fzus63 kdtx 190710
glflh 
expires:202605191515;;812449

open lake forecast for lake huron
national weather service detroit/pontiac mi
310 am edt tue may 19 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 sweeps across the region this evening,
veering winds from southwest to northwest. strong to severe
thunderstorms will be possible ahead of this cold front. high
pressure, 30.50 inches, then builds in mid-week.


lhz361-191515-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
310 am edt tue may 19 2026

...dense fog advisory in effect until 4 pm edt this afternoon...

.today...southeast winds 10 to 15 knots becoming south 15 to
20 knots in the late morning and early afternoon...then veering
to the west late in the afternoon. a chance of showers in the
morning...then showers likely in the afternoon. waves 3 to 5 feet
building to 4 to 6 feet late in the afternoon. waves occasionally
around 8 feet. 
.tonight...northwest winds 15 to 20 knots increasing to 20 to
25 knots early in the morning. showers likely in the evening.
waves 6 to 9 feet. waves occasionally around 12 feet. 
.wednesday...northwest winds 20 to 25 knots with gusts to around
30 knots decreasing to 15 to 20 knots in the late morning and
afternoon. waves 5 to 7 feet. waves occasionally around 10 feet. 
.wednesday night...northwest winds 15 to 20 knots becoming north
5 to 10 knots. waves 3 to 5 feet subsiding to 2 to 4 feet after
midnight. 
.thursday...northeast winds 5 to 10 knots veering to the east
late in the morning...then becoming light and variable late in
the evening. waves 2 feet or less. 
.friday...east winds 5 to 10 knots increasing to 15 to 20 knots.
a chance of. waves 2 feet or less building to 2 to 4 feet. 
.saturday...east winds 20 to 25 knots with gusts to around
30 knots decreasing to 10 to 15 knots. a chance of showers early
in the morning. waves 5 to 7 feet. waves occasionally around
10 feet. 


$$

fzus63 kdtx 190710
glflh 
expires:202605191515;;812450

open lake forecast for lake huron
national weather service detroit/pontiac mi
310 am edt tue may 19 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 sweeps across the region this evening,
veering winds from southwest to northwest. strong to severe
thunderstorms will be possible ahead of this cold front. high
pressure, 30.50 inches, then builds in mid-week.


lhz362-363-191515-
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-
310 am edt tue may 19 2026

...dense fog advisory in effect until 4 pm edt this afternoon...

.today...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 5 to 7 feet. waves occasionally around 10 feet. 
.tonight...southwest winds 15 to 20 knots veering to the
northwest in the late evening and overnight. a chance of showers
in the evening. waves 6 to 9 feet. waves occasionally around
12 feet. 
.wednesday...northwest winds 20 to 25 knots becoming north 15 to
20 knots in the late morning and afternoon. waves 6 to 9 feet.
waves occasionally around 12 feet. 
.wednesday night...north winds 15 to 20 knots becoming northwest
10 to 15 knots after midnight. waves 4 to 6 feet. waves
occasionally around 8 feet. 
.thursday...northeast winds 5 to 10 knots. waves 2 to 4 feet
subsiding to 2 feet or less. 
.friday...east winds 5 to 10 knots increasing to 15 to 20 knots.
a chance of showers by midnight. waves 1 to 3 feet building to
3 to 5 feet . 
.saturday...east winds 15 to 20 knots becoming northeast 10 to
15 knots . a chance of showers until afternoon. waves 4 to
6 feet. 


$$

fzus63 kdtx 190710
glflh 
expires:202605191515;;812451

open lake forecast for lake huron
national weather service detroit/pontiac mi
310 am edt tue may 19 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 sweeps across the region this evening,
veering winds from southwest to northwest. strong to severe
thunderstorms will be possible ahead of this cold front. high
pressure, 30.50 inches, then builds in mid-week.


lhz462>464-191515-
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-
310 am edt tue may 19 2026

...dense fog advisory in effect until 4 pm edt this afternoon...

