
Chennai residents and folks across Tamil Nadu, get ready for some rainy days ahead. The Regional Meteorological Centre here predicts widespread showers in the state’s northern districts over the next three days, with isolated heavy downpours and thunderstorms popping up in parts of Tamil Nadu and neighboring Puducherry.
A low-pressure system brewing in the central-west Bay of Bengal kicked off on Tuesday morning and has now strengthened into a well-marked low-pressure area. Weather experts say it will head north-northwest and hit the southern Odisha-northern Andhra Pradesh coast by Thursday.
This system will bring light to moderate rain to many spots in Tamil Nadu, its southern districts, and Puducherry—including the Karaikal area—right through October 7. Keep an eye out for thunderstorms and lightning in some places during that time.
Isolated heavy rain could drench districts like Chengalpattu, Villupuram, Kallakurichi, and Tiruvannamalai. On Thursday, expect even more intense showers in Chengalpattu, Tiruvannamalai, Kanchipuram, Villupuram, Kallakurichi, Ariyalur, Perambalur, Cuddalore, and Puducherry.
Looking further ahead to October 4, very heavy rainfall might strike one or two locations in northern spots such as Chengalpattu, Kanchipuram, Ranipet, Tiruvannamalai, and Villupuram. In the south, Madurai, Sivaganga, Pudukkottai, and Dindigul could see similar downpours.
On the temperature front, maximum highs should ease by 2 to 3 degrees Celsius in several Tamil Nadu areas, Puducherry, and Karaikal over the next three days, thanks to the clouds and rain. But watch for temporary spikes of 2 to 3 degrees above normal in isolated spots.
In Chennai specifically, expect mostly cloudy skies with light to moderate rain or thundershowers at a few places in the next 24 hours. The weather department urges everyone to stay vigilant for sudden heavy bursts—steer clear of flooded or low-lying areas during rains and keep checking updates.
Farmers, plan your work carefully, and fishermen, note that seas could get rough in sections of the Bay of Bengal as this system moves along.
This rainfall ties into Tamil Nadu’s shift toward the northeast monsoon season, where low-pressure setups in the Bay of Bengal often spark heavy showers across the region.
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