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Kerala, Tamil Nadu may face severe water crisis soon
Anjali Marar | Monday, 21 November 2016 AT 11:25 PM IST
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States of Kerala and Tamil Nadu are on the brink of severe water crisis ever faced since 2010, as the North-East monsoon has so far remained below normal and subdued over the peninsula.

All hopes of any revival, from an otherwise poor and deficient South-West monsoon, have come down crashing for these southern states which may experience a drought-like situation in the coming months ahead of summer.

The south peninsula, consisting of Tamil Nadu, coastal Andhra Pradesh, Rayalseema, Kerala and south interior Karnataka, receives about 30 per cent of its annual rainfall during the North-East monsoon season which falls during October and December. Additionally, Tamil Nadu receives about 48 per cent of its annual rainfall during this period, making it mostly dependent on this season for its water requirements.

If this rainfall trend continues, the relations between Tamil Nadu and Karnataka who are already at loggerheads with each other on Cauvery river water sharing issue would get further escalated.

The deficient rain, according to meteorologists, is due to delay in onset of La Nina, a phenomenon associated with cooling of the Pacific Ocean, known to aid the Indian monsoon. “ Though La Nina was expected to set in during July-August this year, there is no sign of the same until December end,” said a senior meteorologist at India Meteorological Department (IMD), Pune.

It was in 2010 last when Kozhikode in Kerala had faced similar deficient rains. This year, it has so far remained deficient by 86 per cent rain. Bijapur in Karnataka has received only 14 per cent rain for this season so far and was in a similar situation last in 2011. The moist north-easterly winds, meteorologists explain, have been skirting the eastern coast, thus bringing no rains on the Indian landmass.

Explaining this year’s rainfall trend so far, Pune head of weather forecasting division PK Nandankar said, “The entire south region has been mainly been reporting instances of very light rains, which to was mostly limited to parts of Tamil Nadu. There has also not been much of moisture incursion which could lead to heavy rain.”

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