The IMD has warned of persistent dense to very dense fog across northwest, central, east and northeast parts during morning hours on January 6, 2026.

Visibility may drop below 200 metres in isolated pockets of Punjab, Haryana, Chandigarh, Rajasthan, East Uttar Pradesh, Madhya Pradesh and Uttarakhand.

Cold day and cold wave conditions are expected to intensify in parts of Punjab, Haryana, Chandigarh, Rajasthan and Jharkhand as minimum temperatures dip further due to weak Western Disturbances.

East Uttar Pradesh may continue to see dense fog till January 12, while Bihar and Assam could experience morning haze till January 10.

Zero visibility was reported at Gorakhpur, Gwalior and Jabalpur, leading to flight disruptions and major traffic delays on highways from Delhi to Patna.