COLUMBIA--WELLS DAM (WELW1)
| Observed | Forecast/Trend Issued: 2026-06-27 10:47 PDT | ||
| Date/Time (PDT) | Pool Height | Date/Time (PDT) | Pool Height |
| 2026-06-27 00:00 | 778.2 | 2026-06-27 23:00 | 777.09 |
| 2026-06-26 00:00 | 778.99 | 2026-06-28 05:00 | 777.09 |
| 2026-06-25 00:00 | 776.6 | 2026-06-28 11:00 | 777.09 |
| 2026-06-24 00:00 | 776.81 | 2026-06-28 17:00 | 777.09 |
| 2026-06-23 00:00 | 778.88 | 2026-06-28 23:00 | 777.09 |
| 2026-06-22 00:00 | 777.35 | 2026-06-29 05:00 | 777.09 |
| 2026-06-21 00:00 | 776.72 | 2026-06-29 11:00 | 777.09 |
| 2026-06-20 00:00 | 778.3 | 2026-06-29 17:00 | 777.09 |
| 2026-06-19 00:00 | 777.84 | 2026-06-29 23:00 | 777.09 |
| 2026-06-18 00:00 | 777.12 | 2026-06-30 05:00 | 777.09 |
| 2026-06-17 00:00 | 778.01 | 2026-06-30 11:00 | 777.09 |
| 2026-06-30 17:00 | 777.09 | ||
| 2026-06-30 23:00 | 777.09 | ||
| 2026-07-01 05:00 | 777.09 | ||
| 2026-07-01 11:00 | 777.09 | ||
| 2026-07-01 17:00 | 777.09 | ||
| 2026-07-01 23:00 | 777.09 | ||
| 2026-07-02 05:00 | 777.09 | ||
| 2026-07-02 11:00 | 777.09 | ||
| 2026-07-02 17:00 | 777.09 | ||
| 2026-07-02 23:00 | 777.09 | ||
| 2026-07-03 05:00 | 777.09 | ||
| 2026-07-03 11:00 | 777.09 | ||
| 2026-07-03 17:00 | 777.09 | ||
| 2026-07-03 23:00 | 777.09 | ||
| 2026-07-04 05:00 | 777.09 | ||
| 2026-07-04 11:00 | 777.09 | ||
| 2026-07-04 17:00 | 777.09 | ||
| 2026-07-04 23:00 | 777.09 | ||
| 2026-07-05 05:00 | 777.09 | ||
| 2026-07-05 11:00 | 777.09 | ||
| 2026-07-05 17:00 | 777.09 | ||
| 2026-07-05 23:00 | 777.09 | ||
| 2026-07-06 05:00 | 777.09 | ||
| 2026-07-06 11:00 | 777.09 | ||
| 2026-07-06 17:00 | 777.09 | ||
| 2026-07-06 23:00 | 777.09 | ||
| 2026-07-07 05:00 | 777.09 | ||