IMD: Dense Fog, Cold Alert for North India; UP, Delhi, Haryana hit, NCR AQI Poor.

• IMD issued a severe fog warning for Dec 12 morning across 10 states, including 'very dense fog' for UP and 'dense fog' for Delhi, Haryana, and NE states.
• Delhi-NCR experiences a 2-degree temperature drop, with minimums around 8°C, alongside 'poor' to 'very poor' air quality.
• Water sources in Uttarakhand's Gangotri National Park are frozen due to extreme cold, forcing locals to melt ice for water.
• West Bengal is forecast to have dry weather for the next seven days, with Darjeeling recording the lowest temperature at 6.2°C.

Why It Matters: Severe fog and cold across multiple states will disrupt travel and pose health risks.