fzus61 kcle 271432
glfle 
expires:202604272015;;614549

open lake forecast for lake erie
national weather service cleveland oh
1032 am edt mon apr 27 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...
a ridge averaging 30.10 inches departs tonight ahead of an
advancing cold front that will track west to east across lake erie
beginning early tuesday. a secondary trough averaging 29.70 inches
moves in from the southwest wednesday. high pressure 30.00 inches
builds in late thursday.


lez162>164-272015-
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-
1032 am edt mon apr 27 2026

.this afternoon...southeast winds 10 to 15 knots becoming east
15 to 20 knots. waves 1 to 3 feet. 
.tonight...southeast winds 15 to 20 knots becoming south. a
chance of showers with a slight chance of thunderstorms in the
evening, then showers with a slight chance of thunderstorms after
midnight. waves 1 to 3 feet building to 3 to 6 feet. 
.tuesday...south winds 15 to 25 knots becoming west and
diminishing to 10 to 15 knots. a chance of showers in the
morning. waves 3 to 5 feet subsiding to 1 to 3 feet. 
.tuesday night...west winds 5 to 10 knots becoming north. a
chance of showers overnight. waves 2 feet or less. 
.wednesday...northeast winds 5 to 15 knots becoming north.
showers likely during the day. waves 1 to 3 feet. 
.thursday...northwest winds 10 to 15 knots becoming north. waves
1 to 3 feet. 
.friday...north winds 10 to 15 knots. waves 1 to 2 feet. 

winds and waves higher in and near thunderstorms.

$$

fzus63 kdtx 271346
glfsc 
expires:202604272200;;612718

lake st clair forecast
national weather service detroit/pontiac mi
946 am edt mon apr 27 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...the next low, 29.30 inches, will track through lake
superior tonight. brief southerly gales over the north half of
lake huron expected, along with showers and embedded
thunderstorms as the cold front passes through tuesday morning.


lcz460-272200-
lake st clair-
946 am edt mon apr 27 2026

...small craft advisory in effect from 8 pm edt this evening
through tuesday afternoon...

.rest of today...southeast winds 10 to 15 knots increasing to 15 to
20 knots in the afternoon. partly sunny. waves 1 to 3 feet.
.tonight...southeast winds 15 to 20 knots becoming south 20 to 25
knots with gusts to 30 knots. a chance of light showers late in 
the evening. light showers and a chance of thunderstorms after 
midnight. waves 1 to 3 feet building to 2 to 4 feet after 
midnight.
.tuesday...south winds 20 to 25 knots with gusts to 30 knots
becoming southwest 15 to 20 knots in the late morning and early
afternoon...then becoming west 10 to 15 knots early in the
afternoon. partly sunny. a chance of light showers until late
afternoon. waves 2 to 4 feet subsiding to 1 to 3 feet in the late
morning and afternoon.
.tuesday night...west winds 10 to 15 knots becoming north 5 to 10
knots in the late evening and overnight. partly cloudy becoming
mostly cloudy. waves 2 feet or less.
.wednesday...north winds 10 to 15 knots increasing to 15 to 20 knots
in the evening. mostly cloudy with a chance of light showers...then
partly cloudy in the evening. waves 2 feet or less.
.thursday...north winds 10 to 15 knots. mostly clear. waves 2 feet
or less.
.friday...north winds 10 to 15 knots. partly cloudy. waves 2 feet or
less.

$$

fzus63 kdtx 271344
glflh 
expires:202604272145;;612712

open lake forecast for lake huron
national weather service detroit/pontiac mi
944 am edt mon apr 27 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...the next low, 29.30 inches, will track through lake
superior tonight. brief southerly gales over the north half of
lake huron expected, along with showers and embedded
thunderstorms as the cold front passes through tuesday morning.


lhz462>464-272145-
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-
944 am edt mon apr 27 2026

.rest of today...southeast winds 10 to 15 knots. waves 1 to
3 feet building to 2 to 4 feet in the afternoon. 
.tonight...southeast winds 15 to 20 knots increasing to 20 to
25 knots with gusts to around 30 knots in the late evening and
overnight. showers and a chance of thunderstorms after midnight.
waves 4 to 6 feet building to 6 to 9 feet after midnight. waves
occasionally around 12 feet. 
.tuesday...south winds 20 to 25 knots with gusts to around
30 knots becoming southwest 15 to 20 knots in the late morning
and afternoon. a chance of showers in the morning. waves 6 to
9 feet. waves occasionally around 12 feet. 
.tuesday night...west winds 10 to 15 knots becoming north 5 to
10 knots in the late evening and overnight. waves 2 to 4 feet
subsiding to 1 to 3 feet in the late evening and overnight. 
.wednesday...north winds 5 to 10 knots increasing to 15 to
20 knots. a chance of showers in the morning. waves 1 to 3 feet
building to 3 to 5 feet. 
.thursday...northwest winds 10 to 15 knots. waves 3 to 5 feet
subsiding to 2 to 4 feet early in the evening...then building to
3 to 5 feet by midnight. 
.friday...northwest winds 10 to 15 knots. waves 3 to 5 feet. 


