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(1/11)
Latest Great Lakes Marine Forecast by KDTX
Issued 5/25/2026 9:36 AM America/New_York.
Valid through 5/25/2026 5:45 PM America/New_York.
fzus63 kdtx 251336
glflh
expires:202605252145;;624237
open lake forecast for lake huron
national weather service detroit/pontiac mi
936 am edt mon may 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...light winds prevail today across the central great
lakes. a cold front slowly sags south across lake huron late
tuesday through wednesday, with breezy southwest winds ahead of
the front. this front moves south across the rest of the area
wednesday into wednesday night, as high pressure builds in from
the north. varying winds are expected through the end of the
week.
lhz361-252145-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
936 am edt mon may 25 2026
.rest of today...light and variable winds becoming east 5 to
10 knots in the afternoon. waves 2 feet or less.
.tonight...southeast winds 5 to 10 knots becoming southwest 10 to
15 knots after midnight...then increasing to 15 to 20 knots early
in the morning. waves 1 to 3 feet building to 3 to 5 feet early
in the morning.
.tuesday...southwest winds 15 to 20 knots becoming west 10 to
15 knots early in the afternoon. waves 3 to 5 feet.
.tuesday night...northwest winds 10 to 15 knots decreasing to
5 to 10 knots after midnight. waves 2 to 4 feet subsiding to 1 to
3 feet in the late evening and overnight.
.wednesday...northwest winds 5 to 10 knots. waves 2 feet or less.
.thursday...north winds 5 to 10 knots early in the morning
becoming light and variable...then becoming southwest 5 to
10 knots early in the evening veering to the west. waves 2 feet
or less.
.friday...northwest winds 5 to 10 knots becoming west 10 to
15 knots . waves 1 to 3 feet.
$$
(2/11)
Latest Great Lakes Marine Forecast by KDTX
Issued 5/25/2026 9:36 AM America/New_York.
Valid through 5/25/2026 5:45 PM America/New_York.
fzus63 kdtx 251336
glflh
expires:202605252145;;624238
open lake forecast for lake huron
national weather service detroit/pontiac mi
936 am edt mon may 25 2026
for waters beyond five nautical miles off shore on lake huron
waves are the significant wave height - the average of the highest
1/3 of the wave spectrum. occasional wave height is the average of
the highest 1/10 of the wave spectrum.
.synopsis...light winds prevail today across the central great
lakes. a cold front slowly sags south across lake huron late
tuesday through wednesday, with breezy southwest winds ahead of
the front. this front moves south across the rest of the area
wednesday into wednesday night, as high pressure builds in from
the north. varying winds are expected through the end of the
week.
lhz362-363-252145-
lake huron from presque isle light to sturgeon point mi beyond
5nm off shore-
lake huron from sturgeon point to alabaster mi beyond 5nm off
shore-
936 am edt mon may 25 2026
.rest of today...south winds 5 to 10 knots increasing to 10 to
15 knots late in the afternoon. waves 2 feet or less building to
2 to 4 feet late in the afternoon.
.tonight...south winds 10 to 15 knots. waves 2 to 4 feet.
.tuesday...southwest winds 15 to 20 knots decreasing to 10 to
15 knots early in the afternoon. waves 3 to 5 feet.
.tuesday night...north winds 10 to 15 knots decreasing to 5 to
10 knots by midnight...then backing to the northwest after
midnight. waves 2 to 4 feet.
.wednesday...north winds 5 to 10 knots increasing to 10 to
15 knots late in the evening. waves 1 to 3 feet.
.thursday...north winds 5 to 10 knots backing to the west by
midnight. waves 1 to 3 feet.
.friday...west winds 5 to 10 knots veering to the northwest by
midnight. waves 1 to 3 feet.
$$
(3/11)
Latest Great Lakes Marine Forecast by KDTX
Issued 5/25/2026 9:36 AM America/New_York.
Valid through 5/25/2026 5:45 PM America/New_York.
fzus63 kdtx 251336
glflh
expires:202605252145;;624239
open lake forecast for lake huron
national weather service detroit/pontiac mi
936 am edt mon may 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...light winds prevail today across the central great
lakes. a cold front slowly sags south across lake huron late
tuesday through wednesday, with breezy southwest winds ahead of
the front. this front moves south across the rest of the area
wednesday into wednesday night, as high pressure builds in from
the north. varying winds are expected through the end of the
week.
lhz462>464-252145-
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-
936 am edt mon may 25 2026
.rest of today...light and variable winds becoming southeast 5 to
10 knots in the afternoon. waves 2 feet or less.
