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Western Disturbance

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Western Disturbance:
A western disturbance is an extratropical storm originating in the Mediterranean region that brings sudden winter rain to the northern parts of the Indian subcontinent, which extends as east as up to northern parts of Bangladesh and South eastern Nepal. It is a non-monsoonal precipitation pattern driven by the westerlies. The moisture in these storms usually originates over the Mediterranean Sea, the Caspian Sea and the Black Sea. Extratropical storms are a global phenomena with moisture usually carried in the upper atmosphere, unlike their tropical counterparts where the moisture is carried in the lower atmosphere. In the case of the Indian subcontinent, moisture is sometimes shed as rain when the storm system encounters the Himalayas. Western disturbances are more frequent and stronger in the winter season.

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Western Disturbances, IMD's color-coded alerts and what they mean | OneIndia News [Video]

Western Disturbances, IMD's color-coded alerts and what they mean | OneIndia News

After weeks of reeling under an intense heatwave, the Delhi-NCR finally got some respite today with thunderstorms, a spell of rainfall and gusty winds blessing the region early morning. The IMD has..

Credit: Oneindia     Duration: 05:11Published

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