IMD predict that Southwest Monsoon 2023 Rainfall to be normal

The monsoon season 2023 rainfall from June to September (Southwest Monsoon) is predicted to be 96% (normal) of the Long Period Average (LPA) with a model error of 5%. The LPA for seasonal rainfall over India for the period 1971-2020 is 87 cm.

  • La Nina conditions have changed to neutral conditions over the equatorial Pacific. The latest Multi-Model Ensemble (MME) coupled forecast system (MMCFS) and other climate model forecasts indicate that El Niño conditions are likely to develop during the monsoon season.
  • Coastal Indian Ocean Dipole (IOD) conditions are currently prevailing over the Indian Ocean, and the latest climate model forecasts indicate that positive IOD conditions are likely to develop during the southwest monsoon season.
  • The snow cover area of Northern hemisphere areas during February and March 2023 was less than normal.
  • Winters and spring snow cover over Northern Hemisphere and Eurasia has a tendency of general inverse relationship with the summer monsoon rainfall.
  • IMD will issue an updated forecast for the monsoon season rainfall in the last week of May 2023.

Question : What is the Long Period Average (LPA) for seasonal rainfall over India for the period 1971-2020 ?
a) 98 cm
b) 92 cm
c) 87 cm
d) 82 cm

Ans : c) 87 cm

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