fzus61 kbuf 030202
glflo 
expires:202605030900;;921254

open lake forecast for lake ontario
national weather service buffalo ny
1002 pm edt sat may 2 2026

for waters beyond five nautical miles of shore on lake ontario

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 29.7 inch low across quebec will retrograde 
northwestward to james bay today. at the same time another 29.7 inch 
low will deepen to 29.2 inches as it tracks from the southeastern 
states to atlantic canada through sunday, while a 30.2 inch high 
ridges across the lower great lakes, then western new england. a 
29.1 inch low over western ontario province monday will then weaken 
to 29.3 inches as it moves to northern quebec through tuesday, with 
its trailing cold front slowly crossing the lake tuesday. the cold 
front will stall just east of the lake on wednesday into thursday 
with a couple waves of low pressure track north along the front near 
or just east of the lake.


loz063>065-030900-
lake ontario open waters from hamlin beach to the saint lawrence
river-
1002 pm edt sat may 2 2026

.overnight...west winds 10 to 15 knots. waves 1 to 3 feet. 
.sunday...west winds 10 to 15 knots becoming southwest 15 to
20 knots. waves 1 to 3 feet. 
.sunday night...southwest winds 15 to 20 knots. a chance of
showers overnight. waves 1 to 3 feet building to 3 to 6 feet. 
.monday...southwest winds 15 to 20 knots becoming south 10 to
15 knots. a chance of showers in the morning. waves 3 to 6 feet
subsiding to 1 to 3 feet. 
.monday night...south winds 10 to 15 knots increasing to 15 to
20 knots. waves 1 to 3 feet building to 3 to 5 feet. 
.tuesday...southwest winds 15 to 20 knots becoming west 5 to
15 knots. showers likely with a chance of thunderstorms during
the day, then showers likely tuesday night. waves 3 to 5 feet
subsiding to 1 to 3 feet. 
.wednesday...west winds 5 to 10 knots becoming northwest. showers
likely during the day, then a chance of showers wednesday night.
waves 2 feet or less. 
.thursday...north winds 5 to 15 knots becoming west and
increasing to 15 to 25 knots. showers likely. waves 2 feet or
less building to 4 to 7 feet. waves occasionally around 9 feet. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kbuf 030202
glflo 
expires:202605030900;;921253

open lake forecast for lake ontario
national weather service buffalo ny
1002 pm edt sat may 2 2026

for waters beyond five nautical miles of shore on lake ontario

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 29.7 inch low across quebec will retrograde 
northwestward to james bay today. at the same time another 29.7 inch 
low will deepen to 29.2 inches as it tracks from the southeastern 
states to atlantic canada through sunday, while a 30.2 inch high 
ridges across the lower great lakes, then western new england. a 
29.1 inch low over western ontario province monday will then weaken 
to 29.3 inches as it moves to northern quebec through tuesday, with 
its trailing cold front slowly crossing the lake tuesday. the cold 
front will stall just east of the lake on wednesday into thursday 
with a couple waves of low pressure track north along the front near 
or just east of the lake.


loz062-030900-
lake ontario open waters from the niagara river to hamlin beach-
1002 pm edt sat may 2 2026

.overnight...west winds 5 to 10 knots. waves 1 to 2 feet. 
.sunday...west winds 10 to 15 knots becoming southwest 15 to
20 knots. waves 1 to 2 feet building to 2 to 4 feet. 
.sunday night...southwest winds 15 to 25 knots. a chance of
showers. waves 3 to 6 feet. 
.monday...southwest winds 15 to 20 knots. a chance of showers in
the morning. waves 3 to 6 feet. 
.monday night...southwest winds 15 to 20 knots. waves 3 to
5 feet. 
.tuesday...southwest winds 15 to 20 knots becoming northwest 5 to
15 knots. showers likely. waves 3 to 5 feet subsiding to 1 to
2 feet. 
.wednesday...northwest winds 10 knots or less becoming north.
showers likely during the day, then a chance of showers wednesday
night. waves 1 foot or less. 
.thursday...north winds 5 to 15 knots becoming west 15 to
20 knots. a chance of showers. waves 1 foot or less building to
2 to 4 feet. 

$$

fzus61 kcle 030111
glfle 
expires:202605030815;;920173

open lake forecast for lake erie
national weather service cleveland oh
911 pm edt sat may 2 2026

for waters beyond five nautical miles of shore on lake erie

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 30.10 inches will continue building across the great
lakes this weekend. low pressure 29.20 inches will move east 
through the upper great lakes on monday, extending a cold front 
across lake erie late tuesday. a trough averaging 29.90 inches 
will linger behind the front wednesday into thursday.


