COLUMBIA--BLO ROCK ISLAND DAM (RISW1)
| Observed |
| Date/Time (PDT) | Discharge |
| 2025-07-04 09:00 | 63819 | | |
| 2025-07-04 08:00 | 59081 | | |
| 2025-07-04 07:00 | 63650 | | |
| 2025-07-04 06:00 | 76381 | | |
| 2025-07-04 05:00 | 87812 | | |
| 2025-07-04 04:00 | 92006 | | |
| 2025-07-04 03:00 | 95631 | | |
| 2025-07-04 02:00 | 107763 | | |
| 2025-07-04 01:00 | 124194 | | |
| 2025-07-04 00:00 | 133381 | | |
| 2025-07-03 23:00 | 132044 | | |
| 2025-07-03 22:00 | 126669 | | |
| 2025-07-03 21:00 | 123744 | | |
| 2025-07-03 20:00 | 123050 | | |
| 2025-07-03 19:00 | 122225 | | |
| 2025-07-03 18:00 | 120319 | | |
| 2025-07-03 17:00 | 116025 | | |
| 2025-07-03 16:00 | 110275 | | |
| 2025-07-03 15:00 | 104263 | | |
| 2025-07-03 14:00 | 96475 | | |
| 2025-07-03 13:00 | 88231 | | |
| 2025-07-03 12:00 | 84812 | | |
| 2025-07-03 11:00 | 90094 | | |
| 2025-07-03 10:00 | 100344 | | |
| 2025-07-03 09:00 | 108312 | | |
| 2025-07-03 08:00 | 114469 | | |
| 2025-07-03 07:00 | 121594 | | |
| 2025-07-03 06:00 | 126444 | | |
| 2025-07-03 05:00 | 126294 | | |
| 2025-07-03 04:00 | 124219 | | |
| 2025-07-03 03:00 | 123925 | | |
| 2025-07-03 02:00 | 125263 | | |
| 2025-07-03 01:00 | 125144 | | |
| 2025-07-03 00:00 | 119769 | | |
| 2025-07-02 23:00 | 111769 | | |
| 2025-07-02 22:00 | 110031 | | |
| 2025-07-02 21:00 | 114606 | | |
| 2025-07-02 20:00 | 116237 | | |
| 2025-07-02 19:00 | 113900 | | |
| 2025-07-02 18:00 | 116412 | | |
| 2025-07-02 17:00 | 125938 | | |
| 2025-07-02 16:00 | 131938 | | |
| 2025-07-02 15:00 | 126075 | | |
| 2025-07-02 14:00 | 113419 | | |
| 2025-07-02 13:00 | 103381 | | |
| 2025-07-02 12:00 | 99306 | | |
| 2025-07-02 11:00 | 99981 | | |
| 2025-07-02 10:00 | 104263 | | |
| 2025-07-02 09:00 | 109369 | | |
| 2025-07-02 08:00 | 110006 | | |
| 2025-07-02 07:00 | 105394 | | |
| 2025-07-02 06:00 | 100406 | | |
| 2025-07-02 05:00 | 100463 | | |
| 2025-07-02 04:00 | 110206 | | |
| 2025-07-02 03:00 | 126819 | | |
| 2025-07-02 02:00 | 138188 | | |
| 2025-07-02 01:00 | 138125 | | |
| 2025-07-02 00:00 | 132988 | | |
| 2025-07-01 23:00 | 130781 | | |
| 2025-07-01 22:00 | 132575 | | |
| 2025-07-01 21:00 | 134819 | | |
| 2025-07-01 20:00 | 135400 | | |
| 2025-07-01 19:00 | 133894 | | |
| 2025-07-01 18:00 | 129644 | | |
| 2025-07-01 17:00 | 124000 | | |
| 2025-07-01 16:00 | 119550 | | |
| 2025-07-01 15:00 | 116075 | | |
| 2025-07-01 14:00 | 111912 | | |
| 2025-07-01 13:00 | 106831 | | |
| 2025-07-01 12:00 | 101506 | | |
| 2025-07-01 11:00 | 97213 | | |
| 2025-07-01 10:00 | 94794 | | |
| 2025-07-01 09:00 | 91569 | | |
| 2025-07-01 08:00 | 83950 | | |
| 2025-07-01 07:00 | 74213 | | |
| 2025-07-01 06:00 | 69112 | | |
| 2025-07-01 05:00 | 72044 | | |
| 2025-07-01 04:00 | 80450 | | |
| 2025-07-01 03:00 | 91175 | | |
| 2025-07-01 02:00 | 103669 | | |
| 2025-07-01 01:00 | 118237 | | |
| 2025-07-01 00:00 | 134244 | | |
| 2025-06-30 23:00 | 146588 | | |
| 2025-06-30 22:00 | 148944 | | |
