Tamil Nadu has issued an orange alert for Tiruvallur as the Murasu storm over the Bay of Bengal is expected to bring extremely heavy rainfall, while five districts are likely to receive heavy rain, according to a report by Dinamalar citing the weather centre.
The report said the storm is centred over the south-western and west-central Bay of Bengal. It is forecast to cross the coast between Nellore and Narsapur in the early hours of November 3.
Tiruvallur was placed under an orange alert for November 1 because of the possibility of extremely heavy rainfall. An orange alert indicates the need for heightened preparedness in areas that could face intense rain and related disruption.
The report also said that districts in Tamil Nadu were expected to receive heavy rainfall, classified under a yellow alert, on November 2. It separately stated that extremely heavy rainfall was possible in some districts on November 2. However, the supplied report does not list the names of all the districts covered by these alerts.
The weather system is significant for the Chennai metropolitan region and surrounding urban areas because intense rainfall can affect roads, low-lying neighbourhoods, drainage networks and daily travel. Tiruvallur lies within the wider urban and industrial belt north-west of Chennai, where rainfall conditions can have implications beyond district boundaries.
For November 3, the report identified the Nilgiris as a district likely to receive heavy rainfall under a yellow alert. The forecast categories and dates were attributed to the weather centre in the report.
The next key milestone is the storm’s expected coastal crossing between Nellore and Narsapur in the early hours of November 3. Further district-specific warnings and operational instructions would determine the local preparedness measures required in affected areas.
