Q. Consider the following statements regarding Western Disturbances:
1.Western Disturbances are extra-tropical weather systems that travel from Iran and Afghanistan, picking up moisture from the Mediterranean Sea, Black Sea, Caspian Sea, and occasionally the Arabian Sea.
2.These disturbances are embedded in the Subtropical Westerly Jet Stream (STWJ) and are most active during the pre-monsoon and post-monsoon periods.
Which of the above statements is/are correct?
Answer: A
Notes:
Explanation:
- Statement 1 is correct: Western Disturbances originate beyond Iran and Afghanistan and pick up moisture from the Mediterranean Sea, Black Sea, Caspian Sea, and occasionally the Arabian Sea.
- Statement 2 is incorrect: These disturbances are most active during the boreal winter months (December to March), not the pre-monsoon and post-monsoon periods.
Source– Forum IAS
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