fzus61 kcle 210751
glfle 
expires:202605211415;;389793

open lake forecast for lake erie
national weather service cleveland oh
351 am edt thu may 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 30.40 inches moves across the great lakes today 
before shifting into new england on friday. low pressure 30.00 
inches will lift northeast towards lake erie on friday night and
saturday, lifting a warm front onto the lake on saturday. a cold 
front will cross lake erie on sunday before high pressure 30.20 
inches builds overhead on monday.


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-
351 am edt thu may 21 2026

.today...northeast winds 15 to 25 knots becoming east. waves 2 to
4 feet building to 4 to 7 feet. waves occasionally around 9 feet.
.tonight...east winds 15 to 25 knots. waves 4 to 7 feet subsiding
to 3 to 6 feet. waves occasionally around 9 feet. 
.friday...east winds 20 to 25 knots. a chance of showers in the
afternoon. waves 3 to 6 feet building to 4 to 7 feet. waves
occasionally around 9 feet. 
.friday night...east winds 20 to 25 knots. showers likely in the
evening, then showers overnight. waves 4 to 7 feet subsiding to
3 to 6 feet. waves occasionally around 9 feet. 
.saturday...southeast winds 15 to 25 knots becoming west and
diminishing to 5 to 15 knots. showers during the day. waves 3 to
5 feet subsiding to 2 feet or less. 
.sunday...southwest winds 5 to 10 knots becoming northwest. a
chance of showers and thunderstorms during the day, then a chance
of showers sunday night. waves 1 foot or less. 
.monday...north winds 10 knots or less becoming east. waves
1 foot or less. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 210751
glfle 
expires:202605211415;;389794

open lake forecast for lake erie
national weather service cleveland oh
351 am edt thu may 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 30.40 inches moves across the great lakes today 
before shifting into new england on friday. low pressure 30.00 
inches will lift northeast towards lake erie on friday night and
saturday, lifting a warm front onto the lake on saturday. a cold 
front will cross lake erie on sunday before high pressure 30.20 
inches builds overhead on monday.


lez164>168-211415-
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-geneva-on-
the-lake to conneaut oh beyond 5 nm off shoreline to us-
canadian border-
351 am edt thu may 21 2026

.today...northeast winds 15 to 25 knots. waves 2 to 4 feet
building to 5 to 8 feet. waves occasionally around 10 feet. 
.tonight...northeast winds 15 to 25 knots becoming east. waves
5 to 8 feet. waves occasionally around 10 feet. 
.friday...east winds 15 to 25 knots. waves 5 to 8 feet. waves
occasionally around 10 feet. 
.friday night...east winds 15 to 25 knots. showers likely in the
evening, then showers overnight. waves 5 to 8 feet subsiding to
3 to 6 feet. waves occasionally around 10 feet. 
.saturday...southeast winds 15 to 25 knots becoming south.
showers during the day, then showers likely saturday night. waves
3 to 6 feet subsiding to 2 to 4 feet. 
.sunday...southwest winds 10 knots or less becoming south. a
chance of showers. waves 2 feet or less. 
.monday...northwest winds 10 knots or less becoming east. waves
1 foot or less. 

winds and waves higher in and near thunderstorms.

$$

fzus63 kdtx 210754
glfsc 
expires:202605211600;;389903

lake st clair forecast
national weather service detroit/pontiac mi
354 am edt thu may 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, 30.40 inches, will slowly track
eastward across the northern great lakes through friday morning.
northeast wind veers east then strengthens late friday into
saturday as low pressure tracks in from the mid mississippi
valley.


lcz460-211600-
lake st clair-
354 am edt thu may 21 2026

.today...northeast winds 10 to 15 knots. mostly sunny. waves 2 feet
or less.
.tonight...northeast winds 15 to 20 knots diminishing to 10 to 15
knots by midnight...then becoming east 15 to 20 knots early in the
morning. mostly clear. waves 1 to 3 feet.
.friday...east winds 15 to 20 knots. partly sunny. waves 2 to 4
feet.
.friday night...east winds 15 to 20 knots increasing to 20 to 25
knots with gusts to 30 knots after midnight. a chance of light
showers ...then showers after midnight. waves 2 to 4 feet. a small
craft advisory may be needed.
.saturday...east winds to 30 knots becoming southeast 15 to 20 
knots. showers...then a chance of light showers in the evening. 
waves 2 to 4 feet subsiding to 1 to 3 feet in the evening.
.sunday...south winds 10 to 15 knots. mostly cloudy with a chance of
showers. waves 2 feet or less.
.monday...east winds 5 to 10 knots. partly cloudy. a chance of
showers. waves 2 feet or less.

$$

fzus63 kdtx 210754
glflh 
expires:202605211600;;389899

open lake forecast for lake huron
national weather service detroit/pontiac mi
354 am edt thu may 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, 30.40 inches, will slowly track
eastward across the northern great lakes through friday morning.
northeast wind veers east then strengthens late friday into
saturday as low pressure tracks in from the mid mississippi
valley.


