A fresh western disturbance is likely to affect the western Himalayan region from January 20 and the adjoining plains of north-west India from January 21.
It will cause scattered to fairly widespread rain or snow over J&K from January 21 to 23 and scattered light to moderate rain or snow over Himachal Pradesh and Uttarakhand from January 20 to 23. Isolated heavy rain or snow may also hit J&K on January 22 and 23.
Scattered to fairly widespread moderate to dense fog (visibility 500 to 50 metres) with isolated extremely dense fog (visibility less than 50 metres) will cover most parts of the plains (Uttar Pradesh, Haryana, Delhi, Punjab and Rajasthan) from January 16 to 19. The intensity of the fog will decrease between January 20 and 23 and will increase again from January 24.
No significant change in minimum temperature will be witnessed from January 16 to 20. However, temperature will rise by about 2°C from January 21 to 23 and a slight decrease will occur thereafter over the plains.