Weather Wisdom: Hanlon Elementary School Group 2

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Hanlon Elementary School was featured in this week’s Weather Wisdom. In the second group, Emma asked the question, “how is thunder created?”

Well, in a split second when lightning happens, the air is then heated around it. This heated air expands explosively, which creates a shockwave as the surrounding air is quickly compressed. When the air contracts, it is then cooled. This process makes the initial crack, or rumble, sound as the column of air vibrates.

Also, another fact is you always see lightning before you hear thunder because light travels faster than sound. Always remember the saying, when thunder roars, stay indoors.
 

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