COLUMBIA--GRAND COULEE DAM (GCDW1)
| Observed |
| Date/Time (PST) | Discharge |
| 2026-02-05 20:00 | 130262 | | |
| 2026-02-05 19:00 | 130000 | | |
| 2026-02-05 18:00 | 123950 | | |
| 2026-02-05 17:00 | 115775 | | |
| 2026-02-05 16:00 | 106737 | | |
| 2026-02-05 15:00 | 98037 | | |
| 2026-02-05 14:00 | 91938 | | |
| 2026-02-05 13:00 | 90100 | | |
| 2026-02-05 12:00 | 93963 | | |
| 2026-02-05 11:00 | 104350 | | |
| 2026-02-05 10:00 | 119975 | | |
| 2026-02-05 09:00 | 134775 | | |
| 2026-02-05 08:00 | 139988 | | |
| 2026-02-05 07:00 | 133725 | | |
| 2026-02-05 06:00 | 121675 | | |
| 2026-02-05 05:00 | 109425 | | |
| 2026-02-05 04:00 | 101719 | | |
| 2026-02-05 03:00 | 101006 | | |
| 2026-02-05 02:00 | 104750 | | |
| 2026-02-05 01:00 | 109450 | | |
| 2026-02-05 00:00 | 112694 | | |
| 2026-02-04 23:00 | 112731 | | |
| 2026-02-04 22:00 | 112425 | | |
| 2026-02-04 21:00 | 116406 | | |
| 2026-02-04 20:00 | 121263 | | |
| 2026-02-04 19:00 | 118881 | | |
| 2026-02-04 18:00 | 107000 | | |
| 2026-02-04 17:00 | 90131 | | |
| 2026-02-04 16:00 | 75987 | | |
| 2026-02-04 15:00 | 70588 | | |
| 2026-02-04 14:00 | 72619 | | |
| 2026-02-04 13:00 | 76950 | | |
| 2026-02-04 12:00 | 82269 | | |
| 2026-02-04 11:00 | 90088 | | |
| 2026-02-04 10:00 | 101213 | | |
| 2026-02-04 09:00 | 114100 | | |
| 2026-02-04 08:00 | 122838 | | |
| 2026-02-04 07:00 | 123606 | | |
| 2026-02-04 06:00 | 120888 | | |
| 2026-02-04 05:00 | 118694 | | |
| 2026-02-04 04:00 | 116213 | | |
| 2026-02-04 03:00 | 114044 | | |
| 2026-02-04 02:00 | 114294 | | |
| 2026-02-04 01:00 | 118688 | | |
| 2026-02-04 00:00 | 126169 | | |
| 2026-02-03 23:00 | 129475 | | |
| 2026-02-03 22:00 | 125306 | | |
| 2026-02-03 21:00 | 121388 | | |
| 2026-02-03 20:00 | 122037 | | |
| 2026-02-03 19:00 | 122050 | | |
| 2026-02-03 18:00 | 117331 | | |
| 2026-02-03 17:00 | 108487 | | |
| 2026-02-03 16:00 | 99031 | | |
| 2026-02-03 15:00 | 94506 | | |
| 2026-02-03 14:00 | 97481 | | |
| 2026-02-03 13:00 | 104119 | | |
| 2026-02-03 12:00 | 108713 | | |
| 2026-02-03 11:00 | 110125 | | |
| 2026-02-03 10:00 | 112100 | | |
| 2026-02-03 09:00 | 117406 | | |
| 2026-02-03 08:00 | 124931 | | |
| 2026-02-03 07:00 | 133831 | | |
| 2026-02-03 06:00 | 141844 | | |
| 2026-02-03 05:00 | 142344 | | |
| 2026-02-03 04:00 | 135656 | | |
| 2026-02-03 03:00 | 130525 | | |
| 2026-02-03 02:00 | 129244 | | |
| 2026-02-03 01:00 | 128206 | | |
| 2026-02-03 00:00 | 127900 | | |
| 2026-02-02 23:00 | 131119 | | |
| 2026-02-02 22:00 | 138262 | | |
| 2026-02-02 21:00 | 147650 | | |
| 2026-02-02 20:00 | 155406 | | |
| 2026-02-02 19:00 | 157481 | | |
| 2026-02-02 18:00 | 152031 | | |
| 2026-02-02 17:00 | 137412 | | |
| 2026-02-02 16:00 | 118194 | | |
| 2026-02-02 15:00 | 107781 | | |
| 2026-02-02 14:00 | 111131 | | |
| 2026-02-02 13:00 | 119775 | | |
| 2026-02-02 12:00 | 127025 | | |
| 2026-02-02 11:00 | 131750 | | |
| 2026-02-02 10:00 | 135113 | | |
| 2026-02-02 09:00 | 138606 | | |
| 2026-02-02 08:00 | 137644 | | |
| 2026-02-02 07:00 | 127675 | | |
| 2026-02-02 06:00 | 114031 | | |
| 2026-02-02 05:00 | 102900 | | |
