With monsoons arriving in Kerala late this year, the onset over Maharashtra is also further delayed. The meteorological department has said that the weakening of cyclonic circulation has resulted in the delay of the south-west monsoon in the country.
Although, the Met officials have said that the delay would not impact the overall rainfall, predicting “above normal” rainfall activity this year, the state’s wait for monsoon continues and is expected to end only after June 17. Meanwhile, according to the Met department, Pune and Mumbai will continue to witness premonsoon showers.
“In order to declare the onset, we study parameters such as wind pattern, rainfall and moisture content. In the present situation, we have to wait till June 16 and observe the activity in the state to declare the onset,’’ said Sunita Devi, director weather central, IMD, Pune.
The Met department on Sunday said that the south-west monsoon in the Arabian sea side had weakened while that over the Bay of Bengal had strengthened and had advanced further to north-eastern parts.
“In the Arabian Sea, the cyclonic circulation had weakened the south-west monsoon. The cyclonic circulation is likely to form over the Bay of Bengal around June 16 and that might cause further deepening of the westerlies crossing the western ghats which will see increased rainfall activity in the interior parts of the state including Pune and Mumbai. After this, we can declare the onset,’’ she added.
While in Pune from June 1, there has been 35 mm rainfall registered as pre-monsoon rainfall. The irrigation department officials claim that they are not really affected by the delay and have stock to last till July 15. “The Met department is hopeful of good rains in June itself. Though the onset has been delayed, there would be good rains towards the latter part of the month,’’ said the official.
Presently, four dams which supply water to Pune city —Khadakwasla, Varasgaon and Panshet — have storage below 1 TMC while Temghar has registered zero per cent storage. The total storage has been put at 2.19 TMC as against 2.77 TMC last year.