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nearshore marine forecast
national weather service buffalo ny
1003 pm edt mon may 18 2026

for waters within five nautical miles of shore

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.


lez020-loz030-190900-
upper niagara river and buffalo harbor-lower niagara river-
1003 pm edt mon may 18 2026

.overnight...southwest winds 5 to 10 knots. a chance of
showers late. 
.tuesday...southwest winds 10 to 15 knots increasing to 15 to
20 knots. partly to mostly sunny. 
.tuesday night...southwest winds 10 to 15 knots becoming west.
showers with a chance of thunderstorms. 
.wednesday...northwest winds 5 to 10 knots. showers in the
morning. 
.wednesday night...northwest winds 10 knots or less becoming
north. partly cloudy. 
.thursday...northeast winds 10 knots or less becoming east.
partly cloudy. 
.friday...east winds 5 to 15 knots. showers likely friday night. 
.saturday...east winds 5 to 15 knots becoming southeast. showers
likely during the day, then a chance of showers saturday night. 

winds and waves higher in and near thunderstorms.

the water temperature off buffalo is 52 degrees.

$$

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nearshore marine forecast
national weather service buffalo ny
1003 pm edt mon may 18 2026

for waters within five nautical miles of shore

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.


loz042-190900-
niagara river to hamlin beach along lake ontario-
1003 pm edt mon may 18 2026

.overnight...southwest winds 10 to 15 knots. a chance of
showers late. waves 2 feet or less. 
.tuesday...southwest winds 10 to 15 knots increasing to 15 to
20 knots. partly to mostly sunny. waves 1 to 3 feet building to
2 to 4 feet. 
.tuesday night...southwest winds 15 to 20 knots becoming west.
showers with a chance of thunderstorms in the evening, then
showers likely overnight. waves 3 to 5 feet subsiding to 2 to
4 feet. waves occasionally around 6 feet. 
.wednesday...west winds 15 to 20 knots. showers likely in the
morning. waves 2 to 4 feet subsiding to 1 to 3 feet. 
.wednesday night...northwest winds 5 to 15 knots becoming north.
partly cloudy. waves 1 to 3 feet. 
.thursday...northeast winds 10 knots or less becoming east.
partly cloudy. waves 2 feet or less. 
.friday...east winds 10 to 15 knots increasing to 15 to 20 knots.
showers likely friday night. waves 1 to 3 feet. 
.saturday...east winds 15 to 20 knots diminishing to 10 to
15 knots. showers likely during the day, then a chance of showers
saturday night. waves 2 to 4 feet subsiding to 1 to 3 feet. 

winds and waves higher in and near thunderstorms.

$$

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nearshore marine forecast for michigan
national weather service detroit/pontiac mi
959 pm edt mon may 18 2026

for waters within five nautical miles of shore

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.


lhz441-191000-
port austin to harbor beach mi-
959 pm edt mon may 18 2026

...small craft advisory in effect from tuesday morning through
tuesday evening...

.rest of tonight...south winds 10 to 15 knots becoming southwest
15 to 20 knots early in the morning. mostly cloudy with a slight
chance of showers and thunderstorms this evening, then partly
cloudy 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 cloudy until late afternoon becoming mostly
sunny. a slight chance of showers until late afternoon, then
showers likely and a chance of thunderstorms early in the
afternoon. waves 3 to 5 feet. waves occasionally around 7 feet. 
.tuesday night...west winds 15 to 20 knots veering to the north
in the late evening and early morning, then becoming northwest
10 to 15 knots after midnight. partly cloudy becoming cloudy in
the late evening and early morning becoming partly cloudy. a
chance of showers and thunderstorms early in the evening, then a
chance of showers in the late evening and early morning. waves
2 to 4 feet. 
.wednesday...north winds 10 to 15 knots. partly cloudy early in
the morning then clearing. waves 3 to 5 feet. waves occasionally
around 7 feet. 

see lake huron open lake forecast for days 3 through 5.

$$

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nearshore marine forecast for michigan
national weather service detroit/pontiac mi
959 pm edt mon may 18 2026

for waters within five nautical miles of shore

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.


lhz442-191000-
harbor beach to port sanilac mi-
959 pm edt mon may 18 2026

...small craft advisory in effect from tuesday morning through
tuesday evening...

.rest of tonight...south winds 10 to 15 knots. mostly cloudy with
a slight chance of showers and thunderstorms this evening, then
partly cloudy after midnight. waves 1 to 3 feet. 
.tuesday...southwest winds 15 to 20 knots. gusts to 30 knots in
the late morning and afternoon. mostly cloudy early in the
morning becoming partly cloudy. a slight chance of showers until
late afternoon, then showers likely and a chance of thunderstorms
early in the afternoon. waves 2 to 4 feet. 
.tuesday night...southwest winds 15 to 20 knots veering to the
northwest in the late evening and early morning, then becoming
north 10 to 15 knots after midnight. partly cloudy becoming
mostly cloudy in the late evening and early morning becoming
partly cloudy. a chance of showers and thunderstorms early in the
evening, then a chance of showers in the late evening and early
morning. waves 1 to 3 feet building to 2 to 4 feet after
midnight. 
.wednesday...northwest winds 10 to 15 knots becoming north 15 to
20 knots in the late morning and afternoon. partly cloudy early
in the morning becoming mostly sunny. waves 2 to 4 feet. 

see lake huron open lake forecast for days 3 through 5.

$$

fzus53 kdtx 190159
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nearshore marine forecast for michigan
national weather service detroit/pontiac mi
959 pm edt mon may 18 2026

for waters within five nautical miles of shore

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.


lhz443-191000-
port sanilac to port huron mi-
959 pm edt mon may 18 2026

...small craft advisory in effect from tuesday morning through
tuesday evening...

.rest of tonight...southwest winds 15 to 20 knots becoming south
10 to 15 knots after midnight. mostly cloudy this evening
becoming partly cloudy. waves 1 to 3 feet. 
.tuesday...south winds 15 to 20 knots becoming southwest 20 to
25 knots early in the afternoon. partly cloudy. a slight chance
of showers until late afternoon, then a chance of showers and
thunderstorms early in the afternoon. waves 2 to 4 feet. 
.tuesday night...southwest winds 15 to 20 knots veering to the
north after midnight. partly cloudy early in the evening becoming
mostly cloudy. a chance of showers and thunderstorms until early
morning. waves 1 to 3 feet building to 2 to 4 feet after
midnight. 
.wednesday...north winds 15 to 20 knots. partly cloudy until late
afternoon becoming mostly sunny. waves 2 to 4 feet. 

see lake huron open lake forecast for days 3 through 5.

$$