Overview
- The weather office expanded orange alerts to multiple districts including Chennai, Chengalpattu, Kancheepuram, Villupuram, Cuddalore, Ariyalur, Mayiladuthurai, Nagapattinam, Thanjavur, Tiruvarur, Pudukkottai and Ramanathapuram, plus Puducherry and Karaikal.
- District collectors confirmed school closures on Monday for Chennai, Chengalpattu, Tiruvallur and nearby districts following continuous heavy rain and waterlogging.
- IMD expects heavy to very heavy rainfall across parts of Tamil Nadu over the next several days as the low-pressure area and associated upper-air circulation persist.
- Fishermen have been told to avoid the Gulf of Mannar and Kanniyakumari sea areas with squally winds of 35–45 kmph and gusts up to 55 kmph forecast.
- Authorities activated flood-mitigation steps including reservoir monitoring by the PWD and deployment of motor pumps by the Greater Chennai Corporation, with public advisories to limit non-essential travel.