IMD Weather Update: Visibility has been severely affected due to foggy conditions in several states. In Delhi-NCR, brief spells of fog led to impaired visibility. IMD has issued a yellow alert in the national capital in view of dense fog at isolated places during morning hours on December 26. The post Weather Update: IMD issues yellow alert in Delhi, cold wave and dense fog in over 10 states, relief unlikely until… appeared first on News24 .