The IMD has issued heavy to extremely heavy rainfall warning for several states/UTs for Friday. It is likely over parts of Uttarakhand, Arunachal Pradesh, Assam, Meghalaya, West Bengal, Sikkim, Uttar Pradesh, Bihar, Karnataka, Madhya Pradesh, Haryana, Chandigarh and Delhi. Himachal Pradesh, Kerala, Maharashtra, Nagaland, Manipur, Mizoram, Tripura, Tamil Nadu and Puducherry may also witness it.