So far, the effects of a strong polar vortex have hardly reached to the lower troposphere.
— Mika Rantanen (@mikarantane) December 1, 2021
Partly as a result, northern Europe has got to taste a real winter.
GFS predicts the situation may change soon...https://t.co/Mv6NubM0Kt pic.twitter.com/miXywUG5P8