Western disturbance to trigger snowfall in hills, rain and cold wave in plains; IMD issues alertA fresh western disturbance is set to impact North and Northwest India from January 30 night, bringing heavy snowfall in Himalayan regions and rain in plains including Delhi-NCR. IMD has warned of cold wave conditions, dense fog, strong winds, and thunderstorms. This system will bring heavy rain and snowfall in the hilly states, while rain, cold waves, and dense fog may increase in the plains. Rain and Cold Wave in PlainsLight to moderate rain is expected in the northwest Indian plains, including Punjab, Haryana, Chandigarh, and Delhi-NCR, on February 1st. The cold wave is expected to intensify the cold.