The Regional Meteorological Centre (RMC) in Chennai has predicted the formation of a low-pressure area over the Bay of Bengal and issued a heavy to very heavy rainfall warning for several districts in Tamil Nadu.&nbsp;
The warning comes as persistent rains lash the Nilgiris and ghat areas of Coimbatore, triggering multiple incidents of tree falls and mudslides that have kept rescue teams on high alert.&nbsp;
According to the RMC, an upper air cyclonic circulation prevailing over the northwest Bay of Bengal is expected to intensify into a low-pressure area by Tuesday.&nbsp;
Forecasters say there is a high likelihood that the system will deepen further and move in a northwesterly direction in the coming days. 
The weather agency attributed the ongoing weather fluctuations to the combined effects of this emerging low-pressure system and a strengthening southwest monsoon. 
As a result, a red alert for heavy to very heavy rainfall has been issued for isolated areas in the Nilgiris and Coimbatore&rsquo;s ghat sections until June 18.&nbsp;
Theni and Tenkasi districts have also been placed on a heavy rainfall watch. Additionally, light to moderate rainfall is expected over isolated locations in Tamil Nadu, Puducherry, and Karaikal through the weekend.&nbsp;
Chennai, however, is likely to see only sporadic rainfall over the next few days.&nbsp;
As the southwest monsoon gains strength and the low-pressure area moves toward southern Gujarat, the city is expected to experience humid conditions with low chances of rain, said independent weather expert K. Srikanth.
&ldquo;The strengthening of western wind flow and a delayed sea breeze indicate that Chennai will likely witness more humidity than rain in the coming days,&rdquo; Srikanth observed. He added that the heavy rains seen in Chennai and surrounding districts last week were due to the weak progress of the southwest monsoon.&nbsp;
Meanwhile, several locations in the Western Ghats recorded substantial rainfall on Monday. 
Avalanche in the Nilgiris received 29 cm of rain, while Chinnakallar in Coimbatore recorded 18 cm.&nbsp;
Other regions, including Upper Bhavani, Pandalur, and Solaiyar, also reported heavy rainfall.&nbsp;
Authorities have urged residents in affected areas to remain cautious and avoid travel through vulnerable routes during peak rainfall hours.
&mdash;IANS
(Except for the headline, this article has&nbsp;not been edited by the Benefit News&nbsp;editorial team and is published directly&nbsp;from the IANS news feed.)

Heavy rains lash Tamil Nadu, alert districts issued

Heavy rain alert in TN; Nilgiris, Coimbatore on red alert due to low-pressure formation

Heavy Rain Alert Issued In Tamil Nadu Districts

Heavy rain alert in TN; Nilgiris, Coimbatore on red alert due to low-pressure formation

June 17, 2025 | 15:18 IST

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