fzus63 kmqt 150201
glfls 
expires:202603150800;;688407

open lake forecast for lake superior
national weather service marquette mi
1000 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 tonight ahead of a 29.2 
inch low developing over the central plains. this low 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-
1000 pm edt sat mar 14 2026 /900 pm cdt sat mar 14 2026/

...gale warning in effect from 8 am edt /7 am cdt/ sunday through
sunday evening...
...heavy freezing spray warning in effect from 8 am edt /7 am
cdt/ sunday through late monday night...
...storm warning in effect from sunday evening through monday
morning...

.rest of tonight...east winds 5 to 15 knots increasing to gales
to 35 knots. a slight chance of snow by midnight, then snow after
midnight. waves calm to 2 feet 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 2 to 4 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 150201
glfls 
expires:202603150800;;688408

open lake forecast for lake superior
national weather service marquette mi
1000 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 tonight ahead of a 29.2 
inch low developing over the central plains. this low 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-
1000 pm edt sat mar 14 2026

...gale warning in effect from 8 am edt sunday through sunday
evening...
...heavy freezing spray warning in effect from sunday afternoon
through tuesday afternoon...
...storm warning in effect from sunday evening through monday
afternoon...

.rest of tonight...southeast winds 5 to 15 knots becoming east
15 to 25 knots late. a chance of snow. waves calm to 2 feet
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. a
slight chance of snow showers. waves subsiding to 5 to 8 feet
occasionally to 10 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. 

$$