The Australian national fire rating system is the framework used across Australia to communicate the danger posed by bushfire conditions to the public, land managers, and emergency services on any given day. The system, which has evolved significantly following the recommendations of royal commissions and post-fire reviews, provides a consistent, science-based method for translating meteorological and fuel conditions into standardised danger levels that trigger specific response protocols. The current national framework, introduced progressively from 2009 following the Victorian Bushfire Royal Commission and expanded after the 2019-2020 fire season, uses a colour-coded five-tier scale: Moderate, High, Very High, Severe, Extreme, and Catastrophic (Code Red) — with the Catastrophic category representing conditions under which fires will be uncontrollable, unpredictable, and fast-moving. The underlying fire danger rating is calculated from the McArthur Forest Fire Danger Index (FFDI) and the Grassland Fire Danger Index (GFDI), which themselves integrate temperature, relative humidity, wind speed, and drought factor data derived from Bureau of Meteorology forecasts. In a forestry operations context, fire danger ratings have direct implications for when harvesting, burning, and mechanical site preparation activities can safely proceed, with most state forestry regulations and workplace safety frameworks prohibiting high-risk operations above certain rating thresholds. Automation and remote sensing technologies are increasingly being integrated with fire rating systems to enable real-time operational decision-making, including automatic suspension of harvesting machine operations, alerting of crews in the field, and adjustment of planned burning schedules based on forecast rating trajectories.
| Field |
Value |
| Company |
Modelva Systems |
| Type |
Company |
| FWPA RD&E |
2.2 |