FlyingJ 0 #1 March 4, 2007 The pics posted of the wildfire in Austrailia made me think about some pretty amazing fire intensity I witnessed the other day. My wildland fire crew does primarily prescribed fire during this time of year and a couple days ago we saw some pretty intense fire created weather. Most people are aware that fire requires oxygen to burn. When a fire gets big enough it can actually create its own weather patterns in the process of sucking up every bit of oxygen it can get to. The videos linked below are from a prescribed burn a couple days ago in southeast Texas. Our winds died completely, so in order to keep the fire moving we fired off all four sides of the unit at once and then ignited the interior using flares. Once the fire got good and hot in the center it began creating its own wind and pulled the fire in from the lines, eventually resulting in some pretty intense fire whirls. When you look at the video, keep in mind that a couple hundred yards away, out of the area effected by the fire, the winds were completely dead, so all of the wind you see is being created by the fire in the center. The third link is to a fire whirl we saw after pulling out of the unit and taking a break while waiting for the national weather service to give us a new spot weather forcast. The videos don't show big massive fire or 50 foot flames. What you are seeing is the weather created on site by the fire further into the unit. Close up http://www.youtube.com/watch?v=B_pVyZ7cpIw Close up, continued http://www.youtube.com/watch?v=f48CaWQKlnk From staging http://www.youtube.com/watch?v=r1EcifWRZpU jason.Killing threads since 2004. Quote Share this post Link to post Share on other sites
MF42 0 #2 March 4, 2007 That was very cool; especially the vortices inside of a vortex in the second video. Matt Quote Share this post Link to post Share on other sites
