fzus63 kdtx 051343
glflh 
expires:202605052200;;054843

open lake forecast for lake huron
national weather service detroit/pontiac mi
943 am edt tue may 5 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 cold front will ease across western lake erie into
the lower great lakes this evening. low pressure will develop
along this front over the ohio valley, causing wind over the
central great lakes to organize out of the northeast on
wednesday. broad high pressure then builds into the ohio valley
and southern great lakes thursday into friday.


lhz361-052200-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
943 am edt tue may 5 2026

.rest of today...west winds 10 to 15 knots. waves 2 to 4 feet. 
.tonight...west winds 10 to 15 knots becoming northwest 5 to
10 knots in the late evening and overnight. waves 2 to 4 feet
subsiding to 1 to 3 feet in the late evening and overnight. 
.wednesday...west winds 5 to 10 knots increasing to 10 to
15 knots in the late morning and afternoon. waves 1 to 3 feet. 
.wednesday night...west winds 10 to 15 knots becoming northwest
5 to 10 knots in the late evening and overnight. waves 1 to
3 feet. 
.thursday...west winds 5 to 10 knots. waves 2 feet or less. 
.friday...southwest winds 5 to 10 knots backing to the east early
in the evening...then veering to the south by midnight. waves
2 feet or less. 
.saturday...west winds 5 to 10 knots becoming southwest 10 to
15 knots early in the evening...then decreasing to 5 to 10 knots
by midnight. waves 2 feet or less. 


$$

fzus63 kdtx 051343
glflh 
expires:202605052200;;054844

open lake forecast for lake huron
national weather service detroit/pontiac mi
943 am edt tue may 5 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 cold front will ease across western lake erie into
the lower great lakes this evening. low pressure will develop
along this front over the ohio valley, causing wind over the
central great lakes to organize out of the northeast on
wednesday. broad high pressure then builds into the ohio valley
and southern great lakes thursday into friday.


lhz362-363-052200-
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-
943 am edt tue may 5 2026

.rest of today...southwest winds 5 to 10 knots. waves 2 to
4 feet. 
.tonight...north winds 5 to 10 knots. waves 2 to 4 feet subsiding
to 1 to 3 feet in the late evening and overnight. 
.wednesday...north winds 5 to 10 knots. waves 2 feet or less. 
.wednesday night...north winds 5 to 10 knots backing to the
northwest after midnight. waves 1 to 3 feet. 
.thursday...west winds 5 to 10 knots backing to the southwest
late in the morning...then backing to the southeast late in the
afternoon veering to the southwest late in the evening. waves
2 feet or less. 
.friday...southwest winds 5 to 10 knots backing to the southeast
early in the evening...then veering to the south by midnight.
waves 2 feet or less. 
.saturday...southwest winds 5 to 10 knots. waves 1 to 3 feet. 


$$

fzus63 kdtx 051343
glflh 
expires:202605052200;;054845

open lake forecast for lake huron
national weather service detroit/pontiac mi
943 am edt tue may 5 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 cold front will ease across western lake erie into
the lower great lakes this evening. low pressure will develop
along this front over the ohio valley, causing wind over the
central great lakes to organize out of the northeast on
wednesday. broad high pressure then builds into the ohio valley
and southern great lakes thursday into friday.


lhz462>464-052200-
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-
943 am edt tue may 5 2026

.rest of today...north winds 5 to 10 knots veering to the
southeast late in the afternoon. a chance of showers. waves
2 feet or less. 
.tonight...southeast winds 5 to 10 knots backing to the north
after midnight. waves 2 feet or less. 
.wednesday...north winds 5 to 10 knots. waves 2 feet or less. 
.wednesday night...northeast winds 5 to 10 knots early in the
evening becoming light and variable. waves 2 feet or less. 
.thursday...west winds 5 to 10 knots backing to the east late in
the afternoon...then veering to the southwest late in the
evening. waves 2 feet or less. 
.friday...west winds 5 to 10 knots backing to the south. a chance
of showers by midnight. waves 2 feet or less. 
.saturday...southwest winds 5 to 10 knots backing to the south by
midnight. a chance of showers. waves 2 feet or less. 


