Source: IE
Context: A severe winter storm recently struck the United States, affecting 60 million people across 30 states, causing power outages and dangerous road conditions.
About Polar Vortex:
- What it is: The polar vortex is a massive area of low-pressure, cold air swirling in the Earth’s polar regions. It is categorized into tropospheric (surface to 15 km) and stratospheric (15 to 50 km) vortexes.
- Formation: Driven by Earth’s rotation and temperature differences, it is stabilized by a strong jet stream that separates cold arctic air from warmer regions.
- Characteristics:
- Usually confined to the poles but can weaken and expand southward.
- Strong polar vortex maintains a steady circular jet stream; a weakened vortex causes wavy jet streams.
- Impacts:
- Cold Weather: Weakening allows cold air to travel southward, affecting areas as far as Florida.
- Extreme Weather: Disrupts jet streams, leading to unusual weather patterns, including storms and prolonged cold spells.
- Economic and Social Disruptions: Causes power outages, travel delays, and increased heating costs.
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