Northwest India is the region of the country which is mostly affected by the Western Disturbances travelling across the hills of North India. In fact, during the winter season, minimum temperatures of Punjab, Haryana, Delhi, North Rajasthan and West Uttar Pradesh are governed by the wind direction.
The cold winds from north and northwest direction, drop the minimums as they travel from snow clad mountains of Jammu and Kashmir and Himachal Pradesh, which has been the case recently as well.
Moreover, whenever these northerly winds continue for a longer duration, significant drop in night temperature also results in cold wave to severe cold wave conditions over many parts of Northwest India.
Meanwhile, during the approach of Western Disturbances, northerly winds are being obstructed by southeasterly warmer winds which result in an increase of minimum temperatures.
Now, the ongoing feeble Western Disturbance will move away, and temperatures over Northwestern Plains will drop marginally till January 10.
However, another active Western Disturbance will give good rain and snow over hilly states between January 10 and 13. Thus, during that time, we expect scattered light to moderate rain and thundershowers over many parts of Punjab and isolated places of north Rajasthan and Haryana between January 10 and 11.
Minimums across entire Northwest India will also rise during that time. But after January 13, Western Disturbance will move away and cold winds from north will once again commence leading to drop in temperatures but during that time drop in temperatures will not be very significant.
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