.today...south winds 10 to 15 knots increasing to 15 to 20 knots
in the late morning and afternoon. a chance of showers and
thunderstorms in the afternoon. waves 3 to 5 feet. 
.tonight...southwest winds 15 to 20 knots becoming west 10 to
15 knots in the late evening and overnight. a chance of showers
and thunderstorms in the evening...then a chance of showers after
midnight. waves 4 to 6 feet. waves occasionally around 8 feet. 
.wednesday...north winds 10 to 15 knots. a chance of showers in
the morning. waves 4 to 6 feet. 
.wednesday night...north winds 10 to 15 knots. waves 4 to 6 feet.
waves occasionally around 8 feet. 
.thursday...northeast winds 10 to 15 knots decreasing to 5 to
10 knots late in the evening. waves 2 to 4 feet subsiding to 1 to
3 feet. 
.friday...east winds 10 to 15 knots increasing to 15 to 20 knots
by midnight. a chance of showers early in the evening. rain
showers likely by midnight. waves 1 to 3 feet building to 3 to
5 feet . 
.saturday...east winds 15 to 20 knots becoming northeast 10 to
15 knots . showers likely early in the morning. a chance of
showers in the late morning and early afternoon. waves 3 to
5 feet subsiding to 2 to 4 feet by midnight. 


$$

fzus63 kmkx 190818
glflm 
expires:202605191530;;815093

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
318 am cdt tue may 19 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...

a dense fog advisory is in effect through this morning for the 
north half of the lake as relatively mild and humid air flows over
the cold lake waters. 

otherwise modest to breezy southerly winds continue from now into
early tuesday afternoon with scattered thunderstorms possible over
the southern two-thirds of the lake this morning. the gusty winds
will be followed by the passage of a cold front late this
afternoon as low pressure of 29.6 inches lifts from northern lake
superior to central quebec. winds will shift to northwesterly 
with the cold frontal passage and remain a bit breezy. high 
pressure around 30.4 inches will then move into the northern great
lakes for wednesday afternoon into thursday. light to modest 
north to northeast winds can be expected.


lmz261-362-364-366-563-565-567-868-191530-
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-
318 am cdt tue may 19 2026

sheboygan wi to pentwater mi north...

...dense fog advisory in effect until noon cdt today...

.today...south winds to 30 kt veering to west. widespread dense
fog this morning, then patchy fog this afternoon. chance of
showers and slight chance of thunderstorms this morning, then
chance of showers this afternoon. waves 5 to 8 ft occasionally to
10 ft subsiding to 4 to 6 ft occasionally to 8 ft. 
.tonight...northwest winds 15 to 25 kt becoming north 10 to
20 kt. waves 4 to 6 ft occasionally to 8 ft subsiding to 2 to
4 ft. 
.wednesday...north winds 10 to 20 kt becoming northeast 15 to
25 kt. waves 2 to 4 ft. 
.wednesday night...northeast winds 10 to 20 kt diminishing to
10 to 15 kt. waves 1 to 3 ft. 
.thursday...northeast winds 10 to 15 kt increasing to 10 to
20 kt. waves 1 to 3 ft. 
.thursday night...northeast winds 10 to 20 kt becoming east 10 to
15 kt. waves 1 to 3 ft. 
.friday...east winds 10 to 20 kt becoming northeast 15 to 25 kt.
waves 1 to 3 ft building to 3 to 5 ft. 
.saturday...northeast winds to 30 kt diminishing to 15 to 25 kt.
waves 3 to 5 ft.  

$$

fzus63 kmkx 190818
glflm 
expires:202605191530;;815094

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
318 am cdt tue may 19 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...

a dense fog advisory is in effect through this morning for the 
north half of the lake as relatively mild and humid air flows over
the cold lake waters. 

otherwise modest to breezy southerly winds continue from now into
early tuesday afternoon with scattered thunderstorms possible over
the southern two-thirds of the lake this morning. the gusty winds
will be followed by the passage of a cold front late this
afternoon as low pressure of 29.6 inches lifts from northern lake
superior to central quebec. winds will shift to northwesterly 
with the cold frontal passage and remain a bit breezy. high 
pressure around 30.4 inches will then move into the northern great
lakes for wednesday afternoon into thursday. light to modest 
north to northeast winds can be expected.


lmz080-669-671-673-675-777-779-870-872-874-876-878-191530-
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-
318 am cdt tue may 19 2026

sheboygan wi to pentwater mi south...

