fzus61 kcle 041950
glfle 
expires:202604050230;;834780

open lake forecast for lake erie
national weather service cleveland oh
350 pm edt sat apr 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 warm front over lake erie this afternoon will lift northeast
before a cold front quickly moves east across the lake tonight. a
trough averaging 30.00 inches will linger north of the lake sunday
and sunday night before low pressure 29.90 inches moves east
across the great lakes monday into tuesday. high pressure 30.60
inches will build across the lake tuesday into wednesday.


lez162>164-050230-
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-
350 pm edt sat apr 4 2026

...severe thunderstorm watch 97 in effect until 9 pm edt this
evening...

.tonight...southwest winds 15 to 20 knots becoming west. showers
with a chance of thunderstorms early, then a chance of showers
with a slight chance of thunderstorms late this evening. some
thunderstorms may be severe with damaging winds early. waves 1 to
3 feet building to 2 to 4 feet. 
.sunday...west winds 15 to 20 knots. waves 2 to 4 feet. 
.sunday night...west winds 15 to 20 knots becoming southwest
10 to 15 knots. waves 1 to 3 feet. 
.monday...west winds 10 to 15 knots increasing to 15 to 20 knots.
a chance of rain showers in the afternoon. waves 1 to 2 feet. 
.monday night...west winds 15 to 25 knots becoming northwest. a
chance of rain showers in the evening. waves 2 to 4 feet building
to 3 to 5 feet. 
.tuesday...northwest winds 15 to 20 knots becoming southeast 5 to
15 knots. waves 2 to 4 feet subsiding to 1 to 3 feet. 
.wednesday...southeast winds 10 to 15 knots becoming south and
increasing to 15 to 25 knots. waves 1 to 3 feet building to 2 to
4 feet. 
.thursday...southwest winds 15 to 25 knots becoming south. a
chance of showers. waves 2 to 4 feet subsiding to 1 to 3 feet. 

winds and waves higher in and near thunderstorms.

$$

fzus63 kdtx 042001
glfsc 
expires:202604050415;;835203

lake st clair forecast
national weather service detroit/pontiac mi
401 pm edt sat apr 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 low pressure system tracks into the straits by this
evening as its warm front lifts northward, maintaining numerous
showers and thunderstorms through early evening. cooler
conditions follow this system sunday, with a series of weak
clipper systems expected to track through monday into tuesday.


lcz460-050415-
lake st clair-
401 pm edt sat apr 4 2026

.tonight...west winds 10 to 15 knots increasing to 15 to 20 knots
early in the morning. rain and a chance of thunderstorms early in
the evening...then a chance of light rain late in the evening. waves
1 to 3 feet.
.sunday...west winds 15 to 20 knots. mostly cloudy. waves 1 to 3
feet.
.sunday night...west winds 15 to 20 knots diminishing to 5 to 10
knots. partly cloudy. a chance of light rain after midnight. waves 2
feet or less.
.monday...west winds 5 to 10 knots increasing to 15 to 20 knots.
partly sunny. a chance of light rain early in the morning. light
rain likely early in the afternoon. waves 2 feet or less.
.monday night...northwest winds 15 to 20 knots. partly cloudy. waves
1 to 3 feet.
.tuesday...north winds 15 to 20 knots diminishing to 5 to 10 knots
in the afternoon...then veering to the southeast in the evening.
partly sunny becoming mostly sunny in the afternoon becoming clear.
waves 2 feet or less.
.wednesday...south winds 15 to 20 knots. partly cloudy. waves 1 to 3
feet.
.thursday...west winds 20 to 25 knots with gusts to 30 knots. partly
cloudy. a chance of light rain. waves 2 to 4 feet. a small craft
advisory may be needed.

$$

fzus63 kdtx 042000
glflh 
expires:202604050400;;835127

open lake forecast for lake huron
national weather service detroit/pontiac mi
400 pm edt sat apr 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 low pressure system tracks into the straits by this
evening as its warm front lifts northward, maintaining numerous
showers and thunderstorms through early evening. cooler
conditions follow this system sunday, with a series of weak
clipper systems expected to track through monday into tuesday.


lhz463-464-050400-
lake huron from harbor beach to port sanilac beyond 5nm off shore-
lake huron from port sanilac to port huron beyond 5nm off shore-
400 pm edt sat apr 4 2026

.tonight...south winds 10 to 15 knots becoming southwest 15 to
20 knots in the late evening and overnight. rain and a chance of
thunderstorms in the evening. waves 2 to 4 feet. 
.sunday...west winds 15 to 20 knots. waves 3 to 5 feet. 
.sunday night...northwest winds 15 to 20 knots becoming west 5 to
10 knots. waves 3 to 5 feet. 
.monday...west winds 5 to 10 knots veering to the northwest early
in the afternoon. rain and snow likely in the afternoon. waves
1 to 3 feet. 
.monday night...northwest winds 15 to 20 knots increasing to
30 knots with gusts to 35 knot gales in the late evening and
overnight. snow likely in the evening. waves 2 to 4 feet building
to 6 to 9 feet in the late evening and overnight. waves
occasionally around 12 feet. 
.tuesday...north winds 20 to 25 knots with gusts to around
30 knots decreasing to 10 to 15 knots late in the morning...then
decreasing to 5 to 10 knots late in the afternoon becoming south
10 to 15 knots late in the evening. waves 8 to 12 feet subsiding
to 1 to 3 feet. waves occasionally around 15 feet. 
.wednesday...south winds 15 to 20 knots increasing to 30 knots. a
chance of. waves 5 to 7 feet building to 8 to 12 feet by
midnight. waves occasionally around 15 feet. 
.thursday...south winds to 30 knots becoming southwest 20 to
25 knots with gusts to around 30 knots in the late morning and
early afternoon...then decreasing to 15 to 20 knots early in the
evening becoming northwest 10 to 15 knots by midnight. a chance
of rain. waves 6 to 9 feet subsiding to 4 to 6 feet by midnight.
waves occasionally around 12 feet. 


