Prolonged Atmospheric River in the Pacific Northwest; Snow and High Winds in the North-Central U.S.

A prolonged atmospheric river will continue impacting the Pacific Northwest with heavy rainfall which has lead to areas of urban and river flooding along with gusty winds into Thursday. A clipper will bring heavy snow, some mixed wintry precipitation, and gusty to high winds across the northern Plains, Upper Midwest, and the Great Lakes into Thursday morning. Read More >

Lake Erie

The reported Lake Erie water temperature is taken at the Buffalo Water Treatment Plant located on Lake Erie at the entrance to the Niagara River. The reading is taken at a depth of 30 feet. This data is unofficial.

Lake Ontario

The reported Lake Ontario water temperature is taken at the Monroe County Water Treatment Plant near Greece, N.Y. The temperatures is measured at the intake pipes about 1500 feet offshore at a approximate depth of 35 feet. The Lake Ontario temperature occasionally may not be representative of the surface temperature due to upwelling. This process, more common during the summer months, brings colder water from the deeper parts of the lake toward the surface near the temperature sensor. The surface water may be significantly warmer. This data is unofficial.

Latest Lake Temperatures

1003 AM EST Tue Dec 9 2025 The water temperature off Buffalo is 39 degrees.

1003 AM EST Tue Dec 9 2025 The water temperature off Rochester is 44 degrees.

Monthly Lake Erie Temperatures
January	February	March	April	May	June	July	August	September	October	November	December

Historical Lake Erie Temperatures (Unofficial Normals and Extremes)

The daily lake temperatures for Lake Erie off Buffalo and for Lake Ontario off Rochester are included in the Nearshore Marine Forecast.

Click the link for previous versions of the Nearshore Marine Forecast.

NearShore Marine Forecast

429
FZUS51 KBUF 091503
NSHBUF

Nearshore Marine Forecast
National Weather Service Buffalo NY
1003 AM EST Tue Dec 9 2025

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.

LEZ020-092200-
Upper Niagara River and Buffalo Harbor-
1003 AM EST Tue Dec 9 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE WEDNESDAY NIGHT...

.REST OF TODAY...South winds 10 to 15 knots increasing to 15 to
20 knots. A chance of snow showers early this afternoon. Snow
showers likely late.
.TONIGHT...Southwest winds 15 to 25 knots becoming south. Lake
effect snow showers in the evening, then lake effect snow with a
chance of lake effect rain overnight.
.WEDNESDAY...South winds 15 to 20 knots becoming west. Rain and
snow.
.WEDNESDAY NIGHT...West winds 15 to 20 knots diminishing to 10 to
15 knots. Snow and rain in the evening, then snow showers likely
overnight.
.THURSDAY...West winds 5 to 15 knots. Snow showers likely during
the day, then a chance of snow showers Thursday night.
.FRIDAY...West winds 5 to 15 knots becoming southwest. A chance
of snow showers during the day, then snow showers likely Friday
night.
.SATURDAY...West winds 5 to 15 knots. Snow showers likely.

The water temperature off Buffalo is 39 degrees.

$$

LOZ030-092200-
Lower Niagara River-
1003 AM EST Tue Dec 9 2025

.REST OF TODAY...South winds 10 to 15 knots increasing to 15 to
20 knots. A chance of snow showers early this afternoon. Snow
showers likely late.
.TONIGHT...Southwest winds 15 to 20 knots becoming south 10 to
15 knots. Lake effect snow showers in the evening, then snow with
a chance of rain overnight.
.WEDNESDAY...South winds 10 to 15 knots becoming west. Rain and
snow.
.WEDNESDAY NIGHT...Northwest winds 10 to 15 knots becoming west.
Snow and rain in the evening, then a chance of snow showers
overnight.
.THURSDAY...West winds 5 to 15 knots. A chance of snow showers.
.FRIDAY...West winds 5 to 10 knots becoming southwest. A chance
of snow showers during the day, then snow showers likely Friday
night.
.SATURDAY...West winds 5 to 15 knots. Snow showers likely during
the day, then a chance of snow showers Saturday night.

$$

LEZ040-041-092200-
Buffalo to Ripley along Lake Erie-
1003 AM EST Tue Dec 9 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT...
...GALE WARNING IN EFFECT FROM LATE TONIGHT THROUGH WEDNESDAY
EVENING...

