Low-Pressure Area Over Bay of Bengal Intensifies: Rain Alerts Issued for Tamil Nadu and Puducherry
The low-pressure area over the southeast Bay of Bengal and adjoining east Equatorial Indian Ocean has intensified into a well-marked low-pressure area as of Tuesday morning (December 10, 2024). The system now lies over the southwest and southeast Bay of Bengal and is expected to move west-northwestwards towards the Tamil Nadu and Sri Lanka coasts within the next 24 hours, according to the Regional Meteorological Centre, Chennai.
Cyclonic Circulation and Rainfall Predictions
The associated cyclonic circulation extends up to mid-tropospheric levels, indicating the potential for widespread rainfall across Tamil Nadu, Puducherry, and Karaikal regions. A fresh low-pressure system is set to bring intense rain, particularly to northern Tamil Nadu and delta districts, lasting until December 13.
Heavy Rainfall in Delta Districts
- Tuesday (December 10, 2024): Heavy rain is expected in isolated areas of Cuddalore, Mayiladuthurai, Nagapattinam, Thanjavur, and Thiruvarur districts, along with Karaikal.
- Wednesday (December 11, 2024): Many parts of Tamil Nadu, Puducherry, and Karaikal will experience light to moderate rainfall. Thunderstorms with lightning are likely in a few areas.
- Orange Alert: Heavy to very heavy rain is forecast for isolated areas in Cuddalore, Mayiladuthurai, Nagapattinam, Thanjavur, Thiruvarur, and Pudukkottai districts, as well as Karaikal.
- Heavy rain is also predicted for Sivaganga, Ramanathapuram, Tiruchi, Perambalur, Ariyalur, Kallakurichi, Villupuram, Chengalpattu, Kancheepuram, Chennai, Tiruvallur, and Puducherry.
Widespread Rain on Thursday
- Thursday (December 12, 2024): Northern Tamil Nadu, Puducherry, and Karaikal will see light to moderate rain in many areas, accompanied by thunderstorms and lightning in some locations.
- Heavy to very heavy rain is likely in isolated places, particularly in Thanjavur, Sivaganga, Pudukkottai, and Tiruchi districts.
- Other districts, including Nilgiris, Coimbatore, Tiruppur, Kallakurichi, Cuddalore, Ariyalur, Thiruvarur, Nagapattinam, Mayiladuthurai, Villupuram, Chengalpattu, Kancheepuram, Chennai, Tiruvallur, Theni, Madurai, Ramanathapuram, Karur, Perambalur, Thoothukudi, and Dindigul, as well as Puducherry and Karaikal, may also experience heavy rainfall in isolated areas.
Authorities have urged residents in affected regions to stay vigilant, especially in areas under the orange alert. Local administrations are on high alert, ensuring preparedness for potential waterlogging and other rain-related disruptions. Fishermen have been advised against venturing into the sea due to rough conditions.
Stay updated with the latest weather advisories for timely information and safety precautions.
