On November 27, light to moderate rain at many places with thunderstorms and lightning at one or two places is likely to occur over Tamil Nadu, Puducherry and Karaikal.

The deep depression over the Bay of Bengal is expected to intensify into Cyclone Fengal, triggering heavy rain across Tamil Nadu and Puducherry. Several districts, including Chennai, witnessed traffic disruptions due to waterlogged streets,

The weather department predicted that the deep depression over the Bay of Bengal would turn into a cyclonic storm on November 27 and is expected to impact parts of Tamil Nadu.

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.

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.

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

Tamil Nadu will get heavy rains due to the cyclone as the RMC has issued heavy rains alert for 18 districts today. The state will witness heavy rains for next three days.

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

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.