$$

fzus63 kmkx 051349
glflm 
expires:202605052130;;055094

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
849 am cdt tue may 5 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...

west to northwest winds expected through this morning, becoming 
light and variable by this afternoon and through tonight as a 
weak surface high around 29.9 inches passes over the lake. mainly
light to modest winds are expected wednesday afternoon and night,
before south to southwest winds return thursday into friday. winds
become westerly for a brief period into saturday behind a cold
front before becoming southwesterly once again. gales are not 
forecast at this time.


lmz261-362-364-366-563-565-567-868-052130-
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-
849 am cdt tue may 5 2026

sheboygan wi to pentwater mi north...

.rest of today...west winds 10 to 20 kt becoming southwest. waves
1 to 3 ft. 
.tonight...west winds 10 to 15 kt becoming northwest. waves 1 to
2 ft. 
.wednesday...northwest winds 5 to 10 kt backing to south 10 to
15 kt. waves 1 to 2 ft. 
.wednesday night...west winds 10 to 15 kt diminishing to 5 to
10 kt. waves 1 to 2 ft. 
.thursday...west winds 10 to 15 kt becoming southwest 10 to
20 kt. waves 1 to 2 ft. 
.thursday night...southwest winds 10 to 15 kt diminishing to 5 to
10 kt. waves 1 to 2 ft. 
.friday...southwest winds 10 to 15 kt becoming south. waves 1 to
3 ft. 
.saturday...west winds 10 to 15 kt becoming southwest 10 to
20 kt. waves 1 to 2 ft.  

$$

fzus63 kmkx 051349
glflm 
expires:202605052130;;055095

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
849 am cdt tue may 5 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...

west to northwest winds expected through this morning, becoming 
light and variable by this afternoon and through tonight as a 
weak surface high around 29.9 inches passes over the lake. mainly
light to modest winds are expected wednesday afternoon and night,
before south to southwest winds return thursday into friday. winds
become westerly for a brief period into saturday behind a cold
front before becoming southwesterly once again. gales are not 
forecast at this time.


lmz080-669-671-673-675-777-779-870-872-874-876-878-052130-
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-
849 am cdt tue may 5 2026

sheboygan wi to pentwater mi south...

.rest of today...northwest winds 10 to 15 kt backing to south.
waves 2 to 4 ft subsiding to 1 to 3 ft. 
.tonight...south winds 10 to 15 kt veering to north. waves 1 to
2 ft. 
.wednesday...north winds 5 to 10 kt becoming northeast. waves
1 to 2 ft. 
.wednesday night...southwest winds 5 to 10 kt becoming west.
waves 1 to 2 ft. 
.thursday...west winds 10 to 15 kt becoming southwest. waves 1 to
2 ft. 
.thursday night...south winds 10 to 15 kt becoming southwest.
waves 1 to 3 ft. 
.friday...southwest winds 10 to 20 kt becoming south. waves 1 to
3 ft. 
.saturday...west winds 10 to 15 kt becoming south. waves 1 to
3 ft.  

$$

fzus63 kmqt 051401
glfls 
expires:202605052000;;055485

open lake forecast for lake superior
national weather service marquette mi
1001 am edt tue may 5 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...

a 29.2 inch low over james bay today weakens to 29.3 inches and 
lifts into northern quebec this evening and tonight as 30.2 inch 
ridging builds east of the canadian rockies. wednesday, the high 
pressure over the canadian prairie splits and moves to the canadian 
four corners and the southern plains at 30.0 inches and 30.2 inches 
respectively. by thursday afternoon, lake superior is projected to 
be between a 29.5 inch low over hudson bay, a 29.4 inch low over the 
mouth of the st lawrence river, a low of 29.7 inches over the black 
hills, a high of 30.1 inches over oklahoma, and a weak 29.9 inch 
high over the saskatchewan/manitoba line. the hudson bay and black 
hills lows work to pass a 29.8 inch trough over lake superior 
thursday night into friday, with the lows consolidating over quebec 
by saturday, leaving remnant 29.7 inch troughing over lake superior. 
high pressure toi 30.1 inches builds back over the plains by sunday.



