Since the beginning of June, Mumbai has been receiving decent pre-monsoon rains. Between June 1 and 8 Mumbai has recorded 135.3 mm rain against the monthly average of 493.1 mm.
Monsoon has made steady progress over West Coast and reached Alibaug over the Maharashtra coast well before time. Now conditions are becoming favorable for the monsoon to make onset over Mumbai in the next 2 to 3 days. Rain will increase over Mumbai and suburbs by June 12. A cyclonic circulation is persisting over the Northeast Arabian Sea off the South Gujarat coast at around 4.5kms above mean sea level. This cyclonic circulation will gradually shift to the north Maharashtra coast. On the other side of the country, a low-pressure area is going to form over the North Bay of Bengal by June 11. This low-pressure area may intensify into a depression and expected to move in the West-Northwest direction towards east Madhya Pradesh. The combined effect of these two weather systems will enhance the rain for all activities over Konkan and Goa including Mumbai from June 13th. Mumbai may receive heavy to very heavy rain between June 13 and 15, leading to waterlogging and flash floods over many parts.
Heavy rain, waterlogging, and flooding of low-lying areas have now become a common affair for Mumbai during monsoon season. Mumbai may surpass the monthly June average of rain by end of this rain spell.
Skymet wants to alert BMC and the public about this upcoming heavy rain spell. We are keeping a keen watch over the weather systems developing over the Bay of Bengal as well as over the Arabian Sea. We will keep updating you about the latest situation.