COLUMBIA--MCNARY DAM (MCDW1)
| Observed | Forecast/Trend Issued: 2026-04-24 15:36 PDT | ||
| Date/Time (PDT) | Inflow | Date/Time (PDT) | Inflow |
| 2026-04-24 00:00 | 227000 | 2026-04-24 17:00 | 244384.8 |
| 2026-04-23 00:00 | 224000 | 2026-04-24 23:00 | 248969.84 |
| 2026-04-22 00:00 | 216900 | 2026-04-25 05:00 | 246904.7 |
| 2026-04-21 00:00 | 215400 | 2026-04-25 11:00 | 245902.02 |
| 2026-04-20 00:00 | 194000 | 2026-04-25 17:00 | 248072.22 |
| 2026-04-19 00:00 | 220900 | 2026-04-25 23:00 | 250088.6 |
| 2026-04-18 00:00 | 219700 | 2026-04-26 05:00 | 251128.52 |
| 2026-04-17 00:00 | 214900 | 2026-04-26 11:00 | 251216.56 |
| 2026-04-16 00:00 | 204600 | 2026-04-26 17:00 | 250176.2 |
| 2026-04-15 00:00 | 207000 | 2026-04-26 23:00 | 248051.76 |
| 2026-04-14 00:00 | 210500 | 2026-04-27 05:00 | 245171.7 |
| 2026-04-27 11:00 | 241937.22 | ||
| 2026-04-27 17:00 | 238605.52 | ||
| 2026-04-27 23:00 | 235293.1 | ||
| 2026-04-28 05:00 | 232082.08 | ||
| 2026-04-28 11:00 | 229082.64 | ||
| 2026-04-28 17:00 | 226417.8 | ||
| 2026-04-28 23:00 | 224118.18 | ||
| 2026-04-29 05:00 | 222016 | ||
| 2026-04-29 11:00 | 219935.98 | ||
| 2026-04-29 17:00 | 217953.62 | ||
| 2026-04-29 23:00 | 216274.04 | ||
| 2026-04-30 05:00 | 214978.04 | ||
| 2026-04-30 11:00 | 214005.5 | ||
| 2026-04-30 17:00 | 213277.66 | ||
| 2026-04-30 23:00 | 212749.46 | ||
| 2026-05-01 05:00 | 212392.36 | ||
| 2026-05-01 11:00 | 212187.96 | ||
| 2026-05-01 17:00 | 212127.8 | ||
| 2026-05-01 23:00 | 212219.9 | ||
| 2026-05-02 05:00 | 212512.06 | ||
| 2026-05-02 11:00 | 213083.58 | ||
| 2026-05-02 17:00 | 213987.98 | ||
| 2026-05-02 23:00 | 215214.06 | ||
| 2026-05-03 05:00 | 216706.1 | ||
| 2026-05-03 11:00 | 218412.34 | ||
| 2026-05-03 17:00 | 220274.36 | ||
| 2026-05-03 23:00 | 222223.9 | ||
| 2026-05-04 05:00 | 224222.82 | ||