essay on thunder storm
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THUNDER STORM IS A STORM OLIS JAIAOK
Answer:
of Thunderstorms 3. Conditions 4. Thunderstorms and Weather 5. Classification.
Essay # Definition of Thunderstorms:
Thunderstorms are local storms characterized by swift upward movement of air and heavy rainfall with cloud thunder and lightning. According to A.N. Strahler “a thunderstorm is an intense local storm associated with large, dense cumulonimbus clouds in which there are very strong updraft of air.”
Because of heavy downpour associated with thunderstorms they are also called ‘cloud bursts’ but the rainfall is of very short duration. Thunderstorms differ from cyclones in that the latter are almost circular in shape wherein winds blow from outside towards the centre while the former is characterized by strong updraft of air. They are considered to be special case of convective mechanism.
Essay # Structure of Thunderstorms:
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A thunderstorm consists of several convective cells which are characterized by strong updraft of air. Each cell passes through a phase of life cycle consisting of youth, mature and old stages. It may be pointed out that different cells in a single thunderstorm may be in varying stages. The first stage (youth) is called cumulus stage when warm air rises strongly upward and helps in the formation of clouds.
The second stage or mature stage is characterized by both upward and downward movement of winds and occurrence of rainfall. The third stage or senile stage or dissipating stage is characterized by downward movement of winds which spread over the ground surface and stop vertical movement of winds. Clouds spread in the sky in umbrella shape and become altostratus and cirrostratus resulting into dissipation of thunderstorm.