Fireball 6 : Source: CCS. Burning of a flammable gas or vapour cloud. Note: The buoyancy of the hot combustion products may lift the cloud from the ground, forming a mushroom shape. Hazard is primarily due to thermal effects
Cabinet Office, UK Civil Protection Lexicon Version 2.0: Explanatory Notes and Version History appear in separate sheets Lexicon, Local Resilience Forum London, UK 2011. http://www.localresilienceforum.org.uk/files/uploa ds/lexicon2.0_2011.pdf, (Emr Mgt - Brit) {978}