COLUMBIA--GRAND COULEE DAM (GCDW1)
| Observed |
| Date/Time (PST) | Discharge |
| 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 | | |
| 2025-11-19 15:00 | 93494 | | |
| 2025-11-19 14:00 | 90963 | | |
| 2025-11-19 13:00 | 96513 | | |
| 2025-11-19 12:00 | 103425 | | |
| 2025-11-19 11:00 | 108306 | | |
| 2025-11-19 10:00 | 114356 | | |
| 2025-11-19 09:00 | 123194 | | |
| 2025-11-19 08:00 | 128069 | | |
| 2025-11-19 07:00 | 120856 | | |
| 2025-11-19 06:00 | 101575 | | |
| 2025-11-19 05:00 | 79112 | | |
| 2025-11-19 04:00 | 64225 | | |
| 2025-11-19 03:00 | 59438 | | |
| 2025-11-19 02:00 | 60650 | | |
| 2025-11-19 01:00 | 66219 | | |
| 2025-11-19 00:00 | 76312 | | |
| 2025-11-18 23:00 | 90438 | | |
| 2025-11-18 22:00 | 107619 | | |
| 2025-11-18 21:00 | 124694 | | |
| 2025-11-18 20:00 | 138094 | | |
| 2025-11-18 19:00 | 145931 | | |
| 2025-11-18 18:00 | 145412 | | |
| 2025-11-18 17:00 | 134725 | | |
| 2025-11-18 16:00 | 118681 | | |
| 2025-11-18 15:00 | 106888 | | |
| 2025-11-18 14:00 | 104588 | | |
| 2025-11-18 13:00 | 107644 | | |
| 2025-11-18 12:00 | 110400 | | |
| 2025-11-18 11:00 | 112513 | | |
| 2025-11-18 10:00 | 115013 | | |
| 2025-11-18 09:00 | 116519 | | |
| 2025-11-18 08:00 | 111269 | | |
| 2025-11-18 07:00 | 94156 | | |
| 2025-11-18 06:00 | 71675 | | |
| 2025-11-18 05:00 | 55462 | | |
| 2025-11-18 04:00 | 47881 | | |
| 2025-11-18 03:00 | 45462 | | |
| 2025-11-18 02:00 | 46956 | | |
| 2025-11-18 01:00 | 52106 | | |
| 2025-11-18 00:00 | 58925 | | |
| 2025-11-17 23:00 | 65513 | | |
| 2025-11-17 22:00 | 73138 | | |
| 2025-11-17 21:00 | 83569 | | |
| 2025-11-17 20:00 | 95888 | | |
| 2025-11-17 19:00 | 107162 | | |
| 2025-11-17 18:00 | 111825 | | |
| 2025-11-17 17:00 | 105694 | | |
| 2025-11-17 16:00 | 93519 | | |
| 2025-11-17 15:00 | 84525 | | |
| 2025-11-17 14:00 | 82450 | | |
| 2025-11-17 13:00 | 85756 | | |
| 2025-11-17 12:00 | 91338 | | |
| 2025-11-17 11:00 | 95638 | | |
| 2025-11-17 10:00 | 97350 | | |
| 2025-11-17 09:00 | 97062 | | |
| 2025-11-17 08:00 | 94144 | | |
| 2025-11-17 07:00 | 88425 | | |
| 2025-11-17 06:00 | 81369 | | |
| 2025-11-17 05:00 | 74506 | | |
| 2025-11-17 04:00 | 69525 | | |
| 2025-11-17 03:00 | 67244 | | |
| 2025-11-17 02:00 | 66400 | | |
| 2025-11-17 01:00 | 64856 | | |
| 2025-11-17 00:00 | 62538 | | |
| 2025-11-16 23:00 | 62388 | | |
| 2025-11-16 22:00 | 66750 | | |
| 2025-11-16 21:00 | 75875 | | |
| 2025-11-16 20:00 | 89438 | | |
| 2025-11-16 19:00 | 104069 | | |
| 2025-11-16 18:00 | 112062 | | |
| 2025-11-16 17:00 | 109256 | | |
| 2025-11-16 16:00 | 100794 | | |
| 2025-11-16 15:00 | 94088 | | |
| 2025-11-16 14:00 | 90281 | | |
| 2025-11-16 13:00 | 86950 | | |
| 2025-11-16 12:00 | 84969 | | |
| 2025-11-16 11:00 | 85025 | | |
| 2025-11-16 10:00 | 83175 | | |
| 2025-11-16 09:00 | 78031 | | |
| 2025-11-16 08:00 | 73537 | | |
| 2025-11-16 07:00 | 72100 | | |
| 2025-11-16 06:00 | 72763 | | |
| 2025-11-16 05:00 | 73825 | | |
| 2025-11-16 04:00 | 73831 | | |
| 2025-11-16 03:00 | 72375 | | |
| 2025-11-16 02:00 | 70319 | | |
| 2025-11-16 01:00 | 68456 | | |
| 2025-11-16 00:00 | 67588 | | |
| 2025-11-15 23:00 | 69169 | | |
| 2025-11-15 22:00 | 74031 | | |
| 2025-11-15 21:00 | 81625 | | |
| 2025-11-15 20:00 | 90144 | | |
| 2025-11-15 19:00 | 97275 | | |
| 2025-11-15 18:00 | 101469 | | |
| 2025-11-15 17:00 | 101919 | | |
| 2025-11-15 16:00 | 97812 | | |