Forest fire weather index

[2] The essential information needed to calculate this index is: The FWI was adapted for use in Australia, with large FWI values most commonly associated with high wind speeds, followed secondly by low relative humidities and then thirdly by high temperatures.

Météo France sends the IFM to civil defense authorities, which allows the prepositioning of men and vehicles, especially air units.

[4] Each provincial forest fire prevention authority is calculating the FWI for the different regions under their jurisdiction.

Provided information is based on FWI values computed at 20 weather stations representative of the climatic diversity of the country.

[5] FWI has been adopted in 1980s at Meteorological and Hydrological Service of Croatia where it is computed daily and used as a predictor in forest fire risk assessment.