The southwest monsoon has been vigorous over Arunachal Pradesh and Rayalaseema during past 24 hours. It is active over West Bengal, North East region, Bihar, Telangana, Coastal Andhra Pradesh and Andaman and Nicobar Islands. Met office has predicted that, heavy to very heavy rainfall would occur at a few places over Sub 'Himalayan West Bengal, North East region and at isolated places over Bihar.<br/><br/>It also said, heavy rainfall would occur at isolated places over Jammu and Kashmir, Himachal Pradesh, Uttarakhand, East Uttar Pradesh, Gangetic West Bengal, Nagaland, Manipur, Mizoram,Tripura, Coastal Karnataka, South Interior Karnataka and Kerala.