COLUMBIA--BLO ROCK ISLAND DAM (RISW1)
| Observed |
| Date/Time (PST) | Discharge |
| 2026-02-20 16:00 | 148731 | | |
| 2026-02-20 15:00 | 146319 | | |
| 2026-02-20 14:00 | 142244 | | |
| 2026-02-20 13:00 | 136544 | | |
| 2026-02-20 12:00 | 134581 | | |
| 2026-02-20 11:00 | 138681 | | |
| 2026-02-20 10:00 | 146188 | | |
| 2026-02-20 09:00 | 154631 | | |
| 2026-02-20 08:00 | 161044 | | |
| 2026-02-20 07:00 | 162812 | | |
| 2026-02-20 06:00 | 161169 | | |
| 2026-02-20 05:00 | 157325 | | |
| 2026-02-20 04:00 | 150125 | | |
| 2026-02-20 03:00 | 142537 | | |
| 2026-02-20 02:00 | 140644 | | |
| 2026-02-20 01:00 | 144231 | | |
| 2026-02-20 00:00 | 148938 | | |
| 2026-02-19 23:00 | 152650 | | |
| 2026-02-19 22:00 | 154069 | | |
| 2026-02-19 21:00 | 152194 | | |
| 2026-02-19 20:00 | 147750 | | |
| 2026-02-19 19:00 | 142906 | | |
| 2026-02-19 18:00 | 136194 | | |
| 2026-02-19 17:00 | 121194 | | |
| 2026-02-19 16:00 | 100669 | | |
| 2026-02-19 15:00 | 88188 | | |
| 2026-02-19 14:00 | 89419 | | |
| 2026-02-19 13:00 | 99600 | | |
| 2026-02-19 12:00 | 114350 | | |
| 2026-02-19 11:00 | 130719 | | |
| 2026-02-19 10:00 | 144044 | | |
| 2026-02-19 09:00 | 149894 | | |
| 2026-02-19 08:00 | 148300 | | |
| 2026-02-19 07:00 | 144625 | | |
| 2026-02-19 06:00 | 144675 | | |
| 2026-02-19 05:00 | 147963 | | |
| 2026-02-19 04:00 | 149194 | | |
| 2026-02-19 03:00 | 147231 | | |
| 2026-02-19 02:00 | 145488 | | |
| 2026-02-19 01:00 | 144387 | | |
| 2026-02-19 00:00 | 143238 | | |
| 2026-02-18 23:00 | 145162 | | |
| 2026-02-18 22:00 | 150738 | | |
| 2026-02-18 21:00 | 155050 | | |
| 2026-02-18 20:00 | 155600 | | |
| 2026-02-18 19:00 | 151887 | | |
| 2026-02-18 18:00 | 141975 | | |
| 2026-02-18 17:00 | 129869 | | |
| 2026-02-18 16:00 | 124425 | | |
| 2026-02-18 15:00 | 126644 | | |
| 2026-02-18 14:00 | 130438 | | |
| 2026-02-18 13:00 | 132981 | | |
| 2026-02-18 12:00 | 135306 | | |
| 2026-02-18 11:00 | 138656 | | |
| 2026-02-18 10:00 | 142456 | | |
| 2026-02-18 09:00 | 143162 | | |
| 2026-02-18 08:00 | 140137 | | |
| 2026-02-18 07:00 | 137831 | | |
| 2026-02-18 06:00 | 137875 | | |
| 2026-02-18 05:00 | 139056 | | |
| 2026-02-18 04:00 | 141238 | | |
| 2026-02-18 03:00 | 143463 | | |
| 2026-02-18 02:00 | 145244 | | |
| 2026-02-18 01:00 | 147488 | | |
| 2026-02-18 00:00 | 151094 | | |
| 2026-02-17 23:00 | 155887 | | |
| 2026-02-17 22:00 | 159350 | | |
| 2026-02-17 21:00 | 160662 | | |
| 2026-02-17 20:00 | 161825 | | |
| 2026-02-17 19:00 | 162319 | | |
| 2026-02-17 18:00 | 159919 | | |
| 2026-02-17 17:00 | 155381 | | |
| 2026-02-17 16:00 | 152525 | | |
| 2026-02-17 15:00 | 153350 | | |
| 2026-02-17 14:00 | 155400 | | |
| 2026-02-17 13:00 | 157406 | | |
| 2026-02-17 12:00 | 160600 | | |
| 2026-02-17 11:00 | 163456 | | |
| 2026-02-17 10:00 | 163669 | | |
| 2026-02-17 09:00 | 160744 | | |
| 2026-02-17 08:00 | 155363 | | |
| 2026-02-17 07:00 | 149575 | | |
| 2026-02-17 06:00 | 144325 | | |
| 2026-02-17 05:00 | 138662 | | |
| 2026-02-17 04:00 | 131519 | | |
| 2026-02-17 03:00 | 125688 | | |
| 2026-02-17 02:00 | 129400 | | |
