Canadian Fire Weather Index System

Canada Drought Code (DC) Map

DC represents the moisture content of deep, compact organic layers and reflects longer-term drying. It changes relatively slowly and is one of the FWI System's three fuel-moisture codes.

Natural Resources Canada · CWFIS
Drought Code (DC)

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What it means

How to interpret DC

Higher DC values generally indicate deeper organic layers have experienced greater cumulative drying. DC contributes to Buildup Index and can provide important seasonal context during prolonged dry periods.

Important limitation

Fire weather is context, not a local prediction

Drought Code is not the Canadian Drought Monitor and should not be treated as a direct measure of water supply, agricultural drought, evacuation risk or whether a wildfire will start.

How DC fits into CFFDRS

Canada's Fire Weather Index System connects weather observations to fuel-moisture codes and fire-behaviour indices. FireRadar keeps each component separate so users can see what is actually being measured or derived instead of receiving an opaque combined risk score.

Use official operational guidance for decisions

CWFIS products are broad national fire-weather guidance. Provincial, territorial, Indigenous, municipal and Parks Canada authorities remain responsible for operational fire danger, restrictions, wildfire response and emergency decisions.

Official methodology and source

FireRadar renders the official Natural Resources Canada CWFIS layer directly and preserves the upstream symbology. It does not interpolate a value when the source is unavailable or transform this component into a FireRadar property-risk score.