fzus63 kmqt 080201
glfls 
expires:202606080800;;362087

open lake forecast for lake superior
national weather service marquette mi
1000 pm edt sun jun 7 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... 

ridging of 30.1 inches over lake superior weakens to 30.0 inches 
through tonight as a 29.4 inch low over the black hills expands into 
the northern plains and canadian prairies at 29.3 inches. by monday 
afternoon, expect lake superior to be between a 29.7 inch trough 
over minnesota and 30.2 inch high pressure over new england. the 
troughing weakens to around 29.9 inches before moving over lake 
superior on tuesday. pressure continues to fall over the lake 
through wednesday as a colorado low lifts through the northern 
plains towards lake winnipeg, strengthening to 29.6 inches by 
wednesday night as the low deepens to 29.1 inches over far northern 
ontario. another colorado low lifts into the western great lakes at 
around 29.5 inches by late thursday. 




lsz162-080800-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
1000 pm edt sun jun 7 2026 /900 pm cdt sun jun 7 2026/

.rest of tonight...northeast winds 10 to 20 knots. a slight
chance of showers and thunderstorms after midnight. waves 2 to
4 feet subsiding to 1 to 3 feet. 
.monday...northeast winds 10 to 20 knots. showers likely and a
slight chance of thunderstorms. waves subsiding to calm to
2 feet. 
.monday night...northeast winds 5 to 15 knots. a slight chance of
thunderstorms through midnight. a chance of showers. waves calm
to 2 feet. 
.tuesday...east winds 5 to 15 knots backing northeast by mid
afternoon. waves calm to 2 feet. 
.tuesday night...northeast winds 5 to 15 knots. a chance of
showers and thunderstorms. waves calm to 2 feet. 
.wednesday...east winds 10 to 20 knots. a chance of showers
through early afternoon. a chance of thunderstorms. showers by
mid afternoon. waves calm to 2 feet. 
.wednesday night...south winds 10 to 20 knots becoming southwest
15 to 25 knots after midnight. showers likely and a chance of
thunderstorms through midnight. waves building to 2 to 4 feet. 
.thursday...southwest gales to 35 knots becoming west 20 to
30 knots. a chance of showers. waves building to 6 to 9 feet
occasionally to 11 feet, then subsiding to 3 to 5 feet
occasionally to 7 feet. 
.friday...southwest winds 20 to 30 knots diminishing to 10 to
20 knots. waves building to 4 to 7 feet occasionally to 9 feet,
then subsiding to calm to 2 feet. 

$$

fzus63 kmqt 080201
glfls 
expires:202606080800;;362088

open lake forecast for lake superior
national weather service marquette mi
1000 pm edt sun jun 7 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... 

ridging of 30.1 inches over lake superior weakens to 30.0 inches 
through tonight as a 29.4 inch low over the black hills expands into 
the northern plains and canadian prairies at 29.3 inches. by monday 
afternoon, expect lake superior to be between a 29.7 inch trough 
over minnesota and 30.2 inch high pressure over new england. the 
troughing weakens to around 29.9 inches before moving over lake 
superior on tuesday. pressure continues to fall over the lake 
through wednesday as a colorado low lifts through the northern 
plains towards lake winnipeg, strengthening to 29.6 inches by 
wednesday night as the low deepens to 29.1 inches over far northern 
ontario. another colorado low lifts into the western great lakes at 
around 29.5 inches by late thursday. 




lsz263-080800-
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 sun jun 7 2026

.rest of tonight...southeast winds 10 to 20 knots becoming east
5 to 15 knots late. waves 2 to 4 feet subsiding to calm to
2 feet. 
.monday...east winds 5 to 15 knots backing northeast late. a
chance of showers through early afternoon. a slight chance of
thunderstorms. showers likely by mid afternoon. waves calm to
2 feet. 
.monday night...east winds 5 to 15 knots becoming northeast less
than 10 knots late. showers likely and a slight chance of
thunderstorms through midnight, then a chance of showers after
midnight. waves building to 1 to 3 feet, then subsiding to calm
to 2 feet. 
.tuesday...northeast winds less than 10 knots increasing to 5 to
15 knots by mid afternoon. waves calm to 2 feet. 
.tuesday night...east winds 5 to 15 knots. a chance of showers
and a slight chance of thunderstorms after midnight. waves calm
to 2 feet. 
.wednesday...east winds 5 to 15 knots increasing to 10 to
20 knots by mid afternoon. a chance of showers through early
afternoon. a chance of thunderstorms. showers likely by mid
afternoon. waves building to 2 to 4 feet. 
.wednesday night...south winds 10 to 20 knots becoming southwest
15 to 25 knots after midnight. showers likely through midnight.
waves building to 3 to 5 feet occasionally to 7 feet, then
subsiding to 2 to 4 feet. 
.thursday...southwest gales to 35 knots becoming west 20 to
30 knots. a chance of showers. waves building to 6 to 9 feet
occasionally to 11 feet, then subsiding to 4 to 7 feet
occasionally to 9 feet. 
.friday...southwest winds 20 to 30 knots diminishing to 10 to
20 knots. waves building to 5 to 8 feet occasionally to 10 feet,
then subsiding to 1 to 3 feet. 

$$