Wind has a strong effect on fire behaviour due to the fanning effect on the fire and may present the most persistent problem in Forest Fire Management. It can change speed, direction, or become quite gusty. Wind influences the rate of spread and intensity of the fire. High winds will cause the front of a fire to move ahead rapidly and may cause the fire to crown into the top of the trees and to jump barriers that would normally stop a fire. Moreover, high winds, updrafts & downdrafts occurring during the fire are important parameters, needed to be measured accurately on-site when the fire is in progress and probably out-of-control. This information is important for the firefighting aircrafts take off, resources dispatching and the safety of firefighting personnel on the ground.