The city of Chennai has seen some good rainfall activity in the past few days. However, the last 24 hours remained dry for the city. As far as the month of November is concerned, the normal rains for the Nungambakkam observatory stand at 373.6 mm while the observatory has seen 213.8 mm of rains so far.
On the other hand, Meenambakkam observatory has recorded 246.5 mm of rain so far against 377.3 mm of rainfall.
Now, Chennai rains are expected to be seen both tomorrow and the day after tomorrow, i.e. November 18 and 19. During this time, moderate rains are expected with one odd heavy showers as well. Rainfall will be seen reducing on November 20th. In fact, on November 21, rain will be even less for the city.
These rains are due to a Cyclonic Circulation that is seen off the Tamil Nadu Coast. A trough is also seen from circulation along the coast to the centre of the storm. A convergence is seen over the coastal parts of Tamil Nadu, which will cause rains over the region.