Updated on December 30, 12:00 PM:
Yesterday's low-pressure area has further weakened into a cyclonic circulation that at present lies over Southwest Bay of Bengal off Tamil Nadu coast. From this system, an upper air trough is also extending up to West-central Bay of Bengal off South Odisha coast.
Due to this system, clouding is expected to increase along the eastern coast of the country. Hence, light rains are expected at a few places along the eastern coast of the country that includes the states such as Andhra Pradesh and Odisha also including Chennai during the next 48 hours.
In the last 24 hours from 08:30 am as on Friday also, parts of the group of Islands received light to moderate rains. Nan Cowry and Hut Bay recorded 16 mm of rains each, Car Nicobar 8 mm and Port Blair recorded rainy traces.
Though, these rains are expected to be very light and highly localized in Chennai city.
Updated on December 29, 05:42 PM:
The low-pressure area continues to track in South Andaman Sea, giving moderate to heavy rains and thundershowers over Andaman and Nicobar Islands. In the span of 24 hours from 8:30 am on Thursday, Maya Bandar recorded whopping 62 mm of rain, followed by Port Blair 15 mm and Hut Bay 13 mm.
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According to Skymet Weather, the low-pressure area would continue to give moderate rain with one or two heavy spells over the group of islands during the next 48 hours.
In wake of this, sea conditions may become rough during the next 2-3 days. Rains may hamper the travel plans for the tourists thronging to Andaman and Nicobar Islands during the next two days. October to December is considered to be a favourable time for traveling to these islands.
The system would not have a direct impact over East Coast of the country in terms of rains but sky may become partly cloudy to cloudy over coastal parts of Tamil Nadu, Andhra Pradesh, Odisha and Gangetic West Bengal December 31 onwards.
Click the image below to see the live lightning and thunderstorm across India
It would escape Chennai and Kolkata completely and weather would remain absolutely dry in the coming days.
Further, weathermen predict that the system would gradually move in a northwest direction towards Central Bay of Bengal. From here, it is expected to move in north-northeast direction towards Bangladesh and Northeast India.
However, the system would start losing strength January 1 onwards but it would be capable enough of giving few good spells over Bangladesh.
Light to moderate rains are also likely over Nagaland, Manipur, Mizoram, and Tripura between January 2-3. By January 4, the system is most likely to dissipate completely and weather would go dry.
IMAGE CREDIT:
Any information taken from here should be credited to skymetweather.com