A 3,833 km² sub-basin of the Mid-Atlantic region in MD, VA, WV. 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.
| Date | DSCI | D2+ % | Gauges low | Flow pct |
|---|---|---|---|---|
| 2026-10-22 | 0 | 0 | 0/6 | p83 |
| 2026-10-21 | 0 | 0 | 0/6 | p86 |
| 2026-10-20 | 0 | 0 | 0/6 | p90 |
| 2026-10-19 | 0 | 0 | 0/6 | p93 |
| 2026-10-18 | 0 | 0 | 0/6 | p94 |
| 2026-10-17 | 0 | 0 | 0/6 | p95 |
| 2026-10-16 | 0 | 0 | 0/6 | p96 |
| 2026-10-15 | 5 | 0 | 0/6 | p95 |
| 2026-10-14 | 5 | 0 | 0/6 | p97 |
| 2026-10-13 | 5 | 0 | 0/6 | p98 |
| 2026-10-12 | 5 | 0 | 0/6 | p99 |
| 2026-10-11 | 5 | 0 | 0/6 | p42 |
| 2026-10-10 | 5 | 0 | 1/6 | p36 |
| 2026-10-09 | 5 | 0 | 1/6 | p39 |