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IMD predicts normal monsoon

Press Trust of India  |  New Delhi 

is likely to witness a normal monsoon this year, the Meteorological Department said today.

The monsoon will be 97 per cent of long period average (LPA), which is normal for the season, IMD K G told reporters.

The error margin in the forecast is plus/minus 5 per cent.

He said there was "very less probability" of a deficient monsoon.

The four-month monsoon season from June to September provides about 75 per cent of the annual rainfall to the country, where GDP is still largely driven by the agriculture sector. Several parts of are witnessing agriculture distress and a good rainfall is likely to provide some relief.

"The forecast also suggests maximum probability for normal monsoon and low probability for deficient rainfall," said.

There are 14 per cent chance of a deficient rainfall and 30 per cent chance of a below normal precipitation.

The chance for a normal rainfall is 42 per cent, 12 per cent for above normal rainfall and 2 per cent chance for excess precipitation.

D S Pai, a with the IMD, said the La Nina condition is weakening and is highly likely to enter a neutral phase.

The Dipole (IOD) is negative, but even that is reducing, said. "Neutral La Nina is not detrimental for the Monsoon," Ramesh said.

La Nina is associated with cooling of the equatorial Pacific waters, while El Nino is associated with the warming of these waters.

A positive IOD is associated with cooling of the equatorial waters of the and a negative IOD is associated with the warming of these waters.

These phenomena are one of the factors that impact the monsoon.

The date of onset of monsoon will be announced in the middle of May. Ramesh said it will also release the area wise distribution of rainfall by May end or early June.

Private forecasting agency recently said that there was only 20 per cent chance of above normal monsoon rains, 20 per cent chance of below normal rains and zero per cent chance of a drought.

June would record excess rainfall, July is likely to be normal and August below normal, it had added.

Rainfall activity will pick up again in September, had said.

The monsoon is considered normal if the average rainfall is between 96 to 104 per cent of long period average. Anything less than 90 per cent of LPA is termed a 'deficient' monsoon, and 90-96 per cent of the same is considered 'below normal'.

(This story has not been edited by Business Standard staff and is auto-generated from a syndicated feed.)

First Published: Mon, April 16 2018. 18:45 IST
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