The IMD has forecast that quantitatively, the monsoon seasonal rainfall for the country as a whole is likely to be 98% of the Long Period Average (LPA) with an error of ± 4%.
The rainfall over the country as a whole for the 2017 southwest monsoon season (June to September) is most likely to be normal (96% to 104% of long period average (LPA)). Quantitatively, monsoon season rainfall for the country as a whole is likely to be 98% of the LPA with a model error of ±4%. Region wise, the season rainfall is likely to be 96% of LPA over North-West India, 100% of LPA over Central India, 99% of LPA over South Peninsula and 96% of LPA over North-East India all with a model error of ± 8 %.
The monthly rainfall over the country as whole is likely to be 96% of its LPA during July and 99% of LPA during August both with a model error of ± 9%. India Meteorological Department (IMD) had issued the first stage operational long range forecasts for the southwest monsoon season (June-September) 2017 rainfall over the country as a whole on April 18. In addition to the update of its April assessment, forecasts for the monthly rainfall for July and August 2017 over the country as a whole, and seasonal rainfall forecast for the 4 broad geographical regions of India (NW India, NE India, Central India and South Peninsula) are also presented.