fzus63 kdtx 030144
glflh 
expires:202605030945;;920888

open lake forecast for lake huron
national weather service detroit/pontiac mi
944 pm edt sat may 2 2026

for waters beyond five nautical miles off shore on lake huron

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 warm front moves through tomorrow which will 
support southwest flow and increasing winds speeds through the 
morning. southwest flow holds through monday before a cold front 
veers wind direction northwest by tuesday.


lhz361-030945-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
944 pm edt sat may 2 2026

.rest of tonight...southwest winds 5 to 10 knots backing to the
south early in the morning. waves 2 feet or less. 
.sunday...south winds 5 to 10 knots increasing to 10 to 15 knots
late in the afternoon. a chance of showers in the morning...then
showers likely in the afternoon. waves 2 feet or less. 
.sunday night...southwest winds 10 to 15 knots decreasing to 5 to
10 knots in the late evening and overnight. a chance of showers
in the evening. waves 1 to 3 feet. 
.monday...south winds 10 to 15 knots increasing to 15 to 20 knots
in the late morning and afternoon. a chance of showers in the
afternoon. waves 2 to 4 feet building to 3 to 5 feet in the late
morning and afternoon. 
.monday night...southwest winds 15 to 20 knots becoming west
10 to 15 knots in the late evening and overnight. a chance of
showers. waves 3 to 5 feet. 
.tuesday...west winds 10 to 15 knots veering to the northwest
late in the evening. waves 2 to 4 feet. 
.wednesday...west winds 5 to 10 knots increasing to 10 to
15 knots early in the evening...then becoming northwest 5 to
10 knots by midnight. waves 1 to 3 feet. 
.thursday...northwest winds 5 to 10 knots increasing to 15 to
20 knots . waves 2 feet or less building to 3 to 5 feet . 


$$

fzus63 kdtx 030144
glflh 
expires:202605030945;;920889

open lake forecast for lake huron
national weather service detroit/pontiac mi
944 pm edt sat may 2 2026

for waters beyond five nautical miles off shore on lake huron

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 warm front moves through tomorrow which will 
support southwest flow and increasing winds speeds through the 
morning. southwest flow holds through monday before a cold front 
veers wind direction northwest by tuesday.


lhz362-363-030945-
lake huron from presque isle light to sturgeon point mi beyond
5nm off shore-
lake huron from sturgeon point to alabaster mi beyond 5nm off
shore-
944 pm edt sat may 2 2026

.rest of tonight...south winds 5 to 10 knots veering to the
southwest early in the morning. waves 2 feet or less. 
.sunday...south winds 10 to 15 knots increasing to 15 to 20 knots
late in the afternoon. a chance of showers. waves 1 to 3 feet
building to 3 to 5 feet in the late morning and afternoon. 
.sunday night...southwest winds 15 to 20 knots decreasing to
10 to 15 knots in the late evening and overnight. waves 3 to
5 feet. 
.monday...south winds 10 to 15 knots increasing to 15 to 20 knots
in the late morning and afternoon. waves 1 to 3 feet building to
4 to 6 feet in the late morning and afternoon. waves occasionally
around 8 feet. 
.monday night...south winds 15 to 20 knots becoming southwest
10 to 15 knots by midnight...then veering to the west after
midnight. a chance of showers. waves 4 to 6 feet. 
.tuesday...west winds 5 to 10 knots. a chance of showers late in
the afternoon. waves 2 to 4 feet. waves occasionally around
8 feet. 
.wednesday...northwest winds 5 to 10 knots veering to the east by
midnight. waves 1 to 3 feet. 
.thursday...northwest winds 5 to 10 knots increasing to 10 to
15 knots by midnight. waves 1 to 3 feet building to 3 to 5 feet .


$$

fzus63 kdtx 030144
glflh 
expires:202605030945;;920890

open lake forecast for lake huron
national weather service detroit/pontiac mi
944 pm edt sat may 2 2026

for waters beyond five nautical miles off shore on lake huron

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 warm front moves through tomorrow which will 
support southwest flow and increasing winds speeds through the 
morning. southwest flow holds through monday before a cold front 
veers wind direction northwest by tuesday.


lhz462>464-030945-
lake huron from port austin to harbor beach beyond 5nm off shore-
lake huron from harbor beach to port sanilac beyond 5nm off shore-
lake huron from port sanilac to port huron beyond 5nm off shore-
944 pm edt sat may 2 2026

