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Tamil Nadu and coastal Andhra Pradesh are likely to receive above normal rainfall for the next three days (until Wednesday), according to the Indian Institute of Tropical Meteorology.
The outlook assumes relevance in the context of the India Met Department having put the Bay of Bengal back again under watch for a low-pressure area likely to form by tomorrow.
The Met has forecast heavy to very heavy rainfall for coastal Tamil Nadu, Puducherry, coastal Andhra Pradesh, Rayalaseema, south interior Karnataka, interior Tamil Nadu and Kerala until Thursday. An extended outlook by the Indian Institute of Tropical Meteorology suggested that the Tamil Nadu and Andhra Pradesh coasts would receive normal rainfall over 10 to 15 days until mid-December.
Heavy rainfall occurred at isolated places over Tamil Nadu and Andaman and Nicobar Islands during the day on Sunday.
Fresh low alert Meanwhile, the fresh ‘low’ alert comes after the Met had withdrawn a watch for it over the South Andaman Sea and adjoining Andaman and Nicobar Islands a couple of days earlier.
This in retrospect may have offered a reprieve for Tamil Nadu and Puducherry from a likely heavy to very rain regime that would have enveloped the region from two days ago.
This reprieve will not anymore hold.
Already, rain or thundershowers have been reported at a number of places along the Tamil Nadu coast during the day on Sunday.
Dense fog in North What serves to amplify the emerging rainy weather is the presence of a trough (not amounting to a ‘low’) within close range over South-West Bay of Bengal, off the Sri Lanka coast.
Meanwhile, in North and North-West India, the mild fog experienced over the past few days have now graduated to dense fog conditions.
The critical period that the region should negotiate warily is from mid-December to mid-January when dense fog brings to a standstill the traffic on ground as well as above in Delhi and neighbourhood.
An India Met Department update said that dense fog hung over Delhi and Haryana on Sunday morning, while moderate fog was on show over Punjab, West Uttar Pradesh and Himachal Pradesh in the North-West and Gangetic West Bengal, Manipur and North Odisha in the East and North-East.
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