fzus61 kcle 181310
glfle 
expires:202605182015;;767622

open lake forecast for lake erie
national weather service cleveland oh
910 am edt mon may 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...
southerly flow continues across the region through tuesday. low
pressure 29.70 inches tracks through the northern great lakes on
tuesday, pulling a cold front southeast across lake erie late
tuesday night and early wednesday morning. high pressure 30.40
inches builds into the great lakes wednesday and thursday, exiting
to the east across new england on friday.


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-
910 am edt mon may 18 2026

.this afternoon...south winds 10 to 15 knots becoming southwest
15 to 20 knots. a slight chance of showers and thunderstorms
late. waves 1 to 3 feet. 
.tonight...southwest winds 15 to 20 knots diminishing to 10 to
15 knots. a chance of showers and thunderstorms in the evening,
then a chance of showers with a slight chance of thunderstorms
after midnight. waves 1 to 3 feet. 
.tuesday...south winds 10 to 15 knots becoming southwest 15 to
20 knots. showers and thunderstorms likely in the afternoon.
waves 1 to 3 feet building to 2 to 4 feet. 
.tuesday night...southwest winds 15 to 20 knots becoming
northwest 10 to 15 knots. showers with thunderstorms likely in
the evening, then showers overnight. waves 2 to 4 feet subsiding
to 1 to 3 feet. 
.wednesday...north winds 10 to 15 knots becoming northeast 15 to
20 knots. waves 1 to 3 feet. 
.thursday...northeast winds 15 to 20 knots becoming east. waves
1 to 3 feet. 
.friday...east winds 15 to 20 knots becoming southeast 10 to
15 knots. a chance of showers during the day, then showers likely
friday night. waves 1 to 3 feet. 

winds and waves higher in and near thunderstorms.

$$

fzus63 kdtx 181359
glfsc 
expires:202605182200;;768759

lake st clair forecast
national weather service detroit/pontiac mi
959 am edt mon may 18 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 warm front lifts across lake huron this morning,
with southerly flow expanding across all of the local waters.
strong to severe thunderstorms are possible this afternoon-
evening and again tuesday as a cold front sweeps across the
region. high pressure, 30.50 inches, then builds in mid-week.


lcz460-182200-
lake st clair-
959 am edt mon may 18 2026

...small craft advisory in effect through this evening...

.rest of today...south winds 15 to 20 knots increasing to 20 to 25
knots late in the afternoon. mostly sunny. waves 1 to 3 feet
building to 2 to 4 feet late in the afternoon.
.tonight...southwest winds 15 to 20 knots diminishing to 10 to 15
knots after midnight. mostly cloudy with a chance of showers and
thunderstorms in the evening...then partly cloudy with a chance of
light showers after midnight. waves 1 to 3 feet.
.tuesday...south winds 15 to 20 knots becoming southwest 20 to 25
knots with gusts to 30 knots in the late morning and afternoon.
partly sunny. a chance of light showers in the late morning and
early afternoon. light showers likely and a chance of thunderstorms
early in the afternoon. waves 1 to 3 feet building to 2 to 4 feet in
the late morning and afternoon.
.tuesday night...west winds 15 to 20 knots veering to the northwest
after midnight. partly cloudy early in the evening becoming mostly
cloudy. light showers likely and a chance of thunderstorms ...then a
chance of light showers after midnight. waves 1 to 3 feet.
.wednesday...north winds 15 to 20 knots diminishing to 10 to 15
knots in the afternoon...then becoming northeast 15 to 20 knots in
the evening. partly cloudy. waves 2 feet or less.
.thursday...northeast winds 10 to 15 knots. mostly clear. waves 2
feet or less.
.friday...east winds 15 to 20 knots. partly cloudy. a chance of
showers. waves 1 to 3 feet.

$$

fzus63 kdtx 181357
glflh 
expires:202605182200;;768729

open lake forecast for lake huron
national weather service detroit/pontiac mi
957 am edt mon may 18 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 warm front lifts across lake huron this morning,
with southerly flow expanding across all of the local waters.
strong to severe thunderstorms are possible this afternoon-
evening and again tuesday as a cold front sweeps across the
region. high pressure, 30.50 inches, then builds in mid-week.


lhz462>464-182200-
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-
957 am edt mon may 18 2026