.rest of tonight...south winds 5 to 10 knots veering to the
southwest early in the morning. waves 2 feet or less. 
.sunday...southwest winds 10 to 15 knots increasing to 15 to
20 knots late in the afternoon. a chance of showers in the
afternoon. waves 1 to 3 feet building to 3 to 5 feet in the
afternoon. 
.sunday night...southwest winds 15 to 20 knots decreasing to
10 to 15 knots after midnight. a chance of showers. waves 3 to
5 feet. 
.monday...southwest winds 10 to 15 knots becoming south 15 to
20 knots early in the afternoon. waves 1 to 3 feet building to
2 to 4 feet in the late morning and afternoon. 
.monday night...south winds 15 to 20 knots becoming southwest
10 to 15 knots after midnight. a chance of showers. waves 3 to
5 feet. 
.tuesday...northwest winds 5 to 10 knots veering to the northeast
late in the afternoon. a chance of showers. waves 2 to 4 feet
subsiding to 1 to 3 feet. 
.wednesday...north winds 5 to 10 knots. waves 2 feet or less. 
.thursday...north winds 5 to 10 knots backing to the west by
midnight. a chance of showers until early evening. waves 2 feet
or less. 


$$

fzus63 kmkx 030205
glflm 
expires:202605030915;;921459

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
905 pm cdt sat may 2 2026

for waters beyond five nautical miles of shore on lake michigan.

waves are provided as a range of significant wave heights, which
is the average of the highest 1/3 of the wave, along with the
average height of the highest 10% of the waves which will
occasionally be encountered.

.synopsis...

southerly winds will increase into sunday, as low pressure around
29.7 inches approaches the lake. the low pressure system will 
drag a cold front southeast over the region sunday morning into 
late sunday afternoon. winds will become westerly for a brief 
period behind the front sunday night, before returning to 
southwesterly and becoming breezy again on monday ahead of another
stronger low around 29.2 inches and another cold front.


lmz261-362-364-366-563-565-567-868-030915-
lake michigan from seul choix point to rock island passage 5 nm
offshore to mid lake-
lake michigan south of a line from seul choix point to the
mackinac bridge and north of a line from charlevoix mi to south
fox island 5 nm offshore-
lake michigan from charlevoix to point betsie mi 5 nm offshore to
mid lake-
lake michigan from point betsie to manistee mi 5 nm offshore to
mid lake-
lake michigan from rock island passage to sturgeon bay wi-
lake michigan from sturgeon bay to two rivers wi 5 nm offshore to
mid lake-
lake michigan from two rivers to sheboygan wi 5 nm offshore to
mid lake-
lake michigan from pentwater to manistee mi 5 nm offshore to mid
lake-
905 pm cdt sat may 2 2026

sheboygan wi to pentwater mi north...

.rest of tonight...south winds 10 to 20 kt becoming southwest.
chance of rain showers overnight. waves 2 to 4 ft. 
.sunday...south winds 15 to 25 kt becoming southwest to 30 kt.
chance of rain showers. waves 3 to 5 ft building to 4 to 7 ft
occasionally to 9 ft. 
.sunday night...southwest winds 10 to 20 kt. waves 4 to 7 ft
occasionally to 9 ft subsiding to 3 to 5 ft. 
.monday...southwest winds to 30 kt. waves 4 to 7 ft occasionally
to 9 ft. 
.monday night...west winds 15 to 25 kt diminishing to 10 to 15 kt
overnight. chance of rain showers. waves 4 to 7 ft occasionally
to 9 ft subsiding to 3 to 5 ft. 
.tuesday...west winds 10 to 20 kt becoming southwest. waves 1 to
3 ft. 
.tuesday night...northwest winds 10 to 15 kt becoming north.
waves 1 to 2 ft. 
.wednesday...northwest winds 10 to 15 kt becoming west. waves
1 to 2 ft. 
.thursday...northwest winds 10 to 15 kt becoming west 10 to
20 kt. waves 1 to 2 ft.  

$$

fzus63 kmkx 030205
glflm 
expires:202605030915;;921460

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
905 pm cdt sat may 2 2026

for waters beyond five nautical miles of shore on lake michigan.

waves are provided as a range of significant wave heights, which
is the average of the highest 1/3 of the wave, along with the
average height of the highest 10% of the waves which will
occasionally be encountered.

