fzus61 kcle 261957
glfle 
expires:202608270215;;406080

open lake forecast for lake erie
national weather service cleveland oh
357 pm edt wed aug 26 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...
low pressure of 29.70 inches will pass north of the great lakes 
tonight and pull a cold front east across lake erie thursday. 
high pressure of 30.10 inches will build into the great lakes 
friday before settling to the mid-atlantic region sunday. a warm
front will move north across lake erie sunday night ahead of low
pressure approaching the western great lakes.


lez162>164-270215-
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-
357 pm edt wed aug 26 2026

.tonight...south winds 10 to 15 knots becoming southwest. showers
likely with a chance of thunderstorms this evening, then a slight
chance of showers and thunderstorms after midnight. waves 1 to
2 feet. 
.thursday...west winds 5 to 15 knots. waves 2 feet or less. 
.thursday night...west winds 5 to 10 knots becoming north. a
chance of showers in the evening. waves 2 feet or less. 
.friday...north winds 5 to 10 knots becoming northeast. waves
2 feet or less. 
.friday night...east winds 10 knots or less becoming south. waves
1 foot or less. 
.saturday...south winds 10 knots or less. waves 1 foot or less. 
.sunday...southwest winds 10 to 15 knots. waves 2 feet or less. 
.monday...southwest winds 10 to 15 knots. waves 2 feet or less. 

winds and waves higher in and near thunderstorms.

$$

fzus63 kdtx 261935
glfsc 
expires:202608270345;;405458

lake st clair forecast
national weather service detroit/pontiac mi
335 pm edt wed aug 26 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...a cold front will move through tonight bringing
increasing chances for showers and thunderstorms ahead of it for
this afternoon and evening. wind direction veers south to west
after passage of the front then northwest flow holds through
thursday. high pressure builds back into the great lakes friday
into saturday.


lcz460-270345-
lake st clair-
335 pm edt wed aug 26 2026

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

$$

fzus63 kdtx 261935
glflh 
expires:202608270345;;405456

open lake forecast for lake huron
national weather service detroit/pontiac mi
335 pm edt wed aug 26 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...a cold front will move through tonight bringing
increasing chances for showers and thunderstorms ahead of it for
this afternoon and evening. wind direction veers south to west
after passage of the front then northwest flow holds through
thursday. high pressure builds back into the great lakes friday
into saturday.


lhz462>464-270345-
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-
335 pm edt wed aug 26 2026

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


$$

fzus63 kmkx 262010
glflm 
expires:202608270315;;407450

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
310 pm cdt wed aug 26 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...

moderate northwest winds continue this afternoon in the wake of
a cold front that passed over the lake this morning. these
northwest winds should ease tonight, then become gusty again 
and a bit stronger on thursday after dawn as another cold front
moves south down the lake. winds then ease thursday night and 
become light and variable on friday as high pressure of 30.2 
inches settles into the upper great lakes region.

high pressure then pulls east saturday and low pressure of 29.8
will approach from the plains. southerly winds will return and
become gusty this weekend. some gale potential exists on sunday.


lmz261-362-364-366-563-565-567-868-270315-
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-
310 pm cdt wed aug 26 2026

sheboygan wi to pentwater mi north...

.tonight...northwest winds 10 to 20 kt. chance of thunderstorms
with isolated showers this evening. waves 2 to 4 ft subsiding to
1 to 3 ft. 
.thursday...northwest winds 10 to 20 kt becoming north. waves
2 to 4 ft. 
.thursday night...northeast winds 10 to 20 kt diminishing to 5 to
10 kt. waves 1 to 3 ft subsiding to 1 to 2 ft. 
.friday...northeast winds 10 to 15 kt veering to south. waves
1 to 2 ft. 
.friday night...south winds 10 to 15 kt increasing to 10 to
20 kt. waves 1 to 3 ft. 
.saturday...southwest winds 15 to 25 kt becoming south to 30 kt.
waves 2 to 4 ft building to 4 to 6 ft occasionally to 8 ft. 
.saturday night...south winds to 30 kt. chance of showers. waves
4 to 7 ft occasionally to 9 ft. 
.sunday...south winds to 30 kt increasing to gales to 40 kt.
chance of showers. waves 6 to 9 ft occasionally to 12 ft. 
.monday...south winds 15 to 25 kt. chance of showers. waves 4 to
6 ft occasionally to 8 ft.  

$$

fzus63 kmkx 262010
glflm 
expires:202608270315;;407451

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
310 pm cdt wed aug 26 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...

moderate northwest winds continue this afternoon in the wake of
a cold front that passed over the lake this morning. these
northwest winds should ease tonight, then become gusty again 
and a bit stronger on thursday after dawn as another cold front
moves south down the lake. winds then ease thursday night and 
become light and variable on friday as high pressure of 30.2 
inches settles into the upper great lakes region.

high pressure then pulls east saturday and low pressure of 29.8
will approach from the plains. southerly winds will return and
become gusty this weekend. some gale potential exists on sunday.


lmz080-669-671-673-675-777-779-870-872-874-876-878-270315-
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-
310 pm cdt wed aug 26 2026

sheboygan wi to pentwater mi south...

.tonight...west winds 10 to 20 kt becoming northwest. slight
chance of thunderstorms with isolated showers this evening. waves
2 to 4 ft. 
.thursday...northwest winds 10 to 20 kt becoming northeast. waves
2 to 4 ft. 
.thursday night...northeast winds 10 to 20 kt becoming east 5 to
10 kt. waves 2 to 4 ft subsiding to 1 to 2 ft. 
.friday...east winds 5 to 10 kt becoming southeast 10 to 15 kt.
waves 1 to 2 ft. 
.friday night...south winds 10 to 15 kt increasing to 10 to
20 kt. waves 1 to 3 ft. 
.saturday...southwest winds 15 to 25 kt becoming south to 30 kt.
waves 2 to 4 ft building to 4 to 6 ft occasionally to 8 ft. 
.saturday night...south winds to 30 kt. chance of showers. waves
4 to 7 ft occasionally to 9 ft. 
.sunday...south winds to 30 kt increasing to gales to 35 kt.
chance of showers. waves 6 to 9 ft occasionally to 12 ft. 
.monday...southwest winds 15 to 25 kt becoming south. chance of
showers. waves 4 to 6 ft occasionally to 8 ft.  

$$