Rains lashed several parts of Tamil Nadu on Tuesday, and the India Meteorological Department said the depression over Bay of Bengal has formed into a deep depression and it is likely to intensify into a cyclonic storm on November 27.

A deep depression in the Bay of Bengal is intensifying and expected to become a cyclonic storm, named Fengal, by November 27. It's currently southeast

The India Meteorological Department has issued a red alert for rain for Mayiladuthurai, Nagapattinam and Thiruvarur districts in Tamil Nadu and Karaikal in Puducherry.

The deep depression is set to bring significant rainfall to coastal districts like Nagai, Karaikal, Thanjavur, Mayiladuthurai, and Ramanathapuram. These areas are likely to bear the brunt of the weather system. The storm’s proximity is expected to bring intense rainfall to the Delta region, which could result in localized flooding and waterlogging.

The system is expected to develop into a cyclonic storm within 24 hours, with potential landfall along Tamil Nadu's coast by the end of the week.

Heavy to extremely heavy rainfall is forecast over Tamil Nadu, Puducherry, and Andhra Pradesh between November 27 and 29. Strong winds, ranging between 45-55 km/h with gusts up to 65 km/h, are likely along the affected coasts. Additionally, rough seas may lead to flooding in low-lying areas and disrupt marine activities.

IMD has issued a red alert for Nagapattinam, Thiruvarur and Mayiladuthurai districts and the Karaikal area on November 26, with the possibility of extremely heavy rainfall in many places across these four districts. On November 27, Mayiladuthurai, Cuddalore and the Karaikal area have been issued a red alert.

With the deep depression in the Bay of Bengal expected to transition into Cyclone Fengal and hit the Tamil Nadu coast on Wednesday (Nov. 27), the Tamil Nadu government is fully geared to face the situation,

Tamil Nadu CM MK Stalin leads a high-level review meeting as Cyclone Fengal approaches.Relief efforts and safety measures are in place to protect the Cauvery Delta region.

Heavy rainfall led to waterlogging in various parts of Chennai city on November 26. Streets and roads were flooded with muddy water following heavy rainfall. India Meteorological Department (IMD) issued a yellow alert for heavy rainfall in Chennai from November 27 to 29.