A 2,137 km² sub-basin of the Missouri region in NE, SD. Drought coverage is from the US Drought Monitor; streamflow classes place each USGS gauge's latest reading against its own day-of-year record.
| Date | DSCI | D2+ % | Gauges low | Flow pct |
|---|---|---|---|---|
| 2026-10-21 | — | — | 0/1 | p38 |
| 2026-10-20 | — | — | 0/1 | p40 |
| 2026-10-19 | — | — | 0/1 | p40 |
| 2026-10-18 | — | — | 0/1 | p39 |
| 2026-10-17 | — | — | 0/1 | p43 |
| 2026-10-16 | — | — | 0/1 | p42 |
| 2026-10-15 | — | — | 0/1 | p42 |
| 2026-10-14 | — | — | 0/1 | p45 |
| 2026-10-13 | — | — | 0/1 | p45 |
| 2026-10-12 | — | — | 0/1 | p48 |
| 2026-10-11 | — | — | 0/1 | p50 |
| 2026-10-10 | — | — | 0/1 | p51 |
| 2026-10-09 | — | — | 0/1 | p51 |
| 2026-10-08 | — | — | 0/1 | p51 |