.REST OF TODAY...South winds 15 to 25 knots increasing to
30 knots. Snow showers likely this afternoon. Waves 1 to 3 feet
building to 4 to 7 feet. Waves occasionally around 9 feet.
.TONIGHT...Southwest winds to 30 knots becoming south 15 to
25 knots. Snow showers likely in the evening, then snow and rain
overnight. Waves 5 to 9 feet subsiding to 4 to 7 feet. Waves
occasionally around 11 feet.
.WEDNESDAY...South winds to 30 knots becoming west and increasing
to 35 knot gales in the afternoon. Rain and snow. Waves 5 to
8 feet building to 9 to 13 feet. Waves occasionally around
16 feet.
.WEDNESDAY NIGHT...West winds to 30 knots diminishing to 15 to
25 knots. Snow showers and rain in the evening, then snow showers
overnight. Waves 9 to 12 feet subsiding to 3 to 6 feet. Waves
occasionally around 15 feet.
.THURSDAY...West winds 15 to 25 knots. Snow showers likely. Waves
5 to 8 feet subsiding to 3 to 5 feet. Waves occasionally around
10 feet.
.FRIDAY...West winds 10 to 15 knots becoming southwest and
increasing to 15 to 25 knots. Snow showers. Waves 2 to 4 feet
building to 4 to 7 feet. Waves occasionally around 9 feet.
.SATURDAY...West winds 15 to 25 knots. Snow showers. Waves 5 to
9 feet subsiding to 3 to 6 feet. Waves occasionally around
11 feet.

$$

LOZ042-092200-
Niagara River to Hamlin Beach along Lake Ontario-
1003 AM EST Tue Dec 9 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 3 PM EST THIS AFTERNOON
THROUGH FRIDAY MORNING...

.REST OF TODAY...South winds 10 to 15 knots increasing to 15 to
20 knots. A chance of snow showers early this afternoon. Snow
showers likely late. Waves 1 to 3 feet building to 2 to 4 feet.
.TONIGHT...Southwest winds 15 to 25 knots becoming south. Lake
effect snow showers in the evening, then snow with a chance of
rain overnight. Waves 3 to 6 feet subsiding to 2 to 4 feet. Waves
occasionally around 7 feet.
.WEDNESDAY...South winds 15 to 25 knots becoming west. Rain and
snow in the morning, then rain in the afternoon. Waves 1 to
3 feet building to 3 to 6 feet. Waves occasionally around 7 feet.
.WEDNESDAY NIGHT...Northwest winds 15 to 25 knots becoming west.
Snow showers likely with rain in the evening, then snow showers
likely overnight. Waves 4 to 7 feet. Waves occasionally around
9 feet.
.THURSDAY...West winds 15 to 25 knots. A chance of snow showers.
Waves 5 to 8 feet subsiding to 3 to 6 feet. Waves occasionally
around 10 feet.
.FRIDAY...West winds 15 to 20 knots becoming southwest. A chance
of snow showers during the day, then snow showers likely Friday
night. Waves 3 to 5 feet subsiding to 2 to 4 feet. Waves
occasionally around 6 feet.
.SATURDAY...West winds 15 to 25 knots. Snow showers likely during
the day, then a chance of snow showers Saturday night. Waves 4 to
7 feet subsiding to 3 to 5 feet. Waves occasionally around
9 feet.

$$

LOZ043-092200-
Hamlin Beach to Sodus Bay along Lake Ontario
including Irondequoit Bay-
1003 AM EST Tue Dec 9 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 9 PM EST THIS EVENING
THROUGH SATURDAY AFTERNOON...

