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The winter rains caused by Western Disturbance in North Western Plain of India gradually decreases from ?

The winter rains caused by Western Disturbance in North Western Plain of India gradually decreases from ? Correct Answer West to East

The correct answer is West to East.

Key Points

  • Western Disturbance -
    • It is an extratropical storm originating in the Mediterranean region.
    • It brings sudden winter rain to the north-western parts of the Indian sub-continent and others.
    • It is a non-monsoonal precipitation pattern due to the westerlies.
    • Extratropical storms are a global phenomenon with moisture usually carried in the upper atmosphere.
    • In the Indian subcontinent, moisture is sometimes shed as rain when the storm system encounters the Himalayas.

Important Points

  • The winter rains caused by Western Disturbance in North-Western Plain of India gradually decreases from West to East as they gradually lost their effectiveness.
  • Western Disturbance originates in the Mediterranean Sea as extra-tropical cyclones. A high-pressure area over Ukraine and neighborhood consolidates, causing the intrusion of cold air from Polar Regions towards an area of relatively warmer air with high moisture region.
  • This generates favorable conditions for cyclogenesis in the upper atmosphere, which promotes the formation of an east direction moving extratropical depression.
  • They gradually travel across the middle-east from Iran, Afghanistan, and Pakistan to enter India.

Additional Information 

  • It plays important role in bringing moderate to heavy rain in low-lying areas and heavy snow to mountainous areas of the Indian Subcontinent.
  • This disturbance is usually associated with a cloudy sky, higher night temperatures, and unusual rain.
  • This precipitation has great importance in agriculture, particularly for the Rabi crops, example - Wheat.
  • However excessive precipitation due to this disturbance can cause crop damage, landslides, floods, and avalanches.
  • Over the Indo-Gangetic plains, it occasionally brings cold wave conditions and dense fog.
  • These conditions remain stable until disturbed by another western disturbance.
  • When western disturbances move across northwest India before the onset of the monsoon, a temporary advancement of monsoon current appears over the region.

Related Questions

With reference to western disturbances, consider the following statements: 1. The Western Disturbance originate over the east Mediterranean sea and travel westtward. 2. The moisture content of the Western Disturbance gets augmented from the Caspian Sea in the north and Persian Gulf in the south. 3. The Western disturbance is regarded as highly beneficial for Rabi crops in North India. Which of the above statement is/are correct?
Consider the following statements about Western Disturbance: The western cyclonic disturbances are weather phenomena of the winter months brought in by the westerly flow from the Mediterranean region. These storms are extra-tropic cyclones. This disturbance is usually associated with a cloudy sky, higher night temperatures and unusual rain. Which of the above statement is/are correct?
Statements : All fruits are vegetables. All pens are vegetables. All vegetables are rains.

Conclusions :
I. All fruits are rains.
II. All pens are rains.
III. Some rains are vegetables.
The diagram shows the survey on a sample of 197 persons with reference to their preferences for three seasons that is winter, summer, and spring. 120 persons like spring season, 100 like Winter Season, and 90 like summer season. 50 persons like both spring and winter season only, 25 like both summer and winter season only, and 18 like both spring and summer season only. 10 persons like all three seasons. How many persons like only the winter season?
With reference to winter season in India, consider the following statements: 1. During the winter season in India, an area of high pressure is developed in the regions lying north of Himalayas. 2. A decrease in prevailing night temperature is associated with the arrival of western disturbances in the winter season. Which of the statements given above is/are correct?
In the following question the 1st and the last part of the sentence/passage are numbered 1 and 6. The rest of the sentence/ passage is split into four parts and named P, Q, R and S. These four parts are not given in their proper order. Read the sentence/passage and find out which of the four combinations is correct.  1. The northeastern region presents a diverse system of habitats, ranging from tropical rainforests to alpine meadows. P. In eastern Himalayas the rainfall ranges from 125 to 300 cms, in Assam from 178 to 305 cms. Q. The temperature in the region varies with location, elevation,topography, rainfall and humidity. R. The uneven distribution affects the region in two opposite ways, floods and droughts. S. It is largely a humid tropical region with two periods of rainfall; the winter rains come from the west and the summer rains are brought by the monsoon winds. 6. The winter temperature in Shillong, for example, varies from 4°C to 24°C; in Gangtok, from 9°C to 23°C.
Which of the following statement is/are correct? Western Coastal Plain is bordered by the Pacific Ocean with a 2080 km coast and 12369 km shoreline. Pacific coastal plain is much narrower than the western coastal plain. California, Oregon and Washington lies along the Pacific coast. Select the correct code from below.
In this section each item consists of six sentences of a passage. The first and sixth sentences are given in the beginning as S1 and S6. The middle four sentences in each have been jumbled up and labelled as P, Q, R and S. You are required to find the proper sequence of the four sentences and mark your response accordingly on the Answer Sheet. S1 : We drink more water during summers. S6 : There are variations in weather conditions during different seasons. P : On the other hand in north-eastern states, winters are mild except in the hills. Q : Because in North India, both the sessions have extreme weather conditions. R : School clothes during the summer are different from the winter. S : Why do you wear lighter clothes during summers and heavy woollen clothes during the winter in north India? The correct sequence should be:
Read the passage carefully and choose the best answer to each question out of the four alternatives.
Eight north Indian Ocean countries, namely, Bangladesh, India, the Maldives, Myanmar, Oman, Pakistan, Sri Lanka and Thailand, were asked to contribute names so that a combined list could be compiled. Each country gave eight names and a combined list of 64 names was prepared. This list is currently in use, and all cyclones arising in the north Indian Ocean are named from this list, with one name from each country being used in turn. Almost 38 or 39 names from the list have been used up, but since many cyclones dissipate long before they hit land, their names rarely figure in the papers or other media. The names that people do know about, and remember are, naturally, those that were most destructive ones, or very recent. Aila, in 2009 is remembered with a shudder for the enormous destruction it caused in West Bengal and Bangladesh; Phaillin, also for the damage it caused when it hit the Odisha coast in 2013. Two harmless cyclones, which also might remain in peoples memory, are the more recent ones of 2014 — Hudhud, which threatened the east coast of India and Nilofar, which was expected to, but did not, devastate the western coast. The names in the cyclone list are usually words one associates with storms; words which mean water or wind or lightning in various national languages. Sometimes they are names of other things — birds or flowers or precious stones. The name Aila, contributed by the Maldives means fire, the name Phaillin from Thailand means sapphire, the name Hudhud from Oman is the name of a bird, probably the hoopoe, and the name Nilofar, given by Pakistan, is the Urdu name of the lotus or water lily. The eight names suggested by India, and which are in the list of 64, are Agni, Akaash, Bijli, Jal, Leher, Megh, Sagar and Vayu, meaning in that order, fire, sky, lightning, water, wave, cloud, sea and wind. Five of these names (that is, up to Leher) have been used so far.
Which name suggested by India has not been used so far?
Consider the following statements regarding rainfall during the winter season in India.  I. Due to the accumulation of moisture from the Bay of Bengal, rainfall takes place in Tamil Nadu, Andhra Pradesh, Karnataka and Kerala.  II. The northeastern part of India does not experience any rainfall during the winter season.  III. There is some rainfall during the western disturbances in north-west India.  Which among the above statements is/are correct?