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| NF FLATHEAD--NEAR COLUMBIA FALLS (FCFM8) |
County: FLATHEAD     State: MT |
| Elevation: 3145 (feet)      Latitude: 48 29' 44"    Longitude: 114 7' 36" |
| Flood Stage: 13.00 (feet)      Bankfull Stage: 12.50 (feet) |
|   | Error (feet) -- Lead Time in Hours | |||||||||||
| Forecast Time (GMT) | 6 | 12 | 18 | 24 | 30 | 36 | 42 | 48 | 54 | 60 | 66 | 72 |
| 2021-09-06 15:11:00 | -0.002 | 0.006 | 0.013 | 0.019 | 0.015 | 0.012 | 0.02 | 0.018 | 0.014 | 0.022 | 0.021 | 0.02 |
| 2021-09-07 16:25:00 | -0.004 | -0.006 | 0.002 | 0.0 | -0.003 | 0.005 | 0.005 | 0.004 | 0.01 | 0.005 | 0.011 | 0.009 |
| 2021-09-07 20:56:00 | -0.002 | 0.006 | 0.004 | 0.0 | 0.009 | 0.008 | 0.007 | 0.013 | 0.007 | 0.014 | 0.011 | 0.02 |
| 2021-09-07 21:28:00 | -0.002 | 0.006 | 0.004 | 0.0 | 0.009 | 0.008 | 0.007 | 0.013 | 0.007 | 0.014 | 0.011 | 0.02 |
| 2021-09-08 15:08:00 | -0.003 | 0.005 | 0.004 | 0.003 | 0.01 | 0.004 | 0.01 | 0.008 | 0.016 | 0.016 | 0.006 | -0.063 |
| 2021-09-08 21:06:00 | 0.008 | 0.007 | 0.006 | 0.012 | 0.007 | 0.013 | 0.01 | 0.019 | 0.018 | 0.009 | -0.061 | -0.051 |
| 2021-09-09 16:29:00 | 0.007 | 0.001 | 0.007 | 0.004 | 0.013 | 0.013 | 0.003 | -0.066 | -0.056 | -0.087 | -0.119 | -0.18 |
| 2021-09-09 21:09:00 | -0.006 | 0.001 | -0.002 | 0.007 | 0.007 | -0.003 | -0.072 | -0.062 | -0.092 | -0.124 | -0.185 | -0.236 |
| 2021-09-10 14:56:00 | 0.009 | 0.008 | -0.001 | -0.071 | -0.06 | -0.091 | -0.123 | -0.185 | -0.235 | -0.235 | -0.235 | - - |
| 2021-09-10 21:07:00 | 0.0 | -0.01 | -0.079 | -0.068 | -0.099 | -0.131 | -0.192 | -0.242 | -0.242 | -0.242 | - - | - - |
| 2021-09-11 15:09:00 | -0.045 | -0.101 | -0.133 | -0.194 | -0.245 | -0.245 | -0.245 | - - | - - | - - | - - | - - |
| 2021-09-12 15:35:00 | -0.022 | -0.025 | -0.055 | - - | - - | - - | - - | - - | - - | - - | - - | - - |
| Percent Bias | -0.29 | -0.47 | -1.06 | -1.45 | -1.70 | -2.05 | -2.84 | -2.64 | -3.03 | -3.32 | -3.28 | -3.15 |
| Mean Absolute Error (feet) | 0.01 | 0.02 | 0.03 | 0.03 | 0.04 | 0.05 | 0.06 | 0.06 | 0.07 | 0.08 | 0.07 | 0.07 |
| RMSE (feet) | 0.02 | 0.03 | 0.05 | 0.07 | 0.08 | 0.09 | 0.10 | 0.10 | 0.11 | 0.12 | 0.11 | 0.11 |