The deep depression, a remnant of Cyclone Ditwah, over the southwest Bay of Bengal has recurved towards the south and moved southeast, inching closer to the East Coast.
This movement has prompted a red alert for four northern Tamil Nadu districts. The India Meteorological Department (IMD) on Tuesday warned of extremely heavy rainfall over Chennai, Kancheepuram, Chengalpattu, and Tiruvallur until 10 am.
Read moreCyclone Ditwah, which weakened into a deep depression over Bay of Bengal on a breezy Sunday evening, surprised residents on Monday by unleashing one of the wettest mornings of the season. The cyclone, stripped of much of its cloud cover on Sunday, moved northward through the Bay of Bengal. It staged a resurgence overnight, amassing moisture. Drifting slowly northward at 5km/h and edging closer to the coast, the weather system thickened cloud cover over city and suburbs, setting off steady prolonged showers from 5am. It dumped torrents over some parts of north Chennai and neighbouring districts Low-lying areas were flooded, children walked to school drenched, and traffic came to a crawl in most parts of the city. Around 10am, when most people were dodging potholes in traffic bottlenecks, India Meteorological Department reinstated an orange (very heavy rain) alert for the city and a red (extremely heavy rain) alert for Tiruvallur.
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