Description : Date Palm trees and coconut trees are almost bent over, in Tehatta, West Bengal. Nor'westers are localized thunderstorms and rainfall events that occur in Eastern South Asia, particularly in Bengal, Odisha, Tripura, Assam, Bihar, and Jharkhand during summer. They typically occur in the afternoon or before sunset, bringing strong winds and heavy rain, often with hail, but lasting only a short time. Black Kalbaishakhi (Nor'westers) clouds roll in after a day of sweltering, humid heatwave, accompanied by gusty winds. India.