| 2025-06-30 21:00 | 142988 | | |
| 2025-06-30 20:00 | 135250 | | |
| 2025-06-30 19:00 | 126825 | | |
| 2025-06-30 18:00 | 112562 | | |
| 2025-06-30 17:00 | 91519 | | |
| 2025-06-30 16:00 | 71575 | | |
| 2025-06-30 15:00 | 59006 | | |
| 2025-06-30 14:00 | 53006 | | |
| 2025-06-30 13:00 | 49100 | | |
| 2025-06-30 12:00 | 44431 | | |
| 2025-06-30 11:00 | 42481 | | |
| 2025-06-30 10:00 | 45763 | | |
| 2025-06-30 09:00 | 50513 | | |
| 2025-06-30 08:00 | 54781 | | |
| 2025-06-30 07:00 | 59812 | | |
| 2025-06-30 06:00 | 65731 | | |
| 2025-06-30 05:00 | 75325 | | |
| 2025-06-30 04:00 | 94181 | | |
| 2025-06-30 03:00 | 120600 | | |
| 2025-06-30 02:00 | 142569 | | |
| 2025-06-30 01:00 | 149644 | | |
| 2025-06-30 00:00 | 144869 | | |
| 2025-06-29 23:00 | 138431 | | |
| 2025-06-29 22:00 | 133456 | | |
| 2025-06-29 21:00 | 125869 | | |
| 2025-06-29 20:00 | 110888 | | |
| 2025-06-29 19:00 | 89438 | | |
| 2025-06-29 18:00 | 71469 | | |
| 2025-06-29 17:00 | 64912 | | |
| 2025-06-29 16:00 | 66338 | | |
| 2025-06-29 15:00 | 68181 | | |
| 2025-06-29 14:00 | 67237 | | |
| 2025-06-29 13:00 | 65450 | | |
| 2025-06-29 12:00 | 65675 | | |
| 2025-06-29 11:00 | 67781 | | |
| 2025-06-29 10:00 | 70225 | | |
| 2025-06-29 09:00 | 71662 | | |
| 2025-06-29 08:00 | 71156 | | |
| 2025-06-29 07:00 | 70575 | | |
| 2025-06-29 06:00 | 72625 | | |
| 2025-06-29 05:00 | 76838 | | |
| 2025-06-29 04:00 | 84662 | | |
| 2025-06-29 03:00 | 100600 | | |
| 2025-06-29 02:00 | 121388 | | |
| 2025-06-29 01:00 | 137338 | | |
| 2025-06-29 00:00 | 145331 | | |
| 2025-06-28 23:00 | 148006 | | |
| 2025-06-28 22:00 | 146494 | | |
| 2025-06-28 21:00 | 142450 | | |
| 2025-06-28 20:00 | 139050 | | |
| 2025-06-28 19:00 | 136762 | | |
| 2025-06-28 18:00 | 133300 | | |
| 2025-06-28 17:00 | 127562 | | |
| 2025-06-28 16:00 | 119513 | | |
| 2025-06-28 15:00 | 107806 | | |
| 2025-06-28 14:00 | 93325 | | |
| 2025-06-28 13:00 | 79669 | | |
| 2025-06-28 12:00 | 67463 | | |
| 2025-06-28 11:00 | 56419 | | |
| 2025-06-28 10:00 | 48862 | | |
| 2025-06-28 09:00 | 46025 | | |
| 2025-06-28 08:00 | 48075 | | |
| 2025-06-28 07:00 | 54950 | | |
| 2025-06-28 06:00 | 62369 | | |
| 2025-06-28 05:00 | 65744 | | |
| 2025-06-28 04:00 | 69013 | | |
| 2025-06-28 03:00 | 80381 | | |
| 2025-06-28 02:00 | 98556 | | |
| 2025-06-28 01:00 | 113888 | | |
| 2025-06-28 00:00 | 121900 | | |
| 2025-06-27 23:00 | 123162 | | |
| 2025-06-27 22:00 | 117625 | | |
| 2025-06-27 21:00 | 108713 | | |
| 2025-06-27 20:00 | 102956 | | |
| 2025-06-27 19:00 | 101544 | | |
| 2025-06-27 18:00 | 100575 | | |
| 2025-06-27 17:00 | 97881 | | |
| 2025-06-27 16:00 | 93275 | | |
| 2025-06-27 15:00 | 88225 | | |
| 2025-06-27 14:00 | 86706 | | |
| 2025-06-27 13:00 | 89544 | | |
| 2025-06-27 12:00 | 92312 | | |
| 2025-06-27 11:00 | 93256 | | |
| 2025-06-27 10:00 | 96094 | | |
| 2025-06-27 09:00 | 102125 | | |
| 2025-06-27 08:00 | 106625 | | |
