Biting cold spell goes on.

LAHORE -- Blanketed by fog, plains of the country remained in the grip of severe cold wave on Friday. Experts predicted harsh weather conditions will persist for a couple of days. People prefer staying indoors to avoid exposure to extreme weather conditions. Fog started falling in the evening before lifting of the existing mass and become so dense at midnight that the visibility reduced to zero in open areas. Incessant fog and biting cold continued disturbing routine life by hampering air, rail and road traffic besides causing low gas pressure in major cities including Lahore. Less visibility led to closure of portions of Motorway, hampering vehicular movement on inter and intra city routes including National Highway and disrupting schedule of flights and trains. Lack of sunshine and continuously blowing winds...