COLUMBIA--GRAND COULEE DAM (GCDW1)
| Observed |
| Date/Time (PST) | Discharge |
| 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 | | |
| 2025-11-26 15:00 | 83869 | | |
| 2025-11-26 14:00 | 80406 | | |
| 2025-11-26 13:00 | 79756 | | |
| 2025-11-26 12:00 | 81100 | | |
| 2025-11-26 11:00 | 82781 | | |
| 2025-11-26 10:00 | 83006 | | |
| 2025-11-26 09:00 | 81725 | | |
| 2025-11-26 08:00 | 80388 | | |
| 2025-11-26 07:00 | 79200 | | |
| 2025-11-26 06:00 | 76300 | | |
| 2025-11-26 05:00 | 70162 | | |
| 2025-11-26 04:00 | 63431 | | |
| 2025-11-26 03:00 | 60625 | | |
| 2025-11-26 02:00 | 62631 | | |
| 2025-11-26 01:00 | 68306 | | |
| 2025-11-26 00:00 | 75900 | | |
| 2025-11-25 23:00 | 82481 | | |
| 2025-11-25 22:00 | 87575 | | |
| 2025-11-25 21:00 | 94244 | | |
| 2025-11-25 20:00 | 104963 | | |
| 2025-11-25 19:00 | 116987 | | |
| 2025-11-25 18:00 | 123938 | | |
| 2025-11-25 17:00 | 124756 | | |
| 2025-11-25 16:00 | 123713 | | |
| 2025-11-25 15:00 | 122438 | | |
| 2025-11-25 14:00 | 120825 | | |
| 2025-11-25 13:00 | 119669 | | |
| 2025-11-25 12:00 | 119062 | | |
| 2025-11-25 11:00 | 118731 | | |
| 2025-11-25 10:00 | 117944 | | |
| 2025-11-25 09:00 | 114431 | | |
| 2025-11-25 08:00 | 107269 | | |
| 2025-11-25 07:00 | 99144 | | |
| 2025-11-25 06:00 | 92075 | | |
| 2025-11-25 05:00 | 85294 | | |
| 2025-11-25 04:00 | 78769 | | |
| 2025-11-25 03:00 | 73825 | | |
| 2025-11-25 02:00 | 71244 | | |
| 2025-11-25 01:00 | 71469 | | |
| 2025-11-25 00:00 | 75650 | | |
| 2025-11-24 23:00 | 84069 | | |
| 2025-11-24 22:00 | 94875 | | |
| 2025-11-24 21:00 | 106588 | | |
| 2025-11-24 20:00 | 117256 | | |
| 2025-11-24 19:00 | 123344 | | |
| 2025-11-24 18:00 | 124131 | | |
| 2025-11-24 17:00 | 120594 | | |
| 2025-11-24 16:00 | 112194 | | |
| 2025-11-24 15:00 | 100581 | | |
| 2025-11-24 14:00 | 90144 | | |
| 2025-11-24 13:00 | 84744 | | |
| 2025-11-24 12:00 | 85550 | | |
| 2025-11-24 11:00 | 90287 | | |
| 2025-11-24 10:00 | 96281 | | |
| 2025-11-24 09:00 | 101394 | | |
| 2025-11-24 08:00 | 102013 | | |
| 2025-11-24 07:00 | 94994 | | |
| 2025-11-24 06:00 | 82425 | | |
| 2025-11-24 05:00 | 70213 | | |
| 2025-11-24 04:00 | 61425 | | |
| 2025-11-24 03:00 | 56188 | | |
| 2025-11-24 02:00 | 54631 | | |
| 2025-11-24 01:00 | 57094 | | |
| 2025-11-24 00:00 | 63356 | | |
| 2025-11-23 23:00 | 71231 | | |
| 2025-11-23 22:00 | 78306 | | |
| 2025-11-23 21:00 | 84287 | | |
| 2025-11-23 20:00 | 89938 | | |
| 2025-11-23 19:00 | 95369 | | |
| 2025-11-23 18:00 | 98188 | | |
| 2025-11-23 17:00 | 93862 | | |
| 2025-11-23 16:00 | 82419 | | |
| 2025-11-23 15:00 | 71525 | | |
| 2025-11-23 14:00 | 66881 | | |
| 2025-11-23 13:00 | 66794 | | |
| 2025-11-23 12:00 | 68519 | | |
| 2025-11-23 11:00 | 70706 | | |
| 2025-11-23 10:00 | 72081 | | |
| 2025-11-23 09:00 | 72763 | | |
| 2025-11-23 08:00 | 73119 | | |
| 2025-11-23 07:00 | 72250 | | |
| 2025-11-23 06:00 | 69312 | | |
