National Weather Service United States Department of Commerce

Heavy Rainfall and Flash Flood Threat for the Southern Plains Today; Severe Thunderstorms from the Northeast to the Ohio Valley

Heavy rains are leading to an elevated concern for flash flooding across parts of Oklahoma and Texas today, and this heavy rainfall will spread slowly east over the weekend. Severe thunderstorms may produce damaging winds and a few tornadoes across parts of the Northeast and Ohio Valley this afternoon and evening. Significant river flooding continues across the Carolinas. 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
 
1039 AM EDT Fri Sep 21 2018 The water temperature off Buffalo is 72 degrees.
 

1039 AM EDT Fri Sep 21 2018 The water temperature off Rochester is 58 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


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FZUS51 KBUF 211439
NSHBUF

Nearshore Marine Forecast
National Weather Service Buffalo NY
1039 AM EDT Fri Sep 21 2018

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.

LEZ020-212115-
Upper Niagara River and Buffalo Harbor-
1039 AM EDT Fri Sep 21 2018

...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING...

.REST OF TODAY...Southwest winds 15 to 25 knots increasing to
30 knots. A chance of showers late this morning. A chance of
showers late.
.TONIGHT...Southwest winds 15 to 25 knots becoming northwest and
diminishing to 10 to 15 knots. Showers likely in the evening.
.SATURDAY...North winds 5 to 15 knots becoming northeast less
than 10 knots. Mostly cloudy in the morning, then becoming partly
sunny.
.SATURDAY NIGHT...Light and variable winds. Mainly clear.
.SUNDAY...Light and variable winds becoming east 5 to 10 knots.
Mainly clear.
.MONDAY...East winds 5 to 15 knots becoming south. A chance of
showers Monday night.
.TUESDAY...South winds 10 to 15 knots becoming southwest 5 to
10 knots. A chance of showers during the day, then showers likely
Tuesday night.

The water temperature off Buffalo is 72 degrees.

$$

LOZ030-212115-
Lower Niagara River-
1039 AM EDT Fri Sep 21 2018

...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING...

.REST OF TODAY...Southwest winds 15 to 25 knots increasing to
30 knots. A chance of showers late.
.TONIGHT...Southwest winds 15 to 25 knots becoming northwest.
Showers and scattered thunderstorms in the evening. Some
thunderstorms may produce gusty winds in the evening.
.SATURDAY...North winds 10 to 15 knots becoming northeast less
than 10 knots. Mostly cloudy in the morning, then becoming partly
sunny.
.SATURDAY NIGHT...Light and variable winds. Mainly clear.
.SUNDAY...Light and variable winds becoming east 5 to 10 knots.
Mainly clear.
.MONDAY...East winds 5 to 15 knots becoming south. A chance of
showers Monday night.
.TUESDAY...South winds 10 to 15 knots becoming west 5 to 10
knots. A chance of showers during the day, then showers likely
Tuesday night.

Winds and waves higher in and near thunderstorms.

$$

LEZ040-041-212115-
Buffalo to Ripley along Lake Erie-
1039 AM EDT Fri Sep 21 2018

...SMALL CRAFT ADVISORY IN EFFECT THROUGH SATURDAY MORNING...

.REST OF TODAY...South winds 15 to 25 knots becoming southwest.
Showers likely late. Waves 2 to 4 feet building to 3 to 6 feet.
Waves occasionally around 7 feet.
.TONIGHT...Southwest winds 15 to 25 knots becoming northwest.
Showers and scattered thunderstorms in the evening. Some
thunderstorms may produce gusty winds in the evening. Waves 4 to
7 feet subsiding to 3 to 5 feet. Waves occasionally around
9 feet.
.SATURDAY...North winds 15 to 20 knots becoming northeast and
diminishing to 5 to 10 knots. Scattered showers in the morning.
Waves 2 to 4 feet subsiding to 1 to 3 feet.
.SATURDAY NIGHT...Northeast winds less than 10 knots. Becoming
mainly clear. Waves 1 foot or less.
.SUNDAY...East winds 5 to 10 knots increasing to 15 to 20 knots.
Mainly clear. Waves 1 foot or less building to 1 to 3 feet.
.MONDAY...Southeast winds 10 to 15 knots becoming south 15 to 20
knots. A chance of showers. Waves 2 feet or less.
.TUESDAY...South winds 15 to 20 knots becoming southwest 10 to
15 knots. A chance of showers during the day, then showers likely
Tuesday night. Waves 1 to 3 feet.

Winds and waves higher in and near thunderstorms.

$$

LOZ042-212115-
Niagara River to Hamlin Beach along Lake Ontario-
1039 AM EDT Fri Sep 21 2018

...SMALL CRAFT ADVISORY IN EFFECT THROUGH SATURDAY AFTERNOON...

.REST OF TODAY...Southwest winds 15 to 25 knots increasing to
30 knots. A chance of showers late this morning. A chance of
showers late. Waves 2 to 4 feet building to 3 to 6 feet. Waves
occasionally around 7 feet.
.TONIGHT...Southwest winds to 30 knots becoming northwest.
Showers and scattered thunderstorms in the evening, then
scattered showers overnight. Some thunderstorms may produce gusty
winds in the evening. Waves 3 to 6 feet building to 5 to 9 feet.
Waves occasionally around 11 feet.
.SATURDAY...North winds 15 to 20 knots becoming northeast 5 to
15 knots. Mostly cloudy in the morning, then becoming partly
sunny. Waves 3 to 6 feet subsiding to 1 to 3 feet. Waves
occasionally around 7 feet.
.SATURDAY NIGHT...Light and variable winds. Mainly clear. Waves
2 feet or less.
.SUNDAY...East winds 10 knots or less increasing to 15 to 20
knots. Mainly clear. Waves 1 foot or less building to 3 to 5 feet.
Waves occasionally around 6 feet.
.MONDAY...East winds 15 to 20 knots becoming south 10 to 15
knots. A chance of showers Monday night. Waves 3 to 5 feet
subsiding to 1 to 3 feet. Waves occasionally around 6 feet.
.TUESDAY...South winds 15 to 20 knots becoming west 10 to 15
knots. A chance of showers during the day, then showers likely
Tuesday night. Waves 1 to 3 feet.

