Malaysia Fire Danger Rating System (FDRS)
Fine Fuel Moisture Code (FFMC)
The FFMC values shown on the map are numerical ratings of the moisture content of litter and other cured fine fuels. The FFMC indicates the relative ease of ignition and flammability of fine fuels. Thus, the FFMC is used as an indicator of ignition potential or the potential for fires to start and spread in the area. (Fine Fuels: Slash fuels, grassland, lalang, bushes etc.).
The meteorological variables used (temperature, relatuve humidity, rainfall, wind speed) are those measured at principal meteorological stations throughout the country.
Please refer to the scale in the table below for interpretation of the FFMC maps:
DUFF Moisture Code (DMC)
The DMC values shown on the map are numerical ratings of the average moisture content of a loosely compacted surface organic layers (duff). The code indicates fuel consumption of surface organic layer with low bulk density and medium-sized woody material.
Please refer to the scale in the table below for interpretation of the DMC maps:
Drought Code (DC)
The DC values shown on the map are indicative values of the moisture content of a deep layer of compact organic matter. Peat soil is an example of deep compact organic soil. The DC is used to indicate the potential for fire to smoulder in peat which is the primary cause of smoke and haze in Southeast Asia. It can also be used as an indicator of difficulty in extinguishing deep burning peat fires as well as an early warning indicator of serious haze events.Please refer to the scale in the table below for interpretation of the DC maps: