COLUMBIA--BLO ROCK ISLAND DAM (RISW1)
| Observed |
| Date/Time (PDT) | Discharge |
| 2026-06-26 09:00 | 174787 | | |
| 2026-06-26 08:00 | 176319 | | |
| 2026-06-26 07:00 | 165662 | | |
| 2026-06-26 06:00 | 150562 | | |
| 2026-06-26 05:00 | 140119 | | |
| 2026-06-26 04:00 | 131731 | | |
| 2026-06-26 03:00 | 122438 | | |
| 2026-06-26 02:00 | 122581 | | |
| 2026-06-26 01:00 | 139100 | | |
| 2026-06-26 00:00 | 159700 | | |
| 2026-06-25 23:00 | 170394 | | |
| 2026-06-25 22:00 | 171963 | | |
| 2026-06-25 21:00 | 171256 | | |
| 2026-06-25 20:00 | 170306 | | |
| 2026-06-25 19:00 | 167887 | | |
| 2026-06-25 18:00 | 164025 | | |
| 2026-06-25 17:00 | 158800 | | |
| 2026-06-25 16:00 | 150369 | | |
| 2026-06-25 15:00 | 138406 | | |
| 2026-06-25 14:00 | 127625 | | |
| 2026-06-25 13:00 | 124544 | | |
| 2026-06-25 12:00 | 131044 | | |
| 2026-06-25 11:00 | 140600 | | |
| 2026-06-25 10:00 | 143594 | | |
| 2026-06-25 09:00 | 137244 | | |
| 2026-06-25 08:00 | 125619 | | |
| 2026-06-25 07:00 | 113225 | | |
| 2026-06-25 06:00 | 102156 | | |
| 2026-06-25 05:00 | 94206 | | |
| 2026-06-25 04:00 | 92131 | | |
| 2026-06-25 03:00 | 97319 | | |
| 2026-06-25 02:00 | 109612 | | |
| 2026-06-25 01:00 | 124912 | | |
| 2026-06-25 00:00 | 136700 | | |
| 2026-06-24 23:00 | 147100 | | |
| 2026-06-24 22:00 | 161981 | | |
| 2026-06-24 21:00 | 175119 | | |
| 2026-06-24 20:00 | 176506 | | |
| 2026-06-24 19:00 | 169562 | | |
| 2026-06-24 18:00 | 164194 | | |
| 2026-06-24 17:00 | 162519 | | |
| 2026-06-24 16:00 | 159650 | | |
| 2026-06-24 15:00 | 149863 | | |
| 2026-06-24 14:00 | 134044 | | |
| 2026-06-24 13:00 | 120812 | | |
| 2026-06-24 12:00 | 110356 | | |
| 2026-06-24 11:00 | 94931 | | |
| 2026-06-24 10:00 | 78881 | | |
| 2026-06-24 09:00 | 72531 | | |
| 2026-06-24 08:00 | 76731 | | |
| 2026-06-24 07:00 | 84375 | | |
| 2026-06-24 06:00 | 88975 | | |
| 2026-06-24 05:00 | 94919 | | |
| 2026-06-24 04:00 | 111862 | | |
| 2026-06-24 03:00 | 138019 | | |
| 2026-06-24 02:00 | 162556 | | |
| 2026-06-24 01:00 | 178688 | | |
| 2026-06-24 00:00 | 186637 | | |
| 2026-06-23 23:00 | 189537 | | |
| 2026-06-23 22:00 | 189375 | | |
| 2026-06-23 21:00 | 187544 | | |
| 2026-06-23 20:00 | 185994 | | |
| 2026-06-23 19:00 | 183475 | | |
| 2026-06-23 18:00 | 175844 | | |
| 2026-06-23 17:00 | 162456 | | |
| 2026-06-23 16:00 | 145306 | | |
| 2026-06-23 15:00 | 126263 | | |
| 2026-06-23 14:00 | 111306 | | |
| 2026-06-23 13:00 | 106269 | | |
| 2026-06-23 12:00 | 108475 | | |
| 2026-06-23 11:00 | 112469 | | |
| 2026-06-23 10:00 | 116713 | | |
| 2026-06-23 09:00 | 120362 | | |
| 2026-06-23 08:00 | 121638 | | |
| 2026-06-23 07:00 | 120575 | | |
| 2026-06-23 06:00 | 119444 | | |
| 2026-06-23 05:00 | 120694 | | |
| 2026-06-23 04:00 | 126775 | | |
| 2026-06-23 03:00 | 139275 | | |
| 2026-06-23 02:00 | 154113 | | |
| 2026-06-23 01:00 | 164537 | | |
| 2026-06-23 00:00 | 169475 | | |
| 2026-06-22 23:00 | 170944 | | |
| 2026-06-22 22:00 | 171762 | | |
