fzus63 kdtx 251359
glflh 
expires:202604252200;;499251

open lake forecast for lake huron
national weather service detroit/pontiac mi
959 am edt sat apr 25 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...low pressure, 29.70 inches, exits into appalachia
today. broad high pressure, 30.20 inches, then extends into the
great lakes from the north tonight through sunday.


lhz361-362-252200-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
lake huron from presque isle light to sturgeon point mi beyond
5nm off shore-
959 am edt sat apr 25 2026

.rest of today...northeast winds 10 to 15 knots decreasing to
5 to 10 knots late in the afternoon. waves 2 to 4 feet. 
.tonight...north winds 5 to 10 knots. waves 1 to 3 feet. 
.sunday...northeast winds 5 to 10 knots. patchy fog in the
morning. waves 2 feet or less. 
.sunday night...northeast winds 5 to 10 knots veering to the east
after midnight. waves 2 feet or less. 
.monday...east winds 5 to 10 knots becoming southeast to 30 knots
with gusts to 35 knot gales. showers likely late in the evening.
waves 1 to 3 feet building to 8 to 12 feet. waves occasionally
around 15 feet. 
.tuesday...southeast winds to 30 knots with gusts to 40 knot
gales becoming south 20 to 25 knots with gusts to 35 knot gales
in the late morning and early afternoon...then becoming southwest
15 to 20 knots early in the evening becoming west 10 to 15 knots
by midnight. a chance of showers early in the morning. waves
10 to 14 feet subsiding to 3 to 5 feet. waves occasionally around
18 feet. 
.wednesday...northwest winds 10 to 15 knots. waves 1 to 3 feet
building to 3 to 5 feet . 


$$

fzus63 kdtx 251359
glflh 
expires:202604252200;;499252

open lake forecast for lake huron
national weather service detroit/pontiac mi
959 am edt sat apr 25 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...low pressure, 29.70 inches, exits into appalachia
today. broad high pressure, 30.20 inches, then extends into the
great lakes from the north tonight through sunday.


lhz363-462>464-252200-
lake huron from sturgeon point to alabaster mi beyond 5nm off
shore-
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-
959 am edt sat apr 25 2026

.rest of today...northeast winds 10 to 15 knots. waves 3 to
5 feet. 
.tonight...north winds 10 to 15 knots becoming northeast 5 to
10 knots after midnight. waves 2 to 4 feet subsiding to 1 to
3 feet after midnight. 
.sunday...north winds 5 to 10 knots. waves 2 feet or less. 
.sunday night...north winds 5 to 10 knots veering to the east in
the late evening and overnight. waves 2 feet or less. 
.monday...east winds 5 to 10 knots becoming southeast 20 to
25 knots with gusts to 35 knot gales. showers likely and a chance
of thunderstorms late in the evening. waves 1 to 3 feet building
to 8 to 12 feet. waves occasionally around 15 feet. 
.tuesday...southeast winds to 30 knots with gusts to 35 knot
gales becoming south 15 to 20 knots with gusts to around 30 knots
in the late morning and early afternoon...then becoming southwest
10 to 15 knots early in the evening becoming west 5 to 10 knots
by midnight. showers likely early in the morning. waves 6 to
9 feet subsiding to 2 to 4 feet by midnight. waves occasionally
around 12 feet. 
.wednesday...northwest winds 5 to 10 knots. waves 1 to 3 feet
building to 2 to 4 feet by midnight. 


$$

fzus63 kmkx 251354
glflm 
expires:202604260315;;499162

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
854 am cdt sat apr 25 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...

high pressure around 30.1 inches over the area will continue to
bring northerly winds of 10 to 20 knots through today. tonight, 
east winds develop as high pressure exits and low pressure 
develops in the central plains. winds become northeasterly into 
sunday as low pressure around 29.4 inches lifts into the missouri 
river valley. low pressure will continue to lift northward into 
minnesota on monday, bringing gusty southeast winds monday through
monday night. currently not expecting widespread gales, but 
potential for a few gales does exist monday afternoon into monday 
night. a few severe storms may develop across the southern half of
the lake monday night, with hail and wind the main threats. winds
will shift to become southwesterly into tuesday as low pressure 
exits into ontario. tuesday afternoon into tuesday night, winds 
shift to become northwesterly as a cold front works its way 
through the region.


lmz261-362-364-366-563-565-567-868-260315-
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-
854 am cdt sat apr 25 2026

sheboygan wi to pentwater mi north...

