fzus61 kcle 041318
glfle 
expires:202605042015;;000520

open lake forecast for lake erie
national weather service cleveland oh
918 am edt mon may 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 trough of 29.50 inches will settle south to the central great
lakes today, then continue south across lake erie as a cold front
on tuesday afternoon. a wave of low pressure, 29.70 inches will
track northeast along this front through the ohio valley on
tuesday night. high pressure of 29.90 inches builds from the
northern plains to the ohio valley wednesday through thursday.  
low pressure of 29.70 inches moves east through the central great 
lakes on friday.


lez162>166-042015-
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-
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-
918 am edt mon may 4 2026

.this afternoon...southwest winds 15 to 20 knots. waves 3 to
5 feet subsiding to 1 to 3 feet. 
.tonight...southwest winds 15 to 20 knots. showers likely with a
chance of thunderstorms in the evening, then a chance of showers
with a slight chance of thunderstorms after midnight. a chance of
showers late. waves 1 to 3 feet building to 3 to 5 feet. 
.tuesday...southwest winds 15 to 20 knots becoming northwest
10 to 15 knots. a chance of showers in the morning, then showers
in the afternoon. waves 3 to 5 feet subsiding to 1 to 3 feet. 
.tuesday night...north winds 5 to 15 knots. showers. waves 1 to
3 feet. 
.wednesday...north winds 5 to 15 knots becoming northwest. a
chance of showers during the day. waves 2 feet or less. 
.thursday...north winds 5 to 15 knots becoming west. a chance of
showers during the day. waves 2 feet or less. 
.friday...west winds 5 to 15 knots. a chance of showers friday
night. waves 2 feet or less. 

winds and waves higher in and near thunderstorms.

$$

fzus63 kdtx 041338
glfsc 
expires:202605042145;;000831

lake st clair forecast
national weather service detroit/pontiac mi
938 am edt mon may 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...southwest winds continue through today with localized
elevated winds found within the saginaw bay. a cold front moves
through tonight into tomorrow morning which veers wind direction
from southwest to northwest.


lcz460-042145-
lake st clair-
938 am edt mon may 4 2026

.rest of today...southwest winds 15 to 20 knots. mostly sunny. waves
1 to 3 feet.
.tonight...southwest winds 15 to 20 knots. partly cloudy becoming
mostly cloudy. a chance of light showers. waves 1 to 3 feet.
.tuesday...west winds 10 to 15 knots becoming northwest 5 to 10
knots in the late morning and afternoon. mostly cloudy. a chance of
light showers until late afternoon...then light showers likely early
in the afternoon. waves 2 feet or less.
.tuesday night...west winds 5 to 10 knots veering to the north after
midnight. cloudy. light showers likely early in the evening...then a
chance of light showers in the late evening and overnight. waves 2
feet or less.
.wednesday...north winds 5 to 10 knots. partly sunny becoming mostly
cloudy. waves 2 feet or less.
.thursday...west winds 5 to 10 knots. partly cloudy. a chance of
showers. waves 2 feet or less.
.friday...west winds 10 to 15 knots. partly cloudy. a chance of
showers. waves 2 feet or less.

$$

fzus63 kdtx 041338
glflh 
expires:202605042145;;000864

open lake forecast for lake huron
national weather service detroit/pontiac mi
938 am edt mon may 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...southwest winds continue through today with localized
elevated winds found within the saginaw bay. a cold front moves
through tonight into tomorrow morning which veers wind direction
from southwest to northwest.


lhz462>464-042145-
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-
938 am edt mon may 4 2026

.rest of today...south winds 10 to 15 knots increasing to 15 to
20 knots late in the afternoon. waves 1 to 3 feet building to
3 to 5 feet in the afternoon. 
.tonight...south winds 15 to 20 knots becoming southwest 10 to
15 knots after midnight. a chance of showers after midnight.
waves 2 to 4 feet. 
.tuesday...north winds 5 to 10 knots backing to the northwest in
the late morning and early afternoon...then backing to the south
early in the afternoon. waves 1 to 3 feet. 
.tuesday night...east winds 5 to 10 knots backing to the
northeast in the late evening and overnight. waves 2 feet or
less. 
.wednesday...north winds 5 to 10 knots becoming light and
variable. waves 2 feet or less. 
.thursday...north winds 5 to 10 knots early in the morning
becoming light and variable...then becoming west 5 to 10 knots by
midnight. waves 2 feet or less. 
.friday...west winds 5 to 10 knots backing to the southeast early
in the evening...then backing to the southeast 5 to 10 knots by
midnight. waves 2 feet or less. 


