Fire Weather Index

Numerical rating of fire intensity. It is suitable as a general index of fire danger.

Description & Technical Information


The Fire Weather Index (FWI) is a numeric rating of fire intensity, dependent on weather conditions. This is a good indicator of fire danger because it contains both a component of fuel availability (drought conditions) and a measure of ease of spread. This is a variable of the Fire Weather Index rating system designed and adopted by the Canadian Forest Service. The dataset has been developed through a collaboration between the Joint Research Centre and ECMWF under the umbrella of the European Forest Fire Information (EFFIS) system and the Global Wildfires Information System (GWIS), a joint initiative of the GEO and the Copernicus Work Programs.

Technical information

Coverage Global
Horizon 10 days
Time Resolution 1 day
Spatial Resolution O1280, ~9 km [HRES]; O640, ~18 km [ENS]
Update Once a day following the 12 UTC ECMWF forecast release
Nature Raster Maps
Availability , , ,

Model or Algorithm