fzus61 kcle 171326
glfle 
expires:202608172015;;881021

open lake forecast for lake erie
national weather service cleveland oh
926 am edt mon aug 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...
high pressure 30.00 inches will build from the north today and 
move south of lake erie on tuesday. a cold front will cross the 
lake on wednesday. high pressure of 30.20 inches will build back 
over the lake on thursday and friday.


lez162>164-172015-
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-
926 am edt mon aug 17 2026

.rest of today...north winds 5 to 15 knots becoming northwest. a 
slight chance of showers late this morning. waves 2 feet or less.
.tonight...north winds 10 knots or less becoming northwest. waves
1 foot or less. 
.tuesday...west winds 5 to 10 knots becoming southwest. waves
1 foot or less. 
.tuesday night...southwest winds 5 to 15 knots. a chance of
showers overnight. waves 1 to 2 feet. 
.wednesday...west winds 5 to 15 knots becoming northeast. a
chance of showers during the day. waves 2 feet or less. 
.thursday...northeast winds 5 to 10 knots becoming east. waves
1 foot or less. 
.friday...east winds 10 knots or less becoming south. waves
1 foot or less. 

$$

fzus63 kdtx 171359
glfsc 
expires:202608172200;;881777

lake st clair forecast
national weather service detroit/pontiac mi
959 am edt mon aug 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...high pressure, 30.20 inches, through the early week
period. a cold front then tracks across the great lakes mid-week. 


lcz460-172200-
lake st clair-
959 am edt mon aug 17 2026

.rest of today...north winds 5 to 10 knots. partly sunny. waves 2
feet or less.
.tonight...northeast winds 5 to 10 knots this evening becoming light
and variable. mostly clear. waves 2 feet or less.
.tuesday...light and variable winds becoming southwest 5 to 10 knots
in the late morning and afternoon. mostly sunny. waves 2 feet or
less.
.tuesday night...southwest winds 10 to 15 knots. partly cloudy. a
chance of light showers ...then light showers likely after midnight.
waves 2 feet or less.
.wednesday...northwest winds 10 to 15 knots becoming northeast 5 to
10 knots in the afternoon and evening. partly cloudy. light showers
likely in the morning...then a chance of light showers in the
afternoon. waves 2 feet or less.
.thursday...east winds 5 to 10 knots. mostly clear. waves 2 feet or
less.
.friday...south winds 5 to 10 knots. clear. waves 2 feet or less.

$$

fzus63 kdtx 171359
glflh 
expires:202608172200;;881775

open lake forecast for lake huron
national weather service detroit/pontiac mi
959 am edt mon aug 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...high pressure, 30.20 inches, through the early week
period. a cold front then tracks across the great lakes mid-week. 


lhz462>464-172200-
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-
959 am edt mon aug 17 2026

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


$$

fzus63 kmkx 171225
glflm 
expires:202608172115;;879095

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

high pressure around 30.1 inches will build east from the plains 
today, bringing light and variable winds to lake michigan through 
tonight. the high pressure will pass to the south of lake 
michigan on tuesday and bringing increasing southwesterly winds 
through the day as a low pressure around 29.5 inches develops and
meanders over the hudson bay region. this low pressure will then 
drag a slow moving cold front across the upper great lakes later 
tuesday into early wednesday and bring thunderstorm chances back 
to the region. the front is progged to push east of the region by 
wednesday with another high pressure building back into the 
region for the second half of the week along with light and 
variable winds. increasing southwesterly winds are expected to 
return for the end of the week along with additional thunderstorm
chances.


lmz261-362-364-366-563-565-567-868-172115-
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-
725 am cdt mon aug 17 2026

sheboygan wi to pentwater mi north...

.rest of today...northwest winds 5 to 10 kt becoming west late
this morning, then becoming southwest 10 to 20 kt this afternoon.
waves 1 to 2 ft. 
.tonight...south winds 10 to 15 kt becoming southwest 10 to
20 kt. waves 1 to 3 ft. 
.tuesday...west winds 10 to 20 kt increasing to 15 to 25 kt.
scattered showers in the morning, then chance of showers and
thunderstorms in the afternoon. waves 2 to 4 ft. 
.tuesday night...northwest winds 10 to 20 kt becoming north 10 to
15 kt. chance of showers and thunderstorms in the evening, then
chance of showers overnight. waves 2 to 4 ft subsiding to 1 to
3 ft. 
.wednesday...northwest winds 10 to 15 kt increasing to 10 to
20 kt. waves 1 to 2 ft. 
.wednesday night...east winds 10 to 15 kt becoming northeast.
waves 1 to 2 ft. 
.thursday...northeast winds 5 to 10 kt veering to southeast 10 to
20 kt. waves 1 ft or less. 
.friday...southwest winds 15 to 25 kt increasing to 30 kt. waves
2 to 4 ft.  

$$

fzus63 kmkx 171225
glflm 
expires:202608172115;;879096

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

high pressure around 30.1 inches will build east from the plains 
today, bringing light and variable winds to lake michigan through 
tonight. the high pressure will pass to the south of lake 
michigan on tuesday and bringing increasing southwesterly winds 
through the day as a low pressure around 29.5 inches develops and
meanders over the hudson bay region. this low pressure will then 
drag a slow moving cold front across the upper great lakes later 
tuesday into early wednesday and bring thunderstorm chances back 
to the region. the front is progged to push east of the region by 
wednesday with another high pressure building back into the 
region for the second half of the week along with light and 
variable winds. increasing southwesterly winds are expected to 
return for the end of the week along with additional thunderstorm
chances.


lmz080-669-671-673-675-777-779-870-872-874-876-878-172115-
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-
725 am cdt mon aug 17 2026

sheboygan wi to pentwater mi south...

.rest of today...north winds 10 to 15 kt increasing to 10 to
20 kt. isolated sprinkles this morning. waves 1 to 3 ft. 
.tonight...southwest winds 10 to 15 kt becoming west 10 to 20 kt.
waves 1 to 3 ft. 
.tuesday...west winds 10 to 20 kt becoming southwest 15 to 25 kt.
chance of showers in the afternoon. waves 2 to 4 ft. 
.tuesday night...west winds 10 to 20 kt becoming northwest.
chance of showers and thunderstorms in the evening, then chance
of showers overnight. waves 2 to 4 ft. 
.wednesday...north winds 10 to 15 kt increasing to 10 to 20 kt.
waves 1 to 3 ft. 
.wednesday night...northeast winds 10 to 20 kt diminishing to
5 to 10 kt. waves 1 to 2 ft. 
.thursday...northeast winds 5 to 10 kt increasing to 10 to 15 kt.
waves 1 to 2 ft. 
.friday...south winds 10 to 20 kt increasing to 15 to 25 kt.
waves 1 to 2 ft building to 2 to 4 ft.  

$$