North coastal districts and delta districts will see an increase in rainfall till Wednesday. Interior districts, however, may get isolated spells of showers.
Friday’s low pressure area persists over southwest Bay of Bengal and its neighbourhood, with associated cyclonic circulation.
S. Balachandran, Director, Area Cyclone Warning Centre, said the weather system was spread over a large area and variability will be more. The rainfall belt extends up to south Andhra Pradesh.
“We expect heavy to very heavy rainfall of up to 24 cm in one or two places over north coastal Tamil Nadu and Puducherry till Tuesday. We are monitoring the system and rainfall activity will depend on whether the present system weakens or sustains after Tuesday,” he said.
The Meteorological Department has indicated that a fresh low pressure area is likely to form over southeast Bay of Bengal and its neighbourhood around November 14. Officials said the models were being monitored for development.
The department has forecast that Chennai may have a few spells of light to moderate rains in some areas on Sunday.
The storage in the city reservoirs too is steadily going up but at a slow pace.
As on Saturday, the combined storage in the reservoirs was 4,129 million cubic feet, which was 37 % of their total capacity.
Measures sought
Meanwhile, G.K. Vasan, president, Tamil Manila Congress, has demanded that the State government take precautionary measures to tackle the impact of monsoon based on the India Meteorological Department’s warnings.
During the past 24 hours ending 8.30 a.m. on Saturday, Vedaranyam in Nagapattinam district registered the highest volume of 13 cm of rainfall.
In the periphery of the city, Mamallapuram received the maximum at 5 cm, followed by Kelambakkam with 2 cm of rainfall.
