Chennai: A deep depression lying 500 km south east of Chennai has intensified into a cyclonic storm and is expected to cross the coast between Nagapattinam in Tamil Nadu and Nellore in Andhra Pradesh on Wednesday, bringing in torrential rains in the region.

The system, named 'Nilam', as suggested by Pakistan under the cyclone naming procedure, would move northwestwards and cross the coast between Nagapattinam and Nellore by Wednesday afternoon/evening.

Under the influence of the storm, rainfall at most places, with isolated heavy to very heavy rainfall, would occur over coastal Tamil Nadu and Puducherry during next 12 hours, an bulletin issued by Area Cyclone Warning Centre here at 1 pm said.

It forecast heavy to very heavy rainfall and isolated extremely heavy rainfall (25 cm or more) in the region during the subsequent 36 hours.

"Squally winds speed reaching 45-55 kmph gusting to 65 kmph would prevail along and off north Tamil Nadu, Puducherry and adjoining south Andhra Pradesh coasts during next 12 hours. The wind speed would gradually increase thereafter as the system comes closer to coast," it said.

Sea will be "very rough to high" and fishermen in Tamil Nadu, Puducherry and adjoining south Andhra Pradesh coasts have been advised to stay off the sea.

Windspeeds can reach upto 90 km in Chennai and there could be some disruption in communication lines, the bulletin said.  Danger signals ranging from five to seven have been hoisted at Chennai, Ennore, Cuddalore, Nagapattinam and Puducherry ports.

In Chennai, normal life was hit by incessant rains since morning. A holiday was declared today for schools and colleges in Chennai and some other districts.

Kollidam in Tamil Nadu recorded the highest rainfall in the state at 15 cm in the last 24 hours ending 8.30 am on Tuesday.

The north-east monsoon which set in over the state on October 19 has been very active and has already brought in copious rainfall in several parts of the state.


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