lsz162-052000-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
1001 am edt tue may 5 2026 /901 am cdt tue may 5 2026/

.rest of today...west winds 15 to 25 knots. waves 3 to 5 feet
occasionally to 7 feet subsiding to 1 to 3 feet. 
.tonight...west winds 10 to 20 knots veering northwest after
midnight. a slight chance of rain and snow showers through
midnight. waves subsiding to calm to 2 feet. 
.wednesday...west winds 10 to 20 knots becoming southwest 5 to
15 knots late. waves calm to 2 feet. 
.wednesday night...west winds 5 to 15 knots. waves calm to
2 feet. 
.thursday...west winds 5 to 15 knots backing southwest by mid
afternoon. waves calm to 2 feet. 
.thursday night...southwest winds 5 to 15 knots veering northwest
after midnight. waves calm to 2 feet. 
.friday...southwest winds 5 to 15 knots veering west. waves calm
to 2 feet. 
.saturday...west winds 10 to 20 knots becoming northwest 5 to
15 knots. waves calm to 2 feet. 

$$

fzus63 kmqt 051401
glfls 
expires:202605052000;;055486

open lake forecast for lake superior
national weather service marquette mi
1001 am edt tue may 5 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...

a 29.2 inch low over james bay today weakens to 29.3 inches and 
lifts into northern quebec this evening and tonight as 30.2 inch 
ridging builds east of the canadian rockies. wednesday, the high 
pressure over the canadian prairie splits and moves to the canadian 
four corners and the southern plains at 30.0 inches and 30.2 inches 
respectively. by thursday afternoon, lake superior is projected to 
be between a 29.5 inch low over hudson bay, a 29.4 inch low over the 
mouth of the st lawrence river, a low of 29.7 inches over the black 
hills, a high of 30.1 inches over oklahoma, and a weak 29.9 inch 
high over the saskatchewan/manitoba line. the hudson bay and black 
hills lows work to pass a 29.8 inch trough over lake superior 
thursday night into friday, with the lows consolidating over quebec 
by saturday, leaving remnant 29.7 inch troughing over lake superior. 
high pressure toi 30.1 inches builds back over the plains by sunday.



lsz263-052000-
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 am edt tue may 5 2026

.rest of today...west winds 15 to 25 knots. waves 3 to 6 feet
occasionally to 8 feet. 
.tonight...west winds 10 to 20 knots veering northwest after
midnight, then diminishing to 5 to 15 knots late. a slight chance
of rain and snow showers through midnight. waves subsiding to
1 to 3 feet. 
.wednesday...northwest winds 5 to 15 knots backing west in the
afternoon. waves subsiding to calm to 2 feet, then building to
1 to 3 feet. 
.wednesday night...west winds 5 to 15 knots. waves subsiding to
calm to 2 feet. 
.thursday...west winds 5 to 15 knots backing southwest by mid
afternoon. waves calm to 2 feet. 
.thursday night...southwest winds 5 to 15 knots diminishing to
less than 10 knots after midnight. waves calm to 2 feet. 
.friday...southwest winds 5 to 15 knots veering west. waves calm
to 2 feet. 
.saturday...west winds 5 to 15 knots veering northwest. waves
calm to 2 feet. 

$$

fzus63 kmqt 051401
glfls 
expires:202605052000;;055487

open lake forecast for lake superior
national weather service marquette mi
1001 am edt tue may 5 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...

