Limited data a challenge for accurate weather prediction: M Rajeevan

This is why IMD provides an assembled forecast, which is given as a probability

The recent floods in Bengaluru have raised many concerns regarding the increase in extreme weather events and its impact on urban planning. M Rajeevan, distinguished scientist at the National Centre for Earth Science Studies and former secretary of the Ministry of Earth Sciences, in an interview, tells Karthik Jerome says forecasting may go wrong because parameters and equations are derived from past data, and they may not work very well with the change in the mean temperature. Edited excerpts:

What challenges are weather forecasters facing in coming up with accurate predictions?

There is a general tendency (of the layman) to