COLUMBIA--MCNARY DAM (MCDW1)
| Observed | Forecast/Trend Issued: 2026-03-12 10:35 PDT | ||
| Date/Time (PDT) | Pool Height | Date/Time (PDT) | Pool Height |
| 2026-03-13 00:00 | 338.5 | 2026-03-13 11:00 | 338.32 |
| 2026-03-12 00:00 | 338.36 | 2026-03-13 17:00 | 338.32 |
| 2026-03-11 00:00 | 338.71 | 2026-03-13 23:00 | 338.32 |
| 2026-03-10 00:00 | 338.98 | 2026-03-14 05:00 | 338.32 |
| 2026-03-09 00:00 | 339.57 | 2026-03-14 11:00 | 338.32 |
| 2026-03-08 00:00 | 339.39 | 2026-03-14 17:00 | 338.32 |
| 2026-03-07 01:00 | 338.73 | 2026-03-14 23:00 | 338.32 |
| 2026-03-06 01:00 | 339.07 | 2026-03-15 05:00 | 338.32 |
| 2026-03-05 01:00 | 339.31 | 2026-03-15 11:00 | 338.32 |
| 2026-03-04 01:00 | 339.32 | 2026-03-15 17:00 | 338.32 |
| 2026-03-03 01:00 | 339.53 | 2026-03-15 23:00 | 338.32 |
| 2026-03-16 05:00 | 338.32 | ||
| 2026-03-16 11:00 | 338.32 | ||
| 2026-03-16 17:00 | 338.32 | ||
| 2026-03-16 23:00 | 338.32 | ||
| 2026-03-17 05:00 | 338.32 | ||
| 2026-03-17 11:00 | 338.32 | ||
| 2026-03-17 17:00 | 338.32 | ||
| 2026-03-17 23:00 | 338.32 | ||
| 2026-03-18 05:00 | 338.32 | ||
| 2026-03-18 11:00 | 338.32 | ||
| 2026-03-18 17:00 | 338.32 | ||
| 2026-03-18 23:00 | 338.32 | ||
| 2026-03-19 05:00 | 338.32 | ||
| 2026-03-19 11:00 | 338.32 | ||
| 2026-03-19 17:00 | 338.32 | ||
| 2026-03-19 23:00 | 338.32 | ||
| 2026-03-20 05:00 | 338.32 | ||
| 2026-03-20 11:00 | 338.32 | ||
| 2026-03-20 17:00 | 338.32 | ||
| 2026-03-20 23:00 | 338.32 | ||
| 2026-03-21 05:00 | 338.32 | ||
| 2026-03-21 11:00 | 338.32 | ||
| 2026-03-21 17:00 | 338.32 | ||
| 2026-03-21 23:00 | 338.32 | ||
| 2026-03-22 05:00 | 338.32 | ||