.today...south winds to 30 kt becoming west 15 to 25 kt. patchy
fog this morning. chance of showers and slight chance of
thunderstorms. waves 5 to 8 ft occasionally to 10 ft subsiding to
4 to 6 ft occasionally to 8 ft. 
.tonight...northwest winds 10 to 20 kt becoming north. waves 3 to
5 ft. 
.wednesday...north winds 10 to 20 kt increasing to 15 to 25 kt.
waves 4 to 6 ft occasionally to 8 ft. 
.wednesday night...northeast winds 15 to 25 kt diminishing to
10 to 20 kt. waves 4 to 6 ft occasionally to 8 ft. 
.thursday...northeast winds 10 to 20 kt. waves 2 to 4 ft. 
.thursday night...northeast winds 10 to 20 kt becoming east.
waves 3 to 5 ft. 
.friday...east winds 10 to 20 kt becoming northeast. chance of
showers. waves 3 to 5 ft. 
.saturday...northeast winds 10 to 20 kt becoming north 10 to
15 kt. waves 2 to 4 ft.  

$$

fzus63 kmqt 190801
glfls 
expires:202605192000;;813859

open lake forecast for lake superior
national weather service marquette mi
401 am edt tue may 19 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 29.7 inch low over wisconsin and lower michigan this morning moves 
over eastern lake superior, reaching the ontario/quebec line south 
of james bay at 29.6 inches by this evening. afterwards, a 30.2 inch 
high over the northern plains builds to 30.4 inches tonight into 
wednesday as it tracks eastward into the upper great lakes. the high 
pressure shifts east on thursday while leaving lingering ridging of 
at least 30.2 inches over lake superior into friday. a 29.9 inch low 
lifts into the lower great lakes from the southern plains on 
saturday, but 30.1 inch ridging persists over lake superior.



lsz162-192000-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
401 am edt tue may 19 2026 /301 am cdt tue may 19 2026/

.early this morning...north winds 15 to 25 knots. patchy fog.
rain showers likely. waves 3 to 6 feet occasionally to 8 feet. 
.today...west winds 10 to 20 knots. a slight chance of rain
showers through early afternoon. waves subsiding to 1 to 3 feet. 
.tonight...west winds 5 to 15 knots veering northwest after
midnight. waves subsiding to calm to 2 feet. 
.wednesday...west winds 5 to 15 knots backing south in the
afternoon. waves calm to 2 feet. 
.wednesday night...southeast winds 5 to 15 knots. waves calm to
2 feet. 
.thursday...southeast winds 5 to 15 knots backing east by mid
afternoon. waves calm to 2 feet. 
.thursday night...east winds 5 to 15 knots. waves calm to 2 feet.
.friday...northeast winds 10 to 20 knots. waves building to 2 to
4 feet, then subsiding to calm to 2 feet. 
.saturday...northeast winds 5 to 15 knots. a chance of rain
showers. waves calm to 2 feet. 

$$

fzus63 kmqt 190801
glfls 
expires:202605192000;;813860

open lake forecast for lake superior
national weather service marquette mi
401 am edt tue may 19 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 29.7 inch low over wisconsin and lower michigan this morning moves 
over eastern lake superior, reaching the ontario/quebec line south 
of james bay at 29.6 inches by this evening. afterwards, a 30.2 inch 
high over the northern plains builds to 30.4 inches tonight into 
wednesday as it tracks eastward into the upper great lakes. the high 
pressure shifts east on thursday while leaving lingering ridging of 
at least 30.2 inches over lake superior into friday. a 29.9 inch low 
lifts into the lower great lakes from the southern plains on 
saturday, but 30.1 inch ridging persists over lake superior.



lsz263-192000-
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-
401 am edt tue may 19 2026

.early this morning...north winds 15 to 25 knots. patchy fog.
rain showers likely and a slight chance of thunderstorms. waves
3 to 6 feet occasionally to 8 feet. 
.today...north winds 15 to 25 knots becoming west 10 to 20 knots
in the afternoon. patchy fog through early afternoon. a chance of
rain showers through early afternoon. waves subsiding to 2 to
4 feet. 
.tonight...northwest winds 10 to 20 knots diminishing to 5 to
15 knots after midnight. waves subsiding to calm to 2 feet. 
.wednesday...northwest winds 5 to 15 knots backing southwest in
the afternoon, then backing south late. waves calm to 2 feet. 
.wednesday night...southeast winds 5 to 15 knots veering south
after midnight. waves calm to 2 feet. 
.thursday...south winds 5 to 15 knots backing east by mid
afternoon. waves calm to 2 feet. 
.thursday night...southeast winds 5 to 15 knots veering south
after midnight. waves calm to 2 feet. 
.friday...east winds 10 to 20 knots. waves building to 2 to
4 feet, then subsiding to calm to 2 feet. 
.saturday...east winds 5 to 15 knots. waves calm to 2 feet. 

