For July 2022, an analysis of the daily district wise rainfall data from India Meteorological Department (IMD) shows that there were 809 (717 in July 2021) instances when district rainfall of a day was above 50 mm. [Considering that the normal monthly rainfall of India July is 285.3 mm, the average daily rainfall in this month is about 9.2 mm.] Such high rainfall instances included 663 (595 in July 2021) instances when rainfall was 50-100 mm, 107 (98 in July 2021) instances when it was 100-150 mm, 28 (17 in July 2021) times it was 150-200 mm and 16 (7 in July 2021) times above 200 mm. Interestingly, in June 2022[i] there were twenty seven instances when rainfall was above 200 mm, when the rainfall is supposed to be much below July rainfall. As noted in detailed article[ii], the July 2022 rainfall all over India was 16.8% above normal.
Continue reading “High Rainfall days in India’s districts in July 2022“Tag: South West Monsoon
June July 2022: District wise rainfall in India’s SW Monsoon
In the just concluded month of July 2022, the second month of India’s South West 2022 monsoon, India received 327.7 mm rainfall, 16.8% above the normal July rainfall of 280.5 mm as per India Meteorological department. In July 2021, the rainfall was 266.1 mm[i], about 6.7% below normal and in July 2020, the rainfall was 257.1 mm[ii], or about 9.9% below normal.
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June 2022: District wise rainfall in India’s SW Monsoon
In the just concluded month June 2022, the first month of India’s South West 2022 monsoon, India received 152.3 mm rainfall, 8% below the normal June rainfall of 165.3 mm as per India Meteorological department. In June 2021, the rainfall was 182.9 mm[i], about 11% above normal and in June 2020, the rainfall was 196.9 mm, or about 18% above normal and in June 2019 it was 33% below normal.
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DRP NB 200622: Erratic onset & progress of SW Monsoon in India
It is great to see an EDITORIAL on monsoon progress in one of India’s National newspapers, THE TIMES OF INDIA on June 20, 2022. The editorial figure of monsoon deficit of 32% at all India level is hugely outdated as it was for rainfall till 8.30 am on June 15. According to the latest figures of rainfall till 0830 am on June 19 available as we write this, the deficit is DOWN to just 8% as rainfall has been above normal on each of the last five days. The deficit in NW India has also reduced from 77% reported in TOI edit to 63% now. The monsoon has also covered much larger area except in North West India. The rainfall so far has already broken several records in terms of intensity of rainfall.
Nevertheless, the key message of the TOI EDIT, about our wrong cropping pattern and urgent need of the govt to come up with schemes to incentivise farmers to change to more appropriate cropping pattern is very important.
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Normal Rains Forecast for India’s SW Monsoon 2022
India Meteorological Department (IMD) has in their first forecast for India’s crucial South West Monsoon (June-Sept) 2022 has forecast[i] that India will receive 99% of Long Period Average (LPA) rain with a model error of +/- 5%. This means that IMD has forecast on April 14, 2022 that India is likely to get normal rainfall (96% to 104% of LPA) rains for the fourth consecutive year. IMD says that currently La Nina conditions are prevailing and are likely to continue during the monsoon.
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Heavy Rainfall in India in Oct-Nov 2021
India has seen rather heavy rainfall in October and November 2021, with October All India Rainfall being 33% above normal and November rainfall being record breaking 86% above normal. The combined Oct + Nov Rainfall was 48% above normal, and by Dec 7, as we write this, it is already 53% above normal for the period from Oct 1 to Dec 7, 2021.
While lingering South West Monsoon brought large part of the excess rainfall in first half of October, the unusually active North East Monsoon with continuous supply of moisture from Bay of Bengal has been the main reason for the high rainfall since late October. The onset of La Nina has also contributed to this and with La Nina forecast to remain in place till March 2022, we are in for continued wet spell in South India, it seems. IMD has already forecast above normal rainfall in South Karnataka during Dec 2021 to Feb 2022.
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SW Monsoon 2021: District wise rainfall in India
In the just concluded South West Monsoon 2021, India received 874.6 mm rainfall, about 99.32% of the Normal SW Monsoon rainfall or just 0.68% less than the normal SW Monsoon rainfall of 880.6 mm as per India Meteorological department. This rainfall will now be categorised as normal rainfall though till the beginning of Sept 2021, the rainfall at national level was 10% below normal. The massive 34.96% surplus rainfall in Sept 2021, thanks to a number of circulations contributed from the Bay of Bengal, ending with Cyclone Gulab and now possibly Cyclone Shaheen has contributed to wipe out the deficit.
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July 2021: High Rainfall days in India’s districts
An analysis of the daily district wise rainfall data from India Meteorological Department (IMD) for the month of July 2021, the 2nd month of India’s South West Monsoon 2021 shows that there were 717 instances when district rainfall of a day was above 50 mm. [Considering that the normal monthly rainfall of India July is 285.3 mm, the average daily rainfall in this month is about 9.2 mm.] Such high rainfall instances included 595 instances when rainfall was 50-100 mm, 98 instances when it was 100-150 mm, 17 times it was 150-200 mm and 7 times above 200 mm. Interestingly, in June 2021[i] too there were seven instances when rainfall was above 200 mm, when the rainfall is supposed to be much below July rainfall. As noted in detailed article[ii], the July 2021 rainfall all over India was 6.7% below normal.
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June 2021: District wise rainfall in India’s SW Monsoon
In the just concluded June 2021, the first month of India’s South West 2021 monsoon, India received 182.9 mm rainfall, 10.96% or about 11% more than the normal June rainfall of 166.9 mm as per India Meteorological department. In June 2020, the rainfall was 196.9 mm, or about 18% above normal and in June 2019 it was 33% below normal.
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IMD continues callous reporting of River Wise Rainfall in Monsoon 2020
This rarely gets reported in media, but IMD (India Meteorological Department) also provides river basin wise rainfall figures. Here is an overview of the river basin wise rainfall during SW Monsoon 2020 (June-Sept 2020, though the monsoon withdrew much later), like the way we have been doing for the last three years[i]. Our earlier monsoon 2020 articles provided district wise figures for rainfall in June 2020[ii], June-July 2020[iii], June-Aug 2020[iv] and June Sept 2020[v].
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SANDRP 