COLUMBIA--WANAPUM DAM (WANW1)
| Observed |
| Date/Time (PDT) | Discharge |
| 2026-06-26 19:00 | 154469 | | |
| 2026-06-26 18:00 | 145613 | | |
| 2026-06-26 17:00 | 130525 | | |
| 2026-06-26 16:00 | 120156 | | |
| 2026-06-26 15:00 | 121537 | | |
| 2026-06-26 14:00 | 124725 | | |
| 2026-06-26 13:00 | 123225 | | |
| 2026-06-26 12:00 | 124475 | | |
| 2026-06-26 11:00 | 132363 | | |
| 2026-06-26 10:00 | 142500 | | |
| 2026-06-26 09:00 | 150450 | | |
| 2026-06-26 08:00 | 154988 | | |
| 2026-06-26 07:00 | 157037 | | |
| 2026-06-26 06:00 | 156031 | | |
| 2026-06-26 05:00 | 151250 | | |
| 2026-06-26 04:00 | 144956 | | |
| 2026-06-26 03:00 | 140287 | | |
| 2026-06-26 02:00 | 140713 | | |
| 2026-06-26 01:00 | 145956 | | |
| 2026-06-26 00:00 | 149981 | | |
| 2026-06-25 23:00 | 151925 | | |
| 2026-06-25 22:00 | 155494 | | |
| 2026-06-25 21:00 | 158425 | | |
| 2026-06-25 20:00 | 157525 | | |
| 2026-06-25 19:00 | 152906 | | |
| 2026-06-25 18:00 | 143244 | | |
| 2026-06-25 17:00 | 129537 | | |
| 2026-06-25 16:00 | 119013 | | |
| 2026-06-25 15:00 | 115644 | | |
| 2026-06-25 14:00 | 116550 | | |
| 2026-06-25 13:00 | 121100 | | |
| 2026-06-25 12:00 | 129238 | | |
| 2026-06-25 11:00 | 136350 | | |
| 2026-06-25 10:00 | 140037 | | |
| 2026-06-25 09:00 | 142762 | | |
| 2026-06-25 08:00 | 146131 | | |
| 2026-06-25 07:00 | 148500 | | |
| 2026-06-25 06:00 | 146938 | | |
| 2026-06-25 05:00 | 140756 | | |
| 2026-06-25 04:00 | 134425 | | |
| 2026-06-25 03:00 | 133675 | | |
| 2026-06-25 02:00 | 137356 | | |
| 2026-06-25 01:00 | 139550 | | |
| 2026-06-25 00:00 | 140181 | | |
| 2026-06-24 23:00 | 144250 | | |
| 2026-06-24 22:00 | 151637 | | |
| 2026-06-24 21:00 | 157762 | | |
| 2026-06-24 20:00 | 159944 | | |
| 2026-06-24 19:00 | 156719 | | |
| 2026-06-24 18:00 | 149287 | | |
| 2026-06-24 17:00 | 143556 | | |
| 2026-06-24 16:00 | 143044 | | |
| 2026-06-24 15:00 | 146275 | | |
| 2026-06-24 14:00 | 151631 | | |
| 2026-06-24 13:00 | 155519 | | |
| 2026-06-24 12:00 | 153519 | | |
| 2026-06-24 11:00 | 148506 | | |
| 2026-06-24 10:00 | 147012 | | |
| 2026-06-24 09:00 | 148356 | | |
| 2026-06-24 08:00 | 147331 | | |
| 2026-06-24 07:00 | 143069 | | |
| 2026-06-24 06:00 | 137894 | | |
| 2026-06-24 05:00 | 135069 | | |
| 2026-06-24 04:00 | 137738 | | |
| 2026-06-24 03:00 | 145256 | | |
| 2026-06-24 02:00 | 154469 | | |
| 2026-06-24 01:00 | 161588 | | |
| 2026-06-24 00:00 | 164356 | | |
| 2026-06-23 23:00 | 164869 | | |
| 2026-06-23 22:00 | 165625 | | |
| 2026-06-23 21:00 | 166438 | | |
| 2026-06-23 20:00 | 166287 | | |
| 2026-06-23 19:00 | 165394 | | |
| 2026-06-23 18:00 | 164644 | | |
| 2026-06-23 17:00 | 163200 | | |
| 2026-06-23 16:00 | 160306 | | |
| 2026-06-23 15:00 | 157481 | | |
| 2026-06-23 14:00 | 156144 | | |
| 2026-06-23 13:00 | 155894 | | |
| 2026-06-23 12:00 | 155425 | | |
| 2026-06-23 11:00 | 153475 | | |
| 2026-06-23 10:00 | 148562 | | |
| 2026-06-23 09:00 | 140938 | | |
| 2026-06-23 08:00 | 135394 | | |
| 2026-06-23 07:00 | 135650 | | |
| 2026-06-23 06:00 | 139094 | | |
| 2026-06-23 05:00 | 140581 | | |
