Thiruvananthapuram: As heavy rains continued to lash several parts of Kerala, the India Meteorological Department (IMD) on Wednesday afternoon issued a Red alert in four districts of the state for the day, indicating extremely heavy rainfall.

The Red alert was issued in the northern Kerala districts of Kozhikode, Wayanad, Kannur and Kasaragod, while Orange alert sounded in Thrissur, Palakkad and Malappuram districts. A Yellow alert was declared in the rest of the districts.

Various weather forecasting centres in the country have predicted isolated heavy rains across the state on Wednesday.

The Kerala State Disaster Management Authority (KSDMA) has predicted widespread rain in the state for the next 5 days with chances of isolated thunder, lightning and strong winds due to the cyclonic circulation in and around Kerala as well as a low pressure trough from north Kerala to Vidarbha region.

The Central Meteorological Department has predicted isolated heavy and very heavy rainfall showers in the state for the next 2 days and heavy rainfall on the 2 days after that.

The weatherman has said that squally weather with speed reaching 40-50 kmph gusting to 60 kmph is likely to prevail over Gulf of Mannar, Comorin area, along and off south Tamil Nadu coast and adjoining southwest Bay of Bengal and adjoining Southeast Arabian Sea, Andaman sea and adjoining southeast and East central Bay of Bengal.

"Fishermen are advised not to venture into these sea areas," the IMD said.

Kerala has been experiencing heavy rainfall for the past few days and it has disrupted normal life in certain places of the state.

Considering the heavy rains even as the onset of Southwest monsoon is expected only by the end of this month, the state government had called a meeting of the district collectors and issued directions to deal with any eventualities.

The National Disaster Response Force (NDRF) has already deployed five teams to Kerala.

A red alert indicates heavy to extremely heavy rains of over 20 cm in 24 hours, while orange alert means very heavy rains from 6 cm to 20 cm of rain. A yellow alert means heavy rainfall between 6 to 11 cm.

The State Disaster Management Authority (SDMA) has asked people to stay away from rivers and other water bodies until the rains subside.

The SDMA have also asked people not to travel to hilly regions unless it's an emergency and to avoid night travel until the rain subsides.

The district administrations have also warned the people staying near coastal areas of high tide.

The IMD has earlier predicted that the Southwest monsoon, which is also known as Edavapathy in the state, is likely to bring its first showers to Kerala by May 27, five days earlier than the normal onset date.