COLUMBIA--THE DALLES DAM (TDAO3)
| Observed | Forecast/Trend Issued: 2026-07-14 10:31 PDT | ||
| Date/Time (PDT) | Pool Height | Date/Time (PDT) | Pool Height |
| 2026-07-14 00:00 | 159.01 | 2026-07-14 23:00 | 159.37 |
| 2026-07-13 00:00 | 158.96 | 2026-07-15 05:00 | 159.37 |
| 2026-07-12 00:00 | 158.59 | 2026-07-15 11:00 | 159.37 |
| 2026-07-11 00:00 | 158.81 | 2026-07-15 17:00 | 159.37 |
| 2026-07-10 00:00 | 159.06 | 2026-07-15 23:00 | 159.37 |
| 2026-07-09 00:00 | 158.93 | 2026-07-16 05:00 | 159.37 |
| 2026-07-08 00:00 | 159.31 | 2026-07-16 11:00 | 159.37 |
| 2026-07-07 00:00 | 159.25 | 2026-07-16 17:00 | 159.37 |
| 2026-07-06 00:00 | 158.99 | 2026-07-16 23:00 | 159.37 |
| 2026-07-05 00:00 | 158.72 | 2026-07-17 05:00 | 159.37 |
| 2026-07-04 00:00 | 159.15 | 2026-07-17 11:00 | 159.37 |
| 2026-07-17 17:00 | 159.37 | ||
| 2026-07-17 23:00 | 159.37 | ||
| 2026-07-18 05:00 | 159.37 | ||
| 2026-07-18 11:00 | 159.37 | ||
| 2026-07-18 17:00 | 159.37 | ||
| 2026-07-18 23:00 | 159.37 | ||
| 2026-07-19 05:00 | 159.37 | ||
| 2026-07-19 11:00 | 159.37 | ||
| 2026-07-19 17:00 | 159.37 | ||
| 2026-07-19 23:00 | 159.37 | ||
| 2026-07-20 05:00 | 159.37 | ||
| 2026-07-20 11:00 | 159.37 | ||
| 2026-07-20 17:00 | 159.37 | ||
| 2026-07-20 23:00 | 159.37 | ||
| 2026-07-21 05:00 | 159.37 | ||
| 2026-07-21 11:00 | 159.37 | ||
| 2026-07-21 17:00 | 159.37 | ||
| 2026-07-21 23:00 | 159.37 | ||
| 2026-07-22 05:00 | 159.37 | ||
| 2026-07-22 11:00 | 159.37 | ||
| 2026-07-22 17:00 | 159.37 | ||
| 2026-07-22 23:00 | 159.37 | ||
| 2026-07-23 05:00 | 159.37 | ||
| 2026-07-23 11:00 | 159.37 | ||
| 2026-07-23 17:00 | 159.37 | ||
| 2026-07-23 23:00 | 159.37 | ||
| 2026-07-24 05:00 | 159.37 | ||