"We have been informed that the depression is intensifying and situated 390 kms away from the Thiruvananthapuram coast now", Chief Minister Pinarayi Vijayan said. Cyclone storm warning signal 3 has been hoisted at all ports and harbours across the state.
The depression, which is forecast to develop into a deep depression in the next 48 hours, is likely to generate winds with speeds of up to 60 kmph in the state along with thundershowers.
A meeting of the executive committee of the State Disaster Management Authority (SDMA) made a decision to extend the alert for coastal communities till March 15 in view of the evolving situation.
Coastal control rooms have been directed to remain operational 24x7 till Thursday.
According to media reports, the Kerala government has already issued advanced warning to the fishermen and asked coastal villages to be on alert.
Ocean State forecast indicates that offshore the maximum high waves will be in the range of 4 to 5.2 meters during 2.30 pm on March 13 to 11.30 pm on March 14 along Kerala coast from Vizhinjam to Kasaragod.More news: Devil May Cry Coming To Monster Hunter
A weather bulletin issued by the IMD said squally winds with speed reaching 45-55 kmph gusting up to 65 kmph were likely over the Comorin area, south Tamil Nadu and south Kerala coast in the next 24 hours.
The depression has moved north to northwest with a speed of about 20 kph and lay centred over South East Arabian Sea, adjoining equatorial Indian Ocean.
It is very likely to move initially west-northwestwards and then northwestwards and concentrate into a depression over the southeast Arabian Sea (Maldives area) during the next 36 hours.
"We have alerted fishermen not to venture into sea till March 15", Sudevan said. The sea during this time will be "rough to very rough" around the area as well as in Lakshadweep.
Kerala's chief secretary Paul Antony met different departmental heads Tuesday morning to review preparations.
"Officials have been asked to keep ready all coastal shelters".