COLUMBIA--MCNARY DAM (MCDW1)
| Observed | Forecast/Trend Issued: 2026-04-26 10:25 PDT | ||
| Date/Time (PDT) | Inflow | Date/Time (PDT) | Inflow |
| 2026-04-26 00:00 | 240700 | 2026-04-26 17:00 | 247963.52 |
| 2026-04-25 00:00 | 236700 | 2026-04-26 23:00 | 244832.56 |
| 2026-04-24 00:00 | 227000 | 2026-04-27 05:00 | 241703.04 |
| 2026-04-23 00:00 | 224000 | 2026-04-27 11:00 | 241566.66 |
| 2026-04-22 00:00 | 216900 | 2026-04-27 17:00 | 240537.18 |
| 2026-04-21 00:00 | 215400 | 2026-04-27 23:00 | 238835.62 |
| 2026-04-20 00:00 | 194000 | 2026-04-28 05:00 | 237137.6 |
| 2026-04-19 00:00 | 220900 | 2026-04-28 11:00 | 236179.8 |
| 2026-04-18 00:00 | 219700 | 2026-04-28 17:00 | 235914.02 |
| 2026-04-17 00:00 | 214900 | 2026-04-28 23:00 | 235804.98 |
| 2026-04-16 00:00 | 204600 | 2026-04-29 05:00 | 234952.98 |
| 2026-04-29 11:00 | 232810.16 | ||
| 2026-04-29 17:00 | 229885.34 | ||
| 2026-04-29 23:00 | 227195.68 | ||
| 2026-04-30 05:00 | 225279.58 | ||
| 2026-04-30 11:00 | 224053.86 | ||
| 2026-04-30 17:00 | 223262.66 | ||
| 2026-04-30 23:00 | 222767.92 | ||
| 2026-05-01 05:00 | 222547.4 | ||
| 2026-05-01 11:00 | 222607.22 | ||
| 2026-05-01 17:00 | 222937.64 | ||
| 2026-05-01 23:00 | 223517.08 | ||
| 2026-05-02 05:00 | 224339.88 | ||
| 2026-05-02 11:00 | 225426.22 | ||
| 2026-05-02 17:00 | 226783.24 | ||
| 2026-05-02 23:00 | 228390.74 | ||
| 2026-05-03 05:00 | 230234.76 | ||
| 2026-05-03 11:00 | 232305.56 | ||
| 2026-05-03 17:00 | 234536.34 | ||
| 2026-05-03 23:00 | 236813.32 | ||
| 2026-05-04 05:00 | 239061.56 | ||
| 2026-05-04 11:00 | 241279.4 | ||
| 2026-05-04 17:00 | 243469.72 | ||
| 2026-05-04 23:00 | 245620.62 | ||
| 2026-05-05 05:00 | 247762.3 | ||
| 2026-05-05 11:00 | 249912.18 | ||
| 2026-05-05 17:00 | 251985.54 | ||
| 2026-05-05 23:00 | 253870.52 | ||
| 2026-05-06 05:00 | 255571.84 | ||