COLUMBIA--GRAND COULEE DAM (GCDW1)
| Observed |
| Date/Time (PST) | Discharge |
| 2026-01-25 11:00 | 131738 | | |
| 2026-01-25 10:00 | 139300 | | |
| 2026-01-25 09:00 | 144900 | | |
| 2026-01-25 08:00 | 147963 | | |
| 2026-01-25 07:00 | 147938 | | |
| 2026-01-25 06:00 | 147944 | | |
| 2026-01-25 05:00 | 150787 | | |
| 2026-01-25 04:00 | 154494 | | |
| 2026-01-25 03:00 | 156431 | | |
| 2026-01-25 02:00 | 156012 | | |
| 2026-01-25 01:00 | 154088 | | |
| 2026-01-25 00:00 | 152919 | | |
| 2026-01-24 23:00 | 153275 | | |
| 2026-01-24 22:00 | 153481 | | |
| 2026-01-24 21:00 | 153544 | | |
| 2026-01-24 20:00 | 155081 | | |
| 2026-01-24 19:00 | 155412 | | |
| 2026-01-24 18:00 | 146750 | | |
| 2026-01-24 17:00 | 126806 | | |
| 2026-01-24 16:00 | 106281 | | |
| 2026-01-24 15:00 | 97369 | | |
| 2026-01-24 14:00 | 101056 | | |
| 2026-01-24 13:00 | 111869 | | |
| 2026-01-24 12:00 | 125606 | | |
| 2026-01-24 11:00 | 138769 | | |
| 2026-01-24 10:00 | 147838 | | |
| 2026-01-24 09:00 | 151700 | | |
| 2026-01-24 08:00 | 152281 | | |
| 2026-01-24 07:00 | 153000 | | |
| 2026-01-24 06:00 | 156131 | | |
| 2026-01-24 05:00 | 160156 | | |
| 2026-01-24 04:00 | 161069 | | |
| 2026-01-24 03:00 | 157213 | | |
| 2026-01-24 02:00 | 151769 | | |
| 2026-01-24 01:00 | 149056 | | |
| 2026-01-24 00:00 | 149844 | | |
| 2026-01-23 23:00 | 152025 | | |
| 2026-01-23 22:00 | 153662 | | |
| 2026-01-23 21:00 | 154719 | | |
| 2026-01-23 20:00 | 155750 | | |
| 2026-01-23 19:00 | 154956 | | |
| 2026-01-23 18:00 | 149525 | | |
| 2026-01-23 17:00 | 138331 | | |
| 2026-01-23 16:00 | 123812 | | |
| 2026-01-23 15:00 | 113237 | | |
| 2026-01-23 14:00 | 112369 | | |
| 2026-01-23 13:00 | 119287 | | |
| 2026-01-23 12:00 | 128756 | | |
| 2026-01-23 11:00 | 137744 | | |
| 2026-01-23 10:00 | 144725 | | |
| 2026-01-23 09:00 | 148519 | | |
| 2026-01-23 08:00 | 148731 | | |
| 2026-01-23 07:00 | 144506 | | |
| 2026-01-23 06:00 | 135562 | | |
| 2026-01-23 05:00 | 124881 | | |
| 2026-01-23 04:00 | 116844 | | |
| 2026-01-23 03:00 | 113362 | | |
| 2026-01-23 02:00 | 111763 | | |
| 2026-01-23 01:00 | 108281 | | |
| 2026-01-23 00:00 | 104875 | | |
| 2026-01-22 23:00 | 106194 | | |
| 2026-01-22 22:00 | 112544 | | |
| 2026-01-22 21:00 | 122463 | | |
| 2026-01-22 20:00 | 134856 | | |
| 2026-01-22 19:00 | 145244 | | |
| 2026-01-22 18:00 | 146944 | | |
| 2026-01-22 17:00 | 139119 | | |
| 2026-01-22 16:00 | 129887 | | |
| 2026-01-22 15:00 | 127369 | | |
| 2026-01-22 14:00 | 131525 | | |
| 2026-01-22 13:00 | 137531 | | |
| 2026-01-22 12:00 | 142144 | | |
| 2026-01-22 11:00 | 145919 | | |
| 2026-01-22 10:00 | 150713 | | |
| 2026-01-22 09:00 | 155088 | | |
| 2026-01-22 08:00 | 155688 | | |
| 2026-01-22 07:00 | 153494 | | |
| 2026-01-22 06:00 | 149944 | | |
| 2026-01-22 05:00 | 139238 | | |
| 2026-01-22 04:00 | 120750 | | |
| 2026-01-22 03:00 | 106869 | | |
| 2026-01-22 02:00 | 105169 | | |
| 2026-01-22 01:00 | 113344 | | |
| 2026-01-22 00:00 | 128281 | | |
| 2026-01-21 23:00 | 143775 | | |
