COLUMBIA--GRAND COULEE DAM (GCDW1)
| Observed |
| Date/Time (PST) | Discharge |
| 2026-11-08 01:00 | 57825 | | |
| 2026-11-08 00:00 | 66794 | | |
| 2026-11-07 23:00 | 75181 | | |
| 2026-11-07 22:00 | 82650 | | |
| 2026-11-07 21:00 | 90638 | | |
| 2026-11-07 20:00 | 99219 | | |
| 2026-11-07 19:00 | 107025 | | |
| 2026-11-07 18:00 | 110731 | | |
| 2026-11-07 17:00 | 106162 | | |
| 2026-11-07 16:00 | 95112 | | |
| 2026-11-07 15:00 | 85394 | | |
| 2026-11-07 14:00 | 82100 | | |
| 2026-11-07 13:00 | 83844 | | |
| 2026-11-07 12:00 | 86294 | | |
| 2026-11-07 11:00 | 86931 | | |
| 2026-11-07 10:00 | 85981 | | |
| 2026-11-07 09:00 | 84194 | | |
| 2026-11-07 08:00 | 81575 | | |
| 2026-11-07 07:00 | 77481 | | |
| 2026-11-07 06:00 | 72438 | | |
| 2026-11-07 05:00 | 67938 | | |
| 2026-11-07 04:00 | 64319 | | |
| 2026-11-07 03:00 | 62425 | | |
| 2026-11-07 02:00 | 63587 | | |
| 2026-11-07 01:00 | 66431 | | |
| 2026-11-07 00:00 | 68681 | | |
| 2026-11-06 23:00 | 71506 | | |
| 2026-11-06 22:00 | 77875 | | |
| 2026-11-06 21:00 | 87700 | | |
| 2026-11-06 20:00 | 97500 | | |
| 2026-11-06 19:00 | 102869 | | |
| 2026-11-06 18:00 | 102175 | | |
| 2026-11-06 17:00 | 97206 | | |
| 2026-11-06 16:00 | 89606 | | |
| 2026-11-06 15:00 | 83031 | | |
| 2026-11-06 14:00 | 82406 | | |
| 2026-11-06 13:00 | 86631 | | |
| 2026-11-06 12:00 | 91425 | | |
| 2026-11-06 11:00 | 95294 | | |
| 2026-11-06 10:00 | 96963 | | |
| 2026-11-06 09:00 | 96231 | | |
| 2026-11-06 08:00 | 96062 | | |
| 2026-11-06 07:00 | 95688 | | |
| 2026-11-06 06:00 | 91031 | | |
| 2026-11-06 05:00 | 83656 | | |
| 2026-11-06 04:00 | 78219 | | |
| 2026-11-06 03:00 | 75894 | | |
| 2026-11-06 02:00 | 76575 | | |
| 2026-11-06 01:00 | 81513 | | |
| 2026-11-06 00:00 | 91188 | | |
| 2026-11-05 23:00 | 103325 | | |
| 2026-11-05 22:00 | 114706 | | |
| 2026-11-05 21:00 | 123569 | | |
| 2026-11-05 20:00 | 128750 | | |
| 2026-11-05 19:00 | 129662 | | |
| 2026-11-05 18:00 | 125044 | | |
| 2026-11-05 17:00 | 111381 | | |
| 2026-11-05 16:00 | 90944 | | |
| 2026-11-05 15:00 | 74175 | | |
| 2026-11-05 14:00 | 66569 | | |
| 2026-11-05 13:00 | 64731 | | |
| 2026-11-05 12:00 | 65275 | | |
| 2026-11-05 11:00 | 68213 | | |
| 2026-11-05 10:00 | 74525 | | |
| 2026-11-05 09:00 | 82594 | | |
| 2026-11-05 08:00 | 87375 | | |
| 2026-11-05 07:00 | 85719 | | |
| 2026-11-05 06:00 | 80419 | | |
| 2026-11-05 05:00 | 77600 | | |
| 2026-11-05 04:00 | 79881 | | |
| 2026-11-05 03:00 | 84737 | | |
| 2026-11-05 02:00 | 89419 | | |
| 2026-11-05 01:00 | 91713 | | |
| 2026-11-05 00:00 | 92144 | | |
| 2026-11-04 23:00 | 95056 | | |
| 2026-11-04 22:00 | 101919 | | |
| 2026-11-04 21:00 | 111569 | | |
| 2026-11-04 20:00 | 123231 | | |
| 2026-11-04 19:00 | 133019 | | |
| 2026-11-04 18:00 | 134319 | | |
| 2026-11-04 17:00 | 124325 | | |
