The IMD is also anticipating the development of a positive Indian Ocean Dipole (IOD) in the east compared to the west, which helps bring rain in several states in southern India.
Kerala rains. (Wikimedia)
The southwest monsoon may to hit Kerala coast and parts of northeast by Thursday, 30 May, a day ahead of the weather office forecast. Kerala is receiving heavy rains for the past few days resulting in a surplus May rainfall, weather office data shows. Conditions are favourable for further advance of Southwest Monsoon into other parts of South Arabian Sea.