COLUMBIA--GRAND COULEE DAM (GCDW1)
| Observed |
| Date/Time (PST) | Discharge |
| 2025-12-31 00:00 | 127625 | | |
| 2025-12-30 23:00 | 139231 | | |
| 2025-12-30 22:00 | 151244 | | |
| 2025-12-30 21:00 | 156544 | | |
| 2025-12-30 20:00 | 156050 | | |
| 2025-12-30 19:00 | 153625 | | |
| 2025-12-30 18:00 | 147644 | | |
| 2025-12-30 17:00 | 136769 | | |
| 2025-12-30 16:00 | 126362 | | |
| 2025-12-30 15:00 | 121731 | | |
| 2025-12-30 14:00 | 123144 | | |
| 2025-12-30 13:00 | 128594 | | |
| 2025-12-30 12:00 | 134550 | | |
| 2025-12-30 11:00 | 138119 | | |
| 2025-12-30 10:00 | 140350 | | |
| 2025-12-30 09:00 | 141456 | | |
| 2025-12-30 08:00 | 138312 | | |
| 2025-12-30 07:00 | 132269 | | |
| 2025-12-30 06:00 | 129050 | | |
| 2025-12-30 05:00 | 129506 | | |
| 2025-12-30 04:00 | 129925 | | |
| 2025-12-30 03:00 | 128619 | | |
| 2025-12-30 02:00 | 126469 | | |
| 2025-12-30 01:00 | 123650 | | |
| 2025-12-30 00:00 | 120981 | | |
| 2025-12-29 23:00 | 122312 | | |
| 2025-12-29 22:00 | 130137 | | |
| 2025-12-29 21:00 | 141306 | | |
| 2025-12-29 20:00 | 149769 | | |
| 2025-12-29 19:00 | 152356 | | |
| 2025-12-29 18:00 | 148894 | | |
| 2025-12-29 17:00 | 137881 | | |
| 2025-12-29 16:00 | 121075 | | |
| 2025-12-29 15:00 | 108188 | | |
| 2025-12-29 14:00 | 105950 | | |
| 2025-12-29 13:00 | 110950 | | |
| 2025-12-29 12:00 | 117831 | | |
| 2025-12-29 11:00 | 125287 | | |
| 2025-12-29 10:00 | 133281 | | |
| 2025-12-29 09:00 | 138200 | | |
| 2025-12-29 08:00 | 135575 | | |
| 2025-12-29 07:00 | 126888 | | |
| 2025-12-29 06:00 | 116013 | | |
| 2025-12-29 05:00 | 104306 | | |
| 2025-12-29 04:00 | 94056 | | |
| 2025-12-29 03:00 | 88206 | | |
| 2025-12-29 02:00 | 87700 | | |
| 2025-12-29 01:00 | 92975 | | |
| 2025-12-29 00:00 | 103188 | | |
| 2025-12-28 23:00 | 115638 | | |
| 2025-12-28 22:00 | 127612 | | |
| 2025-12-28 21:00 | 136456 | | |
| 2025-12-28 20:00 | 140863 | | |
| 2025-12-28 19:00 | 141912 | | |
| 2025-12-28 18:00 | 140006 | | |
| 2025-12-28 17:00 | 132188 | | |
| 2025-12-28 16:00 | 116750 | | |
| 2025-12-28 15:00 | 99669 | | |
| 2025-12-28 14:00 | 89869 | | |
| 2025-12-28 13:00 | 92106 | | |
| 2025-12-28 12:00 | 104581 | | |
| 2025-12-28 11:00 | 119312 | | |
| 2025-12-28 10:00 | 131188 | | |
| 2025-12-28 09:00 | 140925 | | |
| 2025-12-28 08:00 | 147119 | | |
| 2025-12-28 07:00 | 146044 | | |
| 2025-12-28 06:00 | 136444 | | |
| 2025-12-28 05:00 | 121356 | | |
| 2025-12-28 04:00 | 107531 | | |
| 2025-12-28 03:00 | 100625 | | |
| 2025-12-28 02:00 | 102356 | | |
| 2025-12-28 01:00 | 112606 | | |
| 2025-12-28 00:00 | 128938 | | |
| 2025-12-27 23:00 | 146769 | | |
| 2025-12-27 22:00 | 162100 | | |
| 2025-12-27 21:00 | 171175 | | |
| 2025-12-27 20:00 | 173400 | | |
| 2025-12-27 19:00 | 172100 | | |
| 2025-12-27 18:00 | 165456 | | |
| 2025-12-27 17:00 | 149081 | | |
| 2025-12-27 16:00 | 128406 | | |
