A low-pressure area over the southwest Arabian Sea has intensified into a well-marked low-pressure area on Monday. Due to the convergence of strong northeasterly monsoon winds with the system over the Arabian Sea, the ongoing heavy rain spell over Tamil Nadu is likely to continue during the next two days.
The active phase of Madden–Julian Oscillation (MJO) has also enhanced the rainfall activity over southern India since last week. The IMD forecasts very heavy rainfall at isolated places over Tamil Nadu, Puducherry and Karaikal on Monday and heavy rains at remote areas on Tuesday. Orange alerts are in place in as many as 15 districts across Tamil Nadu, including Chennai, for Monday.
On Saturday, a whopping 190 mm rainfall was recorded at Satankulam in Toothukudi district. 17 people, including two children, were killed due to a house collapse incident in Coimbatore district
Torrential downpour swept Chennai and other parts of Tamil Nadu over the weekend with many areas receiving over 150 mm within 24 hours. The state government has ordered the closure of schools in eight districts viz. Chennai, Tiruvallur, Thoothukudi, Cuddalore, Chengalpattu, Ramanathapuram, Kancheepuram and Ranipet on Monday due to the rains.
Authorities have closed schools and colleges in Tiruvallur, Thoothukudi and Ramanathapuram districts today. Holiday has also been declared for schools in Chengalpattu, Kancheepuram, Cuddalore and Chennai.
At least 17 people, including two children, were reportedly killed due to a house collapse incident in Nadur village in Coimbatore district during the early hours of Monday. According to the police, at around 5.30 a.m., the 20-foot wall fell on four houses, resulting in their collapse and killing the victims while they were asleep. Condoling the deaths, Chief Minister K. Palaniswami announced financial assistance of Rs 4 lakhs each to the victims’ families.
In Tirunelveli district, an 81-year-old man died due to a wall collapse on Sunday. Another 49-year-old man died at Ambattur in Chennai as he accidentally fell into a stormwater drain. Another death was reported in Thanjavur on Saturday. Very heavy rains continue to lash Tamil Nadu district since Thursday, and the intensity of rains increased during the weekend.
As per the India Meteorological Department (IMD), the 24-hour rainfall accumulation till Monday morning was a maximum of 180 mm at Mettupalayam, followed by 134 mm in Coonoor. On Saturday, a whopping 190 mm rainfall was recorded at Satankulam in Toothukudi district. Cuddalore, Tuticorin and Kurinchipadi also received around 170 mm.
Districtwise, rainfall was maximum in Cuddalore district with an average of 102.2 mm, followed by Nagapattinam and Kancheepuram with more than 90 mm on Saturday.