| 2026-06-23 04:00 | 135019 | | |
| 2026-06-23 03:00 | 124638 | | |
| 2026-06-23 02:00 | 122219 | | |
| 2026-06-23 01:00 | 132294 | | |
| 2026-06-23 00:00 | 143356 | | |
| 2026-06-22 23:00 | 146569 | | |
| 2026-06-22 22:00 | 146569 | | |
| 2026-06-22 21:00 | 149569 | | |
| 2026-06-22 20:00 | 149975 | | |
| 2026-06-22 19:00 | 141325 | | |
| 2026-06-22 18:00 | 131794 | | |
| 2026-06-22 17:00 | 128988 | | |
| 2026-06-22 16:00 | 126438 | | |
| 2026-06-22 15:00 | 119419 | | |
| 2026-06-22 14:00 | 112725 | | |
| 2026-06-22 13:00 | 111794 | | |
| 2026-06-22 12:00 | 118000 | | |
| 2026-06-22 11:00 | 126263 | | |
| 2026-06-22 10:00 | 128619 | | |
| 2026-06-22 09:00 | 124763 | | |
| 2026-06-22 08:00 | 120169 | | |
| 2026-06-22 07:00 | 115662 | | |
| 2026-06-22 06:00 | 109500 | | |
| 2026-06-22 05:00 | 102656 | | |
| 2026-06-22 04:00 | 96688 | | |
| 2026-06-22 03:00 | 93394 | | |
| 2026-06-22 02:00 | 95250 | | |
| 2026-06-22 01:00 | 103694 | | |
| 2026-06-22 00:00 | 114994 | | |
| 2026-06-21 23:00 | 120250 | | |
| 2026-06-21 22:00 | 118312 | | |
| 2026-06-21 21:00 | 116550 | | |
| 2026-06-21 20:00 | 115325 | | |
| 2026-06-21 19:00 | 110081 | | |
| 2026-06-21 18:00 | 101906 | | |
| 2026-06-21 17:00 | 94412 | | |
| 2026-06-21 16:00 | 90475 | | |
| 2026-06-21 15:00 | 93013 | | |
| 2026-06-21 14:00 | 99881 | | |
| 2026-06-21 13:00 | 103194 | | |
| 2026-06-21 12:00 | 99406 | | |
| 2026-06-21 11:00 | 92750 | | |
| 2026-06-21 10:00 | 87312 | | |
| 2026-06-21 09:00 | 84394 | | |
| 2026-06-21 08:00 | 86969 | | |
| 2026-06-21 07:00 | 96006 | | |
| 2026-06-21 06:00 | 104119 | | |
| 2026-06-21 05:00 | 104250 | | |
| 2026-06-21 04:00 | 99394 | | |
| 2026-06-21 03:00 | 96275 | | |
| 2026-06-21 02:00 | 99000 | | |
| 2026-06-21 01:00 | 110425 | | |
| 2026-06-21 00:00 | 128769 | | |
| 2026-06-20 23:00 | 145556 | | |
| 2026-06-20 22:00 | 155344 | | |
| 2026-06-20 21:00 | 159444 | | |
| 2026-06-20 20:00 | 157137 | | |
| 2026-06-20 19:00 | 147806 | | |
| 2026-06-20 18:00 | 137988 | | |
| 2026-06-20 17:00 | 132869 | | |
| 2026-06-20 16:00 | 129994 | | |
| 2026-06-20 15:00 | 125919 | | |
| 2026-06-20 14:00 | 121175 | | |
| 2026-06-20 13:00 | 118550 | | |
| 2026-06-20 12:00 | 119037 | | |
| 2026-06-20 11:00 | 120463 | | |
| 2026-06-20 10:00 | 119550 | | |
| 2026-06-20 09:00 | 117231 | | |
| 2026-06-20 08:00 | 118775 | | |
| 2026-06-20 07:00 | 123825 | | |
| 2026-06-20 06:00 | 127275 | | |
| 2026-06-20 05:00 | 130169 | | |
| 2026-06-20 04:00 | 135094 | | |
| 2026-06-20 03:00 | 138250 | | |
| 2026-06-20 02:00 | 135881 | | |
| 2026-06-20 01:00 | 129200 | | |
| 2026-06-20 00:00 | 124469 | | |
| 2026-06-19 23:00 | 129144 | | |
| 2026-06-19 22:00 | 140669 | | |
| 2026-06-19 21:00 | 149863 | | |
| 2026-06-19 20:00 | 154100 | | |
| 2026-06-19 19:00 | 156150 | | |
| 2026-06-19 18:00 | 157619 | | |
| 2026-06-19 17:00 | 157537 | | |
| 2026-06-19 16:00 | 154794 | | |
| 2026-06-19 15:00 | 150125 | | |
| 2026-06-19 14:00 | 146238 | | |
| 2026-06-19 13:00 | 145512 | | |
| 2026-06-19 12:00 | 146244 | | |
| 2026-06-19 11:00 | 145719 | | |
