(1/6)
Latest Great Lakes Marine Forecast by KCLE
Issued 7/4/2026 3:43 PM America/New_York.
Valid through 7/4/2026 10:15 PM America/New_York.
fzus61 kcle 041943
glfle
expires:202607050215;;413875
open lake forecast for lake erie
national weather service cleveland oh
343 pm edt sat jul 4 2026
for waters beyond five nautical miles of shore on lake erie
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 low pressure system 29.90 inches and cold front will enter the
region tonight. the cold front will cross the lake on sunday, but
the low pressure system will slowly meander east across the ohio
river valley through tuesday. high pressure 30.10 inches will build
from the south on wednesday and remain over the region through
thursday.
lez162>164-050215-
detroit river lt. to maumee bay oh to reno beach oh beyond 5nm
offshoreline to us-canadian border-
reno beach to the islands oh beyond 5nm off shoreline to us-
canadian border-
the islands to vermilion oh beyond 5 nm off shoreline to us-
canadian border-
343 pm edt sat jul 4 2026
.tonight...southwest winds 5 to 10 knots becoming northeast. a
chance of showers and thunderstorms. a chance of showers with a
slight chance of thunderstorms late. waves 1 foot or less.
.sunday...northeast winds 5 to 10 knots. showers likely with a
slight chance of thunderstorms in the morning, then showers
likely with a chance of thunderstorms in the afternoon. waves
2 feet or less.
.sunday night...northeast winds 10 to 15 knots. a chance of
showers and thunderstorms in the evening, then a chance of
showers overnight. waves 1 to 3 feet.
.monday...northeast winds 10 to 15 knots. a chance of showers.
waves 1 to 3 feet.
.monday night...northeast winds 10 to 15 knots. waves 1 to
3 feet.
.tuesday...northeast winds 10 knots or less becoming southeast.
waves 2 feet or less.
.wednesday...west winds 10 knots or less becoming southwest.
waves 1 foot or less.
.thursday...southwest winds 5 to 10 knots becoming west. a chance
of showers and thunderstorms during the day, then showers likely
with a chance of thunderstorms thursday night. waves 2 feet or
less.
winds and waves higher in and near thunderstorms.
$$
(2/6)
Latest Great Lakes Marine Forecast by KDTX
Issued 7/4/2026 3:44 PM America/New_York.
Valid through 7/4/2026 11:45 PM America/New_York.
fzus63 kdtx 041944
glfsc
expires:202607050345;;413887
lake st clair forecast
national weather service detroit/pontiac mi
344 pm edt sat jul 4 2026
waves are the significant wave height - the average of the highest
1/3 of the wave spectrum. occasional wave height is the average of
the highest 1/10 of the wave spectrum.
.synopsis...a weak front will drift through today shifting wind
directions toward the northeast. scattered to numerous showers
with some embedded thunderstorms will also be possible for the
remainder of the weekend, favored across the southern great
lakes. high pressure, 30.10 inches, will build in monday and
tuesday.
lcz460-050345-
lake st clair-
344 pm edt sat jul 4 2026
.tonight...north winds 5 to 10 knots. partly cloudy. numerous
showers and scattered thunderstorms early in the evening...then
scattered showers and thunderstorms late in the evening. waves 2
feet or less.
.sunday...northeast winds 5 to 10 knots increasing to 10 to 15 knots
late in the afternoon. mostly cloudy. a chance of showers and
thunderstorms in the afternoon. waves 2 feet or less.
.sunday night...northeast winds 10 to 15 knots. mostly cloudy early
in the evening becoming partly cloudy. a chance of showers and
thunderstorms early in the evening. waves 2 feet or less.
.monday...northeast winds 10 to 15 knots. mostly sunny. waves 2 feet
or less.
.monday night...northeast winds 10 to 15 knots diminishing to 5 to
10 knots after midnight. mostly clear. waves 2 feet or less.
.tuesday...northeast winds 5 to 10 knots. mostly sunny becoming
clear. waves 2 feet or less.
.wednesday...south winds 5 to 10 knots. mostly clear. waves 2 feet
or less.