| 2026-11-04 16:00 | 107356 | | |
| 2026-11-04 15:00 | 92019 | | |
| 2026-11-04 14:00 | 85269 | | |
| 2026-11-04 13:00 | 86688 | | |
| 2026-11-04 12:00 | 91731 | | |
| 2026-11-04 11:00 | 99794 | | |
| 2026-11-04 10:00 | 111513 | | |
| 2026-11-04 09:00 | 123306 | | |
| 2026-11-04 08:00 | 129000 | | |
| 2026-11-04 07:00 | 122300 | | |
| 2026-11-04 06:00 | 101994 | | |
| 2026-11-04 05:00 | 76569 | | |
| 2026-11-04 04:00 | 57819 | | |
| 2026-11-04 03:00 | 50862 | | |
| 2026-11-04 02:00 | 52513 | | |
| 2026-11-04 01:00 | 56625 | | |
| 2026-11-04 00:00 | 61206 | | |
| 2026-11-03 23:00 | 68812 | | |
| 2026-11-03 22:00 | 79237 | | |
| 2026-11-03 21:00 | 88706 | | |
| 2026-11-03 20:00 | 95306 | | |
| 2026-11-03 19:00 | 99400 | | |
| 2026-11-03 18:00 | 100094 | | |
| 2026-11-03 17:00 | 95025 | | |
| 2026-11-03 16:00 | 85450 | | |
| 2026-11-03 15:00 | 77725 | | |
| 2026-11-03 14:00 | 76062 | | |
| 2026-11-03 13:00 | 79875 | | |
| 2026-11-03 12:00 | 87050 | | |
| 2026-11-03 11:00 | 93000 | | |
| 2026-11-03 10:00 | 94987 | | |
| 2026-11-03 09:00 | 96050 | | |
| 2026-11-03 08:00 | 96338 | | |
| 2026-11-03 07:00 | 89981 | | |
| 2026-11-03 06:00 | 74200 | | |
| 2026-11-03 05:00 | 55000 | | |
| 2026-11-03 04:00 | 41600 | | |
| 2026-11-03 03:00 | 36850 | | |
| 2026-11-03 02:00 | 36794 | | |
| 2026-11-03 01:00 | 37194 | | |
| 2026-11-03 00:00 | 37725 | | |
| 2026-11-02 23:00 | 41425 | | |
| 2026-11-02 22:00 | 48962 | | |
| 2026-11-02 21:00 | 57663 | | |
| 2026-11-02 20:00 | 65956 | | |
| 2026-11-02 19:00 | 72219 | | |
| 2026-11-02 18:00 | 73938 | | |
| 2026-11-02 17:00 | 70200 | | |
| 2026-11-02 16:00 | 62538 | | |
| 2026-11-02 15:00 | 55019 | | |
| 2026-11-02 14:00 | 52075 | | |
| 2026-11-02 13:00 | 55619 | | |
| 2026-11-02 12:00 | 64369 | | |
| 2026-11-02 11:00 | 74737 | | |
| 2026-11-02 10:00 | 83556 | | |
| 2026-11-02 09:00 | 88575 | | |
| 2026-11-02 08:00 | 86481 | | |
| 2026-11-02 07:00 | 76438 | | |
| 2026-11-02 06:00 | 62875 | | |
| 2026-11-02 05:00 | 50013 | | |
| 2026-11-02 04:00 | 39556 | | |
| 2026-11-02 03:00 | 32800 | | |
| 2026-11-02 02:00 | 29881 | | |
| 2026-11-02 01:00 | 30269 | | |
| 2026-11-02 00:00 | 34375 | | |
| 2026-11-01 23:00 | 42094 | | |
| 2026-11-01 22:00 | 51769 | | |
| 2026-11-01 21:00 | 61856 | | |
| 2026-11-01 20:00 | 71419 | | |
| 2026-11-01 19:00 | 79188 | | |
| 2026-11-01 18:00 | 82631 | | |
| 2026-11-01 17:00 | 77625 | | |
| 2026-11-01 16:00 | 63394 | | |
| 2026-11-01 15:00 | 48131 | | |
| 2026-11-01 14:00 | 41825 | | |
| 2026-11-01 13:00 | 44688 | | |
| 2026-11-01 12:00 | 50431 | | |
| 2026-11-01 11:00 | 55987 | | |
| 2026-11-01 10:00 | 61344 | | |
| 2026-11-01 09:00 | 65487 | | |
| 2026-11-01 08:00 | 65987 | | |
| 2026-11-01 07:00 | 61169 | | |
| 2026-11-01 06:00 | 53038 | | |
| 2026-11-01 05:00 | 45531 | | |
| 2026-11-01 04:00 | 40688 | | |
