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(1/5)
Latest Great Lakes Marine Forecast by KCLE
Issued 3/18/2026 9:31 PM America/New_York.
Valid through 3/19/2026 4:15 AM America/New_York.
fzus61 kcle 190131
glfle
expires:202603190815;;927932
open lake forecast for lake erie
national weather service cleveland oh
931 pm edt wed mar 18 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...
high pressure 30.40 inches will shift east of lake erie tonight,
allowing a weak warm front to move across the lake on thursday.
another warm front will cross the lake on friday, followed by a
weak cold front on sunday. high pressure 30.40 inches will build
southeast across lake erie early next week.
lez162>164-190815-
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-
931 pm edt wed mar 18 2026
.overnight...south winds 10 to 15 knots becoming southwest.
waves 1 to 2 feet.
.thursday...southwest winds 10 knots or less becoming west. a
chance of rain showers with a slight chance of snow showers
early, then a chance of rain showers late in the morning. a
slight chance of rain showers early in the afternoon. waves
2 feet or less.
.thursday night...northwest winds 10 knots or less becoming
south. waves 1 foot or less.
.friday...south winds 10 to 15 knots becoming southwest. a chance
of rain showers in the afternoon. waves 1 foot or less.
.friday night...west winds 5 to 10 knots becoming northwest. a
chance of rain showers in the evening. waves 1 to 2 feet.
.saturday...northwest winds 5 to 15 knots becoming southwest
15 to 20 knots. waves 2 feet or less.
.sunday...west winds 15 to 25 knots becoming north. a chance of
rain during the day. waves 1 to 3 feet building to 3 to 6 feet.
.monday...north winds 15 to 25 knots becoming northeast and
diminishing to 10 to 15 knots. waves 3 to 6 feet subsiding to
1 to 3 feet.
$$
(2/5)
Latest Great Lakes Marine Forecast by KDTX
Issued 3/18/2026 9:11 PM America/New_York.
Valid through 3/19/2026 5:15 AM America/New_York.
fzus63 kdtx 190111
glfsc
expires:202603190915;;927644
lake st clair forecast
national weather service detroit/pontiac mi
911 pm edt wed mar 18 2026
waves are the significant wave height - the average of the highest
1/3 of the wave spectrum. occasional wave height is the average of
the highest 1/10 of the wave spectrum.
.synopsis...a weakening cold front and diffuse pressure pattern
dominate the great lakes thursday, followed by a compact clipper
that tracks through on friday. weak high pressure this weekend
before a strong cold front sinks across the region with gusty
northeast wind on sunday.
lcz460-190915-
lake st clair-
911 pm edt wed mar 18 2026
.rest of tonight...south winds 10 to 15 knots becoming southwest 5
to 10 knots early in the morning. mostly cloudy. waves 2 feet or
less.
.thursday...west winds 5 to 10 knots early in the morning becoming
light and variable. partly sunny. waves 2 feet or less.
.thursday night...light and variable winds becoming southeast 5 to
10 knots in the late evening and overnight. partly cloudy becoming
mostly cloudy. waves 2 feet or less.
.friday...south winds 5 to 10 knots becoming southwest 10 to 15
knots in the late morning and afternoon. mostly cloudy with a chance
of light rain. waves 2 feet or less.
.friday night...northwest winds 5 to 10 knots. mostly cloudy early
in the evening becoming partly cloudy. a chance of light rain early
in the evening. waves 2 feet or less.
.saturday...northwest winds 5 to 10 knots backing to the southwest
in the afternoon...then becoming south 10 to 15 knots in the
evening. mostly cloudy in the morning becoming partly cloudy. waves
2 feet or less.
.sunday...north winds 15 to 20 knots. mostly cloudy with a chance of
light rain. waves 1 to 3 feet.
.monday...northeast winds 15 to 20 knots. partly cloudy. waves 1 to
3 feet.
$$
(3/5)
Latest Great Lakes Marine Forecast by KDTX
Issued 3/18/2026 9:11 PM America/New_York.