.rest of today...south winds 15 to 20 knots. waves 3 to 5 feet. 
.tonight...south winds 10 to 15 knots. showers likely and a
chance of thunderstorms in the evening...then a chance of showers
after midnight. waves 3 to 5 feet. 
.tuesday...south winds 15 to 20 knots. a chance of showers and
thunderstorms in the afternoon. waves 3 to 5 feet. 
.tuesday night...southwest winds 15 to 20 knots. a chance of
showers and thunderstorms in the evening. waves 3 to 5 feet. 
.wednesday...north winds 10 to 15 knots. waves 4 to 6 feet. waves
occasionally around 8 feet. 
.thursday...north winds 5 to 10 knots. waves 2 to 4 feet
subsiding to 1 to 3 feet. 
.friday...east winds 5 to 10 knots increasing to 10 to 15 knots .
waves 1 to 3 feet building to 2 to 4 feet by midnight. 


$$

fzus63 kmkx 181714
glflm 
expires:202605190300;;776143

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
1213 pm cdt mon may 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...

areas of dense fog over the lake this morning with breezy south 
to southwest winds today. these winds will increase slightly
across the lake late tonight and remain breezy ahead of the cold 
frontal passage expected tuesday afternoon as the low pressure
system around 29.6 inches swings northeast of the lake into
ontario. high pressure around 30.4 inches will push in with light
and variable winds taking hold from late wednesday into thursday.


lmz261-362-364-366-563-565-567-868-190300-
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-
1213 pm cdt mon may 18 2026

sheboygan wi to pentwater mi north...

.tonight...south winds 15 to 25 kt increasing to 30 kt. patchy
dense fog in the evening, then areas of dense fog overnight.
chance of rain showers and thunderstorms overnight. waves 4 to
7 ft occasionally to 9 ft building to 5 to 8 ft occasionally to
10 ft. 
.tuesday...south winds to 30 kt veering to west. chance of rain
showers. waves 7 to 10 ft occasionally to 13 ft. 
.tuesday night...northwest winds 15 to 25 kt. waves 4 to 7 ft
occasionally to 9 ft subsiding to 3 to 5 ft. 
.wednesday...north winds 15 to 25 kt diminishing to 10 to 20 kt.
waves 2 to 4 ft. 
.wednesday night...northeast winds 10 to 20 kt diminishing to
5 to 10 kt. waves 1 to 3 ft. 
.thursday...east winds 5 to 10 kt becoming northeast 10 to 20 kt.
waves 1 to 2 ft. 
.friday...southeast winds 10 to 20 kt becoming east. waves 1 to
3 ft.  

$$

fzus63 kmkx 181714
glflm 
expires:202605190300;;776144

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
1213 pm cdt mon may 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...

areas of dense fog over the lake this morning with breezy south 
to southwest winds today. these winds will increase slightly
across the lake late tonight and remain breezy ahead of the cold 
frontal passage expected tuesday afternoon as the low pressure
system around 29.6 inches swings northeast of the lake into
ontario. high pressure around 30.4 inches will push in with light
and variable winds taking hold from late wednesday into thursday.


lmz080-669-671-673-675-777-779-870-872-874-876-878-190300-
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-
1213 pm cdt mon may 18 2026

sheboygan wi to pentwater mi south...

.tonight...south winds 15 to 25 kt increasing to 30 kt. patchy
fog in the evening, then patchy dense fog overnight. slight
chance of showers and thunderstorms in the evening, then chance
of showers and thunderstorms overnight. waves 4 to 7 ft
occasionally to 9 ft building to 5 to 8 ft occasionally to 10 ft.
.tuesday...south winds to 30 kt becoming west 15 to 25 kt. waves
6 to 9 ft occasionally to 12 ft. 
.tuesday night...northwest winds 10 to 20 kt becoming north.
waves 4 to 7 ft occasionally to 9 ft subsiding to 3 to 5 ft. 
.wednesday...north winds 10 to 20 kt increasing to 15 to 25 kt.
waves 3 to 5 ft. 
.wednesday night...northeast winds 10 to 20 kt. waves 3 to 5 ft
subsiding to 2 to 4 ft. 
.thursday...east winds 10 to 20 kt becoming northeast. waves 2 to
4 ft. 
.friday...east winds 10 to 20 kt diminishing to 10 to 15 kt.
waves 2 to 4 ft.  

$$