fzus61 kcle 171948
glfle 
expires:202604180230;;539386

open lake forecast for lake erie
national weather service cleveland oh
348 pm edt fri apr 17 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 will lift north across lake erie saturday morning
before low pressure 29.40 inches drags a cold front east through
the great lakes and ohio valley saturday evening. a trough
averaging 29.90 inches builds across the lake on sunday before
high pressure 30.40 inches moves overhead sunday night into
monday. 


lez162>164-180230-
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-
348 pm edt fri apr 17 2026

.tonight...east winds 10 to 15 knots becoming south 15 to
20 knots. patchy fog late this evening. a chance of showers and
thunderstorms late. waves 1 to 3 feet. 
.saturday...south winds 15 to 20 knots becoming west. showers
with a chance of thunderstorms in the morning, then showers
likely with a slight chance of thunderstorms early in the
afternoon. a chance of showers with a slight chance of
thunderstorms late. waves 1 to 3 feet building to 2 to 4 feet. 
.saturday night...west winds 15 to 20 knots. waves 2 to 4 feet
subsiding to 1 to 3 feet. 
.sunday...west winds 15 to 20 knots. waves 1 to 3 feet. 
.sunday night...northwest winds 15 to 20 knots becoming north
10 to 15 knots. waves 2 to 4 feet subsiding to 1 to 3 feet. 
.monday...northwest winds 5 to 15 knots becoming south 15 to
20 knots. waves 1 to 3 feet. 
.tuesday...south winds 15 to 20 knots becoming northwest 10 to
15 knots. waves 1 to 3 feet. 
.wednesday...northeast winds 5 to 15 knots becoming east. waves
2 feet or less. 

winds and waves higher in and near thunderstorms.

$$

fzus63 kdtx 171946
glfsc 
expires:202604180400;;539322

lake st clair forecast
national weather service detroit/pontiac mi
346 pm edt fri apr 17 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...some areas of fog this evening into early tonight
mainly over the northern half of lake huron. low pressure, 29.30
inches, lifting into northern ontario drags a respectable cold
front through the central great lakes saturday supporting another
round of showers and storms. colder air filters into the region
the rest of the weekend maintaining moderate to strong
northwesterly winds.


lcz460-180400-
lake st clair-
346 pm edt fri apr 17 2026

.tonight...southeast winds 10 to 15 knots becoming south 15 to 20
knots early in the morning. partly cloudy ...then mostly cloudy with
light showers likely and a chance of thunderstorms early in the
morning. waves 1 to 3 feet.
.saturday...south winds 15 to 20 knots veering to the west in the
afternoon. light showers and a chance of thunderstorms in the
morning...then light showers likely in the afternoon. waves 1 to 3
feet.
.saturday night...west winds 10 to 15 knots. partly cloudy. waves 1
to 3 feet.
.sunday...west winds 10 to 15 knots increasing to 15 to 20 knots in
the late morning and afternoon. partly sunny. a chance of light
showers early in the afternoon. waves 1 to 3 feet.
.sunday night...northwest winds 15 to 20 knots diminishing to 5 to
10 knots. partly cloudy. a chance of light showers early in the
evening. waves 2 feet or less.
.monday...north winds 5 to 10 knots veering to the southeast in the
evening. mostly clear. waves 2 feet or less.
.tuesday...west winds 15 to 20 knots. partly cloudy. waves 1 to 3
feet.
.wednesday...east winds 10 to 15 knots. mostly clear. waves 2 feet
or less.

$$

fzus63 kdtx 171946
glflh 
expires:202604180400;;539319

open lake forecast for lake huron
national weather service detroit/pontiac mi
346 pm edt fri apr 17 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...some areas of fog this evening into early tonight
mainly over the northern half of lake huron. low pressure, 29.30
inches, lifting into northern ontario drags a respectable cold
front through the central great lakes saturday supporting another
round of showers and storms. colder air filters into the region
the rest of the weekend maintaining moderate to strong
northwesterly winds.


lhz462>464-180400-
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-
346 pm edt fri apr 17 2026

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


$$

fzus63 kdtx 171357
glflh 
expires:202604172200;;523603

open lake forecast for lake huron
national weather service detroit/pontiac mi
957 am edt fri apr 17 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...patchy fog lingers through the morning with high 
pressure, 30.00 inches, crossing the region. a powerful cold front
arrives on saturday, bringing another round of showers and storms
in addition to stronger winds for the weekend.


lhz363-462>464-172200-
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-
957 am edt fri apr 17 2026

.rest of today...light and variable winds becoming east 5 to
10 knots in the afternoon. areas of fog late in the morning. 
waves 2 feet or less. 
.tonight...east winds 10 to 15 knots becoming southeast 20 to
25 knots with gusts to around 30 knots. a chance of showers after
midnight. waves 1 to 3 feet building to 6 to 9 feet. waves
occasionally around 12 feet. 
.saturday...south winds 20 to 25 knots with gusts to around
30 knots decreasing to 15 to 20 knots in the late morning and
early afternoon...then veering to the west early in the
afternoon. showers likely in the morning...then a chance of
showers in the afternoon. waves 6 to 9 feet. waves occasionally
around 12 feet. 
.saturday night...west winds 10 to 15 knots increasing to 15 to
20 knots in the late evening and overnight. a chance of showers
in the evening. waves 5 to 7 feet. waves occasionally around
10 feet. 
.sunday...northwest winds 15 to 20 knots. waves 5 to 7 feet
building to 8 to 12 feet late in the afternoon. waves
occasionally around 15 feet. 
.monday...northwest winds 10 to 15 knots decreasing to 5 to
10 knots in the late morning and early afternoon...then veering
to the north early in the evening becoming south 15 to 20 knots
by midnight. waves 4 to 6 feet subsiding to 2 to 4 feet early in
the evening...then building to 4 to 6 feet by midnight. waves
occasionally around 8 feet. 
.tuesday...south winds 20 to 25 knots with gusts to around
30 knots becoming southwest 10 to 15 knots. waves 5 to 7 feet.
waves occasionally around 10 feet. 


