fzus63 kmqt 150201
glfls 
expires:202609150800;;466219

open lake forecast for lake superior
national weather service marquette mi
1001 pm edt mon sep 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 29.3 inch low near lake winnipeg tonight moves to southern hudson 
bay at 29.4 inches by tuesday afternoon, bringing 29.7 inch 
troughing across lake superior. 30.2 inch high pressure develops 
over the northern plains on tuesday, strengthening to 30.4 inches as 
it crosses the upper great lakes on wednesday. high pressure ridging 
of 30.2 to 30.3 inches then looks to remain over lake superior 
through the rest of the workweek. 




lsz162-150800-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
1001 pm edt mon sep 14 2026 /901 pm cdt mon sep 14 2026/

...gale warning in effect from 8 am edt /7 am cdt/ tuesday
through tuesday afternoon...

.rest of tonight...southeast winds 20 to 30 knots veering south
after midnight, then becoming southwest gales to 35 knots late. a
chance of showers. waves 3 to 6 feet occasionally to 8 feet. 
.tuesday...west gales to 45 knots diminishing to 20 to 30 knots
late. waves building to 7 to 10 feet occasionally to 13 feet,
then subsiding to 3 to 5 feet occasionally to 7 feet. 
.tuesday night...west winds 10 to 20 knots becoming northwest
5 to 15 knots after midnight. waves subsiding to calm to 2 feet. 
.wednesday...north winds less than 10 knots becoming east 5 to
15 knots by mid afternoon. waves calm to 2 feet. 
.wednesday night...east winds 5 to 15 knots veering west after
midnight. a slight chance of showers through midnight. waves calm
to 2 feet. 
.thursday...northwest winds 5 to 15 knots backing southwest by
mid afternoon. waves calm to 2 feet. 
.thursday night...northeast winds 5 to 15 knots veering east
after midnight. waves calm to 2 feet. 
.friday...east winds 10 to 20 knots. a chance of showers. waves
building to 1 to 3 feet. 
.saturday...northeast winds 20 to 30 knots diminishing to 15 to
25 knots. a chance of showers. waves building to 3 to 5 feet
occasionally to 7 feet. 

$$

fzus63 kmqt 150201
glfls 
expires:202609150800;;466220

open lake forecast for lake superior
national weather service marquette mi
1001 pm edt mon sep 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 29.3 inch low near lake winnipeg tonight moves to southern hudson 
bay at 29.4 inches by tuesday afternoon, bringing 29.7 inch 
troughing across lake superior. 30.2 inch high pressure develops 
over the northern plains on tuesday, strengthening to 30.4 inches as 
it crosses the upper great lakes on wednesday. high pressure ridging 
of 30.2 to 30.3 inches then looks to remain over lake superior 
through the rest of the workweek. 




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-
1001 pm edt mon sep 14 2026

...gale warning in effect from 8 am edt tuesday through tuesday
evening...

.rest of tonight...south winds 20 to 30 knots becoming southwest
gales to 35 knots late. a chance of showers. waves 3 to 5 feet
occasionally to 7 feet building to 4 to 7 feet occasionally to
9 feet. 
.tuesday...southwest gales to 45 knots becoming west gales to
45 knots with a few storm force gusts to 50 knots possible in the
afternoon, then diminishing to gales to 40 knots late. waves
building to 10 to 14 feet occasionally to 18 feet, then subsiding
to 6 to 9 feet occasionally to 11 feet. 
.tuesday night...west winds 15 to 25 knots diminishing to 10 to
20 knots after midnight, then becoming northwest 5 to 15 knots
late. waves subsiding to calm to 2 feet. 
.wednesday...north winds 5 to 15 knots veering east by mid
afternoon. waves calm to 2 feet. 
.wednesday night...southeast winds 5 to 15 knots veering south
after midnight. a slight chance of showers through midnight.
waves calm to 2 feet. 
.thursday...northwest winds 5 to 15 knots. waves calm to 2 feet. 
.thursday night...northeast winds 5 to 15 knots veering east
after midnight. waves calm to 2 feet. 
.friday...southeast winds 5 to 15 knots becoming east 10 to
20 knots. a chance of showers. waves building to 1 to 3 feet. 
.saturday...northeast winds 20 to 30 knots. a chance of showers.
waves building to 3 to 5 feet occasionally to 7 feet. 

$$