 Because grass fires are essentially open to the full force of the wind, they can respond very quickly to changes in the wind, but also the gusts in the wind. So it can go from a very quiescent fire to a really raging fire in a matter of seconds. Grass is the most predominant fuel in Australia. When exposed to heat, they ignite very easily and they burn very quickly. The fastest recorded grass fire is 27 kilometres an hour, which is sustained for 45 minutes. They are as dangerous as any other bush fire. If you were caught in a grass fire, there's no other option but to seek shelter because you could not run through the flames and hope to survive. There's no questioning the facts. Learn more at emergency.vic.gov.au Authorised by the Victorian Government, Melbourne.