Thiruvananthapuram: With several places across the southern districts of Kerala receiving heavy pre-monsoon showers on Tuesday morning, the met department has revised its forecast for the day. The India Meteorological Department has sounded a red alert in Kottayam and Ernakulam districts on Tuesday. These districts are expected to receive rainfall above 204.4mm in 24 hours. Orange and yellow alert is sounded for various districts in the state as the rain is expected to intensify in the next hours. Orange alert in districts May 28 - Pathanamthitta, Alappuzha, Idukki May 29 - Pathanamthitta, Alappuzha, Kottayam, Ernakulam Yellow alert in districts May 28 - Thiruvananthapuram, Kollam, Thrissur, Palakkad, Malappuram, Kozhikode May 29 - Thiruvananthapuram, Kollam, Idukki, Thrissur May 30 - Pathanamthitta, Alappuzha, Kottayam, Ernakulam, Idukki, Thrissur May 31 - Pathanamthitta, Alappuzha, Kottayam, Ernakulam, Idukki, Thrissur June 1 - Alappuzha, Ernakulam, Idukki, Thrissur...