| 2025-12-27 15:00 | 114075 | | |
| 2025-12-27 14:00 | 108906 | | |
| 2025-12-27 13:00 | 108144 | | |
| 2025-12-27 12:00 | 108269 | | |
| 2025-12-27 11:00 | 108806 | | |
| 2025-12-27 10:00 | 108675 | | |
| 2025-12-27 09:00 | 106281 | | |
| 2025-12-27 08:00 | 101544 | | |
| 2025-12-27 07:00 | 96481 | | |
| 2025-12-27 06:00 | 93131 | | |
| 2025-12-27 05:00 | 91213 | | |
| 2025-12-27 04:00 | 89744 | | |
| 2025-12-27 03:00 | 89213 | | |
| 2025-12-27 02:00 | 91781 | | |
| 2025-12-27 01:00 | 99269 | | |
| 2025-12-27 00:00 | 109062 | | |
| 2025-12-26 23:00 | 116556 | | |
| 2025-12-26 22:00 | 121869 | | |
| 2025-12-26 21:00 | 127419 | | |
| 2025-12-26 20:00 | 132944 | | |
| 2025-12-26 19:00 | 137050 | | |
| 2025-12-26 18:00 | 138344 | | |
| 2025-12-26 17:00 | 134300 | | |
| 2025-12-26 16:00 | 124594 | | |
| 2025-12-26 15:00 | 115319 | | |
| 2025-12-26 14:00 | 112819 | | |
| 2025-12-26 13:00 | 116037 | | |
| 2025-12-26 12:00 | 120569 | | |
| 2025-12-26 11:00 | 124550 | | |
| 2025-12-26 10:00 | 128300 | | |
| 2025-12-26 09:00 | 131775 | | |
| 2025-12-26 08:00 | 133519 | | |
| 2025-12-26 07:00 | 132619 | | |
| 2025-12-26 06:00 | 129512 | | |
| 2025-12-26 05:00 | 124156 | | |
| 2025-12-26 04:00 | 117519 | | |
| 2025-12-26 03:00 | 112969 | | |
| 2025-12-26 02:00 | 112013 | | |
| 2025-12-26 01:00 | 112500 | | |
| 2025-12-26 00:00 | 113100 | | |
| 2025-12-25 23:00 | 114700 | | |
| 2025-12-25 22:00 | 117287 | | |
| 2025-12-25 21:00 | 120150 | | |
| 2025-12-25 20:00 | 123450 | | |
| 2025-12-25 19:00 | 126875 | | |
| 2025-12-25 18:00 | 127900 | | |
| 2025-12-25 17:00 | 122662 | | |
| 2025-12-25 16:00 | 111044 | | |
| 2025-12-25 15:00 | 99862 | | |
| 2025-12-25 14:00 | 96031 | | |
| 2025-12-25 13:00 | 98275 | | |
| 2025-12-25 12:00 | 101844 | | |
| 2025-12-25 11:00 | 105875 | | |
| 2025-12-25 10:00 | 110594 | | |
| 2025-12-25 09:00 | 115000 | | |
| 2025-12-25 08:00 | 117231 | | |
| 2025-12-25 07:00 | 115075 | | |
| 2025-12-25 06:00 | 109188 | | |
| 2025-12-25 05:00 | 102594 | | |
| 2025-12-25 04:00 | 97725 | | |
| 2025-12-25 03:00 | 95125 | | |
| 2025-12-25 02:00 | 92612 | | |
| 2025-12-25 01:00 | 88275 | | |
| 2025-12-25 00:00 | 85638 | | |
| 2025-12-24 23:00 | 90219 | | |
| 2025-12-24 22:00 | 100531 | | |
| 2025-12-24 21:00 | 110050 | | |
| 2025-12-24 20:00 | 116362 | | |
| 2025-12-24 19:00 | 121725 | | |
| 2025-12-24 18:00 | 127575 | | |
| 2025-12-24 17:00 | 134062 | | |
| 2025-12-24 16:00 | 142425 | | |
| 2025-12-24 15:00 | 153613 | | |
| 2025-12-24 14:00 | 165175 | | |
| 2025-12-24 13:00 | 172662 | | |
| 2025-12-24 12:00 | 174919 | | |
| 2025-12-24 11:00 | 173675 | | |
| 2025-12-24 10:00 | 169294 | | |
| 2025-12-24 09:00 | 160012 | | |
| 2025-12-24 08:00 | 143637 | | |
| 2025-12-24 07:00 | 121544 | | |
| 2025-12-24 06:00 | 99888 | | |
| 2025-12-24 05:00 | 84531 | | |
| 2025-12-24 04:00 | 78269 | | |
