The present work analyses climatological variations of Convective Available Potential Energy (CAPE) and Inhibition (CIN) over the eastern India (Odisha, West Bengal Jharkhand) during pre-monsoon season, where thunderstorms are frequent disastrous. utilises European Centre for Medium-Range Weather Forecast (ECMWF) reanalysis data: ERA-5 1987-2016, supplemented with information about thunderstorm...