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India has received 28 percent of the excess rainfall in the pre-monsoon season so far, with the central region measuring precipitation 268 percent above normal, according to data from the Indian Meteorological Department (IMD).
Eastern and northeastern India recorded a deficit of 29 percent – 141.5 mm versus 199.9 mm – from March 1 to May 3.
Northwest India i.e. Punjab, Haryana, Delhi, Rajasthan, Uttar Pradesh, Himachal Pradesh, Jammu and Kashmir, Ladakh and Uttarakhand recorded 18 per cent more rainfall (98.3 mm vs. The normal range is 54.2 mm) during this period.
Central India, including Madhya Pradesh, Chhattisgarh, Odisha and Maharashtra, recorded 268 percent of the excess rainfall – 67 mm against the normal rate of 18.2 mm.
From April 21 to 22, large parts of the country, except for the eastern and northeastern parts, experienced a prolonged wet spell due to several consecutive weather systems.
As a result, most parts of the country experienced much lower than normal temperatures during this period.
According to IMD, nowhere in India has reported a heat wave since April 21.
A senior scientist at the International Institute of Physics (IMD) said such a long period without heatwaves in April and May is “extremely rare”.
May usually has the highest number of heatwave days in India. During the month, temperatures can rise above 45°C, especially in the northern, northwestern, and central parts of the country.
A heat wave is declared if the maximum temperature of a station reaches at least 40°C in the plains, at least 37°C in the coastal areas and at least 30°C in the mountainous areas, and the deviation from normal is at least 4.5°C. .
India recorded its hottest February this year since record-keeping began in 1901 and the International Institute for Democracy predicts above-normal maximum temperatures in most parts of the country and more heatwave days in the central, eastern and northwest regions from April to June.
In April, the Met Office predicted that it would rain normally in India during the southwest monsoon season (June to September) despite the development of El Niño conditions.
She said it was 96 percent more likely (with a 5 percent margin of error) than the average long span of about 87 cm.
El Niño, a warming of waters in the Pacific Ocean near South America, is generally associated with a weak monsoon and dry weather in India.
This year’s El Niño conditions come after three consecutive years of El Niño events. La Nina, which is the opposite of El Nino, usually brings good rainfall during the monsoon season.
However, IMD has emphasized that not all El Niño years are bad monsoon years.
There have been 15 El Niño years between 1951 and 2022, six of which have recorded ‘normal’ to ‘above normal’ monsoon rainfall.
According to the IMD, precipitation between 96 percent and 104 percent of the 50-year average of 87 cm is considered “normal.”
Rainfall less than 90 percent of the long-period average is considered ‘minus’, between 90 percent and 95 percent ‘below normal’, and between 105 percent and 110 percent ‘above normal’ ”And more than 100 per cent is Excess Precipitation.
India received 971.8mm of rain in the monsoon season in 2019, 961.4mm in 2020, 874.5mm in 2021 and 924.8mm in 2022, according to IMD data.
The country recorded 804.1 mm of rain per season in 2018, 845.9 mm in 2017, 864.4 mm in 2016 and 765.8 mm in 2015.
Heatwaves early hit India’s wheat production last year, prompting the country, the world’s second-largest wheat producer, to ban exports of the grain in May.
In March this year, the government said that the wheat export ban will continue as long as the country is not comfortable with domestic supplies to meet food security needs.
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(This story has not been edited by News18 staff and is republished from a syndicated news agency feed.)
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