The IMD has also noted that conditions are favorable for the southwest monsoon to advance over parts of the South Arabian Sea, which may bring more widespread rain across Karnataka.
In response to the yellow alert, BBMP, traffic police, and other civic bodies in Bengaluru have activated emergency plans.
DCP (Traffic-East) Sahil Bagla said that authorities are preparing to handle tree falls and road blockages, while DCP (Traffic-North) Siri Gowri DR confirmed that waterlogging-prone spots have been flagged and shared with BBMP for immediate action.
R. Snehal, Zonal Commissioner (East) at BBMP, added that water-pumping machines will be deployed in vulnerable areas to drain floodwaters and minimize disruption.
Residents are advised to stay indoors, avoid flooded roads, and monitor official updates as Karnataka braces for several days of unsettled weather.
Sunday's deluge
Bengaluru witnessed heavy rainfall and thunderstorms late Saturday night, continuing into Sunday, causing waterlogging in several low-lying areas. According to the IMD, the city recorded approximately 40 mm of rain over 24 hours.
In Sai Layout, one of the hardest-hit neighborhoods, floodwaters inundated homes, damaging household belongings, electronic appliances, and partially submerging vehicles. Many affected residents had to shift to safer locations nearby.
Residents blamed clogged drains for the flooding and expressed frustration over ignored complaints to civic authorities. Additionally, tree branches collapsed in several areas, posing further hazards.
The IMD's Sunday bulletin also forecast light to moderate rain with lightning and gusty winds (30–40 km/h) in isolated locations across the state over the next few hours. It warned of possible power outages, minor traffic snarls, and the uprooting of weak trees.
