Tioga HUC8 02050104
A 3,585 km² sub-basin of the Mid-Atlantic region in NY, PA. Drought coverage is from the US Drought Monitor (map of 2026-10-13); streamflow classes place each USGS gauge's latest reading against its own day-of-year record.
Health score
81
Healthy
Drought index
12
Abnormally dry
Area in D2+
0%
0% exceptional (D4)
Gauges below normal
0%
of 12 reporting
Median flow
112%
p52 of record
Water assets
1,297
10 springs · 996 wells
USGS gauges (15)
- TIOGA RIVER NEAR ERWINS NY01526500187 cfsp34 · normal
- Cowanesque River near Lawrenceville, PA0152000031 cfsp38 · normal
- CANISTEO RIVER BELOW CANACADEA CREEK AT HORNELL NY0152450032 cfsp44 · normal
- CANACADEA CREEK NEAR HORNELL NY0152350016 cfsp50 · normal
- Cowanesque River at Westfield, PA0151886215 cfsp51 · normal
- Tioga River near Mansfield, PA0151635061 cfsp52 · normal
- Corey Creek near Mainesburg, PA015165002 cfsp52 · normal
- Tioga River at Tioga Junction, PA01518700108 cfsp53 · normal
- CANISTEO RIVER AT WEST CAMERON NY0152550068 cfsp53 · normal
- Tioga River at Tioga, PA0151800090 cfsp54 · normal
- CANISTEO RIVER AT ARKPORT NY015215007 cfsp56 · normal
- TUSCARORA CREEK ABOVE SOUTH ADDISON NY0152598187 cfsp81 · above normal
- Crooked Cr bl Catlin Hollow at Middlebury Center0151842016 cfsno long-term record
- Cowanesque River at Elkland, PA0151920053 cfsno long-term record
- TIOGA RIVER AT LINDLEY NY0152050059 cfsno long-term record
Recent conditions
| Date | DSCI | D2+ % | Gauges low | Flow pct |
|---|---|---|---|---|
| 2026-10-18 | 12 | 0 | 0/12 | p52 |
| 2026-10-17 | 12 | 0 | 0/12 | p52 |
| 2026-10-16 | 12 | 0 | 0/12 | p41 |
| 2026-10-15 | 0 | 0 | 1/12 | p46 |
| 2026-10-14 | 0 | 0 | 0/12 | p50 |
| 2026-10-13 | 0 | 0 | 0/12 | p55 |
| 2026-10-12 | 0 | 0 | 0/12 | p63 |
| 2026-10-11 | 0 | 0 | 0/12 | p38 |
| 2026-10-10 | 0 | 0 | 1/12 | p37 |
| 2026-10-09 | 0 | 0 | 1/12 | p34 |
| 2026-10-08 | 0 | 0 | 0/12 | p33 |
| 2026-10-07 | 0 | 0 | 0/12 | p37 |
| 2026-10-06 | 0 | 0 | 0/12 | p44 |
| 2026-10-05 | 0 | 0 | 0/12 | p45 |
Top water assets
- 67Arkport Damreservoir
- 67Hammond Damreservoir
- 67Tioga Damreservoir
- 67Cowanesque Damreservoir
- 66Almond Damreservoir
- 65Canisteo River At Arkport Nyriver
- 65Corey Creek Near Mainesburg, Pariver
- 65Tioga River At Lindley Nyriver
- 65Canisteo River At West Cameron Nyriver
- 65Clayton Herrington Pond Dams A & Breservoir