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

The strat. vortex is currently marginally weaker than ERA interim average 
and is forecasted to... (according to GEFS-mean)
0 of 0 members have stronger vortex than average at the 
last forecast step (2021-06-28 12:00:00)

The zonal mean zonal wind at 10 hPa 60N is today (GFS analysis): -11.5 m/s 
Weakest zonal wind at 10 hPa 60N in ERA interim record for todays date is: -15.7 m/s 1997 
Strongest zonal wind at 10 hPa 60N in ERA interim record for todays date is: -7.5 m/s 1981