| 2026-06-19 10:00 | 144044 | | |
| 2026-06-19 09:00 | 142144 | | |
| 2026-06-19 08:00 | 140637 | | |
| 2026-06-19 07:00 | 136619 | | |
| 2026-06-19 06:00 | 125112 | | |
| 2026-06-19 05:00 | 111269 | | |
| 2026-06-19 04:00 | 106763 | | |
| 2026-06-19 03:00 | 112656 | | |
| 2026-06-19 02:00 | 122400 | | |
| 2026-06-19 01:00 | 132450 | | |
| 2026-06-19 00:00 | 139575 | | |
| 2026-06-18 23:00 | 140594 | | |
| 2026-06-18 22:00 | 138150 | | |
| 2026-06-18 21:00 | 137719 | | |
| 2026-06-18 20:00 | 138963 | | |
| 2026-06-18 19:00 | 137688 | | |
| 2026-06-18 18:00 | 134887 | | |
| 2026-06-18 17:00 | 133838 | | |
| 2026-06-18 16:00 | 134350 | | |
| 2026-06-18 15:00 | 135631 | | |
| 2026-06-18 14:00 | 136762 | | |
| 2026-06-18 13:00 | 138475 | | |
| 2026-06-18 12:00 | 142650 | | |
| 2026-06-18 11:00 | 147281 | | |
| 2026-06-18 10:00 | 149363 | | |
| 2026-06-18 09:00 | 148319 | | |
| 2026-06-18 08:00 | 146306 | | |
| 2026-06-18 07:00 | 144562 | | |
| 2026-06-18 06:00 | 140281 | | |
| 2026-06-18 05:00 | 133637 | | |
| 2026-06-18 04:00 | 128463 | | |
| 2026-06-18 03:00 | 125662 | | |
| 2026-06-18 02:00 | 125706 | | |
| 2026-06-18 01:00 | 131000 | | |
| 2026-06-18 00:00 | 140262 | | |
| 2026-06-17 23:00 | 147544 | | |
| 2026-06-17 22:00 | 150562 | | |
| 2026-06-17 21:00 | 152688 | | |
| 2026-06-17 20:00 | 154113 | | |
| 2026-06-17 19:00 | 151131 | | |
| 2026-06-17 18:00 | 145938 | | |
| 2026-06-17 17:00 | 145175 | | |
| 2026-06-17 16:00 | 148731 | | |
| 2026-06-17 15:00 | 151919 | | |
| 2026-06-17 14:00 | 154456 | | |
| 2026-06-17 13:00 | 157956 | | |
| 2026-06-17 12:00 | 161162 | | |
| 2026-06-17 11:00 | 161944 | | |
| 2026-06-17 10:00 | 159431 | | |
| 2026-06-17 09:00 | 154756 | | |
| 2026-06-17 08:00 | 151537 | | |
| 2026-06-17 07:00 | 151781 | | |
| 2026-06-17 06:00 | 152838 | | |
| 2026-06-17 05:00 | 153194 | | |
| 2026-06-17 04:00 | 155125 | | |
| 2026-06-17 03:00 | 158062 | | |
| 2026-06-17 02:00 | 159450 | | |
| 2026-06-17 01:00 | 162012 | | |
| 2026-06-17 00:00 | 167031 | | |
| 2026-06-16 23:00 | 169231 | | |
| 2026-06-16 22:00 | 167481 | | |
| 2026-06-16 21:00 | 165781 | | |
| 2026-06-16 20:00 | 165306 | | |
| 2026-06-16 19:00 | 165006 | | |
| 2026-06-16 18:00 | 164037 | | |
| 2026-06-16 17:00 | 161369 | | |
| 2026-06-16 16:00 | 157181 | | |
| 2026-06-16 15:00 | 154319 | | |
| 2026-06-16 14:00 | 153863 | | |
| 2026-06-16 13:00 | 153162 | | |
| 2026-06-16 12:00 | 151525 | | |
| 2026-06-16 11:00 | 149644 | | |
| 2026-06-16 10:00 | 146556 | | |
| 2026-06-16 09:00 | 144162 | | |
| 2026-06-16 08:00 | 146581 | | |
| 2026-06-16 07:00 | 153262 | | |
| 2026-06-16 06:00 | 157975 | | |
| 2026-06-16 05:00 | 156688 | | |
| 2026-06-16 04:00 | 155856 | | |
| 2026-06-16 03:00 | 163706 | | |
| 2026-06-16 02:00 | 176706 | | |
| 2026-06-16 01:00 | 184875 | | |
| 2026-06-16 00:00 | 183919 | | |
| 2026-06-15 23:00 | 177963 | | |
| 2026-06-15 22:00 | 172756 | | |
| 2026-06-15 21:00 | 170012 | | |
| 2026-06-15 20:00 | 168756 | | |
| 2026-06-15 19:00 | 167438 | | |
| 2026-06-15 18:00 | 165669 | | |
| 2026-06-15 17:00 | 164294 | | |