Red alert in Mumbai as monsoon deluge floods the city

Mumbai is bracing for more heavy rainfall as India’s weather agency has issued its highest alert for the financial hub, warning of intense rain spells and wind gusts up to 65 km/h (40 mph). The red alert comes after a deluge that has already delayed flights, disrupted train services, and forced schools and colleges to close.

The India Meteorological Department (IMD) reported that the Santacruz weather station on Mumbai’s western side recorded 238.2 millimetres (9.4 inches) of rain in just 24 hours ending Tuesday morning, marking the highest single-day rainfall for August since 2020. Roads across the city have been flooded, causing traffic snarls and stranding commuters.

Mumbai’s vulnerability to flooding is well-known due to its coastal location, dense population, and ageing urban infrastructure. Past events, such as the devastating 2005 floods that claimed more than 400 lives, highlight how quickly transport, residential, and financial hubs can grind to a halt when drainage systems are overwhelmed. Airline IndiGo reported “operational challenges” on X, with delays in both departures and arrivals. Government offices, schools, and colleges have been ordered closed, and citizens are advised to avoid unnecessary travel.

Mumbai is home to India’s central bank, major stock exchanges, and head offices of leading corporates such as Reliance Industries and Tata Group. The ongoing monsoon season has already caused deadly floods across parts of India and Pakistan, with southern China and Hong Kong also experiencing repeated heavy rains in August. Authorities are urging residents to remain cautious, avoid low-lying areas, and stay updated with IMD advisories as the city continues to battle torrential rains.