The bachelor thesis deals with investigation of meteorological situation impact on occurrence and development of forest fire and the forest fire-fighting tactics. The first part is focusing the summarising the theoretical knowledge on forest fires and tactics of its fire-fighting. In the next part, we chose the specific forest fire which occurred in Koc locality, situated in Vernar cadaster unit. We described the fire behaviour from its observing up to the fire extinguishing activities completion. Using the FARSITE, we modelled various scenarios of meteorological situation (ait temperature, precipitations, wind speed) impact on forest fire behaviour. The results of modelling undergone further the statistical analysis in Statistica 12 environment. There was provided the fire site extent trend analysis considering the changing meteorological and wind condition and the correlation analysis. The results of trend analyses showed the differences in fire propagation during the day and night. But, the reason of the different fire behaviour were not only meteorological and wind parameters, but the increasing fuel moisture during the night, probably over the moisture of extinction moisture (25-30%). The results of correlation analyses showed very high degree of dependence between the fire site extent and the investigated factors.