COLUMBIA--MCNARY DAM (MCDW1)
| Observed | Forecast/Trend Issued: 2026-03-27 09:45 PDT | ||
| Date/Time (PDT) | Inflow | Date/Time (PDT) | Inflow |
| 2026-03-27 00:00 | 230300 | 2026-03-27 11:00 | 256797.92 |
| 2026-03-26 00:00 | 229200 | 2026-03-27 17:00 | 258522.94 |
| 2026-03-25 00:00 | 239000 | 2026-03-27 23:00 | 259993.92 |
| 2026-03-24 00:00 | 238200 | 2026-03-28 05:00 | 257102.6 |
| 2026-03-23 00:00 | 240600 | 2026-03-28 11:00 | 252069.06 |
| 2026-03-22 00:00 | 236600 | 2026-03-28 17:00 | 248140.94 |
| 2026-03-21 00:00 | 213200 | 2026-03-28 23:00 | 245550.68 |
| 2026-03-20 00:00 | 198900 | 2026-03-29 05:00 | 243504.34 |
| 2026-03-19 00:00 | 191200 | 2026-03-29 11:00 | 241623.96 |
| 2026-03-18 00:00 | 167700 | 2026-03-29 17:00 | 239869.62 |
| 2026-03-17 00:00 | 209500 | 2026-03-29 23:00 | 238274.86 |
| 2026-03-30 05:00 | 236708.58 | ||
| 2026-03-30 11:00 | 234769.26 | ||
| 2026-03-30 17:00 | 232033.12 | ||
| 2026-03-30 23:00 | 228461.62 | ||
| 2026-03-31 05:00 | 224569.1 | ||
| 2026-03-31 11:00 | 221113.52 | ||
| 2026-03-31 17:00 | 218555.86 | ||
| 2026-03-31 23:00 | 216839.46 | ||
| 2026-04-01 05:00 | 215635.3 | ||
| 2026-04-01 11:00 | 214664.9 | ||
| 2026-04-01 17:00 | 213838.7 | ||
| 2026-04-01 23:00 | 213300.34 | ||
| 2026-04-02 05:00 | 213536.78 | ||
| 2026-04-02 11:00 | 215089.38 | ||
| 2026-04-02 17:00 | 217897.96 | ||
| 2026-04-02 23:00 | 221316.3 | ||
| 2026-04-03 05:00 | 224652.86 | ||
| 2026-04-03 11:00 | 227334.02 | ||
| 2026-04-03 17:00 | 228918.16 | ||
| 2026-04-03 23:00 | 229226.6 | ||
| 2026-04-04 05:00 | 228398.82 | ||
| 2026-04-04 11:00 | 226772.14 | ||
| 2026-04-04 17:00 | 224695.58 | ||
| 2026-04-04 23:00 | 222418.54 | ||
| 2026-04-05 05:00 | 220097.54 | ||
| 2026-04-05 11:00 | 217852.62 | ||
| 2026-04-05 17:00 | 215773.08 | ||
| 2026-04-05 23:00 | 213879.22 | ||
| 2026-04-06 05:00 | 212139.7 | ||