During the last few years the frequency of extreme rainfall events has been continuously increasing in India, the reason is not very clear, although many climate scientists have pointed towards global warming as the probable cause.
Recently in Chennai, the state meteorological department predicted light rainfall, but extremely heavy rainfall was recorded – 20cm in 5 hours. It resulted in death of some people and left many areas waterlogged.
“We have short and medium-term weather forecasts but these events are not captured in those. There are continuous changes in the atmosphere, a dynamic process just like the human body. We do not expect such rainfall events during this time of the year but we have to expect the unexpected now in weather, we expected moderate rain on Thursday. But extremely heavy rain occurred in a small area covering parts of Chennai” said S Balachandran, deputy director general of meteorology, IMD Chennai.
According to IMD this particular event can not be attributed to climate change, the director general of IMD said that it is possible that climate change is resulting in the extreme rainfall events across India. Last year several cloudburst were reported across Maharashtra that resulted in landslides and floods. Mahabaleshwar in the Western Ghats recorded 60cm rainfall in 24 hours last year. More than 20cm of rainfall in 24 hours is considered to be an extreme rainfall event.
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