Mumbai Weather: City On Yellow Alert As Monsoon Rains Bring Chaos

Rains returned to Mumbai with sharp early-monsoon intensity this week, pushing the India Meteorological Department to issue a yellow warning for Mumbai, Thane and Raigad. The alert came after several parts of the city received heavy rain in a short window, causing waterlogging in familiar low-lying pockets and slowing morning movement in some areas.

The IMD’s nowcast said light to moderate spells were very likely at isolated places in Mumbai, Thane and Raigad. Residents were advised to take precautions, especially while travelling through flood-prone stretches. The warning is not the highest level of alert, but it signals weather that can disrupt local movement, particularly during peak traffic hours.

Mumbai rain delivers a large share of June quota in 24 hours

The sharpest spell came between 8 am on Tuesday and 8 am on Wednesday, when Mumbai recorded continuous rain across several areas. The Colaba observatory measured 248 mm rain during this period, while Santacruz recorded 225 mm. The Santacruz station is widely used as Mumbai’s representative weather station for official readings.

These numbers are significant because they account for a large part of the normal June rainfall. Colaba’s seasonal June average is about 542 mm, while Santacruz’s is around 537 mm. In just 24 hours, Colaba received nearly 45 per cent of its June average and Santacruz received about 42 per cent.

Some neighbourhood-level readings were even higher. Malwani in Malad recorded 340 mm, while Parel received 334 mm. Such localised heavy rainfall often explains why one part of Mumbai may see severe waterlogging while another appears relatively normal. The city’s rain pattern during the monsoon can vary sharply over short distances.

The intensity reduced during the day on Wednesday. According to Brihanmumbai Municipal Corporation figures, the island city received 12 mm rain between 8 am and 4 pm, while the eastern suburbs received 6 mm and the western suburbs 7 mm. This was much lower than the heavy 24-hour spell recorded earlier.

Waterlogging reported in chronic flood-prone locations

Several known waterlogging spots were affected during the heavy rainfall spell. Hindmata in Dadar, Gandhi Market near Matunga and Andheri subway saw flooding on Wednesday morning. Water accumulation was also reported from parts of Malad, Andheri, Ghatkopar, Bandra Kurla Complex and Kandivli.

These areas are vulnerable because of a mix of local drainage limitations, low-lying road levels and high rainfall intensity during short bursts. In Mumbai, even upgraded drainage systems can struggle when hourly rain rates rise sharply, especially if showers coincide with high tide or heavy traffic movement.

The BMC said its emergency response system was operating at full capacity, with more than 7,000 officers and staff deployed across locations. It said dewatering pumps, stormwater pumping stations and flood control systems had been activated, and that accumulated water was draining rapidly from affected pockets.

The civic body also said its disaster management department was monitoring low-lying areas, railway stations, key roads, bridges and coastal zones. Engineers, control room staff and field teams were working round the clock and responding to citizen complaints, according to the statement issued by the BMC.

Monsoon advances across Maharashtra, more rain likely

The IMD said the southwest monsoon had advanced into the remaining parts of Maharashtra by June 24. It also moved into parts of the northeast Arabian Sea, Gujarat and Madhya Pradesh, and additional areas of Chhattisgarh and Jharkhand. Conditions remain favourable for further advancement into more parts of central and northern India.

For western India, the weather department has forecast fairly widespread to widespread rainfall over Konkan and Goa between June 24 and June 30. Madhya Maharashtra is also expected to receive widespread rain on June 24 and again between June 26 and 27. Marathwada is likely to see similar conditions from June 24 to 26.

The IMD has forecast isolated heavy rain over Konkan and Goa during June 25-26 and again from June 28-30. Very heavy rain is likely at isolated places on June 27. Madhya Maharashtra may see heavy rainfall between June 25 and 27, and again on June 30.

Thunderstorms accompanied by lightning are also likely over Konkan and Goa through June 28. Parts of Madhya Maharashtra and Marathwada may witness thunderstorms, gusty winds and thundersqualls, with wind speeds reaching up to 70 kmph during the forecast period.

The rain has also brought a clear drop in temperatures. Colaba recorded a maximum temperature of 26.8 degrees Celsius on Tuesday, while Santacruz reported 29.4 degrees Celsius. This is several degrees lower than the mid-30 degree temperatures seen in the city last week.

For Mumbai residents, the immediate concern remains local flooding during intense spells rather than continuous citywide disruption. Commuters should check weather and traffic updates before travelling through underpasses, low-lying roads and coastal stretches. With the monsoon now active across Maharashtra, short but heavy bursts of rain are likely to remain a recurring challenge.