$$

fzus63 kmkx 041954
glflm 
expires:202604050315;;834895

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
254 pm cdt sat apr 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...

winds will continue to veer southwest and accelerate this
afternoon as low pressure around 29.6 inches crosses northern 
portions of the lake. as low pressure exits into ontario and 
deepens to 29.3 inches, expect winds to become due westerly and 
gust to around 30 kt through tonight.

winds gradually diminish through sunday as low pressure exits 
into northern quebec. a weak low around 30.0 inches in southern 
quebec will drag a cold front southward across the lake,
bringing northwest winds late sunday night into monday morning.
winds intensify and turn north as strong high pressure around 
30.6 inches moves southeastward across minnesota / wisconsin 
late monday afternoon into monday night. gusts upwards of 30 kt 
expected, but just shy of gale force. 

light and variable winds for the daytime hours of tuesday as 
the aforementioned high pressure weakens and crosses the lake.
as it drifts further east and low pressure tracks into the 
northern plains, a period of southerly gales is possible mid 
week.


lmz261-362-364-366-563-565-567-868-050315-
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-
254 pm cdt sat apr 4 2026

sheboygan wi to pentwater mi north...

.tonight...southwest winds to 30 kt becoming west late. a few 
gusts to gale force possible. waves 4 to 6 ft occasionally to 8 ft
building to 7 to 10 ft occasionally to 13 ft. 
.sunday...northwest winds to 30 kt becoming west 15 to 25 kt.
waves 7 to 10 ft occasionally to 13 ft subsiding to 3 to 5 ft. 
.sunday night...west winds 10 to 20 kt. chance of rain showers in
the evening. waves 2 to 4 ft. 
.monday...northwest winds 10 to 20 kt increasing to 30 kt in the
afternoon. chance of snow showers in the afternoon. waves 3 to
5 ft building to 5 to 8 ft occasionally to 10 ft. 
.monday night...north winds to 30 kt. a few gusts to gale force 
possible. freezing spray in the evening. waves 7 to 10 ft 
occasionally to 13 ft. 
.tuesday...northwest winds 10 to 15 kt backing to southwest.
waves 4 to 6 ft occasionally to 8 ft subsiding to 1 to 3 ft. 
.tuesday night...south winds 10 to 20 kt increasing to 30 kt.
waves 2 to 4 ft building to 5 to 8 ft occasionally to 10 ft. 
.wednesday...south gales to 35 kt. chance of rain and snow
showers. waves 10 to 14 ft occasionally to 18 ft building to
12 to 16 ft occasionally to 21 ft. 
.thursday...west gales to 35 kt becoming northwest 15 to 25 kt.
chance of rain showers. waves 10 to 14 ft occasionally to 18 ft
subsiding to 5 to 8 ft occasionally to 10 ft.  

$$

fzus63 kmkx 041954
glflm 
expires:202604050315;;834896

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
254 pm cdt sat apr 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...

winds will continue to veer southwest and accelerate this
afternoon as low pressure around 29.6 inches crosses northern 
portions of the lake. as low pressure exits into ontario and 
deepens to 29.3 inches, expect winds to become due westerly and 
gust to around 30 kt through tonight.

winds gradually diminish through sunday as low pressure exits 
into northern quebec. a weak low around 30.0 inches in southern 
quebec will drag a cold front southward across the lake,
bringing northwest winds late sunday night into monday morning.
winds intensify and turn north as strong high pressure around 
30.6 inches moves southeastward across minnesota / wisconsin 
late monday afternoon into monday night. gusts upwards of 30 kt 
expected, but just shy of gale force. 

light and variable winds for the daytime hours of tuesday as 
the aforementioned high pressure weakens and crosses the lake.
as it drifts further east and low pressure tracks into the 
northern plains, a period of southerly gales is possible mid 
week.


lmz080-669-671-673-675-777-779-870-872-874-876-878-050315-
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-
254 pm cdt sat apr 4 2026

sheboygan wi to pentwater mi south...

.tonight...west winds to 30 kt. waves 4 to 6 ft occasionally to
8 ft building to 7 to 10 ft occasionally to 13 ft. 
.sunday...northwest winds to 30 kt becoming west 10 to 20 kt.
waves 8 to 11 ft occasionally to 14 ft subsiding to 4 to 7 ft
occasionally to 9 ft. 
.sunday night...southwest winds 10 to 15 kt becoming northwest
10 to 20 kt. chance of rain showers. waves 3 to 5 ft subsiding to
2 to 4 ft. 
.monday...northwest winds 10 to 20 kt increasing to 30 kt in the
afternoon. waves 4 to 6 ft occasionally to 8 ft building to 6 to
9 ft occasionally to 12 ft. 
.monday night...north winds to 30 kt. waves 8 to 11 ft
occasionally to 14 ft. 
.tuesday...north winds 10 to 20 kt becoming northeast 5 to 10 kt
in the afternoon. waves 5 to 8 ft occasionally to 10 ft subsiding
to 3 to 5 ft. 
.tuesday night...southeast winds 10 to 20 kt increasing to 30 kt.
waves 2 to 4 ft building to 5 to 8 ft occasionally to 10 ft. 
.wednesday...south gales to 35 kt. waves 10 to 14 ft occasionally
to 18 ft. 
.thursday...southwest winds to 30 kt becoming northwest 10 to
20 kt. chance of rain showers. waves 8 to 12 ft occasionally to
16 ft subsiding to 5 to 8 ft occasionally to 10 ft.  

$$