Gage | Train correlation | Test correlation | Test RMSE (1000 ac-ft) | Efficiency | Lead time (year) | Combination of indices |
Weber River near Oakley | 0.49 | 0.72 | 33.95 | 0.02 | 4 | PDO + ENSO |
Chalk Creek at Coalville | 0.57 | 0.61 | 19.01 | - | 4 | PDO + ENSO |
Sevier River at Hatch | 0.62 | 0.87 | 41.68 | 0.60 | 2 | PDO + NAO |
Muddy Creek near Emery | 0.90 | 0.82 | 7.13 | 0.61 | 2 | PDO + NAO |