.tonight...south winds 5 to 10 knots increasing to 10 to 15 knots
in the late evening and overnight. waves 1 to 3 feet.
.tuesday...southwest winds 10 to 15 knots. waves 1 to 3 feet
building to 2 to 4 feet in the late morning and afternoon.
.tuesday night...southwest winds 5 to 10 knots veering to the
northwest in the late evening and overnight. waves 1 to 3 feet.
.wednesday...north winds 5 to 10 knots increasing to 10 to
15 knots late in the afternoon. waves 1 to 3 feet.
.thursday...north winds 10 to 15 knots decreasing to 5 to
10 knots early in the evening...then becoming light and variable
by midnight. waves 1 to 3 feet.
.friday...west winds 5 to 10 knots veering to the northwest by
midnight. waves 2 feet or less.
$$
(4/11)
Latest Great Lakes Marine Forecast by KMKX
Issued 5/25/2026 3:08 AM US/Central.
Valid through 5/25/2026 10:30 AM US/Central.
fzus63 kmkx 250808
glflm
expires:202605251530;;612635
open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
308 am cdt mon may 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 30.2 inches will move from lower michigan to
the lower great lakes today. the moist southerly flow over the
cold waters of lake michigan will maintain dense fog over much of
the lake this morning. a dense fog advisory is in effect. areas of
fog, possibly dense, may continue into the afternoon.
modest southerly winds will continue tonight into tuesday, while
high pressure around 30.3 inches is expected to build toward
eastern hudson bay tuesday into wednesday. this will eventually
move a cold front southward over lake michigan for tuesday night
and wednesday. winds will shift northeasterly after the frontal
passage.
lmz080-669-671-673-675-777-779-870-872-874-876-878-251530-
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-
308 am cdt mon may 25 2026
sheboygan wi to pentwater mi south...
...dense fog advisory in effect until 10 am cdt this morning...
.today...south winds 10 to 15 kt increasing to 10 to 20 kt.
patchy dense fog this morning. waves 1 to 3 ft building to 3 to
5 ft.
.tonight...south winds 10 to 20 kt. waves 4 to 6 ft occasionally
to 8 ft.
.tuesday...south winds 10 to 20 kt. waves 2 to 4 ft.
.tuesday night...south winds 10 to 20 kt becoming southwest 5 to
10 kt overnight. waves 2 to 4 ft subsiding to 1 to 3 ft.
.wednesday...northwest winds 10 to 15 kt becoming north 10 to
20 kt. waves 1 to 2 ft building to 3 to 5 ft.
.wednesday night...north winds 15 to 25 kt becoming northeast
10 to 20 kt. waves 4 to 7 ft occasionally to 9 ft.
.thursday...northeast winds 10 to 15 kt becoming north 10 to
20 kt. waves 3 to 5 ft subsiding to 2 to 4 ft.
.friday...northeast winds 5 to 10 kt becoming north. waves 1 to
2 ft.
$$
(5/11)
Latest Great Lakes Marine Forecast by KMKX
Issued 5/25/2026 3:08 AM US/Central.
Valid through 5/25/2026 10:30 AM US/Central.
fzus63 kmkx 250808
glflm
expires:202605251530;;612634
open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
308 am cdt mon may 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 30.2 inches will move from lower michigan to
the lower great lakes today. the moist southerly flow over the
cold waters of lake michigan will maintain dense fog over much of
the lake this morning. a dense fog advisory is in effect. areas of
fog, possibly dense, may continue into the afternoon.
modest southerly winds will continue tonight into tuesday, while
high pressure around 30.3 inches is expected to build toward
eastern hudson bay tuesday into wednesday. this will eventually
move a cold front southward over lake michigan for tuesday night
and wednesday. winds will shift northeasterly after the frontal
passage.
lmz261-362-364-366-563-565-567-868-251530-
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-
308 am cdt mon may 25 2026
sheboygan wi to pentwater mi north...
...dense fog advisory in effect until 10 am cdt this morning...
.today...south winds 10 to 20 kt increasing to 15 to 25 kt.
widespread dense fog this morning. waves 2 to 4 ft building to
3 to 5 ft.
.tonight...south winds 15 to 25 kt becoming southwest to 30 kt.
waves 4 to 7 ft occasionally to 9 ft.
.tuesday...southwest winds 15 to 25 kt. waves 4 to 6 ft
occasionally to 8 ft subsiding to 2 to 4 ft.