a 29.2 inch low over james bay today weakens to 29.3 inches and 
lifts into northern quebec this evening and tonight as 30.2 inch 
ridging builds east of the canadian rockies. wednesday, the high 
pressure over the canadian prairie splits and moves to the canadian 
four corners and the southern plains at 30.0 inches and 30.2 inches 
respectively. by thursday afternoon, lake superior is projected to 
be between a 29.5 inch low over hudson bay, a 29.4 inch low over the 
mouth of the st lawrence river, a low of 29.7 inches over the black 
hills, a high of 30.1 inches over oklahoma, and a weak 29.9 inch 
high over the saskatchewan/manitoba line. the hudson bay and black 
hills lows work to pass a 29.8 inch trough over lake superior 
thursday night into friday, with the lows consolidating over quebec 
by saturday, leaving remnant 29.7 inch troughing over lake superior. 
high pressure toi 30.1 inches builds back over the plains by sunday.



lsz264-052000-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
1001 am edt tue may 5 2026

.rest of today...west winds 15 to 25 knots. waves 3 to 6 feet
occasionally to 8 feet. 
.tonight...west winds 10 to 20 knots diminishing to 5 to 15 knots
after midnight, then becoming northwest 10 to 20 knots late.
waves subsiding to 1 to 3 feet. 
.wednesday...northwest winds 5 to 15 knots backing west in the
afternoon. waves subsiding to calm to 2 feet, then building to
1 to 3 feet. 
.wednesday night...west winds 5 to 15 knots. waves subsiding to
calm to 2 feet. 
.thursday...west winds 5 to 15 knots backing southwest by mid
afternoon. waves calm to 2 feet. 
.thursday night...southwest winds 5 to 15 knots diminishing to
less than 10 knots after midnight. waves calm to 2 feet. 
.friday...southwest winds 5 to 15 knots. waves calm to 2 feet. 
.saturday...west winds 5 to 15 knots veering northwest. waves
calm to 2 feet. 

$$

fzus63 kmqt 051401
glfls 
expires:202605052000;;055488

open lake forecast for lake superior
national weather service marquette mi
1001 am edt tue may 5 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...

a 29.2 inch low over james bay today weakens to 29.3 inches and 
lifts into northern quebec this evening and tonight as 30.2 inch 
ridging builds east of the canadian rockies. wednesday, the high 
pressure over the canadian prairie splits and moves to the canadian 
four corners and the southern plains at 30.0 inches and 30.2 inches 
respectively. by thursday afternoon, lake superior is projected to 
be between a 29.5 inch low over hudson bay, a 29.4 inch low over the 
mouth of the st lawrence river, a low of 29.7 inches over the black 
hills, a high of 30.1 inches over oklahoma, and a weak 29.9 inch 
high over the saskatchewan/manitoba line. the hudson bay and black 
hills lows work to pass a 29.8 inch trough over lake superior 
thursday night into friday, with the lows consolidating over quebec 
by saturday, leaving remnant 29.7 inch troughing over lake superior. 
high pressure toi 30.1 inches builds back over the plains by sunday.



lsz265-052000-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
1001 am edt tue may 5 2026

.rest of today...west winds 15 to 25 knots increasing to 20 to
30 knots in the afternoon. waves 1 to 3 feet building to 2 to
4 feet. 
.tonight...west winds 15 to 25 knots diminishing to 10 to
20 knots after midnight. waves subsiding to calm to 2 feet. 
.wednesday...west winds 10 to 20 knots. waves calm to 2 feet. 
.wednesday night...west winds 10 to 20 knots. waves calm to
2 feet. 
.thursday...west winds 10 to 20 knots. waves calm to 2 feet. 
.thursday night...south winds 5 to 15 knots becoming southwest
10 to 20 knots after midnight. waves calm to 2 feet. 
.friday...east winds 10 to 20 knots veering south. waves calm to
2 feet. 
.saturday...west winds 10 to 20 knots veering northwest. waves
calm to 2 feet. 

$$

fzus63 kmqt 051401
glfls 
expires:202605052000;;055489

open lake forecast for lake superior
national weather service marquette mi
1001 am edt tue may 5 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...

