An article that goes over flashover and provides some sample videos. Flashovers are a rapid event that involve a significant increase in fire growth and development. Typically this is a change from a fire located at a specific source or "fuel package" to a fire that takes over every other combustible object of the compartment involved without actual flame contact. The heat transfer at and beyond flashover is primarily by radiation.
An article on flashover. It includes some reports and video.
An article about the definition, description and types of flashover. It is the near simultaneous ignition of all combustible material in an enclosed area. When certain materials are heated they undergo thermal decomposition and release flammable gases.
An article that discusses flashover. It includes photos. The scientific definition of flashover states it is caused by the radiation feedback of heat. Heat from the growing fire is absorbed into the upper walls and contents of the room, heating up the combustible gases and furnishings to their auto-ignition temperature. This build up of heat in the room triggers flashover.
Video length: 4 min. This video shows a firefighter entered the burning structure, then bailout because of flashover.
Video length: 5 min 40 secs. A silent video from NIST experiments on flashover.
Video length: 1 min 47 secs. A video that shows a flashover.