fzus63 kdtx 170800
glflh 
expires:202603171600;;832607

open lake forecast for lake huron
national weather service detroit/pontiac mi
400 am edt tue mar 17 2026

for waters beyond five nautical miles off shore on lake huron

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

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


lhz361-171600-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
400 am edt tue mar 17 2026

...gale warning in effect until 11 am edt this morning...
...heavy freezing spray warning in effect through this
afternoon...

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

wave heights are for ice free areas.

$$

fzus63 kdtx 170800
glflh 
expires:202603171600;;832608

open lake forecast for lake huron
national weather service detroit/pontiac mi
400 am edt tue mar 17 2026

for waters beyond five nautical miles off shore on lake huron

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

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


lhz362-363-462-171600-
lake huron from presque isle light to sturgeon point mi beyond
5nm off shore-
lake huron from sturgeon point to alabaster mi beyond 5nm off
shore-
lake huron from port austin to harbor beach beyond 5nm off shore-
400 am edt tue mar 17 2026

...gale warning in effect until 11 am edt this morning...
...heavy freezing spray warning in effect through this
afternoon...

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


$$

fzus63 kmqt 170801
glfls 
expires:202603172000;;832630

open lake forecast for lake superior
national weather service marquette mi
400 am edt tue mar 17 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 20.1 ridge will move through lake superior today. a 29.7 inch 
trough over the canadian prairie wednesday morning will begin to 
push towards the lake on wednesday, weakening to 29.8 inches over 
northern ontario wednesday night. weak ridging of around 30.1 inches 
will build over the lake on thursday ahead of the next clipper low 
approaching the region on friday at around 29.7 inches.



lsz264-172000-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
400 am edt tue mar 17 2026

...gale warning in effect until 8 am edt this morning...
...heavy freezing spray warning in effect until 2 pm edt this
afternoon...

.early this morning...north gales to 35 knots. heavy freezing
spray. isolated snow showers. waves 9 to 12 feet occasionally to
15 feet subsiding to 7 to 10 feet occasionally to 13 feet. 
.today...north winds 15 to 25 knots becoming northwest 10 to
20 knots in the afternoon, then becoming west 5 to 15 knots late.
heavy freezing spray through early afternoon. isolated snow
showers through early afternoon. waves subsiding to calm to
2 feet. 
.tonight...southwest winds 5 to 15 knots becoming south 10 to
20 knots after midnight. a slight chance of snow showers. waves
building to 3 to 5 feet occasionally to 7 feet. 
.wednesday...southwest winds 10 to 20 knots veering west late. a
slight chance of snow showers through early afternoon. waves 3 to
5 feet occasionally to 7 feet. 
.wednesday night...west winds 10 to 20 knots becoming north 5 to
15 knots after midnight. waves subsiding to 1 to 3 feet. 
.thursday...north winds 5 to 15 knots veering south by mid
afternoon. waves subsiding to calm to 2 feet. 
.thursday night...southwest winds 5 to 15 knots becoming west
10 to 20 knots after midnight. a chance of snow showers. waves
calm to 2 feet. 
.friday...northeast winds 10 to 20 knots becoming east 20 to
30 knots. a chance of snow showers. waves building to 5 to 8 feet
occasionally to 10 feet. 
.saturday...southeast winds 20 to 30 knots becoming north gales
to 40 knots. a chance of rain showers. a chance of snow showers.
waves building to 7 to 10 feet occasionally to 13 feet, then
subsiding to 5 to 8 feet occasionally to 10 feet. 

$$

fzus63 kmqt 170801
glfls 
expires:202603172000;;832631

open lake forecast for lake superior
national weather service marquette mi
400 am edt tue mar 17 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 20.1 ridge will move through lake superior today. a 29.7 inch 
trough over the canadian prairie wednesday morning will begin to 
push towards the lake on wednesday, weakening to 29.8 inches over 
northern ontario wednesday night. weak ridging of around 30.1 inches 
will build over the lake on thursday ahead of the next clipper low 
approaching the region on friday at around 29.7 inches.



lsz265-172000-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
400 am edt tue mar 17 2026

...gale warning in effect until 8 am edt this morning...
...heavy freezing spray warning in effect until 2 pm edt this
afternoon...

