"The trough of low pressure now lies over Southwest Bay adjoining Sri Lanka off Tamil Nadu", said officials at the Regional Meteorological Center (RMC)
Under its influence, widespread rains are expected across the state tomorrow, with the possibility of 'scattered heavy to isolated very heavy rainfall over coastal districts'.
The weather office forecast 'isolated extremely heavy rainfall' for Chennai, Kancheepuram and Tiruvallur which have been already been facing the brunt of the northeast monsoon since last month.
Puducherry, which was pounded by rains since last night recorded 15.2 cm rain in the last 24 hours ending 0830 today, disrupting normal life. A holiday was declared today for educational institutions.

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