North India Freezes: Zero Visibility, Flights Halted as Dense Fog Grips UP

• Dense fog has reduced visibility to zero at Varanasi airport, affecting flights, with an Air India flight cancelled.
• Similar zero visibility conditions reported in Ayodhya, Kanpur, Agra, Prayagraj, and Unnao.
• Severe cold wave has prompted school closures in Jaunpur and Sultanpur.
• An orange alert for dense fog and cold day warning has been issued for numerous districts across Uttar Pradesh.
• The Meteorological Department predicts intensifying cold from Thursday due to north-westerly winds, with no relief from fog.

Why It Matters: North India battles severe cold and dense fog, causing zero visibility, flight disruptions, and school closures.