$$

fzus63 kmkx 041353
glflm 
expires:202605042115;;001335

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

no major changes to the going forecast this morning.

winds return to a southerly direction and become gusty again 
around dawn on this morning. winds will further increase this 
morning ahead of another cold front in association with low 
pressure of 29.0 inches moving across ontario. a short 6 hour 
period of gales is possible over the northern third of lake 
michigan between 10am and 4pm cdt. less certainty in gales given
the colder waters of the lake potentially inhibiting higher gusts
from mixing down. winds then ease through the afternoon from 
north to south over the lake as the cold front moves south. winds 
behind the front will become northwesterly.

the pressure gradient will then ease over the lake tuesday
through thursday, with light and persistent west to northwest 
winds occuring. light and variable winds may briefly occur at times 
as various weak surface ridges move across the lake.


lmz366-565-567-868-042115-
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-
853 am cdt mon may 4 2026

sturgeon bay wi to point betsie mi south to sheboygan wi to
pentwater mi...

.rest of today...south winds 10 to 20 kt becoming southwest to
30 kt. chance of rain showers and slight chance of thunderstorms
this afternoon. waves 2 to 4 ft building to 4 to 7 ft
occasionally to 9 ft. 
.tonight...west winds 10 to 20 kt becoming northwest 10 to 15 kt.
slight chance of rain showers and thunderstorms in the evening,
then chance of rain showers overnight. waves 4 to 7 ft
occasionally to 9 ft subsiding to 2 to 4 ft. 
.tuesday...northwest winds 10 to 15 kt backing to southwest.
waves 1 to 3 ft. 
.tuesday night...west winds 5 to 10 kt veering to north 10 to
15 kt. waves 1 to 2 ft. 
.wednesday...northwest winds 10 to 15 kt backing to southwest.
waves 1 to 2 ft. 
.wednesday night...southwest winds 5 to 10 kt becoming west.
waves 1 ft or less. 
.thursday...west winds 5 to 10 kt becoming southwest 10 to 15 kt.
waves 1 ft or less. 
.friday...northwest winds 5 to 10 kt backing to south. waves 1 to
2 ft.  

$$

fzus63 kmkx 041353
glflm 
expires:202605042115;;001336

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

no major changes to the going forecast this morning.

winds return to a southerly direction and become gusty again 
around dawn on this morning. winds will further increase this 
morning ahead of another cold front in association with low 
pressure of 29.0 inches moving across ontario. a short 6 hour 
period of gales is possible over the northern third of lake 
michigan between 10am and 4pm cdt. less certainty in gales given
the colder waters of the lake potentially inhibiting higher gusts
from mixing down. winds then ease through the afternoon from 
north to south over the lake as the cold front moves south. winds 
behind the front will become northwesterly.

the pressure gradient will then ease over the lake tuesday
through thursday, with light and persistent west to northwest 
winds occuring. light and variable winds may briefly occur at times 
as various weak surface ridges move across the lake.


lmz080-669-671-673-675-777-779-870-872-874-876-878-042115-
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-
853 am cdt mon may 4 2026

sheboygan wi to pentwater mi south...

.rest of today...southwest winds 10 to 20 kt becoming south to
30 kt, then diminishing to 15 to 25 kt late. waves 2 to 4 ft
building to 4 to 7 ft occasionally to 9 ft. 
.tonight...southwest winds 10 to 20 kt veering to northwest 10 to
15 kt. chance of rain showers and slight chance of thunderstorms
in the evening, then chance of rain showers overnight. waves 4 to
6 ft occasionally to 8 ft subsiding to 2 to 4 ft. 
.tuesday...northwest winds 10 to 15 kt veering to east. waves
1 to 3 ft. 
.tuesday night...southwest winds 5 to 10 kt becoming northwest
10 to 15 kt. waves 1 to 2 ft. 
.wednesday...northwest winds 10 to 15 kt becoming north. waves
1 to 2 ft. 
.wednesday night...south winds 5 to 10 kt becoming west. waves
1 to 2 ft. 
.thursday...west winds 10 to 15 kt becoming southwest. waves 1 to
2 ft. 
.friday...west winds 10 to 15 kt becoming north. waves 1 to 2 ft.
 

$$