.REST OF TODAY...South winds 10 to 15 knots increasing to 15 to
20 knots. Snow showers likely late. Waves 2 feet or less.
.TONIGHT...South winds 15 to 20 knots. A chance of snow in the
evening, then snow likely with a chance of rain overnight. Waves
1 to 3 feet.
.WEDNESDAY...South winds 15 to 20 knots becoming southwest. Rain
and snow in the morning, then rain in the afternoon. Waves 1 to
3 feet building to 2 to 4 feet.
.WEDNESDAY NIGHT...West winds 15 to 25 knots. Snow showers likely
with rain in the evening, then snow showers likely overnight.
Waves 3 to 6 feet building to 5 to 9 feet. Waves occasionally
around 11 feet.
.THURSDAY...West winds to 30 knots diminishing to 15 to 25 knots.
Snow showers. Waves 6 to 10 feet subsiding to 4 to 7 feet. Waves
occasionally around 13 feet.
.FRIDAY...West winds 15 to 20 knots becoming southwest. Snow
showers likely. Waves 3 to 6 feet subsiding to 1 to 3 feet. Waves
occasionally around 7 feet.
.SATURDAY...Southwest winds 15 to 25 knots becoming west. Snow
showers likely during the day, then a chance of snow showers
Saturday night. Waves 3 to 6 feet building to 4 to 7 feet, then
subsiding to 3 to 6 feet. Waves occasionally around 9 feet.

The water temperature off Rochester is 44 degrees.

$$

LOZ044-092200-
Sodus Bay to Mexico Bay along Lake Ontario-
1003 AM EST Tue Dec 9 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 9 PM EST THIS EVENING
THROUGH SATURDAY AFTERNOON...

.REST OF TODAY...South winds 10 to 15 knots increasing to 15 to
20 knots. Snow showers likely late. Waves 1 to 3 feet.
.TONIGHT...South winds 15 to 25 knots. A chance of snow in the
evening, then snow likely overnight. Waves 2 to 4 feet subsiding
to 1 to 3 feet.
.WEDNESDAY...South winds 15 to 25 knots becoming southwest. Snow
and rain. Waves 1 to 3 feet building to 2 to 4 feet.
.WEDNESDAY NIGHT...Southwest winds 15 to 25 knots becoming
northwest. Snow showers and rain in the evening, then snow
showers overnight. Waves 4 to 7 feet building to 6 to 9 feet.
Waves occasionally around 11 feet.
.THURSDAY...West winds to 30 knots becoming northwest 15 to
25 knots. Snow showers. Waves 7 to 10 feet subsiding to 5 to
8 feet. Waves occasionally around 13 feet.
.FRIDAY...West winds 15 to 20 knots becoming southwest. Snow
showers likely. Waves 4 to 7 feet subsiding to 1 to 3 feet. Waves
occasionally around 9 feet.
.SATURDAY...Southwest winds 15 to 25 knots becoming west. Snow
showers. Waves 3 to 6 feet building to 7 to 10 feet, then
subsiding to 5 to 8 feet. Waves occasionally around 13 feet.

$$

LOZ045-092200-
Mexico Bay to the Saint Lawrence River along Lake Ontario-
1003 AM EST Tue Dec 9 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 9 PM EST THIS EVENING
THROUGH SATURDAY AFTERNOON...

.REST OF TODAY...South winds 15 to 25 knots. A chance of snow
showers late this morning. Snow showers likely late. Waves 2 to
4 feet building to 3 to 6 feet. Waves occasionally around 7 feet.
.TONIGHT...South winds to 30 knots diminishing to 15 to 25 knots.
Snow showers likely in the evening, then snow likely overnight.
Waves 5 to 8 feet. Waves occasionally around 10 feet.
.WEDNESDAY...South winds 15 to 25 knots becoming southwest. Snow
and rain. Waves 3 to 6 feet. Waves occasionally around 7 feet.
.WEDNESDAY NIGHT...Southwest winds 15 to 25 knots becoming west.
Snow showers and rain in the evening, then snow showers
overnight. Waves 5 to 8 feet. Waves occasionally around 10 feet.
.THURSDAY...West winds to 30 knots becoming northwest and
diminishing to 15 to 20 knots. Snow showers likely. Waves 6 to
10 feet subsiding to 4 to 7 feet. Waves occasionally around
13 feet.
.FRIDAY...West winds 15 to 20 knots becoming southwest 10 to
15 knots. A chance of snow showers during the day, then snow
showers likely Friday night. Waves 3 to 6 feet subsiding to 2 to
4 feet. Waves occasionally around 7 feet.
.SATURDAY...Southwest winds 15 to 25 knots becoming west. Snow
showers. Waves 4 to 7 feet building to 5 to 9 feet. Waves
occasionally around 11 feet.

$$

Radar