A decidedly weak stratospheric polar vortex indicated by the ECMWF weeklies from late October into November 👀
— Ben Noll (@BenNollWeather) September 23, 2021
The forecast 10 hPa winds are near the *10th percentile* of the model climate in early November.
❄️ Pretty interesting stuff - much different from this time last year! pic.twitter.com/9WEkoKiwNA