####------------------------------------ Polar vortex status ------------------------------------###

The strat. vortex is currently weaker than ERA interim average 
and is forecasted to remain weaker than average (according to GEFS-mean)
1 of 31 members have stronger vortex than average at the 
last forecast step (2021-02-02 00:00:00)

The zonal mean zonal wind at 10 hPa 60N is today (GFS analysis): -4.3 m/s 
Weakest zonal wind at 10 hPa 60N in ERA interim record for todays date is: -14.5 m/s 2013 
Strongest zonal wind at 10 hPa 60N in ERA interim record for todays date is: 72.4 m/s 2005