| 2026-06-22 21:00 | 175625 | | |
| 2026-06-22 20:00 | 179713 | | |
| 2026-06-22 19:00 | 177175 | | |
| 2026-06-22 18:00 | 167738 | | |
| 2026-06-22 17:00 | 154725 | | |
| 2026-06-22 16:00 | 138994 | | |
| 2026-06-22 15:00 | 124344 | | |
| 2026-06-22 14:00 | 116450 | | |
| 2026-06-22 13:00 | 113081 | | |
| 2026-06-22 12:00 | 108344 | | |
| 2026-06-22 11:00 | 101463 | | |
| 2026-06-22 10:00 | 93856 | | |
| 2026-06-22 09:00 | 84513 | | |
| 2026-06-22 08:00 | 73194 | | |
| 2026-06-22 07:00 | 64194 | | |
| 2026-06-22 06:00 | 61494 | | |
| 2026-06-22 05:00 | 65013 | | |
| 2026-06-22 04:00 | 74938 | | |
| 2026-06-22 03:00 | 92625 | | |
| 2026-06-22 02:00 | 114075 | | |
| 2026-06-22 01:00 | 130506 | | |
| 2026-06-22 00:00 | 138287 | | |
| 2026-06-21 23:00 | 139819 | | |
| 2026-06-21 22:00 | 138037 | | |
| 2026-06-21 21:00 | 135881 | | |
| 2026-06-21 20:00 | 133294 | | |
| 2026-06-21 19:00 | 127419 | | |
| 2026-06-21 18:00 | 118763 | | |
| 2026-06-21 17:00 | 108831 | | |
| 2026-06-21 16:00 | 95713 | | |
| 2026-06-21 15:00 | 79606 | | |
| 2026-06-21 14:00 | 68006 | | |
| 2026-06-21 13:00 | 68362 | | |
| 2026-06-21 12:00 | 77562 | | |
| 2026-06-21 11:00 | 84250 | | |
| 2026-06-21 10:00 | 81662 | | |
| 2026-06-21 09:00 | 74662 | | |
| 2026-06-21 08:00 | 71731 | | |
| 2026-06-21 07:00 | 74481 | | |
| 2026-06-21 06:00 | 78906 | | |
| 2026-06-21 05:00 | 82344 | | |
| 2026-06-21 04:00 | 84694 | | |
| 2026-06-21 03:00 | 85975 | | |
| 2026-06-21 02:00 | 86319 | | |
| 2026-06-21 01:00 | 86412 | | |
| 2026-06-21 00:00 | 88162 | | |
| 2026-06-20 23:00 | 93619 | | |
| 2026-06-20 22:00 | 101306 | | |
| 2026-06-20 21:00 | 108169 | | |
| 2026-06-20 20:00 | 112944 | | |
| 2026-06-20 19:00 | 113388 | | |
| 2026-06-20 18:00 | 107056 | | |
| 2026-06-20 17:00 | 96294 | | |
| 2026-06-20 16:00 | 86575 | | |
| 2026-06-20 15:00 | 80850 | | |
| 2026-06-20 14:00 | 78162 | | |
| 2026-06-20 13:00 | 77450 | | |
| 2026-06-20 12:00 | 79581 | | |
| 2026-06-20 11:00 | 84644 | | |
| 2026-06-20 10:00 | 91287 | | |
| 2026-06-20 09:00 | 98213 | | |
| 2026-06-20 08:00 | 105031 | | |
| 2026-06-20 07:00 | 112469 | | |
| 2026-06-20 06:00 | 118869 | | |
| 2026-06-20 05:00 | 121013 | | |
| 2026-06-20 04:00 | 121300 | | |
| 2026-06-20 03:00 | 125181 | | |
| 2026-06-20 02:00 | 133625 | | |
| 2026-06-20 01:00 | 145244 | | |
| 2026-06-20 00:00 | 159250 | | |
| 2026-06-19 23:00 | 172787 | | |
| 2026-06-19 22:00 | 181463 | | |
| 2026-06-19 21:00 | 183544 | | |
| 2026-06-19 20:00 | 181019 | | |
| 2026-06-19 19:00 | 177738 | | |
| 2026-06-19 18:00 | 175950 | | |
| 2026-06-19 17:00 | 174831 | | |
| 2026-06-19 16:00 | 172912 | | |
| 2026-06-19 15:00 | 167444 | | |
| 2026-06-19 14:00 | 156431 | | |
| 2026-06-19 13:00 | 145319 | | |
| 2026-06-19 12:00 | 140338 | | |
| 2026-06-19 11:00 | 139156 | | |
| 2026-06-19 10:00 | 138162 | | |
| 2026-06-19 09:00 | 137525 | | |
| 2026-06-19 08:00 | 136094 | | |
| 2026-06-19 07:00 | 130606 | | |
