Bengaluru: The India Meteorological Department (IMD) has issued a yellow alert for 23 districts in Karnataka, including Bengaluru, forecasting moderate to heavy rainfall, thunderstorms with lightning, and gusty winds reaching speeds of 50–60 kmph until May 22, 2025.
The expected rainfall is attributed to a surface cyclonic circulation over the Bay of Bengal, which is driving moisture and instability into the region. Additionally, a trough line extending from Telangana to Tamil Nadu is increasing wind activity and humidity, further contributing to the unsettled weather.
Districts under yellow alert
The yellow alert has been issued for the following districts: Bengaluru Urban, Bengaluru Rural, Kolar, Chikkaballapur, Tumkur, Mandya, Mysore, Hassan, Kodagu, Belagavi, Bidar, Raichur, Yadgir, Davangere, and Chitradurga.
Precautionary measures in Bengaluru
In response to the alert, the Bruhat Bengaluru Mahanagara Palike (BBMP) and Bangalore Traffic Police have activated emergency protocols:
Recent rainfall impact
On May 18, Bengaluru recorded its highest rainfall of the year at 104 mm in 24 hours. The downpour caused severe waterlogging in several areas, notably near Manyata Tech Park, leading to significant traffic disruptions. BBMP officials visited the site and initiated discussions for a new drainage plan to address the issue.
Early monsoon arrival expected
The IMD has indicated that a developing weather system in the South Arabian Sea may lead to an early onset of the southwest monsoon, potentially reaching Karnataka by the end of May. Many areas are also likely to witness above-average rainfall this monsoon season.
Advisory for the public
The IMD and local authorities have issued the following safety guidelines: