Due to the strengthening in the easterlies and improvement in synoptic conditions, it is expected to be a wet phase all over tamilnadu for the next week or so. While the coastals may get copious amounts of rain, the interior parts may follow suit with good rain spells. MJO prevailing in the Indian ocean with a good amplitude should aid the monsoon surge.
Rains may be isolated to begin with and then it expected to increase over the remaining course of the week. Chennai and its surroundings may witness heavy spells too. As per popular weather models , the period from Nov 29 to Dec 2 seems to be a broad window of heavy spells over the state.