| 2026-06-19 06:00 | 120481 | | |
| 2026-06-19 05:00 | 110669 | | |
| 2026-06-19 04:00 | 106162 | | |
| 2026-06-19 03:00 | 106294 | | |
| 2026-06-19 02:00 | 111181 | | |
| 2026-06-19 01:00 | 125925 | | |
| 2026-06-19 00:00 | 148525 | | |
| 2026-06-18 23:00 | 165169 | | |
| 2026-06-18 22:00 | 165025 | | |
| 2026-06-18 21:00 | 151750 | | |
| 2026-06-18 20:00 | 137731 | | |
| 2026-06-18 19:00 | 127888 | | |
| 2026-06-18 18:00 | 115888 | | |
| 2026-06-18 17:00 | 100362 | | |
| 2026-06-18 16:00 | 91956 | | |
| 2026-06-18 15:00 | 95644 | | |
| 2026-06-18 14:00 | 98631 | | |
| 2026-06-18 13:00 | 88050 | | |
| 2026-06-18 12:00 | 70156 | | |
| 2026-06-18 11:00 | 61075 | | |
| 2026-06-18 10:00 | 71594 | | |
| 2026-06-18 09:00 | 101406 | | |
| 2026-06-18 08:00 | 133369 | | |
| 2026-06-18 07:00 | 148744 | | |
| 2026-06-18 06:00 | 150644 | | |
| 2026-06-18 05:00 | 152306 | | |
| 2026-06-18 04:00 | 156450 | | |
| 2026-06-18 03:00 | 160344 | | |
| 2026-06-18 02:00 | 163750 | | |
| 2026-06-18 01:00 | 164069 | | |
| 2026-06-18 00:00 | 158619 | | |
| 2026-06-17 23:00 | 150988 | | |
| 2026-06-17 22:00 | 143319 | | |
| 2026-06-17 21:00 | 131975 | | |
| 2026-06-17 20:00 | 116325 | | |
| 2026-06-17 19:00 | 101506 | | |
| 2026-06-17 18:00 | 91550 | | |
| 2026-06-17 17:00 | 85500 | | |
| 2026-06-17 16:00 | 79825 | | |
| 2026-06-17 15:00 | 72487 | | |
| 2026-06-17 14:00 | 67438 | | |
| 2026-06-17 13:00 | 72650 | | |
| 2026-06-17 12:00 | 88019 | | |
| 2026-06-17 11:00 | 103513 | | |
| 2026-06-17 10:00 | 112900 | | |
| 2026-06-17 09:00 | 118388 | | |
| 2026-06-17 08:00 | 123006 | | |
| 2026-06-17 07:00 | 127019 | | |
| 2026-06-17 06:00 | 129281 | | |
| 2026-06-17 05:00 | 129188 | | |
| 2026-06-17 04:00 | 128412 | | |
| 2026-06-17 03:00 | 129275 | | |
| 2026-06-17 02:00 | 132588 | | |
| 2026-06-17 01:00 | 138881 | | |
| 2026-06-17 00:00 | 149150 | | |
| 2026-06-16 23:00 | 161681 | | |
| 2026-06-16 22:00 | 170775 | | |
| 2026-06-16 21:00 | 172906 | | |
| 2026-06-16 20:00 | 170463 | | |
| 2026-06-16 19:00 | 167806 | | |
| 2026-06-16 18:00 | 166600 | | |
| 2026-06-16 17:00 | 165644 | | |
| 2026-06-16 16:00 | 164688 | | |
| 2026-06-16 15:00 | 163338 | | |
| 2026-06-16 14:00 | 160050 | | |
| 2026-06-16 13:00 | 155975 | | |
| 2026-06-16 12:00 | 151438 | | |
| 2026-06-16 11:00 | 144750 | | |
| 2026-06-16 10:00 | 137081 | | |
| 2026-06-16 09:00 | 129019 | | |
| 2026-06-16 08:00 | 122650 | | |
| 2026-06-16 07:00 | 124487 | | |
| 2026-06-16 06:00 | 132694 | | |
| 2026-06-16 05:00 | 138919 | | |
| 2026-06-16 04:00 | 142887 | | |
| 2026-06-16 03:00 | 147262 | | |
| 2026-06-16 02:00 | 151831 | | |
| 2026-06-16 01:00 | 159100 | | |
| 2026-06-16 00:00 | 170781 | | |
| 2026-06-15 23:00 | 180738 | | |
| 2026-06-15 22:00 | 183644 | | |
| 2026-06-15 21:00 | 183731 | | |
| 2026-06-15 20:00 | 184931 | | |
| 2026-06-15 19:00 | 185262 | | |
| 2026-06-15 18:00 | 183969 | | |
| 2026-06-15 17:00 | 180662 | | |