| 2026-01-21 22:00 | 153363 | | |
| 2026-01-21 21:00 | 158206 | | |
| 2026-01-21 20:00 | 160550 | | |
| 2026-01-21 19:00 | 158256 | | |
| 2026-01-21 18:00 | 149012 | | |
| 2026-01-21 17:00 | 133350 | | |
| 2026-01-21 16:00 | 119106 | | |
| 2026-01-21 15:00 | 115750 | | |
| 2026-01-21 14:00 | 121513 | | |
| 2026-01-21 13:00 | 128506 | | |
| 2026-01-21 12:00 | 132875 | | |
| 2026-01-21 11:00 | 136544 | | |
| 2026-01-21 10:00 | 143194 | | |
| 2026-01-21 09:00 | 149613 | | |
| 2026-01-21 08:00 | 149756 | | |
| 2026-01-21 07:00 | 145556 | | |
| 2026-01-21 06:00 | 142012 | | |
| 2026-01-21 05:00 | 139394 | | |
| 2026-01-21 04:00 | 136188 | | |
| 2026-01-21 03:00 | 133887 | | |
| 2026-01-21 02:00 | 136056 | | |
| 2026-01-21 01:00 | 142650 | | |
| 2026-01-21 00:00 | 148994 | | |
| 2026-01-20 23:00 | 151019 | | |
| 2026-01-20 22:00 | 149644 | | |
| 2026-01-20 21:00 | 149831 | | |
| 2026-01-20 20:00 | 153537 | | |
| 2026-01-20 19:00 | 157613 | | |
| 2026-01-20 18:00 | 156531 | | |
| 2026-01-20 17:00 | 144688 | | |
| 2026-01-20 16:00 | 127062 | | |
| 2026-01-20 15:00 | 117994 | | |
| 2026-01-20 14:00 | 121662 | | |
| 2026-01-20 13:00 | 131600 | | |
| 2026-01-20 12:00 | 142325 | | |
| 2026-01-20 11:00 | 149919 | | |
| 2026-01-20 10:00 | 152594 | | |
| 2026-01-20 09:00 | 152400 | | |
| 2026-01-20 08:00 | 151988 | | |
| 2026-01-20 07:00 | 150775 | | |
| 2026-01-20 06:00 | 145931 | | |
| 2026-01-20 05:00 | 137637 | | |
| 2026-01-20 04:00 | 129519 | | |
| 2026-01-20 03:00 | 124194 | | |
| 2026-01-20 02:00 | 122737 | | |
| 2026-01-20 01:00 | 125650 | | |
| 2026-01-20 00:00 | 131419 | | |
| 2026-01-19 23:00 | 136613 | | |
| 2026-01-19 22:00 | 139256 | | |
| 2026-01-19 21:00 | 140525 | | |
| 2026-01-19 20:00 | 143256 | | |
| 2026-01-19 19:00 | 147006 | | |
| 2026-01-19 18:00 | 144206 | | |
| 2026-01-19 17:00 | 131438 | | |
| 2026-01-19 16:00 | 118650 | | |
| 2026-01-19 15:00 | 115237 | | |
| 2026-01-19 14:00 | 119562 | | |
| 2026-01-19 13:00 | 126650 | | |
| 2026-01-19 12:00 | 133675 | | |
| 2026-01-19 11:00 | 139050 | | |
| 2026-01-19 10:00 | 143625 | | |
| 2026-01-19 09:00 | 149438 | | |
| 2026-01-19 08:00 | 155925 | | |
| 2026-01-19 07:00 | 161075 | | |
| 2026-01-19 06:00 | 163406 | | |
| 2026-01-19 05:00 | 162312 | | |
| 2026-01-19 04:00 | 159137 | | |
| 2026-01-19 03:00 | 156056 | | |
| 2026-01-19 02:00 | 153988 | | |
| 2026-01-19 01:00 | 152887 | | |
| 2026-01-19 00:00 | 153000 | | |
| 2026-01-18 23:00 | 154338 | | |
| 2026-01-18 22:00 | 155819 | | |
| 2026-01-18 21:00 | 156919 | | |
| 2026-01-18 20:00 | 158037 | | |
| 2026-01-18 19:00 | 157537 | | |
| 2026-01-18 18:00 | 152094 | | |
| 2026-01-18 17:00 | 143037 | | |
| 2026-01-18 16:00 | 137806 | | |
| 2026-01-18 15:00 | 140075 | | |
| 2026-01-18 14:00 | 144850 | | |
| 2026-01-18 13:00 | 146575 | | |
| 2026-01-18 12:00 | 144875 | | |
| 2026-01-18 11:00 | 143037 | | |
| 2026-01-18 10:00 | 143994 | | |
| 2026-01-18 09:00 | 146463 | | |
| 2026-01-18 08:00 | 147469 | | |
| 2026-01-18 07:00 | 146863 | | |
