COLUMBIA--MCNARY DAM (MCDW1)
| Observed | Forecast/Trend Issued: 2026-08-24 09:08 PDT | ||
| Date/Time (PDT) | Inflow | Date/Time (PDT) | Inflow |
| 2026-08-25 00:00 | 110000 | 2026-08-25 11:00 | 107034.77 |
| 2026-08-24 00:00 | 92100 | 2026-08-25 17:00 | 109550.41 |
| 2026-08-23 00:00 | 104700 | 2026-08-25 23:00 | 111502.83 |
| 2026-08-22 00:00 | 128700 | 2026-08-26 05:00 | 112619.33 |
| 2026-08-21 00:00 | 121600 | 2026-08-26 11:00 | 113434.11 |
| 2026-08-20 00:00 | 98300 | 2026-08-26 17:00 | 114202.14 |
| 2026-08-19 00:00 | 112400 | 2026-08-26 23:00 | 114900.49 |
| 2026-08-18 00:00 | 115600 | 2026-08-27 05:00 | 115450.56 |
| 2026-08-17 00:00 | 121100 | 2026-08-27 11:00 | 115828.17 |
| 2026-08-16 00:00 | 114500 | 2026-08-27 17:00 | 116063.21 |
| 2026-08-15 00:00 | 114900 | 2026-08-27 23:00 | 116198.46 |
| 2026-08-28 05:00 | 116269.46 | ||
| 2026-08-28 11:00 | 116302.75 | ||
| 2026-08-28 17:00 | 116316.63 | ||
| 2026-08-28 23:00 | 116350.85 | ||
| 2026-08-29 05:00 | 116522.61 | ||
| 2026-08-29 11:00 | 116838.25 | ||
| 2026-08-29 17:00 | 117049.84 | ||
| 2026-08-29 23:00 | 116935.87 | ||
| 2026-08-30 05:00 | 116399.69 | ||
| 2026-08-30 11:00 | 115430.81 | ||
| 2026-08-30 17:00 | 114193.71 | ||
| 2026-08-30 23:00 | 112998.35 | ||
| 2026-08-31 05:00 | 112102.91 | ||
| 2026-08-31 11:00 | 111572.27 | ||
| 2026-08-31 17:00 | 111314.47 | ||
| 2026-08-31 23:00 | 111202.47 | ||
| 2026-09-01 05:00 | 111138.8 | ||
| 2026-09-01 11:00 | 110968.17 | ||
| 2026-09-01 17:00 | 110314.47 | ||
| 2026-09-01 23:00 | 108762.33 | ||
| 2026-09-02 05:00 | 106348.21 | ||
| 2026-09-02 11:00 | 103678.15 | ||
| 2026-09-02 17:00 | 101448.62 | ||
| 2026-09-02 23:00 | 99892.41 | ||
| 2026-09-03 05:00 | 98794.49 | ||