| No. | Predictor description | No. | Predictor description |
| 1 | p_f: Surface airflow strength | 14 | r500: 500 hPa relative humidity |
| 2 | p_u: Surface zonal velocity | 15 | p8_f: 850 hPa airflow strength |
| 3 | p_v: Surface meridional velocity | 16 | p8_u: 850 hPa zonal velocity |
| 4 | p_z: Surface vorticity | 17 | p8_v: 850 hPa meridional velocity |
| 5 | p_th: Surface wind direction | 18 | p8_z: 850 hPa vorticity |
| 6 | p_zh: Surface divergence | 19 | p8th: 850 hPa wind direction |
| 7 | rhum: Surface relative humidity | 20 | p8zh: 850 hPa divergence |
| 8 | p5_f: 500 hPa airflow strength | 21 | r850: 850 hPa relative humidity |
| 9 | p5_u: 500 hPa zonal velocity | 22 | p500: 500 hPa geopotential height |
| 10 | p5_v: 500 hPa meridional velocity | 23 | p850: 850 hPa geopotential height |
| 11 | p5_z: 500 hPa vorticity | 24 | Temp: Mean temperature at 2 m height |
| 12 | p5th: 500 hPa wind direction | 25 | shum: Surface-specific humidity |
| 13 | p5zh: 500 hPa divergence | 26 | mslp: Mean sea level pressure |