The Indian Meteorological Department (IMD) has issued an Orange Alert for Chennai and several nearby districts, predicting heavy to very heavy rainfall over the next two days. The forecast, valid for December 17 and 18, stems from a low-pressure system forming in the South Bay of Bengal, which is expected to impact Tamil Nadu's coastal regions.

Low-Pressure System Developing Over Bay of Bengal

According to the IMD, a low-pressure area has formed in the central parts of the South Bay of Bengal due to an atmospheric circulation. This system is likely to strengthen and move in a west-northwesterly direction, bringing sustained heavy rainfall to Chennai and neighboring districts.

Orange Alert Issued for Tamil Nadu Districts

The IMD has placed the following districts under an Orange Alert for very heavy rainfall:

Chengalpattu

Villupuram

Cuddalore

Mayiladuthurai

Puducherry

These regions are likely to receive rainfall between 12 cm and 20 cm, raising concerns of flooding, waterlogging, and disruptions.

Chennai Rainfall Forecast: What to Expect

Chennai and its surrounding districts, including Kanchipuram and Tiruvallur, are also set to experience significant rainfall. Here's the detailed timeline:

December 17: Light rain is expected to begin by early afternoon, gradually intensifying through the evening.

December 18: The IMD predicts very heavy rain across Chennai, Kanchipuram, Chengalpattu, and Tiruvallur.

December 19: Rainfall will continue in Chennai, though its intensity is expected to reduce slightly.

December 20: Residual showers will persist across parts of Tamil Nadu, including Chennai.

Heavy Rain Warnings for More Districts

In addition to Chennai, heavy rainfall warnings have been extended to:

Nagapattinam

Karaikal

Ranipet

Tiruvannamalai

Kallakurichi

Vellore

Ariyalur

These regions could experience heavy showers that may impact daily activities and transport services.

Precautions for Residents

Local authorities have urged residents in low-lying and flood-prone areas to remain cautious and follow safety advisories. Key precautionary measures include:

Avoiding unnecessary travel during heavy rainfall.

Staying indoors and securing important belongings.

Monitoring official weather updates and alerts for any emergency.

State Preparations Underway

Emergency teams are on high alert across Tamil Nadu to manage potential disruptions. The state administration is closely monitoring the weather situation and ensuring necessary measures are in place to assist affected areas.