A 12,384 km² sub-basin of the Lower Colorado region in AZ, MX. 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 |
|---|---|---|---|---|
| 2026-10-21 | 287 | 86.92 | 0/1 | p25 |
| 2026-10-20 | 287 | 86.92 | 0/1 | p25 |
| 2026-10-19 | 287 | 86.92 | 0/1 | p25 |
| 2026-10-18 | 287 | 86.92 | 0/1 | p50 |
| 2026-10-17 | 287 | 86.92 | 0/1 | p50 |
| 2026-10-16 | 287 | 86.92 | 0/1 | p50 |
| 2026-10-15 | 294 | 94.21 | 0/1 | p50 |
| 2026-10-14 | 294 | 94.21 | 0/1 | p50 |
| 2026-10-13 | 294 | 94.21 | 0/1 | p50 |
| 2026-10-12 | 294 | 94.21 | 0/1 | p50 |
| 2026-10-11 | 294 | 94.21 | 0/1 | p50 |
| 2026-10-10 | 294 | 94.21 | 0/1 | p50 |
| 2026-10-09 | 294 | 94.21 | 0/1 | p50 |
| 2026-10-08 | 294 | 94.21 | 0/1 | p50 |