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EquityWireMonsoon Forecast: India may get above-normal rain in Aug-Sep as La Nina to set in, says IMD
Monsoon Forecast

India may get above-normal rain in Aug-Sep as La Nina to set in, says IMD

This story was originally published at 16:04 IST on 1 August 2024
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Informist, Thursday, Aug 1, 2024

 

--IMD: India rainfall in Jul 9?ove normal at 305.8 mm 

--Jul rainfall in south peninsula 36.5?ove normal at 279.2 mm 

--Jul rainfall in central India 33?ove normal at 427.2 mm 

--Jul rainfall in northwest 14.3?low normal at 179.7 mm 

--Jul rains in east, northeast 23?low normal at 325.3 mm 

--India Jul average temperature 2nd highest since 1901 

--Minimum temperature in India in July highest since 1901 

--India Aug-Sep rainfall seen above 106% of long period average 

--CONTEXT:IMD details forecast for rains, temperature in Aug, Aug-Sep 

--Weak La Nina conditions expected to set in by Aug end 

--La Nina conditions to last till year-end 

--India Aug rains seen normal at 94-106% of long period average 

--Normal to above normal rains seen over most of India Aug-Sep 

--Above normal maximum temperature seen over most of India Aug 

--Below normal rains seen in Aug over many areas in south India 

--Central, nearby north India may get below normal rains in Aug 

 

NEW DELHI – Rainfall over India is likely to be above normal in the second half of the Jun-Sep monsoon season as La Nina conditions are expected to set in by the end of August, the India Meteorological Department said today. Rainfall during August and September is likely to be above normal at over 106% of the long-period average, the IMD said in its latest long-range forecast for the monsoon season. 

 

The long-period average of rainfall over the country as a whole during Aug-September, based on historical data from 1971 to 2020, is about 422.8 mm. 

 

Weak La Nina conditions are expected to set in by the end of August and these conditions are likely to last over the country till the end of this year, the IMD said. La Nina will set in after a year of El Nino conditions over India. La Nina brings good rainfall to India, while El Nino is associated with a hotter and drier climate over the country. 

 

The weather bureau expects rainfall to be normal at 94-106% of the long-period average in August. The long-period average for rainfall over the country during August is 254.9 mm. The Met department also said rainfall during September is likely to be more intense than in August because of La Nina.  

 

The weather bureau expects rainfall over most of the country to be normal to above normal in Aug-Sep. Below normal rainfall is expected over many parts of northeast and adjoining areas of eastern India, Saurashtra and Kutch, and some pockets of central and peninsular India, it said. Similarly, for August, most parts of India are expected to experience normal rains, while below normal precipitation is likely over many areas in southern and central regions. Some pockets of eastern and northwestern India are also expected to experience lower than usual rainfall during this month. 

 

Over the next few days, extremely heavy rainfall is expected over central Maharashtra, Konkan and Goa, while interior parts of Gujarat are also likely to experience similar weather conditions on Saturday. During the second week of August, heavy rainfall is expected over most parts of the northern plains and eastern parts of the country, the bureau said. 

 

Additionally, above normal maximum temperatures are likely over most parts of the country in August, while normal to below normal maximum temperatures are expected over some areas of the Gangetic plains, central India and the southeast coast of the country, according to IMD. 

 

Further, the bureau said the average mean temperature over the country during July was the second highest since 1901, while the average minimum temperature was the highest since the same period. El Nino, which turned neutral last month, was mainly responsible for higher temperatures throughout India. 

 

In July, India received 9?ove normal rainfall at 305.8 mm, mainly because of higher-than-usual precipitation in central and southern peninsular India. In central India, rainfall was 33?ove normal at 427.2 mm in July, while it was nearly 37% higher at 279.2 mm in south India, according to IMD. 

 

Northwestern parts of the country saw below normal rains at 179.7 mm, over 14?low normal. Rainfall in east and northeast India was more than 23% lower than usual at 325.3 mm last month. The IMD said rainfall in eastern and northwestern parts of the country was deficient during last month as the monsoon trough was south of its normal position. Mrutyunjaya Mohapatra, the director general of meteorology at IMD, said in a virtual conference today that rainfall was also poor in these regions due to the development of low pressure areas. However, he expects the monsoon trough to be north of its normal position in the coming weeks, which is likely to increase rainfall activity.  End

 

Reported by Sayantan Sarkar

Edited by Tanima Banerjee

 

 

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