Powerful Pacific typhoon Haiyan made a calamitous landfall over the Philippines and later barrelled into Vietnam across the South China Sea on an eventful day on Sunday.
The killer storm seemed to have cast a decisive spell on neighbouring Bay of Bengal too as an existing low-pressure area struggled to hold itself together.
FAILS TO INTENSIFY
Contrary to expectation, the ‘low’ did not undergo a round of intensification on Saturday. India Met Department expects it would so only by Monday.
All indications continue to suggest that the system would take the whole of this week to wind its way towards the Tamil Nadu/Sri Lanka coast.
The European Centre for Medium-Range Weather Forecasts says the system will crawl over the coast in a spurt of rainfall around Chennai-Puducherry belt by Saturday.
Significantly, the European agency expected the system to intensify one more round just ahead of the landfall.
This should help it push in the rains to interior Tamil Nadu. Neighbouring Kerala will have already received some showers from a rain wave emerging from seas south of Sri Lanka.
In its forecast, the Met Department said thundershowers would break out over extreme south peninsular India from Thursday. The rain may scale up later over coastal and south Andhra Pradesh and Tamil Nadu.
Climate Prediction Centre of the US National Weather Services is of the view that southern Indian peninsula will make limited gains from the system. Some rain will get directed north-east towards Andhra Pradesh and Odisha coasts under influence of concurrent western disturbances moving across northwest and east India.
COLDER IN NORTH
In the North, minimum temperatures ranged from 10-15 deg Celsius over plains of North-West, adjoining central and east India.
The lowest minimum in the plains of 7.5 deg Celsius was reported at Najibabad in west Uttar Pradesh.
Fog to shallow fog was observed over isolated pockets of Punjab, Haryana, Delhi, Uttar Pradesh, Manipur and Tripura overnight on Sunday.
The Met Department said that fog to shallow fog conditions would prevail over some parts of Gangetic plains during morning hours of next three days.