The Hindu Business Line : Wet cover blanks central India

Thiruvananthapuram, July 25 All major growing regions except in central India and interior peninsula have been or are receiving widespread to fairly widespread rainfall, thanks to fortuitous intervention by varying weather systems.

In another words, the weak monsoon phase applies at best to central India and the peninsular interior that lie beyond the soothing influence of these systems driving rain currently from the fringes of the landmass.

But even these very regions could now look forward hopefully to the Bay of Bengal, which model predictions suggest would spring back to life around August 3 ending the 10-day lull in rains.

MAY DESCEND

According to preliminary assessment, the skies over the west-central Bay could throw out an upper air cyclonic circulation with prospects of descending to lower levels, prior to setting up a monsoon ‘low.’

But the last word has not been said yet, and meteorologists say this circulation would bear watching for a couple of days at least before firming up a definite conclusion.

But favourable signals are already available, as per projections by the European Centre for Medium-range Weather Forecasts.

Concurrent updates and short- and medium-range outlook by India Meteorological Department (IMD) elucidate how parts of northwest India, entire east and northeast India, the west/southwest and south-eastern coasts are all receiving widespread to fairly widespread rainfall.

MONSOON TROUGH

The axis of monsoon trough lies close to foothills of Himalayas and features an embedded circulation at its south-eastern tip. This is triggering fairly widespread rainfall activity with isolated heavy to very heavy fall over the Gangetic plains and the North-eastern States for another five days.

Eastern Uttar Pradesh, Bihar, Orissa, West Bengal and the North-eastern States expect to benefit in this manner.

Some of these were among the few that propped up rainfall deficits as per an IMD update on July 18.

Northwest India is likely to experience scattered to fairly widespread rainfall activity during the same period under the influence of a massive westerly trough extending from Jammu and Kashmir west-southward into northeast Arabian Sea.

Jammu and Kashmir, Himachal Pradesh, Uttarakhand, Punjab, Haryana, Delhi and west Uttar Pradesh are likely to receive rainfall of varying intensity.

The trough has started moving to the east, which will expectedly bring more areas under its footprint.

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