Mumbai Monsoon Intensifies: Lake Levels Soar Past 82%
Mumbai and its metropolitan regions are bracing for increased rainfall activity this week as the Indian Meteorological Department (IMD) has issued a Yellow Alert. The city's water supply lakes have collectively crossed 82% of their total capacity, providing significant relief from potential water cuts.
MumbaiMonsoonRainfallWater SupplyLakesReal Estate MumbaiJul 21, 2025
The local weather forecast for Mumbai city and its suburbs anticipates generally cloudy skies with moderate spells of rain over the next 48 hours, coupled with the possibility of thunderstorms, lightning, and gusty winds in isolated areas. Temperatures are expected to hover around 30 degrees Celsius for the maximum and 25 degrees Celsius for the minimum. As of July 20 morning, Mumbai has already received 32.70% of its average annual rainfall of 2207 mm. Civic data further indicates that the city area recorded 639 mm rainfall, while the eastern suburbs received 809 mm, and the western suburbs saw 713 mm.
Crucially, due to decent downpour in the catchment areas, the lakes that supply water to Mumbai have collectively crossed 82% of their total capacity, bringing significant relief from potential water cuts this year. The early arrival of the monsoon and consistent heavy rainfall have been instrumental in this development. Water from Upper Vaitarna was released starting July 5, followed by the opening of two gates of Middle Vaitarna on July 7, and the Modak Sagar dam began overflowing on July 9. The Hydraulic Engineering’s Bhandup Complex has recorded a substantial 832 mm rainfall so far this season. The total water stock in the seven lakes now stands at 82.07% of their 14,47,363 mm capacity, with Middle Vaitarna at 93.94% and Modak Sagar nearly full at 99.50%. Tansa stands at 91.43%, Upper Vaitarna at 75.98%, Bhatsa at 77.21%, Tulsi at 52.02%, and Vihar at 52.68%.
Across Mumbai, the substantial increase in lake levels brings significant relief to the city’s water supply concerns for the year. Authorities continue to monitor weather patterns and dam levels closely. Residents are advised to stay updated on advisories as the monsoon intensifies, ensuring safety amid ongoing heavy rainfall and associated weather phenomena.
Frequently Asked Questions
What is a Yellow Alert in the context of weather forecasting?
A Yellow Alert is a weather warning issued by the Indian Meteorological Department (IMD) to indicate the possibility of heavy rainfall, thunderstorms, lightning, and gusty winds. It advises residents to take necessary precautions and stay informed about the weather updates.
How much of its average annual rainfall has Mumbai received by July 20?
By July 20, Mumbai has received 32.70% of its average annual rainfall of 2207 mm.
What is the current water stock in the seven lakes that supply water to Mumbai?
The total water stock in the seven lakes now stands at 82.07% of their 14,47,363 mm capacity.
Which lake has the highest water level currently?
Modak Sagar is nearly full at 99.50% of its capacity.
What precautions should residents take during the monsoon season in Mumbai?
Residents should stay updated on weather advisories, avoid low-lying areas prone to flooding, and take necessary precautions to ensure safety during thunderstorms, lightning, and gusty winds.
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