| 2026-02-17 01:00 | 143875 | | |
| 2026-02-17 00:00 | 157975 | | |
| 2026-02-16 23:00 | 164194 | | |
| 2026-02-16 22:00 | 165106 | | |
| 2026-02-16 21:00 | 162919 | | |
| 2026-02-16 20:00 | 157069 | | |
| 2026-02-16 19:00 | 150519 | | |
| 2026-02-16 18:00 | 146756 | | |
| 2026-02-16 17:00 | 144412 | | |
| 2026-02-16 16:00 | 142294 | | |
| 2026-02-16 15:00 | 141556 | | |
| 2026-02-16 14:00 | 142050 | | |
| 2026-02-16 13:00 | 143644 | | |
| 2026-02-16 12:00 | 147675 | | |
| 2026-02-16 11:00 | 154100 | | |
| 2026-02-16 10:00 | 160031 | | |
| 2026-02-16 09:00 | 162375 | | |
| 2026-02-16 08:00 | 160481 | | |
| 2026-02-16 07:00 | 155244 | | |
| 2026-02-16 06:00 | 148475 | | |
| 2026-02-16 05:00 | 142988 | | |
| 2026-02-16 04:00 | 140088 | | |
| 2026-02-16 03:00 | 138706 | | |
| 2026-02-16 02:00 | 138281 | | |
| 2026-02-16 01:00 | 140400 | | |
| 2026-02-16 00:00 | 145463 | | |
| 2026-02-15 23:00 | 149544 | | |
| 2026-02-15 22:00 | 148106 | | |
| 2026-02-15 21:00 | 140619 | | |
| 2026-02-15 20:00 | 129137 | | |
| 2026-02-15 19:00 | 114175 | | |
| 2026-02-15 18:00 | 95312 | | |
| 2026-02-15 17:00 | 77862 | | |
| 2026-02-15 16:00 | 70688 | | |
| 2026-02-15 15:00 | 74338 | | |
| 2026-02-15 14:00 | 84256 | | |
| 2026-02-15 13:00 | 100487 | | |
| 2026-02-15 12:00 | 120119 | | |
| 2026-02-15 11:00 | 134225 | | |
| 2026-02-15 10:00 | 141162 | | |
| 2026-02-15 09:00 | 145975 | | |
| 2026-02-15 08:00 | 148588 | | |
| 2026-02-15 07:00 | 146794 | | |
| 2026-02-15 06:00 | 143031 | | |
| 2026-02-15 05:00 | 141419 | | |
| 2026-02-15 04:00 | 142475 | | |
| 2026-02-15 03:00 | 144344 | | |
| 2026-02-15 02:00 | 146975 | | |
| 2026-02-15 01:00 | 149975 | | |
| 2026-02-15 00:00 | 151875 | | |
| 2026-02-14 23:00 | 152300 | | |
| 2026-02-14 22:00 | 150444 | | |
| 2026-02-14 21:00 | 145113 | | |
| 2026-02-14 20:00 | 134956 | | |
| 2026-02-14 19:00 | 119181 | | |
| 2026-02-14 18:00 | 99375 | | |
| 2026-02-14 17:00 | 80056 | | |
| 2026-02-14 16:00 | 68862 | | |
| 2026-02-14 15:00 | 69831 | | |
| 2026-02-14 14:00 | 78250 | | |
| 2026-02-14 13:00 | 87844 | | |
| 2026-02-14 12:00 | 96162 | | |
| 2026-02-14 11:00 | 103050 | | |
| 2026-02-14 10:00 | 110312 | | |
| 2026-02-14 09:00 | 118575 | | |
| 2026-02-14 08:00 | 124181 | | |
| 2026-02-14 07:00 | 124781 | | |
| 2026-02-14 06:00 | 123850 | | |
| 2026-02-14 05:00 | 126631 | | |
| 2026-02-14 04:00 | 133812 | | |
| 2026-02-14 03:00 | 141369 | | |
| 2026-02-14 02:00 | 146775 | | |
| 2026-02-14 01:00 | 150556 | | |
| 2026-02-14 00:00 | 151981 | | |
| 2026-02-13 23:00 | 150838 | | |
| 2026-02-13 22:00 | 149988 | | |
| 2026-02-13 21:00 | 147519 | | |
| 2026-02-13 20:00 | 136394 | | |
| 2026-02-13 19:00 | 119919 | | |
| 2026-02-13 18:00 | 111369 | | |
| 2026-02-13 17:00 | 114050 | | |
| 2026-02-13 16:00 | 120588 | | |
| 2026-02-13 15:00 | 128156 | | |
| 2026-02-13 14:00 | 138088 | | |
| 2026-02-13 13:00 | 148938 | | |
| 2026-02-13 12:00 | 157525 | | |
| 2026-02-13 11:00 | 161875 | | |
| 2026-02-13 10:00 | 163500 | | |
| 2026-02-13 09:00 | 165625 | | |
