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Cyclone Montha, present located astir 560 km from Chennai, is expected to bring dense rainfall to the bluish parts of Tamil Nadu until it crosses the seashore connected Tuesday (October 28, 2025) evening oregon night.
The Regional Meteorological Centre (RMC), Chennai, has maintained an orangish alert indicating dense to precise dense rainfall up to 20 cm successful Ranipet, Tiruvallur, Kancheepuram, and Chennai districts for 24 hours till 8.30 a.m. connected Tuesday. Villupuram, Chengalpattu, and Puducherry are apt to person dense rains up to 12 cm during the aforesaid period.
In its Nowcast till 1 p.m. connected Monday (October 27), the RMC has predicted mean rains to proceed implicit Chennai and its neighbouring districts, and Villupuram and Ranipet. Coimbatore, Theni, Nilgiris, and Dindigul are besides apt to person airy to mean rains.
The cyclonic storm, which has moved astatine a velocity of 15 kmph during the past six hours, lies implicit southwest and adjoining westcentral and southeast Bay of Bengal, astir 560 km east-southeast of Chennai and 620 km south-southeast of Kakinada (Andhra Pradesh).
The upwind strategy is apt to intensify into a terrible cyclonic tempest by Tuesday greeting and determination further northwestwards and transverse the Andhra Pradesh seashore betwixt Machilipatnam and Kalingapatnam astir Kakinada with a maximum velocity of 90-100 kmph gusting up to 110 kmph.
During the past 24 hours ending 8.30 a.m., immoderate places successful the State received mean rainfall. Korattur successful Chennai and Tiruttani received 5 cm each, the highest magnitude of rainfall recorded successful the State connected the day.
Rains to continue
Scattered rainfall would proceed implicit northbound Tamil Nadu connected Tuesday, peculiarly successful airy of the prevailing cyclonic storm. Intense downpour would proceed implicit Tiruvallur connected Tuesday. A yellowish alert has been issued for 7 districts, including Ranipet, Kancheepuram, and Chennai, connected Tuesday.
Another progressive upwind system, which is stationary implicit the Arabian Sea, is apt to bring rainfall to parts of southbound Tamil Nadu and districts on the Western Ghats till Tuesday. The RMC has warned that beardown aboveground winds of velocity gusting up to 50 kmph volition prevail implicit northbound coastal and adjoining districts of Tamil Nadu, Puducherry, and the Karaikal country connected Monday and Tuesday.
Fishermen person been advised not to task into the oversea arsenic squally winds volition stroke on and disconnected the Tamil Nadu-Puducherry coast, implicit Gulf of Mannar, and the Comorin country till October 30.
In the Chennai region, floodgates of the Red Hills reservoir person been closed owing to a driblet successful the inflow and deficiency of rainfall connected Monday. However, h2o discharge from Poondi reservoir, 1 of Chennai’s large drinking h2o sources, has been gradually stepped up to 7,000 cubic feet per 2nd of h2o connected Monday morning, pursuing dense inflows from cheque dams upstream successful the State arsenic good arsenic Andhra Pradesh.
