River Levels Streamgages Weather

Total streamflow across the Cowanesque River was last observed at 108 cfs, and is expected to yield approximately 214 acre-ft of water today; about 41% of normal. River levels are low and may signify a drought. Average streamflow for this time of year is 260 cfs, with recent peaks last observed on 2021-08-19 when daily discharge volume was observed at 34,470 cfs.

Maximum discharge along the river is currently at the Cowanesque River At Elkland reporting a streamflow rate of 45.2 cfs. This is also the highest stage along the Cowanesque River, with a gauge stage of 15.57 ft at this location. This river is monitored from 3 different streamgauging stations along the Cowanesque River, the highest being situated at an altitude of 1,338 ft, the Cowanesque River At Westfield.

The Cowanesque River is a 47-mile-long tributary of the Tioga River in Pennsylvania and New York. It flows through the cities of Westfield, Knoxville, and Lawrenceville. The river is named after the Cowanesque Native American tribe that inhabited the area in the past. The Cowanesque River is known for its hydroelectric power generation, with three hydroelectric dams and reservoirs along its course, namely the Cowanesque Lake, Hammond Lake, and Tioga-Hammond Lakes. These reservoirs and dams help regulate the river's flow and provide flood control. The Cowanesque River is also a popular destination for recreational activities such as fishing, kayaking, and camping. The surrounding lands are utilized for agriculture, including dairy farming, crop cultivation, and grazing.

Heat Advisory
Until 2024-07-14T06:00:00-06:00 National Weather Service
* WHAT...High temperatures of 100 to 104 each afternoon. * WHERE...Fort Collins, Longmont, Boulder, Denver and suburbs, and Greeley. * WHEN...The most extreme temperatures will occur between 10 am and 8 pm each day. * IMPACTS...Hot temperatures may cause heat illnesses.

July 13, 2024







Last Updated 2024-07-13
Discharge Volume 214 ACRE-FT
Streamflow 107.8 cfs
-24.6 cfs (-18.58%)
Percent of Normal 41.47%
Maximum 34,470.0 cfs
Seasonal Avg 260 cfs
Streamgauge Streamflow Gauge Stage 24hr Change (%) % Normal Minimum (cfs) Maximum (cfs) Air Temp Elevation
Cowanesque River At Westfield
USGS 01518862
24 cfs 0.06 ft -2.8
Cowanesque River At Elkland
USGS 01519200
45 cfs 15.57 ft -2.8
Cowanesque River Near Lawrenceville
USGS 01520000
38 cfs 7.32 ft -37.11

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Historical River Levels

The Cowanesque River is a 41.4-mile-long (66.6 km) tributary of the Tioga River in Potter and Tioga counties, Pennsylvania, and Steuben County, New York, in the United States. It joins the Tioga River soon after crossing from Pennsylvania into New York, near the borough of Lawrenceville, Pennsylvania.The name of the Cowanesque River is of Native American origin, derived either from Go-wan-is-que ("briary or thorn bushy"), or from Ka-hwe-nes-ka ("on the long island").In Tioga County, the Cowanesque Dam was constructed by the US Army Corps of Engineers in 1980. The dam created Cowanesque Lake, which helps prevent flooding within the valley. The 1,085-acre (4.39 km2) lake also facilitates various forms of recreation; the Tompkins Recreation Area and Campground is located along the lake's north shore, and the south shore hosts two day-use areas.

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16-Day Weather Forecast

Regional Streamflow


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