Hyderabad: Two storms, two routes

Experts say that the convectional activity leading to formation of cumulonimbus clouds marks the location of a storm.

Update: 2016-05-22 00:19 GMT
Experts say that the convectional activity leading to formation of cumulonimbus clouds marks the location of a storm.

Hyderabad: Friday’s storm took the opposite route when compared to the May 15 storm. Last week, the storm had cut a swathe through colonies in a narrow path from Begumpet to Padmaraonagar whereas Friday’s storm passed through Jubilee Hills, Banjara Hills, Panjagutta and Madhapur.

Experts say that the convectional activity leading to formation of cumulonimbus clouds marks the location of a storm. They tend to form in the afternoon and move a few kilometres before they mature.

Prof. Subba Rao from the Centre for Atmospheric Sciences and Weather Modification Technologies, JNTU, said that unlike cyclonic storms, thunderstorms are a local phenomenon.

 The location of a thunderstorm is based on convectional activity, conditions that favours formation of cumulonimbus clouds. The main factors include temperature, moisture in the atmosphere, pressure and wind. When these conditions are met, clouds form over these areas

“A cyclonic storm follows a path. Thunderstorms form vertically over one area. For example, if Kukatpally’s local weather has favourable conditions, clouds will form vertically upwards at Kukatpally. It may move but will not have a path; the movement will be mostly around the same area,” the professor said.

IMD director Y.K. Reddy said, the storm on Friday moved from north to south, while the one on May 15 went from south to north. On Friday there was a slight effect of a Cyclone. The IMD’s Doppler report on weather conditions is available at www.imd.gov.in.

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