Obion HUC8 08010202
A 3,407 km² sub-basin of the Lower Mississippi region in KY, TN. Drought coverage is from the US Drought Monitor (map of 2026-09-01); streamflow classes place each USGS gauge's latest reading against its own day-of-year record.
Health score
81
Healthy
Drought index
20
Abnormally dry
Area in D2+
0%
0% exceptional (D4)
Gauges below normal
0%
of 1 reporting
Median flow
97%
p47 of record
Water assets
1,089
0 springs · 746 wells
USGS gauges (2)
- OBION RIVER AT HWY 51 NEAR OBION, TN07026040640 cfsp47 · normal
- RUNNING REELFOOT BAYOU BELOW REELFOOT SPILLWAY070270051,320 cfsno long-term record
Recent conditions
| Date | DSCI | D2+ % | Gauges low | Flow pct |
|---|---|---|---|---|
| 2026-09-07 | 20 | 0 | 0/1 | p47 |
Top water assets
- 65Bogus Creekriver
- 65Running Reelfoot Bayouriver
- 65Running Reelfoot Bayou Below Reelfoot Spillwaylake
- 65Running Reelfoot Bayouriver
- 65Running Sloughriver
- 65Tull Creekriver
- 65Obion River At Hwy 51 Near Obion, Tnriver
- 65North Fork Obion Riverriver
- 65North Fork Obion River Near Martin, Tn (Ce)river
- 65North Fork Obion Riverriver