Mumbai : “The south-westerly monsoon is due to hit Kerala in the next 24 hours, which is causing localized troughs of depression in coastal Karnataka and Maharashtra, resulting in rainfall and thunderstorms in isolated areas,” said P Ajay Kumar, senior scientist at the Met Department.
“We call them pre-monsoon showers. The monsoon winds should reach Mumbai by the scheduled date of June 10”, he added. According to him, isolated thundershowers will continue over the next 24 hours accompanied by high humidity and cloudy skies.
The Met Department, however, admitted that the much talked about El Nino phenomenon might impact monsoon rainfall in the city and state. “The El Nino phenomenon would indeed have an effect on the rainfall pattern. We have estimated that the phenomenon will cause rainfall to be less than normal, about 95% of the seasonal average measured over the past few decades”, said Kumar.
The onset of the southwest monsoon over Kerala signals its arrival in the country and marks the beginning of the rainy season. The normal date of onset of monsoon over Kerala is June 1. And once the monsoon sets in, it covers the entire country by July 15.