COLUMBIA--MCNARY DAM (MCDW1)
| Observed | Forecast/Trend Issued: 2026-04-10 10:26 PDT | ||
| Date/Time (PDT) | Inflow | Date/Time (PDT) | Inflow |
| 2026-04-10 00:00 | 184900 | 2026-04-10 17:00 | 185968.2 |
| 2026-04-09 00:00 | 167800 | 2026-04-10 23:00 | 185911.92 |
| 2026-04-08 00:00 | 167300 | 2026-04-11 05:00 | 186809.82 |
| 2026-04-07 00:00 | 181600 | 2026-04-11 11:00 | 191039.62 |
| 2026-04-06 00:00 | 191300 | 2026-04-11 17:00 | 195418.94 |
| 2026-04-05 00:00 | 201000 | 2026-04-11 23:00 | 199106.98 |
| 2026-04-04 00:00 | 193800 | 2026-04-12 05:00 | 202326.52 |
| 2026-04-03 00:00 | 201600 | 2026-04-12 11:00 | 205830.62 |
| 2026-04-02 00:00 | 225100 | 2026-04-12 17:00 | 209895.22 |
| 2026-04-01 00:00 | 235800 | 2026-04-12 23:00 | 214265.84 |
| 2026-03-31 00:00 | 212900 | 2026-04-13 05:00 | 218489.16 |
| 2026-04-13 11:00 | 222446.24 | ||
| 2026-04-13 17:00 | 227097.48 | ||
| 2026-04-13 23:00 | 233505.74 | ||
| 2026-04-14 05:00 | 240606.28 | ||
| 2026-04-14 11:00 | 246514.4 | ||
| 2026-04-14 17:00 | 250411.52 | ||
| 2026-04-14 23:00 | 252025.2 | ||
| 2026-04-15 05:00 | 251585.06 | ||
| 2026-04-15 11:00 | 249709.04 | ||
| 2026-04-15 17:00 | 247128.58 | ||
| 2026-04-15 23:00 | 244494.68 | ||
| 2026-04-16 05:00 | 242293.6 | ||
| 2026-04-16 11:00 | 240739.5 | ||
| 2026-04-16 17:00 | 239699.38 | ||
| 2026-04-16 23:00 | 238779.7 | ||
| 2026-04-17 05:00 | 237595.24 | ||
| 2026-04-17 11:00 | 235979.54 | ||
| 2026-04-17 17:00 | 233978.08 | ||
| 2026-04-17 23:00 | 231724.1 | ||
| 2026-04-18 05:00 | 229350.42 | ||
| 2026-04-18 11:00 | 226969.62 | ||
| 2026-04-18 17:00 | 224668.32 | ||
| 2026-04-18 23:00 | 222495.6 | ||
| 2026-04-19 05:00 | 220465.48 | ||
| 2026-04-19 11:00 | 218585.94 | ||
| 2026-04-19 17:00 | 216886.94 | ||
| 2026-04-19 23:00 | 215450.26 | ||
| 2026-04-20 05:00 | 214551.3 | ||