Polar vortex status

The SPV is currently weaker than all other years in the ERA5 record for todays date!!! . The zonal mean zonal wind at 10 hPa 60N is today (GFS analysis): -25.3 m/s Weakest zonal wind at 10 hPa 60N in ERA5 record for todays date is: -14.5 m/s 1986 Strongest zonal wind at 10 hPa 60N in ERA5 record for todays date is: 41.6 m/s 1997