What causes rainfall in northern plains in winters?
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Winter rainfall in North west India is mainly attributed to Western Disturbances. Western Disturbances are nothing but low pressure systems on upper atmosphere which form over Mediterranean region and travel east across the globe.
When these low pressure systems come into Indian subcontinent they get blocked by Himalayas and precipitates rain in North western plains and as snow in higher altitudes of Western Himalayas.
After precipitating over North west India they weaken and devoid of moisture they blow as dry winds creating dense fog over Northern plains.
When these low pressure systems come into Indian subcontinent they get blocked by Himalayas and precipitates rain in North western plains and as snow in higher altitudes of Western Himalayas.
After precipitating over North west India they weaken and devoid of moisture they blow as dry winds creating dense fog over Northern plains.
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