Summary
Total streamflow across the
Cowanesque River
was last observed at
1,291
cfs, and is expected to yield approximately
2,561
acre-ft of water today; about 171%
of normal.
River levels are high.
Average streamflow for this time of year is
756 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 Near Lawrenceville
reporting a streamflow rate of 618 cfs.
However, the streamgauge with the highest stage along the river is the
Cowanesque River At Elkland
with a gauge stage of 17.42 ft.
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.
15-Day Weather Outlook
River Details
| Last Updated | 2026-03-25 |
| Discharge Volume | 2,561 ACRE-FT |
| Streamflow |
1,291.0 cfs
-772.0 cfs (-37.42%) |
| Percent of Normal | 170.79% |
| Maximum |
34,470.0 cfs
2021-08-19 |
| Seasonal Avg | 756 cfs |
River Streamflow Levels
| Streamgauge | Streamflow | Gauge Stage | 24hr Change (%) | % Normal | Minimum (cfs) | Maximum (cfs) | Air Temp | Elevation |
|---|---|---|---|---|---|---|---|---|
|
Cowanesque River At Westfield
USGS 01518862 |
219 cfs | 1.46 ft | -15.44 | |||||
|
Cowanesque River At Elkland
USGS 01519200 |
454 cfs | 17.42 ft | -24.83 | |||||
|
Cowanesque River Near Lawrenceville
USGS 01520000 |
618 cfs | 8.42 ft | -48.5 |
Seasonal Discharge Comparison
Maximum Streamflow Discharge
Streamflow Elevation Profile
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.