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| COLUMBIA--CHIEF JOSEPH DAM (CHJW1) |
County: DOUGLAS State: WA |
| Elevation: 820 (feet) Latitude: 47 59' 34" Longitude: 119 39' 12" |
| Error (feet) -- Lead Time in Hours | ||||||||||||
| Forecast Time (GMT) | 6 | 12 | 18 | 24 | 30 | 36 | 42 | 48 | 54 | 60 | 66 | 72 |
| 2021-04-19 18:51:00 | -0.1 | 172.9 | 173.6 | 172.5 | 171.9 | 1.0 | 174.5 | -0.6 | 170.5 | 0.7 | 173.7 | 172.9 |
| 2021-04-19 22:38:00 | -0.1 | 172.9 | 173.6 | 172.5 | 171.9 | 1.0 | 174.5 | -0.6 | 170.5 | 0.7 | 173.7 | 172.9 |
| 2021-04-20 16:46:00 | 172.7 | 172.1 | 1.2 | 174.7 | -0.4 | 170.7 | 0.9 | 173.9 | 173.1 | 1.1 | 172.9 | 174.2 |
| 2021-04-21 00:13:00 | 1.4 | 174.9 | -0.2 | 170.9 | 1.1 | 174.1 | 173.3 | 1.3 | 173.1 | 174.4 | 171.5 | 1.4 |
| 2021-04-21 16:19:00 | -0.6 | 170.5 | 0.7 | 173.7 | 172.9 | 0.9 | 172.7 | 174.0 | 171.1 | 1.0 | 0.7 | 0.3 |
| 2021-04-21 17:14:00 | -0.6 | 170.5 | 0.7 | 173.7 | 172.9 | 0.9 | 172.7 | 174.0 | 171.1 | 1.0 | 0.7 | 0.3 |
| 2021-04-21 22:57:00 | 171.1 | 1.3 | 174.3 | 173.5 | 1.5 | 173.3 | 174.6 | 171.7 | 1.6 | 1.3 | 0.9 | 0.8 |
| 2021-04-22 17:41:00 | 171.9 | -0.1 | 171.7 | 173.0 | 170.1 | 0.0 | -0.3 | -0.7 | -0.8 | 172.3 | -0.4 | 173.0 |
| 2021-04-22 23:28:00 | 0.0999999999999 | 171.9 | 173.2 | 170.3 | 0.2 | -0.1 | -0.5 | -0.6 | 172.5 | -0.2 | 173.2 | -0.3 |
| 2021-04-23 16:08:00 | 169.8 | -0.3 | -0.6 | -1.0 | -1.1 | 172.0 | -0.7 | 172.7 | -0.8 | 173.4 | -1.8 | - - |
| 2021-04-23 22:59:00 | -0.3 | -0.6 | -1.0 | -1.1 | 172.0 | -0.7 | 172.7 | -0.8 | 173.4 | -1.8 | - - | - - |
| 2021-04-24 18:15:00 | 173.0 | 0.3 | 173.7 | 0.2 | 174.4 | -0.8 | - - | - - | - - | - - | - - | - - |
| 2021-04-24 23:24:00 | 173.1 | 0.4 | 173.8 | 0.3 | 174.5 | -0.7 | - - | - - | - - | - - | - - | - - |
| 2021-04-25 17:25:00 | -0.2 | 174.0 | -1.2 | - - | - - | - - | - - | - - | - - | - - | - - | - - |
| Percent Bias | 8.37 | 11.53 | 10.00 | 14.32 | 12.54 | 5.91 | 13.09 | 8.98 | 15.09 | 5.26 | 9.97 | 8.81 |
| Mean Absolute Error (feet) | 73.93 | 98.76 | 87.11 | 119.80 | 106.53 | 53.55 | 110.67 | 79.17 | 125.32 | 47.99 | 86.95 | 77.34 |
| RMSE (feet) | 112.56 | 130.37 | 122.63 | 143.75 | 135.38 | 95.70 | 138.46 | 116.82 | 146.61 | 90.54 | 122.33 | 115.50 |