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Western Disturbances/ Extra tropical disturbances

Posted on : 04 Jan 2020

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  • A western disturbance is an extra tropical storm which originates in the Mediterranean Sea and brings sudden rainfall to the north-western parts of Indian Sub-continent. It is a non-monsoonal precipitation pattern driven by the westerlies.
  • It is a normal phenomenon that can be observed over western Himalayas and north Indian plains from October to March.
  • Extratropical storms are a global phenomenon 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.

Article Related Questions

  1. Which of the following statements is/are correct regarding Western Disturbances?
    1.These are extra tropical disturbances which originates in the Mediterranean Sea
    2.It brings sudden rainfall to the north-western parts of Indian Sub-continent.
    Select the correct answer using the code given below

  2. 1.1 only

    2.2 only

    3.Both 1 and 2

    4.Neither 1 nor 2

    Right Ans : Both 1 and 2

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