(1/5)
Latest Great Lakes Marine Forecast by KDTX
Issued 9/8/2026 3:42 PM America/New_York.
Valid through 9/8/2026 11:45 PM America/New_York.
fzus63 kdtx 081942
glflh
expires:202609090345;;127157
open lake forecast for lake huron
national weather service detroit/pontiac mi
342 pm edt tue sep 8 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, 29.30 inches, will track across northern
ontario late today and tonight, driving a slow moving cold front
across the great lakes region tonight into wednesday. this system
will provide showers and few thunderstorms to the lakes. high
pressure will expand into the region from the west thursday into
friday.
lhz361-090345-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
342 pm edt tue sep 8 2026
.tonight...south winds 10 to 15 knots. a chance of showers in the
evening...then showers likely after midnight. waves 1 to 3 feet.
.wednesday...southwest winds 10 to 15 knots veering to the west
early in the afternoon...then increasing to 15 to 20 knots late
in the afternoon. a chance of showers in the morning. waves 1 to
3 feet building to 2 to 4 feet late in the afternoon.
.wednesday night...west winds 10 to 15 knots increasing to 15 to
20 knots with gusts to around 30 knots after midnight. waves 2 to
4 feet building to 3 to 5 feet after midnight.
.thursday...northwest winds 10 to 15 knots. waves 2 to 4 feet.
.thursday night...northwest winds 10 to 15 knots becoming light
and variable. waves 2 to 4 feet subsiding to 2 feet or less in
the late evening and overnight.
.friday...light and variable winds becoming south 5 to 10 knots
late in the morning...then backing to the southeast late in the
afternoon becoming south 10 to 15 knots late in the evening.
waves 1 to 3 feet building to 2 to 4 feet late in the evening.
.saturday...south winds 10 to 15 knots veering to the west by
midnight. a chance of showers. waves 2 to 4 feet subsiding to
1 to 3 feet .
.sunday...northwest winds 10 to 15 knots veering to the north by
midnight. waves 1 to 3 feet building to 2 to 4 feet .
$$
(2/5)
Latest Great Lakes Marine Forecast by KDTX
Issued 9/8/2026 3:42 PM America/New_York.
Valid through 9/8/2026 11:45 PM America/New_York.
fzus63 kdtx 081942
glflh
expires:202609090345;;127158
open lake forecast for lake huron
national weather service detroit/pontiac mi
342 pm edt tue sep 8 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, 29.30 inches, will track across northern
ontario late today and tonight, driving a slow moving cold front
across the great lakes region tonight into wednesday. this system
will provide showers and few thunderstorms to the lakes. high
pressure will expand into the region from the west thursday into
friday.
lhz362-363-090345-
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-
342 pm edt tue sep 8 2026
.tonight...south winds 10 to 15 knots. a chance of showers in the
evening...then showers likely after midnight. waves 1 to 3 feet
building to 2 to 4 feet after midnight.
.wednesday...southwest winds 15 to 20 knots. gusts to 30 knots in
the afternoon. showers likely in the morning...then a chance of
showers in the afternoon. waves 3 to 5 feet.
.wednesday night...west winds 10 to 15 knots. a chance of
waterspouts in the evening. waves 3 to 5 feet.
.thursday...northwest winds 10 to 15 knots. waves 2 to 4 feet.
.thursday night...northwest winds 10 to 15 knots becoming north
5 to 10 knots in the late evening and overnight. waves 2 to
4 feet subsiding to 1 to 3 feet after midnight.
.friday...light and variable winds becoming south 5 to 10 knots
late in the morning...then 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.
.saturday...south winds 10 to 15 knots increasing to 15 to
20 knots with gusts to around 30 knots in the late morning and
early afternoon...then decreasing to 10 to 15 knots early in the
evening veering to the southwest by midnight. a chance of showers
. waves 3 to 5 feet subsiding to 2 to 4 feet by midnight.
