where exactly they can put the snow
I´m sorry, but a quick look at Google maps shows plenty of areas to get rid of snow from the RWY and TWYs. You need a hell of a lot more than 3-4 inches to get into problems with critical snow banks.
Aprons? Well, even airports that work well in proper winter conditions need to truck snow off site at some point. I all boils down to training and procedues within airfield ops. In short term, using a couple of 100 meters of TWY as storage is easy. (Remove later when things quiet down some)
I know it´s not common with this much snow in the south of the UK, but working approach for an airport that uses 12-15 minutes to close-sweep-remove banks with blowers-clear exits-lay chemicals or sand-run friction test on 3500 meters of RWY.......
......it messes with my mind to hear about hours and days of problems.
A team from Gatwick visited Oslo last year to learn. Perhaps they should let a couple of guys stay for one whole winter......to learn.
Quick google gave the Heathrow Snow Plan
http://www.baa.com/assets/Internet/H..._2010_2011.pdf
It lists the clearence equipment, and with some more google to find some details on them...
Oh dear.....not much to work with.