A 2,447 km² sub-basin of the Mid-Atlantic region in VA. 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 |
|---|---|---|---|---|
| 2026-10-19 | 5 | 0 | 0/4 | p40 |
| 2026-10-18 | 5 | 0 | 0/4 | p56 |
| 2026-10-17 | 5 | 0 | 0/4 | p56 |
| 2026-10-16 | 5 | 0 | 0/4 | p62 |
| 2026-10-15 | 6 | 0 | 0/4 | p65 |
| 2026-10-14 | 6 | 0 | 0/4 | p62 |
| 2026-10-13 | 6 | 0 | 0/4 | p50 |
| 2026-10-12 | 6 | 0 | 1/4 | p32 |
| 2026-10-11 | 6 | 0 | 1/4 | p30 |
| 2026-10-10 | 6 | 0 | 2/4 | p30 |
| 2026-10-09 | 6 | 0 | 2/4 | p30 |
| 2026-10-08 | 6 | 0 | 1/4 | p30 |
| 2026-10-07 | 6 | 0 | 1/4 | p32 |
| 2026-10-06 | 6 | 0 | 1/4 | p34 |