Polar vortex status

The SPV is currently weaker than ERA5 average and is forecasted to remain weaker than average (according to GEFS-mean) 0 of 31 members have stronger vortex than average at the last forecast step (2026-11-12T00:00:00) The SSW probability in GEFS is: 65.%. The SSW probability in ECEPS is: 50%. The zonal mean zonal wind at 10 hPa 60N is today (GFS analysis): 20.3 m/s Weakest zonal wind at 10 hPa 60N in ERA5 record for todays date is: 11.7 m/s 2005 Strongest zonal wind at 10 hPa 60N in ERA5 record for todays date is: 29.7 m/s 2018