Of interest: both the ECMWF and UKMET are predicting a weaker-than-normal stratospheric polar vortex during November... While we can't come to any grand conclusions, a potential weaker vortex around the start of winter 2021-22 is a puzzle piece well worth watching
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Early hints of a weak Northern Hemisphere stratospheric polar vortex in November - consistent with a weak La Niña background. There is actually some skill at this lead time, especially for the multi-model ensemble.
In hoofdlijnen. Zowel UKMO als EC laten een zwakke poolwervel zien in november.
Afwachten. De voorbeschouwingen voor de winter 2022 gaat van start.


