- Weather office warns city will receive "really heavy rains"
- Southwest monsoon has hit the mainland ahead of normal schedule
- "Warnings should be issued now. Just stay indoors," tweeted Skymet
It has been raining intermittently in the city since Saturday but after the start of the monsoon, the rain is likely to become heavier over the weekend till next Monday.
"Extremely heavy rainfall" is expected in parts of Mumbai, the met office has warned.
"Sustained heavy raining coming for a week starting on the 6th of June. (June) 8/9/10 can be extremely heavy. Warnings should be issued now. Just stay indoors," Skymet CEO Jatin Singh said on Twitter.
According to Skymet, a "cyclonic circulation" is forming over Konkan and Goa and it will gradually move north along the Maharashtra coast.
The rain, which struck the financial capital along with thunder and lightning, affected trains and flights, caused massive traffic jams and left some neighbourhoods without electricity.
Each year, the season portends a nightmare for the citizens of Mumbai, since rain floods the city and chokes up major roads.
The southwest monsoon hit the country's south tip ahead of schedule this year and reached Kerala on May 29 instead of the usual June 1.
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