Experimenting with 100mb/60°N wind forecasts, to accompany the usual U10/60 products. Interesting to see quite high skill in the September-issued Met Office model hindcasts for December - and this model shows the weakest 100mb vortex for this December. 1/3 pic.twitter.com/jXNb2sirj4

— World Climate Service (@WorldClimateSvc) September 21, 2021