Heavy rain lashed several parts of Chennai city December 1, 2025 | Photo credit: R. Ragu
The Regional Meteorological Center (RMC) in Chennai on Monday (December 1, 2025) has forecast heavy to very heavy rains in Tiruvallur and Chennai districts till Tuesday (December 2) morning due to a deep depression over southwest Bay of Bengal and adjoining north Tamil Nadu-Puducherry coast.
Heavy rain is likely to occur at isolated places over Ranipet, Kancheepuram and Chengalpattu districts. Since 11 am on Monday, many places in the city of Chennai have witnessed heavy rains leading to inundation of roads and slowing of traffic. Several schools allowed children to leave early because of the constant showers.
According to RMC at 11:30 am, the deep depression, which is the remnant of cyclonic storm Ditwah, has been slowly moving northwards at a speed of 3 km/h during the last six hours and was lying about 50 km east of Chennai, 140 km northeast of Puducherry, 160 km northeast of 17-south-northeast of Cuoudalo-northeast on Wednesday.
Heavy rain resulted in waterlogging on many roads and low-lying areas of Chennai due to the impact of Cyclone Ditwah. A scene of workers pumping rainwater away from railway tracks at Egmore station in the city on December 1, 2025 | Photo credit: B. Jothi Ramalingam
It is very likely to move slowly northwards parallel to north Tamil Nadu and south coastal Andhra Pradesh and will maintain the intensity of a deep depression till Monday evening. After continuing to move slowly north, it is very likely to weaken into a depression over the next 12 hours.
Employees of Greater Chennai Corporation at Vijayaragavapuram in KK Nagar 01 Dec 2025 | Photo credit: B. Velankanni Raj
The system will be centered over the central west and adjoining southwest Bay of Bengal at a minimum distance of 30 km from the Chennai coast this evening.
Published – 01 Dec 2025 18:23 IST
