Captncannot,
Well in the North East of Scotland,when it snows the airport authority go out with snow clearing trucks and clear it.It can cause distruption depending on how much snow has fallen,showers or a real dumping.We do the best we can to keep it all moving,and from an ATC point of view is hard work.Also getting to work through the snow can be fun as well.
Having tried to fathom out the Bekol blockages in the past,it was best described as ATC drawn up on the back of a fag packet,every night.The separations changed from day to day.
I explained the Bekol blockage separation system to other UK controllers,and they fell off their chairs laughing.Say no more.