COLUMBIA--GRAND COULEE DAM (GCDW1)
| Observed |
| Date/Time (PST) | Discharge |
| 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 | | |
| 2025-11-15 15:00 | 89862 | | |
| 2025-11-15 14:00 | 82369 | | |
| 2025-11-15 13:00 | 79056 | | |
| 2025-11-15 12:00 | 77700 | | |
| 2025-11-15 11:00 | 73775 | | |
| 2025-11-15 10:00 | 67006 | | |
| 2025-11-15 09:00 | 60587 | | |
| 2025-11-15 08:00 | 56619 | | |
| 2025-11-15 07:00 | 54375 | | |
| 2025-11-15 06:00 | 52356 | | |
| 2025-11-15 05:00 | 50663 | | |
| 2025-11-15 04:00 | 49969 | | |
| 2025-11-15 03:00 | 50344 | | |
| 2025-11-15 02:00 | 51306 | | |
| 2025-11-15 01:00 | 51981 | | |
| 2025-11-15 00:00 | 52938 | | |
| 2025-11-14 23:00 | 56087 | | |
| 2025-11-14 22:00 | 61444 | | |
| 2025-11-14 21:00 | 68206 | | |
| 2025-11-14 20:00 | 77237 | | |
| 2025-11-14 19:00 | 87056 | | |
| 2025-11-14 18:00 | 93562 | | |
| 2025-11-14 17:00 | 95581 | | |
| 2025-11-14 16:00 | 93963 | | |
| 2025-11-14 15:00 | 89394 | | |
| 2025-11-14 14:00 | 84331 | | |
| 2025-11-14 13:00 | 81287 | | |
| 2025-11-14 12:00 | 79562 | | |
| 2025-11-14 11:00 | 78019 | | |
| 2025-11-14 10:00 | 77856 | | |
| 2025-11-14 09:00 | 79362 | | |
| 2025-11-14 08:00 | 79119 | | |
| 2025-11-14 07:00 | 72894 | | |
| 2025-11-14 06:00 | 61894 | | |
| 2025-11-14 05:00 | 52562 | | |
| 2025-11-14 04:00 | 47900 | | |
| 2025-11-14 03:00 | 45581 | | |
| 2025-11-14 02:00 | 44025 | | |
| 2025-11-14 01:00 | 43788 | | |
| 2025-11-14 00:00 | 45106 | | |
| 2025-11-13 23:00 | 46906 | | |
| 2025-11-13 22:00 | 49369 | | |
| 2025-11-13 21:00 | 55081 | | |
| 2025-11-13 20:00 | 64756 | | |
| 2025-11-13 19:00 | 76787 | | |
| 2025-11-13 18:00 | 89325 | | |
| 2025-11-13 17:00 | 99275 | | |
| 2025-11-13 16:00 | 105081 | | |
| 2025-11-13 15:00 | 109287 | | |
| 2025-11-13 14:00 | 113062 | | |
| 2025-11-13 13:00 | 113119 | | |
| 2025-11-13 12:00 | 108325 | | |
| 2025-11-13 11:00 | 102188 | | |
| 2025-11-13 10:00 | 97713 | | |
| 2025-11-13 09:00 | 95525 | | |
| 2025-11-13 08:00 | 92369 | | |
| 2025-11-13 07:00 | 82225 | | |
| 2025-11-13 06:00 | 65131 | | |
| 2025-11-13 05:00 | 48969 | | |
| 2025-11-13 04:00 | 40056 | | |
| 2025-11-13 03:00 | 38062 | | |
| 2025-11-13 02:00 | 39419 | | |
| 2025-11-13 01:00 | 42019 | | |
| 2025-11-13 00:00 | 46650 | | |
| 2025-11-12 23:00 | 54250 | | |
| 2025-11-12 22:00 | 63925 | | |
| 2025-11-12 21:00 | 74231 | | |
| 2025-11-12 20:00 | 84131 | | |
| 2025-11-12 19:00 | 92250 | | |
| 2025-11-12 18:00 | 96406 | | |
| 2025-11-12 17:00 | 96819 | | |
| 2025-11-12 16:00 | 97006 | | |
| 2025-11-12 15:00 | 98544 | | |
| 2025-11-12 14:00 | 99656 | | |
| 2025-11-12 13:00 | 98794 | | |
| 2025-11-12 12:00 | 96756 | | |
| 2025-11-12 11:00 | 96300 | | |
| 2025-11-12 10:00 | 100456 | | |
| 2025-11-12 09:00 | 108075 | | |
| 2025-11-12 08:00 | 110356 | | |
| 2025-11-12 07:00 | 99825 | | |
| 2025-11-12 06:00 | 80638 | | |