.thursday...west winds 10 to 15 knots. partly cloudy. a chance of
showers and thunderstorms. waves 2 feet or less.
$$
(3/6)
Latest Great Lakes Marine Forecast by KDTX
Issued 7/4/2026 3:43 PM America/New_York.
Valid through 7/4/2026 11:45 PM America/New_York.
fzus63 kdtx 041943
glflh
expires:202607050345;;413883
open lake forecast for lake huron
national weather service detroit/pontiac mi
343 pm edt sat jul 4 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 weak front will drift through today shifting wind
directions toward the northeast. scattered to numerous showers
with some embedded thunderstorms will also be possible for the
remainder of the weekend, favored across the southern great
lakes. high pressure, 30.10 inches, will build in monday and
tuesday.
lhz462>464-050345-
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-
343 pm edt sat jul 4 2026
.tonight...north winds 5 to 10 knots. waves 2 feet or less.
.sunday...northeast winds 5 to 10 knots increasing to 10 to
15 knots in the afternoon. waves 1 to 3 feet.
.sunday night...north winds 10 to 15 knots becoming northeast
5 to 10 knots in the late evening and overnight. waves 2 to
4 feet subsiding to 1 to 3 feet after midnight.
.monday...northeast winds 5 to 10 knots. waves 1 to 3 feet.
.monday night...north winds 10 to 15 knots becoming northeast
5 to 10 knots in the late evening and overnight. waves 1 to
3 feet.
.tuesday...light and variable winds. waves 2 feet or less.
.wednesday...light and variable winds becoming southwest 5 to
10 knots in the late morning and early afternoon...then backing
to the south . waves 2 feet or less.
.thursday...southwest winds 5 to 10 knots. a chance of showers.
waves 2 feet or less.
$$
(4/6)
Latest Great Lakes Marine Forecast by KMKX
Issued 7/4/2026 2:53 PM US/Central.
Valid through 7/4/2026 10:15 PM US/Central.
fzus63 kmkx 041953
glflm
expires:202607050315;;414149
open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
253 pm cdt sat jul 4 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 upper great lakes
will remain in place through monday. weak low pressure around
29.9 inches will slowly move east across northern illinois into
indiana during this time. scattered showers and some
thunderstorms are expected over mainly the south half of lake
michigan through this evening. additional showers are possible
sunday. areas of dense fog developed over lake michigan, mainly
in central portions, and is expected to expand southward
overnight. the marine dense fog advisory may need to be
expanded. there is an expectation that the fog would diminish
by mid sunday morning with increasing northeast winds.
lmz366-565-567-868-050315-
lake michigan from point betsie to manistee mi 5 nm offshore to
mid lake-
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-
253 pm cdt sat jul 4 2026
sturgeon bay wi to point betsie mi south to sheboygan wi to
pentwater mi...
...dense fog advisory in effect until 10 am cdt sunday...
.tonight...north winds 10 to 15 kt becoming northeast 5 to 10 kt.
areas of dense fog. waves 1 to 3 ft.
.sunday...northeast winds 10 to 15 kt becoming north 10 to 20 kt.
patchy dense fog in the morning. waves 2 to 4 ft.
.sunday night...northeast winds 10 to 20 kt becoming east 5 to
10 kt after midnight, then becoming northeast late. waves 2 to
4 ft subsiding to 1 to 3 ft.
.monday...northeast winds 5 to 10 kt becoming north 10 to 20 kt
in the afternoon. waves 1 to 2 ft building to 1 to 3 ft.
.monday night...north winds 10 to 20 kt diminishing to 5 to 10 kt
overnight. waves 1 to 3 ft subsiding to 1 to 2 ft.
.tuesday...north winds 5 to 10 kt backing to southwest. waves
1 ft or less.
.tuesday night...southwest winds 5 to 10 kt. waves 1 ft or less.
.wednesday...southwest winds 10 to 15 kt becoming south 10 to
20 kt. waves 1 to 2 ft building to 1 to 3 ft.
.thursday...west winds 10 to 20 kt becoming north 15 to 25 kt.
chance of showers. waves 2 to 4 ft.
$$
(5/6)
Latest Great Lakes Marine Forecast by KMKX
Issued 7/4/2026 2:53 PM US/Central.
