How can you measure the distance of a storm ?

AkismetAkismet Admin Posts:
How can you measure the distance of a storm ?


  • akhemkaakhemka Posts: 1,010Forum Coordinator
    You can count the seconds between seeing a lightning and then hearing the thunder. For examples if 5 seconds elap the storm would be about 1.7Km (1.05 miles) away.
  • AkismetAkismet Posts: 36Admin
    ?️That's cool! How do you calculate that ?
  • prajputprajput Posts: 311Admin

    At sea level the speed of sound in air is about 340 m/s. The speed of light is much much higher than that (about 300,000 kilometers per second!). So you will first see ? the light of the lightning and then you will hear ?️ the sound that arrives at lower speed. 

    Because of that you can count the seconds elapsing and then multiply by 340 to get the distance between you and the storm in meters.

    Of course this is a simple approximation, since the speed of sound can change with the air conditions. 

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