More than 60 million Americans under weather alerts

 Much of the US is waking up to below freezing temperatures on Monday morning, with some of the coldest conditions expected in Kansas, while the Washington DC area is awaiting unusually heavy snowfall.

Forecasters say the extreme weather - named Storm Blair - is being caused by the polar vortex, an area of cold air that circulates around the Arctic.

A state of emergency has been declared in of Kansas, Missouri, Kentucky, Virginia, West Virginia, Arkansas and parts of New Jersey.

BBC 6 January 2025

https://www.bbc.com/news/articles/c0kvlkvzdgzo


Polar vortex

https://www.meteoswiss.admin.ch/weather/weather-and-climate-from-a-to-z/polar-vortex.html


“The jet stream causes all of our weather”

https://englundmacro.blogspot.com/2023/01/the-jet-stream-causes-all-of-our-weather.html






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