COLUMBIA--MCNARY DAM (MCDW1)
| Observed | Forecast/Trend Issued: 2026-01-27 09:28 PST | ||
| Date/Time (PST) | Pool Height | Date/Time (PST) | Pool Height |
| 2026-01-28 00:00 | 339.33 | 2026-01-28 04:00 | 339.34 |
| 2026-01-27 00:00 | 339.02 | 2026-01-28 10:00 | 339.34 |
| 2026-01-26 00:00 | 338.48 | 2026-01-28 16:00 | 339.34 |
| 2026-01-25 00:00 | 338.52 | 2026-01-28 22:00 | 339.34 |
| 2026-01-24 00:00 | 338.94 | 2026-01-29 04:00 | 339.34 |
| 2026-01-23 00:00 | 339.65 | 2026-01-29 10:00 | 339.34 |
| 2026-01-22 00:00 | 339.73 | 2026-01-29 16:00 | 339.34 |
| 2026-01-21 00:00 | 339.64 | 2026-01-29 22:00 | 339.34 |
| 2026-01-20 00:00 | 339.58 | 2026-01-30 04:00 | 339.34 |
| 2026-01-19 00:00 | 339.69 | 2026-01-30 10:00 | 339.34 |
| 2026-01-18 00:00 | 339.47 | 2026-01-30 16:00 | 339.34 |
| 2026-01-30 22:00 | 339.34 | ||
| 2026-01-31 04:00 | 339.34 | ||
| 2026-01-31 10:00 | 339.34 | ||
| 2026-01-31 16:00 | 339.34 | ||
| 2026-01-31 22:00 | 339.34 | ||
| 2026-02-01 04:00 | 339.34 | ||
| 2026-02-01 10:00 | 339.34 | ||
| 2026-02-01 16:00 | 339.34 | ||
| 2026-02-01 22:00 | 339.34 | ||
| 2026-02-02 04:00 | 339.34 | ||
| 2026-02-02 10:00 | 339.34 | ||
| 2026-02-02 16:00 | 339.34 | ||
| 2026-02-02 22:00 | 339.34 | ||
| 2026-02-03 04:00 | 339.34 | ||
| 2026-02-03 10:00 | 339.34 | ||
| 2026-02-03 16:00 | 339.34 | ||
| 2026-02-03 22:00 | 339.34 | ||
| 2026-02-04 04:00 | 339.34 | ||
| 2026-02-04 10:00 | 339.34 | ||
| 2026-02-04 16:00 | 339.34 | ||
| 2026-02-04 22:00 | 339.34 | ||
| 2026-02-05 04:00 | 339.34 | ||
| 2026-02-05 10:00 | 339.34 | ||
| 2026-02-05 16:00 | 339.34 | ||
| 2026-02-05 22:00 | 339.34 | ||
| 2026-02-06 04:00 | 339.34 | ||