Teething troubles for Indian monsoon seem to never end, with typhoon ‘Guchol’ in north-west Pacific kicking up a successor storm in upstream South China Sea.
On Monday, tropical depression ‘Talim’ spun up south-west of Hong Kong. It is forecast to track north-northeast as typhoon ‘Guchol’ has done.
HARMFUL IMPACT
All storms travelling in a north-northeast direction in the South China Sea/northwest Pacific can prove harmful for the monsoon, especially after they die out.
The storms would drag the monsoon current across the peninsula for as long as they sustain; but the supply of moisture is cut off after they die out. It will take sometime for the flows to converge and consolidate in the Arabian Sea/Bay of Bengal for the monsoon to revive.
Tropical depression Talim might weaken the flows over Arabian Sea, since they are being mostly guided across the equatorial Indian Ocean and Bay of Bengal.
The European Centre for Medium Range Weather Forecasts indicates a weakening of the flows over the Arabian Sea from as early as Tuesday.
TROUGH WAXING
The offshore trough along India’s west coast has started waxing and waning in strength, before resuming its full length by the evening.
The monsoon reach was unchanged from the alignment linking Veraval, Navsari, Akola, Brahmapuri, Kanker, Keonjargarh, Midnapur and Malda with Gangtok.
The India Meteorological Department (IMD) said conditions are favourable for its further advance into some more parts of Arabian Sea, Gujarat and Chhattisgarh.
Entire Maharashtra, Orissa, West Bengal, Sikkim and some parts of Madhya Pradesh, Jharkhand and Bihar are also expected to cover during the next three days.
‘LOW’ EXPECTED
The IMD also said that a cyclonic circulation is persisting over northwest Bay of Bengal and neighbourhood.
This is expected to settle down as a low-pressure area, which would anchor the flows and drive rains into east India.
But the European Centre for Medium Range Weather Forecasts sceptic on this front; it said it might take until Thursday for this to happen.