To be fair to the airport (because it happens at them all in the UK) you can invest in all the equipment you like for intensive snow clearing ops, but if the snow continues to fall & fills in the area just cleared behind the snow crews, there isn't much you can do...other than keep going & do it again!
And - as much as I hate to say it - it really is the wrong type of snow! Much wetter & heavier than the drier, powdery stuff you get on the continent. Therefore longer & harder to clear, having to get rid of the slush as well as the snow on top.
Just my 2cm-worth!
