Bhubaneswar: Some districts of Odisha are going to witness heavy rains from tomorrow as a fresh low pressure is likely to form over the Bay of Bengal on the 19th of August. Due to its influence, coastal and north western districts of the state are expected to receive heavy to very heavy rainfall till 20th August. The meteorological Department has issued Heavy rain warning for some districts and very heavy rain for some districts on the 19th and 20th August.