.sunday...northwest winds 10 to 15 knots decreasing to 5 to
10 knots in the late morning and early afternoon...then
increasing to 10 to 15 knots early in the evening veering to the
northwest 10 to 15 knots by midnight. a chance of showers early
in the morning. waves 1 to 3 feet building to 2 to 4 feet .
$$
(3/5)
Latest Great Lakes Marine Forecast by KDTX
Issued 9/8/2026 3:42 PM America/New_York.
Valid through 9/8/2026 11:45 PM America/New_York.
fzus63 kdtx 081942
glflh
expires:202609090345;;127159
open lake forecast for lake huron
national weather service detroit/pontiac mi
342 pm edt tue sep 8 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, 29.30 inches, will track across northern
ontario late today and tonight, driving a slow moving cold front
across the great lakes region tonight into wednesday. this system
will provide showers and few thunderstorms to the lakes. high
pressure will expand into the region from the west thursday into
friday.
lhz462>464-090345-
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-
342 pm edt tue sep 8 2026
.tonight...southeast winds 10 to 15 knots veering to the south
early in the morning. a chance of showers after midnight. waves
1 to 3 feet building to 2 to 4 feet after midnight.
.wednesday...south winds 10 to 15 knots becoming southwest 15 to
20 knots with gusts to around 30 knots in the afternoon. showers
likely. waves 1 to 3 feet building to 2 to 4 feet in the
afternoon.
.wednesday night...west winds 15 to 20 knots decreasing to 10 to
15 knots in the late evening and overnight. waves 2 to 4 feet
subsiding to 1 to 3 feet after midnight.
.thursday...northwest winds 5 to 10 knots. waves 1 to 3 feet.
.thursday night...north winds 5 to 10 knots. waves 1 to 3 feet.
.friday...northwest winds 5 to 10 knots in the morning becoming
light and variable...then becoming east 5 to 10 knots late in the
afternoon becoming south 10 to 15 knots. waves 1 to 3 feet.
.saturday...south winds 10 to 15 knots. a chance of showers by
midnight. waves 1 to 3 feet.
.sunday...west winds 10 to 15 knots becoming northwest 5 to
10 knots in the late morning and early afternoon...then becoming
north 10 to 15 knots . a chance of showers. waves 2 feet or less
building to 2 to 4 feet by midnight.
$$
(4/5)
Latest Great Lakes Marine Forecast by KMKX
Issued 9/8/2026 2:02 PM US/Central.
Valid through 9/8/2026 10:15 PM US/Central.
fzus63 kmkx 081902
glflm
expires:202609090315;;125857
open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
202 pm cdt tue sep 8 2026
for waters beyond five nautical miles of shore on lake michigan.
waves are provided as a range of significant wave heights, which
is the average of the highest 1/3 of the wave, along with the
average height of the highest 10% of the waves which will
occasionally be encountered.
.synopsis...
southerly winds will increase into tonight as 29.4 inch low
pressure shifts northeast toward the hudson bay. a cold front will
move across lake michigan on wednesday, bringing a generally
westerly wind shift across the lake. periods of showers and
occasional thunderstorms will accompany the approaching/passing
surface front this afternoon through wednesday morning. severe
weather isn't expected.
a new area of 30.1 inch high pressure will move from the northern
great plains across lake michigan wednesday night through thursday
night, bringing a period of light and variable winds to the
waters. the next area of 29.3 inch low pressure will shift from
the canadian great plains across the hudson bay friday afternoon
through saturday night, bringing increasing southwest winds. a few
gale force gusts are possible during this time frame, particularly
over the northern third of lake michigan. will be monitoring
trends through late week for possible headlines. a cold front will
move over lake michigan sunday morning, bringing a northwest wind
shift to the waters.
lmz261-362-364-366-563-565-567-868-090315-
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-
202 pm cdt tue sep 8 2026
sheboygan wi to pentwater mi north...
.tonight...south winds to 30 kt becoming southwest. chance of
showers and thunderstorms this evening, then chance of showers
and slight chance of thunderstorms overnight. waves 4 to 6 ft
occasionally to 8 ft.