| 2025-06-27 07:00 | 105188 | | |
| 2025-06-27 06:00 | 98487 | | |
| 2025-06-27 05:00 | 91075 | | |
| 2025-06-27 04:00 | 87594 | | |
| 2025-06-27 03:00 | 89950 | | |
| 2025-06-27 02:00 | 98231 | | |
| 2025-06-27 01:00 | 109588 | | |
| 2025-06-27 00:00 | 116356 | | |
| 2025-06-26 23:00 | 113713 | | |
| 2025-06-26 22:00 | 104838 | | |
| 2025-06-26 21:00 | 93594 | | |
| 2025-06-26 20:00 | 81806 | | |
| 2025-06-26 19:00 | 71438 | | |
| 2025-06-26 18:00 | 62862 | | |
| 2025-06-26 17:00 | 56744 | | |
| 2025-06-26 16:00 | 55381 | | |
| 2025-06-26 15:00 | 59525 | | |
| 2025-06-26 14:00 | 66631 | | |
| 2025-06-26 13:00 | 74575 | | |
| 2025-06-26 12:00 | 87350 | | |
| 2025-06-26 11:00 | 107244 | | |
| 2025-06-26 10:00 | 127369 | | |
| 2025-06-26 09:00 | 142256 | | |
| 2025-06-26 08:00 | 152156 | | |
| 2025-06-26 07:00 | 156412 | | |
| 2025-06-26 06:00 | 154106 | | |
| 2025-06-26 05:00 | 148950 | | |
| 2025-06-26 04:00 | 147350 | | |
| 2025-06-26 03:00 | 150688 | | |
| 2025-06-26 02:00 | 153906 | | |
| 2025-06-26 01:00 | 153012 | | |
| 2025-06-26 00:00 | 151000 | | |
| 2025-06-25 23:00 | 152319 | | |
| 2025-06-25 22:00 | 155719 | | |
| 2025-06-25 21:00 | 156325 | | |
| 2025-06-25 20:00 | 147225 | | |
| 2025-06-25 19:00 | 124812 | | |
| 2025-06-25 18:00 | 96506 | | |
| 2025-06-25 17:00 | 73812 | | |
| 2025-06-25 16:00 | 61625 | | |
| 2025-06-25 15:00 | 58050 | | |
| 2025-06-25 14:00 | 59069 | | |
| 2025-06-25 13:00 | 62344 | | |
| 2025-06-25 12:00 | 67556 | | |
| 2025-06-25 11:00 | 74150 | | |
| 2025-06-25 10:00 | 82169 | | |
| 2025-06-25 09:00 | 93525 | | |
| 2025-06-25 08:00 | 107900 | | |
| 2025-06-25 07:00 | 119431 | | |
| 2025-06-25 06:00 | 121075 | | |
| 2025-06-25 05:00 | 115481 | | |
| 2025-06-25 04:00 | 116175 | | |
| 2025-06-25 03:00 | 128250 | | |
| 2025-06-25 02:00 | 140375 | | |
| 2025-06-25 01:00 | 143481 | | |
| 2025-06-25 00:00 | 139963 | | |
| 2025-06-24 23:00 | 133931 | | |
| 2025-06-24 22:00 | 126706 | | |
| 2025-06-24 21:00 | 119444 | | |
| 2025-06-24 20:00 | 112644 | | |
| 2025-06-24 19:00 | 105425 | | |
| 2025-06-24 18:00 | 97719 | | |
| 2025-06-24 17:00 | 90225 | | |
| 2025-06-24 16:00 | 81450 | | |
| 2025-06-24 15:00 | 71062 | | |
| 2025-06-24 14:00 | 64544 | | |
| 2025-06-24 13:00 | 64725 | | |
| 2025-06-24 12:00 | 66381 | | |
| 2025-06-24 11:00 | 65625 | | |
| 2025-06-24 10:00 | 64662 | | |
| 2025-06-24 09:00 | 67156 | | |
| 2025-06-24 08:00 | 73175 | | |
| 2025-06-24 07:00 | 79150 | | |
| 2025-06-24 06:00 | 84800 | | |
| 2025-06-24 05:00 | 95256 | | |
| 2025-06-24 04:00 | 114737 | | |
| 2025-06-24 03:00 | 141731 | | |
| 2025-06-24 02:00 | 165994 | | |
| 2025-06-24 01:00 | 176581 | | |
| 2025-06-24 00:00 | 177562 | | |
| 2025-06-23 23:00 | 178425 | | |
| 2025-06-23 22:00 | 176662 | | |
| 2025-06-23 21:00 | 168931 | | |
| 2025-06-23 20:00 | 160819 | | |
| 2025-06-23 19:00 | 156281 | | |
| 2025-06-23 18:00 | 153675 | | |
| 2025-06-23 17:00 | 151287 | | |