| 2025-11-12 05:00 | 62350 | | |
| 2025-11-12 04:00 | 50250 | | |
| 2025-11-12 03:00 | 45025 | | |
| 2025-11-12 02:00 | 45219 | | |
| 2025-11-12 01:00 | 49081 | | |
| 2025-11-12 00:00 | 56031 | | |
| 2025-11-11 23:00 | 66037 | | |
| 2025-11-11 22:00 | 78487 | | |
| 2025-11-11 21:00 | 90831 | | |
| 2025-11-11 20:00 | 98931 | | |
| 2025-11-11 19:00 | 101856 | | |
| 2025-11-11 18:00 | 102138 | | |
| 2025-11-11 17:00 | 101575 | | |
| 2025-11-11 16:00 | 100819 | | |
| 2025-11-11 15:00 | 99675 | | |
| 2025-11-11 14:00 | 98206 | | |
| 2025-11-11 13:00 | 97650 | | |
| 2025-11-11 12:00 | 98219 | | |
| 2025-11-11 11:00 | 98475 | | |
| 2025-11-11 10:00 | 97769 | | |
| 2025-11-11 09:00 | 95875 | | |
| 2025-11-11 08:00 | 88900 | | |
| 2025-11-11 07:00 | 72775 | | |
| 2025-11-11 06:00 | 52663 | | |
| 2025-11-11 05:00 | 38250 | | |
| 2025-11-11 04:00 | 31781 | | |
| 2025-11-11 03:00 | 30031 | | |
| 2025-11-11 02:00 | 31087 | | |
| 2025-11-11 01:00 | 34031 | | |
| 2025-11-11 00:00 | 37819 | | |
| 2025-11-10 23:00 | 42575 | | |
| 2025-11-10 22:00 | 49337 | | |
| 2025-11-10 21:00 | 58163 | | |
| 2025-11-10 20:00 | 68706 | | |
| 2025-11-10 19:00 | 80431 | | |
| 2025-11-10 18:00 | 89669 | | |
| 2025-11-10 17:00 | 91431 | | |
| 2025-11-10 16:00 | 86631 | | |
| 2025-11-10 15:00 | 82463 | | |
| 2025-11-10 14:00 | 82406 | | |
| 2025-11-10 13:00 | 81669 | | |
| 2025-11-10 12:00 | 77625 | | |
| 2025-11-10 11:00 | 75000 | | |
| 2025-11-10 10:00 | 76969 | | |
| 2025-11-10 09:00 | 81394 | | |
| 2025-11-10 08:00 | 84031 | | |
| 2025-11-10 07:00 | 80294 | | |
| 2025-11-10 06:00 | 69406 | | |
| 2025-11-10 05:00 | 57350 | | |
| 2025-11-10 04:00 | 50675 | | |
| 2025-11-10 03:00 | 49913 | | |
| 2025-11-10 02:00 | 51712 | | |
| 2025-11-10 01:00 | 53850 | | |
| 2025-11-10 00:00 | 56237 | | |
| 2025-11-09 23:00 | 58531 | | |
| 2025-11-09 22:00 | 61269 | | |
| 2025-11-09 21:00 | 67600 | | |
| 2025-11-09 20:00 | 78138 | | |
| 2025-11-09 19:00 | 88825 | | |
| 2025-11-09 18:00 | 94713 | | |
| 2025-11-09 17:00 | 91787 | | |
| 2025-11-09 16:00 | 79644 | | |
| 2025-11-09 15:00 | 64325 | | |
| 2025-11-09 14:00 | 54606 | | |
| 2025-11-09 13:00 | 54056 | | |
| 2025-11-09 12:00 | 59444 | | |
| 2025-11-09 11:00 | 65794 | | |
| 2025-11-09 10:00 | 69275 | | |
| 2025-11-09 09:00 | 69956 | | |
| 2025-11-09 08:00 | 72075 | | |
| 2025-11-09 07:00 | 76169 | | |
| 2025-11-09 06:00 | 77019 | | |
| 2025-11-09 05:00 | 72819 | | |
| 2025-11-09 04:00 | 67925 | | |
| 2025-11-09 03:00 | 65688 | | |
| 2025-11-09 02:00 | 66119 | | |
| 2025-11-09 01:00 | 69200 | | |
| 2025-11-09 00:00 | 75081 | | |
| 2025-11-08 23:00 | 82556 | | |
| 2025-11-08 22:00 | 88750 | | |
| 2025-11-08 21:00 | 91144 | | |
| 2025-11-08 20:00 | 91281 | | |
| 2025-11-08 19:00 | 92606 | | |
| 2025-11-08 18:00 | 93688 | | |
| 2025-11-08 17:00 | 88787 | | |
| 2025-11-08 16:00 | 76850 | | |