fzus61 kcle 181342
glfle 
expires:202608182015;;937980

open lake forecast for lake erie
national weather service cleveland oh
942 am edt tue aug 18 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 30.00 inches will move south of lake erie today. a 
cold front will move south across the lake on wednesday. high 
pressure 30.20 inches will build over the lake on thursday and 
friday. low pressure 30.10 inches will enter the central great 
lakes region on saturday with a cold front approaching lake erie 
from the west.


lez162>164-182015-
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-
942 am edt tue aug 18 2026

.this afternoon...west winds 5 to 10 knots becoming southwest.
waves 1 foot or less. 
.tonight...southwest winds 10 to 15 knots becoming west. a chance
of showers with a slight chance of thunderstorms after midnight.
waves 2 feet or less. 
.wednesday...west winds 5 to 15 knots becoming northwest less
than 10 knots. a chance of showers. waves 2 feet or less. 
.wednesday night...north winds 10 knots or less becoming east. a
chance of showers in the evening. waves 1 foot or less. 
.thursday...east winds 5 to 10 knots becoming southeast. waves
1 foot or less. 
.friday...south winds 10 knots or less. waves 1 foot or less. 
.saturday...southwest winds 10 to 15 knots becoming northwest. a
chance of showers and thunderstorms during the day, then a chance
of showers saturday night. waves 2 feet or less. 

winds and waves higher in and near thunderstorms.

$$

fzus63 kmkx 181358
glflm 
expires:202608182115;;938265

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
858 am cdt tue aug 18 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...

low pressure around 29.6 inches moving across the hudson bay 
region today will drag a cold front southward across lake michigan  
this afternoon and evening. expect prevailing west to 
southwesterly winds ahead of the cold front along with a few 
thunderstorms through this evening. then the cold front will push 
down the lake by wednesday bringing a north-northwesterly winds 
shift. winds will weaken and become more variable as high pressure
around 30.0 inches tracks through the western great lakes through
thursday. southwesterly winds and thunderstorm chances return 
later friday as another system is progged to bring another cold 
front across the upper great lakes region.


lmz261-362-364-366-563-565-567-868-182115-
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-
858 am cdt tue aug 18 2026

sheboygan wi to pentwater mi north...

.rest of today...west winds 10 to 20 kt becoming southwest 15 to
25 kt. slight chance of showers and thunderstorms through mid
morning, then chance of showers and slight chance of
thunderstorms this afternoon. waves 2 to 4 ft. 
.tonight...west winds 10 to 20 kt becoming northwest 10 to 15 kt.
chance of showers and thunderstorms in the evening. waves 2 to
4 ft subsiding to 1 to 3 ft. 
.wednesday...northwest winds 10 to 15 kt backing to southwest
10 to 20 kt. waves 1 to 2 ft. 
.wednesday night...south winds 10 to 15 kt becoming southeast.
waves 1 to 2 ft. 
.thursday...southwest winds 10 to 15 kt increasing to 10 to
20 kt. waves 1 to 2 ft. 
.thursday night...south winds 10 to 20 kt increasing to 15 to
25 kt. waves 2 to 4 ft. 
.friday...southwest winds to 30 kt. chance of showers. waves 3 to
5 ft. 
.saturday...northwest winds 10 to 20 kt increasing to 30 kt.
waves 1 to 3 ft.  

$$

fzus63 kmkx 181358
glflm 
expires:202608182115;;938266

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
858 am cdt tue aug 18 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...

low pressure around 29.6 inches moving across the hudson bay 
region today will drag a cold front southward across lake michigan  
this afternoon and evening. expect prevailing west to 
southwesterly winds ahead of the cold front along with a few 
thunderstorms through this evening. then the cold front will push 
down the lake by wednesday bringing a north-northwesterly winds 
shift. winds will weaken and become more variable as high pressure
around 30.0 inches tracks through the western great lakes through
thursday. southwesterly winds and thunderstorm chances return 
later friday as another system is progged to bring another cold 
front across the upper great lakes region.


lmz080-669-671-673-675-777-779-870-872-874-876-878-182115-
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-
858 am cdt tue aug 18 2026

sheboygan wi to pentwater mi south...

.rest of today...west winds 10 to 20 kt becoming southwest 15 to
25 kt. chance of showers and thunderstorms this afternoon. waves
2 to 4 ft. 
.tonight...southwest winds 10 to 20 kt veering to north 10 to
15 kt. chance of showers and thunderstorms in the evening, then
slight chance of showers and thunderstorms overnight. waves 3 to
5 ft. 
.wednesday...north winds 10 to 15 kt increasing to 10 to 20 kt.
waves 1 to 3 ft subsiding to 1 to 2 ft. 
.wednesday night...northeast winds 10 to 15 kt becoming southeast
5 to 10 kt. waves 1 to 2 ft. 
.thursday...southeast winds 5 to 10 kt becoming south 10 to 20 kt
in the afternoon. waves 1 to 2 ft. 
.thursday night...south winds 10 to 20 kt. waves 1 to 3 ft. 
.friday...southwest winds 10 to 20 kt increasing to 15 to 25 kt.
waves 2 to 4 ft. 
.saturday...northwest winds 10 to 20 kt increasing to 15 to
25 kt. waves 2 to 4 ft.  

$$