COLUMBIA--GRAND COULEE DAM (GCDW1)
| Observed |
| Date/Time (PDT) | Discharge |
| 2022-07-03 11:00 | 158081 | | |
| 2022-07-03 10:00 | 154481 | | |
| 2022-07-03 09:00 | 146175 | | |
| 2022-07-03 08:00 | 135869 | | |
| 2022-07-03 07:00 | 131206 | | |
| 2022-07-03 06:00 | 133750 | | |
| 2022-07-03 05:00 | 138169 | | |
| 2022-07-03 04:00 | 142394 | | |
| 2022-07-03 03:00 | 147919 | | |
| 2022-07-03 02:00 | 154603 | | |
| 2022-07-03 01:00 | 160319 | | |
| 2022-07-03 00:00 | 163238 | | |
| 2022-07-02 23:00 | 164387 | | |
| 2022-07-02 22:00 | 167984 | | |
| 2022-07-02 21:00 | 174881 | | |
| 2022-07-02 20:00 | 180650 | | |
| 2022-07-02 19:00 | 183900 | | |
| 2022-07-02 18:00 | 186819 | | |
| 2022-07-02 17:00 | 189675 | | |
| 2022-07-02 16:00 | 191238 | | |
| 2022-07-02 15:00 | 189963 | | |
| 2022-07-02 14:00 | 185275 | | |
| 2022-07-02 13:00 | 180081 | | |
| 2022-07-02 12:00 | 177650 | | |
| 2022-07-02 11:00 | 176069 | | |
| 2022-07-02 10:00 | 170469 | | |
| 2022-07-02 09:00 | 161519 | | |
| 2022-07-02 08:00 | 155438 | | |
| 2022-07-02 07:00 | 153200 | | |
| 2022-07-02 06:00 | 150363 | | |
| 2022-07-02 05:00 | 146556 | | |
| 2022-07-02 04:00 | 144637 | | |
| 2022-07-02 03:00 | 146150 | | |
| 2022-07-02 02:00 | 152162 | | |
| 2022-07-02 01:00 | 162825 | | |
| 2022-07-02 00:00 | 175169 | | |
| 2022-07-01 23:00 | 184225 | | |
| 2022-07-01 22:00 | 187969 | | |
| 2022-07-01 21:00 | 189637 | | |
| 2022-07-01 20:00 | 192919 | | |
| 2022-07-01 19:00 | 198050 | | |
| 2022-07-01 18:00 | 204312 | | |
| 2022-07-01 17:00 | 210950 | | |
| 2022-07-01 16:00 | 216500 | | |
| 2022-07-01 15:00 | 220588 | | |
| 2022-07-01 14:00 | 221294 | | |
| 2022-07-01 13:00 | 214281 | | |
| 2022-07-01 12:00 | 201938 | | |
| 2022-07-01 11:00 | 193119 | | |
| 2022-07-01 10:00 | 188688 | | |
| 2022-07-01 09:00 | 182300 | | |
| 2022-07-01 08:00 | 173863 | | |
| 2022-07-01 07:00 | 167475 | | |
| 2022-07-01 06:00 | 163550 | | |
| 2022-07-01 05:00 | 161206 | | |
| 2022-07-01 04:00 | 160925 | | |
| 2022-07-01 03:00 | 162769 | | |
| 2022-07-01 02:00 | 167125 | | |
| 2022-07-01 01:00 | 176100 | | |
| 2022-07-01 00:00 | 189769 | | |
| 2022-06-30 23:00 | 203669 | | |
| 2022-06-30 22:00 | 214244 | | |
| 2022-06-30 21:00 | 222306 | | |
| 2022-06-30 20:00 | 228650 | | |
| 2022-06-30 19:00 | 231300 | | |
| 2022-06-30 18:00 | 228456 | | |
| 2022-06-30 17:00 | 222319 | | |
| 2022-06-30 16:00 | 216412 | | |
| 2022-06-30 15:00 | 211537 | | |
| 2022-06-30 14:00 | 209100 | | |
| 2022-06-30 13:00 | 211412 | | |
| 2022-06-30 12:00 | 216938 | | |
| 2022-06-30 11:00 | 221406 | | |
| 2022-06-30 10:00 | 221869 | | |
| 2022-06-30 09:00 | 217562 | | |
| 2022-06-30 08:00 | 211194 | | |
| 2022-06-30 07:00 | 207662 | | |
| 2022-06-30 06:00 | 207312 | | |
| 2022-06-30 05:00 | 206725 | | |
| 2022-06-30 04:00 | 205537 | | |
| 2022-06-30 03:00 | 205425 | | |
| 2022-06-30 02:00 | 206412 | | |
| 2022-06-30 01:00 | 208463 | | |
| 2022-06-30 00:00 | 213069 | | |
| 2022-06-29 23:00 | 219531 | | |