.tonight...northeast winds 10 to 20 kt diminishing to 10 to 15 kt
late this evening, then becoming east 5 to 10 kt overnight. waves
1 to 3 ft subsiding to 1 to 2 ft. 
.sunday...southeast winds 5 to 10 kt becoming northeast 10 to
15 kt. waves 1 to 2 ft. 
.sunday night...northeast winds 10 to 15 kt becoming southeast
10 to 20 kt. waves 1 to 2 ft building to 3 to 5 ft. 
.monday...southeast winds 15 to 25 kt increasing to 30 kt. waves
4 to 7 ft occasionally to 9 ft building to 5 to 8 ft occasionally
to 10 ft. 
.monday night...southeast gales to 40 kt becoming south. rain
showers with a chance of thunderstorms. waves 8 to 11 ft
occasionally to 14 ft. 
.tuesday...southwest gales to 35 kt diminishing to 30 kt. chance
of rain showers in the morning. waves 7 to 10 ft occasionally to
13 ft subsiding to 4 to 7 ft occasionally to 9 ft. 
.tuesday night...northwest winds to 30 kt diminishing to 10 to
15 kt. waves 3 to 5 ft subsiding to 1 to 3 ft. 
.wednesday...northwest winds 10 to 20 kt. waves 1 to 3 ft. 
.thursday...northwest winds 10 to 15 kt increasing to 10 to
20 kt. waves 1 to 2 ft.  

$$

fzus63 kmkx 251354
glflm 
expires:202604260315;;499163

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
854 am cdt sat apr 25 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...

high pressure around 30.1 inches over the area will continue to
bring northerly winds of 10 to 20 knots through today. tonight, 
east winds develop as high pressure exits and low pressure 
develops in the central plains. winds become northeasterly into 
sunday as low pressure around 29.4 inches lifts into the missouri 
river valley. low pressure will continue to lift northward into 
minnesota on monday, bringing gusty southeast winds monday through
monday night. currently not expecting widespread gales, but 
potential for a few gales does exist monday afternoon into monday 
night. a few severe storms may develop across the southern half of
the lake monday night, with hail and wind the main threats. winds
will shift to become southwesterly into tuesday as low pressure 
exits into ontario. tuesday afternoon into tuesday night, winds 
shift to become northwesterly as a cold front works its way 
through the region.


lmz080-669-671-673-675-777-779-870-872-874-876-878-260315-
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-
854 am cdt sat apr 25 2026

sheboygan wi to pentwater mi south...

.tonight...north winds 10 to 20 kt veering to east 10 to 15 kt.
waves 3 to 5 ft subsiding to 2 to 4 ft. 
.sunday...east winds 10 to 15 kt becoming northeast. waves 1 to
3 ft. 
.sunday night...northeast winds 10 to 15 kt becoming southeast
10 to 20 kt. waves 1 to 2 ft building to 3 to 5 ft. 
.monday...southeast winds 15 to 25 kt increasing to 30 kt. waves
4 to 7 ft occasionally to 9 ft building to 6 to 9 ft occasionally
to 12 ft. 
.monday night...southeast gales to 40 kt becoming south. showers
with a chance of thunderstorms in the evening, then showers
overnight. waves 7 to 10 ft occasionally to 13 ft. 
.tuesday...southwest winds to 30 kt becoming west 15 to 25 kt.
waves 6 to 9 ft occasionally to 12 ft subsiding to 4 to 6 ft
occasionally to 8 ft. 
.tuesday night...northwest winds 10 to 20 kt diminishing to 10 to
15 kt. waves 2 to 4 ft subsiding to 1 to 3 ft. 
.wednesday...north winds 10 to 20 kt. waves 1 to 3 ft. 
.thursday...north winds 10 to 15 kt. waves 1 to 2 ft.  

$$

fzus63 kmqt 251403
glfls 
expires:202604252000;;499446

open lake forecast for lake superior
national weather service marquette mi
1002 am edt sat apr 25 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 slowly rises over lake superior to 30.1 inches by sunday 
morning as 30.4 inch high pressure over northern quebec builds. the 
pattern remains stable over lake superior sunday while a 29.3 inch 
colorado low develops. throughout monday, this low moves northeast, 
arriving in wisconsin monday night. the low then crosses lake 
superior tuesday, reaching james bay tuesday night. in the wake of 
the low, 30.2 inch high pressure builds over the canadian prairie, 
sending 30.1 inch high pressure over the lake wednesday. this high 
approaches the great lakes slowly thursday.



lsz162-252000-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
1002 am edt sat apr 25 2026 /902 am cdt sat apr 25 2026/

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

$$

fzus63 kmqt 251403
glfls 
expires:202604252000;;499447

open lake forecast for lake superior
national weather service marquette mi
1002 am edt sat apr 25 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 slowly rises over lake superior to 30.1 inches by sunday 
morning as 30.4 inch high pressure over northern quebec builds. the 
pattern remains stable over lake superior sunday while a 29.3 inch 
colorado low develops. throughout monday, this low moves northeast, 
arriving in wisconsin monday night. the low then crosses lake 
superior tuesday, reaching james bay tuesday night. in the wake of 
the low, 30.2 inch high pressure builds over the canadian prairie, 
sending 30.1 inch high pressure over the lake wednesday. this high 
approaches the great lakes slowly thursday.



