fzus63 kmqt 040201
glfls 
expires:202606040800;;143505

open lake forecast for lake superior
national weather service marquette mi
1000 pm edt wed jun 3 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... 

high pressure ridging over lake superior around 30.0 inches shifts 
southeast to the lower great lakes through thursday. meanwhile, a 
29.8 inch low approaches from the northwest, moving over lake 
superior on thursday. troughing persists over the lake through 
friday, deepening to near 29.7 inches. weak ridging of near 29.9 
inches returns saturday associated with a weak high of 30.0 inches 
over eastern hudson bay. sunday, the high builds to 30.1 inches over 
quebec while 29.4 inch low pressure spins over saskatchewan. monday, 
the nigh builds to 30.3 inches over the mouth of the st. lawrence 
river while a 29.6 inch low over northern manitoba extends troughing 
south over the great plains. 




lsz162-040800-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
1000 pm edt wed jun 3 2026 /900 pm cdt wed jun 3 2026/

.rest of tonight...northeast winds 5 to 15 knots veering south
after midnight, then increasing to 10 to 20 knots late. a chance
of showers and a slight chance of thunderstorms after midnight.
waves calm to 2 feet. 
.thursday...south winds 5 to 15 knots veering southwest in the
afternoon. a chance of showers and a slight chance of
thunderstorms. waves calm to 2 feet. 
.thursday night...southwest winds 5 to 15 knots veering west
late. a slight chance of thunderstorms through midnight. a slight
chance of rain showers. waves calm to 2 feet. 
.friday...southwest winds 5 to 15 knots. a slight chance of
showers. a slight chance of thunderstorms by mid afternoon. waves
calm to 2 feet. 
.friday night...northeast winds 5 to 15 knots. waves calm to
2 feet. 
.saturday...northeast winds 5 to 15 knots. waves calm to 2 feet. 
.saturday night...northeast winds 5 to 15 knots. waves calm to
2 feet. 
.sunday...northeast winds 10 to 20 knots. waves building to 2 to
4 feet, then subsiding to calm to 2 feet. 
.monday...northeast winds 5 to 15 knots. a chance of showers.
waves calm to 2 feet. 

$$

fzus63 kmqt 040201
glfls 
expires:202606040800;;143506

open lake forecast for lake superior
national weather service marquette mi
1000 pm edt wed jun 3 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... 

high pressure ridging over lake superior around 30.0 inches shifts 
southeast to the lower great lakes through thursday. meanwhile, a 
29.8 inch low approaches from the northwest, moving over lake 
superior on thursday. troughing persists over the lake through 
friday, deepening to near 29.7 inches. weak ridging of near 29.9 
inches returns saturday associated with a weak high of 30.0 inches 
over eastern hudson bay. sunday, the high builds to 30.1 inches over 
quebec while 29.4 inch low pressure spins over saskatchewan. monday, 
the nigh builds to 30.3 inches over the mouth of the st. lawrence 
river while a 29.6 inch low over northern manitoba extends troughing 
south over the great plains. 




lsz263-040800-
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-
1000 pm edt wed jun 3 2026

.rest of tonight...south winds 5 to 15 knots increasing to 10 to
20 knots after midnight. a slight chance of showers after
midnight. waves calm to 2 feet. 
.thursday...south winds 5 to 15 knots veering southwest in the
afternoon, then backing south late. a chance of showers and a
slight chance of thunderstorms. waves calm to 2 feet. 
.thursday night...southwest winds 5 to 15 knots veering west
late. a slight chance of thunderstorms through midnight. a slight
chance of rain showers. waves calm to 2 feet. 
.friday...west winds 5 to 15 knots backing south by mid
afternoon. a slight chance of rain showers. waves calm to 2 feet.
.friday night...northeast winds 5 to 15 knots. a slight chance of
rain showers through midnight. waves calm to 2 feet. 
.saturday...northeast winds less than 10 knots. waves calm to
2 feet. 
.saturday night...northeast winds less than 10 knots becoming
east 5 to 15 knots after midnight. waves calm to 2 feet. 
.sunday...east winds 10 to 20 knots veering southeast. waves
building to 2 to 4 feet, then subsiding to calm to 2 feet. 
.monday...east winds 5 to 15 knots veering southeast. a chance of
showers. waves building to 2 to 4 feet, then subsiding to 1 to
3 feet. 

$$