| 2022-06-29 22:00 | 224575 | | |
| 2022-06-29 21:00 | 228062 | | |
| 2022-06-29 20:00 | 231262 | | |
| 2022-06-29 19:00 | 232137 | | |
| 2022-06-29 18:00 | 229425 | | |
| 2022-06-29 17:00 | 225675 | | |
| 2022-06-29 16:00 | 224238 | | |
| 2022-06-29 15:00 | 226456 | | |
| 2022-06-29 14:00 | 230131 | | |
| 2022-06-29 13:00 | 231869 | | |
| 2022-06-29 12:00 | 231287 | | |
| 2022-06-29 11:00 | 230200 | | |
| 2022-06-29 10:00 | 229375 | | |
| 2022-06-29 09:00 | 228531 | | |
| 2022-06-29 08:00 | 227894 | | |
| 2022-06-29 07:00 | 227387 | | |
| 2022-06-29 06:00 | 226325 | | |
| 2022-06-29 05:00 | 225088 | | |
| 2022-06-29 04:00 | 224481 | | |
| 2022-06-29 03:00 | 224506 | | |
| 2022-06-29 02:00 | 225081 | | |
| 2022-06-29 01:00 | 227044 | | |
| 2022-06-29 00:00 | 232300 | | |
| 2022-06-28 23:00 | 240250 | | |
| 2022-06-28 22:00 | 246281 | | |
| 2022-06-28 21:00 | 248056 | | |
| 2022-06-28 20:00 | 247812 | | |
| 2022-06-28 19:00 | 247619 | | |
| 2022-06-28 18:00 | 247713 | | |
| 2022-06-28 17:00 | 247925 | | |
| 2022-06-28 16:00 | 248144 | | |
| 2022-06-28 15:00 | 248494 | | |
| 2022-06-28 14:00 | 249544 | | |
| 2022-06-28 13:00 | 251056 | | |
| 2022-06-28 12:00 | 251519 | | |
| 2022-06-28 11:00 | 250488 | | |
| 2022-06-28 10:00 | 249600 | | |
| 2022-06-28 09:00 | 250175 | | |
| 2022-06-28 08:00 | 251506 | | |
| 2022-06-28 07:00 | 252500 | | |
| 2022-06-28 06:00 | 253044 | | |
| 2022-06-28 05:00 | 253244 | | |
| 2022-06-28 04:00 | 253262 | | |
| 2022-06-28 03:00 | 253400 | | |
| 2022-06-28 02:00 | 253819 | | |
| 2022-06-28 01:00 | 255094 | | |
| 2022-06-28 00:00 | 257794 | | |
| 2022-06-27 23:00 | 260575 | | |
| 2022-06-27 22:00 | 261494 | | |
| 2022-06-27 21:00 | 261538 | | |
| 2022-06-27 20:00 | 262387 | | |
| 2022-06-27 19:00 | 262587 | | |
| 2022-06-27 18:00 | 260663 | | |
| 2022-06-27 17:00 | 258025 | | |
| 2022-06-27 16:00 | 256087 | | |
| 2022-06-27 15:00 | 255213 | | |
| 2022-06-27 14:00 | 256444 | | |
| 2022-06-27 13:00 | 259825 | | |
| 2022-06-27 12:00 | 263550 | | |
| 2022-06-27 11:00 | 266488 | | |
| 2022-06-27 10:00 | 268056 | | |
| 2022-06-27 09:00 | 267637 | | |
| 2022-06-27 08:00 | 266200 | | |
| 2022-06-27 07:00 | 265444 | | |
| 2022-06-27 06:00 | 265494 | | |
| 2022-06-27 05:00 | 265669 | | |
| 2022-06-27 04:00 | 265944 | | |
| 2022-06-27 03:00 | 266625 | | |
| 2022-06-27 02:00 | 267469 | | |
| 2022-06-27 01:00 | 267575 | | |
| 2022-06-27 00:00 | 267150 | | |
| 2022-06-26 23:00 | 267538 | | |
| 2022-06-26 22:00 | 268275 | | |
| 2022-06-26 21:00 | 267756 | | |
| 2022-06-26 20:00 | 266394 | | |
| 2022-06-26 19:00 | 265038 | | |
| 2022-06-26 18:00 | 262869 | | |
| 2022-06-26 17:00 | 260062 | | |
| 2022-06-26 16:00 | 258531 | | |
| 2022-06-26 15:00 | 258788 | | |
| 2022-06-26 14:00 | 259681 | | |
| 2022-06-26 13:00 | 260656 | | |
| 2022-06-26 12:00 | 261506 | | |
| 2022-06-26 11:00 | 261438 | | |
| 2022-06-26 10:00 | 260394 | | |
| 2022-06-26 09:00 | 259262 | | |
| 2022-06-26 08:00 | 258312 | | |
