Spare Snow
Easy if noisy solution point the tail ends of a few of BA's 747-400s at the afforementioned pile (of snow) and MAX ground idle for an hour or two.. and there's always those anti fog turbines at CDG - Do the outlets blow away from thr RWY in snowy conditions allowing the snow scrape scrape to be deposited ? and yes I have just realised thw RWYS are the best part of 14000 Ft long - Sorry for the Jumbo idea but snow blowers of some kind might work.
CAT III