India received normal rainfall during Southwest Monsoon between June and September, says IMD

The IMD said the Northeast Monsoon, which brings rainfall to southern states from October to December, is likely to be normal.

Press Trust of India September 30, 2021 22:12:09 IST
India received normal rainfall during Southwest Monsoon between June and September, says IMD

Representational image. AFP

New Delhi: The country received "normal" rainfall during the four-month Southwest Monsoon season from June to September, the India Meteorological Department (IMD) said on Thursday, even as there is an extended period of rainfall.

The IMD said the Northeast Monsoon, which brings rainfall to southern states from October to December, is likely to be normal.

IMD Director General Mrutunjay Mohapatra said conditions are very likely to be favourable for the commencement of withdrawal of the Southwest Monsoon from some parts of northwest India from around 6 October.

Southwest Monsoon withdrawal from northwest India normally begins from 17 September.

"Quantitatively, 2021 all India monsoon seasonal rainfall during 1 June to 30 September has been 87 cm against the Long Period Average of 88 cm of 1961-2010 (99 percent of its LPA)," Mohapatra said.

"Southwest Monsoon seasonal rainfall for the country as a whole during June-September has been normal (96-106 per cent of the LPA)," he added.

This is for the third consecutive year that the country has recorded rainfall in the normal or above normal category. Rainfall was above normal in 2019 and 2020.

Southwest Monsoon is critical for the Indian economy whose GDP is still heavily dependent on agriculture and its allied activities. It is crucial for filling the reservoirs which are used to supply drinking water and irrigate vast swathes of land.

The rainfall over the country as a whole was 110 percent in June, 93 and 76 percent in July and August respectively— the months that bring the maximum rains. However, the shortfall of July and August was compensated in September which recorded rainfall 135 percent of the LPA.

In its four divisions, the IMD said, the Southwest Monsoon rainfall was normal over northwest India (96 percent) and central India (104 percent), below normal over east and northeast India (88 percent), and above normal over South Peninsula India (111 percent).

Nagaland, Manipur, Mizoram, Tripura, Assam, Meghalaya, Arunachal Pradesh in the Northeast, Jammu and Kashmir, Ladakh, west Uttar Pradesh and Lakshadweep received deficient rainfall.

West Rajasthan, Haryana, Delhi, Andhra Pradesh, Telangana, north interior Karnataka, Gangetic West Bengal, Konkan and Goa, Marathwada and Andaman and Nicobar recorded excess rainfall during the monsoon season.

The Southwest Monsoon made onset over Kerala on 3 June, after a delay of two days. It rapidly covered central, west, east, northeast and south India by 15 June.

It also covered many parts of north India, even Barmer and Jaisalmer—its last outposts— but the monsoon winds failed to reach Delhi, parts of Haryana and west Uttar Pradesh.

It then witnessed a lull. It finally covered Delhi, parts of Haryana and west Uttar Pradesh, on 13 July, five days after its normal onset date, belying IMD's forecasts.

Mohapatra said it again witnessed a lull from 3 August and entered the active phase of 18 August. The month recorded large deficiency. It again entered an active phase.

The season also saw formation of 13 cyclonic circulations— low pressure, well marked low pressure area, depression, deep depression and cyclone—which are critical during the rainfall period.

"It is normal to have 13 systems, but they were not uniformly distributed," Mohapatra added.

June saw two low pressure areas, July recorded two low pressure areas (LPA) and two well-marked low pressure areas (WML). August recorded four LPAs. However, September recorded one cyclone (Gulab), one deep depression and four WML, he added.

In its forecast for the Northeast Monsoon, the IMD said, Northeast Monsoon 2021 is likely to be normal (89-113 percent of the LPA)."

Northeast Monsoon brings rains over Tamil Nadu, coastal Andhra Pradesh, Rayalseema, Kerala, south interior Karnataka and Lakshadweep.

The monthly rainfall for October 2021 over south peninsula is most likely to be normal.

Updated Date:

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