A fresh cyclonic circulation seen as an upper air system has developed over South Tamil Nadu and adjoining Comorin area.
The system will bring scattered light to moderate Monsoon rain and thundershowers over the coastal areas of the state including Chennai. This rainy spell is likely to continue for at least next 48 hours. Thereafter, intensity of rains will reduce significantly and gradually dry and humid weather condition will make a comeback over the city.
Chennai has been witnessing mainly scattered light rains for the last few days, with last 24 hours recording 2.7 mm of rain. So far, the city has recorded 36.4 mm of rain against the monthly average rainfall of 140.3 mm.
As reiterated by Skymet Weather, Chennai does not record a lot of rains during the four-month long Southwest Monsoon season. Chennai along with the entire state of Tamil Nadu record its major rainfall during the Northeast Monsoon that spans from October till December.
At present, the cumulative rainfall deficiency for Tamil Nadu stands at 3% which is almost normal.
Image credit: en.wikipedia.org
Any information taken from here should be attributed to skymetweather.com