Fire Storm 5 : Violent convective columns caused by large continuous areas of fire, often appearing as tornado-like whirls. Can also occur from uneven terrain as fire spreads through an area. Are associated with extreme fire behavior
National Wildfire Coordinating Group (NWCG), Glossary of Wildland Fire Terminology, NWCG Program Management Unit, National Interagency Fire Center, Boise, ID, USA 2014. http://www.nwcg.gov/pms/pubs/glossary/pms205.pdf, (For Fr - Amer) {45}