COLUMBIA--GRAND COULEE DAM (GCDW1)
| Observed |
| Date/Time (PST) | Discharge |
| 2025-12-07 02:00 | 86662 | | |
| 2025-12-07 01:00 | 91856 | | |
| 2025-12-07 00:00 | 97675 | | |
| 2025-12-06 23:00 | 99631 | | |
| 2025-12-06 22:00 | 98944 | | |
| 2025-12-06 21:00 | 102706 | | |
| 2025-12-06 20:00 | 113994 | | |
| 2025-12-06 19:00 | 126956 | | |
| 2025-12-06 18:00 | 132213 | | |
| 2025-12-06 17:00 | 125781 | | |
| 2025-12-06 16:00 | 111138 | | |
| 2025-12-06 15:00 | 96194 | | |
| 2025-12-06 14:00 | 88156 | | |
| 2025-12-06 13:00 | 87344 | | |
| 2025-12-06 12:00 | 89544 | | |
| 2025-12-06 11:00 | 91850 | | |
| 2025-12-06 10:00 | 93138 | | |
| 2025-12-06 09:00 | 93625 | | |
| 2025-12-06 08:00 | 94375 | | |
| 2025-12-06 07:00 | 96031 | | |
| 2025-12-06 06:00 | 97625 | | |
| 2025-12-06 05:00 | 97175 | | |
| 2025-12-06 04:00 | 95475 | | |
| 2025-12-06 03:00 | 95600 | | |
| 2025-12-06 02:00 | 97531 | | |
| 2025-12-06 01:00 | 99506 | | |
| 2025-12-06 00:00 | 101594 | | |
| 2025-12-05 23:00 | 102825 | | |
| 2025-12-05 22:00 | 103106 | | |
| 2025-12-05 21:00 | 105900 | | |
| 2025-12-05 20:00 | 111225 | | |
| 2025-12-05 19:00 | 115594 | | |
| 2025-12-05 18:00 | 117881 | | |
| 2025-12-05 17:00 | 116750 | | |
| 2025-12-05 16:00 | 112019 | | |
| 2025-12-05 15:00 | 109725 | | |
| 2025-12-05 14:00 | 113481 | | |
| 2025-12-05 13:00 | 118019 | | |
| 2025-12-05 12:00 | 119812 | | |
| 2025-12-05 11:00 | 120938 | | |
| 2025-12-05 10:00 | 121950 | | |
| 2025-12-05 09:00 | 122644 | | |
| 2025-12-05 08:00 | 123862 | | |
| 2025-12-05 07:00 | 124844 | | |
| 2025-12-05 06:00 | 124650 | | |
| 2025-12-05 05:00 | 123888 | | |
| 2025-12-05 04:00 | 123581 | | |
| 2025-12-05 03:00 | 124287 | | |
| 2025-12-05 02:00 | 124450 | | |
| 2025-12-05 01:00 | 121206 | | |
| 2025-12-05 00:00 | 116231 | | |
| 2025-12-04 23:00 | 114487 | | |
| 2025-12-04 22:00 | 115800 | | |
| 2025-12-04 21:00 | 116850 | | |
| 2025-12-04 20:00 | 116944 | | |
| 2025-12-04 19:00 | 116263 | | |
| 2025-12-04 18:00 | 113906 | | |
| 2025-12-04 17:00 | 108831 | | |
| 2025-12-04 16:00 | 102656 | | |
| 2025-12-04 15:00 | 99081 | | |
| 2025-12-04 14:00 | 97900 | | |
| 2025-12-04 13:00 | 95831 | | |
| 2025-12-04 12:00 | 93225 | | |
| 2025-12-04 11:00 | 92069 | | |
| 2025-12-04 10:00 | 93075 | | |
| 2025-12-04 09:00 | 97912 | | |
| 2025-12-04 08:00 | 104806 | | |
| 2025-12-04 07:00 | 107681 | | |
| 2025-12-04 06:00 | 104356 | | |
| 2025-12-04 05:00 | 97775 | | |
| 2025-12-04 04:00 | 92219 | | |
| 2025-12-04 03:00 | 90412 | | |
| 2025-12-04 02:00 | 90631 | | |
| 2025-12-04 01:00 | 89175 | | |
| 2025-12-04 00:00 | 86344 | | |
| 2025-12-03 23:00 | 85431 | | |
| 2025-12-03 22:00 | 87987 | | |
| 2025-12-03 21:00 | 93963 | | |
| 2025-12-03 20:00 | 102531 | | |
| 2025-12-03 19:00 | 111475 | | |
| 2025-12-03 18:00 | 117737 | | |
