The #spv stratospheric polar vortex is pretty strong on average at the moment
— Marco Petagna (@Petagna) December 11, 2021
Yesterday the EC analysis showed the zonal mean zonal #wind 10hpa 60N to be 38.4m/s or 86mph
In one section though (below) speeds are predicted to reach a staggering 275mph in the next few days!
🌬 pic.twitter.com/g5IanOC3Hg