Saturday, 23 May 2015

Upward lightning primarily occurs when there is a nearby positive cloud-to-ground flash.


Upward lightning primarily occurs when there is a nearby positive cloud-to-ground flash. The electric field change caused by the preceding flash causes an upward positive leader to initiate from a tall object such as a building, tower or wind turbine. It is the shape of the tall object and the resulting enhancement in the electrical field that makes it possible for an upward leader to form following a nearby flash. 

Know more:
http://www.rmets.org/weather-and-climate/weather/upward-lightning

Watch:
https://www.youtube.com/watch?v=RDDfkKEa2ls

#naturalphenomena   #upwardlightning

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