.tuesday night...southwest winds 10 to 20 kt backing to northeast
5 to 10 kt overnight. waves 2 to 4 ft.
.wednesday...northeast winds 10 to 15 kt becoming north 10 to
20 kt. waves 1 to 2 ft building to 3 to 5 ft.
.wednesday night...north winds 15 to 25 kt becoming northeast
10 to 20 kt. waves 4 to 6 ft occasionally to 8 ft subsiding to
3 to 5 ft.
.thursday...northeast winds 10 to 15 kt increasing to 10 to
20 kt. waves 1 to 3 ft.
.friday...northwest winds 10 to 15 kt increasing to 10 to 20 kt.
waves 1 to 2 ft.
$$
(6/11)
Latest Great Lakes Marine Forecast by KMQT
Issued 5/25/2026 10:01 AM America/New_York.
Valid through 5/25/2026 4:00 PM America/New_York.
fzus63 kmqt 251401
glfls
expires:202605252000;;624935
open lake forecast for lake superior
national weather service marquette mi
1001 am edt mon may 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...
a 30.1 inch ridge over the lower great lakes today continues towards
new england as a 29.6 inch low moves from manitoba into far northern
ontario. the low drags a 29.8 inch trough over lake superior
tonight. by tuesday night, a 30.4 inch high over the western shores
of hudson bay extends weak ridging over lake superior as a 29.5 inch
trough weakens in the lee of the northern us rockies. the parent
high shifts south into lake superior at 30.3 inches on thursday as
the low pressure troughing over the northern rockies strengthens to
around 29.6 inches. by friday morning, the high weakens to around
30.1 inches as it continues south towards chicago while a weak 30.0
inch trough shifts through northern ontario towards the st. lawrence
river.
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-
1001 am edt mon may 25 2026
.rest of today...south winds 5 to 15 knots increasing to 10 to
20 knots in the afternoon. a slight chance of rain showers. a
slight chance of thunderstorms by mid afternoon. waves calm to
2 feet.
.tonight...south winds 15 to 25 knots veering west late. a slight
chance of thunderstorms through midnight. a slight chance of rain
showers. waves building to 2 to 4 feet, then subsiding to 1 to
3 feet.
.tuesday...northwest winds 10 to 20 knots diminishing to 5 to
15 knots in the afternoon, then backing west late. waves
subsiding to calm to 2 feet.
.tuesday night...west winds 5 to 15 knots veering north after
midnight. waves calm to 2 feet.
.wednesday...north winds 5 to 15 knots increasing to 10 to
20 knots by mid afternoon. waves calm to 2 feet.
.wednesday night...north winds 5 to 15 knots veering northeast
after midnight. waves calm to 2 feet.
.thursday...east winds 5 to 15 knots veering south. waves calm to
2 feet.
.friday...northwest winds 5 to 15 knots veering northeast. waves
calm to 2 feet.
$$
(7/11)
Latest Great Lakes Marine Forecast by KMQT
Issued 5/25/2026 10:01 AM America/New_York.
Valid through 5/25/2026 4:00 PM America/New_York.
fzus63 kmqt 251401
glfls
expires:202605252000;;624936
open lake forecast for lake superior
national weather service marquette mi
1001 am edt mon may 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...
a 30.1 inch ridge over the lower great lakes today continues towards
new england as a 29.6 inch low moves from manitoba into far northern
ontario. the low drags a 29.8 inch trough over lake superior
tonight. by tuesday night, a 30.4 inch high over the western shores
of hudson bay extends weak ridging over lake superior as a 29.5 inch
trough weakens in the lee of the northern us rockies. the parent
high shifts south into lake superior at 30.3 inches on thursday as
the low pressure troughing over the northern rockies strengthens to
around 29.6 inches. by friday morning, the high weakens to around
30.1 inches as it continues south towards chicago while a weak 30.0
inch trough shifts through northern ontario towards the st. lawrence
river.
lsz267-252000-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
1001 am edt mon may 25 2026
.rest of today...south winds 5 to 15 knots backing southeast in
the afternoon, then becoming south 10 to 20 knots late. patchy
fog by late morning. waves calm to 2 feet.
.tonight...south winds 15 to 25 knots veering southwest after
midnight, then diminishing to 10 to 20 knots late. a slight
chance of showers and thunderstorms. waves building to 2 to
4 feet, then subsiding to 1 to 3 feet.
.tuesday...west winds 10 to 20 knots diminishing to 5 to 15 knots
late. waves subsiding to calm to 2 feet.
