fzus63 kmqt 072101
glfls 
expires:202602080900;;254415

open lake forecast for lake superior
national weather service marquette mi
400 pm est sat feb 7 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...

30.4 inch high pressure over lake superior this afternoon will 
slowly shift east across the upper great lakes through tonight. a 
29.8 inch low develops over the canadian rockies sunday morning, 
shifting to lake winnipeg by sunday night as the 30.5 inch high 
moves over lake ontario by monday morning. the high will weaken to 
30.3 inches over the east coast by monday night while the low moves 
over northern ontario at 29.6 inches, dragging a 29.7 inch trough 
across lake superior monday night. the low then weakens to near 29.8 
inches over quebec tuesday night as high pressure of 30.3 inches 
fills in over manitoba and western ontario. this high moves over the 
lake thursday morning.



lsz162-080900-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
400 pm est sat feb 7 2026 /300 pm cst sat feb 7 2026/

.late this afternoon...east winds 5 to 15 knots. a slight chance
of snow. waves calm to 2 feet. 
.tonight...east winds 5 to 15 knots increasing to 10 to 20 knots
by midnight, then diminishing to 5 to 15 knots late. a slight
chance of snow in the evening. waves calm to 2 feet. 
.sunday...east winds 5 to 15 knots veering south. waves calm to
2 feet. 
.sunday night...south winds 5 to 15 knots increasing to 10 to
20 knots by midnight, then veering southwest late. a slight
chance of snow after midnight. waves calm to 2 feet. 
.monday...southwest winds 10 to 20 knots. a slight chance of rain
in the afternoon. waves calm to 2 feet. 
.monday night...west winds 10 to 20 knots. waves calm to 2 feet. 
.tuesday...west winds 10 to 20 knots. waves calm to 2 feet. 
.tuesday night...northwest winds 10 to 20 knots diminishing to
5 to 15 knots after midnight. waves calm to 2 feet. 
.wednesday...northwest winds 5 to 15 knots veering north. waves
calm to 2 feet. 
.thursday...southwest winds 5 to 15 knots. waves calm to 2 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 072101
glfls 
expires:202602080900;;254416

open lake forecast for lake superior
national weather service marquette mi
400 pm est sat feb 7 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...

30.4 inch high pressure over lake superior this afternoon will 
slowly shift east across the upper great lakes through tonight. a 
29.8 inch low develops over the canadian rockies sunday morning, 
shifting to lake winnipeg by sunday night as the 30.5 inch high 
moves over lake ontario by monday morning. the high will weaken to 
30.3 inches over the east coast by monday night while the low moves 
over northern ontario at 29.6 inches, dragging a 29.7 inch trough 
across lake superior monday night. the low then weakens to near 29.8 
inches over quebec tuesday night as high pressure of 30.3 inches 
fills in over manitoba and western ontario. this high moves over the 
lake thursday morning.



lsz263-080900-
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 sat feb 7 2026

.late this afternoon...east winds 5 to 15 knots. a slight chance
of snow. waves calm to 2 feet. 
.tonight...east winds 5 to 15 knots veering southeast by
midnight. a slight chance of snow in the evening. waves calm to
2 feet. 
.sunday...south winds 5 to 15 knots. waves calm to 2 feet. 
.sunday night...south winds 10 to 20 knots increasing to 15 to
25 knots by midnight. a slight chance of snow after midnight.
waves building to 2 to 4 feet. 
.monday...southwest winds 15 to 25 knots diminishing to 10 to
20 knots in the afternoon. a slight chance of snow in the
afternoon. waves subsiding to calm to 2 feet. 
.monday night...west winds 5 to 15 knots increasing to 10 to
20 knots after midnight. waves calm to 2 feet. 
.tuesday...west winds 15 to 25 knots diminishing to 10 to
20 knots in the afternoon. waves calm to 2 feet. 
.tuesday night...northwest winds 10 to 20 knots. waves calm to
2 feet. 
.wednesday...northwest winds 5 to 15 knots diminishing to less
than 10 knots. waves calm to 2 feet. 
.thursday...west winds 5 to 15 knots backing southwest. waves
calm to 2 feet. 

note, wave height forecasts are for ice free areas.

$$