fzus63 kmqt 062101
glfls 
expires:202611070900;;380003

open lake forecast for lake superior
national weather service marquette mi
400 pm est fri nov 6 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...

through tonight, the high pressure splits with a 30.3 inch high over 
quebec and a 30.2 inch high over missouri leaving 30.1 inch remnant 
ridging over the lake. meanwhile, the main low will move offshore 
but the troughing will consolidate into a 29.8 inch low over 
massachusetts. through saturday, pressure begins to fall over lake 
superior as a 29.5 inch low moves off the canadian rockies and into 
northern manitoba. this low moves into northern ontario saturday 
night into sunday, passing 29.7 inch troughing over the lake. with 
the low moving to the mouth of the st lawrence at 29.3 inches sunday 
night, weak ridging of around 30.0 inches moves over lake superior 
associated with 30.2 inch high pressure over texas. by monday 
morning, a 29.5 inch low will move over lake winnipeg, weakening to 
29.7 inches as if moves near or over the lake monday night. tuesday 
through wednesday, this low shifts east as 30.4 inch high pressure 
builds over the manitoba/ontario line. 




lsz162-070900-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
400 pm est fri nov 6 2026 /300 pm cst fri nov 6 2026/

.late this afternoon...southwest winds 5 to 15 knots. waves calm
to 2 feet. 
.tonight...southwest winds 5 to 15 knots increasing to 10 to
20 knots by midnight. waves calm to 2 feet. 
.saturday...southwest winds 10 to 20 knots increasing to 15 to
25 knots. waves building to 2 to 4 feet. 
.saturday night...southwest winds 20 to 30 knots veering west by
midnight. waves building to 4 to 7 feet occasionally to 9 feet,
then subsiding to 3 to 5 feet occasionally to 7 feet. 
.sunday...west winds 20 to 30 knots becoming northwest 15 to
25 knots in the afternoon. waves subsiding to 1 to 3 feet. 
.sunday night...northwest winds 5 to 15 knots backing southwest
after midnight. waves subsiding to calm to 2 feet. 
.monday...southwest winds 10 to 20 knots increasing to 15 to
25 knots in the afternoon. waves building to 1 to 3 feet. 
.monday night...west winds 15 to 25 knots. waves building to 2 to
4 feet. 
.tuesday...west winds 15 to 25 knots becoming northwest 10 to
20 knots. waves subsiding to calm to 2 feet. 
.wednesday...north winds 5 to 15 knots increasing to 10 to
20 knots. waves calm to 2 feet. 

$$

fzus63 kmqt 062101
glfls 
expires:202611070900;;380004

open lake forecast for lake superior
national weather service marquette mi
400 pm est fri nov 6 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...

through tonight, the high pressure splits with a 30.3 inch high over 
quebec and a 30.2 inch high over missouri leaving 30.1 inch remnant 
ridging over the lake. meanwhile, the main low will move offshore 
but the troughing will consolidate into a 29.8 inch low over 
massachusetts. through saturday, pressure begins to fall over lake 
superior as a 29.5 inch low moves off the canadian rockies and into 
northern manitoba. this low moves into northern ontario saturday 
night into sunday, passing 29.7 inch troughing over the lake. with 
the low moving to the mouth of the st lawrence at 29.3 inches sunday 
night, weak ridging of around 30.0 inches moves over lake superior 
associated with 30.2 inch high pressure over texas. by monday 
morning, a 29.5 inch low will move over lake winnipeg, weakening to 
29.7 inches as if moves near or over the lake monday night. tuesday 
through wednesday, this low shifts east as 30.4 inch high pressure 
builds over the manitoba/ontario line. 




lsz263-070900-
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 est fri nov 6 2026

.late this afternoon...north winds less than 10 knots. waves 1 to
3 feet subsiding to calm to 2 feet. 
.tonight...southwest winds 5 to 15 knots. waves calm to 2 feet. 
.saturday...southwest winds 5 to 15 knots increasing to 10 to
20 knots. waves building to 3 to 5 feet occasionally to 7 feet. 
.saturday night...southwest winds 20 to 30 knots veering west by
midnight. waves building to 6 to 9 feet occasionally to 11 feet. 
.sunday...west winds 20 to 30 knots veering northwest in the
afternoon. waves subsiding to 3 to 6 feet occasionally to 8 feet.
.sunday night...northwest winds 10 to 20 knots becoming west 5 to
15 knots after midnight. waves subsiding to calm to 2 feet. 
.monday...southwest winds 10 to 20 knots. waves building to 2 to
4 feet. 
.monday night...west winds 15 to 25 knots. waves building to 3 to
5 feet occasionally to 7 feet. 
.tuesday...west winds 15 to 25 knots becoming north 10 to
20 knots. waves building to 3 to 6 feet occasionally to 8 feet,
then subsiding to 1 to 3 feet. 
.wednesday...north winds 5 to 15 knots. waves subsiding to calm
to 2 feet, then building to 1 to 3 feet. 

$$