a 29.2 inch low over james bay today weakens to 29.3 inches and 
lifts into northern quebec this evening and tonight as 30.2 inch 
ridging builds east of the canadian rockies. wednesday, the high 
pressure over the canadian prairie splits and moves to the canadian 
four corners and the southern plains at 30.0 inches and 30.2 inches 
respectively. by thursday afternoon, lake superior is projected to 
be between a 29.5 inch low over hudson bay, a 29.4 inch low over the 
mouth of the st lawrence river, a low of 29.7 inches over the black 
hills, a high of 30.1 inches over oklahoma, and a weak 29.9 inch 
high over the saskatchewan/manitoba line. the hudson bay and black 
hills lows work to pass a 29.8 inch trough over lake superior 
thursday night into friday, with the lows consolidating over quebec 
by saturday, leaving remnant 29.7 inch troughing over lake superior. 
high pressure toi 30.1 inches builds back over the plains by sunday.



lsz266-052000-
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 am edt tue may 5 2026

.rest of today...west winds 20 to 30 knots. waves 4 to 7 feet
occasionally to 9 feet subsiding to 3 to 6 feet occasionally to
8 feet. 
.tonight...west winds 15 to 25 knots. waves subsiding to 2 to
4 feet. 
.wednesday...northwest winds 10 to 20 knots. waves subsiding to
calm to 2 feet. 
.wednesday night...west winds 5 to 15 knots. waves calm to
2 feet. 
.thursday...west winds 5 to 15 knots. waves calm to 2 feet. 
.thursday night...southwest winds 5 to 15 knots backing south
after midnight. waves calm to 2 feet. 
.friday...southwest winds 5 to 15 knots. waves calm to 2 feet. 
.saturday...west winds 10 to 20 knots veering northwest. waves
calm to 2 feet. 

$$

fzus63 kmqt 051401
glfls 
expires:202605052000;;055490

open lake forecast for lake superior
national weather service marquette mi
1001 am edt tue may 5 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...

a 29.2 inch low over james bay today weakens to 29.3 inches and 
lifts into northern quebec this evening and tonight as 30.2 inch 
ridging builds east of the canadian rockies. wednesday, the high 
pressure over the canadian prairie splits and moves to the canadian 
four corners and the southern plains at 30.0 inches and 30.2 inches 
respectively. by thursday afternoon, lake superior is projected to 
be between a 29.5 inch low over hudson bay, a 29.4 inch low over the 
mouth of the st lawrence river, a low of 29.7 inches over the black 
hills, a high of 30.1 inches over oklahoma, and a weak 29.9 inch 
high over the saskatchewan/manitoba line. the hudson bay and black 
hills lows work to pass a 29.8 inch trough over lake superior 
thursday night into friday, with the lows consolidating over quebec 
by saturday, leaving remnant 29.7 inch troughing over lake superior. 
high pressure toi 30.1 inches builds back over the plains by sunday.



lsz267-052000-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
1001 am edt tue may 5 2026

.rest of today...west winds 20 to 30 knots. waves 4 to 7 feet
occasionally to 9 feet subsiding to 3 to 6 feet occasionally to
8 feet. 
.tonight...west winds 15 to 25 knots diminishing to 10 to
20 knots after midnight. waves subsiding to 2 to 4 feet. 
.wednesday...west winds 10 to 20 knots veering northwest late.
waves subsiding to 1 to 3 feet. 
.wednesday night...west winds 5 to 15 knots backing southwest
after midnight. waves subsiding to calm to 2 feet. 
.thursday...west winds 10 to 20 knots diminishing to 5 to
15 knots by mid afternoon. waves calm to 2 feet. 
.thursday night...southwest winds 5 to 15 knots backing south
after midnight. waves calm to 2 feet. 
.friday...southwest winds 5 to 15 knots. waves calm to 2 feet. 
.saturday...west winds 5 to 15 knots becoming northwest 10 to
20 knots. waves calm to 2 feet. 

$$