January 11 , 2021
1419 days
1092
- Sudden stratospheric warming (SSW) event took place January 5, 2021.
- This would be the reason behind the very cold weather in large parts of the world.
- It was potentially the most dangerous kind, where the polar vortex split into two smaller ‘child’ vortices.
- The polar vortex is a large area of low pressure and cold air surrounding both of the Earth’s poles.
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