The state of Tamil Nadu has not seen much rains in the past few days. In fact, even Cyclone Phethai which formed in Bay of Bengal, made Andhra Pradesh its target and missed Tamil Nadu completely leaving it dry enough.
In fact, the state has not seen good rains in quite a long time wherein dry weather has been persisting. Only light rain has occurred in isolated pockets. In fact, in the last 24 hours or so, only Coonoor has seen traces of rainfall.
Now, a Cyclonic Circulation has developed over South Central Bay of Bengal and adjoining Indian Ocean. The system is expected to strengthen a little and move westwards. Thus, the state of Tamil Nadu will start receiving rains today itself.
As the system gets close to the coast, i.e. off Sri Lanka and adjoining Tamil Nadu, rainfall activity is expected to increase over Tamil Nadu and adjoining areas tomorrow onward.
In fact, this region is expected to see rainfall activity for the next two to three days, wherein it will be south coastal region of Tamil Nadu which will see rains of moderate intensity while Chennai will have to settle with light rains only. Other parts of Tamil Nadu may also see some rainfall activity but the intensity will not be as high.
Please Note: Any information picked from here must be attributed to skymetweather.com