Nor ’westers: The rising temperature in the summer results in low-pressure troughs and attracts cyclonic and North West winds which result in rainfall along with thunderstorms in the months of April and May. These are known as Kal Baisakhi or nor-westers.
During this time Odisha, West Bengal, Assam, Bihar, Chhattisgarh, Jharkhand, Bangladesh, and North-Eastern states of India are affected by violent thunderstorms.