Heavy Rainfall Alert Issued for Tamil Nadu as Northeast Monsoon Begins
Heavy Rainfall Alert Issued for Tamil Nadu as Northeast Monsoon Begins
IN · Published Nov 8, 2026
• The Regional Meteorological Centre (RMC) has reported the onset of the Northeast Monsoon over Tamil Nadu, with widespread light rain already observed in Chennai and its suburbs on Wednesday, 14 October
• An upper-air cyclonic circulation over the Comorin area, extending up to 1.5 km above mean sea level, along with an easterly trough stretching towards the Northwest Bay of Bengal, is driving the current weather conditions. Heavy to very heavy rainfall is expected in isolated areas across Tamil Nadu, including districts such as the Nilgiris, Coimbatore, Theni, and Virudhunagar. Moderate rainfall with thunderstorms and lightning is anticipated in Chennai and surrounding areas.

Impact & Risks

The heavy rainfall poses risks of waterlogging, localised flooding, and potential disruptions to daily life in affected districts. Thunderstorms and lightning may also pose safety hazards, particularly in open areas. Gusty winds, reaching speeds of 40–50 km/h, could lead to damage to weak structures and trees. Residents in low-lying areas and near water bodies are advised to remain vigilant, as the rainfall may exacerbate existing vulnerabilities.

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