| 2026-02-02 04:00 | 95350 | | |
| 2026-02-02 03:00 | 91862 | | |
| 2026-02-02 02:00 | 92331 | | |
| 2026-02-02 01:00 | 95856 | | |
| 2026-02-02 00:00 | 101519 | | |
| 2026-02-01 23:00 | 108513 | | |
| 2026-02-01 22:00 | 116625 | | |
| 2026-02-01 21:00 | 125081 | | |
| 2026-02-01 20:00 | 132056 | | |
| 2026-02-01 19:00 | 134694 | | |
| 2026-02-01 18:00 | 128181 | | |
| 2026-02-01 17:00 | 110731 | | |
| 2026-02-01 16:00 | 91150 | | |
| 2026-02-01 15:00 | 80588 | | |
| 2026-02-01 14:00 | 79513 | | |
| 2026-02-01 13:00 | 82319 | | |
| 2026-02-01 12:00 | 85825 | | |
| 2026-02-01 11:00 | 89681 | | |
| 2026-02-01 10:00 | 95525 | | |
| 2026-02-01 09:00 | 104388 | | |
| 2026-02-01 08:00 | 112550 | | |
| 2026-02-01 07:00 | 115638 | | |
| 2026-02-01 06:00 | 114794 | | |
| 2026-02-01 05:00 | 112306 | | |
| 2026-02-01 04:00 | 108569 | | |
| 2026-02-01 03:00 | 105856 | | |
| 2026-02-01 02:00 | 107400 | | |
| 2026-02-01 01:00 | 112881 | | |
| 2026-02-01 00:00 | 119150 | | |
| 2026-01-31 23:00 | 125100 | | |
| 2026-01-31 22:00 | 132375 | | |
| 2026-01-31 21:00 | 141062 | | |
| 2026-01-31 20:00 | 148287 | | |
| 2026-01-31 19:00 | 150331 | | |
| 2026-01-31 18:00 | 141975 | | |
| 2026-01-31 17:00 | 120581 | | |
| 2026-01-31 16:00 | 95162 | | |
| 2026-01-31 15:00 | 79175 | | |
| 2026-01-31 14:00 | 75219 | | |
| 2026-01-31 13:00 | 77062 | | |
| 2026-01-31 12:00 | 80381 | | |
| 2026-01-31 11:00 | 85219 | | |
| 2026-01-31 10:00 | 92919 | | |
| 2026-01-31 09:00 | 102725 | | |
| 2026-01-31 08:00 | 109987 | | |
| 2026-01-31 07:00 | 111650 | | |
| 2026-01-31 06:00 | 110831 | | |
| 2026-01-31 05:00 | 111444 | | |
| 2026-01-31 04:00 | 113575 | | |
| 2026-01-31 03:00 | 114900 | | |
| 2026-01-31 02:00 | 114581 | | |
| 2026-01-31 01:00 | 114431 | | |
| 2026-01-31 00:00 | 116544 | | |
| 2026-01-30 23:00 | 122575 | | |
| 2026-01-30 22:00 | 132075 | | |
| 2026-01-30 21:00 | 141706 | | |
| 2026-01-30 20:00 | 148662 | | |
| 2026-01-30 19:00 | 151938 | | |
| 2026-01-30 18:00 | 148213 | | |
| 2026-01-30 17:00 | 132606 | | |
| 2026-01-30 16:00 | 111544 | | |
| 2026-01-30 15:00 | 99750 | | |
| 2026-01-30 14:00 | 99200 | | |
| 2026-01-30 13:00 | 102050 | | |
| 2026-01-30 12:00 | 105894 | | |
| 2026-01-30 11:00 | 112900 | | |
| 2026-01-30 10:00 | 124794 | | |
| 2026-01-30 09:00 | 139381 | | |
| 2026-01-30 08:00 | 150406 | | |
| 2026-01-30 07:00 | 152781 | | |
| 2026-01-30 06:00 | 145769 | | |
| 2026-01-30 05:00 | 134887 | | |
| 2026-01-30 04:00 | 127775 | | |
| 2026-01-30 03:00 | 125669 | | |
| 2026-01-30 02:00 | 126100 | | |
| 2026-01-30 01:00 | 128225 | | |
| 2026-01-30 00:00 | 132287 | | |
| 2026-01-29 23:00 | 138856 | | |
| 2026-01-29 22:00 | 146238 | | |
| 2026-01-29 21:00 | 151244 | | |
| 2026-01-29 20:00 | 153956 | | |
| 2026-01-29 19:00 | 155869 | | |
| 2026-01-29 18:00 | 154037 | | |
| 2026-01-29 17:00 | 142738 | | |
| 2026-01-29 16:00 | 124606 | | |
| 2026-01-29 15:00 | 110875 | | |
| 2026-01-29 14:00 | 105763 | | |
| 2026-01-29 13:00 | 105162 | | |
| 2026-01-29 12:00 | 106981 | | |
| 2026-01-29 11:00 | 112763 | | |
| 2026-01-29 10:00 | 124487 | | |