$$

fzus63 kmqt 190801
glfls 
expires:202605192000;;813861

open lake forecast for lake superior
national weather service marquette mi
401 am edt tue may 19 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 29.7 inch low over wisconsin and lower michigan this morning moves 
over eastern lake superior, reaching the ontario/quebec line south 
of james bay at 29.6 inches by this evening. afterwards, a 30.2 inch 
high over the northern plains builds to 30.4 inches tonight into 
wednesday as it tracks eastward into the upper great lakes. the high 
pressure shifts east on thursday while leaving lingering ridging of 
at least 30.2 inches over lake superior into friday. a 29.9 inch low 
lifts into the lower great lakes from the southern plains on 
saturday, but 30.1 inch ridging persists over lake superior.



lsz264-192000-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
401 am edt tue may 19 2026

...dense fog advisory in effect until 11 am edt this morning...

.early this morning...east winds 15 to 25 knots. patchy dense
fog. rain showers likely and a slight chance of thunderstorms.
waves 3 to 6 feet occasionally to 8 feet. 
.today...north winds 15 to 25 knots backing northwest in the
afternoon. patchy dense fog through early afternoon. a chance of
rain showers through early afternoon. waves subsiding to 2 to
4 feet. 
.tonight...northwest winds 10 to 20 knots increasing to 15 to
25 knots after midnight, then diminishing to 10 to 20 knots late.
waves subsiding to 1 to 3 feet. 
.wednesday...northwest winds 5 to 15 knots backing southwest
late. waves subsiding to calm to 2 feet. 
.wednesday night...south winds 5 to 15 knots. waves calm to
2 feet. 
.thursday...south winds 5 to 15 knots backing southeast by mid
afternoon. waves calm to 2 feet. 
.thursday night...southeast winds 5 to 15 knots veering south
after midnight. waves calm to 2 feet. 
.friday...east winds 5 to 15 knots increasing to 10 to 20 knots.
waves calm to 2 feet. 
.saturday...east winds 5 to 15 knots veering southeast. waves
building to 1 to 3 feet, then subsiding to calm to 2 feet. 

$$

fzus63 kmqt 190801
glfls 
expires:202605192000;;813862

open lake forecast for lake superior
national weather service marquette mi
401 am edt tue may 19 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 29.7 inch low over wisconsin and lower michigan this morning moves 
over eastern lake superior, reaching the ontario/quebec line south 
of james bay at 29.6 inches by this evening. afterwards, a 30.2 inch 
high over the northern plains builds to 30.4 inches tonight into 
wednesday as it tracks eastward into the upper great lakes. the high 
pressure shifts east on thursday while leaving lingering ridging of 
at least 30.2 inches over lake superior into friday. a 29.9 inch low 
lifts into the lower great lakes from the southern plains on 
saturday, but 30.1 inch ridging persists over lake superior.



lsz265-192000-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
401 am edt tue may 19 2026

...dense fog advisory in effect until 11 am edt this morning...

.early this morning...southeast winds 10 to 20 knots. patchy
dense fog. rain showers likely and a slight chance of
thunderstorms. waves 1 to 3 feet. 
.today...west winds 15 to 25 knots increasing to 20 to 30 knots
in the afternoon, then veering northwest late. patchy dense fog
through early afternoon. a chance of rain showers through early
afternoon. waves building to 3 to 6 feet occasionally to 8 feet. 
.tonight...northwest winds 15 to 25 knots diminishing to 10 to
20 knots late. waves subsiding to 2 to 4 feet. 
.wednesday...northwest winds 10 to 20 knots veering north in the
afternoon, then becoming southeast 5 to 15 knots late. waves
subsiding to calm to 2 feet. 
.wednesday night...south winds 5 to 15 knots. waves calm to
2 feet. 
.thursday...southeast winds 5 to 15 knots becoming east 10 to
20 knots by mid afternoon. waves building to 1 to 3 feet. 
.thursday night...southeast winds 10 to 20 knots becoming south
5 to 15 knots after midnight. waves subsiding to calm to 2 feet. 
.friday...east winds 10 to 20 knots. waves building to 1 to
3 feet. 
.saturday...east winds 10 to 20 knots veering southeast. waves
building to 2 to 4 feet, then subsiding to calm to 2 feet. 