| 2025-12-03 17:00 | 118906 | | |
| 2025-12-03 16:00 | 113956 | | |
| 2025-12-03 15:00 | 104938 | | |
| 2025-12-03 14:00 | 98094 | | |
| 2025-12-03 13:00 | 98456 | | |
| 2025-12-03 12:00 | 104975 | | |
| 2025-12-03 11:00 | 112500 | | |
| 2025-12-03 10:00 | 117244 | | |
| 2025-12-03 09:00 | 118794 | | |
| 2025-12-03 08:00 | 115594 | | |
| 2025-12-03 07:00 | 105200 | | |
| 2025-12-03 06:00 | 89244 | | |
| 2025-12-03 05:00 | 72619 | | |
| 2025-12-03 04:00 | 60281 | | |
| 2025-12-03 03:00 | 55087 | | |
| 2025-12-03 02:00 | 56581 | | |
| 2025-12-03 01:00 | 62888 | | |
| 2025-12-03 00:00 | 72375 | | |
| 2025-12-02 23:00 | 82456 | | |
| 2025-12-02 22:00 | 90181 | | |
| 2025-12-02 21:00 | 94850 | | |
| 2025-12-02 20:00 | 98213 | | |
| 2025-12-02 19:00 | 101031 | | |
| 2025-12-02 18:00 | 99431 | | |
| 2025-12-02 17:00 | 89537 | | |
| 2025-12-02 16:00 | 75725 | | |
| 2025-12-02 15:00 | 67181 | | |
| 2025-12-02 14:00 | 67700 | | |
| 2025-12-02 13:00 | 73569 | | |
| 2025-12-02 12:00 | 79419 | | |
| 2025-12-02 11:00 | 83506 | | |
| 2025-12-02 10:00 | 87838 | | |
| 2025-12-02 09:00 | 92787 | | |
| 2025-12-02 08:00 | 92987 | | |
| 2025-12-02 07:00 | 83925 | | |
| 2025-12-02 06:00 | 69406 | | |
| 2025-12-02 05:00 | 56263 | | |
| 2025-12-02 04:00 | 47625 | | |
| 2025-12-02 03:00 | 43869 | | |
| 2025-12-02 02:00 | 43456 | | |
| 2025-12-02 01:00 | 44094 | | |
| 2025-12-02 00:00 | 46750 | | |
| 2025-12-01 23:00 | 54600 | | |
| 2025-12-01 22:00 | 68362 | | |
| 2025-12-01 21:00 | 85362 | | |
| 2025-12-01 20:00 | 100306 | | |
| 2025-12-01 19:00 | 109169 | | |
| 2025-12-01 18:00 | 111556 | | |
| 2025-12-01 17:00 | 106656 | | |
| 2025-12-01 16:00 | 96044 | | |
| 2025-12-01 15:00 | 87987 | | |
| 2025-12-01 14:00 | 87938 | | |
| 2025-12-01 13:00 | 91237 | | |
| 2025-12-01 12:00 | 92756 | | |
| 2025-12-01 11:00 | 95456 | | |
| 2025-12-01 10:00 | 102631 | | |
| 2025-12-01 09:00 | 111169 | | |
| 2025-12-01 08:00 | 115381 | | |
| 2025-12-01 07:00 | 109306 | | |
| 2025-12-01 06:00 | 92487 | | |
| 2025-12-01 05:00 | 75244 | | |
| 2025-12-01 04:00 | 67388 | | |
| 2025-12-01 03:00 | 68850 | | |
| 2025-12-01 02:00 | 74431 | | |
| 2025-12-01 01:00 | 79444 | | |
| 2025-12-01 00:00 | 84050 | | |
| 2025-11-30 23:00 | 91812 | | |
| 2025-11-30 22:00 | 102606 | | |
| 2025-11-30 21:00 | 112856 | | |
| 2025-11-30 20:00 | 119950 | | |
| 2025-11-30 19:00 | 122669 | | |
| 2025-11-30 18:00 | 119744 | | |
| 2025-11-30 17:00 | 109669 | | |
| 2025-11-30 16:00 | 94794 | | |
| 2025-11-30 15:00 | 83312 | | |
| 2025-11-30 14:00 | 81263 | | |
| 2025-11-30 13:00 | 85881 | | |
| 2025-11-30 12:00 | 90744 | | |
| 2025-11-30 11:00 | 93838 | | |
| 2025-11-30 10:00 | 96412 | | |
| 2025-11-30 09:00 | 96737 | | |
| 2025-11-30 08:00 | 92650 | | |
| 2025-11-30 07:00 | 86919 | | |
| 2025-11-30 06:00 | 82994 | | |
| 2025-11-30 05:00 | 80725 | | |