| 2022-06-26 07:00 | 257450 | | |
| 2022-06-26 06:00 | 257269 | | |
| 2022-06-26 05:00 | 258038 | | |
| 2022-06-26 04:00 | 258900 | | |
| 2022-06-26 03:00 | 259319 | | |
| 2022-06-26 02:00 | 259550 | | |
| 2022-06-26 01:00 | 259625 | | |
| 2022-06-26 00:00 | 259519 | | |
| 2022-06-25 23:00 | 259712 | | |
| 2022-06-25 22:00 | 260444 | | |
| 2022-06-25 21:00 | 261125 | | |
| 2022-06-25 20:00 | 261325 | | |
| 2022-06-25 19:00 | 261619 | | |
| 2022-06-25 18:00 | 262400 | | |
| 2022-06-25 17:00 | 262794 | | |
| 2022-06-25 16:00 | 262250 | | |
| 2022-06-25 15:00 | 261512 | | |
| 2022-06-25 14:00 | 261619 | | |
| 2022-06-25 13:00 | 263031 | | |
| 2022-06-25 12:00 | 264538 | | |
| 2022-06-25 11:00 | 264331 | | |
| 2022-06-25 10:00 | 262669 | | |
| 2022-06-25 09:00 | 260988 | | |
| 2022-06-25 08:00 | 259938 | | |
| 2022-06-25 07:00 | 259750 | | |
| 2022-06-25 06:00 | 259663 | | |
| 2022-06-25 05:00 | 257938 | | |
| 2022-06-25 04:00 | 255381 | | |
| 2022-06-25 03:00 | 254650 | | |
| 2022-06-25 02:00 | 255719 | | |
| 2022-06-25 01:00 | 257100 | | |
| 2022-06-25 00:00 | 258288 | | |
| 2022-06-24 23:00 | 258481 | | |
| 2022-06-24 22:00 | 257606 | | |
| 2022-06-24 21:00 | 257444 | | |
| 2022-06-24 20:00 | 258225 | | |
| 2022-06-24 19:00 | 258100 | | |
| 2022-06-24 18:00 | 256725 | | |
| 2022-06-24 17:00 | 255488 | | |
| 2022-06-24 16:00 | 255231 | | |
| 2022-06-24 15:00 | 255312 | | |
| 2022-06-24 14:00 | 254644 | | |
| 2022-06-24 13:00 | 253375 | | |
| 2022-06-24 12:00 | 252562 | | |
| 2022-06-24 11:00 | 252469 | | |
| 2022-06-24 10:00 | 252169 | | |
| 2022-06-24 09:00 | 251169 | | |
| 2022-06-24 08:00 | 250512 | | |
| 2022-06-24 07:00 | 250975 | | |
| 2022-06-24 06:00 | 251819 | | |
| 2022-06-24 05:00 | 252206 | | |
| 2022-06-24 04:00 | 251938 | | |
| 2022-06-24 03:00 | 250775 | | |
| 2022-06-24 02:00 | 248631 | | |
| 2022-06-24 01:00 | 247300 | | |
| 2022-06-24 00:00 | 248581 | | |
| 2022-06-23 23:00 | 250644 | | |
| 2022-06-23 22:00 | 251506 | | |
| 2022-06-23 21:00 | 252106 | | |
| 2022-06-23 20:00 | 253356 | | |
| 2022-06-23 19:00 | 254281 | | |
| 2022-06-23 18:00 | 253281 | | |
| 2022-06-23 17:00 | 250994 | | |
| 2022-06-23 16:00 | 249925 | | |
| 2022-06-23 15:00 | 250581 | | |
| 2022-06-23 14:00 | 250394 | | |
| 2022-06-23 13:00 | 247562 | | |
| 2022-06-23 12:00 | 244200 | | |
| 2022-06-23 11:00 | 242700 | | |
| 2022-06-23 10:00 | 242637 | | |
| 2022-06-23 09:00 | 242838 | | |
| 2022-06-23 08:00 | 242412 | | |
| 2022-06-23 07:00 | 241256 | | |
| 2022-06-23 06:00 | 239631 | | |
| 2022-06-23 05:00 | 237031 | | |
| 2022-06-23 04:00 | 234219 | | |
| 2022-06-23 03:00 | 233156 | | |
| 2022-06-23 02:00 | 234562 | | |
| 2022-06-23 01:00 | 237669 | | |
| 2022-06-23 00:00 | 240369 | | |
| 2022-06-22 23:00 | 241012 | | |
| 2022-06-22 22:00 | 240556 | | |
| 2022-06-22 21:00 | 240838 | | |
| 2022-06-22 20:00 | 241875 | | |
| 2022-06-22 19:00 | 242631 | | |
| 2022-06-22 18:00 | 243194 | | |
| 2022-06-22 17:00 | 244325 | | |