lsz263-252000-
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-
1002 am edt sat apr 25 2026

.rest of today...west winds less than 10 knots backing southwest
in the afternoon, then becoming east 5 to 15 knots late. waves
calm to 2 feet. 
.tonight...east winds 5 to 15 knots. patchy fog. a slight chance
of rain showers after midnight. waves calm to 2 feet. 
.sunday...east winds 5 to 15 knots backing northeast in the
afternoon. a slight chance of rain showers through early
afternoon. waves calm to 2 feet. 
.sunday night...east winds 5 to 15 knots. waves building to 1 to
3 feet. 
.monday...east winds 15 to 25 knots increasing to 20 to 30 knots
by mid afternoon. a slight chance of rain showers through early
afternoon, then rain showers likely and a slight chance of
thunderstorms by mid afternoon. waves building to 5 to 8 feet
occasionally to 10 feet. 
.monday night...east winds 20 to 30 knots diminishing to 15 to
25 knots after midnight. rain showers. waves building to 7 to
10 feet occasionally to 13 feet, then subsiding to 5 to 8 feet
occasionally to 10 feet. 
.tuesday...west gales to 35 knots becoming northwest 15 to
25 knots. a chance of rain showers. waves subsiding to 4 to
7 feet occasionally to 9 feet, then building to 6 to 9 feet
occasionally to 11 feet. 
.wednesday...west winds 10 to 20 knots becoming northwest 5 to
15 knots. waves subsiding to calm to 2 feet, then building to
1 to 3 feet. 

$$

fzus63 kmqt 251403
glfls 
expires:202604252000;;499448

open lake forecast for lake superior
national weather service marquette mi
1002 am edt sat apr 25 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 slowly rises over lake superior to 30.1 inches by sunday 
morning as 30.4 inch high pressure over northern quebec builds. the 
pattern remains stable over lake superior sunday while a 29.3 inch 
colorado low develops. throughout monday, this low moves northeast, 
arriving in wisconsin monday night. the low then crosses lake 
superior tuesday, reaching james bay tuesday night. in the wake of 
the low, 30.2 inch high pressure builds over the canadian prairie, 
sending 30.1 inch high pressure over the lake wednesday. this high 
approaches the great lakes slowly thursday.



lsz264-252000-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
1002 am edt sat apr 25 2026

.rest of today...northwest winds less than 10 knots backing south
late. waves calm to 2 feet. 
.tonight...southeast winds 5 to 15 knots diminishing to less than
10 knots after midnight, then becoming east 5 to 15 knots late.
patchy fog after midnight. waves calm to 2 feet. 
.sunday...east winds less than 10 knots increasing to 5 to
15 knots in the afternoon. waves calm to 2 feet. 
.sunday night...east winds 5 to 15 knots increasing to 10 to
20 knots after midnight. waves building to 1 to 3 feet. 
.monday...southeast winds 20 to 30 knots backing east by mid
afternoon. a chance of rain showers by mid afternoon. waves
building to 6 to 9 feet occasionally to 11 feet. 
.monday night...southeast gales to 35 knots. rain showers. waves
building to 8 to 12 feet occasionally to 15 feet. 
.tuesday...west gales to 40 knots becoming northwest 20 to
30 knots. a chance of rain showers. waves subsiding to 5 to
8 feet occasionally to 10 feet, then building to 6 to 9 feet
occasionally to 11 feet. 
.wednesday...west winds 10 to 20 knots becoming northwest 5 to
15 knots. waves subsiding to calm to 2 feet, then building to
1 to 3 feet. 

$$

fzus63 kmqt 251403
glfls 
expires:202604252000;;499449

open lake forecast for lake superior
national weather service marquette mi
1002 am edt sat apr 25 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 slowly rises over lake superior to 30.1 inches by sunday 
morning as 30.4 inch high pressure over northern quebec builds. the 
pattern remains stable over lake superior sunday while a 29.3 inch 
colorado low develops. throughout monday, this low moves northeast, 
arriving in wisconsin monday night. the low then crosses lake 
superior tuesday, reaching james bay tuesday night. in the wake of 
the low, 30.2 inch high pressure builds over the canadian prairie, 
sending 30.1 inch high pressure over the lake wednesday. this high 
approaches the great lakes slowly thursday.



lsz265-252000-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
1002 am edt sat apr 25 2026