lhz462>464-211600-
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-
354 am edt thu may 21 2026

.today...northeast winds 10 to 15 knots. waves 2 to 4 feet. 
.tonight...northeast winds 10 to 15 knots veering to the east
early in the morning. waves 2 to 4 feet subsiding to 1 to 3 feet
early in the morning. 
.friday...northeast winds 10 to 15 knots. waves 2 to 4 feet. 
.friday night...east winds 10 to 15 knots increasing to 15 to
20 knots after midnight. showers likely after midnight. waves
4 to 6 feet. 
.saturday...east winds 20 to 25 knots with gusts to 30 knots  
becoming southeast 10 to 15 knots late in the evening. showers. a 
chance of showers late in the afternoon. waves 5 to 7 feet. waves 
occasionally around 10 feet. 
.sunday...southwest winds 5 to 10 knots backing to the southeast
. a chance of showers. waves 2 feet or less. 
.monday...light and variable winds becoming north 5 to 10 knots
early in the evening...then becoming light and variable by
midnight. waves 2 feet or less. 


$$

fzus63 kmkx 210835
glflm 
expires:202605211515;;391699

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
335 am cdt thu may 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...

no major changes to the going synopsis.

high pressure of 30.4 inches centered over lake superior will 
will gradually shift eastward through the end of the week. 
persistent east to northeast winds of 10 to 20 knots are expected 
through friday, with winds becoming northerly on saturday as low 
pressure of 29.8 inches lifts northeast into southern michigan. 
winds could increase a bit friday night into saturday, depending 
on the exact track and strength of the low, though winds are 
likely to stay below gale force. southerly winds are then expected
to develop early next week.


lmz261-362-364-366-563-565-567-868-211515-
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-
335 am cdt thu may 21 2026

sheboygan wi to pentwater mi north...

.today...northeast winds 10 to 20 kt. waves 1 to 3 ft. 
.tonight...northeast winds 10 to 20 kt becoming east 10 to 15 kt.
waves 1 to 3 ft. 
.friday...east winds 10 to 20 kt becoming northeast 15 to 25 kt.
waves 1 to 3 ft building to 3 to 5 ft. 
.friday night...east winds 15 to 25 kt increasing to 30 kt.
showers likely overnight. waves 4 to 6 ft occasionally to 8 ft. 
.saturday...east winds to 30 kt becoming northeast. showers
likely in the morning, then chance of showers in the afternoon.
waves 4 to 7 ft occasionally to 9 ft. 
.saturday night...northeast winds to 30 kt veering to south 10 to
15 kt. waves 4 to 6 ft occasionally to 8 ft subsiding to 1 to
3 ft. 
.sunday...south winds 5 to 10 kt becoming southwest 10 to 15 kt.
waves 1 to 2 ft. 
.monday...southwest winds 5 to 10 kt increasing to 10 to 15 kt.
waves 1 to 2 ft.  

$$

fzus63 kmkx 210835
glflm 
expires:202605211515;;391700

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
335 am cdt thu may 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...

no major changes to the going synopsis.

high pressure of 30.4 inches centered over lake superior will 
will gradually shift eastward through the end of the week. 
persistent east to northeast winds of 10 to 20 knots are expected 
through friday, with winds becoming northerly on saturday as low 
pressure of 29.8 inches lifts northeast into southern michigan. 
winds could increase a bit friday night into saturday, depending 
on the exact track and strength of the low, though winds are 
likely to stay below gale force. southerly winds are then expected
to develop early next week.


lmz080-669-671-673-675-777-779-870-872-874-876-878-211515-
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-
335 am cdt thu may 21 2026

sheboygan wi to pentwater mi south...

.today...northeast winds 10 to 20 kt becoming north 15 to 25 kt.
waves 3 to 5 ft subsiding to 2 to 4 ft. 
.tonight...northeast winds 15 to 25 kt becoming east 10 to 20 kt.
waves 3 to 5 ft. 
.friday...east winds 10 to 20 kt becoming northeast 15 to 25 kt.
waves 3 to 5 ft. 
.friday night...east winds 15 to 25 kt. chance of showers in the
evening, then showers overnight. waves 4 to 6 ft occasionally to
8 ft. 
.saturday...northeast winds 15 to 25 kt becoming north 10 to
20 kt. chance of showers. waves 4 to 6 ft occasionally to 8 ft
subsiding to 3 to 5 ft. 
.saturday night...north winds 10 to 15 kt veering to south. waves
1 to 3 ft subsiding to 1 to 2 ft. 
.sunday...south winds 5 to 10 kt. waves 1 to 2 ft. 
.monday...northeast winds 5 to 10 kt increasing to 10 to 15 kt.
waves 1 to 2 ft.  

$$