fzus63 kmqt 281401
glfls 
expires:202610282000;;858935

open lake forecast for lake superior
national weather service marquette mi
1000 am edt wed oct 28 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 29.7 inch low over manitoba this morning tracks to northern 
ontario tonight as a developing 29.8 inch colorado low ejects out of 
the central plains and merges with this feature over lake superior. 
high pressure of 30.2 to 30.3 inches returns to the upper great 
lakes late thursday into friday, strengthening to 30.4 inches over 
the lower great lakes on saturday as ridging of 30.1 to 30.2 inches 
lingers over lake superior through the weekend.




lsz162-282000-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
1000 am edt wed oct 28 2026 /900 am cdt wed oct 28 2026/

.rest of today...southwest winds 10 to 20 knots diminishing to
5 to 15 knots in the afternoon, then backing east late. showers
likely and a slight chance of thunderstorms by mid afternoon.
waves calm to 2 feet. 
.tonight...east winds 10 to 20 knots veering west after midnight,
then increasing to 15 to 25 knots late. showers and a slight
chance of thunderstorms through midnight. waves building to 2 to
4 feet. 
.thursday...west winds 20 to 30 knots diminishing to 15 to
25 knots late. waves building to 3 to 5 feet occasionally to
7 feet, then subsiding to 2 to 4 feet. 
.thursday night...west winds 10 to 20 knots diminishing to 5 to
15 knots after midnight. waves subsiding to calm to 2 feet. 
.friday...west winds 5 to 15 knots backing southwest by mid
afternoon. waves calm to 2 feet. 
.friday night...northwest winds 5 to 15 knots veering northeast
after midnight. waves calm to 2 feet. 
.saturday...east winds 5 to 15 knots. waves calm to 2 feet. 
.sunday...east winds less than 10 knots. waves calm to 2 feet. 

$$

fzus63 kmqt 281401
glfls 
expires:202610282000;;858936

open lake forecast for lake superior
national weather service marquette mi
1000 am edt wed oct 28 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 29.7 inch low over manitoba this morning tracks to northern 
ontario tonight as a developing 29.8 inch colorado low ejects out of 
the central plains and merges with this feature over lake superior. 
high pressure of 30.2 to 30.3 inches returns to the upper great 
lakes late thursday into friday, strengthening to 30.4 inches over 
the lower great lakes on saturday as ridging of 30.1 to 30.2 inches 
lingers over lake superior through the weekend.




lsz263-282000-
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 am edt wed oct 28 2026

.rest of today...west winds 5 to 15 knots backing southwest in
the afternoon, then backing east late. a chance of showers and a
slight chance of thunderstorms by mid afternoon. waves 1 to
3 feet subsiding to calm to 2 feet. 
.tonight...southeast winds 10 to 20 knots becoming west 15 to
25 knots after midnight. showers and a slight chance of
thunderstorms through midnight. waves building to 3 to 6 feet
occasionally to 8 feet. 
.thursday...west winds 20 to 30 knots. waves building to 5 to
9 feet occasionally to 11 feet. 
.thursday night...west winds 15 to 25 knots becoming northwest
10 to 20 knots after midnight. waves subsiding to 1 to 3 feet. 
.friday...west winds 5 to 15 knots. waves subsiding to calm to
2 feet. 
.friday night...west winds 5 to 15 knots becoming northwest less
than 10 knots after midnight. waves calm to 2 feet. 
.saturday...south winds less than 10 knots. waves calm to 2 feet.
.sunday...southwest winds less than 10 knots backing south. waves
calm to 2 feet. 

$$