lez164>167-030815-
the islands to vermilion oh beyond 5 nm off shoreline to us-
canadian border-
vermilion to avon point oh beyond 5 nm off shoreline to us-
canadian border-
avon point to willowick oh beyond 5 nm off shoreline to us-
canadian border-willowick to geneva-on-the-
lake oh beyond 5nm off shoreline to us-canadian border-
911 pm edt sat may 2 2026

.overnight...southwest winds 5 to 15 knots becoming west.
waves 1 foot or less. 
.sunday...west winds 10 to 15 knots becoming southwest 15 to
20 knots. a slight chance of showers late. waves 1 to 3 feet. 
.sunday night...southwest winds 15 to 20 knots. waves 2 to 4 feet
building to 3 to 5 feet. 
.monday...southwest winds 15 to 20 knots diminishing to 10 to
15 knots. waves 2 to 4 feet. 
.monday night...southwest winds 10 to 15 knots increasing to
15 to 20 knots. a chance of showers. waves 2 to 4 feet building
to 3 to 5 feet. 
.tuesday...southwest winds 15 to 20 knots becoming north 10 to
15 knots. showers. waves 3 to 5 feet subsiding to 1 to 3 feet. 
.wednesday...north winds 5 to 15 knots becoming northeast. a
chance of showers. waves 1 to 3 feet. 
.thursday...north winds 10 to 15 knots becoming west. a chance of
showers during the day. waves 1 to 3 feet building to 2 to
4 feet. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 030111
glfle 
expires:202605030815;;920174

open lake forecast for lake erie
national weather service cleveland oh
911 pm edt sat may 2 2026

for waters beyond five nautical miles of shore on lake erie

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 30.10 inches will continue building across the great
lakes this weekend. low pressure 29.20 inches will move east 
through the upper great lakes on monday, extending a cold front 
across lake erie late tuesday. a trough averaging 29.90 inches 
will linger behind the front wednesday into thursday.


lez061-168-169-030815-
ripley to buffalo ny extending from 5nm off shoreline to us-
canadian border-geneva-on-the-
lake to conneaut oh beyond 5 nm off shoreline to us-
canadian border-
conneaut oh to ripley ny beyond 5 nm off shoreline to us-
canadian border-
911 pm edt sat may 2 2026

.overnight...west winds 5 to 15 knots becoming southwest.
waves 2 feet or less. 
.sunday...southwest winds 10 to 15 knots increasing to 15 to
20 knots. waves 1 to 3 feet building to 2 to 4 feet. 
.sunday night...southwest winds 15 to 20 knots. waves 2 to 4 feet
building to 3 to 5 feet. 
.monday...southwest winds 15 to 20 knots diminishing to 10 to
15 knots. waves 3 to 5 feet subsiding to 2 to 3 feet. 
.monday night...southwest winds 10 to 15 knots increasing to
15 to 20 knots. a chance of showers. waves 2 to 4 feet. 
.tuesday...southwest winds 15 to 20 knots becoming northeast 5 to
15 knots. showers likely with a chance of thunderstorms during
the day, then showers tuesday night. waves 3 to 5 feet subsiding
to 1 to 2 feet. 
.wednesday...north winds 10 knots or less becoming northeast. a
chance of showers. waves 2 feet or less. 
.thursday...north winds 5 to 15 knots becoming west. a chance of
showers during the day. waves 1 to 3 feet. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 030111
glfle 
expires:202605030815;;920172

open lake forecast for lake erie
national weather service cleveland oh
911 pm edt sat may 2 2026

for waters beyond five nautical miles of shore on lake erie

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 30.10 inches will continue building across the great
lakes this weekend. low pressure 29.20 inches will move east 
through the upper great lakes on monday, extending a cold front 
across lake erie late tuesday. a trough averaging 29.90 inches 
will linger behind the front wednesday into thursday.


lez162-163-030815-
detroit river lt. to maumee bay oh to reno beach oh beyond 5nm
offshoreline to us-canadian border-
reno beach to the islands oh beyond 5nm off shoreline to us-
canadian border-
911 pm edt sat may 2 2026

