fzus61 kcle 250740
glfle 
expires:202608251415;;323963

open lake forecast for lake erie
national weather service cleveland oh
340 am edt tue aug 25 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 moves across the region today before 
shifting east. low pressure 29.80 inches tracks north of the great
lakes wednesday and thursday, pulling a cold front across lake 
erie on thursday. high pressure 30.20 inches builds into the great
lakes friday and into the weekend. 


lez162>164-251415-
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-
340 am edt tue aug 25 2026

.today...northwest winds 10 knots or less becoming southeast.
waves 1 foot or less. 
.tonight...southeast winds 5 to 10 knots becoming south. waves
2 feet or less. 
.wednesday...southwest winds 10 to 15 knots. waves 2 feet or
less. 
.wednesday night...south winds 10 to 15 knots becoming southwest.
showers likely. waves 1 to 3 feet. 
.thursday...west winds 5 to 15 knots becoming northeast. a chance
of showers thursday night. waves 1 to 3 feet subsiding to 1 foot
or less. 
.friday...north winds 5 to 10 knots becoming east. waves 2 feet
or less. 
.saturday...southeast winds 10 knots or less becoming south.
waves 1 foot or less. 

$$

fzus63 kdtx 250732
glfsc 
expires:202608251545;;323654

lake st clair forecast
national weather service detroit/pontiac mi
332 am edt tue aug 25 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, 30.10 inches, will begin to work in
across the great lakes tonight through tomorrow. this will bring
lighter winds and dry weather to the area. a cold front will then
move through on wednesday, bringing elevated winds across lake
huron along with increasing chances for showers and
thunderstorms.


lcz460-251545-
lake st clair-
332 am edt tue aug 25 2026

.today...northwest winds 5 to 10 knots early in the morning becoming
light and variable...then becoming southeast 5 to 10 knots late in
the afternoon. mostly sunny. waves 2 feet or less.
.tonight...south winds 5 to 10 knots. partly cloudy. waves 2 feet or
less.
.wednesday...southwest winds 5 to 10 knots becoming south 10 to 15
knots in the late morning and afternoon. partly sunny. waves 2 feet
or less.
.wednesday night...southwest winds 10 to 15 knots. partly cloudy. a
chance of light showers . waves 2 feet or less.
.thursday...west winds 5 to 10 knots veering to the north in the
evening. mostly clear. waves 2 feet or less.
.friday...northeast winds 10 to 15 knots. mostly clear. waves 2 feet
or less.
.saturday...south winds 10 to 15 knots. mostly clear. waves 2 feet
or less.

$$

fzus63 kdtx 250732
glflh 
expires:202608251545;;323659

open lake forecast for lake huron
national weather service detroit/pontiac mi
332 am edt tue aug 25 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, 30.10 inches, will begin to work in
across the great lakes tonight through tomorrow. this will bring
lighter winds and dry weather to the area. a cold front will then
move through on wednesday, bringing elevated winds across lake
huron along with increasing chances for rain showers and
thunderstorms.


lhz462>464-251545-
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-
332 am edt tue aug 25 2026

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


$$

fzus63 kmkx 250803
glflm 
expires:202608251530;;324539

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
303 am cdt tue aug 25 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 of 30.1 inches centered over southern lake michigan
will exit the region as low pressure system around 29.7 inches 
approaches from the northern plains. as the low crosses lake
superior east, an associated cold front will move across lake 
michigan wednesday. showers and thunderstorms will accompany the 
approaching/passing surface low and cold front tonight into 
wednesday. an isolated stronger storm with hail and gusty winds 
will be possible but chances are low. increasing southerly winds 
today will shift to the northwest late wednesday afternoon/evening.
breezy northwest winds are expected through wednesday night. 

high pressure around 30.1 inches will gradually build in from the
northern plains behind this exiting low for thursday and friday. 
light north to northeast winds are expected.


lmz261-362-364-366-563-565-567-868-251530-
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-
303 am cdt tue aug 25 2026

sheboygan wi to pentwater mi north...

.today...southwest winds 5 to 10 kt becoming south 15 to 25 kt.
waves 1 to 2 ft building to 3 to 5 ft. 
.tonight...south winds 15 to 25 kt. slight chance of showers in
the evening, then chance of showers and slight chance of
thunderstorms overnight. waves 4 to 6 ft occasionally to 8 ft. 
.wednesday...southwest winds to 30 kt. showers likely in the
morning, then showers likely with a chance of thunderstorms in
the afternoon. waves 4 to 7 ft occasionally to 9 ft subsiding to
3 to 5 ft. 
.wednesday night...northwest winds 15 to 25 kt diminishing to
10 to 20 kt. chance of showers and thunderstorms in the evening.
waves 2 to 4 ft subsiding to 1 to 3 ft. 
.thursday...northwest winds 15 to 25 kt becoming north. waves
2 to 4 ft. 
.thursday night...north winds 15 to 25 kt diminishing to 10 to
15 kt. waves 1 to 3 ft. 
.friday...north winds 10 to 15 kt. waves 1 to 2 ft. 
.saturday...south winds 10 to 20 kt increasing to 30 kt. waves
1 to 3 ft building to 3 to 5 ft.  

$$

fzus63 kmkx 250803
glflm 
expires:202608251530;;324540

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
303 am cdt tue aug 25 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 of 30.1 inches centered over southern lake michigan
will exit the region as low pressure system around 29.7 inches 
approaches from the northern plains. as the low crosses lake
superior east, an associated cold front will move across lake 
michigan wednesday. showers and thunderstorms will accompany the 
approaching/passing surface low and cold front tonight into 
wednesday. an isolated stronger storm with hail and gusty winds 
will be possible but chances are low. increasing southerly winds 
today will shift to the northwest late wednesday afternoon/evening.
breezy northwest winds are expected through wednesday night. 

high pressure around 30.1 inches will gradually build in from the
northern plains behind this exiting low for thursday and friday. 
light north to northeast winds are expected.


lmz080-669-671-673-675-777-779-870-872-874-876-878-251530-
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-
303 am cdt tue aug 25 2026

sheboygan wi to pentwater mi south...

.today...south winds 5 to 10 kt increasing to 15 to 25 kt. waves
1 ft or less building to 3 to 5 ft. 
.tonight...south winds 15 to 25 kt becoming southwest. slight
chance of showers and thunderstorms overnight. waves 3 to 5 ft
building to 4 to 6 ft occasionally to 8 ft. 
.wednesday...southwest winds 15 to 25 kt diminishing to 10 to
20 kt. chance of showers. waves 4 to 7 ft occasionally to 9 ft
subsiding to 3 to 5 ft. 
.wednesday night...west winds 10 to 20 kt becoming northwest.
waves 2 to 4 ft. 
.thursday...north winds 10 to 20 kt increasing to 15 to 25 kt.
waves 2 to 4 ft. 
.thursday night...north winds 10 to 20 kt becoming northeast
10 to 15 kt. waves 2 to 4 ft subsiding to 1 to 3 ft. 
.friday...northeast winds 5 to 10 kt increasing to 10 to 15 kt.
waves 1 to 2 ft. 
.saturday...south winds 10 to 20 kt increasing to 30 kt. waves
1 to 3 ft building to 3 to 5 ft.  

$$