COLUMBIA--PRIEST RAPIDS DAM (PRWW1)
| Observed | Forecast/Trend Issued: 2026-04-23 10:04 PDT | ||
| Date/Time (PDT) | Inflow | Date/Time (PDT) | Inflow |
| 2026-04-23 00:00 | 137800 | 2026-04-23 17:00 | 136677.08 |
| 2026-04-22 00:00 | 150700 | 2026-04-23 23:00 | 144459.92 |
| 2026-04-21 00:00 | 148200 | 2026-04-24 05:00 | 148456.38 |
| 2026-04-20 00:00 | 131500 | 2026-04-24 11:00 | 150998.64 |
| 2026-04-19 00:00 | 134200 | 2026-04-24 17:00 | 152986.19 |
| 2026-04-18 00:00 | 143400 | 2026-04-24 23:00 | 154739.15 |
| 2026-04-17 00:00 | 125900 | 2026-04-25 05:00 | 156549.94 |
| 2026-04-16 00:00 | 130000 | 2026-04-25 11:00 | 158680.13 |
| 2026-04-15 00:00 | 131800 | 2026-04-25 17:00 | 160849.11 |
| 2026-04-14 00:00 | 127400 | 2026-04-25 23:00 | 162319.75 |
| 2026-04-13 00:00 | 143000 | 2026-04-26 05:00 | 162673.13 |
| 2026-04-26 11:00 | 162082.08 | ||
| 2026-04-26 17:00 | 160954.45 | ||
| 2026-04-26 23:00 | 159571.7 | ||
| 2026-04-27 05:00 | 158023.06 | ||
| 2026-04-27 11:00 | 156345.43 | ||
| 2026-04-27 17:00 | 154609.3 | ||
| 2026-04-27 23:00 | 152937.21 | ||
| 2026-04-28 05:00 | 151456.92 | ||
| 2026-04-28 11:00 | 150229.64 | ||
| 2026-04-28 17:00 | 149156.34 | ||
| 2026-04-28 23:00 | 148122.92 | ||
| 2026-04-29 05:00 | 147223.69 | ||
| 2026-04-29 11:00 | 146579.91 | ||
| 2026-04-29 17:00 | 146138.06 | ||
| 2026-04-29 23:00 | 145836.85 | ||
| 2026-04-30 05:00 | 145712.8 | ||
| 2026-04-30 11:00 | 145753.39 | ||
| 2026-04-30 17:00 | 145816.57 | ||
| 2026-04-30 23:00 | 145777.68 | ||
| 2026-05-01 05:00 | 145622.59 | ||
| 2026-05-01 11:00 | 145385.53 | ||
| 2026-05-01 17:00 | 145137.12 | ||
| 2026-05-01 23:00 | 145022.11 | ||
| 2026-05-02 05:00 | 145184.25 | ||
| 2026-05-02 11:00 | 145622.85 | ||
| 2026-05-02 17:00 | 146219.68 | ||
| 2026-05-02 23:00 | 146896.97 | ||
| 2026-05-03 05:00 | 147651.89 | ||