Due to low pressure area has formed over south west Bay of Bengal there will be heavy rain is expected to occur over coastal Tamil Nadu and Andhra.
A cyclonic storm is brewing in the Bay of Bengal. A deep depression over east central Bay of Bengal will intensify into a cyclonic storm and slowly move west-north westwards in the next 12 hours.
The meteorological department sources said the Chennai city is likely to get rains by Tuesday evening or Wednesday morning. However, dry weather would prevail on Monday. The sea will be moderate to rough.
The system will move towards the coasts of south Andhra Pradesh and north Tamil Nadu in the subsequent 72 hours. Presently, the deep depression lies centred about 900 km east-northeast of Chennai.