| 2026-01-18 06:00 | 145694 | | |
| 2026-01-18 05:00 | 144056 | | |
| 2026-01-18 04:00 | 141994 | | |
| 2026-01-18 03:00 | 140225 | | |
| 2026-01-18 02:00 | 140463 | | |
| 2026-01-18 01:00 | 144062 | | |
| 2026-01-18 00:00 | 148887 | | |
| 2026-01-17 23:00 | 151131 | | |
| 2026-01-17 22:00 | 150850 | | |
| 2026-01-17 21:00 | 150375 | | |
| 2026-01-17 20:00 | 150037 | | |
| 2026-01-17 19:00 | 149350 | | |
| 2026-01-17 18:00 | 144975 | | |
| 2026-01-17 17:00 | 131312 | | |
| 2026-01-17 16:00 | 113800 | | |
| 2026-01-17 15:00 | 106550 | | |
| 2026-01-17 14:00 | 111700 | | |
| 2026-01-17 13:00 | 120469 | | |
| 2026-01-17 12:00 | 127719 | | |
| 2026-01-17 11:00 | 133387 | | |
| 2026-01-17 10:00 | 138400 | | |
| 2026-01-17 09:00 | 142338 | | |
| 2026-01-17 08:00 | 144463 | | |
| 2026-01-17 07:00 | 145769 | | |
| 2026-01-17 06:00 | 147312 | | |
| 2026-01-17 05:00 | 148762 | | |
| 2026-01-17 04:00 | 150219 | | |
| 2026-01-17 03:00 | 153056 | | |
| 2026-01-17 02:00 | 156400 | | |
| 2026-01-17 01:00 | 158219 | | |
| 2026-01-17 00:00 | 158919 | | |
| 2026-01-16 23:00 | 158206 | | |
| 2026-01-16 22:00 | 156644 | | |
| 2026-01-16 21:00 | 157588 | | |
| 2026-01-16 20:00 | 160756 | | |
| 2026-01-16 19:00 | 161575 | | |
| 2026-01-16 18:00 | 155931 | | |
| 2026-01-16 17:00 | 141812 | | |
| 2026-01-16 16:00 | 122987 | | |
| 2026-01-16 15:00 | 111044 | | |
| 2026-01-16 14:00 | 113681 | | |
| 2026-01-16 13:00 | 124750 | | |
| 2026-01-16 12:00 | 134400 | | |
| 2026-01-16 11:00 | 140294 | | |
| 2026-01-16 10:00 | 145194 | | |
| 2026-01-16 09:00 | 149838 | | |
| 2026-01-16 08:00 | 152281 | | |
| 2026-01-16 07:00 | 153519 | | |
| 2026-01-16 06:00 | 155338 | | |
| 2026-01-16 05:00 | 155906 | | |
| 2026-01-16 04:00 | 154562 | | |
| 2026-01-16 03:00 | 153531 | | |
| 2026-01-16 02:00 | 153144 | | |
| 2026-01-16 01:00 | 151775 | | |
| 2026-01-16 00:00 | 149812 | | |
| 2026-01-15 23:00 | 149319 | | |
| 2026-01-15 22:00 | 151387 | | |
| 2026-01-15 21:00 | 155294 | | |
| 2026-01-15 20:00 | 158594 | | |
| 2026-01-15 19:00 | 158219 | | |
| 2026-01-15 18:00 | 151031 | | |
| 2026-01-15 17:00 | 137544 | | |
| 2026-01-15 16:00 | 124688 | | |
| 2026-01-15 15:00 | 119088 | | |
| 2026-01-15 14:00 | 122263 | | |
| 2026-01-15 13:00 | 131119 | | |
| 2026-01-15 12:00 | 138463 | | |
| 2026-01-15 11:00 | 140613 | | |
| 2026-01-15 10:00 | 142488 | | |
| 2026-01-15 09:00 | 147113 | | |
| 2026-01-15 08:00 | 149812 | | |
| 2026-01-15 07:00 | 147144 | | |
| 2026-01-15 06:00 | 140887 | | |
| 2026-01-15 05:00 | 134725 | | |
| 2026-01-15 04:00 | 131356 | | |
| 2026-01-15 03:00 | 131031 | | |
| 2026-01-15 02:00 | 134175 | | |
| 2026-01-15 01:00 | 141125 | | |
| 2026-01-15 00:00 | 148512 | | |
| 2026-01-14 23:00 | 152688 | | |
| 2026-01-14 22:00 | 154269 | | |
| 2026-01-14 21:00 | 155769 | | |
| 2026-01-14 20:00 | 157012 | | |
| 2026-01-14 19:00 | 155613 | | |
| 2026-01-14 18:00 | 150025 | | |
| 2026-01-14 17:00 | 138381 | | |
| 2026-01-14 16:00 | 122756 | | |