The Hindu Business Line : South likely to have more wet spell

MONDAY'S upper air cyclonic circulation over south-central Bay of Bengal has now shifted a little to the south-west, with prospects of getting further organised even as it tracked a north-westerly course.

This is tipped to bring fairly widespread rainfall over coastal Andhra Pradesh, Tamil Nadu and Pondicherry and scattered to fairly widespread rain in the remaining areas of South peninsular India during the next three-four days.

Speaking to Business Line, Dr Akhilesh Gupta of the National Centre for Medium Range Weather Forecasting (NCMRWF), said the system is being influenced by conditions that should hopefully aid its intensification into a `low'. The system is mature enough that even without being a `low', the contents are ready to pour over the areas under its footprint.

With its northward slope, the North-East monsoon systems are known to cause maximum rain/wind activity to areas north of the centre. Therefore, in the instant case, coastal Andhra Pradesh will come in for much heavier rain than Tamil Nadu to the immediate south, Dr Gupta said.

Monday's upper air cyclonic circulation over east Madhya Pradesh and adjoining Vidarbha is now positioned over east Madhya Pradesh proper. The NCMRWF has maintained a watch for this being accosted by a western disturbance travelling to the east of the country. Due to the possible interaction of the two systems, a northeast-southwest oriented rain belt is expected to persist for the next two-three days.

Under this scenario, rainfall activity will cover an entire swathe of geography extending from the Northeastern States to the west and further southwest into West Bengal, Jharkhand, Bihar, parts of east Uttar Pradesh, Orissa, Chhattisgarh, east Madhya Pradesh and even covering the four States of the southern peninsula.

Meanwhile, Monday's well marked `low' over east-central Arabian Sea has persisted but weakened into a conventional `low'.

An NCMRWF update said the southern peninsular India - Tamil Nadu, Andhra Pradesh, Karnataka and parts of Kerala - has been receiving scattered to fairly widespread rain with light to moderate showers during the 24 hours ended Tuesday morning.

East Madhya Pradesh, Chhattisgarh, Vidarbha, Orissa, Jharkhand and the Northeastern had also come in for scattered rain.

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