However, aside from other forcing, the AkR regime may be associated with a north-south elongation of the vortex in the stratosphere, as is hinted at in this CFS forecast for March.
Check out our paper to find out more: https://t.co/kb8c2yrKsz pic.twitter.com/46UToH9gg6

— Dr Simon Lee (@SimonLeeWx) January 21, 2020