.synopsis...

southerly winds will increase into sunday, as low pressure around
29.7 inches approaches the lake. the low pressure system will 
drag a cold front southeast over the region sunday morning into 
late sunday afternoon. winds will become westerly for a brief 
period behind the front sunday night, before returning to 
southwesterly and becoming breezy again on monday ahead of another
stronger low around 29.2 inches and another cold front.


lmz080-669-671-673-675-777-779-870-872-874-876-878-030915-
lake michigan from michigan city in to st. joseph mi 5 nm
offshore to mid lake-
lake michigan from sheboygan to port washington wi 5 nm offshore
to mid lake-
lake michigan from port washington to north point light wi 5 nm
offshore to mid lake-
lake michigan from north point light to wind point wi 5 nm
offshore to mid lake-
lake michigan from wind point wi to winthrop harbor il 5 nm
offshore to mid lake-
lake michigan from winthrop harbor to wilmette harbor il 5 nm
offshore to mid lake-
lake michigan from wilmette harbor il to michigan city in 5 nm
offshore to mid lake-
lake michigan from whitehall to pentwater mi 5 nm offshore to mid
lake-
lake michigan from grand haven to whitehall mi 5 nm offshore to
mid lake-
lake michigan from holland to grand haven mi 5 nm offshore to mid
lake-
lake michigan from south haven to holland mi 5 nm offshore to mid
lake-
lake michigan from st. joseph to south haven mi 5 nm offshore to
mid lake-
905 pm cdt sat may 2 2026

sheboygan wi to pentwater mi south...

.rest of tonight...south winds 10 to 20 kt becoming southwest
15 to 25 kt. waves 2 to 4 ft. 
.sunday...southwest winds to 30 kt. chance of rain showers. waves
4 to 6 ft occasionally to 8 ft building to 4 to 7 ft occasionally
to 9 ft. 
.sunday night...southwest winds 15 to 25 kt diminishing to 10 to
15 kt. waves 4 to 7 ft occasionally to 9 ft subsiding to 3 to
5 ft. 
.monday...southwest winds 15 to 25 kt becoming south to 30 kt.
waves 3 to 5 ft building to 4 to 6 ft occasionally to 8 ft. 
.monday night...southwest winds 10 to 20 kt becoming northwest.
chance of rain showers. waves 4 to 6 ft occasionally to 8 ft
subsiding to 3 to 5 ft. 
.tuesday...northwest winds 10 to 15 kt becoming northeast 10 to
20 kt. chance of rain showers. waves 2 to 4 ft. 
.tuesday night...west winds 10 to 15 kt becoming northwest. waves
1 to 2 ft. 
.wednesday...north winds 5 to 10 kt increasing to 10 to 15 kt.
waves 1 to 2 ft. 
.thursday...northwest winds 10 to 15 kt becoming west 10 to
20 kt. waves 1 to 2 ft.  

$$

fzus63 kmqt 030201
glfls 
expires:202605030800;;921222

open lake forecast for lake superior
national weather service marquette mi
1001 pm edt sat may 2 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...

29.8 inch troughing over the lake this evening deepens to 29.6 
inches by sunday morning as a low over western minnesota lifts into 
northern ontario. a deepening 29.3 inch low then digs over the 
canadian prairies towards the lake sunday and sunday night before 
just missing to the north at 29.0 inches monday morning; 
nevertheless, troughing deepens to 29.2 inches over northern lake 
superior monday morning. the low lifts into james bay by monday 
evening as 30.1 inch ridging builds just to the east of the canadian 
rockies. as the high pressure ridging shifts to the canadian 
prairies tuesday and wednesday, the now 29.2 inch low continues 
lifting into far northern quebec. we can thus expect ridging to 
slowly build back over lake superior to around 29.9 to 30.0 inches 
by the middle of next week as the ridging spreads into the rest of 
the central conus. the ridging over lake superior does look to 
weaken to around 29.8 to 29.9 inches by thursday night and friday as 
the upper great lakes become sandwiched between a low just off of 
the new england coast and troughing on the lee of the rockies.



lsz162-030800-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
1001 pm edt sat may 2 2026 /901 pm cdt sat may 2 2026/

