COLUMBIA--MCNARY DAM (MCDW1)
| Observed | Forecast/Trend Issued: 2026-05-10 09:31 PDT | ||
| Date/Time (PDT) | Inflow | Date/Time (PDT) | Inflow |
| 2026-05-10 00:00 | 220000 | 2026-05-10 17:00 | 267608.62 |
| 2026-05-09 00:00 | 222100 | 2026-05-10 23:00 | 265430.32 |
| 2026-05-08 00:00 | 228500 | 2026-05-11 05:00 | 261219.4 |
| 2026-05-07 00:00 | 241800 | 2026-05-11 11:00 | 259936.56 |
| 2026-05-06 00:00 | 229100 | 2026-05-11 17:00 | 260519.38 |
| 2026-05-05 00:00 | 235800 | 2026-05-11 23:00 | 261540.38 |
| 2026-05-04 00:00 | 225300 | 2026-05-12 05:00 | 262498.04 |
| 2026-05-03 00:00 | 236600 | 2026-05-12 11:00 | 263322.58 |
| 2026-05-02 00:00 | 229800 | 2026-05-12 17:00 | 264031.16 |
| 2026-05-01 00:00 | 229300 | 2026-05-12 23:00 | 264616.98 |
| 2026-04-30 00:00 | 215900 | 2026-05-13 05:00 | 265061.52 |
| 2026-05-13 11:00 | 265372.5 | ||
| 2026-05-13 17:00 | 265760.32 | ||
| 2026-05-13 23:00 | 266483.56 | ||
| 2026-05-14 05:00 | 267616.18 | ||
| 2026-05-14 11:00 | 269141.7 | ||
| 2026-05-14 17:00 | 270963.54 | ||
| 2026-05-14 23:00 | 272934.84 | ||
| 2026-05-15 05:00 | 274839.88 | ||
| 2026-05-15 11:00 | 276389.38 | ||
| 2026-05-15 17:00 | 277353.4 | ||
| 2026-05-15 23:00 | 277665.5 | ||
| 2026-05-16 05:00 | 277360.22 | ||
| 2026-05-16 11:00 | 276502.8 | ||
| 2026-05-16 17:00 | 275215 | ||
| 2026-05-16 23:00 | 273636.32 | ||
| 2026-05-17 05:00 | 271822.6 | ||
| 2026-05-17 11:00 | 269761.54 | ||
| 2026-05-17 17:00 | 267442.96 | ||
| 2026-05-17 23:00 | 264895.2 | ||
| 2026-05-18 05:00 | 262178.72 | ||
| 2026-05-18 11:00 | 259365.82 | ||
| 2026-05-18 17:00 | 256543.12 | ||
| 2026-05-18 23:00 | 253795.7 | ||
| 2026-05-19 05:00 | 251187.14 | ||
| 2026-05-19 11:00 | 248764.14 | ||
| 2026-05-19 17:00 | 246578.76 | ||
| 2026-05-19 23:00 | 244668.94 | ||
| 2026-05-20 05:00 | 243038.44 | ||