fzus63 kmqt 160801
glfls 
expires:202606162000;;829854

open lake forecast for lake superior
national weather service marquette mi
400 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... 

29.6 inch troughing currently over the up and northern wi deepens to 
a 29.5 inch low over northeast wisconsin and the u.p. this afternoon 
before slowly moving east-northeast into ontario tonight into early 
wednesday morning. a low of 29.2 inches over the northern plains on 
wednesday morning then moves through lower michigan wednesday night 
before arriving into southern ontario early thursday morning. a 30.0 
inch high then develops over the plains thursday night before diving 
into the mid-mississippi valley friday night; this brings 29.9 inch 
ridging over lake superior by friday. the ridging strengthen 
slightly to around 30.0 inches over lake superior by saturday as the 
parent high meanders into the ohio river valley. 




lsz162-162000-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
400 am edt tue jun 16 2026 /300 am cdt tue jun 16 2026/

.early this morning...northwest winds 5 to 15 knots. patchy fog.
a slight chance of rain showers. waves calm to 2 feet. 
.today...north winds 5 to 15 knots veering northeast in the
afternoon, then veering south late. a slight chance of rain
showers through early afternoon. 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. 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 160801
glfls 
expires:202606162000;;829855

open lake forecast for lake superior
national weather service marquette mi
400 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... 

29.6 inch troughing currently over the up and northern wi deepens to 
a 29.5 inch low over northeast wisconsin and the u.p. this afternoon 
before slowly moving east-northeast into ontario tonight into early 
wednesday morning. a low of 29.2 inches over the northern plains on 
wednesday morning then moves through lower michigan wednesday night 
before arriving into southern ontario early thursday morning. a 30.0 
inch high then develops over the plains thursday night before diving 
into the mid-mississippi valley friday night; this brings 29.9 inch 
ridging over lake superior by friday. the ridging strengthen 
slightly to around 30.0 inches over lake superior by saturday as the 
parent high meanders into the ohio river valley. 




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-
400 am edt tue jun 16 2026

.early this morning...north winds 5 to 15 knots. waves calm to
2 feet. 
.today...northeast winds 5 to 15 knots veering southwest late. a
slight chance of rain showers through early afternoon. 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. 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. 

$$