Cold Wave Explained: Dangers, Declaration Criteria, and Essential Safety Measures

• A cold wave is when temperatures drop significantly below normal, influenced by wind speed, humidity, and night chill.
• IMD declares a cold wave in plains when minimum temperature is 10°C or below, and 4.5°C to 6.4°C below normal.
• Severe cold waves, lasting several days, increase risks of hypothermia, respiratory illnesses, heart attacks, and strokes.
• Causes include cold winds from the northwest, clear skies after Western Disturbances, and cold air from snowy regions.
• Protection measures: wear warm layered clothing, avoid going out in extreme cold, eat nutritious food, and protect vulnerable groups.

Why It Matters: Understand cold wave criteria, its dangers, and adopt precautions to stay safe during extreme winter conditions.