| RH (850 hpa) | Level 4 | Level 3 | Level 2 | Level 1 | Score (Lev4) | Score (Lev 3) | Score (Lev 2) | Score (Lev 1) | Score |
| -30 | 7% | 19% | 27% | 35% | 0 | 7 | 27 | 174 | 208 |
| 30 - 40 | 12% | 25% | 29% | 33% | 0 | 10 | 29 | 167 | 206 |
| 40 - 50 | 14% | 15% | 13% | 10% | 0 | 6 | 13 | 48 | 67 |
| 50 - 60 | 23% | 12% | 9% | 3% | 0 | 5 | 9 | 15 | 29 |
| 60 - 70 | 25% | 10% | 8% | 11% | 0 | 4 | 8 | 56 | 68 |
| 70 - 80 | 10% | 6% | 6% | 6% | 0 | 2 | 6 | 30 | 38 |
| 80 - 90 | 4% | 5% | 2% | 1% | 0 | 2 | 2 | 7 | 11 |
| 90- | 7% | 8% | 5% | 1% | 0 | 3 | 5 | 4 | 12 |