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 2026-10-13); streamflow classes place each USGS gauge's latest reading against its own day-of-year record.
Health score
75
Healthy
Drought index
110
Moderate
Area in D2+
3.26%
0% exceptional (D4)
Gauges below normal
0%
of 1 reporting
Median flow
85%
p35 of record
Water assets
1,089
0 springs · 746 wells
USGS gauges (2)
- OBION RIVER AT HWY 51 NEAR OBION, TN07026040505 cfsp35 · normal
- RUNNING REELFOOT BAYOU BELOW REELFOOT SPILLWAY070270051,320 cfsno long-term record
Recent conditions
| Date | DSCI | D2+ % | Gauges low | Flow pct |
|---|---|---|---|---|
| 2026-10-20 | 110 | 3.26 | 0/1 | p35 |
| 2026-10-19 | 110 | 3.26 | 0/1 | p34 |
| 2026-10-18 | 110 | 3.26 | 0/1 | p34 |
| 2026-10-17 | 110 | 3.26 | 0/1 | p41 |
| 2026-10-16 | 110 | 3.26 | 0/1 | p61 |
| 2026-10-15 | 110 | 3.26 | 0/1 | p58 |
| 2026-10-14 | 110 | 3.26 | 0/1 | p44 |
| 2026-10-13 | 110 | 3.26 | 0/1 | p42 |
| 2026-10-12 | 110 | 3.26 | 0/1 | p44 |
| 2026-10-11 | 110 | 3.26 | 0/1 | p40 |
| 2026-10-10 | 110 | 3.26 | 0/1 | p41 |
| 2026-10-09 | 110 | 3.26 | 0/1 | p49 |
| 2026-10-08 | 89 | 2.51 | 0/1 | p50 |
| 2026-10-07 | 89 | 2.51 | 0/1 | p50 |
Top water assets
- 65Tull Creekriver
- 65Running Reelfoot Bayouriver
- 65Running Reelfoot Bayouriver
- 65Running Sloughriver
- 65Obion River At Hwy 51 Near Obion, Tnriver
- 65Running Reelfoot Bayou Below Reelfoot Spillwaylake
- 65North Fork Obion Riverriver
- 65North Fork Obion River Near Martin, Tn (Ce)river
- 65Bogus Creekriver
- 65North Fork Obion Riverriver