.rest of tonight...northeast winds 5 to 15 knots backing
northwest late. a chance of rain showers. waves calm to 2 feet. 
.sunday...west winds 5 to 15 knots increasing to 10 to 20 knots
in the afternoon, then becoming southwest 5 to 15 knots late.
waves calm to 2 feet. 
.sunday night...southwest winds 10 to 20 knots increasing to
20 to 30 knots. a chance of rain showers. waves building to 3 to
5 feet occasionally to 7 feet. 
.monday...west winds 20 to 30 knots diminishing to 15 to 25 knots
by mid afternoon. a chance of showers. waves subsiding to 2 to
4 feet. 
.monday night...northwest winds 10 to 20 knots backing west after
midnight. waves subsiding to calm to 2 feet. 
.tuesday...west winds 10 to 20 knots. waves calm to 2 feet. 
.tuesday night...northwest winds 5 to 15 knots. waves calm to
2 feet. 
.wednesday...southwest winds 5 to 15 knots veering northwest.
waves calm to 2 feet. 
.thursday...southwest winds 5 to 15 knots veering west. waves
calm to 2 feet. 

$$

fzus63 kmqt 030201
glfls 
expires:202605030800;;921223

open lake forecast for lake superior
national weather service marquette mi
1001 pm edt sat may 2 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...

29.8 inch troughing over the lake this evening deepens to 29.6 
inches by sunday morning as a low over western minnesota lifts into 
northern ontario. a deepening 29.3 inch low then digs over the 
canadian prairies towards the lake sunday and sunday night before 
just missing to the north at 29.0 inches monday morning; 
nevertheless, troughing deepens to 29.2 inches over northern lake 
superior monday morning. the low lifts into james bay by monday 
evening as 30.1 inch ridging builds just to the east of the canadian 
rockies. as the high pressure ridging shifts to the canadian 
prairies tuesday and wednesday, the now 29.2 inch low continues 
lifting into far northern quebec. we can thus expect ridging to 
slowly build back over lake superior to around 29.9 to 30.0 inches 
by the middle of next week as the ridging spreads into the rest of 
the central conus. the ridging over lake superior does look to 
weaken to around 29.8 to 29.9 inches by thursday night and friday as 
the upper great lakes become sandwiched between a low just off of 
the new england coast and troughing on the lee of the rockies.



lsz263-030800-
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 pm edt sat may 2 2026

.rest of tonight...south winds 5 to 15 knots. a chance of rain
showers. waves calm to 2 feet. 
.sunday...west winds 5 to 15 knots. a slight chance of rain
showers through early afternoon. waves building to 1 to 3 feet. 
.sunday night...southwest winds 5 to 15 knots increasing to 20 to
30 knots. a slight chance of rain showers after midnight. waves
building to 3 to 6 feet occasionally to 8 feet. 
.monday...west winds 20 to 30 knots diminishing to 15 to 25 knots
by mid afternoon. a chance of rain showers. waves building to
4 to 7 feet occasionally to 9 feet, then subsiding to 3 to 6 feet
occasionally to 8 feet. 
.monday night...west winds 10 to 20 knots veering northwest after
midnight. waves subsiding to 2 to 4 feet. 
.tuesday...west winds 5 to 15 knots increasing to 10 to 20 knots
by mid afternoon. waves subsiding to 1 to 3 feet. 
.tuesday night...west winds 5 to 15 knots veering northwest after
midnight. waves subsiding to calm to 2 feet. 
.wednesday...west winds 5 to 15 knots. waves calm to 2 feet. 
.thursday...west winds 5 to 15 knots. waves calm to 2 feet. 

$$

fzus63 kmqt 030201
glfls 
expires:202605030800;;921224

open lake forecast for lake superior
national weather service marquette mi
1001 pm edt sat may 2 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...

29.8 inch troughing over the lake this evening deepens to 29.6 
inches by sunday morning as a low over western minnesota lifts into 
northern ontario. a deepening 29.3 inch low then digs over the 
canadian prairies towards the lake sunday and sunday night before 
just missing to the north at 29.0 inches monday morning; 
nevertheless, troughing deepens to 29.2 inches over northern lake 
superior monday morning. the low lifts into james bay by monday 
evening as 30.1 inch ridging builds just to the east of the canadian 
rockies. as the high pressure ridging shifts to the canadian 
prairies tuesday and wednesday, the now 29.2 inch low continues 
lifting into far northern quebec. we can thus expect ridging to 
slowly build back over lake superior to around 29.9 to 30.0 inches 
by the middle of next week as the ridging spreads into the rest of 
the central conus. the ridging over lake superior does look to 
weaken to around 29.8 to 29.9 inches by thursday night and friday as 
the upper great lakes become sandwiched between a low just off of 
the new england coast and troughing on the lee of the rockies.



lsz264-030800-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
1001 pm edt sat may 2 2026

