The IMD has issued heavy rainfall, hailstorm and heatwave warning for several states/UTs for May 1. Heavy to very heavy rainfall is very likely over Arunachal Pradesh, Nagaland, Manipur, Mizoram, Tripura, West Bengal, Sikkim, Assam, Meghalaya, Kerala, Puducherry, Karnataka, TN and Puducherry. Hailstorm is very likely over Odisha and Karnataka. Further, heatwave is very likely over Maharashtra.