What are Western disturbances?
Western Cyclonic Disturbances are the temperate cyclones which originate over Mediterranean Sea and Western Asia, and move into India, along with the westerly flow of jet streams.
By causing cyclonic rains over the plans and snowfall in the mountains they distrub he quite weather conditions of north and north west India.
Winter rainfall caused by them locally known as ’ Mahawat’ is of immense importance for the cultivation of Rabi crops.