In a message dated 06-10-15, mark lewis said to Holger Granholm:   
      
   Good morning Mark,   
      
    HG> Since the speed of sound is 360 m/s, 4 seconds will show that the strike   
    HG> was about 1.44 km away   
      
   ml> ahhh... so maybe it should be a 5 second count then... i always got   
   ml> mixed up and settled on 4 seconds... it is only an estimate,   
   ml> anyway... one might count their "one one thousands" too fast or too   
   ml> slow...   
      
   Well, 1.44km is quite close to one mile (=1.6 km) so if you want to keep   
   that 4 second count it will tell you that the distance to the lightning   
   strike was a bit less than one mile.   
      
   OTOH, you may also want to keep an eye (ear) on the speed by which the   
   thunderstorm is closing in. There's nothing that says that if the   
   previous strike was one mile away the next one can't hit you directly.   
      
   Have a nice day,   
      
   Holger   
      
   ---   
    þ MR/2 2.30 þ Stepping was invented by a 12-head family with one toilet   
      
    * Origin: Coming to you from the Sunny Aland Islands. (2:20/228)