Polar vortex status

The SPV is currently stronger than ERA5 average
and is forecasted to remain stronger than average (according to GEFS-mean)
26 of 31 members have stronger vortex than average at the last forecast step (2024-05-09 18:00:00)

The SSW probability in GEFS is: 100%

The zonal mean zonal wind at 10 hPa 60N is today (GFS analysis): 1.8 m/s
Weakest zonal wind at 10 hPa 60N in ERA5 record for todays date is: -20.8 m/s 2011
Strongest zonal wind at 10 hPa 60N in ERA5 record for todays date is: 14.7 m/s 2009


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