Firebrands which are carried high into the convection column and then fall out downwind beyond the main fire, starting new fires. Suchspotting can easily occur 1/4 mile or more from the firebrands' source
US Forest Service, Glossary of Fire Behavior & Fire Weather Terms, Washington, D.C., USA 2010. http://www.erh.noaa.gov/phi/fire_glossary.htm, (For Fr - Amer) {505}