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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Indian Meteorological Department · Monsoon

IMD’s 1st Long Range forecast for SW monsoon 2020

IMD’s 1st Long Range Forecast for SW Monsoon 2020 on Apr 15, 2020[i] says:

– Rainfall will be normal (100% of LPA: Long Period Average of 88 cm). IMD says Neutral El Nino Southern Oscillation prevails in Pacific Ocean and Neutral Indian Ocean Dipole conditions prevail in Indian Ocean, likely to remain throughout the monsoon as per most models, some indicate weak La Nina conditions in Pacific Ocean in second half of monsoon.

– FORECAST BASED ON MONSOON MISSION COUPLED FORECASTING MODEL There is high probability (70%) of monsoon rainfall being above average to excess (over 104% of normal)

– FORECAST BASED ON OPERATIONAL STATISTICAL ENSEMBLE FORECASTING SYSTEM: 9% probability of Deficient monsoon (Over 10% below normal); 20% probability of below normal (90-96% of normal) rainfall; 41% probability of normal monsoon (96-104% of normal rains); 21% probability of above normal (104-110% of LPA rains) and 9% probability of excess (over 110% of normal) rains.

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