Predictability of European winter 2020/2021: Influence of a mid‐winter sudden stratospheric warming oleh Julia F. Lockwood, Nicky Stringer, Hazel E. Thornton, Adam A. Scaife, Philip E. Bett, Tamara Collier, Ruth Comer, Nick Dunstone, Margaret Gordon, Leon Hermanson, Sarah Ineson, Jamie Kettleborough, Jeff Knight, Joseph Mancell, Peter McLean, Doug Smith, Tony Wardle, Prince Xavier, Ben Youngman