fzus63 kmqt 142001
glfls 
expires:202603150800;;674882

open lake forecast for lake superior
national weather service marquette mi
400 pm 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 this afternoon. a 29.2 
inch low developing over the central plains tonight tracks through 
lower michigan sunday night to northern lake huron at 29.0 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.



lsz162-150800-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
400 pm edt sat mar 14 2026 /300 pm cdt sat mar 14 2026/

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

.late this afternoon...south winds 5 to 15 knots. waves calm to
2 feet. 
.tonight...east winds 5 to 15 knots increasing to gales to
35 knots. a slight chance of snow through midnight, then snow
after midnight. waves building to 5 to 8 feet occasionally to
10 feet. 
.sunday...northeast gales to 45 knots. freezing spray. snow.
waves building to 15 to 20 feet occasionally to 25 feet. 
.sunday night...north gales to 45 knots increasing to storm force
winds to 50 knots late. heavy freezing spray. a chance of snow.
waves 15 to 20 feet occasionally to 25 feet. 
.monday...north gales to 45 knots. heavy freezing spray. a slight
chance of snow. waves subsiding to 7 to 10 feet occasionally to
13 feet. 
.monday night...north gales to 35 knots diminishing to 15 to
25 knots after midnight. heavy freezing spray through midnight.
waves subsiding to 1 to 3 feet. 
.tuesday...northwest winds 5 to 15 knots becoming southwest 10 to
20 knots by mid afternoon. waves subsiding to calm to 2 feet. 
.tuesday night...south winds 10 to 20 knots. snow showers likely
through midnight, then a chance of snow showers after midnight.
waves building to 2 to 4 feet. 
.wednesday...southwest winds 5 to 15 knots. waves subsiding to
calm to 2 feet. 
.thursday...southwest winds 10 to 20 knots veering west. waves
building to 1 to 3 feet. 

$$

fzus63 kmqt 142001
glfls 
expires:202603150800;;674883

open lake forecast for lake superior
national weather service marquette mi
400 pm 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 this afternoon. a 29.2 
inch low developing over the central plains tonight tracks through 
lower michigan sunday night to northern lake huron at 29.0 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.



lsz263-150800-
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 edt sat mar 14 2026

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

.late this afternoon...southwest winds 5 to 15 knots. waves 1 to
3 feet subsiding to calm to 2 feet. 
.tonight...south winds 5 to 15 knots backing southeast after
midnight, then becoming east 15 to 25 knots late. a chance of
snow. waves building to 3 to 5 feet occasionally to 7 feet. 
.sunday...northeast gales to 45 knots. freezing spray. snow.
waves building to 15 to 20 feet occasionally to 25 feet. 
.sunday night...north storm force winds to 60 knots. heavy
freezing spray. snow. waves building to 20 to 25 feet
occasionally to 31 feet. 
.monday...north storm force winds to 60 knots. heavy freezing
spray. a chance of snow. waves subsiding to 12 to 17 feet
occasionally to 21 feet. 
.monday night...north gales to 45 knots. heavy freezing spray.
waves subsiding to 4 to 7 feet occasionally to 9 feet. 
.tuesday...northwest winds 15 to 25 knots becoming southwest 5 to
15 knots by mid afternoon. waves subsiding to calm to 2 feet. 
.tuesday night...south winds 10 to 20 knots increasing to 15 to
25 knots after midnight. a chance of snow showers. waves building
to 3 to 5 feet occasionally to 7 feet. 
.wednesday...southwest winds 10 to 20 knots. waves subsiding to
calm to 2 feet, then building to 2 to 4 feet. 
.thursday...southwest winds 10 to 20 knots becoming west 15 to
25 knots. waves subsiding to calm to 2 feet, then building to
3 to 6 feet occasionally to 8 feet. 

$$