| 2026-11-01 03:00 | 39025 | | |
| 2026-11-01 02:00 | 40456 | | |
| 2026-11-01 01:00 | 43269 | | |
| 2026-11-01 01:00 | 44844 | | |
| 2026-11-01 00:00 | 45188 | | |
| 2026-10-31 23:00 | 46481 | | |
| 2026-10-31 22:00 | 49094 | | |
| 2026-10-31 21:00 | 52406 | | |
| 2026-10-31 20:00 | 55644 | | |
| 2026-10-31 19:00 | 56944 | | |
| 2026-10-31 18:00 | 56481 | | |
| 2026-10-31 16:00 | 56500 | | |
| 2026-10-31 15:00 | 57431 | | |
| 2026-10-31 14:00 | 59031 | | |
| 2026-10-31 13:00 | 62281 | | |
| 2026-10-31 12:00 | 67831 | | |
| 2026-10-31 11:00 | 74781 | | |
| 2026-10-31 10:00 | 80794 | | |
| 2026-10-31 09:00 | 83569 | | |
| 2026-10-31 08:00 | 81713 | | |
| 2026-10-31 07:00 | 75269 | | |
| 2026-10-31 06:00 | 66963 | | |
| 2026-10-31 05:00 | 59406 | | |
| 2026-10-31 04:00 | 52769 | | |
| 2026-10-31 03:00 | 47550 | | |
| 2026-10-31 02:00 | 44906 | | |
| 2026-10-31 01:00 | 45275 | | |
| 2026-10-31 00:00 | 49212 | | |
| 2026-10-30 23:00 | 55869 | | |
| 2026-10-30 22:00 | 61794 | | |
| 2026-10-30 21:00 | 65569 | | |
| 2026-10-30 20:00 | 68819 | | |
| 2026-10-30 19:00 | 70844 | | |
| 2026-10-30 18:00 | 69781 | | |
| 2026-10-30 17:00 | 66969 | | |
| 2026-10-30 16:00 | 64825 | | |
| 2026-10-30 15:00 | 64750 | | |
| 2026-10-30 14:00 | 67294 | | |
| 2026-10-30 13:00 | 70525 | | |
| 2026-10-30 12:00 | 72106 | | |
| 2026-10-30 11:00 | 73100 | | |
| 2026-10-30 10:00 | 75481 | | |
| 2026-10-30 09:00 | 79144 | | |
| 2026-10-30 08:00 | 81681 | | |
| 2026-10-30 07:00 | 79981 | | |
| 2026-10-30 06:00 | 73075 | | |
| 2026-10-30 05:00 | 62156 | | |
| 2026-10-30 04:00 | 50706 | | |
| 2026-10-30 03:00 | 43369 | | |
| 2026-10-30 02:00 | 41288 | | |
| 2026-10-30 01:00 | 42237 | | |
| 2026-10-30 00:00 | 44388 | | |
| 2026-10-29 23:00 | 47825 | | |
| 2026-10-29 22:00 | 53513 | | |
| 2026-10-29 21:00 | 60756 | | |
| 2026-10-29 20:00 | 67694 | | |
| 2026-10-29 19:00 | 73013 | | |
| 2026-10-29 18:00 | 75175 | | |
| 2026-10-29 17:00 | 72231 | | |
| 2026-10-29 16:00 | 64406 | | |
| 2026-10-29 15:00 | 56531 | | |
| 2026-10-29 14:00 | 54094 | | |
| 2026-10-29 13:00 | 57388 | | |
| 2026-10-29 12:00 | 63469 | | |
| 2026-10-29 11:00 | 70237 | | |
| 2026-10-29 10:00 | 76469 | | |
| 2026-10-29 09:00 | 81894 | | |
| 2026-10-29 08:00 | 85987 | | |
| 2026-10-29 07:00 | 86062 | | |
| 2026-10-29 06:00 | 79875 | | |
| 2026-10-29 05:00 | 68037 | | |
| 2026-10-29 04:00 | 54444 | | |
| 2026-10-29 03:00 | 44675 | | |
| 2026-10-29 02:00 | 40587 | | |
| 2026-10-29 01:00 | 39781 | | |
| 2026-10-29 00:00 | 41031 | | |
| 2026-10-28 23:00 | 45581 | | |
| 2026-10-28 22:00 | 52788 | | |
| 2026-10-28 21:00 | 59237 | | |
| 2026-10-28 20:00 | 63075 | | |
| 2026-10-28 19:00 | 64225 | | |
| 2026-10-28 18:00 | 62781 | | |
| 2026-10-28 17:00 | 60306 | | |
| 2026-10-28 16:00 | 58256 | | |