Cyclone alert: Tamil Nadu to face heavy rainfall till Oct 16

Chennai: The Regional Meteorological Centre (RMC) has predicted heavy to very heavy rains in Tamil Nadu from October 12-sixteen, resulting from a fresh cyclonic circulation at risk of form over the Bay of Bengal on Saturday. On Saturday, western ghats and adjoining districts have probabilities of receiving heavy and intense rainfall, the weather department said.

Heavy rains in TN till Oct sixteen as cyclonic circulation forms over Bay of Bengal

The weather department also said that some delta districts would get very heavy rainfall up to 24.Four cm on Sunday and Monday. RMC added that Chennai, Tiruvallur and Kancheepuram districts too have probabilities of heavy rainfall on Monday.

Two prevailing weather systems contained within the Arabian Sea and the Bay of Bengal have pushed moisture into the region. The RMC has said that most places in Tamil Nadu, Puducherry and Karaikal would experience moderate rainfall (up to 6 cm) till October sixteen.

The weather department also said that few coastal weather stations received rainfall contained within the past 24 hours and seven places registered heavy rainfall. Makkinampatti in Coimbatore district received 12 cm rain, which changed into the highest amount of rainfall recorded contained within the state at some stage within the period. Officials said that the interaction between the weather systems would be monitored for the looks of northeast monsoon.

The southwest monsoon, consistent with RMC, is to retreat completely from states like Uttar Pradesh, Gujarat and Madhya Pradesh in a couple of days for the setting in of northeast monsoon. India Meteorological Department had forecast that the Northeast monsoon changed into at risk of set in around October 17.

The RMC said that a low pressure area over Lakshadweep and adjoining southeast and east-central Arabian Sea, are at risk of gain strength because the depression would enhance easterlies and rainfall over the state.

Most often, the northeast monsoon begins around October 20, but the IMD stated that it truly is common for the monsoon to set in nine days earlier than or after this date. The weather department mentioned that there is regularly a rainfall deficit contained within the southern districts when compared with the northern ones. Nonetheless, the central regions of the state are expected to receive abundant rain.

Additionally, the IMD predicted that the southern peninsular region, including Tamil Nadu, Kerala, and Andhra Pradesh, is at risk of experience above normal rainfall at some stage within the Northeast monsoon. The IMD forecast indicates enhanced rainfall in Tamil Nadu at some stage within the 0.33 and fourth weeks of October.

According to the weather department, Tamil Nadu very often receives a median of forty four cm of rainfall at some stage within the northeast monsoon, which extends from October to the tip of December. The IMD also mentioned the that you're going to control to recall to mind impact of La Niña, a weather phenomenon which can spark off a metamorphosis contained within the pattern of rainfall.

Historically, Tamil Nadu has experienced surplus rainfall sixty nine per cent of the time for the duration of La Niña events, going on 42 times between 1940 and 2021. Through the years 2010, 2016, and 2023, when La Niña took place, there changed into surplus rainfall in 2010 and 2023, but in 2016 the state experienced a rainfall deficit.

The IMD also noted that changing weather dynamics, along with factors such as global warming, are influencing rainfall patterns for the duration of both the southwest and northeast monsoons. The department stated that it has improved its forecasting methods and now achieves eighty five per cent accuracy in its predictions.

Meanwhile, the Tamil Nadu government is preparing for the monsoon with district disaster management authorities working closely with district administrations and other departments, including health, police, and fire and rescue services, to devise for potential inundation and flooding resulting from heavy rains.

Local authorities have been instructed to clean storm water drains and carry out basic road repairs, including covering pits, to forestall water stagnation and clogging.