Yep. The trick is to open the door slightly then bang it shut. Most of the snow blown up the door will fall off and the drift will compact it more so it doesn't all fall in. Cats now have a tunnel out of cat flap.
I am in Kirkheaton, Huddersfield. Being snowing very heavy here since before 10pm. Roads covered and no sign of slowing down. Started with rain, then ice pellets. Biggest snowflakes i've seen this winter.