Hyderabad, April 20 -- Hailstorm occurred at isolated places in the districts of Karimnagar, Jagityal, Rajannasircilla, Kumarambheem, Yadadriabhuvanagiri, Siddipet and Rangareddy on Saturday. "The trough at 1.5 km above mean sea level from Chhattisgarh to Coastal Karnataka now runs from Chhattisgarh to South Interior Karnataka across Telangana and North Interior Karnataka. An upper air cyclonic circulation extending upto 0.9 km above mean sea level lies over North Interior Karnataka and neighbourhood. The trough of low at mean sea level over Equatorial Indian Ocean and adjoining central parts of South Bay of Bengal persists. An upper air cyclonic circulation over Chhattisgarh & adjoining areas of Vidarbha and Telangana extending up to 0.9...