Use app×
Join Bloom Tuition
One on One Online Tuition
JEE MAIN 2025 Foundation Course
NEET 2025 Foundation Course
CLASS 12 FOUNDATION COURSE
CLASS 10 FOUNDATION COURSE
CLASS 9 FOUNDATION COURSE
CLASS 8 FOUNDATION COURSE
0 votes
79 views
in GK by (72.6k points)
closed by

Consider the following statements about Western Disturbance:

  1. The western cyclonic disturbances are weather phenomena of the winter months brought in by the westerly flow from the Mediterranean region.
  2. These storms are extra-tropic cyclones.
  3. This disturbance is usually associated with a cloudy sky, higher night temperatures and unusual rain.

Which of the above statement is/are correct?


1. 1 and 2 only
2. 1 and 3 only
3. 2 and 3 only
4. 1, 2 and 3

1 Answer

0 votes
by (121k points)
selected by
 
Best answer
Correct Answer - Option 4 : 1, 2 and 3

The correct answer is 1, 2 and 3.

  • Western Disturbances
    • The western cyclonic disturbances are weather phenomena of the winter months brought in by the westerly flow from the Mediterranean region. Hence, statement 1 is correct.
    • Western Disturbances develop in the mid-latitude region (north of the Tropic of Cancer), not in the tropical region, therefore they are called as mid-latitude storms or extra-tropical storms. Hence, statement 2 is correct.
    • Extra-Tropical Cyclones are also called as winter storms and blizzards.
    • A high-pressure area over Ukraine and neighbourhood consolidates, causing the intrusion of cold air from Polar Regions towards an area of relatively warmer air with high moisture.
      • This generates favourable conditions for cyclogenesis in the upper atmosphere, which promotes the formation of an eastward-moving extratropical depression.
      • They gradually travel across the middle-east from Iran, Afghanistan and Pakistan to enter the Indian sub-continent.

  • Impact of Western disturbance
    • Western disturbances 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 rainHence, statement 3 is correct.
    • Precipitation during the winter season has great importance in agriculture particularly for rabi crops including wheat, which is one of the most important Indian crops.
    • During the monsoon season, western disturbances may occasionally cause dense clouding and heavy precipitation.
    • Strong western disturbances can help residents, farmers and governments avoid many of the problems associated with water scarcity.
    • Weak western disturbances are associated with crop failure and water problems across north India.

Welcome to Sarthaks eConnect: A unique platform where students can interact with teachers/experts/students to get solutions to their queries. Students (upto class 10+2) preparing for All Government Exams, CBSE Board Exam, ICSE Board Exam, State Board Exam, JEE (Mains+Advance) and NEET can ask questions from any subject and get quick answers by subject teachers/ experts/mentors/students.

Categories

...