Polar vortex status
The SPV is currently marginally weaker than ERA5 average
and is forecasted to become stronger than average (according to GEFS-mean)
26 of 31 members have stronger vortex than average at the
last forecast step (2024-08-10 18:00:00)
The zonal mean zonal wind at 10 hPa 60N is today (GFS analysis): -9.6 m/s
Weakest zonal wind at 10 hPa 60N in ERA5 record for todays date is: -11.2 m/s 2019
Strongest zonal wind at 10 hPa 60N in ERA5 record for todays date is: -7.2 m/s 1992
![-](http://178.62.112.79/prod/gfs/eps/strat/u10serie_gefsonly.png)
![-](http://www.weatheriscool.com/prod/gfs/vertical_cross/umedel60.png)
![-](http://178.62.112.79/prod/gfs/ssw/10/0.png)
![-](http://178.62.112.79/prod/gfs/ssw/epsmean10hPa60N.png)
![-](http://104.248.166.199/test/eddyz/40_80_0.png)
![-](http://104.248.166.199/test/GFS_phase_diagram.png)