Valid through 7/4/2026 10:15 PM US/Central.
fzus63 kmkx 041953
glflm
expires:202607050315;;414150
open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
253 pm cdt sat jul 4 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 upper great lakes
will remain in place through monday. weak low pressure around
29.9 inches will slowly move east across northern illinois into
indiana during this time. scattered showers and some
thunderstorms are expected over mainly the south half of lake
michigan through this evening. additional showers are possible
sunday. areas of dense fog developed over lake michigan, mainly
in central portions, and is expected to expand southward
overnight. the marine dense fog advisory may need to be
expanded. there is an expectation that the fog would diminish
by mid sunday morning with increasing northeast winds.
lmz669-671-673-675-870-872-874-876-050315-
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 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-
253 pm cdt sat jul 4 2026
sheboygan wi to pentwater mi south to winthrop harbor il to south
haven mi...
...dense fog advisory in effect until 10 am cdt sunday...
.tonight...north winds 10 to 15 kt becoming northeast. areas of
dense fog. slight chance of showers. waves 1 to 3 ft.
.sunday...northeast winds 10 to 15 kt becoming north 10 to 20 kt.
patchy dense fog in the morning. waves 2 to 4 ft.
.sunday night...north winds 10 to 20 kt becoming northeast 10 to
15 kt. waves 2 to 4 ft.
.monday...northeast winds 10 to 15 kt becoming north 10 to 20 kt.
waves 2 to 4 ft.
.monday night...north winds 10 to 20 kt becoming northeast 5 to
10 kt overnight. waves 2 to 4 ft.
.tuesday...north winds 5 to 10 kt increasing to 10 to 15 kt.
waves 1 to 2 ft.
.tuesday night...southwest winds 10 to 15 kt diminishing to 5 to
10 kt. waves 1 ft or less.
.wednesday...southwest winds 10 to 15 kt becoming south 10 to
20 kt. waves 1 to 3 ft.
.thursday...southwest winds 10 to 20 kt becoming west 15 to
25 kt. chance of showers. waves 2 to 4 ft.
$$
(6/6)
Latest Great Lakes Marine Forecast by KMKX
Issued 7/4/2026 2:53 PM US/Central.
Valid through 7/4/2026 10:15 PM US/Central.
fzus63 kmkx 041953
glflm
expires:202607050315;;414151
open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
253 pm cdt sat jul 4 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 upper great lakes
will remain in place through monday. weak low pressure around
29.9 inches will slowly move east across northern illinois into
indiana during this time. scattered showers and some
thunderstorms are expected over mainly the south half of lake
michigan through this evening. additional showers are possible
sunday. areas of dense fog developed over lake michigan, mainly
in central portions, and is expected to expand southward
overnight. the marine dense fog advisory may need to be
expanded. there is an expectation that the fog would diminish
by mid sunday morning with increasing northeast winds.
lmz080-777-779-878-050315-
lake michigan from michigan city in to st. joseph mi 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 st. joseph to south haven mi 5 nm offshore to
mid lake-
253 pm cdt sat jul 4 2026
winthrop harbor il to south haven mi south...
.tonight...north winds 10 to 15 kt diminishing to 5 to 10 kt.
patchy fog. slight chance of showers. waves 1 to 2 ft.
.sunday...north winds 5 to 10 kt increasing to 10 to 20 kt.
patchy fog in the morning. waves 1 to 3 ft.
.sunday night...north winds 10 to 20 kt becoming northeast 10 to
15 kt. waves 2 to 4 ft.
.monday...northeast winds 10 to 15 kt becoming north 10 to 20 kt.
waves 1 to 3 ft.
.monday night...north winds 10 to 15 kt becoming northeast 5 to
10 kt. waves 1 to 3 ft.
.tuesday...north winds 5 to 10 kt increasing to 10 to 15 kt.
waves 1 to 2 ft.
.tuesday night...northeast winds 5 to 10 kt veering to south.
waves 1 ft or less.
.wednesday...southwest winds 5 to 10 kt becoming south. waves
nearly calm.
.thursday...southwest winds 10 to 20 kt. chance of showers. waves
1 to 2 ft.
$$
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