| 2026-01-29 09:00 | 138338 | | |
| 2026-01-29 08:00 | 145794 | | |
| 2026-01-29 07:00 | 143812 | | |
| 2026-01-29 06:00 | 135238 | | |
| 2026-01-29 05:00 | 124706 | | |
| 2026-01-29 04:00 | 117312 | | |
| 2026-01-29 03:00 | 115013 | | |
| 2026-01-29 02:00 | 116763 | | |
| 2026-01-29 01:00 | 120881 | | |
| 2026-01-29 00:00 | 125438 | | |
| 2026-01-28 23:00 | 128950 | | |
| 2026-01-28 22:00 | 130894 | | |
| 2026-01-28 21:00 | 133169 | | |
| 2026-01-28 20:00 | 138713 | | |
| 2026-01-28 19:00 | 145762 | | |
| 2026-01-28 18:00 | 146669 | | |
| 2026-01-28 17:00 | 135019 | | |
| 2026-01-28 16:00 | 115769 | | |
| 2026-01-28 15:00 | 102175 | | |
| 2026-01-28 14:00 | 99075 | | |
| 2026-01-28 13:00 | 100231 | | |
| 2026-01-28 12:00 | 100794 | | |
| 2026-01-28 11:00 | 102694 | | |
| 2026-01-28 10:00 | 110537 | | |
| 2026-01-28 09:00 | 124475 | | |
| 2026-01-28 08:00 | 136613 | | |
| 2026-01-28 07:00 | 138144 | | |
| 2026-01-28 06:00 | 128950 | | |
| 2026-01-28 05:00 | 117138 | | |
| 2026-01-28 04:00 | 110981 | | |
| 2026-01-28 03:00 | 111275 | | |
| 2026-01-28 02:00 | 112769 | | |
| 2026-01-28 01:00 | 112744 | | |
| 2026-01-28 00:00 | 114000 | | |
| 2026-01-27 23:00 | 119456 | | |
| 2026-01-27 22:00 | 128794 | | |
| 2026-01-27 21:00 | 140975 | | |
| 2026-01-27 20:00 | 153075 | | |
| 2026-01-27 19:00 | 159431 | | |
| 2026-01-27 18:00 | 155512 | | |
| 2026-01-27 17:00 | 140494 | | |
| 2026-01-27 16:00 | 121800 | | |
| 2026-01-27 15:00 | 112381 | | |
| 2026-01-27 14:00 | 116162 | | |
| 2026-01-27 13:00 | 124525 | | |
| 2026-01-27 12:00 | 129119 | | |
| 2026-01-27 11:00 | 130762 | | |
| 2026-01-27 10:00 | 134456 | | |
| 2026-01-27 09:00 | 141106 | | |
| 2026-01-27 08:00 | 146719 | | |
| 2026-01-27 07:00 | 146356 | | |
| 2026-01-27 06:00 | 138419 | | |
| 2026-01-27 05:00 | 127963 | | |
| 2026-01-27 04:00 | 121950 | | |
| 2026-01-27 03:00 | 120375 | | |
| 2026-01-27 02:00 | 120725 | | |
| 2026-01-27 01:00 | 125612 | | |
| 2026-01-27 00:00 | 136062 | | |
| 2026-01-26 23:00 | 146425 | | |
| 2026-01-26 22:00 | 152306 | | |
| 2026-01-26 21:00 | 155394 | | |
| 2026-01-26 20:00 | 157963 | | |
| 2026-01-26 19:00 | 159119 | | |
| 2026-01-26 18:00 | 155963 | | |
| 2026-01-26 17:00 | 146325 | | |
| 2026-01-26 16:00 | 134488 | | |
| 2026-01-26 15:00 | 129188 | | |
| 2026-01-26 14:00 | 132269 | | |
| 2026-01-26 13:00 | 138719 | | |
| 2026-01-26 12:00 | 144306 | | |
| 2026-01-26 11:00 | 146081 | | |
| 2026-01-26 10:00 | 145088 | | |
| 2026-01-26 09:00 | 146700 | | |
| 2026-01-26 08:00 | 150281 | | |
| 2026-01-26 07:00 | 148125 | | |
| 2026-01-26 06:00 | 136938 | | |
| 2026-01-26 05:00 | 122188 | | |
| 2026-01-26 04:00 | 110956 | | |
| 2026-01-26 03:00 | 105044 | | |
| 2026-01-26 02:00 | 103569 | | |
| 2026-01-26 01:00 | 107244 | | |
| 2026-01-26 00:00 | 116525 | | |
| 2026-01-25 23:00 | 129019 | | |
| 2026-01-25 22:00 | 139806 | | |
| 2026-01-25 21:00 | 145325 | | |
| 2026-01-25 20:00 | 146394 | | |
| 2026-01-25 19:00 | 143781 | | |
| 2026-01-25 18:00 | 134037 | | |
| 2026-01-25 17:00 | 116600 | | |
| 2026-01-25 16:00 | 100994 | | |