Compare the 10 hPa zonal-mean u forecast at 60N and 65N:
— Hannah Attard (@HannahAttard) January 8, 2021
At 60N: u is forecast to return to westerly and then back to easterly. (@SimonLeeWx)
At 65N: u is forecast to stay easterly.
Either way: vortex is elongated and displaced. pic.twitter.com/MXpzjCdRFK