Valid through 3/19/2026 5:15 AM America/New_York.
fzus63 kdtx 190111
glflh
expires:202603190915;;927642
open lake forecast for lake huron
national weather service detroit/pontiac mi
911 pm edt wed mar 18 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 weakening cold front and diffuse pressure pattern
dominate the great lakes thursday, followed by a compact clipper
that tracks through on friday. weak high pressure this weekend
before a strong cold front sinks across the region with gusty
northeast wind on sunday.
lhz363-462>464-190915-
lake huron from sturgeon point to alabaster mi beyond 5nm off
shore-
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-
911 pm edt wed mar 18 2026
.rest of tonight...south winds 15 to 20 knots decreasing to 10 to
15 knots after midnight. waves 4 to 6 feet. waves occasionally
around 8 feet.
.thursday...southwest winds 5 to 10 knots. waves 2 to 4 feet
subsiding to 1 to 3 feet in the late morning and afternoon.
.thursday night...north winds 5 to 10 knots veering to the
northeast by midnight...then veering to the south after midnight.
waves 2 feet or less.
.friday...south winds 10 to 15 knots. a chance of rain. waves
1 to 3 feet.
.friday night...northwest winds 5 to 10 knots becoming west 10 to
15 knots after midnight. waves 1 to 3 feet.
.saturday...west winds 10 to 15 knots backing to the south late
in the afternoon...then becoming west 15 to 20 knots late in the
evening. a chance of rain and snow late in the evening. waves
3 to 5 feet.
.sunday...north winds 20 to 25 knots. a chance of rain and snow
early in the morning. waves 6 to 9 feet building to 8 to 12 feet
by midnight. waves occasionally around 15 feet.
.monday...north winds 20 to 25 knots decreasing to 15 to 20 knots
in the late morning and early afternoon...then decreasing to
10 to 15 knots early in the evening veering to the northeast by
midnight. waves 6 to 9 feet subsiding to 3 to 5 feet . waves
occasionally around 12 feet.
$$
(4/5)
Latest Great Lakes Marine Forecast by KMKX
Issued 3/18/2026 8:55 PM US/Central.
Valid through 3/19/2026 4:15 AM US/Central.
fzus63 kmkx 190155
glflm
expires:202603190915;;928290
open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
855 pm cdt wed mar 18 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...
29.8 inch low pressure is positioned over ontario this evening,
resulting in generally southwest winds across the open waters of
lake michigan. said low will advance toward the southern hudson
bay through daybreak as 30.1 inch high pressure builds into
wisconsin from the northern great plains. thus anticipate that the
current southwest winds will trend light and variable by
daybreak, with variable winds continuing through thursday morning.
some light rain is possible over the southern half of the open
waters through sunrise. a new area of 29.7 inch low pressure is
forecast to develop in the canadian great plains thursday
afternoon, allowing winds to turn east-southeasterly across lake
michigan. winds will veer south to southwesterly across the waters
thursday night as the surface low progresses over or just north
of the northern half of lake michigan. some rain or snow is
possible over northern lake michigan during the low's passage,
with wind gusts expected to remain below gale thresholds. winds
will turn west- northwesterly on friday as a cold front moves
across the waters.
winds will become light friday night through saturday morning as
30.0 inch high pressure moves across lake michigan. increasing
southerly winds are expected saturday afternoon as a cold front
approaches from the north. the front is expected to cross lake
michigan saturday night into sunday morning, bringing gusty
northerly winds into monday morning. rain and snow showers will
accompany the passing cold front. widespread gales are not
anticipated at this time, though trends will be monitored over
coming forecasts. winds will decrease monday night, ultimately
turning southerly and increasing once again during the day on
tuesday.
lmz261-362-364-366-563-565-567-868-190915-
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-
855 pm cdt wed mar 18 2026
sheboygan wi to pentwater mi north...
.rest of tonight...southwest winds 10 to 20 kt becoming west
10 to 15 kt. chance of snow through early evening, then chance of
rain and slight chance of very light freezing drizzle overnight.
waves 4 to 6 ft occasionally to 8 ft subsiding to 2 to 4 ft.
.thursday...northwest winds 5 to 10 kt backing to southeast.
waves 1 to 3 ft subsiding to 1 to 2 ft.
