fzus63 kmqt 142001
glfls 
expires:202610150800;;098263

open lake forecast for lake superior
national weather service marquette mi
401 pm edt wed oct 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...

30.2 inch high pressure settles tonight into thursday over the upper 
great lakes. meanwhile, a 29.9 inch low develops over saskatchewan 
as a 29.8 inch low forms over the texas panhandle. as the high 
shifts into western quebec thursday afternoon, the lows begin to 
converge over the upper midwest, consolidating into a 29.8 inch low 
over the southern michigan state lines thursday night. in its wake, 
a 30.9 inch high builds over wyoming, weakening to 30.6 inches 
friday as it expands over the plains while the low deepens to 29.5 
inches over new england. the high slides south of the great lakes at 
30.4 inches by saturday night as a 29.4 inch alberta clipper moves 
into saskatchewan. sunday, the high builds back to 30.5 inches over 
the delmarva peninsula as the clipper moves into manitoba.




lsz162-150800-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
401 pm edt wed oct 14 2026 /301 pm cdt wed oct 14 2026/

...gale watch in effect from late thursday night through friday
afternoon...

.late this afternoon...west winds 5 to 15 knots. waves calm to
2 feet. 
.tonight...southeast winds 5 to 15 knots veering south late.
waves calm to 2 feet. 
.thursday...south winds 5 to 15 knots veering southwest in the
afternoon. a chance of showers. waves calm to 2 feet. 
.thursday night...west winds 10 to 20 knots veering northwest
after midnight, then becoming north gales to 35 knots late. a
chance of showers. waves building to 6 to 9 feet occasionally to
11 feet. 
.friday...north gales to 40 knots. waves building to 9 to 12 feet
occasionally to 15 feet, then subsiding to 2 to 4 feet. 
.friday night...northwest winds 10 to 20 knots becoming west
20 to 30 knots after midnight. waves subsiding to calm to 2 feet,
then building to 2 to 4 feet. 
.saturday...southwest gales to 35 knots. waves building to 4 to
8 feet occasionally to 10 feet. 
.saturday night...southwest gales to 40 knots. waves subsiding to
3 to 6 feet occasionally to 8 feet, then building to 6 to 9 feet
occasionally to 11 feet. 
.sunday...southwest gales to 40 knots becoming west 20 to
30 knots. waves building to 7 to 10 feet occasionally to 13 feet,
then subsiding to calm to 2 feet. 
.monday...west winds 5 to 15 knots. waves calm to 2 feet. 

$$

fzus63 kmqt 142001
glfls 
expires:202610150800;;098264

open lake forecast for lake superior
national weather service marquette mi
401 pm edt wed oct 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...

30.2 inch high pressure settles tonight into thursday over the upper 
great lakes. meanwhile, a 29.9 inch low develops over saskatchewan 
as a 29.8 inch low forms over the texas panhandle. as the high 
shifts into western quebec thursday afternoon, the lows begin to 
converge over the upper midwest, consolidating into a 29.8 inch low 
over the southern michigan state lines thursday night. in its wake, 
a 30.9 inch high builds over wyoming, weakening to 30.6 inches 
friday as it expands over the plains while the low deepens to 29.5 
inches over new england. the high slides south of the great lakes at 
30.4 inches by saturday night as a 29.4 inch alberta clipper moves 
into saskatchewan. sunday, the high builds back to 30.5 inches over 
the delmarva peninsula as the clipper moves into manitoba.




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-
401 pm edt wed oct 14 2026

...gale watch in effect from late thursday night through friday
afternoon...

.late this afternoon...northwest winds 5 to 15 knots. waves calm
to 2 feet. 
.tonight...southeast winds less than 10 knots becoming south 5 to
15 knots late. waves calm to 2 feet. 
.thursday...south winds 5 to 15 knots veering southwest late. a
chance of showers through early afternoon, then showers likely by
mid afternoon. waves calm to 2 feet. 
.thursday night...southwest winds 10 to 20 knots becoming
northwest 15 to 25 knots after midnight, then becoming north
gales to 40 knots late. showers likely through midnight, then a
chance of showers after midnight. waves building to 8 to 11 feet
occasionally to 14 feet. 
.friday...north gales to 40 knots. a chance of showers through
early afternoon. waves building to 11 to 15 feet occasionally to
19 feet, then subsiding to 4 to 7 feet occasionally to 9 feet. 
.friday night...northwest winds 15 to 25 knots backing west after
midnight. waves subsiding to 1 to 3 feet, then building to 3 to
5 feet occasionally to 7 feet. 
.saturday...southwest gales to 40 knots. waves building to 6 to
9 feet occasionally to 11 feet, then subsiding to 4 to 7 feet
occasionally to 9 feet. 
.saturday night...southwest gales to 40 knots. waves subsiding to
3 to 6 feet occasionally to 8 feet, then building to 6 to 9 feet
occasionally to 11 feet. 
.sunday...southwest gales to 45 knots becoming west gales to
35 knots. waves building to 8 to 11 feet occasionally to 14 feet,
then subsiding to 2 to 4 feet. 
.monday...west winds 5 to 15 knots backing southwest. waves
subsiding to calm to 2 feet. 

$$