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nearshore marine forecast
national weather service buffalo ny
1004 pm edt wed may 20 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-loz030-210900-
upper niagara river and buffalo harbor-lower niagara river-
1004 pm edt wed may 20 2026

.overnight...north winds 5 to 10 knots becoming northeast.
mostly cloudy. 
.thursday...northeast winds 5 to 10 knots. mostly sunny. 
.thursday night...northeast winds 10 knots or less becoming east.
becoming mainly clear. 
.friday...east winds 5 to 15 knots becoming northeast. mostly
sunny in the morning, then becoming partly sunny. 
.friday night...east winds 5 to 15 knots. showers likely
overnight. 
.saturday...east winds 5 to 15 knots becoming southeast. showers
with a chance of thunderstorms. 
.sunday...south winds 10 knots or less. a chance of showers. 
.monday...southwest winds less than 10 knots. a chance of showers
during the day. 

winds and waves higher in and near thunderstorms.

the water temperature off buffalo is 55 degrees.

$$

fzus51 kbuf 210204
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nearshore marine forecast
national weather service buffalo ny
1004 pm edt wed may 20 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.


loz042-210900-
niagara river to hamlin beach along lake ontario-
1004 pm edt wed may 20 2026

.overnight...northwest winds 10 to 15 knots becoming
northeast 15 to 20 knots. mostly cloudy. waves 1 to 3 feet. 
.thursday...northeast winds 15 to 20 knots becoming east 5 to
15 knots. mostly sunny. waves 1 to 3 feet. 
.thursday night...east winds 10 knots or less. becoming mainly
clear. waves 1 foot or less. 
.friday...east winds 5 to 10 knots increasing to 15 to 20 knots.
mostly sunny in the morning, then becoming partly sunny. waves
1 foot or less building to 2 to 4 feet. 
.friday night...east winds 15 to 20 knots diminishing to 10 to
15 knots. showers likely overnight. waves 2 to 4 feet subsiding
to 1 to 3 feet. 
.saturday...east winds 15 to 25 knots becoming southeast.
showers. waves 3 to 6 feet subsiding to 2 to 4 feet. waves
occasionally around 7 feet. 
.sunday...southeast winds 5 to 15 knots becoming south. showers
likely during the day, then a chance of showers sunday night.
waves 1 to 3 feet subsiding to 1 foot or less. 
.monday...southwest winds 10 knots or less becoming west. a
chance of showers during the day. waves 1 foot or less. 

$$

fzus53 kdtx 210149
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nearshore marine forecast for michigan
national weather service detroit/pontiac mi
949 pm edt wed may 20 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.


lhz441-211000-
port austin to harbor beach mi-
949 pm edt wed may 20 2026

...small craft advisory in effect until midnight edt tonight...

.rest of tonight...north winds 10 to 15 knots. mostly clear.
waves 2 to 4 feet. 
.thursday...northeast winds 10 to 15 knots. mostly sunny. waves
2 to 4 feet. 
.thursday night...northeast winds 10 to 15 knots. mostly cloudy
early in the evening becoming partly cloudy. waves 1 to 3 feet. 
.friday...east winds 10 to 15 knots. partly cloudy. waves 1 to
3 feet. 

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

$$

fzus53 kdtx 210149
nshdtx
expires:202605211000;;375567

nearshore marine forecast for michigan
national weather service detroit/pontiac mi
949 pm edt wed may 20 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.


lhz442-211000-
harbor beach to port sanilac mi-
949 pm edt wed may 20 2026

.rest of tonight...north winds 5 to 10 knots increasing to 10 to
15 knots after midnight. partly cloudy. waves 2 to 4 feet. 
.thursday...northeast winds 10 to 15 knots. sunny. waves 1 to
3 feet. 
.thursday night...north winds 15 to 20 knots becoming northeast
10 to 15 knots in the late evening and overnight. partly cloudy.
waves 2 to 4 feet subsiding to 1 to 3 feet after midnight. 
.friday...east winds 10 to 15 knots. partly cloudy until late
afternoon becoming mostly cloudy. waves 2 to 4 feet. 

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

$$

fzus53 kdtx 210149
nshdtx
expires:202605211000;;375568

nearshore marine forecast for michigan
national weather service detroit/pontiac mi
949 pm edt wed may 20 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.


lhz443-211000-
port sanilac to port huron mi-
949 pm edt wed may 20 2026

.rest of tonight...north winds 10 to 15 knots. mostly cloudy this
evening then clearing. waves 1 to 3 feet. 
.thursday...northeast winds 10 to 15 knots becoming north 15 to
20 knots early in the afternoon. sunny. waves 1 to 3 feet. 
.thursday night...north winds 15 to 20 knots becoming northeast
10 to 15 knots in the late evening and overnight. partly cloudy.
waves 2 to 4 feet subsiding to 1 to 3 feet after midnight. 
.friday...east winds 15 to 20 knots. partly cloudy until late
afternoon becoming mostly cloudy. waves 2 to 4 feet. 

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

$$