IMD sounds alarm over scorching heatwave

The Met Department sounds alarm as Mumbai faces an unseasonal heatwave, with temperatures rising 5 degree Celsius above normal

Our correspondent
Mumbai: Mumbai is set to experience an unusual February heatwave as the India Meteorological Department (IMD) issues a yellow warning for the city and surrounding regions on Tuesday and Wednesday. With temperatures soaring to 38.7 degrees Celsius, nearly 5 degrees above normal.

IMD issues heatwave alert for Mumbai

According to IMD Mumbai, “A yellow warning has been issued for a heatwave in Mumbai and nearby areas for today and tomorrow as the highest temperatures are expected to remain as high as 37-38 degrees Celsius, which is nearly 5 degrees Celsius above normal temperature for the month of February.”

Meteorologists have also predicted a gradual rise in minimum temperatures across Northwest India, with an expected increase of 3-5 degrees Celsius over the next four days, followed by a slight drop. The maximum temperatures in the plains of Northwest India are also expected to rise by two degrees before falling by three to five degrees Celsius.

Meanwhile, no significant changes in maximum temperatures are expected over Central India and Gujarat today, though a gradual rise of 2-3 degrees Celsius is likely in the coming days. Additionally, hot and humid conditions are forecasted to develop in isolated pockets of Konkan, Goa, and coastal Karnataka until February 28.

Mumbai’s water reserves under pressure

With Mumbai experiencing above-normal temperatures for over a week, officials fear that a prolonged heatwave could accelerate the evaporation of water from its lakes, potentially leading to a drop in water reserves.

Mumbai’s seven lakes held 51.12 per cent of their total water capacity as of Monday, a number that could deplete rapidly if high temperatures persist.

A civic official cautioned that the sudden rise in temperature accelerates water evaporation, reducing lake levels. “At present, the city is experiencing extreme day temperatures. Therefore, there is a chance of the reserves dipping faster than expected. Last year, a similar situation forced us to impose water cut in May,” the official stated.

While no immediate water cuts have been announced, officials are closely monitoring the situation. The Brihanmumbai Municipal Corporation’s (BMC) hydraulic department, responsible for water management, has yet to propose restrictions. Notably, every 1 per cent drop in lake levels equates to two to three days of water supply for the city.

According to BMC’s records, Mumbai’s water stock stood at 45.12 per cent on February 24 last year, compared to 50.25 per cent on the same day in 2023. The city sources its water from seven lakes– Tansa, Bhatsa, Tulsi, Vihar, Upper Vaitarna, Middle Vaitarna, and Modak Sagar. While Tulsi and Vihar are within Mumbai, the remaining lakes are located in Palghar, Thane, and Nashik.