.tuesday night...west winds 5 to 15 knots veering north after
midnight. waves calm to 2 feet.
.wednesday...north winds 5 to 15 knots becoming northwest 10 to
20 knots by mid afternoon. waves building to 1 to 3 feet.
.wednesday night...north winds 10 to 20 knots becoming northeast
5 to 15 knots after midnight. waves subsiding to calm to 2 feet.
.thursday...northwest winds 5 to 15 knots. waves calm to 2 feet.
.friday...northwest winds 5 to 15 knots veering northeast. waves
calm to 2 feet.
$$
(8/11)
Latest Great Lakes Marine Forecast by KMQT
Issued 5/25/2026 10:01 AM America/New_York.
Valid through 5/25/2026 4:00 PM America/New_York.
fzus63 kmqt 251401
glfls
expires:202605252000;;624931
open lake forecast for lake superior
national weather service marquette mi
1001 am edt mon may 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...
a 30.1 inch ridge over the lower great lakes today continues towards
new england as a 29.6 inch low moves from manitoba into far northern
ontario. the low drags a 29.8 inch trough over lake superior
tonight. by tuesday night, a 30.4 inch high over the western shores
of hudson bay extends weak ridging over lake superior as a 29.5 inch
trough weakens in the lee of the northern us rockies. the parent
high shifts south into lake superior at 30.3 inches on thursday as
the low pressure troughing over the northern rockies strengthens to
around 29.6 inches. by friday morning, the high weakens to around
30.1 inches as it continues south towards chicago while a weak 30.0
inch trough shifts through northern ontario towards the st. lawrence
river.
lsz162-252000-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
1001 am edt mon may 25 2026 /901 am cdt mon may 25 2026/
.rest of today...east winds 5 to 15 knots veering south late. a
slight chance of rain showers by mid afternoon. waves calm to
2 feet.
.tonight...southwest winds 5 to 15 knots veering west late. a
slight chance of showers and thunderstorms through midnight.
waves calm to 2 feet.
.tuesday...northwest winds 5 to 15 knots veering northeast in the
afternoon. waves calm to 2 feet.
.tuesday night...northeast winds 5 to 15 knots. a chance of rain
showers. waves calm to 2 feet.
.wednesday...northeast winds 10 to 20 knots. waves building to
2 to 4 feet.
.wednesday night...northeast winds 10 to 20 knots diminishing to
5 to 15 knots after midnight. waves subsiding to calm to 2 feet.
.thursday...northeast winds 5 to 15 knots backing north. waves
calm to 2 feet.
.friday...east winds 5 to 15 knots backing northeast. waves calm
to 2 feet.
$$
(9/11)
Latest Great Lakes Marine Forecast by KMQT
Issued 5/25/2026 10:01 AM America/New_York.
Valid through 5/25/2026 4:00 PM America/New_York.
fzus63 kmqt 251401
glfls
expires:202605252000;;624932
open lake forecast for lake superior
national weather service marquette mi
1001 am edt mon may 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...
a 30.1 inch ridge over the lower great lakes today continues towards
new england as a 29.6 inch low moves from manitoba into far northern
ontario. the low drags a 29.8 inch trough over lake superior
tonight. by tuesday night, a 30.4 inch high over the western shores
of hudson bay extends weak ridging over lake superior as a 29.5 inch
trough weakens in the lee of the northern us rockies. the parent
high shifts south into lake superior at 30.3 inches on thursday as
the low pressure troughing over the northern rockies strengthens to
around 29.6 inches. by friday morning, the high weakens to around
30.1 inches as it continues south towards chicago while a weak 30.0
inch trough shifts through northern ontario towards the st. lawrence
river.
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-
1001 am edt mon may 25 2026
.rest of today...southwest winds less than 10 knots becoming
south 5 to 15 knots in the afternoon. a slight chance of rain
showers by mid afternoon. waves calm to 2 feet.
.tonight...southwest winds 5 to 15 knots veering west late. a
slight chance of thunderstorms through midnight. a slight chance
of rain showers. waves calm to 2 feet.
.tuesday...west winds 5 to 15 knots veering northeast in the
afternoon, then becoming east less than 10 knots late. waves calm
to 2 feet.
.tuesday night...northeast winds less than 10 knots increasing to
5 to 15 knots after midnight. waves calm to 2 feet.
.wednesday...northeast winds 10 to 20 knots veering east by mid
afternoon. waves building to 2 to 4 feet.
