Widespread Summer Heat; Enhanced Severe Weather

A large ridge of high pressure continues to deliver summer heat w/ humidity in several sections of the country. Excessive heat warnings and heat advisories are in effect across the Desert Southwest, south-central Plains, Mid to Lower Mississippi Valley and a small part of the Mid-Atlantic. Meanwhile, an enhanced risk of organized severe thunderstorms is possible from Iowa to Illinois and Indiana. Read More >

LOADING...

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

1028 AM EDT Mon Aug 19 2019 The water temperature off Buffalo is 74 degrees.

1028 AM EDT Mon Aug 19 2019 The water temperature off Rochester is 43 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

044
FZUS51 KBUF 201034
NSHBUF

Nearshore Marine Forecast
National Weather Service Buffalo NY
634 AM EDT Tue Aug 20 2019

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.

LEZ020-201515-
Upper Niagara River and Buffalo Harbor-
634 AM EDT Tue Aug 20 2019

.TODAY...Light and variable winds. Sunny.
.TONIGHT...Light and variable winds. Mainly clear in the evening,
then becoming partly cloudy.
.WEDNESDAY...Southwest winds 10 knots or less increasing to 10 to
15 knots. A chance of showers and thunderstorms in the morning,
then showers and thunderstorms likely in the afternoon. Some
thunderstorms may produce gusty winds in the afternoon.
.WEDNESDAY NIGHT...West winds around 10 knots becoming northwest.
A chance of showers and thunderstorms in the evening, then a
chance of showers overnight.
.THURSDAY...Northwest winds 10 knots or less. Partly cloudy.
.FRIDAY...Northwest winds 10 knots or less becoming north.
Becoming mainly clear.
.SATURDAY...Northeast winds 10 knots or less becoming east.
Mainly clear.

Winds and waves higher in and near thunderstorms.

The water temperature off Buffalo is 74 degrees.

$$

LOZ030-201515-
Lower Niagara River-
634 AM EDT Tue Aug 20 2019

.TODAY...Light and variable winds. Sunny.
.TONIGHT...Light and variable winds. Mainly clear in the evening,
then becoming mostly cloudy.
.WEDNESDAY...Southwest winds 10 knots or less increasing to 10 to
15 knots. A chance of showers and thunderstorms in the morning,
then showers and thunderstorms likely in the afternoon. Some
thunderstorms may produce gusty winds in the afternoon.
.WEDNESDAY NIGHT...West winds around 10 knots becoming northwest.
A chance of showers and thunderstorms in the evening, then a
chance of showers overnight.
.THURSDAY...Northwest winds 5 to 10 knots. Partly cloudy.
.FRIDAY...Northwest winds 10 knots or less becoming north. Mainly
clear.
.SATURDAY...Northeast winds 5 to 10 knots becoming east. Mainly
clear.

Winds and waves higher in and near thunderstorms.

$$

LEZ040-041-201515-
Buffalo to Ripley along Lake Erie-
634 AM EDT Tue Aug 20 2019

.TODAY...Southeast winds less than 10 knots becoming northwest.
Sunny. Waves 1 foot or less.
.TONIGHT...East winds 10 knots or less becoming south. A chance
of showers overnight. Waves 1 foot or less.
.WEDNESDAY...Southwest winds 5 to 15 knots becoming west. A
chance of showers and thunderstorms in the morning, then showers
and thunderstorms likely in the afternoon. Some thunderstorms may
produce gusty winds in the afternoon. Waves 1 to 3 feet.
.WEDNESDAY NIGHT...West winds 10 to 15 knots becoming northwest.
A chance of showers and thunderstorms in the evening, then a
chance of showers overnight. Waves 1 to 3 feet building to 2 to
4 feet.
.THURSDAY...Northwest winds 5 to 15 knots becoming north. Partly
cloudy. Waves 1 to 3 feet.
.FRIDAY...North winds 10 knots or less becoming northeast.
Becoming mainly clear. Waves 2 feet or less.
.SATURDAY...Northeast winds 5 to 10 knots becoming east. Mainly
clear. Waves 1 foot or less.