.early this morning...north gales to 35 knots. heavy freezing
spray. scattered snow showers. waves 12 to 17 feet occasionally
to 21 feet subsiding to 10 to 14 feet occasionally to 18 feet. 
.today...northwest winds 20 to 30 knots diminishing to 15 to
25 knots in the afternoon, then becoming west 10 to 20 knots
late. heavy freezing spray through early afternoon. scattered
snow showers. waves subsiding to 1 to 3 feet. 
.tonight...south winds 10 to 20 knots increasing to 20 to
30 knots. a slight chance of snow showers after midnight. waves
subsiding to calm to 2 feet, then building to 2 to 4 feet. 
.wednesday...south winds 20 to 30 knots becoming southwest 15 to
25 knots in the afternoon, then veering west late. a slight
chance of snow showers through early afternoon. waves subsiding
to calm to 2 feet. 
.wednesday night...west winds 10 to 20 knots. a slight chance of
rain showers. a slight chance of snow showers after midnight.
waves calm to 2 feet. 
.thursday...north winds 10 to 20 knots veering southeast by mid
afternoon. waves calm to 2 feet. 
.thursday night...south winds 10 to 20 knots becoming west 15 to
25 knots after midnight. a chance of snow showers, possibly mixed
with rain. waves calm to 2 feet. 
.friday...northeast winds 15 to 25 knots becoming east 20 to
30 knots. a chance of snow showers, possibly mixed with rain.
waves building to 6 to 9 feet occasionally to 11 feet. 
.saturday...southeast winds 20 to 30 knots becoming north gales
to 35 knots. a chance of snow showers, possibly mixed with rain.
waves building to 7 to 10 feet occasionally to 13 feet, then
subsiding to 3 to 6 feet occasionally to 8 feet. 

$$

fzus63 kmqt 170801
glfls 
expires:202603172000;;832628

open lake forecast for lake superior
national weather service marquette mi
400 am edt tue mar 17 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 20.1 ridge will move through lake superior today. a 29.7 inch 
trough over the canadian prairie wednesday morning will begin to 
push towards the lake on wednesday, weakening to 29.8 inches over 
northern ontario wednesday night. weak ridging of around 30.1 inches 
will build over the lake on thursday ahead of the next clipper low 
approaching the region on friday at around 29.7 inches.



lsz162-172000-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
400 am edt tue mar 17 2026 /300 am cdt tue mar 17 2026/

.early this morning...north winds 10 to 20 knots. waves 3 to
5 feet occasionally to 7 feet subsiding to 2 to 4 feet. 
.today...northwest winds 10 to 20 knots backing southwest in the
afternoon. waves subsiding to calm to 2 feet. 
.tonight...south winds 10 to 20 knots increasing to 15 to
25 knots after midnight, then veering southwest late. a chance of
snow showers. waves building to 3 to 5 feet occasionally to
7 feet. 
.wednesday...southwest winds 15 to 25 knots diminishing to 10 to
20 knots late. a slight chance of snow showers through early
afternoon. waves subsiding to 1 to 3 feet. 
.wednesday night...southwest winds 5 to 15 knots veering
northwest after midnight. a slight chance of rain showers,
possibly mixed with snow through midnight. waves subsiding to
calm to 2 feet. 
.thursday...northeast winds 5 to 15 knots veering south by mid
afternoon. waves calm to 2 feet. 
.thursday night...southwest winds 5 to 15 knots becoming west
10 to 20 knots after midnight. waves calm to 2 feet. 
.friday...east winds 10 to 20 knots. a chance of snow showers.
waves building to 3 to 6 feet occasionally to 8 feet. 
.saturday...southeast winds 10 to 20 knots becoming north 20 to
30 knots. waves subsiding to 2 to 4 feet, then building to 4 to
7 feet occasionally to 9 feet. 

$$

fzus63 kmqt 170801
glfls 
expires:202603172000;;832633

open lake forecast for lake superior
national weather service marquette mi
400 am edt tue mar 17 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 20.1 ridge will move through lake superior today. a 29.7 inch 
trough over the canadian prairie wednesday morning will begin to 
push towards the lake on wednesday, weakening to 29.8 inches over 
northern ontario wednesday night. weak ridging of around 30.1 inches 
will build over the lake on thursday ahead of the next clipper low 
approaching the region on friday at around 29.7 inches.



lsz267-172000-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
400 am edt tue mar 17 2026

...gale warning in effect until 8 am edt this morning...
...heavy freezing spray warning in effect through this
afternoon...

