fzus63 kmqt 260907 cca
glfls 
expires:202511262100;;528142

open lake forecast for lake superior...corrected
national weather service marquette mi
407 am est wed nov 26 2025

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 moving into the central u.p. this morning continues 
towards the straits of mackinac this afternoon. as we move into 
tonight and thanksgiving day, the low shifts into quebec; meanwhile, 
a 30.6 inch high develops over the canadian prairies. with the low 
lifting further northeast on friday, the high weakens slightly to 
30.5 inches as it moves into the mississippi river valley. the high 
then shifts into the mid-atlantic on saturday while a 29.7 inch low 
pressure lifts from the southern plains towards the great lakes. 
this low eventually reaches michigan's lower peninsula sunday 
morning, before lifting into quebec sunday night through monday 
morning as it deepens to 29.5 inches. in its wake, a 30.5 inch high 
pressure moves back over the upper mississippi valley on monday, 
bringing 30.3 inch ridging back over lake superior.



lsz162-262100-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
407 am est wed nov 26 2025 /307 am cst wed nov 26 2025/

...gale warning in effect through thursday morning...

.early this morning...north gales to 45 knots. snow. waves 12 to
17 feet occasionally to 21 feet. 
.today...north gales to 45 knots. snow in the morning, then a
chance of snow in the afternoon. waves subsiding to 10 to 14 feet
occasionally to 18 feet. 
.tonight...northwest gales to 40 knots. isolated snow showers.
waves subsiding to 6 to 9 feet occasionally to 11 feet. 
.thursday...northwest gales to 35 knots diminishing to 20 to
30 knots. isolated snow showers. waves subsiding to 3 to 6 feet
occasionally to 8 feet. 
.thursday night...northwest winds 20 to 30 knots diminishing to
15 to 25 knots after midnight. isolated snow showers in the
evening. waves subsiding to 2 to 4 feet. 
.friday...northwest winds 10 to 20 knots diminishing to 5 to
15 knots in the afternoon. waves subsiding to calm to 2 feet. 
.friday night...northwest winds 5 to 15 knots. waves calm to
2 feet. 
.saturday...northeast winds 5 to 15 knots becoming north 10 to
20 knots. a chance of snow showers. waves building to 1 to
3 feet. 
.sunday...northwest winds 15 to 25 knots backing west. waves
building to 2 to 4 feet, then subsiding to 1 to 3 feet. 

$$

fzus63 kmqt 260907 cca
glfls 
expires:202511262100;;528143

open lake forecast for lake superior...corrected
national weather service marquette mi
407 am est wed nov 26 2025

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 moving into the central u.p. this morning continues 
towards the straits of mackinac this afternoon. as we move into 
tonight and thanksgiving day, the low shifts into quebec; meanwhile, 
a 30.6 inch high develops over the canadian prairies. with the low 
lifting further northeast on friday, the high weakens slightly to 
30.5 inches as it moves into the mississippi river valley. the high 
then shifts into the mid-atlantic on saturday while a 29.7 inch low 
pressure lifts from the southern plains towards the great lakes. 
this low eventually reaches michigan's lower peninsula sunday 
morning, before lifting into quebec sunday night through monday 
morning as it deepens to 29.5 inches. in its wake, a 30.5 inch high 
pressure moves back over the upper mississippi valley on monday, 
bringing 30.3 inch ridging back over lake superior.



lsz263-262100-
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-
407 am est wed nov 26 2025

...gale warning in effect until 5 am est early this morning...
...storm warning in effect until 1 pm est this afternoon...

.early this morning...north gales to 45 knots. snow, possibly
mixed with rain. waves 15 to 20 feet occasionally to 25 feet. 
.today...north storm force winds to 55 knots diminishing to gales
to 45 knots by mid afternoon. snow. waves building to 17 to
22 feet occasionally to 28 feet, then subsiding to 15 to 20 feet
occasionally to 25 feet. 
.tonight...north gales to 45 knots becoming northwest gales to
40 knots late. scattered snow showers. waves subsiding to 9 to
12 feet occasionally to 15 feet. 
.thursday...northwest gales to 35 knots diminishing to 20 to
30 knots by mid afternoon. scattered snow showers. waves
subsiding to 6 to 9 feet occasionally to 11 feet. 
.thursday night...northwest winds 20 to 30 knots. scattered snow
showers. waves subsiding to 3 to 6 feet occasionally to 8 feet. 
.friday...northwest winds 15 to 25 knots diminishing to 10 to
20 knots in the afternoon. waves subsiding to calm to 2 feet. 
.friday night...northwest winds 5 to 15 knots. waves calm to
2 feet. 
.saturday...east winds 5 to 15 knots becoming north 15 to
25 knots. a chance of snow showers. waves building to 3 to 5 feet
occasionally to 7 feet. 
.sunday...northwest winds 20 to 30 knots. a chance of snow
showers. waves building to 3 to 6 feet occasionally to 8 feet. 

$$