An 'Orange Alert' was issued for Idukki, Malappuram, Kozhikode, Wayanad and Kasargod districts for Friday.
Idukki and Kozhikode have been put on 'Orange Alert' for Saturday as well.
Meanwhile, a meeting of the National Crisis Management Committee (NCMC), chaired by Cabinet Secretary PK Sinha was held on Thursday to review the prevailing flood situation in Maharashtra, Karnataka, Kerala and Gujarat.
Last year's disastrous floods in Kerala claimed over 350 lives across the state.
The shutters of nearly 33 dangerously full dams and reservoirs were opened for the first time in the history of Kerala in nearly a century.
State authorities estimated a cumulative loss worth over Rs 21,000 crore in the catastrophe that was announced as 'calamity of severe nature' by the central government.
A 'Red Alert' spells out a warning for very heavy to extremely heavy rainfall, whereas an 'Orange Alert' denotes that an area is likely to get heavy to very heavy rainfall.
(With inputs from ANI)
Kerala Disaster Management Authority on Wednesday issued 'Red Alert' warning for Idukki, Malappuram and Kozhikode districts for 24 hours.