fzus61 kcle 151948
glfle 
expires:202608160230;;249373

open lake forecast for lake erie
national weather service cleveland oh
348 pm edt sat aug 15 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 move north across lake erie late tonight into
sunday morning. low pressure 29.80 inches will move across the
northern great lakes dragging a cold front across lake erie late
sunday night. high pressure 30.00 inches builds into the region
monday through tuesday night. another low pressure 29.80 inches
will move through the region on wednesday. 


lez162>164-160230-
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 sat aug 15 2026

.tonight...east winds 5 to 15 knots becoming south. a chance of
showers with a slight chance of thunderstorms early, then showers
likely with a slight chance of thunderstorms. a chance of showers
late. waves 2 feet or less. 
.sunday...southwest winds 5 to 15 knots becoming west. a chance
of showers early, then showers likely with a slight chance of
thunderstorms late in the morning. showers with a chance of
thunderstorms in the afternoon. waves 1 to 2 feet. 
.sunday night...west winds 10 to 15 knots becoming northwest. a
chance of showers and thunderstorms in the evening, then a chance
of showers overnight. waves 1 to 2 feet. 
.monday...north winds 5 to 10 knots becoming northwest. a chance
of showers in the morning. waves 2 feet or less. 
.monday night...northwest winds 10 knots or less becoming west.
waves 1 foot or less. 
.tuesday...west winds 5 to 10 knots becoming southwest. a chance
of showers and thunderstorms tuesday night. waves 2 feet or less.
.wednesday...southwest winds 10 to 15 knots becoming northeast.
showers likely with a chance of thunderstorms during the day.
waves 1 to 3 feet. 
.thursday...north winds 5 to 15 knots becoming east. waves 1 to
3 feet. 

winds and waves higher in and near thunderstorms.

$$

fzus63 kdtx 151959
glfsc 
expires:202608160400;;249568

lake st clair forecast
national weather service detroit/pontiac mi
359 pm edt sat aug 15 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 of 30.20 inches moves over the northeast
through sunday as low pressure of 29.6 inches moves east across
ontario. as the low tracks east, it will push a cold front across
the central great lakes region late sunday. this cold front
brings in a 6 to 8 hour bout of 20 to 25 knot northwest winds 
sunday evening into early monday morning and chances for 
thunderstorms sunday evening.


lcz460-160400-
lake st clair-
359 pm edt sat aug 15 2026

.tonight...southeast winds 5 to 10 knots increasing to 10 to 15
knots in the late evening and overnight. mostly cloudy becoming
partly cloudy after midnight becoming mostly cloudy. a chance of
light showers after midnight. waves 2 feet or less.
.sunday...southwest winds 5 to 10 knots. mostly cloudy. a chance of
light showers early in the afternoon. a chance of thunderstorms in
the afternoon. light showers likely late in the afternoon. waves 2
feet or less.
.sunday night...west winds 5 to 10 knots becoming northwest 10 to 15
knots in the late evening and overnight. partly cloudy. a chance of
thunderstorms early in the evening. a chance of light showers .
waves 2 feet or less.
.monday...north winds 10 to 15 knots diminishing to 5 to 10 knots
early in the afternoon. partly sunny until late afternoon then
clearing. waves 2 feet or less.
.monday night...northeast winds 5 to 10 knots veering to the
southeast by midnight...then becoming light and variable after
midnight. clear. waves 2 feet or less.
.tuesday...light and variable winds becoming southwest 10 to 15
knots in the afternoon and evening. sunny in the morning becoming
mostly clear. waves 2 feet or less.
.wednesday...north winds 10 to 15 knots. partly cloudy. showers
likely and a chance of thunderstorms. waves 2 feet or less.
.thursday...northeast winds 10 to 15 knots. mostly clear. waves 2
feet or less.

$$

fzus63 kdtx 151958
glflh 
expires:202608160400;;249469

open lake forecast for lake huron
national weather service detroit/pontiac mi
358 pm edt sat aug 15 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 of 30.20 inches moves over the northeast
through sunday as low pressure of 29.6 inches moves east across
ontario. as the low tracks east, it will push a cold front across
the central great lakes region late sunday. this cold front
brings in a 6 to 8 hour bout of 20 to 25 knot northwest winds 
sunday evening into early monday morning and chances for 
thunderstorms sunday evening.


lhz462>464-160400-
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-
358 pm edt sat aug 15 2026

.tonight...east winds 5 to 10 knots becoming southeast 10 to
15 knots after midnight. waves 1 to 3 feet building to 2 to
4 feet after midnight. 
.sunday...southeast winds 10 to 15 knots becoming light and
variable. a chance of showers and thunderstorms in the afternoon.
waves 2 to 4 feet subsiding to 1 to 3 feet in the afternoon. 
.sunday night...southeast winds 5 to 10 knots becoming north
10 to 15 knots by midnight...then becoming northwest 15 to
20 knots after midnight. a chance of showers in the evening.
waves 2 feet or less building to 3 to 5 feet in the late evening
and overnight. 
.monday...northwest winds 10 to 15 knots becoming north 5 to
10 knots early in the afternoon. waves 3 to 5 feet. 
.monday night...light and variable winds. waves 1 to 3 feet. 
.tuesday...southwest winds 5 to 10 knots increasing to 10 to
15 knots late in the evening. a chance of showers late in the
morning. a chance of thunderstorms late in the afternoon. rain
showers likely late in the evening. waves 2 feet or less. 
.wednesday...west winds 10 to 15 knots veering to the north.
showers likely early in the morning. a chance of showers until
early evening. waves 1 to 3 feet building to 3 to 5 feet. 
.thursday...northwest winds 10 to 15 knots becoming north 5 to
10 knots . waves 2 to 4 feet. 


$$

fzus63 kmkx 151949
glflm 
expires:202608160315;;249408

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
249 pm cdt sat aug 15 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...

