fzus63 kmqt 161401
glfls 
expires:202606162000;;842253

open lake forecast for lake superior
national weather service marquette mi
1001 am edt tue jun 16 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 29.5 inch low over northeast wisconsin and the u.p. slowly moves 
east-northeast into ontario this afternoon into early wednesday 
morning. a low of 29.2 inches over the northern plains on wednesday 
morning moves through lower michigan wednesday night before arriving 
into southern ontario early thursday morning. a 29.9 inch high then 
develops over the plains thursday and thursday night, strengthening 
to 30.0 inches by friday before diving into the mid-mississippi 
valley late in the day; this brings 29.9 inch ridging over lake 
superior by friday. the ridging strengthens slightly to around 30.0 
inches over lake superior by saturday as the parent high meanders 
into the ohio river valley and a second high pressure over northern 
canada heads towards hudson bay. the second high keeps 30.0 inch 
ridging over lake superior into sunday as it finally arrives over 
western hudson bay. 




lsz162-162000-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
1001 am edt tue jun 16 2026 /901 am cdt tue jun 16 2026/

.rest of today...northeast winds 5 to 15 knots veering south
late. a slight chance of showers by late morning. waves calm to
2 feet. 
.tonight...south winds 5 to 15 knots becoming north less than
10 knots after midnight, then veering south late. a slight chance
of rain showers after midnight. waves calm to 2 feet. 
.wednesday...east winds 5 to 15 knots increasing to 15 to
25 knots in the afternoon, then backing northeast late. a chance
of rain showers. waves building to 2 to 4 feet. 
.wednesday night...northeast winds 15 to 25 knots becoming west
10 to 20 knots after midnight. a chance of rain showers. waves
subsiding to calm to 2 feet. 
.thursday...west winds 10 to 20 knots. a slight chance of showers
and thunderstorms by mid afternoon. waves calm to 2 feet. 
.thursday night...northwest winds 10 to 20 knots backing west
after midnight. waves calm to 2 feet. 
.friday...west winds 10 to 20 knots diminishing to 5 to 15 knots.
waves calm to 2 feet. 
.saturday...west winds 5 to 15 knots veering northeast. waves
calm to 2 feet. 

$$

fzus63 kmqt 161401
glfls 
expires:202606162000;;842254

open lake forecast for lake superior
national weather service marquette mi
1001 am edt tue jun 16 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 29.5 inch low over northeast wisconsin and the u.p. slowly moves 
east-northeast into ontario this afternoon into early wednesday 
morning. a low of 29.2 inches over the northern plains on wednesday 
morning moves through lower michigan wednesday night before arriving 
into southern ontario early thursday morning. a 29.9 inch high then 
develops over the plains thursday and thursday night, strengthening 
to 30.0 inches by friday before diving into the mid-mississippi 
valley late in the day; this brings 29.9 inch ridging over lake 
superior by friday. the ridging strengthens slightly to around 30.0 
inches over lake superior by saturday as the parent high meanders 
into the ohio river valley and a second high pressure over northern 
canada heads towards hudson bay. the second high keeps 30.0 inch 
ridging over lake superior into sunday as it finally arrives over 
western hudson bay. 




lsz263-162000-
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-
1001 am edt tue jun 16 2026

.rest of today...northeast winds 5 to 15 knots veering southwest
late. a slight chance of showers by late morning. waves calm to
2 feet. 
.tonight...southwest winds 5 to 15 knots becoming south less than
10 knots after midnight. waves calm to 2 feet. 
.wednesday...southeast winds 5 to 15 knots backing east in the
afternoon, then increasing to 10 to 20 knots late. a chance of
rain showers. waves building to 1 to 3 feet. 
.wednesday night...northeast winds 10 to 20 knots backing north
after midnight. a chance of rain showers. waves subsiding to calm
to 2 feet. 
.thursday...west winds 5 to 15 knots increasing to 10 to 20 knots
by mid afternoon. a slight chance of showers by mid afternoon.
waves building to 1 to 3 feet. 
.thursday night...west winds 5 to 15 knots veering northwest
after midnight. waves 1 to 3 feet. 
.friday...west winds 10 to 20 knots diminishing to 5 to 15 knots.
waves subsiding to calm to 2 feet, then building to 1 to 3 feet. 
.saturday...west winds 5 to 15 knots veering north. waves calm to
2 feet. 

$$