Tuesday, February 21, 2012

Severe Weather Awareness Week - Lightning


Nationwide in 2011, 26 people were killed by light­ning. Fortunately, none of those killed were in the Vol­unteer State. Since 1959, nearly 4,000 people in the United States, including 140 in Tennessee, have died. As a result, Tennessee is in the Top 5 of states in terms of lightning fatalities.

In an average year, 25 million lightning strikes are recorded across the United States alone.  Lightning is an incredibly powerful electrical discharge, containing up to 100 million volts of electrical charge and capable of reaching 50,000 degrees Fahrenheit.

Cloud-to-ground light­ning is the result of incred­ible differences in electrical charge between thunder­storms and the earth’s sur­face.

The sound of thunder travels around one mile ev­ery five seconds and is of­ten audible up to 10 miles. If you can see lightning and hear thunder at your loca­tion, you are in danger of being struck by lightning and your life is in immediate danger.

Rules for Safety

Stay away from windows.
Avoid telephones and electrical appliances (wires connecting to these devices run outside of the home and act as lightning rods).
Don’t wash dishes or take a shower. The pipes will conduct electricity.
Unplug computers and other sensitive electrical devices. Surge suppressors may not protect these items if lightning hits close to home.
Lightning can strike twice, and often will. 

This information was taken from the Tennessee Severe Weather Information Book provided by The National Weather Service and The Tennessee Emergency Management Agency



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