“Your periodic reminder that less ice at the Arctic is consistent with a weaker jet stream that allows cold air to drift down into the Great Plains.

The frigid temps you're experiencing happen BECAUSE of a warming planet, not in spite of it.” Via Dr Steve Campbell from the other place

He later references https://www.climate.gov/news-features/understanding-climate/understanding-arctic-polar-vortex

https://twitter.com/historian_steve/status/1745920780624711886?s=46&t=4TnCHrl_NkgPDLmdROH8hA

Understanding the Arctic polar vortex

Polar vortex expert Amy Butler and Arctic expert James Overland offer perspectives on the February cold snap in the southern U.S., the polar vortex, and how the Arctic might influence mid-latitude weather.

NOAA Climate.gov
Slowing Rossby Waves Leading to Extreme Weather?

Rational Analysis of Global Civilizational Risk