.wednesday...southwest winds to 30 kt. chance of showers and
slight chance of thunderstorms in the morning. waves 4 to 6 ft
occasionally to 8 ft.
.wednesday night...west winds to 30 kt becoming northwest 15 to
25 kt, then diminishing to 10 to 20 kt late. waves 3 to 5 ft.
.thursday...northwest winds 10 to 20 kt. waves 2 to 4 ft.
.thursday night...east winds 10 to 15 kt veering to south. waves
1 to 2 ft.
.friday...south winds 15 to 25 kt increasing to 30 kt. waves 2 to
4 ft building to 4 to 6 ft occasionally to 8 ft.
.friday night...south winds to 30 kt. a few southerly gales to 35
kt are possible. waves 5 to 8 ft occasionally to 10 ft.
.saturday...southwest winds to 30 kt. a few southwest gales to 35
kt are possible. chance of showers. waves 5 to 8 ft occasionally
to 10 ft subsiding to 4 to 7 ft occasionally to 9 ft.
.sunday...northwest winds 10 to 20 kt increasing to 15 to 25 kt.
waves 1 to 3 ft.
$$
(5/5)
Latest Great Lakes Marine Forecast by KMKX
Issued 9/8/2026 2:02 PM US/Central.
Valid through 9/8/2026 10:15 PM US/Central.
fzus63 kmkx 081902
glflm
expires:202609090315;;125858
open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
202 pm cdt tue sep 8 2026
for waters beyond five nautical miles of shore on lake michigan.
waves are provided as a range of significant wave heights, which
is the average of the highest 1/3 of the wave, along with the
average height of the highest 10% of the waves which will
occasionally be encountered.
.synopsis...
southerly winds will increase into tonight as 29.4 inch low
pressure shifts northeast toward the hudson bay. a cold front will
move across lake michigan on wednesday, bringing a generally
westerly wind shift across the lake. periods of showers and
occasional thunderstorms will accompany the approaching/passing
surface front this afternoon through wednesday morning. severe
weather isn't expected.
a new area of 30.1 inch high pressure will move from the northern
great plains across lake michigan wednesday night through thursday
night, bringing a period of light and variable winds to the
waters. the next area of 29.3 inch low pressure will shift from
the canadian great plains across the hudson bay friday afternoon
through saturday night, bringing increasing southwest winds. a few
gale force gusts are possible during this time frame, particularly
over the northern third of lake michigan. will be monitoring
trends through late week for possible headlines. a cold front will
move over lake michigan sunday morning, bringing a northwest wind
shift to the waters.
lmz080-669-671-673-675-777-779-870-872-874-876-878-090315-
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-
202 pm cdt tue sep 8 2026
sheboygan wi to pentwater mi south...
.tonight...south winds 15 to 25 kt becoming southwest. slight
chance of showers and thunderstorms this evening, then chance of
showers and slight chance of thunderstorms overnight. waves 3 to
5 ft.
.wednesday...southwest winds 15 to 25 kt becoming west 10 to
20 kt. chance of showers and slight chance of thunderstorms in
the morning, then slight chance of showers in the afternoon.
waves 4 to 6 ft occasionally to 8 ft subsiding to 3 to 5 ft.
.wednesday night...west winds 10 to 20 kt veering to northwest.
waves 2 to 4 ft.
.thursday...north winds 10 to 20 kt. waves 2 to 4 ft.
.thursday night...north winds 10 to 15 kt veering to southeast.
waves 1 to 3 ft subsiding to 1 to 2 ft.
.friday...south winds 10 to 20 kt increasing to 30 kt in the
afternoon. waves 2 to 4 ft building to 4 to 6 ft occasionally to
8 ft.
.friday night...south winds to 30 kt. waves 4 to 6 ft
occasionally to 8 ft building to 5 to 8 ft occasionally to 10 ft.
.saturday...southwest winds to 30 kt becoming west. waves 5 to
8 ft occasionally to 10 ft subsiding to 4 to 7 ft occasionally to
9 ft.
.sunday...north winds 10 to 20 kt. waves 2 to 4 ft.
$$
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