.rest of today...northwest winds 5 to 15 knots veering east late.
waves calm to 2 feet. 
.tonight...southeast winds 5 to 15 knots. patchy fog after
midnight. waves calm to 2 feet. 
.sunday...southeast winds 10 to 20 knots backing east in the
afternoon. waves calm to 2 feet. 
.sunday night...southeast winds 10 to 20 knots increasing to
15 to 25 knots after midnight. waves building to 1 to 3 feet. 
.monday...southeast winds 20 to 30 knots increasing to gales to
40 knots by mid afternoon. a chance of rain showers by mid
afternoon. waves building to 5 to 8 feet occasionally to 10 feet.
.monday night...southeast gales to 40 knots. rain showers. waves
building to 7 to 11 feet occasionally to 14 feet. 
.tuesday...west gales to 40 knots becoming northwest gales to
35 knots. a chance of rain showers. waves subsiding to 5 to
8 feet occasionally to 10 feet, then building to 6 to 9 feet
occasionally to 11 feet. 
.wednesday...northwest winds 15 to 25 knots diminishing to 10 to
20 knots. waves subsiding to calm to 2 feet. 

$$

fzus63 kmqt 251403
glfls 
expires:202604252000;;499450

open lake forecast for lake superior
national weather service marquette mi
1002 am edt sat apr 25 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 slowly rises over lake superior to 30.1 inches by sunday 
morning as 30.4 inch high pressure over northern quebec builds. the 
pattern remains stable over lake superior sunday while a 29.3 inch 
colorado low develops. throughout monday, this low moves northeast, 
arriving in wisconsin monday night. the low then crosses lake 
superior tuesday, reaching james bay tuesday night. in the wake of 
the low, 30.2 inch high pressure builds over the canadian prairie, 
sending 30.1 inch high pressure over the lake wednesday. this high 
approaches the great lakes slowly thursday.



lsz266-252000-
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-
1002 am edt sat apr 25 2026

.rest of today...north winds 5 to 15 knots backing northwest in
the afternoon, then veering north late. patchy fog by late
morning. waves calm to 2 feet. 
.tonight...east winds 5 to 15 knots veering south after midnight,
then backing southeast late. patchy fog after midnight. waves
calm to 2 feet. 
.sunday...southeast winds 5 to 15 knots becoming east 10 to
20 knots in the afternoon. waves calm to 2 feet. 
.sunday night...southeast winds 10 to 20 knots increasing to
15 to 25 knots after midnight. waves building to 1 to 3 feet. 
.monday...southeast winds 20 to 30 knots increasing to gales to
40 knots by mid afternoon. a slight chance of rain showers by mid
afternoon. waves building to 7 to 10 feet occasionally to
13 feet. 
.monday night...southeast gales to 40 knots. rain showers. waves
building to 8 to 12 feet occasionally to 15 feet. 
.tuesday...west gales to 45 knots becoming northwest gales to
35 knots. a chance of rain showers. waves subsiding to 7 to
10 feet occasionally to 13 feet, then building to 8 to 11 feet
occasionally to 14 feet. 
.wednesday...northwest winds 15 to 25 knots diminishing to 10 to
20 knots. waves subsiding to 1 to 3 feet. 

$$

fzus63 kmqt 251403
glfls 
expires:202604252000;;499451

open lake forecast for lake superior
national weather service marquette mi
1002 am edt sat apr 25 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 slowly rises over lake superior to 30.1 inches by sunday 
morning as 30.4 inch high pressure over northern quebec builds. the 
pattern remains stable over lake superior sunday while a 29.3 inch 
colorado low develops. throughout monday, this low moves northeast, 
arriving in wisconsin monday night. the low then crosses lake 
superior tuesday, reaching james bay tuesday night. in the wake of 
the low, 30.2 inch high pressure builds over the canadian prairie, 
sending 30.1 inch high pressure over the lake wednesday. this high 
approaches the great lakes slowly thursday.



lsz267-252000-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
1002 am edt sat apr 25 2026

.rest of today...northwest winds 5 to 15 knots backing west in
the afternoon, then veering northwest late. waves calm to 2 feet.
.tonight...east winds 5 to 15 knots veering south after midnight,
then backing southeast late. patchy fog after midnight. waves
calm to 2 feet. 
.sunday...southeast winds 5 to 15 knots backing east in the
afternoon, then increasing to 10 to 20 knots late. waves calm to
2 feet. 
.sunday night...southeast winds 10 to 20 knots. waves calm to
2 feet. 
.monday...southeast winds 15 to 25 knots increasing to gales to
40 knots by mid afternoon. waves building to 6 to 9 feet
occasionally to 11 feet. 
.monday night...southeast gales to 45 knots. a chance of rain
showers through midnight. rain showers after midnight. waves
building to 6 to 10 feet occasionally to 13 feet. 
.tuesday...west gales to 35 knots veering northwest. rain showers
likely. waves subsiding to 5 to 8 feet occasionally to 10 feet,
then building to 8 to 11 feet occasionally to 14 feet. 
.wednesday...northwest winds 15 to 25 knots diminishing to 10 to
20 knots. waves subsiding to 1 to 3 feet. 

$$