Severe Polar Vortex Set to Bring Record Cold to U.S. Amid Global Warming Trends
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- The U.S. faces the coldest Arctic air this season, with polar vortex warnings.
- Temperatures could drop to an average low of 16.6 degrees Fahrenheit by Tuesday.
- All states except Hawaii, California, and Florida will experience cold weather.
- Experts are studying the unusual frequency of polar vortex stretching this winter.
- A high-pressure system over Greenland is affecting the jet stream and polar air.
- Despite the cold, the world continues to warm, with January setting a heat record.
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