From Monday to Thursday total #MumbaiRains will be 200mm. Heaviest rain exceeding 120mm with gusty winds of 40-50 kmph will be from Wednesday Night to Thursday when Arabian Sea System will be closest to Mumbai.

On Monday night most of the heavy Thunderstorms & Rains will be over Thane & Raigad interiors. From Tuesday onwards more widespread rains over Mumbai-Thane-Palghar-Raigad.

From tomorrow Thunderstorms will start popping up overs Ghats from Kolhapur-Fonda to Pune-Lonavala. Rains to increase from Monday in most parts of Maharashtra especially Western Maharashtra. From Monday Rains to increase all along the West coast as famous off shore trough forms.

To new followers this is my personal view. Not official from IMD. The more closer to the date more reliable forecast will get but for now Wednesday Night, Thursday looking like Very Heavy Rains for Mumbai.