$$

fzus63 kmkx 171949
glflm 
expires:202604180315;;539418

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
249 pm cdt fri apr 17 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...

southerly winds will continue to increase as a surface low of 
29.4 inches tracks across lake superior this afternoon and 
evening. winds will become gusty and southeasterly through tonight,
and strong to severe storms will cross the lake as a cold front 
sweeps through the area. winds are expected to remain just below
gale force. dense fog will continue over the lake until the cold 
front clears late tonight. winds then become northwesterly behind 
the cold front saturday morning. breezy northwesterly winds then 
continue saturday through sunday as the low then races northeast 
toward hudson bay. winds ease monday morning as high pressure 
tracks southeast over the upper great lakes.


lmz261-362-364-366-563-565-567-868-180315-
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-
249 pm cdt fri apr 17 2026

sheboygan wi to pentwater mi north...

...dense fog advisory in effect until 4 am cdt saturday...

.tonight...southeast winds to 30 kt. a few gale force gusts up to
35 kt possible. patchy fog. rain showers with a chance of 
thunderstorms. waves 5 to 8 ft occasionally to 10 ft subsiding to 
4 to 7 ft occasionally to 9 ft.
.saturday...northwest winds to 30 kt becoming west 15 to 25 kt.
patchy fog in the morning. chance of rain showers in the morning,
then chance of snow showers and slight chance of rain showers in
the afternoon. waves 4 to 6 ft occasionally to 8 ft subsiding to
3 to 5 ft. 
.saturday night...west winds 15 to 25 kt. waves 4 to 6 ft
occasionally to 8 ft. 
.sunday...northwest winds 15 to 25 kt. waves 3 to 5 ft. 
.sunday night...north winds 15 to 25 kt diminishing to 10 to
20 kt. waves 2 to 4 ft subsiding to 1 to 3 ft. 
.monday...west winds 10 to 15 kt becoming south 10 to 20 kt.
waves 1 to 2 ft building to 2 to 4 ft. 
.monday night...south winds to 30 kt. waves 6 to 9 ft
occasionally to 12 ft. 
.tuesday...southwest winds to 30 kt diminishing to 10 to 20 kt.
waves 6 to 9 ft occasionally to 12 ft. 
.wednesday...east winds 10 to 15 kt becoming northeast. waves
1 to 3 ft.  

$$

fzus63 kmkx 171949
glflm 
expires:202604180315;;539419

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
249 pm cdt fri apr 17 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...

southerly winds will continue to increase as a surface low of 
29.4 inches tracks across lake superior this afternoon and 
evening. winds will become gusty and southeasterly through tonight,
and strong to severe storms will cross the lake as a cold front 
sweeps through the area. winds are expected to remain just below
gale force. dense fog will continue over the lake until the cold 
front clears late tonight. winds then become northwesterly behind 
the cold front saturday morning. breezy northwesterly winds then 
continue saturday through sunday as the low then races northeast 
toward hudson bay. winds ease monday morning as high pressure 
tracks southeast over the upper great lakes.


lmz080-669-671-673-675-777-779-870-872-874-876-878-180315-
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-
249 pm cdt fri apr 17 2026

sheboygan wi to pentwater mi south...

...dense fog advisory in effect until 4 am cdt saturday...

.tonight...south winds to 30 kt veering to west. patchy fog. rain
showers with a chance of thunderstorms. waves 4 to 7 ft
occasionally to 9 ft subsiding to 4 to 6 ft occasionally to 8 ft.
.saturday...northwest winds to 30 kt becoming west 15 to 25 kt.
patchy fog in the morning. slight chance of rain showers in the
morning. waves 4 to 7 ft occasionally to 9 ft subsiding to 4 to
6 ft occasionally to 8 ft. 
.saturday night...west winds 15 to 25 kt diminishing to 10 to
20 kt. waves 4 to 6 ft occasionally to 8 ft. 
.sunday...west winds 10 to 20 kt becoming northwest. waves 4 to
6 ft occasionally to 8 ft. 
.sunday night...north winds 10 to 15 kt becoming northeast. waves
2 to 4 ft. 
.monday...east winds 5 to 10 kt becoming southeast 10 to 20 kt in
the afternoon. waves 1 to 2 ft building to 2 to 4 ft. 
.monday night...southeast winds 15 to 25 kt becoming south to
30 kt. waves 4 to 6 ft occasionally to 8 ft building to 5 to 8 ft
occasionally to 10 ft. 
.tuesday...south winds to 30 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. 
.wednesday...northeast winds 10 to 15 kt. waves 2 to 4 ft
subsiding to 1 to 3 ft.  

$$