Forecasting represents the new credo in the reorganization of risks prevention. What does the introduction of such technology mean in terms of fire-fighting practice and policy? By applying Practice-Based Studies, forecasting practice emerges as a form of practical knowledge resulting from the alignment of the forecasting tool with foresters’ former competences, expertise, practices and tools. The acknowledgement of practical and scientific knowledge linked to forecasting allows the identification of the different organizational cultures linked to fire-fighting. For foresters wildfire is mainly a criminal act and forecasting a policing activity. This use of the artefact silences alternative approaches to wildfire-fighting such as the prevention of unintentional acts. While forecasting technology may reproduce forms of blindness in the future, anticipation becomes then an interesting research objet, embedded in dominant professional cultures and forms of knowledge.