COLUMBIA--MCNARY DAM (MCDW1)
| Observed | Forecast/Trend Issued: 2026-10-17 09:49 PDT | ||
| Date/Time (PDT) | Pool Height | Date/Time (PDT) | Pool Height |
| 2026-10-17 00:00 | 339.05 | 2026-10-17 23:00 | 338.86 |
| 2026-10-16 00:00 | 339.49 | 2026-10-18 05:00 | 338.86 |
| 2026-10-15 00:00 | 339.47 | 2026-10-18 11:00 | 338.86 |
| 2026-10-14 00:00 | 339.43 | 2026-10-18 17:00 | 338.86 |
| 2026-10-13 00:00 | 339.34 | 2026-10-18 23:00 | 338.86 |
| 2026-10-12 00:00 | 339.15 | 2026-10-19 05:00 | 338.86 |
| 2026-10-11 00:00 | 339.02 | 2026-10-19 11:00 | 338.86 |
| 2026-10-10 00:00 | 339.04 | 2026-10-19 17:00 | 338.86 |
| 2026-10-09 00:00 | 338.86 | 2026-10-19 23:00 | 338.86 |
| 2026-10-08 00:00 | 338.93 | 2026-10-20 05:00 | 338.86 |
| 2026-10-07 00:00 | 338.74 | 2026-10-20 11:00 | 338.86 |
| 2026-10-20 17:00 | 338.86 | ||
| 2026-10-20 23:00 | 338.86 | ||
| 2026-10-21 05:00 | 338.86 | ||
| 2026-10-21 11:00 | 338.86 | ||
| 2026-10-21 17:00 | 338.86 | ||
| 2026-10-21 23:00 | 338.86 | ||
| 2026-10-22 05:00 | 338.86 | ||
| 2026-10-22 11:00 | 338.86 | ||
| 2026-10-22 17:00 | 338.86 | ||
| 2026-10-22 23:00 | 338.86 | ||
| 2026-10-23 05:00 | 338.86 | ||
| 2026-10-23 11:00 | 338.86 | ||
| 2026-10-23 17:00 | 338.86 | ||
| 2026-10-23 23:00 | 338.86 | ||
| 2026-10-24 05:00 | 338.86 | ||
| 2026-10-24 11:00 | 338.86 | ||
| 2026-10-24 17:00 | 338.86 | ||
| 2026-10-24 23:00 | 338.86 | ||
| 2026-10-25 05:00 | 338.86 | ||
| 2026-10-25 11:00 | 338.86 | ||
| 2026-10-25 17:00 | 338.86 | ||
| 2026-10-25 23:00 | 338.86 | ||
| 2026-10-26 05:00 | 338.86 | ||
| 2026-10-26 11:00 | 338.86 | ||
| 2026-10-26 17:00 | 338.86 | ||
| 2026-10-26 23:00 | 338.86 | ||
| 2026-10-27 05:00 | 338.86 | ||