Recently the meteorologists predicted that due to no major heat waves recorded in the core zones so far and “excess rainfall” across the country, this summer is turning out to be unusual one.
Usually, the Summer starts in March in the core heat wave zones of the north, central and east India, and become strong in April and May until the first week of June, when the monsoon winds arrive. Apart from the northern and eastern plains, central India’s Vidarbha-Marathwada region, Gujarat, and parts of southern India in Andhra Pradesh and Telangana are known as core heat wave zones, where temperatures rise above 45 degrees Celsius.
In western Rajasthan, the maximum temperature even crosses the half-century mark.
According to the India Meteorological Department, there will be above normal temperatures in core heat wave zones this summer. However, the temperature has not peaked to that level yet.
Instead, India received 25 per cent excess rainfall between March 1 and May 11.
As per the sources, March recorded 47 per cent more rainfall than normal and April saw 8 per cent more. ‘This is not a usual phenomenon,’ said IMD Director-General Mrutunjay Mohapatra.
The IMD declares a heat wave when temperatures rise 5-6 degrees Celsius above normal. If it is above 7 degrees Celsius than normal, the IMD declares a severe heat wave. And there was one heat wave in Gujarat in April but it was not widespread.
This month, temperature in parts of Rajasthan rose above 40 but a western disturbance brought rains and pulled the mercury down again.
A western disturbance is a cyclonic storm originating in the Mediterranean and traversing across the central Asia. When it comes in contact with the Himalayas, it brings rain to the plains and hills. This is a crucial phenomenon in the winters.
As per information, parts of east and south India have also been witnessing thunderstorm activities which have kept the temperatures below the normal. But the temperature could rise after May 16.