Fresh spell of heavy rain approaching Tamilnadu!

Current situation of Chennai 

During the month of November, many areas of Tamil Nadu have received torrential rains. Record breaking rain has been witnessed in many parts of the state. For instance, the capital city, Chennai has broken a century old rainfall record for November.

However, in the last 48 hours, very little rain has occurred over Tamil Nadu, which is a huge relief from the deluge being witnessed by the state. This weather condition can be attributed to the dry north-easterly winds, which are cutting off the moisture incursion from the Bay of Bengal. Also, easterly waves have been weak leading to a significant decrease in rainfall activity and cloud cover.

Almost dry weather conditions will continue for another 48 hours due to which flood waters will recede from various parts of the state. Also, rescue operations will undergo smoothly under dry weather conditions.

Fresh Spell of Rain Expected:

However, on the darker side, a fresh cyclonic circulation, which is over South Andaman Sea will induce a low-pressure area. This system will move in a west-north-west direction towards the Sri Lanka coast.

By 28th evening, heavy rain will commence over the southern parts of Tamil Nadu. The rainfall activity will gradually spread over other coastal areas including the state capital, Chennai and its adjoining areas. By November 29, heavy to very heavy rain is expected over most parts of Coastal Tamil Nadu. During this period, Interior Tamil Nadu will continue to receive light to moderate rainfall activity.

Thereafter, another cyclonic circulation is likely to emerge over the same area but it will move towards the Andhra Coast and give rain over Andhra Pradesh by December 2.

[thanks to skymet]