COLUMBIA--PRIEST RAPIDS DAM (PRWW1)
| Observed | Forecast/Trend Issued: 2026-03-15 10:18 PDT | ||
| Date/Time (PDT) | Inflow | Date/Time (PDT) | Inflow |
| 2026-03-15 00:00 | 136600 | 2026-03-15 17:00 | 137652.97 |
| 2026-03-14 00:00 | 153300 | 2026-03-15 23:00 | 132244.75 |
| 2026-03-13 00:00 | 136000 | 2026-03-16 05:00 | 119333.53 |
| 2026-03-12 00:00 | 151700 | 2026-03-16 11:00 | 110459.51 |
| 2026-03-11 00:00 | 116700 | 2026-03-16 17:00 | 107908.06 |
| 2026-03-10 00:00 | 124700 | 2026-03-16 23:00 | 107817.68 |
| 2026-03-09 00:00 | 130700 | 2026-03-17 05:00 | 108056.92 |
| 2026-03-08 00:00 | 141700 | 2026-03-17 11:00 | 108251.24 |
| 2026-03-07 01:00 | 133700 | 2026-03-17 17:00 | 108501.46 |
| 2026-03-06 01:00 | 117100 | 2026-03-17 23:00 | 109000.46 |
| 2026-03-05 01:00 | 115600 | 2026-03-18 05:00 | 109819.3 |
| 2026-03-18 11:00 | 110868.54 | ||
| 2026-03-18 17:00 | 112023.31 | ||
| 2026-03-18 23:00 | 113229.7 | ||
| 2026-03-19 05:00 | 114470.38 | ||
| 2026-03-19 11:00 | 115717.03 | ||
| 2026-03-19 17:00 | 117017.76 | ||
| 2026-03-19 23:00 | 118451.52 | ||
| 2026-03-20 05:00 | 120000.07 | ||
| 2026-03-20 11:00 | 121542.5 | ||
| 2026-03-20 17:00 | 123006.28 | ||
| 2026-03-20 23:00 | 124457.63 | ||
| 2026-03-21 05:00 | 126018.67 | ||
| 2026-03-21 11:00 | 127827.68 | ||
| 2026-03-21 17:00 | 130031.37 | ||
| 2026-03-21 23:00 | 132599.32 | ||
| 2026-03-22 05:00 | 135204.99 | ||
| 2026-03-22 11:00 | 137403.29 | ||
| 2026-03-22 17:00 | 138930.39 | ||
| 2026-03-22 23:00 | 139806.08 | ||
| 2026-03-23 05:00 | 140198.17 | ||
| 2026-03-23 11:00 | 140251.6 | ||
| 2026-03-23 17:00 | 140041.47 | ||
| 2026-03-23 23:00 | 139624.21 | ||
| 2026-03-24 05:00 | 139054.46 | ||
| 2026-03-24 11:00 | 138356.84 | ||
| 2026-03-24 17:00 | 137507.66 | ||
| 2026-03-24 23:00 | 136485.58 | ||
| 2026-03-25 05:00 | 135352.25 | ||