In the 24 hours from Monday morning to Tuesday morning,the city received an unprecedented 185.3 mm of rain,making it the second highest rainfall day in September in 10 years. The highest was 223.3 mm in September 2005.
Between 8.30 am on Monday and 8.30 am on Tuesday,the Santacruz weather station received 95.2 mm and Colaba received 90.1 mm. This rainfall also brought down the seasonal rain deficit in the suburbs by nine per cent. The deficit in the suburbs from June 1 till Monday morning was 30 per cent but reduced to 21 per cent by Tuesday morning. In island city,the deficit reduced from 40 per cent to 36 per cent.
The city remained relatively dry on Tuesday. The Met department attributed this to a weather system moving away. On Monday,there was a vortex over Dahanu and adjoining parts of Gujarat,which led to the heavy rainfall in the city. However,that system is now over the sea, said S Sudevan,director,India Meteorological Department (IMD). Weathermen are expecting occasional spells of rainfall on Wednesday.