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(1/6)
Latest Great Lakes Marine Forecast by KCLE
Issued 3/21/2026 3:42 AM America/New_York.
Valid through 3/21/2026 10:15 AM America/New_York.
fzus61 kcle 210742
glfle
expires:202603211415;;047316
open lake forecast for lake erie
national weather service cleveland oh
342 am edt sat mar 21 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 30.00 inches today gives way to a warm front
tonight, followed by a strong cold front sunday. high pressure
30.40 inches builds in after sunday for monday night and tuesday.
another warm front arrives midweek.
lez162-163-211415-
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-
342 am edt sat mar 21 2026
.today...northeast winds 5 to 10 knots becoming southeast. patchy
dense fog this morning. waves 1 foot or less.
.tonight...southeast winds 5 to 15 knots becoming southwest.
waves 2 feet or less.
.sunday...southwest winds 10 to 15 knots becoming north. a chance
of showers in the morning, then showers likely in the afternoon.
waves 2 feet or less.
.sunday night...north winds 15 to 20 knots. rain showers likely
in the evening, then a chance of rain and snow showers overnight.
waves 1 to 3 feet building to 2 to 4 feet.
.monday...north winds 15 to 20 knots becoming east and
diminishing to 5 to 10 knots. waves 1 to 3 feet subsiding to
1 foot or less.
.tuesday...south winds 5 to 15 knots becoming southeast. waves
1 to 3 feet.
.wednesday...northeast winds 15 to 20 knots becoming south. waves
2 to 4 feet subsiding to 1 to 3 feet.
$$
(2/6)
Latest Great Lakes Marine Forecast by KCLE
Issued 3/21/2026 3:42 AM America/New_York.
Valid through 3/21/2026 10:15 AM America/New_York.
fzus61 kcle 210742
glfle
expires:202603211415;;047317
open lake forecast for lake erie
national weather service cleveland oh
342 am edt sat mar 21 2026
for waters beyond five nautical miles of shore on lake erie
waves are the significant wave height - the average of the highest
1/3 of the wave spectrum. occasional wave height is the average of
the highest 1/10 of the wave spectrum.
.synopsis...
high pressure 30.00 inches today gives way to a warm front
tonight, followed by a strong cold front sunday. high pressure
30.40 inches builds in after sunday for monday night and tuesday.
another warm front arrives midweek.
lez164>167-211415-
the islands to vermilion oh beyond 5 nm off shoreline to us-
canadian border-
vermilion to avon point oh beyond 5 nm off shoreline to us-
canadian border-
avon point to willowick oh beyond 5 nm off shoreline to us-
canadian border-willowick to geneva-on-the-
lake oh beyond 5nm off shoreline to us-canadian border-
342 am edt sat mar 21 2026
.today...northeast winds 10 knots or less becoming east. patchy
dense fog this morning. waves 2 feet or less.
.tonight...east winds 5 to 15 knots becoming southwest. waves
1 to 3 feet.
.sunday...southwest winds 10 to 15 knots becoming north. a chance
of rain showers in the morning, then rain showers likely in the
afternoon. waves 1 to 3 feet.
.sunday night...north winds 15 to 20 knots. rain showers likely
in the evening, then a chance of rain and snow showers overnight.
waves 2 to 4 feet.
.monday...north winds 15 to 20 knots becoming northeast 5 to
15 knots. waves 2 to 4 feet subsiding to 1 to 2 feet.
.tuesday...southeast winds 5 to 10 knots becoming southwest and
increasing to 15 to 20 knots. waves 2 feet or less building to
3 to 5 feet.
.wednesday...northeast winds 15 to 20 knots becoming south. waves
3 to 5 feet subsiding to 1 to 3 feet.
$$
(3/6)
Latest Great Lakes Marine Forecast by KDTX
Issued 3/21/2026 3:37 AM America/New_York.
