COLUMBIA--BLO ROCK ISLAND DAM (RISW1)
| Observed | Forecast/Trend Issued: 2026-06-28 11:37 PDT | ||
| Date/Time (PDT) | Inflow | Date/Time (PDT) | Inflow |
| 2026-06-28 00:00 | 89290 | 2026-06-28 17:00 | 124747.57 |
| 2026-06-27 00:00 | 152660 | 2026-06-28 23:00 | 135763.92 |
| 2026-06-26 00:00 | 137610 | 2026-06-29 05:00 | 136227.98 |
| 2026-06-25 00:00 | 129310 | 2026-06-29 11:00 | 134632.31 |
| 2026-06-24 00:00 | 144430 | 2026-06-29 17:00 | 133938.52 |
| 2026-06-23 00:00 | 123590 | 2026-06-29 23:00 | 134313.87 |
| 2026-06-22 00:00 | 100010 | 2026-06-30 05:00 | 135561.45 |
| 2026-06-21 00:00 | 100800 | 2026-06-30 11:00 | 137216.29 |
| 2026-06-20 00:00 | 150440 | 2026-06-30 17:00 | 138926.73 |
| 2026-06-19 00:00 | 124130 | 2026-06-30 23:00 | 140664.17 |
| 2026-06-18 00:00 | 114500 | 2026-07-01 05:00 | 142062.26 |
| 2026-07-01 11:00 | 142742.68 | ||
| 2026-07-01 17:00 | 143236.3 | ||
| 2026-07-01 23:00 | 143988.3 | ||
| 2026-07-02 05:00 | 145072.4 | ||
| 2026-07-02 11:00 | 144533.13 | ||
| 2026-07-02 17:00 | 141902.57 | ||
| 2026-07-02 23:00 | 140196.47 | ||
| 2026-07-03 05:00 | 140166.29 | ||
| 2026-07-03 11:00 | 140560.21 | ||
| 2026-07-03 17:00 | 140803.8 | ||
| 2026-07-03 23:00 | 140877.33 | ||
| 2026-07-04 05:00 | 140811.98 | ||
| 2026-07-04 11:00 | 140601.01 | ||
| 2026-07-04 17:00 | 140203.83 | ||
| 2026-07-04 23:00 | 139579.76 | ||
| 2026-07-05 05:00 | 138731.81 | ||
| 2026-07-05 11:00 | 137705.4 | ||
| 2026-07-05 17:00 | 136454.07 | ||
| 2026-07-05 23:00 | 134624.18 | ||
| 2026-07-06 05:00 | 127343.73 | ||
| 2026-07-06 11:00 | 115123.07 | ||
| 2026-07-06 17:00 | 107016.19 | ||
| 2026-07-06 23:00 | 104749.47 | ||
| 2026-07-07 05:00 | 104495.87 | ||
| 2026-07-07 11:00 | 104448.86 | ||
| 2026-07-07 17:00 | 104403.87 | ||
| 2026-07-07 23:00 | 104358.07 | ||
| 2026-07-08 05:00 | 104308.01 | ||