It goes without saying for tropical areas like the plains of Tamil Nadu winter season is an understatement. Proximity to the Equator in addition to oceans on all three sides of Peninsular India modulate our temperatures. It is also essential to point out during La Nina years the winter is pretty much non existent. The…
NEM 2024 officially checks out of Peninsular India
Yesterday IMD officially announced the cessation of Northeast Monsoon over Peninsular India. In a way NEM 2024 ends up as another classic La Nina influenced monsoon. As with La Nina when the pendulum swings either way the season ended up as excess. Since 1950 out of the 25 years when Monsoon has withdrawn on or…
Northeast Monsoon heads for wind down
According to IMD the Northeast Monsoon season starts on 1st October and ends on 31st December. As we mention often, this is for statistical convenience rather than a reflection of the actual season. The mean onset date for Northeast Monsoon season according to this study by Dr YEA Raj and Dr B Geetha is 18th…
Extended NEM to bring one active rainfall episode to South TN
The statistical NEM season according to IMD is between 1st October and 31st December. This has been done with maintaining long term rainfall data in mind. A rigid season allows better comparison of long term rainfall data and trends. But this does not take into actual onset and withdrawal of monsoons. Similar is the case…
Pongal festivities in TN likely to be impacted by Rains
It may be ironical to talk about Rains when Pongal festival is just around the corner. Before we start calling it “Unseasonal Rains” it is essential to look at the background. When La Nina influence drives the weather dynamics. Of the 5 disturbances that formed after Christmas since 1950 3 of them were when La…