Winds and waves higher in and near thunderstorms.

$$

LOZ042-201515-
Niagara River to Hamlin Beach along Lake Ontario-
634 AM EDT Tue Aug 20 2019

.TODAY...South winds 10 knots or less becoming east. Sunny. Waves
1 foot or less.
.TONIGHT...East winds 10 knots or less becoming south. A chance
of showers overnight. Waves 1 foot or less.
.WEDNESDAY...Light and variable winds becoming southwest 10 to
15 knots. A chance of showers and thunderstorms in the morning,
then showers and thunderstorms likely in the afternoon. Some
thunderstorms may produce gusty winds in the afternoon. Waves
2 feet or less.
.WEDNESDAY NIGHT...West winds 10 to 15 knots becoming northwest
15 to 20 knots. A chance of showers and thunderstorms in the
evening, then a chance of showers overnight. Waves 1 to 3 feet
building to 3 to 5 feet. Waves occasionally around 6 feet.
.THURSDAY...Northwest winds 15 to 20 knots diminishing to 10 to
15 knots. Partly cloudy. Waves 3 to 5 feet subsiding to 1 to
3 feet. Waves occasionally around 6 feet.
.FRIDAY...Northwest winds 5 to 10 knots becoming north. Mainly
clear. Waves 1 to 2 feet.
.SATURDAY...North winds 10 knots or less becoming east. Mainly
clear. Waves 1 foot or less.

Winds and waves higher in and near thunderstorms.

$$

LOZ043-044-201515-
Hamlin Beach to Mexico Bay along Lake Ontario
including Irondequoit Bay-
634 AM EDT Tue Aug 20 2019

.TODAY...Light and variable winds becoming east 5 to 10 knots.
Sunny. Waves 1 foot or less.
.TONIGHT...East winds 5 to 10 knots becoming south. A chance of
showers overnight. Waves 1 foot or less.
.WEDNESDAY...South winds 10 knots or less becoming southwest.
Showers and thunderstorms likely. Some thunderstorms may produce
gusty winds. Waves 1 foot or less.
.WEDNESDAY NIGHT...Southwest winds 10 to 15 knots becoming
northwest 15 to 20 knots. Showers and thunderstorms likely in the
evening, then a chance of showers overnight. Some thunderstorms
may produce gusty winds in the evening. Waves 1 to 3 feet
building to 3 to 5 feet. Waves occasionally around 6 feet.
.THURSDAY...West winds 15 to 20 knots becoming northwest 10 to
15 knots. A chance of showers during the day. Waves 3 to 6 feet
subsiding to 2 to 4 feet. Waves occasionally around 7 feet.
.FRIDAY...Northwest winds 5 to 10 knots. Becoming mainly clear.
Waves 1 to 3 feet.
.SATURDAY...North winds 10 knots or less becoming east. Mainly
clear. Waves 2 feet or less.

Winds and waves higher in and near thunderstorms.

The water temperature off Rochester is 43 degrees.

$$

LOZ045-201515-
Mexico Bay to the Saint Lawrence River along Lake Ontario-
634 AM EDT Tue Aug 20 2019

.TODAY...Southwest winds 10 knots or less. Sunny. Waves 1 foot or
less.
.TONIGHT...South winds 10 knots or less. Mainly clear in the
evening, then becoming partly cloudy. Waves 1 foot or less.
.WEDNESDAY...South winds 5 to 10 knots becoming southwest. A
chance of showers and thunderstorms in the morning, then showers
and thunderstorms likely in the afternoon. Some thunderstorms may
produce gusty winds in the afternoon. Waves 1 foot or less.
.WEDNESDAY NIGHT...Southwest winds 5 to 15 knots becoming west.
Showers and thunderstorms likely in the evening, then a chance of
showers overnight. Some thunderstorms may produce gusty winds in
the evening. Waves 1 to 3 feet building to 2 to 4 feet.
.THURSDAY...West winds 5 to 15 knots becoming northwest. A chance
of showers during the day. Waves 2 to 4 feet building to 3 to
5 feet, then subsiding to 2 to 4 feet. Waves occasionally around
6 feet.
.FRIDAY...Northwest winds 5 to 10 knots becoming north. Partly
cloudy. Waves 2 feet or less.
.SATURDAY...North winds 5 to 10 knots becoming east. Mainly
clear. Waves 1 foot or less.

Winds and waves higher in and near thunderstorms.

$$

Radar