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Flame Spread in a grass fire

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Uploaded on Apr 21, 2011

(click HD) This video shows fire spread and flame depth during a prescribed burn in a tallgrass prairie. It demonstrates why grassfires are so dangerous and how unlikely an individual is to survive a burn over or entrapment. Due to the wide zone of superheated air in front and behind the flame front, running through this will most likely result in death. Max fuel height is only about 4 feet. Average fuel height is about 2 feet. RH is in the low 40's and wind is 6mph. That is, this is a low fuel, low wind, good RH burn. These flames are small.

Here is a new video showing an unseen danger. Low oxygen levels in front of the fire. https://www.youtube.com/watch?v=cca1y...

The Video was shot with The Fire Cam Mini HD from Fire Cam Products. This particular burn is closed and has black all around at this point. In the video I am lighting off the interior with an eye to make this video.

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