east to upper 
michigan and weakens to 29.7 inches through thursday morning. 
pressure then falls to around 29.6 inches over the lake for friday 
as a 29.3 inch low over missouri thursday afternoon tracks to 
northern lower michigan by friday afternoon. pressure then rises 
saturday through monday as the low pressure dissipates over the 
great lakes and high pressure of near 31.0 inches descends southeast 
into the region. pressure over the lake reaches at least 30.4 inches 
by monday night.



lsz265-190900-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
1000 pm est wed feb 18 2026

...gale warning in effect until 7 am est thursday...

.rest of tonight...east gales to 40 knots. a chance of snow
showers, possibly mixed with freezing rain late in the evening,
then snow showers likely after midnight. waves 11 to 15 feet
occasionally to 19 feet subsiding to 8 to 11 feet occasionally to
14 feet. 
.thursday...east gales to 35 knots veering southeast by late
morning, then becoming east 20 to 30 knots by mid afternoon. snow
showers likely in the morning, then a slight chance of rain and
snow showers in the afternoon. waves subsiding to 3 to 6 feet
occasionally to 8 feet. 
.thursday night...east winds 20 to 30 knots increasing to gales
to 35 knots by midnight. a slight chance of rain in the evening.
a chance of snow, possibly mixed with freezing rain. waves
building to 6 to 9 feet occasionally to 11 feet. 
.friday...east gales to 35 knots backing northeast in the
afternoon. snow likely. waves building to 7 to 10 feet
occasionally to 13 feet, then subsiding to 5 to 8 feet
occasionally to 10 feet. 
.friday night...northeast winds 20 to 30 knots backing northwest
after midnight. a chance of snow showers. waves subsiding to 3 to
6 feet occasionally to 8 feet. 
.saturday...northwest winds 15 to 25 knots increasing to 20 to
30 knots in the afternoon. a chance of snow showers. waves
subsiding to 2 to 4 feet. 
.saturday night...northwest winds 15 to 25 knots increasing to
20 to 30 knots after midnight. a chance of snow showers. waves
building to 3 to 6 feet occasionally to 8 feet. 
.sunday...northwest winds 20 to 30 knots. waves building to 7 to
10 feet occasionally to 13 feet. 
.monday...north winds 15 to 25 knots becoming northwest 10 to
20 knots. waves subsiding to calm to 2 feet, then building to
1 to 3 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 190301
glfls 
expires:202602190900;;875792

open lake forecast for lake superior
national weather service marquette mi
1000 pm est wed feb 18 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...

29.7 inch troughing persists over lake superior through thursday as 
a 29.5 inch low over northern wisconsin tonight moves east to upper 
michigan and weakens to 29.7 inches through thursday morning. 
pressure then falls to around 29.6 inches over the lake for friday 
as a 29.3 inch low over missouri thursday afternoon tracks to 
northern lower michigan by friday afternoon. pressure then rises 
saturday through monday as the low pressure dissipates over the 
great lakes and high pressure of near 31.0 inches descends southeast 
into the region. pressure over the lake reaches at least 30.4 inches 
by monday night.



lsz266-190900-
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 est wed feb 18 2026

...gale warning in effect until 7 am est thursday...

.rest of tonight...east gales to 40 knots. a slight chance of
freezing rain late in the evening. a chance of snow showers.
waves 12 to 17 feet occasionally to 21 feet subsiding to 10 to
14 feet occasionally to 18 feet. 
.thursday...east gales to 40 knots. a chance of snow showers. a
slight chance of rain showers in the afternoon. waves subsiding
to 6 to 9 feet occasionally to 11 feet. 
.thursday night...east gales to 40 knots. a chance of freezing
rain and snow, possibly mixed with rain. waves subsiding to 5 to
8 feet occasionally to 10 feet, then building to 6 to 9 feet
occasionally to 11 feet. 
.friday...east gales to 40 knots. freezing rain likely, possibly
mixed with rain in the morning. snow likely. waves building to
7 to 10 feet occasionally to 13 feet, then subsiding to 5 to
8 feet occasionally to 10 feet. 
.friday night...east winds 20 to 30 knots backing northeast after
midnight. a chance of snow showers. waves subsiding to 4 to
7 feet occasionally to 9 feet. 
.saturday...north winds 20 to 30 knots backing northwest in the
afternoon. a chance of snow showers. waves subsiding to 2 to
4 feet. 
.saturday night...northwest winds 20 to 30 knots veering north
after midnight. a chance of snow showers. freezing spray after
midnight. waves building to 4 to 7 feet occasionally to 9 feet. 
.sunday...north winds 20 to 30 knots. heavy freezing spray. waves
building to 7 to 11 feet occasionally to 14 feet. 
.monday...north winds 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. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 190301
glfls 
expires:202602190900;;875793

open lake forecast for lake superior
national weather service marquette mi
1000 pm est wed feb 18 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...

29.7 inch troughing persists over lake superior through thursday as 
a 29.5 inch low over northern wisconsin tonight moves east to upper 
michigan and weakens to 29.7 inches through thursday morning. 
pressure then falls to around 29.6 inches over the lake for friday 
as a 29.3 inch low over missouri thursday afternoon tracks to 
northern lower michigan by friday afternoon. pressure then rises 
saturday through monday as the low pressure dissipates over the 
great lakes and high pressure of near 31.0 inches descends southeast 
into the region. pressure over the lake reaches at least 30.4 inches 
by monday night.



lsz267-190900-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
1000 pm est wed feb 18 2026

...gale warning in effect until 1 am est thursday...

.rest of tonight...east gales to 40 knots veering southeast by
midnight, then backing east late. freezing spray. a slight chance
of freezing rain late in the evening. a chance of snow showers.
waves 6 to 10 feet occasionally to 13 feet. 
.thursday...east gales to 35 knots becoming southeast 20 to
30 knots. a chance of snow showers. waves subsiding to 3 to
6 feet occasionally to 8 feet. 
.thursday night...east winds 20 to 30 knots increasing to gales
to 40 knots by midnight. a chance of rain, possibly mixed with
snow and freezing rain. waves building to 4 to 7 feet
occasionally to 9 feet. 
.friday...east gales to 35 knots. freezing rain likely, possibly
mixed with rain in the morning. snow likely. waves subsiding to
3 to 6 feet occasionally to 8 feet. 
.friday night...east winds 15 to 25 knots. a chance of snow
showers. waves subsiding to 2 to 4 feet. 
.saturday...northeast winds 15 to 25 knots backing northwest in
the afternoon. waves subsiding to 1 to 3 feet. 
.saturday night...north winds 15 to 25 knots diminishing to 10 to
20 knots after midnight. waves building to 2 to 4 feet. 
.sunday...north winds 15 to 25 knots. heavy freezing spray. waves
building to 3 to 5 feet occasionally to 7 feet, then subsiding to
2 to 4 feet. 
.monday...north winds 15 to 25 knots diminishing to 10 to
20 knots. heavy freezing spray. waves subsiding to 1 to 3 feet,
then building to 2 to 4 feet. 

note, wave height forecasts are for ice free areas.

$$