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Published on: 3/20/2008
Last Visited: 3/20/2008
Manatee County and some of its neighboring counties have among the worst conditions in the state, with the possible exception of a couple of counties in South Florida, said Jim Brenner, Florida Division of Forestry management administrator.
Manatee was a 483 on the Keetch-Byram Drought Index as of Tuesday night.The west side of the county was a bit more moist than East Manatee, probably due to its location on the coast and more thunderstorm activity there, Brenner said.
"From a forestry standpoint, we begin to get seriously concerned when (the index)'s in the 400, 500 range and very concerned when it's in the 600, 700 range," Brenner said.
Ideally the number is in the 300, 200 or even 100 range, but that isn't likely this time of year, Brenner said.
The index, which measures how much moisture is in the top 36 inches of soil, doesn't fluctuate as much as other factors that determine how bad a wildfire can be, he said.Other factors that go into a wildfire's level of severity are how dry the air is and atmospheric stability.
An unstable atmosphere is the tendency of air to move vertically.The more unstable the atmosphere is, the more likely a fire is to leave the surface and get into the tree canopy, Brenner said.
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Three things are necessary for a fire, Brenner said: drought; natural ignition (think lightning) or ignition on the part of a careless person; and an unstable atmosphere.
Fire season in Florida is pretty much 365 days a year, he said, but the busiest time for the Division of Forestry is January through the middle of June, with a peak in April, May and the first half of June.