COLUMBIA--GRAND COULEE DAM (GCDW1)
| Observed |
| Date/Time (PST) | Discharge |
| 2026-11-13 23:00 | 65806 | | |
| 2026-11-13 22:00 | 68425 | | |
| 2026-11-13 21:00 | 73044 | | |
| 2026-11-13 20:00 | 80444 | | |
| 2026-11-13 19:00 | 90625 | | |
| 2026-11-13 18:00 | 100450 | | |
| 2026-11-13 17:00 | 106931 | | |
| 2026-11-13 16:00 | 110294 | | |
| 2026-11-13 15:00 | 113025 | | |
| 2026-11-13 14:00 | 115975 | | |
| 2026-11-13 13:00 | 116194 | | |
| 2026-11-13 12:00 | 112019 | | |
| 2026-11-13 11:00 | 106631 | | |
| 2026-11-13 10:00 | 102994 | | |
| 2026-11-13 09:00 | 100250 | | |
| 2026-11-13 08:00 | 96206 | | |
| 2026-11-13 07:00 | 91037 | | |
| 2026-11-13 06:00 | 86181 | | |
| 2026-11-13 05:00 | 80081 | | |
| 2026-11-13 04:00 | 71150 | | |
| 2026-11-13 03:00 | 62875 | | |
| 2026-11-13 02:00 | 59975 | | |
| 2026-11-13 01:00 | 64350 | | |
| 2026-11-13 00:00 | 75400 | | |
| 2026-11-12 23:00 | 89638 | | |
| 2026-11-12 22:00 | 102731 | | |
| 2026-11-12 21:00 | 111919 | | |
| 2026-11-12 20:00 | 116431 | | |
| 2026-11-12 19:00 | 118019 | | |
| 2026-11-12 18:00 | 118100 | | |
| 2026-11-12 17:00 | 114650 | | |
| 2026-11-12 16:00 | 105825 | | |
| 2026-11-12 15:00 | 95537 | | |
| 2026-11-12 14:00 | 89838 | | |
| 2026-11-12 13:00 | 88469 | | |
| 2026-11-12 12:00 | 87581 | | |
| 2026-11-12 11:00 | 87144 | | |
| 2026-11-12 10:00 | 89269 | | |
| 2026-11-12 09:00 | 93862 | | |
| 2026-11-12 08:00 | 96869 | | |
| 2026-11-12 07:00 | 92700 | | |
| 2026-11-12 06:00 | 81681 | | |
| 2026-11-12 05:00 | 70912 | | |
| 2026-11-12 04:00 | 65525 | | |
| 2026-11-12 03:00 | 64781 | | |
| 2026-11-12 02:00 | 66800 | | |
| 2026-11-12 01:00 | 71725 | | |
| 2026-11-12 00:00 | 79775 | | |
| 2026-11-11 23:00 | 88575 | | |
| 2026-11-11 22:00 | 95325 | | |
| 2026-11-11 21:00 | 101075 | | |
| 2026-11-11 20:00 | 107513 | | |
| 2026-11-11 19:00 | 112287 | | |
| 2026-11-11 18:00 | 112263 | | |
| 2026-11-11 17:00 | 106562 | | |
| 2026-11-11 16:00 | 97375 | | |
| 2026-11-11 15:00 | 90481 | | |
| 2026-11-11 14:00 | 89331 | | |
| 2026-11-11 13:00 | 91338 | | |
| 2026-11-11 12:00 | 93400 | | |
| 2026-11-11 11:00 | 95162 | | |
| 2026-11-11 10:00 | 97356 | | |
| 2026-11-11 09:00 | 100875 | | |
| 2026-11-11 08:00 | 104469 | | |
| 2026-11-11 07:00 | 102650 | | |
| 2026-11-11 06:00 | 93125 | | |
| 2026-11-11 05:00 | 82400 | | |
| 2026-11-11 04:00 | 75719 | | |
| 2026-11-11 03:00 | 71744 | | |
| 2026-11-11 02:00 | 69456 | | |
| 2026-11-11 01:00 | 69388 | | |
