fzus63 kmqt 192001
glfls 
expires:202606200800;;032379

open lake forecast for lake superior
national weather service marquette mi
401 pm edt fri jun 19 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... 

pressure over lake superior remains at 29.8 to 29.9 inches the rest 
of this afternoon into saturday morning. ridging over the mid-
mississippi valley builds to 30.0 inches tonight into saturday, 
supporting weak 29.9 inches ridging over lake superior by saturday 
afternoon. ridging continues into monday, when it builds to 30.1 
inches and then 30.2 inches by tuesday morning. a weak 30.0 inch low 
moves through the great lakes on wednesday. 




lsz162-200800-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
401 pm edt fri jun 19 2026 /301 pm cdt fri jun 19 2026/

.late this afternoon...southwest winds 5 to 15 knots. a chance of
showers and a slight chance of thunderstorms. waves calm to
2 feet. 
.tonight...southwest winds 5 to 15 knots veering west after
midnight. a slight chance of thunderstorms through midnight. a
slight chance of rain showers. waves calm to 2 feet. 
.saturday...west winds 5 to 15 knots backing southwest in the
afternoon, then veering west late. a slight chance of rain
showers. waves calm to 2 feet. 
.saturday night...west winds 5 to 15 knots veering northwest
after midnight, then diminishing to less than 10 knots late.
waves calm to 2 feet. 
.sunday...north winds less than 10 knots becoming east 5 to
15 knots by mid afternoon. waves calm to 2 feet. 
.sunday night...northeast winds 5 to 15 knots diminishing to less
than 10 knots after midnight. waves calm to 2 feet. 
.monday...northeast winds less than 10 knots becoming north 5 to
15 knots by mid afternoon. waves calm to 2 feet. 
.monday night...north winds 5 to 15 knots diminishing to less
than 10 knots after midnight. waves calm to 2 feet. 
.tuesday...northeast winds 5 to 15 knots. a chance of rain
showers. waves calm to 2 feet. 
.wednesday...northeast winds 5 to 15 knots becoming north less
than 10 knots. waves calm to 2 feet. 

$$

fzus63 kmqt 192001
glfls 
expires:202606200800;;032380

open lake forecast for lake superior
national weather service marquette mi
401 pm edt fri jun 19 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... 

pressure over lake superior remains at 29.8 to 29.9 inches the rest 
of this afternoon into saturday morning. ridging over the mid-
mississippi valley builds to 30.0 inches tonight into saturday, 
supporting weak 29.9 inches ridging over lake superior by saturday 
afternoon. ridging continues into monday, when it builds to 30.1 
inches and then 30.2 inches by tuesday morning. a weak 30.0 inch low 
moves through the great lakes on wednesday. 




lsz263-200800-
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 fri jun 19 2026

.late this afternoon...southwest winds 10 to 20 knots. a slight
chance of showers. waves 1 to 3 feet. 
.tonight...southwest winds 5 to 15 knots veering west after
midnight, then diminishing to less than 10 knots late. a slight
chance of rain showers. waves subsiding to calm to 2 feet. 
.saturday...west winds 5 to 15 knots. a slight chance of showers
and thunderstorms. waves calm to 2 feet. 
.saturday night...west winds 5 to 15 knots diminishing to less
than 10 knots after midnight. waves calm to 2 feet. 
.sunday...west winds less than 10 knots veering northeast by mid
afternoon. waves calm to 2 feet. 
.sunday night...northeast winds 5 to 15 knots backing north after
midnight. waves calm to 2 feet. 
.monday...north winds 5 to 15 knots backing west by mid
afternoon. waves calm to 2 feet. 
.monday night...west winds 5 to 15 knots diminishing to less than
10 knots after midnight. waves calm to 2 feet. 
.tuesday...northeast winds less than 10 knots veering east. waves
calm to 2 feet. 
.wednesday...northeast winds 5 to 15 knots becoming northwest
less than 10 knots. waves calm to 2 feet. 

$$