.rest of tonight...south winds 5 to 15 knots. a chance of rain
showers. waves calm to 2 feet. 
.sunday...west winds less than 10 knots increasing to 5 to
15 knots in the afternoon. a slight chance of rain showers
through early afternoon. waves building to 1 to 3 feet. 
.sunday night...southwest winds 5 to 15 knots becoming south
15 to 25 knots after midnight, then becoming southwest 20 to
30 knots late. a chance of rain showers after midnight. waves
building to 3 to 6 feet occasionally to 8 feet. 
.monday...southwest winds 20 to 30 knots becoming west 15 to
25 knots by mid afternoon. a chance of rain showers. waves
building to 4 to 7 feet occasionally to 9 feet, then subsiding to
3 to 6 feet occasionally to 8 feet. 
.monday night...west winds 15 to 25 knots becoming northwest
10 to 20 knots after midnight. waves subsiding to 2 to 4 feet. 
.tuesday...west winds 10 to 20 knots. waves subsiding to 1 to
3 feet. 
.tuesday night...west winds 5 to 15 knots veering northwest after
midnight. waves subsiding to calm to 2 feet. 
.wednesday...west winds 5 to 15 knots. waves calm to 2 feet. 
.thursday...west winds 5 to 15 knots. waves calm to 2 feet. 

$$

fzus63 kmqt 030201
glfls 
expires:202605030800;;921225

open lake forecast for lake superior
national weather service marquette mi
1001 pm edt sat may 2 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...

29.8 inch troughing over the lake this evening deepens to 29.6 
inches by sunday morning as a low over western minnesota lifts into 
northern ontario. a deepening 29.3 inch low then digs over the 
canadian prairies towards the lake sunday and sunday night before 
just missing to the north at 29.0 inches monday morning; 
nevertheless, troughing deepens to 29.2 inches over northern lake 
superior monday morning. the low lifts into james bay by monday 
evening as 30.1 inch ridging builds just to the east of the canadian 
rockies. as the high pressure ridging shifts to the canadian 
prairies tuesday and wednesday, the now 29.2 inch low continues 
lifting into far northern quebec. we can thus expect ridging to 
slowly build back over lake superior to around 29.9 to 30.0 inches 
by the middle of next week as the ridging spreads into the rest of 
the central conus. the ridging over lake superior does look to 
weaken to around 29.8 to 29.9 inches by thursday night and friday as 
the upper great lakes become sandwiched between a low just off of 
the new england coast and troughing on the lee of the rockies.



lsz265-030800-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
1001 pm edt sat may 2 2026

.rest of tonight...southeast winds 10 to 20 knots becoming south
5 to 15 knots after midnight. a chance of rain showers. waves
calm to 2 feet. 
.sunday...south winds 5 to 15 knots becoming west 10 to 20 knots
in the afternoon. a slight chance of rain showers through early
afternoon. waves calm to 2 feet. 
.sunday night...west winds 10 to 20 knots becoming southwest
15 to 25 knots after midnight, then increasing to 20 to 30 knots
late. a slight chance of rain showers after midnight. waves
building to 2 to 4 feet. 
.monday...southwest gales to 35 knots veering west by mid
afternoon. a chance of showers. waves building to 3 to 5 feet
occasionally to 7 feet. 
.monday night...west winds 20 to 30 knots diminishing to 15 to
25 knots after midnight. waves subsiding to 1 to 3 feet. 
.tuesday...west winds 15 to 25 knots. waves subsiding to calm to
2 feet. 
.tuesday night...west winds 10 to 20 knots. waves calm to 2 feet.
.wednesday...northwest winds 5 to 15 knots backing west. waves
calm to 2 feet. 
.thursday...northwest winds 10 to 20 knots backing west. waves
calm to 2 feet. 

$$

fzus63 kmqt 030201
glfls 
expires:202605030800;;921226

open lake forecast for lake superior
national weather service marquette mi
1001 pm edt sat may 2 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...