| 2026-11-11 00:00 | 71225 | | |
| 2026-11-10 23:00 | 75469 | | |
| 2026-11-10 22:00 | 83275 | | |
| 2026-11-10 21:00 | 93181 | | |
| 2026-11-10 20:00 | 102338 | | |
| 2026-11-10 19:00 | 109769 | | |
| 2026-11-10 18:00 | 113944 | | |
| 2026-11-10 17:00 | 111419 | | |
| 2026-11-10 16:00 | 102388 | | |
| 2026-11-10 15:00 | 93431 | | |
| 2026-11-10 14:00 | 90000 | | |
| 2026-11-10 13:00 | 90656 | | |
| 2026-11-10 12:00 | 91812 | | |
| 2026-11-10 11:00 | 92287 | | |
| 2026-11-10 10:00 | 94069 | | |
| 2026-11-10 09:00 | 100325 | | |
| 2026-11-10 08:00 | 108425 | | |
| 2026-11-10 07:00 | 109600 | | |
| 2026-11-10 06:00 | 99819 | | |
| 2026-11-10 05:00 | 84856 | | |
| 2026-11-10 04:00 | 73400 | | |
| 2026-11-10 03:00 | 69438 | | |
| 2026-11-10 02:00 | 71819 | | |
| 2026-11-10 01:00 | 78381 | | |
| 2026-11-10 00:00 | 87744 | | |
| 2026-11-09 23:00 | 98106 | | |
| 2026-11-09 22:00 | 107287 | | |
| 2026-11-09 21:00 | 114456 | | |
| 2026-11-09 20:00 | 119894 | | |
| 2026-11-09 19:00 | 123625 | | |
| 2026-11-09 18:00 | 125581 | | |
| 2026-11-09 17:00 | 125406 | | |
| 2026-11-09 16:00 | 123394 | | |
| 2026-11-09 15:00 | 121725 | | |
| 2026-11-09 14:00 | 121062 | | |
| 2026-11-09 13:00 | 118838 | | |
| 2026-11-09 12:00 | 114269 | | |
| 2026-11-09 11:00 | 110325 | | |
| 2026-11-09 10:00 | 108756 | | |
| 2026-11-09 09:00 | 107356 | | |
| 2026-11-09 08:00 | 104225 | | |
| 2026-11-09 07:00 | 101112 | | |
| 2026-11-09 06:00 | 98600 | | |
| 2026-11-09 05:00 | 93306 | | |
| 2026-11-09 04:00 | 83469 | | |
| 2026-11-09 03:00 | 72450 | | |
| 2026-11-09 02:00 | 66419 | | |
| 2026-11-09 01:00 | 69175 | | |
| 2026-11-09 00:00 | 77956 | | |
| 2026-11-08 23:00 | 86669 | | |
| 2026-11-08 22:00 | 92625 | | |
| 2026-11-08 21:00 | 97244 | | |
| 2026-11-08 20:00 | 102256 | | |
| 2026-11-08 19:00 | 106494 | | |
| 2026-11-08 18:00 | 105856 | | |
| 2026-11-08 17:00 | 97975 | | |
| 2026-11-08 16:00 | 86425 | | |
| 2026-11-08 15:00 | 77794 | | |
| 2026-11-08 14:00 | 74938 | | |
| 2026-11-08 13:00 | 75681 | | |
| 2026-11-08 12:00 | 77244 | | |
| 2026-11-08 11:00 | 77650 | | |
| 2026-11-08 10:00 | 74381 | | |
| 2026-11-08 09:00 | 67575 | | |
| 2026-11-08 08:00 | 61337 | | |
| 2026-11-08 07:00 | 58000 | | |
| 2026-11-08 06:00 | 55381 | | |
| 2026-11-08 05:00 | 51106 | | |
| 2026-11-08 04:00 | 46875 | | |
| 2026-11-08 03:00 | 46337 | | |
| 2026-11-08 02:00 | 50425 | | |
| 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 | | |