| 2025-12-24 03:00 | 80769 | | |
| 2025-12-24 02:00 | 88081 | | |
| 2025-12-24 01:00 | 97294 | | |
| 2025-12-24 00:00 | 109400 | | |
| 2025-12-23 23:00 | 124925 | | |
| 2025-12-23 22:00 | 140381 | | |
| 2025-12-23 21:00 | 150219 | | |
| 2025-12-23 20:00 | 153969 | | |
| 2025-12-23 19:00 | 155887 | | |
| 2025-12-23 18:00 | 156463 | | |
| 2025-12-23 17:00 | 154238 | | |
| 2025-12-23 16:00 | 151969 | | |
| 2025-12-23 15:00 | 152269 | | |
| 2025-12-23 14:00 | 153925 | | |
| 2025-12-23 13:00 | 155800 | | |
| 2025-12-23 12:00 | 156912 | | |
| 2025-12-23 11:00 | 155681 | | |
| 2025-12-23 10:00 | 153894 | | |
| 2025-12-23 09:00 | 154988 | | |
| 2025-12-23 08:00 | 156125 | | |
| 2025-12-23 07:00 | 148012 | | |
| 2025-12-23 06:00 | 126963 | | |
| 2025-12-23 05:00 | 102088 | | |
| 2025-12-23 04:00 | 85000 | | |
| 2025-12-23 03:00 | 78569 | | |
| 2025-12-23 02:00 | 79019 | | |
| 2025-12-23 01:00 | 82825 | | |
| 2025-12-23 00:00 | 89763 | | |
| 2025-12-22 23:00 | 101419 | | |
| 2025-12-22 22:00 | 116263 | | |
| 2025-12-22 21:00 | 128713 | | |
| 2025-12-22 20:00 | 136887 | | |
| 2025-12-22 19:00 | 143419 | | |
| 2025-12-22 18:00 | 146950 | | |
| 2025-12-22 17:00 | 145131 | | |
| 2025-12-22 16:00 | 140869 | | |
| 2025-12-22 15:00 | 137825 | | |
| 2025-12-22 14:00 | 137631 | | |
| 2025-12-22 13:00 | 140275 | | |
| 2025-12-22 12:00 | 143512 | | |
| 2025-12-22 11:00 | 145725 | | |
| 2025-12-22 10:00 | 147619 | | |
| 2025-12-22 09:00 | 148463 | | |
| 2025-12-22 08:00 | 144831 | | |
| 2025-12-22 07:00 | 134863 | | |
| 2025-12-22 06:00 | 119794 | | |
| 2025-12-22 05:00 | 103150 | | |
| 2025-12-22 04:00 | 89450 | | |
| 2025-12-22 03:00 | 80275 | | |
| 2025-12-22 02:00 | 74725 | | |
| 2025-12-22 01:00 | 73531 | | |
| 2025-12-22 00:00 | 78981 | | |
| 2025-12-21 23:00 | 91362 | | |
| 2025-12-21 22:00 | 106619 | | |
| 2025-12-21 21:00 | 119769 | | |
| 2025-12-21 20:00 | 129912 | | |
| 2025-12-21 19:00 | 138025 | | |
| 2025-12-21 18:00 | 141606 | | |
| 2025-12-21 17:00 | 137106 | | |
| 2025-12-21 16:00 | 126900 | | |
| 2025-12-21 15:00 | 118031 | | |
| 2025-12-21 14:00 | 114650 | | |
| 2025-12-21 13:00 | 115400 | | |
| 2025-12-21 12:00 | 116206 | | |
| 2025-12-21 11:00 | 115188 | | |
| 2025-12-21 10:00 | 114656 | | |
| 2025-12-21 09:00 | 116406 | | |
| 2025-12-21 08:00 | 117894 | | |
| 2025-12-21 07:00 | 114744 | | |
| 2025-12-21 06:00 | 106819 | | |
| 2025-12-21 05:00 | 99450 | | |
| 2025-12-21 04:00 | 96731 | | |
| 2025-12-21 03:00 | 97706 | | |
| 2025-12-21 02:00 | 99787 | | |
| 2025-12-21 01:00 | 102737 | | |
| 2025-12-21 00:00 | 107888 | | |
| 2025-12-20 23:00 | 114181 | | |
| 2025-12-20 22:00 | 118656 | | |
| 2025-12-20 21:00 | 121131 | | |
| 2025-12-20 20:00 | 123938 | | |
| 2025-12-20 19:00 | 126838 | | |
| 2025-12-20 18:00 | 126088 | | |
| 2025-12-20 17:00 | 118675 | | |
| 2025-12-20 16:00 | 106900 | | |