29.8 inch troughing over the lake this evening deepens to 29.6 
inches by sunday morning as a low over western minnesota lifts into 
northern ontario. a deepening 29.3 inch low then digs over the 
canadian prairies towards the lake sunday and sunday night before 
just missing to the north at 29.0 inches monday morning; 
nevertheless, troughing deepens to 29.2 inches over northern lake 
superior monday morning. the low lifts into james bay by monday 
evening as 30.1 inch ridging builds just to the east of the canadian 
rockies. as the high pressure ridging shifts to the canadian 
prairies tuesday and wednesday, the now 29.2 inch low continues 
lifting into far northern quebec. we can thus expect ridging to 
slowly build back over lake superior to around 29.9 to 30.0 inches 
by the middle of next week as the ridging spreads into the rest of 
the central conus. the ridging over lake superior does look to 
weaken to around 29.8 to 29.9 inches by thursday night and friday as 
the upper great lakes become sandwiched between a low just off of 
the new england coast and troughing on the lee of the rockies.



lsz266-030800-
lake superior east of a line from manitou island to marquette mi
and west of a line from grand marais mi to the us/canadian border
beyond 5nm from shore-
1001 pm edt sat may 2 2026

.rest of tonight...south winds 10 to 20 knots. a chance of rain
showers. waves calm to 2 feet. 
.sunday...south winds 5 to 15 knots becoming west 10 to 20 knots
in the afternoon. a chance of rain showers. waves calm to 2 feet.
.sunday night...southwest winds 10 to 20 knots backing south
after midnight, then increasing to 20 to 30 knots late. a slight
chance of rain showers after midnight. waves building to 3 to
5 feet occasionally to 7 feet. 
.monday...southwest gales to 35 knots becoming west 20 to
30 knots by mid afternoon. a chance of rain showers. waves
building to 4 to 7 feet occasionally to 9 feet, then subsiding to
3 to 6 feet occasionally to 8 feet. 
.monday night...west winds 20 to 30 knots diminishing to 15 to
25 knots after midnight. a slight chance of rain showers through
midnight. waves subsiding to 3 to 5 feet occasionally to 7 feet. 
.tuesday...west winds 15 to 25 knots. waves subsiding to 2 to
4 feet. 
.tuesday night...west winds 10 to 20 knots veering northwest
after midnight. waves subsiding to calm to 2 feet. 
.wednesday...northwest winds 5 to 15 knots backing west. waves
calm to 2 feet. 
.thursday...northwest winds 5 to 15 knots backing west. waves
calm to 2 feet. 

$$

fzus63 kmqt 030201
glfls 
expires:202605030800;;921227

open lake forecast for lake superior
national weather service marquette mi
1001 pm edt sat may 2 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...

29.8 inch troughing over the lake this evening deepens to 29.6 
inches by sunday morning as a low over western minnesota lifts into 
northern ontario. a deepening 29.3 inch low then digs over the 
canadian prairies towards the lake sunday and sunday night before 
just missing to the north at 29.0 inches monday morning; 
nevertheless, troughing deepens to 29.2 inches over northern lake 
superior monday morning. the low lifts into james bay by monday 
evening as 30.1 inch ridging builds just to the east of the canadian 
rockies. as the high pressure ridging shifts to the canadian 
prairies tuesday and wednesday, the now 29.2 inch low continues 
lifting into far northern quebec. we can thus expect ridging to 
slowly build back over lake superior to around 29.9 to 30.0 inches 
by the middle of next week as the ridging spreads into the rest of 
the central conus. the ridging over lake superior does look to 
weaken to around 29.8 to 29.9 inches by thursday night and friday as 
the upper great lakes become sandwiched between a low just off of 
the new england coast and troughing on the lee of the rockies.



lsz267-030800-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
1001 pm edt sat may 2 2026

.rest of tonight...south winds 5 to 15 knots increasing to 10 to
20 knots late. a chance of rain showers after midnight. waves
calm to 2 feet. 
.sunday...south winds 10 to 20 knots veering west late. a chance
of rain showers. waves calm to 2 feet. 
.sunday night...west winds 10 to 20 knots backing south after
midnight, then increasing to 15 to 25 knots late. a slight chance
of rain showers after midnight. waves building to 3 to 5 feet
occasionally to 7 feet. 
.monday...south winds 20 to 30 knots veering west by mid
afternoon. a chance of rain showers through early afternoon, then
rain showers likely by mid afternoon. waves building to 4 to
7 feet occasionally to 9 feet, then subsiding to 3 to 6 feet
occasionally to 8 feet. 
.monday night...west winds 15 to 25 knots. a slight chance of
rain showers through midnight. waves 3 to 6 feet occasionally to
8 feet. 
.tuesday...west winds 15 to 25 knots. waves subsiding to 2 to
4 feet. 
.tuesday night...west winds 10 to 20 knots veering northwest
after midnight. waves subsiding to calm to 2 feet. 
.wednesday...west winds 5 to 15 knots. waves calm to 2 feet. 
.thursday...northwest winds 5 to 15 knots becoming west 10 to
20 knots. waves calm to 2 feet. 

$$