Summary: Forest fires are a global environmental problem closely linked to global warming or air pollution. There are many disciplines, experimental and social, that have something to say about it. We analyze the relationship between the mainly weather in the lower atmosphere and the emergence and development of fires. While we do not establish a causal relationship meteorología-incendios (Lightning is the only direct cause) yes, we concluded that, given the same causes, the fires were not started and developed with the same ease every day, depending on weather parameters , including stability and moisture. We have applied the model (mesoescalar) GD prediction of the risk of fire, originally designed for Galicia between the years
1981-1985, in the period 1993-2003 in Galicia and in the provinces of Leon, Zamora and Salamanca. Thus, seeking to prove the validity and validity of the model space. Asumida this validity, we have developed strategies to defend against fire based on the model, whose implementation in the period of study has led to excellent results. We have also shown that the model considered by implication the moisture content of fuel fine dead. In order to compare the model GD with a similar, we have applied the model of Haines in Galicia, breaking down their categories in a number of varieties depending on their stability parameters and humidity. The results were very significant. Finally, it has conducted an analysis overview of the occurrence of fires in Galicia, Catalonia and Andalusia, watching different situations dipole and it has been observed that the origin of the influx of masses is very important when considering the number of fires in each Community.
