A significant rise in water storage levels across Mumbai’s seven primary lakes has been observed following consistent monsoon rainfall, according to data released by the Brihanmumbai Municipal Corporation (BMC). As of the latest update, a total stock of 8,62,100 million litres—representing 59.56% of the seasonal requirement—has been reported.
A sharp increase of 3.4 metres within a span of 24 hours was recorded at Middle Vaitarna Lake, which has now reached 71.60% of its total capacity. Other major reservoirs such as Upper Vaitarna and Modak Sagar have also seen strong inflows, standing at 71.50% and 75.46% respectively. Tansa has filled to 60.43%, while Bhatsa, a key contributor to the city’s water supply, is currently at 50.19%.
Vehar and Tulsi, the smaller lakes that form part of the city’s water system, were reported to be at 45.62% and 44.43% of their respective capacities. Rainfall activity in the past 24 hours has played a crucial role in improving the water situation. Middle Vaitarna received 112 mm of rain, while Tansa and Modak Sagar received 107 mm and 78 mm, respectively. The Bhandup Complex logged 30 mm of rainfall today and an overall seasonal total of 630 mm.
Meanwhile, the India Meteorological Department (IMD) has issued a yellow alert for Mumbai, warning of moderate to heavy rain with gusty winds between 45–55 km/h. Tidal data for July 6 indicated a high tide of 3.33 metres at 7:18 PM, while a low tide of 2.55 metres occurred at 1:59 PM. These tidal fluctuations, coupled with ongoing rainfall, are likely to affect drainage in vulnerable areas. Concerns regarding waterlogging have been raised, particularly in locations such as Hindmata, Sion, Parel, Andheri Subway, and Dadar. The IMD has advised residents to remain alert and prepared, especially those in flood-prone zone.
Humidity levels were reported to range between 80–85%, with temperatures oscillating between 25°C and 32°C. Winds from the west and southwest were expected to continue at speeds of 20–30 km/h, occasionally gusting higher. Thane district has been placed under an orange alert, suggesting the possibility of heavier showers. Officials have confirmed that active monitoring of rainfall, lake levels, and tide conditions is being carried out to manage urban flooding and ensure the city’s water needs are met efficiently.