.thursday night...southeast winds 5 to 10 kt becoming south 10 to
15 kt late in the evening, then increasing to 10 to 20 kt after
midnight becoming south 10 to 20 kt late. chance of light
freezing rain in the evening, then chance of rain and light
freezing rain likely overnight. waves 1 ft or less building to
1 to 3 ft.
.friday...southwest winds 10 to 20 kt becoming west 10 to 15 kt.
light freezing rain likely in the morning. waves 2 to 4 ft.
.friday night...northwest winds 10 to 15 kt. waves 1 to 2 ft.
.saturday...southwest winds 10 to 15 kt increasing to 10 to
20 kt. waves 2 to 4 ft.
.saturday night...north winds 15 to 25 kt increasing to 30 kt.
chance of rain and snow. waves 4 to 6 ft occasionally to 8 ft
building to 6 to 9 ft occasionally to 12 ft.
.sunday...northeast winds to 30 kt. waves 7 to 10 ft occasionally
to 13 ft.
.monday...northeast winds 10 to 20 kt becoming north. waves 4 to
7 ft occasionally to 9 ft subsiding to 3 to 5 ft.
$$
(5/5)
Latest Great Lakes Marine Forecast by KMKX
Issued 3/18/2026 8:55 PM US/Central.
Valid through 3/19/2026 4:15 AM US/Central.
fzus63 kmkx 190155
glflm
expires:202603190915;;928291
open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
855 pm cdt wed mar 18 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...
29.8 inch low pressure is positioned over ontario this evening,
resulting in generally southwest winds across the open waters of
lake michigan. said low will advance toward the southern hudson
bay through daybreak as 30.1 inch high pressure builds into
wisconsin from the northern great plains. thus anticipate that the
current southwest winds will trend light and variable by
daybreak, with variable winds continuing through thursday morning.
some light rain is possible over the southern half of the open
waters through sunrise. a new area of 29.7 inch low pressure is
forecast to develop in the canadian great plains thursday
afternoon, allowing winds to turn east-southeasterly across lake
michigan. winds will veer south to southwesterly across the waters
thursday night as the surface low progresses over or just north
of the northern half of lake michigan. some rain or snow is
possible over northern lake michigan during the low's passage,
with wind gusts expected to remain below gale thresholds. winds
will turn west- northwesterly on friday as a cold front moves
across the waters.
winds will become light friday night through saturday morning as
30.0 inch high pressure moves across lake michigan. increasing
southerly winds are expected saturday afternoon as a cold front
approaches from the north. the front is expected to cross lake
michigan saturday night into sunday morning, bringing gusty
northerly winds into monday morning. rain and snow showers will
accompany the passing cold front. widespread gales are not
anticipated at this time, though trends will be monitored over
coming forecasts. winds will decrease monday night, ultimately
turning southerly and increasing once again during the day on
tuesday.
lmz080-669-671-673-675-777-779-870-872-874-876-878-190915-
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-
855 pm cdt wed mar 18 2026
sheboygan wi to pentwater mi south...
.rest of tonight...south winds 10 to 15 kt becoming west. chance
of rain overnight. waves 3 to 5 ft subsiding to 2 to 4 ft.
.thursday...northwest winds 5 to 10 kt veering to east. slight
chance of rain in the morning. waves 1 to 2 ft.
.thursday night...east winds 5 to 10 kt becoming southeast late
in the evening, then becoming south 10 to 15 kt after midnight
increasing to 10 to 20 kt late. waves 1 to 3 ft.
.friday...southwest winds 10 to 20 kt becoming northwest 10 to
15 kt. waves 2 to 4 ft.
.friday night...northwest winds 5 to 10 kt becoming north 10 to
15 kt. waves 1 to 3 ft.
.saturday...southwest winds 10 to 15 kt becoming south. waves
2 to 4 ft.
.saturday night...southwest winds 10 to 20 kt veering to
northwest to 30 kt. waves 3 to 5 ft building to 6 to 9 ft
occasionally to 12 ft.
.sunday...north winds to 30 kt. waves 8 to 12 ft occasionally to
16 ft.
.monday...northeast winds 15 to 25 kt becoming north 10 to 20 kt.
waves 7 to 10 ft occasionally to 13 ft subsiding to 4 to 7 ft
occasionally to 9 ft.
$$
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