Valid through 3/21/2026 11:45 AM America/New_York.
fzus63 kdtx 210737
glfsc
expires:202603211545;;047126
lake st clair forecast
national weather service detroit/pontiac mi
337 am edt sat mar 21 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...high pressure, 30.10 inches, briefly fills in over the
great lakes this morning. a clipper tracks across the region
tonight, dragging a strong cold front through on sunday. breezy
north to northeast winds will develop behind this front. stronger
high pressure follows on monday with another cold front expected
tuesday.
lcz460-211545-
lake st clair-
337 am edt sat mar 21 2026
.today...light and variable winds becoming southeast 5 to 10 knots
in the afternoon. mostly cloudy. waves 2 feet or less.
.tonight...southeast winds 5 to 10 knots becoming south 10 to 15
knots after midnight...then becoming southwest 5 to 10 knots early
in the morning. partly cloudy becoming mostly cloudy by midnight
becoming partly cloudy. waves 2 feet or less.
.sunday...northwest winds 5 to 10 knots becoming north 15 to 20
knots early in the afternoon. mostly cloudy. light showers likely.
waves 2 feet or less.
.sunday night...north winds 15 to 20 knots diminishing to 10 to 15
knots after midnight. mostly cloudy. light showers likely early in
the evening. waves 1 to 3 feet.
.monday...north winds 10 to 15 knots diminishing to 5 to 10 knots in
the evening. partly cloudy then clearing. waves 2 feet or less.
.tuesday...southwest winds 10 to 15 knots. partly cloudy. waves 2
feet or less.
.wednesday...southeast winds 10 to 15 knots. partly cloudy. waves 2
feet or less.
$$
(4/6)
Latest Great Lakes Marine Forecast by KDTX
Issued 3/21/2026 3:36 AM America/New_York.
Valid through 3/21/2026 11:45 AM America/New_York.
fzus63 kdtx 210736
glflh
expires:202603211545;;047065
open lake forecast for lake huron
national weather service detroit/pontiac mi
336 am edt sat mar 21 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...high pressure, 30.10 inches, briefly fills in over the
great lakes this morning. a clipper tracks across the region
tonight, dragging a strong cold front through on sunday. breezy
north to northeast winds will develop behind this front. stronger
high pressure follows on monday with another cold front expected
tuesday.
lhz363-462>464-211545-
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-
336 am edt sat mar 21 2026
.today...north winds 5 to 15 knots veering to the southeast in
the afternoon. waves 2 feet or less.
.tonight...southeast winds 10 to 15 knots. a chance of showers
after midnight. waves 1 to 3 feet.
.sunday...southwest winds 10 to 15 knots becoming 15 to 20 knots
early in the afternoon. a chance of rain and snow showers in the
morning...then a chance of showers in the afternoon. waves 2 to
4 feet building to 4 to 6 feet in the late morning and afternoon.
waves occasionally around 8 feet.
.sunday night...north winds 15 to 20 knots. waves 5 to 7 feet.
waves occasionally around 10 feet.
.monday...north winds 10 to 15 knots decreasing to 5 to 10 knots
late in the afternoon. waves 3 to 5 feet subsiding to 1 to 3 feet
late in the evening.
.tuesday...south winds 10 to 15 knots increasing to 15 to
20 knots in the late morning and early afternoon...then
decreasing to 10 to 15 knots early in the evening becoming west
15 to 20 knots by midnight. waves 3 to 5 feet building to 5 to
7 feet by midnight. waves occasionally around 10 feet.
.wednesday...north winds 20 to 25 knots decreasing to 15 to
20 knots in the late morning and early afternoon...then becoming
northeast 10 to 15 knots early in the evening veering to the east
by midnight. waves 6 to 9 feet subsiding to 3 to 5 feet by
midnight. waves occasionally around 12 feet.
$$
(5/6)
Latest Great Lakes Marine Forecast by KMKX
Issued 3/21/2026 3:03 AM US/Central.
Valid through 3/21/2026 10:30 AM US/Central.
fzus63 kmkx 210803
glflm
expires:202603211530;;047882
open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
303 am cdt sat mar 21 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...
light winds early this morning will continue as high pressure
around 30.3 inches moves from james bay to michigan to the mid
atlantic. as this high moves east of the lake today, winds will
shift to southeast to south.
meanwhile, low pressure around 29.5 inches will develop in
eastern wyoming this morning and move east southeast toward
central illinois/indiana by sunday. as this low passes south of
the lake it is expected to deepen to around 29.4 inches. winds
will shift to the north and northeast and become gusty later
tonight into sunday morning. a few northerly gales are possible
sunday, mainly over southern portions of the lake. high pressure
around 30.4 inches should then bring decreasing winds for monday.
lmz261-362-364-366-563-565-567-868-211530-
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-
303 am cdt sat mar 21 2026
sheboygan wi to pentwater mi north...
