Sheet lightning, also known as intra-cloud lightning, refers to lightning within a cloud that lights up as a ‘sheet’ of luminosity during the flash.

SOME people never see lightning; I have met one lady who cannot, and have heard of other instances. The question suggests itself, consequently, whether the duration of a flash of lightning is ...

The latter is sometimes referred to as "Sheet Lightning" and can light of the sky as the bolt scatters across the sky. A Flood Watch will remain in effect until 6 am Friday for Oahu.

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However, While fork lightning looks to be striking from cloud-to-ground there is a strong chance that sheet lightning can also be travelling from cloud-to-cloud (intracloud).

These two meteorological phenomena go hand in hand because of the incredible heat lightning generates. When lightning happens, the electrical bolt can heat the surrounding air to about 50,000 degrees.

THE correspondence on this subject (NATURE, vol. xxviii. pp. 4 and 54) can scarcely be said to contribute anything in support of the statement that sheat-lightning and the so-called summer or heat ...