| 2025-11-30 04:00 | 79331 | | |
| 2025-11-30 03:00 | 78950 | | |
| 2025-11-30 02:00 | 79662 | | |
| 2025-11-30 01:00 | 82550 | | |
| 2025-11-30 00:00 | 88081 | | |
| 2025-11-29 23:00 | 93425 | | |
| 2025-11-29 22:00 | 97162 | | |
| 2025-11-29 21:00 | 102669 | | |
| 2025-11-29 20:00 | 111156 | | |
| 2025-11-29 19:00 | 118550 | | |
| 2025-11-29 18:00 | 121944 | | |
| 2025-11-29 17:00 | 122094 | | |
| 2025-11-29 16:00 | 120575 | | |
| 2025-11-29 15:00 | 118394 | | |
| 2025-11-29 14:00 | 115925 | | |
| 2025-11-29 13:00 | 113062 | | |
| 2025-11-29 12:00 | 110050 | | |
| 2025-11-29 11:00 | 107769 | | |
| 2025-11-29 10:00 | 106000 | | |
| 2025-11-29 09:00 | 102525 | | |
| 2025-11-29 08:00 | 95688 | | |
| 2025-11-29 07:00 | 86675 | | |
| 2025-11-29 06:00 | 78069 | | |
| 2025-11-29 05:00 | 71431 | | |
| 2025-11-29 04:00 | 66906 | | |
| 2025-11-29 03:00 | 64144 | | |
| 2025-11-29 02:00 | 62562 | | |
| 2025-11-29 01:00 | 61406 | | |
| 2025-11-29 00:00 | 60531 | | |
| 2025-11-28 23:00 | 61144 | | |
| 2025-11-28 22:00 | 65575 | | |
| 2025-11-28 21:00 | 74231 | | |
| 2025-11-28 20:00 | 83287 | | |
| 2025-11-28 19:00 | 88794 | | |
| 2025-11-28 18:00 | 90963 | | |
| 2025-11-28 17:00 | 90794 | | |
| 2025-11-28 16:00 | 87562 | | |
| 2025-11-28 15:00 | 83263 | | |
| 2025-11-28 14:00 | 82050 | | |
| 2025-11-28 13:00 | 83981 | | |
| 2025-11-28 12:00 | 84844 | | |
| 2025-11-28 11:00 | 81487 | | |
| 2025-11-28 10:00 | 75388 | | |
| 2025-11-28 09:00 | 69062 | | |
| 2025-11-28 08:00 | 61750 | | |
| 2025-11-28 07:00 | 53438 | | |
| 2025-11-28 06:00 | 46969 | | |
| 2025-11-28 05:00 | 43506 | | |
| 2025-11-28 04:00 | 41844 | | |
| 2025-11-28 03:00 | 41250 | | |
| 2025-11-28 02:00 | 42350 | | |
| 2025-11-28 01:00 | 45725 | | |
| 2025-11-28 00:00 | 50519 | | |
| 2025-11-27 23:00 | 55581 | | |
| 2025-11-27 22:00 | 60125 | | |
| 2025-11-27 21:00 | 63206 | | |
| 2025-11-27 20:00 | 65213 | | |
| 2025-11-27 19:00 | 67681 | | |
| 2025-11-27 18:00 | 70619 | | |
| 2025-11-27 17:00 | 72275 | | |
| 2025-11-27 16:00 | 71525 | | |
| 2025-11-27 15:00 | 69994 | | |
| 2025-11-27 14:00 | 71088 | | |
| 2025-11-27 13:00 | 75581 | | |
| 2025-11-27 12:00 | 79713 | | |
| 2025-11-27 11:00 | 80475 | | |
| 2025-11-27 10:00 | 78275 | | |
| 2025-11-27 09:00 | 73338 | | |
| 2025-11-27 08:00 | 67287 | | |
| 2025-11-27 07:00 | 63300 | | |
| 2025-11-27 06:00 | 60469 | | |
| 2025-11-27 05:00 | 56281 | | |
| 2025-11-27 04:00 | 52206 | | |
| 2025-11-27 03:00 | 51138 | | |
| 2025-11-27 02:00 | 54006 | | |
| 2025-11-27 01:00 | 60350 | | |
| 2025-11-27 00:00 | 67819 | | |
| 2025-11-26 23:00 | 72994 | | |
| 2025-11-26 22:00 | 75794 | | |
| 2025-11-26 21:00 | 79206 | | |
| 2025-11-26 20:00 | 84306 | | |
| 2025-11-26 19:00 | 89494 | | |
| 2025-11-26 18:00 | 92900 | | |
| 2025-11-26 17:00 | 92906 | | |
| 2025-11-26 16:00 | 89100 | | |