Vortex Turbulence 1
Vortex Turbulence 1 : Horizontal whirlwind(s) created in the wake of fixed- and rotary-wing aircraft that are in flight. Under certain atmospheric conditions, this turbulent air can be projected to the ground and in turn adversely affect fire behaviour. A small fire or segment of a fire perimeter can unexpectedly flareup, particularly if the wind speed is light and an unstable atmosphere exists. Note: Rotor Downwash