| 2025-11-23 05:00 | 64688 | | |
| 2025-11-23 04:00 | 60913 | | |
| 2025-11-23 03:00 | 59506 | | |
| 2025-11-23 02:00 | 58812 | | |
| 2025-11-23 01:00 | 58906 | | |
| 2025-11-23 00:00 | 62019 | | |
| 2025-11-22 23:00 | 69287 | | |
| 2025-11-22 22:00 | 80537 | | |
| 2025-11-22 21:00 | 93694 | | |
| 2025-11-22 20:00 | 104713 | | |
| 2025-11-22 19:00 | 110438 | | |
| 2025-11-22 18:00 | 111306 | | |
| 2025-11-22 17:00 | 108081 | | |
| 2025-11-22 16:00 | 100356 | | |
| 2025-11-22 15:00 | 92206 | | |
| 2025-11-22 14:00 | 89119 | | |
| 2025-11-22 13:00 | 89450 | | |
| 2025-11-22 12:00 | 88175 | | |
| 2025-11-22 11:00 | 84869 | | |
| 2025-11-22 10:00 | 82569 | | |
| 2025-11-22 09:00 | 81850 | | |
| 2025-11-22 08:00 | 79975 | | |
| 2025-11-22 07:00 | 74800 | | |
| 2025-11-22 06:00 | 67775 | | |
| 2025-11-22 05:00 | 62737 | | |
| 2025-11-22 04:00 | 61031 | | |
| 2025-11-22 03:00 | 60894 | | |
| 2025-11-22 02:00 | 61600 | | |
| 2025-11-22 01:00 | 64062 | | |
| 2025-11-22 00:00 | 68019 | | |
| 2025-11-21 23:00 | 72438 | | |
| 2025-11-21 22:00 | 78056 | | |
| 2025-11-21 21:00 | 85894 | | |
| 2025-11-21 20:00 | 95588 | | |
| 2025-11-21 19:00 | 105194 | | |
| 2025-11-21 18:00 | 109987 | | |
| 2025-11-21 17:00 | 106775 | | |
| 2025-11-21 16:00 | 99306 | | |
| 2025-11-21 15:00 | 94081 | | |
| 2025-11-21 14:00 | 93506 | | |
| 2025-11-21 13:00 | 96219 | | |
| 2025-11-21 12:00 | 100631 | | |
| 2025-11-21 11:00 | 105037 | | |
| 2025-11-21 10:00 | 108175 | | |
| 2025-11-21 09:00 | 111144 | | |
| 2025-11-21 08:00 | 113688 | | |
| 2025-11-21 07:00 | 110494 | | |
| 2025-11-21 06:00 | 98338 | | |
| 2025-11-21 05:00 | 83256 | | |
| 2025-11-21 04:00 | 73244 | | |
| 2025-11-21 03:00 | 69575 | | |
| 2025-11-21 02:00 | 70612 | | |
| 2025-11-21 01:00 | 76331 | | |
| 2025-11-21 00:00 | 85119 | | |
| 2025-11-20 23:00 | 93500 | | |
| 2025-11-20 22:00 | 99963 | | |
| 2025-11-20 21:00 | 104675 | | |
| 2025-11-20 20:00 | 108037 | | |
| 2025-11-20 19:00 | 109963 | | |
| 2025-11-20 18:00 | 108925 | | |
| 2025-11-20 17:00 | 103406 | | |
| 2025-11-20 16:00 | 94931 | | |
| 2025-11-20 15:00 | 87812 | | |
| 2025-11-20 14:00 | 85069 | | |
| 2025-11-20 13:00 | 86700 | | |
| 2025-11-20 12:00 | 91287 | | |
| 2025-11-20 11:00 | 97269 | | |
| 2025-11-20 10:00 | 103150 | | |
| 2025-11-20 09:00 | 107431 | | |
| 2025-11-20 08:00 | 108506 | | |
| 2025-11-20 07:00 | 104144 | | |
| 2025-11-20 06:00 | 94206 | | |
| 2025-11-20 05:00 | 83194 | | |
| 2025-11-20 04:00 | 75794 | | |
| 2025-11-20 03:00 | 73144 | | |
| 2025-11-20 02:00 | 74275 | | |
| 2025-11-20 01:00 | 78600 | | |
| 2025-11-20 00:00 | 86175 | | |
| 2025-11-19 23:00 | 95588 | | |
| 2025-11-19 22:00 | 104838 | | |
| 2025-11-19 21:00 | 113700 | | |
| 2025-11-19 20:00 | 121444 | | |
| 2025-11-19 19:00 | 125438 | | |
| 2025-11-19 18:00 | 124200 | | |
| 2025-11-19 17:00 | 117056 | | |
| 2025-11-19 16:00 | 104681 | | |