| 2026-02-13 08:00 | 169800 | | |
| 2026-02-13 07:00 | 176019 | | |
| 2026-02-13 06:00 | 179162 | | |
| 2026-02-13 05:00 | 170044 | | |
| 2026-02-13 04:00 | 152062 | | |
| 2026-02-13 03:00 | 141938 | | |
| 2026-02-13 02:00 | 143175 | | |
| 2026-02-13 01:00 | 144338 | | |
| 2026-02-13 00:00 | 141894 | | |
| 2026-02-12 23:00 | 136900 | | |
| 2026-02-12 22:00 | 126250 | | |
| 2026-02-12 21:00 | 111681 | | |
| 2026-02-12 20:00 | 97450 | | |
| 2026-02-12 19:00 | 83950 | | |
| 2026-02-12 18:00 | 73325 | | |
| 2026-02-12 17:00 | 68487 | | |
| 2026-02-12 16:00 | 68781 | | |
| 2026-02-12 15:00 | 75656 | | |
| 2026-02-12 14:00 | 91963 | | |
| 2026-02-12 13:00 | 112213 | | |
| 2026-02-12 12:00 | 128031 | | |
| 2026-02-12 11:00 | 139000 | | |
| 2026-02-12 10:00 | 146856 | | |
| 2026-02-12 09:00 | 150244 | | |
| 2026-02-12 08:00 | 148900 | | |
| 2026-02-12 07:00 | 146287 | | |
| 2026-02-12 06:00 | 147213 | | |
| 2026-02-12 05:00 | 149400 | | |
| 2026-02-12 04:00 | 145912 | | |
| 2026-02-12 03:00 | 140963 | | |
| 2026-02-12 02:00 | 144875 | | |
| 2026-02-12 01:00 | 155012 | | |
| 2026-02-12 00:00 | 161319 | | |
| 2026-02-11 23:00 | 161450 | | |
| 2026-02-11 22:00 | 157550 | | |
| 2026-02-11 21:00 | 150300 | | |
| 2026-02-11 20:00 | 141756 | | |
| 2026-02-11 19:00 | 135475 | | |
| 2026-02-11 18:00 | 132125 | | |
| 2026-02-11 17:00 | 129894 | | |
| 2026-02-11 16:00 | 129000 | | |
| 2026-02-11 15:00 | 130606 | | |
| 2026-02-11 14:00 | 134256 | | |
| 2026-02-11 13:00 | 140088 | | |
| 2026-02-11 12:00 | 148056 | | |
| 2026-02-11 11:00 | 155719 | | |
| 2026-02-11 10:00 | 160631 | | |
| 2026-02-11 09:00 | 161688 | | |
| 2026-02-11 08:00 | 157637 | | |
| 2026-02-11 07:00 | 147775 | | |
| 2026-02-11 06:00 | 135325 | | |
| 2026-02-11 05:00 | 126888 | | |
| 2026-02-11 04:00 | 126838 | | |
| 2026-02-11 03:00 | 135369 | | |
| 2026-02-11 02:00 | 148506 | | |
| 2026-02-11 01:00 | 159006 | | |
| 2026-02-11 00:00 | 163244 | | |
| 2026-02-10 23:00 | 162744 | | |
| 2026-02-10 22:00 | 158912 | | |
| 2026-02-10 21:00 | 153519 | | |
| 2026-02-10 20:00 | 148356 | | |
| 2026-02-10 19:00 | 142675 | | |
| 2026-02-10 18:00 | 136613 | | |
| 2026-02-10 17:00 | 132281 | | |
| 2026-02-10 16:00 | 131231 | | |
| 2026-02-10 15:00 | 134450 | | |
| 2026-02-10 14:00 | 141175 | | |
| 2026-02-10 13:00 | 148950 | | |
| 2026-02-10 12:00 | 155200 | | |
| 2026-02-10 11:00 | 158494 | | |
| 2026-02-10 10:00 | 160744 | | |
| 2026-02-10 09:00 | 163463 | | |
| 2026-02-10 08:00 | 164181 | | |
| 2026-02-10 07:00 | 160494 | | |
| 2026-02-10 06:00 | 152256 | | |
| 2026-02-10 05:00 | 141819 | | |
| 2026-02-10 04:00 | 133537 | | |
| 2026-02-10 03:00 | 129850 | | |
| 2026-02-10 02:00 | 130162 | | |
| 2026-02-10 01:00 | 133025 | | |
| 2026-02-10 00:00 | 135950 | | |
| 2026-02-09 23:00 | 137150 | | |
| 2026-02-09 22:00 | 137294 | | |
| 2026-02-09 21:00 | 133250 | | |
| 2026-02-09 20:00 | 120094 | | |
| 2026-02-09 19:00 | 101188 | | |
| 2026-02-09 18:00 | 84662 | | |
| 2026-02-09 17:00 | 75594 | | |
| 2026-02-09 16:00 | 74431 | | |