Winds and waves higher in and near thunderstorms.

$$

LOZ043-212115-
Hamlin Beach to Sodus Bay along Lake Ontario
including Irondequoit Bay-
1039 AM EDT Fri Sep 21 2018

...SMALL CRAFT ADVISORY IN EFFECT THROUGH SATURDAY AFTERNOON...

.REST OF TODAY...Southwest winds 15 to 25 knots. A chance of
showers. Waves 1 to 3 feet building to 3 to 5 feet. Waves
occasionally around 6 feet.
.TONIGHT...Southwest winds to 30 knots becoming northwest.
Showers and scattered thunderstorms in the evening, then a chance
of showers overnight. Some thunderstorms may produce gusty winds
in the evening. Waves 3 to 5 feet building to 7 to 10 feet. Waves
occasionally around 13 feet.
.SATURDAY...North winds 15 to 25 knots diminishing to 5 to 10
knots. Scattered showers in the morning. Waves 5 to 8 feet
subsiding to 2 to 4 feet. Waves occasionally around 10 feet.
.SATURDAY NIGHT...Northwest winds less than 10 knots. Becoming
mainly clear. Waves 2 feet or less.
.SUNDAY...Northeast winds 10 knots or less becoming east and
increasing to 15 to 20 knots. Mainly clear. Waves 1 foot or less
building to 3 to 5 feet. Waves occasionally around 6 feet.
.MONDAY...Southeast winds 10 to 15 knots becoming south 15 to 20
knots. A chance of showers Monday night. Waves 3 to 5 feet
subsiding to 1 to 3 feet. Waves occasionally around 6 feet.
.TUESDAY...South winds 15 to 20 knots becoming southwest. A
chance of showers during the day, then showers likely Tuesday
night. Waves 1 to 3 feet building to 2 to 4 feet, then subsiding
to 1 to 3 feet.

Winds and waves higher in and near thunderstorms.

The water temperature off Rochester is 58 degrees.

$$

LOZ044-212115-
Sodus Bay to Mexico Bay along Lake Ontario-
1039 AM EDT Fri Sep 21 2018

...SMALL CRAFT ADVISORY IN EFFECT THROUGH SATURDAY AFTERNOON...

.REST OF TODAY...South winds 15 to 25 knots. A chance of showers.
Waves 1 to 3 feet building to 2 to 4 feet.
.TONIGHT...South winds to 30 knots becoming northwest. Showers
and scattered thunderstorms in the evening, then a chance of
showers overnight. Some thunderstorms may produce gusty winds in
the evening. Waves 2 to 4 feet building to 8 to 11 feet. Waves
occasionally around 14 feet.
.SATURDAY...North winds 15 to 25 knots diminishing to 5 to 10
knots. Scattered showers in the morning. Waves 5 to 8 feet
subsiding to 2 to 4 feet. Waves occasionally around 10 feet.
.SATURDAY NIGHT...North winds less than 10 knots. Mainly clear.
Waves 2 feet or less.
.SUNDAY...Light and variable winds becoming east 10 to 15 knots.
Mainly clear. Waves 1 foot or less building to 1 to 3 feet.
.MONDAY...Southeast winds 10 to 15 knots becoming south 15 to
20 knots. A chance of showers Monday night. Waves 2 feet or less.
.TUESDAY...South winds 15 to 20 knots becoming southwest. A
chance of showers during the day, then showers likely Tuesday
night. Waves 1 to 3 feet.

Winds and waves higher in and near thunderstorms.

$$

LOZ045-212115-
Mexico Bay to the Saint Lawrence River along Lake Ontario-
1039 AM EDT Fri Sep 21 2018

...SMALL CRAFT ADVISORY IN EFFECT THROUGH SATURDAY MORNING...

.REST OF TODAY...South winds 15 to 20 knots increasing to 30
knots. A chance of showers. Waves 4 to 7 feet. Waves occasionally
around 9 feet.
.TONIGHT...South winds to 30 knots becoming northwest 15 to 25
knots. Showers and scattered thunderstorms in the evening. Some
thunderstorms may produce gusty winds in the evening. Waves 4 to 7
feet building to 7 to 10 feet. Waves occasionally around 13 feet.
.SATURDAY...North winds 15 to 20 knots diminishing to 5 to 15
knots. Becoming mostly sunny. Waves 4 to 7 feet subsiding to 1 to
3 feet. Waves occasionally around 9 feet.
.SATURDAY NIGHT...Northwest winds less than 10 knots becoming
north. Mainly clear. Waves 1 foot or less.
.SUNDAY...Northeast winds 10 knots or less becoming east and
increasing to 15 to 20 knots. Mainly clear, then becoming partly
cloudy. Waves 2 feet or less.
.MONDAY...East winds 5 to 15 knots becoming south 15 to 20 knots.
A chance of showers Monday night. Waves 1 to 3 feet.
.TUESDAY...South winds 15 to 20 knots becoming southwest. A
chance of showers during the day, then showers likely Tuesday
night. Waves 2 to 4 feet building to 3 to 6 feet. Waves
occasionally around 7 feet.

Winds and waves higher in and near thunderstorms.

$$