.wednesday night...east winds 5 to 15 knots. waves subsiding to
calm to 2 feet.
.thursday...east winds 5 to 15 knots backing north. waves calm to
2 feet.
.friday...northeast winds 5 to 15 knots veering east. waves calm
to 2 feet.
$$
(10/11)
Latest Great Lakes Marine Forecast by KMQT
Issued 5/25/2026 10:01 AM America/New_York.
Valid through 5/25/2026 4:00 PM America/New_York.
fzus63 kmqt 251401
glfls
expires:202605252000;;624933
open lake forecast for lake superior
national weather service marquette mi
1001 am edt mon may 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...
a 30.1 inch ridge over the lower great lakes today continues towards
new england as a 29.6 inch low moves from manitoba into far northern
ontario. the low drags a 29.8 inch trough over lake superior
tonight. by tuesday night, a 30.4 inch high over the western shores
of hudson bay extends weak ridging over lake superior as a 29.5 inch
trough weakens in the lee of the northern us rockies. the parent
high shifts south into lake superior at 30.3 inches on thursday as
the low pressure troughing over the northern rockies strengthens to
around 29.6 inches. by friday morning, the high weakens to around
30.1 inches as it continues south towards chicago while a weak 30.0
inch trough shifts through northern ontario towards the st. lawrence
river.
lsz264-252000-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
1001 am edt mon may 25 2026
.rest of today...south winds less than 10 knots increasing to
5 to 15 knots in the afternoon. patchy fog by late morning. a
slight chance of rain showers by mid afternoon. waves calm to
2 feet.
.tonight...south winds 5 to 15 knots veering west late. a slight
chance of showers and thunderstorms through midnight. waves
building to 1 to 3 feet.
.tuesday...northwest winds 5 to 15 knots backing west in the
afternoon, then becoming south less than 10 knots late. waves
subsiding to calm to 2 feet.
.tuesday night...south winds less than 10 knots becoming
northeast 5 to 15 knots after midnight. waves calm to 2 feet.
.wednesday...northeast winds 5 to 15 knots. waves calm to 2 feet.
.wednesday night...north winds 5 to 15 knots becoming east less
than 10 knots after midnight. waves calm to 2 feet.
.thursday...east winds less than 10 knots veering south. waves
calm to 2 feet.
.friday...west winds 5 to 15 knots backing east. waves calm to
2 feet.
$$
(11/11)
Latest Great Lakes Marine Forecast by KMQT
Issued 5/25/2026 10:01 AM America/New_York.
Valid through 5/25/2026 4:00 PM America/New_York.
fzus63 kmqt 251401
glfls
expires:202605252000;;624934
open lake forecast for lake superior
national weather service marquette mi
1001 am edt mon may 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...
a 30.1 inch ridge over the lower great lakes today continues towards
new england as a 29.6 inch low moves from manitoba into far northern
ontario. the low drags a 29.8 inch trough over lake superior
tonight. by tuesday night, a 30.4 inch high over the western shores
of hudson bay extends weak ridging over lake superior as a 29.5 inch
trough weakens in the lee of the northern us rockies. the parent
high shifts south into lake superior at 30.3 inches on thursday as
the low pressure troughing over the northern rockies strengthens to
around 29.6 inches. by friday morning, the high weakens to around
30.1 inches as it continues south towards chicago while a weak 30.0
inch trough shifts through northern ontario towards the st. lawrence
river.
lsz265-252000-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
1001 am edt mon may 25 2026
.rest of today...south winds 5 to 15 knots becoming southeast
10 to 20 knots in the afternoon. a slight chance of showers. a
slight chance of thunderstorms by mid afternoon. waves calm to
2 feet.
.tonight...south winds 5 to 15 knots becoming southwest 10 to
20 knots after midnight, then veering west late. a slight chance
of showers. waves calm to 2 feet.
.tuesday...northwest winds 5 to 15 knots veering north in the
afternoon, then veering east late. waves calm to 2 feet.
.tuesday night...south winds 5 to 15 knots backing northeast
after midnight. waves calm to 2 feet.
.wednesday...northeast winds 5 to 15 knots backing north by mid
afternoon. waves calm to 2 feet.
.wednesday night...north winds 5 to 15 knots veering east after
midnight. waves calm to 2 feet.
.thursday...east winds 5 to 15 knots veering south. waves calm to
2 feet.
.friday...northwest winds 5 to 15 knots veering northeast. waves
calm to 2 feet.
$$
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