30.2 inch high pressure is centered near the saint lawrence river
this afternoon, resulting in generally light easterly winds 
across the open waters. the high will progress into the 
northeastern united states tonight as a cold front approaches from
the northern great plains, resulting in a brief period of south- 
southeasterly winds this afternoon and tonight. the aforementioned
surface front will move across lake michigan early sunday 
morning, with northwest winds becoming established by sunday 
afternoon across the entirety of the lake. periods of scattered 
showers and thunderstorms continue today into sunday morning ahead
of the front. severe weather is not anticipated. 

a new area of 30.1 inch high pressure will build in from the
northern great plains late sunday night into monday, bringing
light and variable winds to the waters through the majority of
monday and monday evening. a slow-moving cold front will approach
from the northern great plains tuesday into wednesday, bringing
increasing southwest winds and chances for thunderstorms. precise
timing details will continue to be refined over coming forecasts,
though it does appear that a few stronger storms could be possible
over the southern half of the waters tuesday afternoon & night.
winds will trend light and variable behind the front from
wednesday night through the end of next week.


lmz261-362-364-366-563-565-567-868-160315-
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 sat aug 15 2026

sheboygan wi to pentwater mi north...

.tonight...east winds 10 to 20 kt veering to south. slight chance
of showers and thunderstorms overnight. waves 1 to 3 ft.
.sunday...southwest winds 10 to 15 kt increasing to 10 to 20 kt
late in the morning, then becoming west early in the afternoon
becoming north 15 to 25 kt late. chance of showers and slight
chance of thunderstorms in the morning, then slight chance of
showers in the afternoon. waves 1 to 2 ft building to 2 to 4 ft. 
.sunday night...north winds 15 to 25 kt becoming northwest 10 to
15 kt. waves 2 to 4 ft subsiding to 1 to 3 ft. 
.monday...northwest winds 10 to 15 kt backing to southwest 10 to
20 kt. waves 1 to 3 ft. 
.monday night...south winds 10 to 20 kt becoming southwest. waves
1 to 3 ft. 
.tuesday...southwest winds 15 to 25 kt. chance of showers and
thunderstorms in the afternoon. waves 2 to 4 ft. 
.tuesday night...northwest winds 10 to 20 kt becoming north.
chance of showers. waves 2 to 4 ft. 
.wednesday...north winds 10 to 20 kt increasing to 15 to 25 kt.
waves 1 to 3 ft. 
.thursday...north winds 10 to 15 kt backing to southwest 10 to
20 kt. waves 1 to 2 ft.  

$$

fzus63 kmkx 151949
glflm 
expires:202608160315;;249409

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
249 pm cdt sat aug 15 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...

30.2 inch high pressure is centered near the saint lawrence river
this afternoon, resulting in generally light easterly winds 
across the open waters. the high will progress into the 
northeastern united states tonight as a cold front approaches from
the northern great plains, resulting in a brief period of south- 
southeasterly winds this afternoon and tonight. the aforementioned
surface front will move across lake michigan early sunday 
morning, with northwest winds becoming established by sunday 
afternoon across the entirety of the lake. periods of scattered 
showers and thunderstorms continue today into sunday morning ahead
of the front. severe weather is not anticipated. 

a new area of 30.1 inch high pressure will build in from the
northern great plains late sunday night into monday, bringing
light and variable winds to the waters through the majority of
monday and monday evening. a slow-moving cold front will approach
from the northern great plains tuesday into wednesday, bringing
increasing southwest winds and chances for thunderstorms. precise
timing details will continue to be refined over coming forecasts,
though it does appear that a few stronger storms could be possible
over the southern half of the waters tuesday afternoon & night.
winds will trend light and variable behind the front from
wednesday night through the end of next week.


lmz080-669-671-673-675-777-779-870-872-874-876-878-160315-
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 sat aug 15 2026

sheboygan wi to pentwater mi south...

.tonight...southeast winds 5 to 10 kt becoming south. chance of
showers and slight chance of thunderstorms overnight. waves 2 to
4 ft subsiding to 1 to 2 ft. 
.sunday...southwest winds 10 to 15 kt becoming northwest 10 to
20 kt. chance of showers and slight chance of thunderstorms in
the morning, then slight chance of showers and thunderstorms in
the afternoon. waves 1 to 2 ft. 
.sunday night...northwest winds 10 to 20 kt becoming north. waves
2 to 4 ft. 
.monday...north winds 10 to 15 kt becoming northwest 10 to 20 kt.
waves 2 to 4 ft. 
.monday night...southwest winds 10 to 20 kt. waves 1 to 2 ft
building to 2 to 4 ft. 
.tuesday...southwest winds 10 to 20 kt. waves 2 to 4 ft. 
.tuesday night...southwest winds 10 to 20 kt becoming northwest.
showers likely with a chance of thunderstorms. waves 2 to 4 ft. 
.wednesday...north winds 10 to 20 kt increasing to 30 kt. chance
of showers. waves 2 to 4 ft. 
.thursday...northeast winds 10 to 15 kt becoming east 10 to
20 kt. waves 1 to 3 ft.  

$$