.early this morning...north gales to 40 knots. heavy freezing
spray. scattered snow showers. waves 10 to 14 feet occasionally
to 18 feet subsiding to 10 to 14 feet occasionally to 18 feet. 
.today...north gales to 35 knots becoming northwest 15 to
25 knots in the afternoon, then diminishing to 10 to 20 knots
late. heavy freezing spray through early afternoon. scattered
snow showers. waves subsiding to 2 to 4 feet. 
.tonight...west winds 5 to 15 knots becoming south 15 to 25 knots
after midnight. scattered snow showers. waves subsiding to 1 to
3 feet, then building to 3 to 6 feet occasionally to 8 feet. 
.wednesday...south winds 20 to 30 knots becoming southwest 15 to
25 knots late. a chance of snow showers. waves building to 4 to
7 feet occasionally to 9 feet, then subsiding to 3 to 5 feet
occasionally to 7 feet. 
.wednesday night...southwest winds 15 to 25 knots becoming west
10 to 20 knots after midnight. a slight chance of snow showers.
waves subsiding to 1 to 3 feet. 
.thursday...north winds 10 to 20 knots backing northwest by mid
afternoon. waves subsiding to calm to 2 feet. 
.thursday night...southwest winds 10 to 20 knots. a chance of
snow showers. waves building to 2 to 4 feet. 
.friday...north winds 15 to 25 knots becoming east 20 to
30 knots. a chance of rain and snow showers. waves subsiding to
1 to 3 feet, then building to 3 to 6 feet occasionally to 8 feet.
.saturday...southeast winds 20 to 30 knots becoming north gales
to 35 knots. a chance of snow showers. a chance of rain showers.
waves building to 10 to 14 feet occasionally to 18 feet, then
subsiding to 9 to 12 feet occasionally to 15 feet. 

$$

fzus63 kmqt 170801
glfls 
expires:202603172000;;832632

open lake forecast for lake superior
national weather service marquette mi
400 am edt tue mar 17 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 20.1 ridge will move through lake superior today. a 29.7 inch 
trough over the canadian prairie wednesday morning will begin to 
push towards the lake on wednesday, weakening to 29.8 inches over 
northern ontario wednesday night. weak ridging of around 30.1 inches 
will build over the lake on thursday ahead of the next clipper low 
approaching the region on friday at around 29.7 inches.



lsz266-172000-
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 am edt tue mar 17 2026

...gale warning in effect until 8 am edt this morning...
...heavy freezing spray warning in effect through this
afternoon...

.early this morning...north gales to 40 knots. heavy freezing
spray. scattered snow showers. waves 15 to 20 feet occasionally
to 25 feet subsiding to 11 to 15 feet occasionally to 19 feet. 
.today...north gales to 35 knots becoming northwest 15 to
25 knots in the afternoon, then becoming west 10 to 20 knots
late. heavy freezing spray through early afternoon. scattered
snow showers. waves subsiding to 2 to 4 feet. 
.tonight...southwest winds 10 to 20 knots becoming south 15 to
25 knots after midnight, then increasing to 20 to 30 knots late.
a slight chance of snow showers. freezing spray after midnight.
waves subsiding to 1 to 3 feet, then building to 4 to 7 feet
occasionally to 9 feet. 
.wednesday...south winds 20 to 30 knots veering southwest in the
afternoon, then diminishing to 15 to 25 knots late. freezing
spray through early afternoon. a chance of snow showers. waves
building to 5 to 8 feet occasionally to 10 feet, then subsiding
to 3 to 5 feet occasionally to 7 feet. 
.wednesday night...west winds 15 to 25 knots. a slight chance of
rain and snow showers after midnight. waves subsiding to 1 to
3 feet. 
.thursday...north winds 10 to 20 knots backing northwest by mid
afternoon. waves subsiding to calm to 2 feet. 
.thursday night...southwest winds 10 to 20 knots increasing to
15 to 25 knots after midnight. a chance of snow showers. a chance
of rain showers after midnight. waves building to 2 to 4 feet. 
.friday...north winds 15 to 25 knots becoming east 20 to
30 knots. a chance of snow showers, possibly mixed with rain.
waves building to 6 to 9 feet occasionally to 11 feet. 
.saturday...southeast winds 20 to 30 knots becoming north gales
to 40 knots. a chance of snow showers, possibly mixed with rain.
waves building to 6 to 10 feet occasionally to 13 feet. 

$$

fzus63 kmqt 170801
glfls 
expires:202603172000;;832629

open lake forecast for lake superior
national weather service marquette mi
400 am edt tue mar 17 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 20.1 ridge will move through lake superior today. a 29.7 inch 
trough over the canadian prairie wednesday morning will begin to 
push towards the lake on wednesday, weakening to 29.8 inches over 
northern ontario wednesday night. weak ridging of around 30.1 inches 
will build over the lake on thursday ahead of the next clipper low 
approaching the region on friday at around 29.7 inches.



lsz263-172000-
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 am edt tue mar 17 2026

...heavy freezing spray warning in effect until 2 pm edt this
afternoon...

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

$$