Polar vortex status

The SPV is currently stronger than ERA5 average
but is forecasted to weaken compared to average (according to GEFS-mean)
1 of 31 members have stronger vortex than average at the last forecast step (2023-02-18 18:00:00)

The SSW probability in GEFS is: 77%

The zonal mean zonal wind at 10 hPa 60N is today (GFS analysis): 32.0 m/s
Weakest zonal wind at 10 hPa 60N in ERA5 record for todays date is: -15.5 m/s 2009
Strongest zonal wind at 10 hPa 60N in ERA5 record for todays date is: 62.3 m/s 1989


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