From Washington Post / Boston.com today...
Not agreeing or disagreeing, and I know previously discussed here extensively...
Simplistic explanation of recent SSW event, split PV, negative AO / NAO, possible implications for us:
https://www.boston.com/uncategorized/weather/2021/01/05/the-polar-vortex-is-splitting-in-two-which-may-lead-to-weeks-of-wild-winter-weather