$$

fzus63 kmkx 271711
glflm 
expires:202604272115;;620397

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
1211 pm cdt mon apr 27 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 of 29.5 inches over western iowa will move northeast
over lake superior by late tonight while deepening to 29.2 
inches. southeasterly winds will increase throughout today to gust
around 30 kt throughout the afternoon and early overnight hours. 
although the cooler lake temps should dampen the threat for 
widespread gales across the lake, thunderstorms during the 
afternoon and evening may produce multiple periods of gale force 
gusts in the southern half. trends will be monitored into the 
afternoon regarding the wind threat within the storms and 
regarding potential for gales outside of these storms. a cold
front passage will shift winds to the west early tuesday morning,
and remain gusty through tuesday afternoon.

high pressure around 30.1 inches will set up over the upper
midwest and upper great lakes tuesday through friday, producing
light and variable winds.


lmz261-362-364-366-563-565-567-868-272115-
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-
1211 pm cdt mon apr 27 2026

sheboygan wi to pentwater mi north...

.rest of today...southeast winds to 30 kt. chance of rain showers
and thunderstorms. waves 6 to 9 ft occasionally to 12 ft. 
.tonight...southeast winds to 30 kt becoming southwest. rain
showers likely with a chance of thunderstorms in the evening,
then chance of rain showers and slight chance of thunderstorms
overnight. waves 7 to 10 ft occasionally to 13 ft. 
.tuesday...southwest winds to 30 kt becoming west 10 to 20 kt.
waves 5 to 8 ft occasionally to 10 ft subsiding to 3 to 5 ft. 
.tuesday night...northwest winds 10 to 20 kt becoming north 5 to
10 kt overnight. waves 1 to 3 ft subsiding to 1 to 2 ft. 
.wednesday...north winds 10 to 15 kt becoming northwest 10 to
20 kt. waves 1 to 3 ft. 
.wednesday night...north winds 10 to 15 kt diminishing to 5 to
10 kt. waves 1 to 2 ft. 
.thursday...north winds 10 to 15 kt increasing to 10 to 20 kt.
waves 1 to 2 ft. 
.friday...north winds 10 to 20 kt. waves 1 to 3 ft.  

$$

fzus63 kmkx 271711
glflm 
expires:202604272115;;620398

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
1211 pm cdt mon apr 27 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 of 29.5 inches over western iowa will move northeast
over lake superior by late tonight while deepening to 29.2 
inches. southeasterly winds will increase throughout today to gust
around 30 kt throughout the afternoon and early overnight hours. 
although the cooler lake temps should dampen the threat for 
widespread gales across the lake, thunderstorms during the 
afternoon and evening may produce multiple periods of gale force 
gusts in the southern half. trends will be monitored into the 
afternoon regarding the wind threat within the storms and 
regarding potential for gales outside of these storms. a cold
front passage will shift winds to the west early tuesday morning,
and remain gusty through tuesday afternoon.

high pressure around 30.1 inches will set up over the upper
midwest and upper great lakes tuesday through friday, producing
light and variable winds.


lmz080-669-671-673-675-777-779-870-872-874-876-878-272115-
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-
1211 pm cdt mon apr 27 2026

sheboygan wi to pentwater mi south...

...gale warning in effect until 7 pm cdt this evening...

.rest of today...southeast winds to 30 kt. chance of rain showers
and slight chance of thunderstorms. waves 6 to 9 ft occasionally
to 12 ft. 
.tonight...south winds to 30 kt veering to southwest 15 to 25 kt.
chance of rain showers and thunderstorms in the evening, then
chance of rain showers and slight chance of thunderstorms
overnight. waves 7 to 10 ft occasionally to 13 ft. 
.tuesday...west winds to 30 kt diminishing to 10 to 15 kt. waves
4 to 7 ft occasionally to 9 ft subsiding to 2 to 4 ft. 
.tuesday night...northwest winds 10 to 15 kt becoming north.
waves 1 to 3 ft subsiding to 1 to 2 ft. 
.wednesday...north winds 10 to 20 kt. waves 1 to 3 ft building to
2 to 4 ft. 
.wednesday night...northwest winds 10 to 20 kt diminishing to
5 to 10 kt. waves 2 to 4 ft subsiding to 1 to 3 ft. 
.thursday...northwest winds 10 to 15 kt becoming north. waves
1 to 2 ft. 
.friday...north winds 10 to 20 kt increasing to 15 to 25 kt.
waves 1 to 3 ft building to 3 to 5 ft.  

$$