![]() Along the path of the strike, sap boils, steam is generated and cells explode in the wood, leading to strips of wood and bark peeling or being blown off the tree. Response of Trees to LightningĪ tree’s biological functions and/or structural integrity are affected by lightning strikes. Many of these trees line our community streets and surround our homes, schools and businesses. Tall trees are the most vulnerable, especially those growing alone in open areas such as on hills, in pastures or near water. ![]() Trees occupy a particularly susceptible position in the landscape, since they are often the tallest objects. Lightning detection systems in the United States sense an average of 25 million lightning strikes per year. At any given moment, there are 1,800 thunderstorms in progress somewhere across the earth. Each strike of lightning can reach more than five miles in length, and produce temperatures greater than 50,000 degrees Fahrenheit and an electrical charge of 100 million volts. Lightning can have devastating effects on people, property and trees. ![]() Lightning is one of nature’s most powerful forces. Coder Professor, Silvics/Ecology Warnell School of Forest Resources The University of Georgia Vandergriff, UT Extension Urban Horticulture & Forestry, Kim D. ![]() Clatterbuck, Associate Professor Forestry, Wildlife & Fisheries University of Tennessee, David S. ![]()
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