RMC set to declare end of Northeast monsoon as rainfall activity wanes over T.N.

With adust upwind expected to proceed implicit the State for the adjacent fewer days, the Regional Meteorological Centre expects the Northeast monsoon to retreat from the portion successful 2 days. 

The monsoon has extended into mid-January connected respective occasions implicit the past 15 years. According to the RMC, Oothu and Nalumukku successful Tirunelveli districts recorded airy rainfall during the past 24 hours ending 8.30 a.m. connected Saturday. None of the upwind stations successful the State recorded immoderate rainfall till Saturday evening.

Officials of the RMC said conditions are turning favourable for cessation of monsoon rainfall implicit the southbound peninsular region, including Tamil Nadu, Puducherry, and Karaikal wrong 2 days. Dry upwind is apt to prevail successful T.N. till January 22. Mild rainfall whitethorn instrumentality to immoderate coastal parts of the State and Puducherry connected January 23. 

The RMC noted that mist/haze whitethorn hap successful the State during aboriginal greeting hours and the nighttime somesthesia is apt to beryllium adjacent mean till January 21. Isolated pockets implicit the higher ranges of Nilgiris and Kodaikanal whitethorn acquisition crushed frost during nighttime oregon aboriginal greeting hours connected Sunday. 

The State has received surplus rainfall truthful acold this January of 25.7 mm against the mean of 9.4 mm. Many districts, including Ariyalur, Dindigul, Erode, Karur, Madurai, and Salem person besides registered excess rainfall truthful acold this month. 

The Northeast monsoon has seen a delayed withdrawal during galore years successful the past 15 years. 2024’s monsoon extended till January 27, 2025. 

R. Pradeep John, who runs a upwind blog ‘Tamil Nadu Weatherman’ said it is communal for the monsoon to spillover to January adjacent twelvemonth during La Nina years. Of late, bedewed spell persisted till Pongal days. A akin inclination has occurred adjacent during immoderate El Nino years. 

Some of the caller years successful which monsoon withdrew aft mid-January were 2020, 2021, 2022, and 2024. The NE monsoon of 2024 was among the astir delayed withdrawals recorded since 1871, helium said.

The RMC has forecast Chennai to acquisition a time somesthesia of 30-31 grade Celsius for 2 days.