Question

Explain why the northwestern part of India receives rainfall during winters.

Answer 1

1. Origin: Western Disturbances are extratropical storms that originate in the Mediterranean region.
2. Path: They travel eastwards across Iran, Afghanistan, and Pakistan, reaching north-western India (especially Punjab, Haryana, and western Uttar Pradesh) during December to February.
3. Mechanism: These disturbances are moisture-laden winds that interact with the Himalayan ranges, causing precipitation. The moisture condenses due to orographic lifting and brings winter rainfall and snowfall, particularly in Jammu & Kashmir, Himachal Pradesh, and Punjab.
4. Significance: This rainfall is crucial for Rabi crops like wheat and mustard.

So, the Western Disturbances are the primary reason for winter rainfall in north-western India.