fzus63 kmqt 140756
glfls 
expires:202603142000;;645505

open lake forecast for lake superior
national weather service marquette mi
356 am edt sat mar 14 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 30.2 inch ridge extends over lake superior today. a 29.2 inch low 
developing over the central plains saturday night tracks through 
lower michigan sunday night to northern lake huron at 28.9 inches by 
monday morning before lifting into canada monday evening. high 
pressure of around 30.4 inches then overspreads the northern plains 
on monday and moves over lake superior at 30.1 inches by tuesday. a 
weakening clipper low around 29.7 inches then moves over northern 
ontario late wednesday.



lsz162-142000-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
356 am edt sat mar 14 2026 /256 am cdt sat mar 14 2026/

...gale warning in effect from sunday morning through late monday
night...

.early this morning...northwest winds 5 to 15 knots. waves calm
to 2 feet. 
.today...southwest winds 5 to 15 knots backing south late. waves
calm to 2 feet. 
.tonight...east winds 5 to 15 knots increasing to gales to
35 knots. a chance of snow. waves building to 4 to 7 feet
occasionally to 9 feet. 
.sunday...northeast gales to 40 knots. freezing spray. snow.
waves building to 12 to 17 feet occasionally to 21 feet. 
.sunday night...north gales to 45 knots increasing to storm force
winds to 50 knots after midnight. heavy freezing spray. a chance
of snow. waves 12 to 17 feet occasionally to 21 feet. 
.monday...north storm force winds to 55 knots. heavy freezing
spray. waves subsiding to 8 to 11 feet occasionally to 14 feet. 
.monday night...north gales to 40 knots diminishing to 20 to
30 knots after midnight. heavy freezing spray through midnight.
waves subsiding to 3 to 5 feet occasionally to 7 feet. 
.tuesday...southwest winds 10 to 20 knots backing south. a chance
of snow showers. waves subsiding to calm to 2 feet, then building
to 3 to 5 feet occasionally to 7 feet. 
.wednesday...southwest winds 10 to 20 knots diminishing to 5 to
15 knots. waves subsiding to calm to 2 feet. 

$$

fzus63 kmqt 140756
glfls 
expires:202603142000;;645506

open lake forecast for lake superior
national weather service marquette mi
356 am edt sat mar 14 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 30.2 inch ridge extends over lake superior today. a 29.2 inch low 
developing over the central plains saturday night tracks through 
lower michigan sunday night to northern lake huron at 28.9 inches by 
monday morning before lifting into canada monday evening. high 
pressure of around 30.4 inches then overspreads the northern plains 
on monday and moves over lake superior at 30.1 inches by tuesday. a 
weakening clipper low around 29.7 inches then moves over northern 
ontario late wednesday.



lsz263-142000-
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-
356 am edt sat mar 14 2026

...gale warning in effect from sunday morning through sunday
evening...
...storm watch in effect from sunday evening through monday
evening...

.early this morning...north winds 5 to 15 knots. waves 2 to
4 feet subsiding to 1 to 3 feet. 
.today...southwest winds 5 to 15 knots. waves subsiding to calm
to 2 feet. 
.tonight...southeast winds 5 to 15 knots becoming east 15 to
25 knots late. a chance of snow after midnight. waves building to
3 to 5 feet occasionally to 7 feet. 
.sunday...east gales to 35 knots becoming northeast gales to
45 knots in the afternoon. freezing spray. snow. waves building
to 12 to 17 feet occasionally to 21 feet. 
.sunday night...north storm force winds to 60 knots. heavy
freezing spray. snow likely through midnight. a chance of snow
after midnight. waves building to 17 to 22 feet occasionally to
28 feet. 
.monday...north storm force winds to 60 knots. heavy freezing
spray. a chance of snow. waves subsiding to 15 to 20 feet
occasionally to 25 feet. 
.monday night...north storm force winds to 55 knots diminishing
to gales to 40 knots after midnight. heavy freezing spray. waves
subsiding to 7 to 10 feet occasionally to 13 feet. 
.tuesday...northwest winds 15 to 25 knots backing south. a chance
of snow showers. waves subsiding to calm to 2 feet, then building
to 3 to 6 feet occasionally to 8 feet. 
.wednesday...southwest winds 10 to 20 knots. waves subsiding to
1 to 3 feet, then building to 3 to 5 feet occasionally to 7 feet.

$$