$$

fzus63 kmqt 190801
glfls 
expires:202605192000;;813863

open lake forecast for lake superior
national weather service marquette mi
401 am edt tue may 19 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 29.7 inch low over wisconsin and lower michigan this morning moves 
over eastern lake superior, reaching the ontario/quebec line south 
of james bay at 29.6 inches by this evening. afterwards, a 30.2 inch 
high over the northern plains builds to 30.4 inches tonight into 
wednesday as it tracks eastward into the upper great lakes. the high 
pressure shifts east on thursday while leaving lingering ridging of 
at least 30.2 inches over lake superior into friday. a 29.9 inch low 
lifts into the lower great lakes from the southern plains on 
saturday, but 30.1 inch ridging persists over lake superior.



lsz266-192000-
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-
401 am edt tue may 19 2026

...dense fog advisory in effect until 11 am edt this morning...

.early this morning...southeast winds 15 to 25 knots. areas of
dense fog. a chance of showers and thunderstorms. waves 2 to
4 feet. 
.today...south winds 15 to 25 knots becoming west 20 to 30 knots
in the afternoon, then veering northwest late. areas of dense fog
through early afternoon. a chance of rain showers and a slight
chance of thunderstorms through early afternoon. waves building
to 4 to 8 feet occasionally to 10 feet. 
.tonight...northwest winds 20 to 30 knots diminishing to 15 to
25 knots late. waves subsiding to 3 to 6 feet occasionally to
8 feet, then building to 4 to 7 feet occasionally to 9 feet. 
.wednesday...northwest winds 15 to 25 knots diminishing to 10 to
20 knots in the afternoon, then becoming west 5 to 15 knots late.
waves subsiding to calm to 2 feet. 
.wednesday night...west winds 5 to 15 knots backing south after
midnight. waves calm to 2 feet. 
.thursday...south winds 5 to 15 knots backing southeast by mid
afternoon. waves calm to 2 feet. 
.thursday night...southeast winds 10 to 20 knots veering south
after midnight. waves calm to 2 feet. 
.friday...east winds 10 to 20 knots. waves building to 1 to
3 feet. 
.saturday...east winds 10 to 20 knots veering southeast. waves
building to 2 to 4 feet, then subsiding to calm to 2 feet. 

$$

fzus63 kmqt 190801
glfls 
expires:202605192000;;813864

open lake forecast for lake superior
national weather service marquette mi
401 am edt tue may 19 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 29.7 inch low over wisconsin and lower michigan this morning moves 
over eastern lake superior, reaching the ontario/quebec line south 
of james bay at 29.6 inches by this evening. afterwards, a 30.2 inch 
high over the northern plains builds to 30.4 inches tonight into 
wednesday as it tracks eastward into the upper great lakes. the high 
pressure shifts east on thursday while leaving lingering ridging of 
at least 30.2 inches over lake superior into friday. a 29.9 inch low 
lifts into the lower great lakes from the southern plains on 
saturday, but 30.1 inch ridging persists over lake superior.



lsz267-192000-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
401 am edt tue may 19 2026

...dense fog advisory in effect until 2 pm edt this afternoon...

.early this morning...southeast winds 15 to 25 knots. areas of
dense fog. rain showers likely and a chance of thunderstorms.
waves 1 to 3 feet building to 2 to 4 feet. 
.today...south winds 15 to 25 knots becoming west 20 to 30 knots
in the afternoon, then increasing to 30 knots with a few gale
force gusts to 35 knots possible late. areas of dense fog through
early afternoon. a slight chance of thunderstorms through early
afternoon. a slight chance of rain showers. waves building to
5 to 8 feet occasionally to 10 feet. 
.tonight...northwest winds 20 to 30 knots increasing to 30 knots
with a few gale force gusts to 35 knots possible after midnight,
then diminishing to 20 to 30 knots late. waves subsiding to 4 to
8 feet occasionally to 10 feet. 
.wednesday...northwest winds 15 to 25 knots diminishing to 10 to
20 knots late. waves subsiding to 2 to 4 feet. 
.wednesday night...northwest winds 5 to 15 knots backing west
after midnight. waves subsiding to calm to 2 feet. 
.thursday...south winds 5 to 15 knots backing east by mid
afternoon. waves calm to 2 feet. 
.thursday night...southeast winds 5 to 15 knots. waves calm to
2 feet. 
.friday...east winds 5 to 15 knots increasing to 10 to 20 knots.
waves calm to 2 feet. 
.saturday...east winds 10 to 20 knots becoming southeast 5 to
15 knots. waves building to 1 to 3 feet, then subsiding to calm
to 2 feet. 

$$