.overnight...west winds 5 to 15 knots. waves 1 foot or
less. 
.sunday...southwest winds 15 to 20 knots. waves 1 to 3 feet. 
.sunday night...southwest winds 15 to 20 knots. waves 2 to 4 feet
subsiding to 1 to 3 feet. 
.monday...southwest winds 15 to 20 knots diminishing to 10 to
15 knots. waves 1 to 3 feet. 
.monday night...southwest winds 10 to 15 knots increasing to
15 to 20 knots. a chance of showers and thunderstorms in the
evening, then a chance of showers overnight. waves 1 to 3 feet. 
.tuesday...southwest winds 15 to 20 knots becoming north 10 to
15 knots. showers. waves 1 to 3 feet. 
.wednesday...northeast winds 10 to 15 knots becoming north. a
chance of showers. waves 1 to 3 feet. 
.thursday...north winds 10 to 15 knots becoming west 15 to
20 knots. a chance of showers during the day. waves 1 to 3 feet. 

winds and waves higher in and near thunderstorms.

$$

fzus63 kdtx 030709
glfsc 
expires:202605031515;;933332

lake st clair forecast
national weather service detroit/pontiac mi
309 am edt sun may 3 2026

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


lcz460-031515-
lake st clair-
309 am edt sun may 3 2026

...small craft advisory in effect from noon edt today through
this evening...

.today...southwest winds 10 to 15 knots increasing to 15 to 20 knots
with gusts to 30 knots in the afternoon. partly sunny. waves 1 to 3
feet.
.tonight...southwest winds 15 to 20 knots. gusts to 30 knots early
in the evening. partly cloudy. waves 1 to 3 feet.
.monday...southwest winds 10 to 15 knots increasing to 15 to 20
knots in the late morning and afternoon. mostly sunny. waves 1 to 3
feet.
.monday night...southwest winds 15 to 20 knots. partly cloudy. a
chance of light showers. waves 1 to 3 feet.
.tuesday...southwest winds 10 to 15 knots veering to the northwest
in the afternoon and evening. light showers likely in the morning.
rain showers in the afternoon and evening. waves 2 feet or less.
.wednesday...northeast winds 10 to 15 knots. mostly cloudy with
light showers likely. waves 2 feet or less.
.thursday...northwest winds 5 to 10 knots. mostly cloudy. a chance
of showers. waves 2 feet or less.

$$

fzus63 kdtx 030708
glflh 
expires:202605031515;;933321

open lake forecast for lake huron
national weather service detroit/pontiac mi
308 am edt sun may 3 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 today which will support
southwest flow and increasing winds speeds through the morning.
southwest flow holds through tomorrow before a cold front veers
wind direction northwest by tuesday.


lhz462>464-031515-
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-
308 am edt sun may 3 2026

.today...south winds 10 to 15 knots. waves 1 to 3 feet building
to 2 to 4 feet in the afternoon. 
.tonight...southwest winds 15 to 20 knots decreasing to 10 to
15 knots after midnight. 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 in the late evening and overnight. a chance of
showers. waves 3 to 5 feet. 
.tuesday...north winds 5 to 10 knots. a chance of showers. waves
2 to 4 feet subsiding to 1 to 3 feet. 
.wednesday...north winds 5 to 10 knots becoming light and
variable. waves 2 feet or less. 
.thursday...north winds 5 to 10 knots. waves 2 feet or less. 


$$

fzus63 kdtx 030708
glflh 
expires:202605031515;;933319

open lake forecast for lake huron
national weather service detroit/pontiac mi
308 am edt sun may 3 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 today which will support
southwest flow and increasing winds speeds through the morning.
southwest flow holds through tomorrow before a cold front veers
wind direction northwest by tuesday.


lhz361-031515-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
308 am edt sun may 3 2026

.today...south winds 5 to 10 knots increasing to 10 to 15 knots
late in the afternoon. a chance of showers. waves 1 to 3 feet. 
.tonight...southwest winds 10 to 15 knots decreasing to 5 to
10 knots after midnight. 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 1 to 3 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 in the evening. waves 3 to 5 feet subsiding to 2 to
4 feet after midnight. 
.tuesday...west winds 10 to 15 knots becoming northwest 5 to
10 knots late in the evening. waves 2 to 4 feet. 
.wednesday...west winds 5 to 10 knots increasing to 10 to
15 knots until early evening...then becoming northwest 5 to
10 knots by midnight. waves 1 to 3 feet. 
.thursday...northwest winds 5 to 10 knots becoming west 10 to
15 knots . waves 2 feet or less building to 3 to 5 feet . 


$$

fzus63 kdtx 030708
glflh 
expires:202605031515;;933320

open lake forecast for lake huron
national weather service detroit/pontiac mi
308 am edt sun may 3 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 today which will support
southwest flow and increasing winds speeds through the morning.
southwest flow holds through tomorrow before a cold front veers
wind direction northwest by tuesday.


lhz362-363-031515-
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-
308 am edt sun may 3 2026

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


$$

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 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 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. 

$$

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;;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;;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;;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. 

$$