| Forest fire risk | Danger level | Flammability | Spread degree | HTZ |
| 1 | None | None | None | ≤29 |
| 2 | Low | Hard | Hard | 30 - 49 |
| 3 | Moderate | Flammable | Spreadable | 50 - 69 |
| 4 | High | Easy | Easy | 70 - 89 |
| 5 | Extreme | Extreme | Extreme | ≥90 |