During Southwest Monsoon, Tamil Nadu normally receives relatively lesser rainfall as compared to the period of Northeast Monsoon which lasts from October to December. But despite less amounts of rain during Southwest Monsoon, the state ended with a surplus of 36% in June this year.
The month of July saw subdued rainfall activity in the region. Only few spells of rain were witnessed and as a result, overall rain percent in comparison to normal fell to 7% by the end of July. Some improvement was observed in the month of August. As on August 27, rainfall over Tamil Nadu stood at 2% below normal, which is closer to the normal, meteorologically speaking.
Now, subdued rainfall activity will continue over the state for the next few days. But isolated spells of rain can occur over northern as well as central parts of the state, adjacent to south-interior Karnataka. At present, a low pressure area exists over west central Bay of Bengal, which will lead to decline in rainfall activity over Tamil Nadu. This is because the winds over the state will be westerly or north-westerly resulting in decline in moisture content.
In the last 24 hours, the state has received scattered rainfall in several parts. Dharmapuri recorded 11 mm of rain, Vellore 4.4 mm, Salem 0.7 mm, Coonoor 0.9 mm, and Chennai 1.5 mm. Temperatures in the region have been under control due to scattered rain spells but mostly humid conditions prevail as and when the sun comes out.
(Featured Image Credit: welykd.wordpress.com)