Sep 22, 2016

Two centimetre rain in 60 minutes brings Hyderabad to halt

Quthbullapur, Hyderabad, Telangana
India
by
Rahul Devulapalli, Suresh Krishnamoorthy, Serish Nanisetty
,
The Hindu
Photo: A car floating in a nala at Qutbllapur village, following heavy rain on the outskirts of Hyderabad on Wednesday. Photo: G. Ramakrishna
Photo: A car floating in a nala at Qutbllapur village, following heavy rain on the outskirts of Hyderabad on Wednesday. Photo: G. Ramakrishna

One of the clearest changes in weather globally is the increasing frequency of heavy rain.[1] As the global average temperature increases, so too does the ability of the atmosphere to hold and dump more water when it rains.[2] The average moisture content of the atmosphere has increased by about 4 percent since the 1970s, as expected from the Clausius–Clapeyron law, and Storms reach out and gather water vapor over regions that are 10-25 times as large as the precipitation area, thus multiplying the effect of increased atmospheric moisture.[2][3]

Fears of heavy rainfall on Thursday came true as eight areas in Hyderabad recorded over 20 mm rainfall in just 60 minutes.

Life came to a grinding halt in several parts of the city, as overflowing streets, water logging in low lying areas and arterial junctions made life of people miserable.

West Maredpally received the highest amount of 31 mm rainfall followed by Chilakalaguda (30 mm) and Monda Market (28.7 mm). Srinagar Colony, Trimulgherry, Balanagar, Fever Hospital and Narayanguda received over 20 mm rain