Fire Weather Maps

Duff Moisture Code

The Duff Moisture Code is a component of the Canadian Forest Fire Weather Index (FWI) System. It is a numeric rating of the average moisture content of loosely compacted organic layers of moderate depth. This code gives an indication of fuel consumption in moderate duff layers and medium-size woody material.

Forecasted weather data provided by Environment Canada. More information about forecasted weather is available in the Background Information.

More information about the Canadian Forest Fire Weather Index (FWI) System is available in the Background Information.

Maps updated daily, year-round.