.today...southeast winds 5 to 10 kt becoming south 10 to 20 kt.
slight chance of snow this morning, then slight chance of rain
this afternoon. patchy fog this afternoon. waves 1 ft or less
building to 3 to 5 ft.
.tonight...south winds 10 to 20 kt backing to north. chance of
rain overnight. waves 3 to 5 ft.
.sunday...north winds 10 to 20 kt increasing to 30 kt. waves 4 to
6 ft occasionally to 8 ft building to 7 to 10 ft occasionally to
13 ft.
.sunday night...north winds to 30 kt diminishing to 10 to 20 kt
overnight. waves 7 to 10 ft occasionally to 13 ft subsiding to
4 to 7 ft occasionally to 9 ft.
.monday...north winds 10 to 20 kt becoming northwest 10 to 15 kt.
waves 3 to 5 ft subsiding to 1 to 3 ft.
.monday night...south winds 10 to 15 kt increasing to 15 to
25 kt. waves 1 to 2 ft building to 2 to 4 ft.
.tuesday...southwest winds to 30 kt diminishing to 15 to 25 kt.
waves 4 to 6 ft occasionally to 8 ft.
.wednesday...east winds 15 to 25 kt diminishing to 10 to 20 kt.
waves 5 to 8 ft occasionally to 10 ft subsiding to 4 to 7 ft
occasionally to 9 ft.
$$
(6/6)
Latest Great Lakes Marine Forecast by KMKX
Issued 3/21/2026 3:03 AM US/Central.
Valid through 3/21/2026 10:30 AM US/Central.
fzus63 kmkx 210803
glflm
expires:202603211530;;047883
open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
303 am cdt sat mar 21 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...
light winds early this morning will continue as high pressure
around 30.3 inches moves from james bay to michigan to the mid
atlantic. as this high moves east of the lake today, winds will
shift to southeast to south.
meanwhile, low pressure around 29.5 inches will develop in
eastern wyoming this morning and move east southeast toward
central illinois/indiana by sunday. as this low passes south of
the lake it is expected to deepen to around 29.4 inches. winds
will shift to the north and northeast and become gusty later
tonight into sunday morning. a few northerly gales are possible
sunday, mainly over southern portions of the lake. high pressure
around 30.4 inches should then bring decreasing winds for monday.
lmz080-669-671-673-675-777-779-870-872-874-876-878-211530-
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-
303 am cdt sat mar 21 2026
sheboygan wi to pentwater mi south...
.today...southeast winds 5 to 10 kt increasing to 10 to 15 kt
late this morning, then becoming south 10 to 20 kt this
afternoon. waves 1 to 3 ft building to 3 to 5 ft.
.tonight...south winds 10 to 20 kt veering to northwest. waves
3 to 5 ft.
.sunday...north winds 10 to 20 kt increasing to 30 kt. chance of
rain. waves 3 to 5 ft building to 8 to 12 ft occasionally to
16 ft.
.sunday night...north winds to 30 kt diminishing to 15 to 25 kt.
waves 8 to 12 ft occasionally to 16 ft subsiding to 7 to 10 ft
occasionally to 13 ft.
.monday...north winds 10 to 20 kt diminishing to 10 to 15 kt.
waves 4 to 7 ft occasionally to 9 ft subsiding to 3 to 5 ft.
.monday night...east winds 10 to 15 kt becoming southeast 10 to
20 kt. waves 2 to 4 ft.
.tuesday...south winds 15 to 25 kt. waves 3 to 5 ft.
.wednesday...east winds 15 to 25 kt becoming southeast 10 to
20 kt. waves 5 to 8 ft occasionally to 10 ft subsiding to 4 to
7 ft occasionally to 9 ft.
$$
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