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Lightning
 
     It is estimated that lightning strikes the earth 100 times each second. The typical Lightning stroke may span a potential difference of a
million volts with tens of thousands of amperes. Lightning may heat the air through which it passes to 15,000-30,000 *C. This is warmer
than the surface of the sun (5,700*C). The rapid expansion of the heated air causes a compressional wave that propagates out from the
stroke. This is more commonly known as Thunder.
     Property Loss- fire and other damage to structures, aircraft damage, livestock deaths and injuries, forest fires, disruption of
electromagnetic transmissions and other effects-is estimated at more than $100 million annually. The average annual death toll for lightning
is greater than for tornadoes and hurricanes. According to the National Center for Health Statistics, lightning kills about 150 Americans per
year and injuries about 250.
 
     Persons struck by lightning receive a severe electrical shock and may be burned, but they carry no electrical charge and can be
handled safely. A person apparently killed by lightning can often be revived by prompt mouth-to-mouth resuscitation, cardiac massage,
and prolonged artifical respiration. In a group struck by lightning, the apparently dead should be treated first. Those who show vital signs
will probably recover spontaneously, although burns and other injuries may require some treatment. Recovery from lightning strikes is
usually complete except for possible loss or impairment of sight or hearing.
     Some locations are particulary dangerous in thunderstorms. Of the lightning deaths caused each year, 11% are persons who were
taking shelter under trees, 8% were on open water, 7% were riding tractors, 4% were playing golf.
 
 
-LIGHTNING SAFETY RULES-
  1.  Stay indoors, and don't venture outdoors, unless absolutely necessary.
  2.  Stay away from open doors and windows, fireplaces, radiators, stoves, metal pipes, sinks, and plug-in electrical appliances.
  3.  Don't use plug-in electrical equipment like hair drypers or electric razors during the storm.
  4.  Don't use the telephone during the storm-lighting may strike telephone lines outside.
  5.  Don't take laundry off the clothes line.
  6.  Don't work on fences, telephone or power lines, piplines, or structural steel fabrication.
  7.  Don't use metal objects like fishing rods and golf clubs. Golfers wearing cleated shoes are particularly good lightning rods
  8.  Stop tractor work especially when the tractors is pulling metal equipment, and dismount.Tractors and other implements in metal
    contact with  the ground are often struck by lightning.
  9.  Get out of the water and off small boats.
  10.  Stay in your automobile if you are traveling. Automobiles offer excellent lightning protection.
  11.  Seek shelter in buildings. If no buildings are available, your best protection is a cave, ditch or depression.
  12.  When there is no shelter, avoid the highest object in the area. If only isolated trees are nearby, your best protection is to crouch
    in the open, keeping twice as far away from isolated trees as the trees are high.
  13.  Avoid hilltops, open spaces, wire fences, metal clothes lines, exposed sheds, and any electrically conductive elevated objects.
  14.  When you feel the electrical charge-if your hair stands on end or your skin tingles-lightning may be about to strike you. Drop to the

          ground immediately.